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<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <title>Report Genius AI — RICS Survey Report Generator</title>
 <link rel="icon" href="/favicon.ico" />
 <style>
 *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
 :root {
 --navy: #1b3a5c;
 --navy-lt: #274d7a;
 --gold: #c8a020;
 --gold-lt: #e8c040;
 --purple: #6b3fa0;
 --purple-lt:#8a5cc0;
 --teal: #0e7c86;
 --bg: #f0f3f8;
 --card: #ffffff;
 --border: #d4dce8;
 --text: #1a2332;
 --muted: #5a6a7e;
 --success: #1a7f4b;
 --warn: #c85a00;
 --danger: #c0392b;
 --radius: 10px;
 --shadow: 0 2px 12px rgba(27,58,92,.10);
 --transition: .2s ease;
 }
 /* body baseline — full rule is in the theme block above */
 /* Header */
 header { background: var(--header-bg, var(--navy)); color: #fff; padding: 0 2rem; display: flex; align-items: center; height: 64px; gap: 1rem; box-shadow: 0 2px 8px rgba(0,0,0,.25); position: sticky; top: 0; z-index: 100; }
 .logo { display: flex; align-items: center; gap: .6rem; font-size: 1.2rem; font-weight: 700; letter-spacing: .03em; }
 .logo-icon { width: 36px; height: 36px; background: var(--gold); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
 .logo span { color: var(--gold); }
 header .subtitle { color: rgba(255,255,255,.55); font-size: .82rem; margin-left: .3rem; }
 header .spacer { flex: 1; }
 .tenant-badge { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); border-radius: 20px; padding: .25rem .8rem; font-size: .78rem; color: rgba(255,255,255,.8); display: none; }
 .tenant-badge.visible { display: block; }
 /* Steps */
 .steps { background: var(--navy-lt); display: flex; justify-content: center; gap: 0; padding: .7rem 2rem; }
 .step-item { display: flex; align-items: center; gap: .5rem; padding: .3rem 1.2rem; color: rgba(255,255,255,.4); font-size: .82rem; font-weight: 500; transition: var(--transition); }
 .step-item.active { color: #fff; }
 .step-item.done { color: var(--gold); }
 .step-num { width: 22px; height: 22px; border-radius: 50%; background: rgba(255,255,255,.15); color: rgba(255,255,255,.5); display: flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; flex-shrink: 0; transition: var(--transition); }
 .step-item.active .step-num { background: var(--gold); color: var(--navy); }
 .step-item.done .step-num { background: var(--success); color: #fff; }
 .step-sep { color: rgba(255,255,255,.2); font-size: .7rem; align-self: center; }
 /* Main layout */
 main { max-width: 900px; margin: 2.5rem auto; padding: 0 1.5rem 4rem; }
 /* Cards */
 .card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); overflow: hidden; }
 .card + .card { margin-top: 1.2rem; }
 .card-head { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-lt) 100%); color: #fff; padding: 1.2rem 1.5rem; display: flex; align-items: center; gap: .8rem; }
 .card-head h2 { font-size: 1.05rem; font-weight: 600; }
 .card-head p { font-size: .82rem; color: rgba(255,255,255,.65); margin-top: .15rem; }
 .card-body { padding: 1.5rem; }
 /* Buttons */
 .btn { display: inline-flex; align-items: center; gap: .45rem; padding: .6rem 1.4rem; border-radius: 7px; font-size: .9rem; font-weight: 600; cursor: pointer; border: none; transition: all var(--transition); text-decoration: none; }
 .btn-primary { background: var(--navy); color: #fff; }
 .btn-primary:hover { background: var(--navy-lt); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(27,58,92,.3); }
 .btn-gold { background: var(--gold); color: var(--navy); }
 .btn-gold:hover { background: var(--gold-lt); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(200,160,32,.35); }
 .btn-purple { background: var(--purple); color: #fff; }
 .btn-purple:hover { background: var(--purple-lt); transform: translateY(-1px); }
 .btn-teal { background: var(--teal); color: #fff; }
 .btn-teal:hover { background: #0a6870; transform: translateY(-1px); }
 .btn-outline { background: transparent; color: var(--navy); border: 1.5px solid var(--border); }
 .btn-outline:hover { border-color: var(--navy); background: var(--bg); }
 .btn-sm { padding: .35rem .9rem; font-size: .8rem; }
 .btn:disabled { opacity: .45; cursor: not-allowed; transform: none !important; }
 /* Upload */
 #step-upload { display: block; }
 .upload-zone { border: 2.5px dashed var(--border); border-radius: var(--radius); padding: 3rem 2rem; text-align: center; cursor: pointer; transition: all var(--transition); background: var(--bg); }
 .upload-zone:hover, .upload-zone.drag-over { border-color: var(--navy); background: #e8eef7; }
 .upload-zone.has-file { border-color: var(--success); background: #edf7f2; }
 .upload-zone .icon { font-size: 3rem; margin-bottom: .75rem; display: block; }
 .upload-zone h3 { font-size: 1.05rem; color: var(--navy); margin-bottom: .4rem; }
 .upload-zone p { font-size: .85rem; color: var(--muted); }
 .upload-zone .file-name { margin-top: 1rem; background: var(--card); border-radius: 6px; padding: .5rem 1rem; display: inline-flex; align-items: center; gap: .5rem; font-size: .85rem; color: var(--success); font-weight: 600; border: 1px solid #b2dfcb; }
 #file-input { display: none; }
 .form-group { margin-top: 1.2rem; }
 .form-group label { display: block; font-size: .85rem; font-weight: 600; color: var(--text); margin-bottom: .35rem; }
 .form-group input { width: 100%; padding: .6rem .9rem; border: 1.5px solid var(--border); border-radius: 7px; font-size: .9rem; font-family: inherit; color: var(--text); background: var(--bg); transition: border-color var(--transition); }
 .form-group input:focus { outline: none; border-color: var(--navy); background: #fff; box-shadow: 0 0 0 3px rgba(27,58,92,.08); }
 .form-hint { font-size: .77rem; color: var(--muted); margin-top: .3rem; }
 /* Processing */
 #step-processing { display: none; }
 .processing-card { text-align: center; padding: 3rem 2rem; }
 .spinner { width: 56px; height: 56px; border-radius: 50%; border: 5px solid var(--border); border-top-color: var(--navy); animation: spin .9s linear infinite; margin: 0 auto 1.5rem; }
 @keyframes spin { to { transform: rotate(360deg); } }
 .processing-card h3 { font-size: 1.1rem; color: var(--navy); margin-bottom: .5rem; }
 .processing-card p { color: var(--muted); font-size: .9rem; }
 .status-pill { display: inline-flex; align-items: center; gap: .4rem; padding: .3rem .9rem; border-radius: 20px; font-size: .8rem; font-weight: 600; margin-top: 1rem; }
 .pill-pending { background: #fff3e0; color: #c85a00; }
 .pill-processing { background: #e3f0ff; color: var(--navy-lt); }
 .pill-complete { background: #e8f5ee; color: var(--success); }
 .pill-failed { background: #fdeaea; color: var(--danger); }
 /* Style Profile Card */
 .style-profile-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .7rem; margin-bottom: 1rem; }
 .style-chip { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: .6rem .9rem; }
 .style-chip .sc-label { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin-bottom: .2rem; }
 .style-chip .sc-value { font-size: .88rem; font-weight: 600; color: var(--navy); }
 .style-summary-box { background: linear-gradient(135deg, #f0f3f8, #e8eef7); border: 1px solid var(--border); border-radius: 8px; padding: .8rem 1rem; font-size: .87rem; color: var(--navy); border-left: 3px solid var(--gold); }
 .style-phrases { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .6rem; }
 .style-phrase { background: #e8f0fb; color: var(--navy-lt); border-radius: 12px; padding: .2rem .7rem; font-size: .78rem; font-style: italic; }
 /* Configure */
 #step-configure { display: none; }
 .doc-summary { display: flex; align-items: center; gap: 1rem; background: #e8f5ee; border: 1px solid #b2dfcb; border-radius: 8px; padding: .9rem 1.2rem; margin-bottom: 1.5rem; }
 .doc-summary .doc-icon { font-size: 1.8rem; }
 .doc-summary strong { color: var(--success); display: block; }
 .doc-summary span { font-size: .82rem; color: var(--muted); }
 .sections-label { font-size: .82rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: .9rem; }
 .section-group-header { display: flex; align-items: center; gap: .7rem; margin: 1.5rem 0 .6rem; }
 .section-group-header .grp-badge { background: var(--navy); color: #fff; border-radius: 6px; padding: .2rem .7rem; font-size: .82rem; font-weight: 700; letter-spacing: .04em; }
 .section-group-header .grp-label { font-size: .9rem; font-weight: 700; color: var(--navy); }
 .section-group-header .grp-line { flex: 1; height: 1px; background: var(--border); }
 .section-card { border: 1.5px solid var(--border); border-radius: 9px; margin-bottom: .85rem; overflow: hidden; transition: border-color var(--transition); }
 .section-card.active { border-color: var(--navy); }
 .section-card.ai-proofread { border-color: var(--gold); }
 .section-card.ai-enhance { border-color: var(--purple); }
 .section-card.locked { border-color: #ccc; }
 .section-head { display: flex; align-items: center; gap: .8rem; padding: .9rem 1.1rem; cursor: pointer; background: var(--card); user-select: none; }
 .section-code { background: var(--navy); color: #fff; border-radius: 5px; padding: .15rem .5rem; font-size: .78rem; font-weight: 700; min-width: 34px; text-align: center; }
 .section-card.ai-proofread .section-code { background: var(--gold); color: var(--navy); }
 .section-card.ai-enhance .section-code { background: var(--purple); color: #fff; }
 .section-card.locked .section-code { background: #bbb; color: #fff; }
 .section-head-text { flex: 1; }
 .section-head-text strong { font-size: .92rem; color: var(--text); }
 .section-head-text p { font-size: .78rem; color: var(--muted); margin-top: .05rem; }
 .toggle-wrap { display: flex; align-items: center; gap: .5rem; }
 .toggle-label { font-size: .75rem; color: var(--muted); }
 .toggle { position: relative; width: 40px; height: 22px; -webkit-appearance: none; appearance: none; background: var(--border); border-radius: 11px; cursor: pointer; transition: background var(--transition); flex-shrink: 0; }
 .toggle::before { content: ''; position: absolute; width: 16px; height: 16px; background: #fff; border-radius: 50%; top: 3px; left: 3px; transition: left var(--transition); box-shadow: 0 1px 4px rgba(0,0,0,.2); }
 .toggle:checked { background: var(--navy); }
 .toggle:checked::before { left: 21px; }
 .section-body { padding: 0 1.1rem; max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease; }
 .section-body.open { max-height: 600px; padding: 0 1.1rem 1rem; }
 /* AI Mode Tabs */
 .ai-mode-panel { margin: .6rem 0 .8rem; }
 .ai-mode-label { font-size: .75rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; margin-bottom: .5rem; }
 .ai-mode-tabs { display: flex; gap: .4rem; flex-wrap: wrap; }
 .ai-mode-tab { display: inline-flex; align-items: center; gap: .35rem; padding: .4rem 1rem; border-radius: 7px; font-size: .82rem; font-weight: 600; cursor: pointer; border: 1.5px solid var(--border); background: var(--bg); color: var(--muted); transition: all var(--transition); }
 .ai-mode-tab:hover { border-color: var(--navy); color: var(--navy); background: #edf1f8; }
 .ai-mode-tab.active[data-task="generate"] { background: var(--navy); color: #fff; border-color: var(--navy); }
 .ai-mode-tab.active[data-task="proofread"] { background: var(--gold); color: var(--navy); border-color: var(--gold); }
 .ai-mode-tab.active[data-task="enhance"] { background: var(--purple); color: #fff; border-color: var(--purple); }
 .ai-mode-desc { font-size: .77rem; color: var(--muted); margin-top: .4rem; padding: .4rem .8rem; background: #f8f9fb; border-radius: 5px; border-left: 3px solid var(--border); }
 .ai-mode-tab.active[data-task="generate"] ~ .ai-mode-desc { border-left-color: var(--navy); }
 .ai-mode-tab.active[data-task="proofread"] ~ .ai-mode-desc { border-left-color: var(--gold); }
 .ai-mode-tab.active[data-task="enhance"] ~ .ai-mode-desc { border-left-color: var(--purple); }
 .keep-msg { display: none; align-items: center; gap: .5rem; background: #f5f5f5; border-radius: 6px; padding: .6rem .9rem; font-size: .82rem; color: var(--muted); margin-top: .5rem; }
 .keep-msg.visible { display: flex; }
 .bullets-area { width: 100%; min-height: 80px; resize: vertical; padding: .6rem .8rem; border: 1.5px solid var(--border); border-radius: 6px; font-size: .85rem; font-family: inherit; background: var(--bg); color: var(--text); line-height: 1.5; }
 .bullets-area:focus { outline: none; border-color: var(--navy); background: #fff; }
 .bullets-hint { font-size: .75rem; color: var(--muted); margin-top: .3rem; background: #f8f9fb; border-radius: 4px; padding: .4rem .7rem; border-left: 3px solid var(--border); }
 .generate-bar { display: flex; justify-content: space-between; align-items: center; margin-top: 2rem; padding-top: 1.2rem; border-top: 1.5px solid var(--border); }
 .generate-bar .count { font-size: .85rem; color: var(--muted); }
 .generate-bar .count strong { color: var(--navy); }
 /* Generating step */
 #step-generating { display: none; }
 .gen-section-list { display: flex; flex-direction: column; gap: .6rem; }
 .gen-row { display: flex; align-items: center; gap: .8rem; background: var(--bg); border-radius: 7px; padding: .7rem 1rem; border: 1.5px solid var(--border); }
 .gen-row .code { border-radius: 5px; padding: .15rem .5rem; font-size: .78rem; font-weight: 700; min-width: 34px; text-align: center; flex-shrink: 0; color: #fff; }
 .gen-row .code.c-generate { background: var(--navy); }
 .gen-row .code.c-proofread { background: var(--gold); color: var(--navy); }
 .gen-row .code.c-enhance { background: var(--purple); }
 .gen-row .code.c-keep { background: #aaa; }
 .gen-row .label { flex: 1; font-size: .88rem; }
 .gen-row .gen-status { font-size: .78rem; font-weight: 600; padding: .2rem .7rem; border-radius: 12px; }
 .gs-waiting { background: #f0f3f8; color: var(--muted); }
 .gs-working { background: #e3f0ff; color: var(--navy-lt); }
 .gs-done { background: #e8f5ee; color: var(--success); }
 .gs-skip { background: #f5f5f5; color: var(--muted); }
 .gs-error { background: #fdeaea; color: var(--danger); }
 .gen-row .progress-bar { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; flex: 1; }
 .gen-row .progress-fill { height: 100%; border-radius: 2px; width: 0%; transition: width .6s ease; }
 .pf-generate { background: var(--navy); }
 .pf-proofread { background: var(--gold); }
 .pf-enhance { background: var(--purple); }
 /* Results */
 #step-results { display: none; }
 .results-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.2rem; }
 .results-header h2 { font-size: 1.1rem; color: var(--navy); }
 .result-card { border: 1.5px solid var(--border); border-radius: 9px; margin-bottom: 1.1rem; overflow: hidden; background: var(--card); box-shadow: var(--shadow); }
 .result-card.mode-proofread { border-color: var(--gold); }
 .result-card.mode-enhance { border-color: var(--purple); }
 .result-head { display: flex; align-items: center; gap: .8rem; padding: .8rem 1.1rem; border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: .6rem; }
 .result-head.mode-generate { background: linear-gradient(to right, #f0f4fa, #e8eef7); }
 .result-head.mode-proofread { background: linear-gradient(to right, #fffbee, #fff6d0); }
 .result-head.mode-enhance { background: linear-gradient(to right, #f5f0ff, #ede5ff); }
 .result-head.mode-keep { background: linear-gradient(to right, #f8f8f8, #f0f0f0); }
 .result-head .code { border-radius: 5px; padding: .15rem .5rem; font-size: .78rem; font-weight: 700; min-width: 34px; text-align: center; color: #fff; }
 .code-generate { background: var(--navy); }
 .code-proofread { background: var(--gold); color: var(--navy) !important; }
 .code-enhance { background: var(--purple); }
 .code-keep { background: #aaa; }
 .result-head strong { flex: 1; font-size: .92rem; }
 .mode-badge { font-size: .72rem; font-weight: 700; padding: .2rem .7rem; border-radius: 12px; }
 .mb-generate { background: #e3f0ff; color: var(--navy); }
 .mb-proofread { background: #fff3cc; color: #7a5c00; }
 .mb-enhance { background: #f0e8ff; color: var(--purple); }
 .mb-keep { background: #f0f0f0; color: var(--muted); }
 .conf-badge { font-size: .75rem; font-weight: 600; padding: .2rem .7rem; border-radius: 12px; background: #e8f5ee; color: var(--success); }
 .conf-badge.low { background: #fff3e0; color: var(--warn); }
 .cached-badge { font-size: .72rem; background: #e3f0ff; color: var(--navy-lt); padding: .15rem .55rem; border-radius: 10px; font-weight: 600; }
 .style-badge { font-size: .72rem; background: #fdf6e3; color: #7a5c00; padding: .15rem .55rem; border-radius: 10px; font-weight: 600; border: 1px solid #f0d080; }
 .result-body { padding: 1.1rem; }
 /*
 * .result-text is contenteditable="plaintext-only" — surveyors can edit
 * the rendered output inline. Edits are debounced-saved (700 ms) via
 * PATCH /reports/{report_id}/sections/{section_code}, persisted to the
 * DB along with meta.user_edited = true, and reflected in
 * state.results[code].text so subsequent re-runs use the edited body
 * as draft_paragraph. The save flow is implemented in
 * bindResultTextEditing() / _saveSectionEdit() — do not alter the
 * status-pill copy/sequence or the debounce timing without coordinating
 * with the backend contract. The hover/focus styles below provide a
 * subtle affordance that the area is editable.
 */
 .result-text { font-size: .92rem; line-height: 1.75; color: var(--text); white-space: pre-wrap; background: #fafbfc; border-radius: 6px; padding: .9rem 1rem; border: 1px solid var(--border); transition: border-color var(--transition), background var(--transition); }
 .result-text[contenteditable="true"] { cursor: text; }
 .result-text[contenteditable="true"]:hover { border-color: #b8d4f5; }
 .result-text[contenteditable="true"]:focus { outline: none; border-color: var(--navy); background: #fff; box-shadow: 0 0 0 2px rgba(26, 80, 145, .12); }
 .result-text.edited { border-color: #b8d4f5; }
 /* Edit status pill — copy/sequence is part of the spec; do not change. */
 .edit-status { font-size: .72rem; font-weight: 600; padding: .15rem .55rem; border-radius: 10px; background: #f0f4fa; color: var(--navy-lt); border: 1px solid #d0dcf0; white-space: nowrap; user-select: none; }
 .edit-status.is-saving { background: #fff7e0; color: #7a5c00; border-color: #f0d080; }
 .edit-status.is-saved { background: #e8f5ee; color: var(--success); border-color: #b8e0c8; }
 .edit-status.is-error { background: #fdecea; color: var(--danger); border-color: #f0b8b0; }
 .editor-notes { margin-top: .7rem; background: #fffbee; border: 1px solid #f0d080; border-radius: 6px; padding: .7rem 1rem; font-size: .83rem; color: #7a5c00; }
 .editor-notes strong { display: block; margin-bottom: .3rem; }
 .verify-tag { background: #fff3e0; color: var(--warn); border-radius: 3px; padding: .05rem .3rem; font-weight: 700; font-size: .85em; border: 1px solid #ffe0b2; }
 .result-meta { display: flex; gap: .6rem; margin-top: .8rem; flex-wrap: wrap; align-items: center; }
 .interference-result-badge { font-size: .7rem; background: #f0ecff; color: var(--purple); padding: .15rem .55rem; border-radius: 10px; font-weight: 600; border: 1px solid #d0c4f0; cursor: help; }
 .meta-chip { font-size: .75rem; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: .2rem .7rem; color: var(--muted); }
 .prov-list { margin-top: .8rem; font-size: .78rem; color: var(--muted); background: var(--bg); border-radius: 6px; padding: .6rem .9rem; border: 1px solid var(--border); }
 .prov-list summary { cursor: pointer; font-weight: 600; color: var(--navy-lt); }
 .prov-item { padding: .3rem 0; border-bottom: 1px solid var(--border); display: flex; gap: .6rem; flex-wrap: wrap; }
 .prov-item:last-child { border: none; }
 .prov-item code { font-size: .72rem; background: #e8eef7; border-radius: 3px; padding: .05rem .35rem; color: var(--navy); }
 .result-actions { display: flex; gap: .5rem; margin-top: .9rem; flex-wrap: wrap; }
 /* AI Involvement transparency (aggregate + per-section) */
 .ai-transparency-panel { background: linear-gradient(135deg, #f0f7ff, #e8f0ff); border: 1.5px solid #b8d4f5; border-radius: 10px; padding: 1rem 1.2rem; margin-bottom: 1.2rem; }
 .ai-transparency-panel.hidden { display: none; }
 .ai-transparency-head { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: .5rem; }
 .ai-transparency-head strong { font-size: .95rem; color: var(--navy); }
 .ai-involve-meter { flex: 1; min-width: 160px; height: 10px; background: #dde8f5; border-radius: 6px; overflow: hidden; }
 .ai-involve-fill { height: 100%; background: linear-gradient(90deg, var(--teal), var(--purple)); border-radius: 6px; transition: width .4s ease; }
 .ai-involve-pct { font-size: 1.1rem; font-weight: 800; color: var(--navy); min-width: 3.2rem; }
 .ai-transparency-details { font-size: .8rem; color: var(--muted); line-height: 1.5; }
 .ai-transparency-details summary { cursor: pointer; font-weight: 600; color: var(--navy-lt); margin-bottom: .35rem; }
 .section-transparency { font-size: .75rem; color: var(--muted); margin-top: .5rem; padding: .5rem .75rem; background: #f8fafc; border-radius: 6px; border-left: 3px solid var(--teal); }
 .cite-row { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .65rem; align-items: center; }
 .cite-label { font-size: .72rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
 .cite-chip { display: inline-flex; align-items: center; gap: .25rem; font-size: .74rem; padding: .2rem .55rem; border-radius: 12px; border: 1px solid var(--border); background: #fff; color: var(--navy-lt); cursor: help; max-width: 100%; }
 .cite-chip:hover { border-color: var(--navy); background: #f0f4fa; }
 .cite-chip kbd { font-size: .68rem; opacity: .75; }
 /* ── Auth gate ─────────────────────────────────────────────────────── */
 .auth-overlay { position: fixed; inset: 0; z-index: 9800; display: flex; align-items: center; justify-content: center; padding: 1.5rem; background: linear-gradient(135deg, #0d1a28, #14304a); }
 .auth-overlay.hidden-gate { display: none; }
 body.auth-gate { overflow: hidden; }
 .auth-card { width: min(420px, 100%); background: var(--card); border: 1.5px solid var(--border); border-radius: 14px; box-shadow: 0 18px 60px rgba(0,0,0,.35); padding: 2rem 1.8rem; }
 .auth-brand { font-size: 1.4rem; font-weight: 800; color: var(--navy); text-align: center; }
 .auth-brand span { color: var(--teal); }
 .auth-logo { font-size: 1.5rem; }
 .auth-tagline { font-size: .85rem; color: var(--muted); text-align: center; margin: .5rem 0 1.4rem; line-height: 1.5; }
 .auth-tabs { display: flex; gap: .4rem; background: #eef2f8; border-radius: 8px; padding: .25rem; margin-bottom: 1.2rem; }
 .auth-tab { flex: 1; border: none; background: transparent; padding: .55rem; border-radius: 6px; font-size: .85rem; font-weight: 600; color: var(--muted); cursor: pointer; transition: all var(--transition); }
 .auth-tab.active { background: var(--card); color: var(--navy); box-shadow: 0 1px 4px rgba(0,0,0,.08); }
 .auth-submit { width: 100%; margin-top: .4rem; justify-content: center; }
 html.dark .auth-tabs { background: #18202c; }
 html.dark .auth-card { background: #0f1c2b; }
 .app-toast { position: fixed; bottom: 1.5rem; right: 1.5rem; max-width: 22rem; padding: .75rem 1rem; border-radius: 8px; color: #fff; font-size: .88rem; z-index: 9999; box-shadow: 0 4px 20px rgba(0,0,0,.15); transition: opacity .25s ease; }
 .app-toast.hidden { opacity: 0; pointer-events: none; }
 .app-toast.toast-ok { background: #1a5f4a; }
 .app-toast.toast-warn { background: #8a6d3b; }
 .app-toast.toast-err { background: #b71c1c; }
 .bullets-toolbar { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: .5rem; margin-bottom: .35rem; }
 .bullets-toolbar label { margin: 0; flex: 1; min-width: 12rem; }
 .btn-similar { font-size: .78rem; font-weight: 600; padding: .35rem .75rem; border-radius: 6px; border: 1.5px solid var(--navy); background: #fff; color: var(--navy); cursor: pointer; white-space: nowrap; transition: all var(--transition); }
 .btn-similar:hover { background: var(--navy); color: #fff; }
 .similar-modal { position: fixed; inset: 0; z-index: 9000; display: flex; align-items: flex-start; justify-content: center; padding: 4vh 1rem; overflow-y: auto; }
 .similar-modal.hidden { display: none; }
 .similar-modal-backdrop { position: fixed; inset: 0; background: rgba(15, 25, 40, .55); backdrop-filter: blur(2px); }
 .similar-modal-panel { position: relative; z-index: 1; width: min(720px, 100%); background: var(--card); border: 1.5px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); max-height: 90vh; overflow: hidden; display: flex; flex-direction: column; }
 .similar-modal-head { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.2rem; border-bottom: 1px solid var(--border); background: linear-gradient(135deg, #f8fafc, #eef2f8); }
 .similar-modal-head h3 { margin: 0; font-size: 1.05rem; color: var(--navy); }
 .similar-modal-close { border: none; background: transparent; font-size: 1.5rem; line-height: 1; cursor: pointer; color: var(--muted); padding: 0 .25rem; }
 .similar-modal-close:hover { color: var(--danger); }
 .similar-modal-body { padding: 1rem 1.2rem 1.4rem; overflow-y: auto; flex: 1; }
 /* ── RAG Document Manager ─────────────────────────────────────────── */
 .docmgr-toolbar { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: .75rem; flex-wrap: wrap; }
 .docmgr-count { font-size: .8rem; color: var(--muted); font-weight: 600; }
 .docmgr-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
 .docmgr-table th { text-align: left; font-size: .68rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 700; padding: .4rem .55rem; border-bottom: 1.5px solid var(--border); white-space: nowrap; }
 .docmgr-table td { padding: .55rem .55rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
 .docmgr-table tr:last-child td { border-bottom: none; }
 .docmgr-table tr.row-deleting { opacity: .5; pointer-events: none; }
 .docmgr-fname { font-weight: 600; color: var(--navy); word-break: break-word; max-width: 22rem; }
 .docmgr-id { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .68rem; color: var(--muted); }
 .docmgr-meta { font-size: .72rem; color: var(--muted); white-space: nowrap; }
 .docmgr-badge { display: inline-block; font-size: .66rem; font-weight: 700; padding: .12rem .5rem; border-radius: 10px; text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
 .docmgr-badge.b-ready { background: #e3f4ec; color: #1a5f4a; }
 .docmgr-badge.b-processing { background: #fef6e0; color: #8a6d3b; }
 .docmgr-badge.b-pending { background: #eef2f8; color: var(--navy-lt); }
 .docmgr-badge.b-failed { background: #fdecea; color: #b71c1c; }
 .docmgr-badge.b-session { background: var(--teal); color: #fff; margin-left: .35rem; }
 .docmgr-badge.b-style { background: #ece3f7; color: #5b3a8a; }
 .docmgr-del { font-size: .76rem; font-weight: 600; padding: .32rem .7rem; border-radius: 6px; border: 1.5px solid var(--danger); background: #fff; color: var(--danger); cursor: pointer; white-space: nowrap; transition: all var(--transition); }
 .docmgr-del:hover { background: var(--danger); color: #fff; }
 .docmgr-del:disabled { opacity: .5; cursor: default; }
 .docmgr-empty { text-align: center; padding: 2.5rem 1rem; color: var(--muted); }
 .docmgr-empty .icon { font-size: 2.2rem; display: block; margin-bottom: .6rem; }
 .docmgr-spinner { width: 1.05rem; height: 1.05rem; border: 2.5px solid rgba(0,0,0,.15); border-top-color: var(--navy); border-radius: 50%; display: inline-block; animation: docmgr-spin .7s linear infinite; vertical-align: middle; }
 @keyframes docmgr-spin { to { transform: rotate(360deg); } }
 .docmgr-loading { text-align: center; padding: 2rem 1rem; color: var(--muted); }
 html.dark .docmgr-badge.b-ready { background: #14352a; color: #6fdab2; }
 html.dark .docmgr-badge.b-processing { background: #3a2f17; color: #e6c878; }
 html.dark .docmgr-badge.b-pending { background: #18202c; color: #9db4d0; }
 html.dark .docmgr-badge.b-failed { background: #3a1715; color: #f0a39d; }
 html.dark .docmgr-badge.b-style { background: #2a1f3a; color: #c5a8e8; }
 html.dark .similar-modal-head[style*="fdecea"], html.dark #doc-delete-modal .similar-modal-head { background: #3a1715 !important; }
 .photo-ai-hint { font-size: .78rem; color: var(--muted); margin-top: .45rem; line-height: 1.4; }
 .photo-thumb-wrap { position: relative; display: inline-flex; flex-direction: column; align-items: center; gap: 4px; max-width: 96px; }
 .photo-thumb-frame { position: relative; display: block; line-height: 0; }
 .photo-thumb-wrap img { display: block; width: 86px; height: 64px; object-fit: cover; border-radius: 10px; border: 2px solid #d8deea; background: #e8ecf2; transition: border-color var(--transition), box-shadow var(--transition); }
 .photo-thumb-wrap.ai-selected img { border-color: var(--teal); box-shadow: 0 0 0 2px rgba(14,124,134,.25); }
 .photo-thumb-name { font-size: .62rem; color: var(--muted); max-width: 86px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: center; }
 .photo-ai-tick { position: absolute; top: 4px; right: 4px; width: 26px; height: 26px; border-radius: 50%; border: 2px solid #fff; background: rgba(27,58,92,.55); color: #fff; font-size: .85rem; font-weight: 700; cursor: pointer; display: flex; align-items: center; justify-content: center; line-height: 1; box-shadow: 0 1px 4px rgba(0,0,0,.2); transition: background var(--transition), transform var(--transition); z-index: 2; }
 .photo-del-btn { position: absolute; top: 4px; left: 4px; width: 22px; height: 22px; border-radius: 50%; border: 2px solid #fff; background: rgba(192,57,43,.92); color: #fff; font-size: .95rem; font-weight: 700; cursor: pointer; display: flex; align-items: center; justify-content: center; line-height: 1; box-shadow: 0 1px 4px rgba(0,0,0,.2); z-index: 2; padding: 0; }
 .photo-del-btn:hover { background: var(--danger); }
 .photo-ai-tick:hover { transform: scale(1.06); }
 .photo-ai-tick.on { background: var(--teal); border-color: #fff; }
 .photo-ai-tick:disabled { opacity: .45; cursor: not-allowed; transform: none; }
 .photo-slot-count { font-size: .72rem; color: var(--muted); margin-top: 6px; }
 .similar-intro { font-size: .86rem; color: var(--muted); margin: 0 0 1rem; line-height: 1.5; }
 .similar-h4 { margin: 1.2rem 0 .6rem; font-size: .88rem; color: var(--navy); text-transform: uppercase; letter-spacing: .04em; }
 .similar-h4:first-of-type { margin-top: 0; }
 .similar-card { border: 1.5px solid var(--border); border-radius: 8px; padding: .75rem 1rem; margin-bottom: .75rem; background: var(--bg); }
 .similar-card.hidden { display: none; }
 .similar-meta { font-size: .78rem; color: var(--muted); margin-bottom: .5rem; }
 .similar-pre { margin: 0; font-size: .8rem; white-space: pre-wrap; word-break: break-word; max-height: 140px; overflow-y: auto; background: #f4f6fa; padding: .5rem .65rem; border-radius: 5px; border: 1px solid var(--border); }
 .similar-cols { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
 @media (max-width: 640px) { .similar-cols { grid-template-columns: 1fr; } }
 .similar-cols .lbl { font-size: .68rem; font-weight: 700; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: .2rem; }
 .similar-actions { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .65rem; }
 .similar-actions .btn-sm { font-size: .74rem; padding: .3rem .6rem; border-radius: 5px; border: 1px solid var(--border); background: #fff; cursor: pointer; color: var(--navy); }
 .similar-actions .btn-sm:hover { border-color: var(--navy); background: #f0f4fa; }
 .similar-actions .btn-muted { color: var(--muted); }
 .similar-actions .btn-danger { border-color: #e8a0a0; color: var(--danger); }
 .similar-actions .btn-danger:hover { background: #fff5f5; }
 .similar-loading, .similar-empty, .similar-err { font-size: .88rem; color: var(--muted); }
 .similar-err { color: var(--danger); }
 /* Alerts */
 .alert { padding: .7rem 1rem; border-radius: 7px; font-size: .85rem; display: flex; align-items: center; gap: .6rem; margin-bottom: .8rem; }
 .alert-info { background: #e3f0ff; color: var(--navy-lt); border: 1px solid #b8d4f5; }
 .alert-warn { background: #fff3e0; color: var(--warn); border: 1px solid #ffe0b2; }
 .alert-error { background: #fdeaea; color: var(--danger); border: 1px solid #f5c6c6; }
 .alert-ok { background: #e8f5ee; color: var(--success); border: 1px solid #b2dfcb; }
 /* Notes upload panel (single global) */
 .notes-upload-panel { background: linear-gradient(135deg, #e6f6f7, #d0f0f3); border: 1.5px solid var(--teal); border-radius: 10px; padding: 1.1rem 1.3rem; margin-bottom: 1.2rem; }
 .notes-upload-title { font-size: .82rem; font-weight: 700; color: var(--teal); text-transform: uppercase; letter-spacing: .07em; margin-bottom: .5rem; display: flex; align-items: center; gap: .45rem; }
 .notes-upload-row { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
 .notes-upload-desc { font-size: .8rem; color: #0a6870; flex: 1; min-width: 180px; line-height: 1.45; }
 .notes-upload-btn { display: inline-flex; align-items: center; gap: .4rem; padding: .5rem 1.2rem; border-radius: 7px; font-size: .85rem; font-weight: 700; cursor: pointer; border: none; background: var(--teal); color: #fff; transition: all var(--transition); flex-shrink: 0; }
 .notes-upload-btn:hover { background: #0a6870; transform: translateY(-1px); box-shadow: 0 4px 10px rgba(14,124,134,.3); }
 .notes-upload-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
 .notes-upload-status { font-size: .78rem; margin-top: .55rem; padding: .4rem .75rem; border-radius: 6px; display: none; }
 .nus-ok { background: #e8f5ee; color: var(--success); display: block !important; }
 .nus-err { background: #fdeaea; color: var(--danger); display: block !important; }
 .nus-busy { background: #e3f0ff; color: var(--navy-lt); display: block !important; }
 .nus-warn { background: #fff3cd; color: #856404; display: block !important; }
 /* Report composition depth (minimum | medium | maximum) */
 .ai-interference-panel { background: linear-gradient(135deg, #f8f6ff, #f0ecff); border: 1.5px solid #d0c4f0; border-radius: 12px; padding: 1.1rem 1.25rem; margin-bottom: 1.4rem; }
 .ai-interference-title { font-size: .82rem; font-weight: 700; color: var(--purple); text-transform: uppercase; letter-spacing: .07em; margin-bottom: .55rem; display: flex; align-items: center; gap: .45rem; }
 .interference-pill-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .65rem; margin-top: .35rem; }
 @media (max-width: 820px) { .interference-pill-row { grid-template-columns: 1fr; } }
 .interference-pill {
 cursor: pointer; text-align: left; border-radius: 12px; border: 2px solid var(--border);
 background: var(--card); padding: .75rem .8rem .7rem; min-height: 5.5rem;
 transition: border-color .2s ease, box-shadow .2s ease, background .2s ease, transform .2s ease;
 display: flex; flex-direction: column; gap: .35rem; position: relative; color: inherit; font: inherit;
 }
 .interference-pill:focus-visible { outline: 2px solid var(--purple); outline-offset: 2px; }
 .interference-pill:hover { border-color: #b8a0e0; background: #faf9ff; }
 .interference-pill.active {
 border-width: 3px; border-color: var(--purple);
 box-shadow: 0 6px 22px rgba(107,63,160,.18), 0 0 0 1px rgba(107,63,160,.08) inset;
 background: linear-gradient(165deg, #faf8ff 0%, #f3ecff 100%);
 transform: translateY(-1px);
 }
 .interference-pill .pill-icon { font-size: 1.35rem; line-height: 1; transition: transform .28s ease; }
 .interference-pill.active .pill-icon { transform: scale(1.12) rotate(-3deg); }
 .interference-pill .pill-label { font-weight: 800; font-size: .86rem; color: var(--navy); }
 .interference-pill .pill-tagline { font-size: .72rem; color: var(--muted); line-height: 1.35; }
 .interference-detail { font-size: .78rem; color: var(--muted); margin-top: .65rem; padding: .45rem .85rem; background: rgba(255,255,255,.7); border-radius: 8px; border-left: 3px solid var(--purple); min-height: 2.6rem; }
 /* ── Theme Toggle Button ────────────────────────────────────────────────── */
 .theme-toggle {
 background: rgba(255,255,255,.12);
 border: 1.5px solid rgba(255,255,255,.22);
 border-radius: 22px;
 padding: .28rem .9rem .28rem .55rem;
 font-size: .82rem;
 font-weight: 600;
 color: rgba(255,255,255,.88);
 cursor: pointer;
 display: flex;
 align-items: center;
 gap: .45rem;
 transition: background var(--transition), border-color var(--transition);
 user-select: none;
 flex-shrink: 0;
 }
 .theme-toggle:hover { background: rgba(255,255,255,.22); border-color: rgba(255,255,255,.4); }
 .theme-toggle .th-icon { font-size: 1.05rem; transition: transform .35s ease; }
 html.dark .theme-toggle .th-icon { transform: rotate(20deg); }
 /* ── ☀️ LIGHT MODE (default) — Sunny White Shine ─────────────────────── */
 :root {
 --navy: #1b3a5c;
 --navy-lt: #274d7a;
 --gold: #c8a020;
 --gold-lt: #e8c040;
 --purple: #6b3fa0;
 --purple-lt:#8a5cc0;
 --teal: #0e7c86;
 --bg: #f5f8ff;
 --card: #ffffff;
 --border: #d4dce8;
 --text: #1a2332;
 --muted: #5a6a7e;
 --success: #1a7f4b;
 --warn: #c85a00;
 --danger: #c0392b;
 --radius: 10px;
 --shadow: 0 2px 16px rgba(27,58,92,.10);
 --transition: .2s ease;
 /* Light mode extras — sun glow */
 --page-bg: linear-gradient(160deg, #eef4ff 0%, #f9fbff 50%, #fffdf0 100%);
 --header-bg: linear-gradient(90deg, #1b3a5c 0%, #2c5285 100%);
 --shine-ring: 0 0 0 4px rgba(200,160,32,.08);
 }
 /* ── 🌧️ DARK MODE — Rainy Night ────────────────────────────────────────── */
 html.dark {
 --navy: #7aaddd;
 --navy-lt: #9ec5e8;
 --gold: #e8c040;
 --gold-lt: #f5d060;
 --purple: #b48fdf;
 --purple-lt:#caaff0;
 --teal: #38c5d0;
 --bg: #0d1520;
 --card: #111d2e;
 --border: #1e2e42;
 --text: #c8d8ec;
 --muted: #5a7a9a;
 --success: #3db87a;
 --warn: #e8904a;
 --danger: #e05555;
 --shadow: 0 4px 24px rgba(0,0,0,.55);
 /* Dark mode extras — rain atmosphere */
 --page-bg: linear-gradient(160deg, #080f18 0%, #0d1520 60%, #0a1825 100%);
 --header-bg: linear-gradient(90deg, #060e1a 0%, #0d1e33 100%);
 }
 /* Apply page background */
 body {
 font-family: 'Segoe UI', system-ui, sans-serif;
 background: var(--page-bg);
 color: var(--text);
 min-height: 100vh;
 line-height: 1.6;
 }
 /* Dark card surfaces */
 html.dark .card { background: var(--card); border-color: var(--border); }
 html.dark .card-head { background: linear-gradient(135deg, #0b1928 0%, #0d2035 100%); }
 html.dark .upload-zone { background: #0c1724; border-color: var(--border); }
 html.dark .upload-zone:hover, html.dark .upload-zone.drag-over { border-color: var(--teal); background: #0d1f30; }
 html.dark .upload-zone.has-file { border-color: var(--success); background: #0d1e18; }
 html.dark .upload-zone h3 { color: var(--navy); }
 html.dark .form-group input { background: #0c1724; color: var(--text); border-color: var(--border); }
 html.dark .form-group input:focus { background: #0f1e2e; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(56,197,208,.12); }
 html.dark .bullets-area { background: #0c1724; color: var(--text); border-color: var(--border); }
 html.dark .bullets-area:focus { background: #0f1e2e; border-color: var(--teal); }
 html.dark .ai-mode-tab { background: #0c1724; border-color: var(--border); color: var(--muted); }
 html.dark .ai-mode-tab:hover { border-color: var(--teal); color: var(--teal); background: #0d2030; }
 html.dark .ai-mode-desc { background: #0a1620; border-left-color: var(--border); }
 html.dark .keep-msg { background: #0d1624; }
 html.dark .bullets-hint { background: #0a1620; border-left-color: var(--border); }
 html.dark .section-card { border-color: var(--border); background: var(--card); }
 html.dark .section-group-header .grp-label { color: #a8c0e0; }
 html.dark .section-group-header .grp-line { background: var(--border); }
 html.dark .section-head { background: var(--card); }
 html.dark .section-card.active { border-color: var(--teal); }
 html.dark .gen-row { background: #0c1724; border-color: var(--border); }
 html.dark .result-card { background: var(--card); border-color: var(--border); }
 html.dark .result-head.mode-generate { background: linear-gradient(to right, #0d1e30, #0f2236); }
 html.dark .result-head.mode-proofread { background: linear-gradient(to right, #1a1600, #221c00); }
 html.dark .result-head.mode-enhance { background: linear-gradient(to right, #140b28, #1a1030); }
 html.dark .result-head.mode-keep { background: linear-gradient(to right, #111111, #181818); }
 html.dark .result-text { background: #0a1218; border-color: var(--border); color: var(--text); }
 html.dark .prov-list { background: #0a1218; border-color: var(--border); }
 html.dark .prov-item { border-color: var(--border); }
 html.dark .prov-item code { background: #0d1e2e; color: var(--navy); }
 html.dark .meta-chip { background: #0c1724; border-color: var(--border); }
 html.dark .doc-summary { background: #0d1e18; border-color: #1e3a2a; }
 html.dark .alert-info { background: #0d1e30; color: var(--navy-lt); border-color: #1a3350; }
 html.dark .alert-warn { background: #1e1200; color: var(--warn); border-color: #3a2200; }
 html.dark .alert-error { background: #200a0a; color: var(--danger); border-color: #3a1010; }
 html.dark .alert-ok { background: #0d1e18; color: var(--success); border-color: #1a3528; }
 html.dark .style-summary-box { background: linear-gradient(135deg, #0d1a28, #0e1e30); border-color: var(--border); color: var(--text); }
 html.dark .style-phrase { background: #0e1e30; color: var(--navy-lt); }
 html.dark .style-chip { background: #0c1724; border-color: var(--border); }
 html.dark .style-chip .sc-value { color: var(--navy); }
 html.dark .notes-upload-panel { background: linear-gradient(135deg, #081820, #0a2028); border-color: var(--teal); }
 html.dark .notes-upload-desc { color: var(--teal); }
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 html.dark .nus-ok { background: #0d1e18; color: var(--success); }
 html.dark .nus-err { background: #200a0a; color: var(--danger); }
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 html.dark .similar-modal-head { background: linear-gradient(135deg, #0d1a28, #0f2236); }
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 /* Misc */
 .hidden { display: none !important; }
 .divider { border: none; border-top: 1.5px solid var(--border); margin: 1.2rem 0; }
 </style>
</head>
<body class="auth-gate">
<header>
 <div class="logo">
 <div class="logo-icon">📋</div>
 Report Genius <span>AI</span>
 </div>
 <span class="subtitle">RICS Survey Report Generator</span>
 <div class="spacer"></div>
 <div class="tenant-badge" id="tenant-badge">Loading…</div>
 <button class="theme-toggle" id="btn-doc-manager" onclick="openDocManager()" title="View and delete your uploaded RAG documents">
 <span aria-hidden="true">🗂️</span>
 <span>My Documents</span>
 </button>
 <button class="theme-toggle" id="btn-logout" onclick="logout()" title="Sign out" style="display:none">
 <span aria-hidden="true">🚪</span>
 <span>Log out</span>
 </button>
 <button class="theme-toggle" id="theme-toggle-btn" onclick="toggleTheme()" title="Switch between light and dark mode">
 <span class="th-icon" id="theme-icon">☀️</span>
 <span id="theme-label">Light</span>
 </button>
</header>
<!-- ── Auth gate ─────────────────────────────────────────────────────────── -->
<div id="auth-overlay" class="auth-overlay" aria-hidden="false">
 <div class="auth-card">
 <div class="auth-brand"><span class="auth-logo">📋</span> Report Genius <span>AI</span></div>
 <p class="auth-tagline">Sign in to your private workspace. Your documents and reports are isolated to your account.</p>
 <div class="auth-tabs">
 <button type="button" class="auth-tab active" id="auth-tab-login" onclick="setAuthMode('login')">Log in</button>
 <button type="button" class="auth-tab" id="auth-tab-register" onclick="setAuthMode('register')">Create account</button>
 </div>
 <form id="auth-form" onsubmit="submitAuth(event)" autocomplete="on">
 <div class="form-group">
 <label for="auth-tenant">Tenant / User ID</label>
 <input type="text" id="auth-tenant" name="username" autocomplete="username" placeholder="e.g. acme_surveys" />
 <div class="form-hint">3–128 chars · letters, digits, '.', '_', '-'. This is your private workspace key.</div>
 </div>
 <div class="form-group">
 <label for="auth-pass">Passphrase</label>
 <input type="password" id="auth-pass" name="password" autocomplete="current-password" placeholder="At least 8 characters" />
 <div class="form-hint" id="auth-pass-hint">Use a strong, memorable passphrase. There is no recovery — keep it safe.</div>
 </div>
 <div id="auth-alert" class="hidden"></div>
 <button type="submit" class="btn btn-primary auth-submit" id="auth-submit-btn">Log in</button>
 </form>
 </div>
</div>
<div class="steps" id="step-indicator">
 <div class="step-item active" id="si-1"><div class="step-num">1</div> Upload</div>
 <div class="step-sep">›</div>
 <div class="step-item" id="si-2"><div class="step-num">2</div> Processing</div>
 <div class="step-sep">›</div>
 <div class="step-item" id="si-3"><div class="step-num">3</div> Configure</div>
 <div class="step-sep">›</div>
 <div class="step-item" id="si-4"><div class="step-num">4</div> Generating</div>
 <div class="step-sep">›</div>
 <div class="step-item" id="si-5"><div class="step-num">5</div> Results</div>
</div>
<main>
<!-- STEP 1: UPLOAD -->
<section id="step-upload">
 <div class="card">
 <div class="card-head">
 <div>
 <h2>📄 Upload Reference Documents</h2>
 <p>Upload one file, many files at once, or ZIP archives of .docx / .pdf — all stored in the database per file. Label the <strong>RICS survey tier</strong> so the AI only pulls matching reference reports from your library (mixed Level 1 / 2 / 3 uploads).</p>
 </div>
 </div>
 <div class="card-body">
 <div class="upload-zone" id="upload-zone">
 <span class="icon">☁️</span>
 <h3>Drag &amp; drop files or folders of documents here</h3>
 <p>or click to browse — multi-select supported</p>
 <p style="margin-top:.5rem;font-size:.78rem;color:var(--border)">Accepted: .docx · .pdf · .zip (archives are expanded). Per-file and ZIP size limits are enforced on the server. Very large libraries: repeat uploads or split across several ZIPs / batches.</p>
 <div class="file-name hidden" id="file-display">
 <span>📎</span> <span id="file-name-text"></span>
 <span id="file-size-text" style="color:var(--muted);font-weight:400"></span>
 </div>
 </div>
 <input type="file" id="file-input" accept=".docx,.pdf,.zip" multiple />
 <div class="form-group">
 <label for="tenant-input">Tenant / User ID</label>
 <input type="text" id="tenant-input" placeholder="e.g. my_company — leave blank to auto-generate" />
 <div class="form-hint">All your documents and reports are isolated under this ID</div>
 </div>
 <div class="form-group">
 <label for="survey-level-input">RICS survey level for these uploads</label>
 <select id="survey-level-input" style="width:100%;max-width:420px;padding:.45rem .6rem;border-radius:6px;border:1px solid var(--border);font-size:.9rem;">
 <option value="" selected>Not set — confirm after upload (recommended)</option>
 <option value="1">Level 1 — Condition Report</option>
 <option value="2">Level 2 — HomeBuyer / intermediate</option>
 <option value="3">Level 3 — Building Survey</option>
 </select>
 <div class="form-hint">If you pick a tier here, it applies to <strong>every</strong> file in the batch. If you leave it unset, the app suggests a tier per file from your local exemplar folders, then you confirm before the report is created. Per-file changes: <code>PATCH /documents/{id}/survey-level</code> or <code>POST /documents/survey-level/apply</code>.</div>
 </div>
 <div id="upload-alert" class="hidden"></div>
 <div style="display:flex;justify-content:flex-end;margin-top:1.2rem">
 <button type="button" class="btn btn-primary" id="btn-upload" disabled>⬆️ Upload &amp; Analyse</button>
 </div>
 </div>
 </div>
</section>
<!-- STEP 2: PROCESSING -->
<section id="step-processing">
 <div class="card">
 <div class="card-body processing-card">
 <div class="spinner" id="proc-spinner"></div>
 <h3 id="proc-title">Uploading document…</h3>
 <p id="proc-detail">Please wait while we parse and index your document</p>
 <div id="proc-pill" class="status-pill pill-pending">⏳ Pending</div>
 </div>
 </div>
</section>
<!-- STEP 3: CONFIGURE -->
<section id="step-configure">
 <div class="card">
 <div class="card-head">
 <div>
 <h2>🔧 Configure Your Report Sections</h2>
 <p>Select an AI mode for each section: Generate, Proofread, or Enhance Technical Depth</p>
 </div>
 </div>
 <div class="card-body">
<div class="doc-summary" id="doc-summary">
 <div class="doc-icon">📁</div>
 <div>
 <strong id="doc-fname">document.docx</strong>
 <span id="doc-stats">Ready — 0 chunks indexed</span>
 </div>
 </div>
<!-- Global Notes Upload Panel -->
 <div class="notes-upload-panel">
 <div class="notes-upload-title">🤖 Auto-Fill All Sections from Your Notes</div>
 <div class="notes-upload-row">
 <div class="notes-upload-desc">
 Upload your raw inspection notes (<b>.docx</b>, <b>.pdf</b>, or <b>.txt</b>) and the AI will read the whole document,
 intelligently route each observation to the right RICS section, and pre-fill every bullets box — ready to generate.
 </div>
 <button type="button" class="notes-upload-btn" id="btn-notes-upload" onclick="triggerGlobalNotesUpload()">
 📋 Upload Field Notes
 </button>
 <input type="file" id="global-notes-input" accept=".docx,.pdf,.txt" style="display:none" onchange="handleGlobalNotes(event)" />
 </div>
 <div class="notes-upload-status" id="global-notes-status"></div>
 </div>
<!-- AI Capabilities Info -->
 <div class="alert alert-info" style="margin-bottom:1rem">
 ✨ <span><b>Just write your notes — the AI does the rest.</b>
 Enter rough, abbreviated, or incomplete inspection notes per section (or use the button above to auto-fill from a document).
 The AI automatically interprets shorthand (e.g. "semi det nw3 1965ish"),
 expands vague observations ("roof bad needs work") into professional RICS language,
 and matches your personal writing style throughout.
 <b>📝 Proofread</b> refines generated text. <b>⚙️ Enhance</b> adds technical depth.</span>
 </div>
<!-- Style Profile Panel (shown after first successful generate) -->
 <div id="style-profile-panel" class="hidden" style="margin-bottom:1.2rem">
 <div style="background:linear-gradient(135deg,#1b3a5c,#274d7a);border-radius:9px;padding:1.1rem 1.3rem;color:#fff;">
 <div style="display:flex;align-items:center;gap:.6rem;margin-bottom:.8rem">
 <span style="font-size:1.2rem">🎨</span>
 <div>
 <div style="font-weight:700;font-size:.95rem">Detected Writing Style Profile</div>
 <div style="font-size:.78rem;opacity:.7">Analysed from your uploaded documents — AI will match this voice</div>
 </div>
 </div>
 <div class="style-profile-grid" id="style-chips"></div>
 <div class="style-summary-box" id="style-summary" style="background:rgba(255,255,255,.12);border-color:var(--gold);color:#fff"></div>
 <div class="style-phrases" id="style-phrases"></div>
 </div>
 </div>
<!-- Report composition depth -->
 <div class="ai-interference-panel">
 <div class="ai-interference-title">Report composition depth</div>
 <div style="display:flex;align-items:center;gap:.7rem;margin:.55rem 0 .15rem;flex-wrap:wrap">
 <div style="font-weight:800;color:var(--navy)">Retrieval level</div>
 <select id="retrieval-level" style="padding:.38rem .55rem;border-radius:8px;border:1.5px solid var(--border);background:var(--card);color:var(--text)">
 <option value="document">Document level (whole PDF intent)</option>
 <option value="section">Section level (page / part scope)</option>
 <option value="paragraph" selected>Paragraph level (fine chunks)</option>
 </select>
 <div style="font-size:.75rem;color:var(--muted)">Strict: generation uses only this level’s retrieved context</div>
 </div>
 <div style="display:flex;align-items:center;gap:.55rem;margin:.35rem 0 .2rem;flex-wrap:wrap">
 <label style="display:flex;align-items:center;gap:.45rem;font-size:.82rem;color:var(--muted);user-select:none;cursor:pointer">
 <input id="use-cache-toggle" type="checkbox" checked />
 Use cache (reuse identical section generations)
 </label>
 <span style="font-size:.74rem;color:var(--muted)">
 Turn off to force a fresh run even if the same section was generated before with the same notes/settings.
 </span>
 </div>
 <label style="display:flex;align-items:flex-start;gap:.45rem;font-size:.82rem;color:var(--muted);user-select:none;cursor:pointer;margin:.35rem 0 .25rem">
 <input id="strict-uploads-toggle" type="checkbox" style="margin-top:.2rem" />
 <span><strong>Strict uploads only</strong> — no firm knowledge base, no standard-paragraph master, minimal tenant style reuse. Use when you want hard isolation to this report’s files only.</span>
 </label>
 <div class="interference-pill-row" role="radiogroup" aria-label="Report composition depth">
 <button type="button" class="interference-pill" data-level="minimum" aria-pressed="false" title="Baseline preservation — facts woven in place on past report text.">
 <span class="pill-icon" aria-hidden="true">📋</span>
 <span class="pill-label">Baseline preservation</span>
 <span class="pill-tagline">In-place fact updates only; past report scaffolding retained.</span>
 </button>
 <button type="button" class="interference-pill" data-level="medium" aria-pressed="false" title="Technical edit — proofread in-place updates on the baseline.">
 <span class="pill-icon" aria-hidden="true">✏️</span>
 <span class="pill-label">Technical edit</span>
 <span class="pill-tagline">Proofread in-place updates; every claim traceable to your notes.</span>
 </button>
 <button type="button" class="interference-pill active" data-level="maximum" aria-pressed="true" title="Full narrative edit — long-form baseline retained (Level 3 default).">
 <span class="pill-icon" aria-hidden="true">📚</span>
 <span class="pill-label">Full narrative edit</span>
 <span class="pill-tagline">Long-form past report baseline; formal RICS Home Survey prose.</span>
 </button>
 </div>
 <div class="interference-detail" id="interference-detail-desc"></div>
 </div>
<p class="sections-label">RICS Level 3 Report Sections</p>
 <div id="section-cards"></div>
 <div id="configure-alert" class="hidden"></div>
 <div class="generate-bar">
 <div class="count"><strong id="gen-count">0</strong> section(s) queued for AI</div>
 <button type="button" class="btn btn-gold" id="btn-generate" disabled>✨ Run AI on Report</button>
 </div>
 </div>
 </div>
</section>
<!-- STEP 4: GENERATING -->
<section id="step-generating">
 <div class="card">
 <div class="card-head">
 <div>
 <h2>✨ AI Processing Report Sections</h2>
 <p id="gen-step-subtitle">Interpreting your notes → expanding observations → retrieving evidence → generating content in your writing style</p>
 </div>
 </div>
 <div class="card-body">
 <div class="progress-bar hidden" id="gen-overall-progress" style="margin-bottom:1rem">
 <div class="progress-fill pf-generate" id="gen-overall-fill" style="width:0%"></div>
 </div>
 <div class="gen-section-list" id="gen-list"></div>
 </div>
 </div>
</section>
<!-- STEP 5: RESULTS -->
<section id="step-results">
 <div class="results-header">
 <div>
 <h2 style="font-size:1.2rem;color:var(--navy)">📝 Generated Report</h2>
 <p style="font-size:.82rem;color:var(--muted)">
 Items marked <span class="verify-tag">[VERIFY]</span> require human confirmation.
 Use the action buttons to apply additional AI modes to any section.
 </p>
 </div>
 <div style="display:flex;gap:.5rem;flex-wrap:wrap">
 <button class="btn btn-teal btn-sm" id="btn-download-docx" title="Download full report as a professional RICS-formatted Word document">⬇ Download DOCX</button>
 <button class="btn btn-outline btn-sm" id="btn-download">⬇ Download .txt</button>
 <button class="btn btn-primary btn-sm" id="btn-restart">↩ New Document</button>
 </div>
 </div>
 <div id="ai-transparency-panel" class="ai-transparency-panel hidden" aria-live="polite">
 <div class="ai-transparency-head">
 <strong>Composition depth (this report)</strong>
 <div id="interference-aggregate-chips" style="display:flex;flex-wrap:wrap;gap:.45rem;align-items:center"></div>
 </div>
 <details class="ai-transparency-details" id="ai-transparency-details">
 <summary>How this summary is built</summary>
 <p id="ai-transparency-summary">Counts reflect the <strong>composition depth</strong> stored per section when it was generated (baseline preservation, technical edit, or full narrative edit). Retrieval uses passages from <em>your uploaded past reports</em> under your tenant only.</p>
 </details>
 </div>
 <div id="results-grid"></div>
</section>
</main>
<div id="app-toast" class="app-toast hidden" role="status" aria-live="polite"></div>
<div id="similar-modal" class="similar-modal hidden" role="dialog" aria-modal="true" aria-labelledby="similar-modal-title">
 <div class="similar-modal-backdrop" onclick="closeSimilarityModal()"></div>
 <div class="similar-modal-panel">
 <div class="similar-modal-head">
 <h3 id="similar-modal-title">Similar content in your workspace</h3>
 <button type="button" class="similar-modal-close" onclick="closeSimilarityModal()" aria-label="Close">×</button>
 </div>
 <div id="similar-modal-body" class="similar-modal-body"></div>
 </div>
</div>
<!-- ── RAG Document Manager modal ────────────────────────────────────────── -->
<div id="doc-manager-modal" class="similar-modal hidden" role="dialog" aria-modal="true" aria-labelledby="doc-manager-title">
 <div class="similar-modal-backdrop" onclick="closeDocManager()"></div>
 <div class="similar-modal-panel" style="width:min(900px,100%)">
 <div class="similar-modal-head">
 <h3 id="doc-manager-title">🗂️ RAG Document Manager</h3>
 <button type="button" class="similar-modal-close" onclick="closeDocManager()" aria-label="Close">×</button>
 </div>
 <div class="similar-modal-body">
 <p class="similar-intro" id="doc-manager-intro">
 All documents indexed under your tenant. Deleting removes the file, its database record, and every
 vector embedding for that document from the search index. This cannot be undone.
 </p>
 <div class="docmgr-toolbar">
 <span id="docmgr-count" class="docmgr-count"></span>
 <button type="button" class="btn-similar" id="docmgr-refresh" onclick="loadDocManagerList()">↻ Refresh</button>
 <button type="button" class="btn-similar" id="docmgr-reingest" onclick="reingestAllDocuments()" title="Re-process every stored reference file (library + reference_uploads/) through the latest parser and chunker">⟳ Re-ingest library</button>
 </div>
 <div id="doc-manager-list"></div>
 </div>
 </div>
</div>
<!-- ── Delete confirmation modal ─────────────────────────────────────────── -->
<div id="doc-delete-modal" class="similar-modal hidden" role="alertdialog" aria-modal="true" aria-labelledby="doc-delete-title" style="z-index:9500">
 <div class="similar-modal-backdrop" onclick="cancelDocDelete()"></div>
 <div class="similar-modal-panel" style="max-width:480px">
 <div class="similar-modal-head" style="background:#fdecea;border-bottom:2px solid var(--danger)">
 <h3 id="doc-delete-title" style="color:var(--danger)">Delete document?</h3>
 <button type="button" class="similar-modal-close" onclick="cancelDocDelete()" aria-label="Close">×</button>
 </div>
 <div class="similar-modal-body" id="doc-delete-body" style="padding:1.2rem"></div>
 </div>
</div>
<!-- ── Tier mismatch warning modal ──────────────────────────────────────── -->
<div id="tier-mismatch-modal" class="similar-modal hidden" role="alertdialog" aria-modal="true" aria-labelledby="tier-mismatch-title">
 <div class="similar-modal-backdrop"></div>
 <div class="similar-modal-panel" style="max-width:520px">
 <div id="tier-mismatch-head" class="similar-modal-head" style="background:#fff3cd;border-bottom:2px solid #e6a817">
 <h3 id="tier-mismatch-title" style="color:#856404;margin:0;display:flex;align-items:center;gap:.5rem">
 <span style="font-size:1.3rem">⚠️</span> <span id="tier-mismatch-title-text">Survey Tier Mismatch Detected</span>
 </h3>
 </div>
 <div id="tier-mismatch-body" class="similar-modal-body" style="padding:1.2rem"></div>
 <div id="tier-mismatch-footer" style="padding:.8rem 1.2rem 1.2rem;display:flex;gap:.6rem;justify-content:flex-end;flex-wrap:wrap;border-top:2px solid #e6a817;background:#fff8e1">
 <button type="button" class="btn btn-outline" id="tier-mismatch-cancel-btn">← Go back &amp; fix tier</button>
 <button type="button" class="btn" id="tier-mismatch-proceed-btn"
 style="background:#dc3545;color:#fff;border-color:#dc3545">
 Proceed with wrong tier anyway
 </button>
 </div>
 </div>
</div>
<div id="survey-tier-modal" class="similar-modal hidden" role="dialog" aria-modal="true" aria-labelledby="survey-tier-modal-title">
 <div class="similar-modal-backdrop" onclick="cancelSurveyTierModal()"></div>
 <div class="similar-modal-panel">
 <div class="similar-modal-head">
 <h3 id="survey-tier-modal-title">Confirm RICS survey tier(s)</h3>
 <button type="button" class="similar-modal-close" onclick="cancelSurveyTierModal()" aria-label="Close">×</button>
 </div>
 <div id="survey-tier-modal-body" class="similar-modal-body"></div>
 <div style="padding:0 1.2rem 1.2rem;display:flex;gap:.6rem;justify-content:flex-end;flex-wrap:wrap;border-top:1px solid var(--border);background:var(--card)">
 <button type="button" class="btn btn-outline" onclick="cancelSurveyTierModal()">← Back to upload</button>
 <button type="button" class="btn btn-primary" id="survey-tier-confirm-btn">Confirm &amp; continue</button>
 </div>
 </div>
</div>
<script>
/* ════════════════════════════════════════════════════════════════════════
 Report Genius AI — Multi-Mode Frontend
 Modes: generate | proofread | enhance
 ════════════════════════════════════════════════════════════════════════ */
const state = {
 tenantId: null,
 token: null,
 docId: null,
 docIds: [], // all accepted document UUIDs from last batch upload
 sessionDocIds: [], // every doc uploaded during THIS browser session (for "current" vs "previous" tagging)
 reportId: null,
 surveyLevel: 3,
 file: null,
 files: [], // File[] selected for upload
 sections: {}, // { code: { action:'ai'|'keep', aiTask:'generate'|'proofread'|'enhance', bullets:'' } }
 results: {}, // { code: SectionPayload }
 styleProfile: null,
 interferenceLevel: 'maximum',
};
const AI_MODE_DESCRIPTIONS = {
 generate: 'Personalised content generation: your raw notes are automatically interpreted, expanded, and transformed into polished RICS report prose — matching your writing style. Works even with rough, abbreviated, or incomplete notes.',
 proofread: 'Proofreading: reviews the generated text for grammar, clarity, and style consistency with your detected writing voice.',
 enhance: 'Technical enhancement: expands the content with deeper technical insights using additional passages retrieved from your own uploaded documents (same tenant only).',
};
/* ── Default: RICS Level 3 Building Survey (replaced after upload from GET /templates/catalog) */
const STATIC_L3_SECTIONS = [
 { code:'A1', group:'A', title:'Surveyor\'s details', hint:'surveyor name · RICS number · qualifications · company · contact' },
 { code:'A2', group:'A', title:'Date of inspection', hint:'inspection date · time on site' },
 { code:'A3', group:'A', title:'Related party disclosure', hint:'related party · conflict of interest' },
 { code:'A4', group:'A', title:'Weather conditions', hint:'weather · dry · wet · overcast' },
 { code:'A5', group:'A', title:'Status of the property at the time of inspection', hint:'occupied · vacant · furnished · access limitations' },
 { code:'B1', group:'B', title:'Summary of condition ratings', hint:'condition ratings summary · Cat 1 · Cat 2 · Cat 3' },
 { code:'B2', group:'B', title:'Overall opinion', hint:'overall opinion · key findings' },
 { code:'B3', group:'B', title:'Further investigations', hint:'further investigations · specialist reports' },
 { code:'C1', group:'C', title:'Type and construction', hint:'property type · construction · detached · cavity · timber frame' },
 { code:'C2', group:'C', title:'Approximate year of construction', hint:'year built · approximate age · period' },
 { code:'C3', group:'C', title:'Accommodation', hint:'accommodation · bedrooms · bathrooms · storeys · room matrix' },
 { code:'C4', group:'C', title:'Energy efficiency', hint:'EPC · energy efficiency · double glazing' },
 { code:'C5', group:'C', title:'Location and facilities', hint:'location · facilities · flood · radon · noise' },
 { code:'D1', group:'D', title:'Chimney stacks', hint:'chimney stacks · pots · flaunching · flashings · lean · condition rating' },
 { code:'D2', group:'D', title:'Roof coverings', hint:'roof covering · slate · tile · felt · slipped tiles · moss · condition rating' },
 { code:'D3', group:'D', title:'Rainwater pipes and gutters', hint:'gutters · downpipes · rainwater · hopper · leakage · condition rating' },
 { code:'D4', group:'D', title:'Main walls', hint:'main walls · cavity · render · DPC · cracking · condition rating' },
 { code:'D5', group:'D', title:'Windows', hint:'windows · glazing · FENSA · frames · condition rating' },
 { code:'D6', group:'D', title:'Outside doors (including patio doors)', hint:'outside doors · patio doors · entrance door · condition rating' },
 { code:'D7', group:'D', title:'Conservatory and porches', hint:'conservatory · porch · glazing · condition rating' },
 { code:'D8', group:'D', title:'Other joinery and finishes', hint:'fascias · soffits · external joinery · condition rating' },
 { code:'D9', group:'D', title:'Other', hint:'other outside elements · balconies · external stairs' },
 { code:'E1', group:'E', title:'Roof structure', hint:'roof structure · trusses · rafters · purlins · loft access · condition rating' },
 { code:'E2', group:'E', title:'Ceilings', hint:'ceilings · plaster · artex · cracking · condition rating' },
 { code:'E3', group:'E', title:'Walls and partitions', hint:'walls · partitions · damp · cracking · condition rating' },
 { code:'E4', group:'E', title:'Floors', hint:'floors · suspended · solid · springy · condition rating' },
 { code:'E5', group:'E', title:'Fireplaces, chimney breasts and flues', hint:'fireplaces · chimney breasts · flues · hearth · condition rating' },
 { code:'E6', group:'E', title:'Built-in fittings', hint:'built-in kitchen · fitted wardrobes · cupboards · condition rating' },
 { code:'E7', group:'E', title:'Woodwork', hint:'staircase · skirting · architrave · internal doors · condition rating' },
 { code:'E8', group:'E', title:'Bathroom fittings', hint:'bathroom fittings · sanitaryware · shower · WC · condition rating' },
 { code:'E9', group:'E', title:'Other', hint:'cellar · basement · other inside · condition rating' },
 { code:'F1', group:'F', title:'Electricity', hint:'electricity · consumer unit · wiring · EICR · condition rating' },
 { code:'F2', group:'F', title:'Gas and Oil', hint:'gas · oil · meter · pipework · Gas Safe · condition rating' },
 { code:'F3', group:'F', title:'Water', hint:'water supply · stopcock · lead pipes · condition rating' },
 { code:'F4', group:'F', title:'Heating', hint:'heating · boiler · radiators · controls · condition rating' },
 { code:'F5', group:'F', title:'Water heating', hint:'water heating · cylinder · combi · immersion · condition rating' },
 { code:'F6', group:'F', title:'Drainage', hint:'drainage · manholes · sewers · condition rating' },
 { code:'F7', group:'F', title:'Common services', hint:'common services · shared utilities · flats only' },
 { code:'G1', group:'G', title:'Garage', hint:'garage · car port · door · condition rating' },
 { code:'G2', group:'G', title:'Permanent outbuildings', hint:'outbuildings · shed · workshop · condition rating' },
 { code:'G3', group:'G', title:'Other', hint:'boundaries · garden · driveway · shared areas · condition rating' },
 { code:'H1', group:'H', title:'Regulation', hint:'regulations · planning · listed building · conservation area' },
 { code:'H2', group:'H', title:'Guarantees', hint:'guarantees · NHBC · FENSA · warranties' },
 { code:'H3', group:'H', title:'Other matters', hint:'tenure · lease · easements · other legal matters' },
 { code:'I1', group:'I', title:'Risks to the building', hint:'structural movement · dampness · timber defects · building risks' },
 { code:'I2', group:'I', title:'Risks to the grounds', hint:'flood · radon · mining · knotweed · ground risks' },
 { code:'I3', group:'I', title:'Risks to people', hint:'asbestos · fire safety · safety glass · people risks' },
 { code:'I4', group:'I', title:'Other risks or hazards', hint:'other risks · contamination · hazards' },
 { code:'J1', group:'J', title:'Insulation', hint:'insulation · loft · cavity · floor insulation' },
 { code:'J2', group:'J', title:'Heating', hint:'heating efficiency · boiler · heat pump' },
 { code:'J3', group:'J', title:'Lighting', hint:'lighting · LED · natural light' },
 { code:'J4', group:'J', title:'Ventilation', hint:'ventilation · trickle vents · extract fans' },
 { code:'J5', group:'J', title:'General', hint:'general energy · solar · EPC improvements' },
 { code:'K1', group:'K', title:'Surveyor\'s declaration details', hint:'surveyor declaration · signature · RICS · qualifications' },
 { code:'L1', group:'L', title:'Advice on getting quotes and next steps', hint:'quotations · next steps · recommended actions' },
 { code:'M1', group:'M', title:'Terms and Service Description', hint:'terms of engagement · scope · fee · complaints' },
 { code:'N1', group:'N', title:'Diagram reference', hint:'typical house diagram · illustration reference' },
];
let RICS_SECTIONS = STATIC_L3_SECTIONS.slice();
let PHOTO_POLICY = {}; // section_code -> { policy, reason }
let PHOTO_LIMITS = { max_photos_per_section: 5, max_photos_for_ai: 2 };
async function loadTemplateCatalog(surveyLevel) {
 const sl = (Number.isFinite(surveyLevel) && surveyLevel >= 1 && surveyLevel <= 3)
 ? Math.floor(Number(surveyLevel)) : 3;
 const cat = await apiFetch('GET', `/templates/catalog?survey_level=${encodeURIComponent(sl)}`, null);
 RICS_SECTIONS = (cat.sections || []).map(s => ({
 code: s.code,
 group: s.group,
 title: s.title,
 hint: s.hint || '',
 }));
 RICS_GROUP_LABELS = { ...(cat.group_labels || {}) };
 state.surveyLevel = cat.survey_level;
}
async function loadPhotoPolicy(reportId) {
 if (!reportId) return;
 const pol = await apiFetch('GET', `/reports/${encodeURIComponent(reportId)}/photo-policy`, null);
 PHOTO_POLICY = {};
 (pol.sections || []).forEach(s => { PHOTO_POLICY[s.code] = { policy: s.policy, reason: s.reason }; });
 if (pol.photo_limits) {
 PHOTO_LIMITS = {
 max_photos_per_section: pol.photo_limits.max_photos_per_section ?? 5,
 max_photos_for_ai: pol.photo_limits.max_photos_for_ai ?? 2,
 };
 }
}
const $ = id => document.getElementById(id);
function sleep(ms) { return new Promise(r => setTimeout(r, ms)); }
function showStep(n) {
 ['step-upload','step-processing','step-configure','step-generating','step-results']
 .forEach((id, i) => $(id).style.display = (i === n-1) ? 'block' : 'none');
 for (let i = 1; i <= 5; i++) {
 const el = $(`si-${i}`);
 el.classList.toggle('active', i === n);
 el.classList.toggle('done', i < n);
 }
 window.scrollTo({ top: 0, behavior: 'smooth' });
}
function showAlert(id, type, msg) {
 const el = $(id);
 el.className = `alert alert-${type}`;
 el.innerHTML = msg;
 el.classList.remove('hidden');
}
function hideAlert(id) { $(id).classList.add('hidden'); }
function fmtSize(b) {
 if (b < 1024) return b + ' B';
 if (b < 1048576) return (b/1024).toFixed(1) + ' KB';
 return (b/1048576).toFixed(1) + ' MB';
}
// ── API base URL ─────────────────────────────────────────────────────────────
// FastAPI serves this HTML file directly, so the browser's current origin IS
// the API server — same-origin requests work on localhost:8000, HF Spaces
// (https://...hf.space), and any other host without configuration.
// Override via ?api=https://... query param or localStorage key "API_BASE"
// only when running the frontend from a separate dev server (e.g. :5173).
const API_BASE_DEFAULT = location.origin;
function getApiBase() {
 const qp = new URLSearchParams(location.search);
 const fromQuery = (qp.get('api') || '').trim();
 if (fromQuery) return fromQuery.replace(/\/+$/, '');
 const fromStorage = (localStorage.getItem('API_BASE') || '').trim();
 if (fromStorage) return fromStorage.replace(/\/+$/, '');
 return API_BASE_DEFAULT;
}
const API_BASE = getApiBase();
function apiUrl(path) {
 return new URL(path, API_BASE).toString();
}
/** Auth headers for every API call (Bearer required in production). */
function buildAuthHeaders(extra = {}) {
 const h = { ...extra };
 if (state.token) h['Authorization'] = `Bearer ${state.token}`;
 if (state.tenantId) h['X-Tenant-ID'] = state.tenantId; // dev fallback when DEV_MODE=true
 return h;
}
async function apiFetch(method, path, body, headers = {}, options = {}) {
 const baseHeaders = buildAuthHeaders(headers);
 const opts = { method, headers: baseHeaders };
 if (body instanceof FormData) { opts.body = body; }
 else if (body) { opts.headers['Content-Type'] = 'application/json'; opts.body = JSON.stringify(body); }
 // Optional AbortSignal — used by _saveSectionEdit to cancel an in-flight save
 // when the user resumes typing before the previous request resolves. Other
 // callers can ignore this; behaviour is unchanged when signal is omitted.
 if (options && options.signal) opts.signal = options.signal;
 const res = await fetch(apiUrl(path), opts);
 if (res.status === 401 && !(options && options.noAuthRedirect)) {
 handleAuthExpired();
 throw new Error('Your session expired. Please log in again.');
 }
 if (res.status === 204) {
 if (!res.ok) throw new Error(`HTTP ${res.status}`);
 return null;
 }
 const data = await res.json().catch(() => ({}));
 if (!res.ok) {
 const errId = data && data.error_id ? ` (error_id: ${data.error_id})` : '';
 const detail = (data && data.detail != null) ? data.detail : null;
 let msg = `HTTP ${res.status}`;
 if (typeof detail === 'string' && detail.trim()) msg = detail.trim();
 else if (detail && typeof detail === 'object') {
 // FastAPI can return dict details (we use this for tier mismatch guardrails).
 if (typeof detail.message === 'string' && detail.message.trim()) {
 msg = detail.message.trim();
 if (typeof detail.rationale === 'string' && detail.rationale.trim()) {
 msg += `\n\nWhy: ${detail.rationale.trim()}`;
 }
 if (typeof detail.hint === 'string' && detail.hint.trim()) {
 msg += `\n\nNext: ${detail.hint.trim()}`;
 }
 } else {
 try { msg = JSON.stringify(detail, null, 2); } catch { /* ignore */ }
 }
 }
 const err = new Error(msg + errId);
 // Attach raw response for callers that want structured handling.
 err.data = data; // eslint-disable-line no-param-reassign
 throw err;
 }
 return data;
}
/* ── Authentication (must run before protected API calls) ─────────────── */
const AUTH_KEY = 'rics_auth';
let _authMode = 'login';
function setAuthMode(mode) {
 _authMode = mode;
 $('auth-tab-login').classList.toggle('active', mode === 'login');
 $('auth-tab-register').classList.toggle('active', mode === 'register');
 $('auth-submit-btn').textContent = mode === 'register' ? 'Create account & sign in' : 'Log in';
 $('auth-pass').setAttribute('autocomplete', mode === 'register' ? 'new-password' : 'current-password');
 $('auth-pass-hint').textContent = mode === 'register'
 ? 'At least 8 characters. There is no recovery — store it safely.'
 : 'Enter the passphrase you registered with this Tenant/User ID.';
 hideAlert('auth-alert');
}
function showAuthOverlay() {
 const el = $('auth-overlay');
 if (el) {
 el.classList.remove('hidden-gate');
 el.setAttribute('aria-hidden', 'false');
 }
 document.body.classList.add('auth-gate');
 setTimeout(() => { const t = $('auth-tenant'); if (t) t.focus(); }, 50);
}
function hideAuthOverlay() {
 const el = $('auth-overlay');
 if (el) {
 el.classList.add('hidden-gate');
 el.setAttribute('aria-hidden', 'true');
 }
 document.body.classList.remove('auth-gate');
}
function _persistAuth(sess) {
 localStorage.setItem(AUTH_KEY, JSON.stringify(sess));
}
function applyAuthSession(sess) {
 state.token = sess.access_token;
 state.tenantId = sess.tenant_id;
 _persistAuth(sess);
 $('tenant-badge').textContent = `🔑 ${sess.tenant_id}`;
 $('tenant-badge').classList.add('visible');
 $('btn-logout').style.display = '';
 const ti = $('tenant-input');
 if (ti) { ti.value = sess.tenant_id; ti.readOnly = true; ti.title = 'Logged in as this tenant'; }
 hideAuthOverlay();
}
async function submitAuth(event) {
 event.preventDefault();
 const tenant = $('auth-tenant').value.trim();
 const pass = $('auth-pass').value;
 if (!tenant || !pass) { showAlert('auth-alert', 'warn', 'Enter both a Tenant/User ID and a passphrase.'); return; }
 const btn = $('auth-submit-btn');
 btn.disabled = true;
 const original = btn.textContent;
 btn.textContent = _authMode === 'register' ? 'Creating account…' : 'Signing in…';
 try {
 const path = _authMode === 'register' ? '/auth/register' : '/auth/login';
 const res = await apiFetch('POST', path, { tenant_id: tenant, passphrase: pass }, {}, { noAuthRedirect: true });
 applyAuthSession(res);
 $('auth-pass').value = '';
 showToast(_authMode === 'register' ? 'Account created — welcome.' : 'Signed in.', 'ok');
 } catch (err) {
 let msg = err.message || 'Authentication failed.';
 if (err.data && Array.isArray(err.data.detail)) {
 msg = err.data.detail.map(d => d.msg || JSON.stringify(d)).join(' ');
 }
 showAlert('auth-alert', 'error', escapeHtml(msg));
 } finally {
 btn.disabled = false;
 btn.textContent = original;
 }
}
function logout() {
 localStorage.removeItem(AUTH_KEY);
 state.token = null;
 state.tenantId = null;
 $('btn-logout').style.display = 'none';
 $('tenant-badge').classList.remove('visible');
 if (typeof closeDocManager === 'function') closeDocManager();
 const ti = $('tenant-input');
 if (ti) { ti.readOnly = false; ti.value = ''; ti.title = ''; }
 showAuthOverlay();
 showToast('Signed out.', 'ok');
}
function handleAuthExpired() {
 localStorage.removeItem(AUTH_KEY);
 state.token = null;
 state.tenantId = null;
 $('btn-logout').style.display = 'none';
 $('tenant-badge').classList.remove('visible');
 const ti = $('tenant-input');
 if (ti) { ti.readOnly = false; ti.value = ''; ti.title = ''; }
 showAuthOverlay();
 showAlert('auth-alert', 'warn', 'Your session expired. Please log in again.');
}
async function bootstrapAuth() {
 setAuthMode('login');
 let sess = null;
 try { sess = JSON.parse(localStorage.getItem(AUTH_KEY) || 'null'); } catch { sess = null; }
 const stillValid = sess && sess.access_token && (!sess.expires_at || sess.expires_at * 1000 > Date.now() + 30000);
 if (!stillValid) { showAuthOverlay(); return; }
 // Restore UI immediately; verify token in the background (avoids blocking
 // the login gate on an extra round-trip every page load).
 applyAuthSession(sess);
 apiFetch('GET', '/auth/me', null, {}, { noAuthRedirect: true })
 .then(me => {
 if (me && me.tenant_id) applyAuthSession({ ...sess, tenant_id: me.tenant_id });
 })
 .catch(() => handleAuthExpired());
}
bootstrapAuth();
/* ── Tier mismatch modal ─────────────────────────────────────────────── */
let _mismatchResolve = null;
let _mismatchReject = null;
function _openTierMismatchModal(errData) {
 return new Promise((resolve, reject) => {
 _mismatchResolve = resolve;
 _mismatchReject = reject;
 const d = (errData && errData.detail) ? errData.detail : {};
 const predicted = d.predicted_survey_level || '?';
 const requested = d.requested_survey_level || '?';
 const confVal = d.confidence != null ? d.confidence : null;
 const confPct = confVal != null ? Math.round(confVal * 100) : null;
 const confStr = confPct != null ? `${confPct}%` : 'unknown';
 const rationale = d.rationale || '';
 const isLowConf = confVal != null && confVal < 0.45;
 const levelName = { 1: 'Level 1 — Condition Report', 2: 'Level 2 — HomeBuyer', 3: 'Level 3 — Building Survey' };
 // Tone depends on confidence: low-confidence = advisory note, high-confidence = strong warning.
 const headerNote = isLowConf
 ? `The classifier has a <strong>weak signal</strong> (${confStr} confidence) suggesting the document
 may lean towards ${levelName[predicted] || `Level ${predicted}`}, but it is <strong>not certain</strong>.
 If you know the correct tier, you can proceed safely.`
 : `The system analysed the uploaded document and found that its content
 <strong>does not match the survey tier you selected</strong> (${confStr} confidence).
 Generating with the wrong tier will produce an incorrectly structured report.`;
 const actionNote = isLowConf
 ? `<p style="margin:0;font-size:.82rem;background:#e8f4fd;border:1px solid #7bc8f6;border-radius:6px;padding:.55rem .75rem">
 <strong>Low confidence:</strong> the classifier is uncertain. If you are confident this is
 <strong>${levelName[requested] || `Level ${requested}`}</strong>, click <strong>Proceed</strong>.
 If you think it may actually be <strong>${levelName[predicted] || `Level ${predicted}`}</strong>,
 go back and select that tier instead.
 </p>`
 : `<p style="margin:0;font-size:.82rem;color:#721c24;background:#fff3cd;border:1px solid #e6a817;border-radius:6px;padding:.55rem .75rem">
 <strong>Recommended action:</strong> click <strong>← Go back &amp; fix tier</strong> and re-upload
 selecting <strong>${levelName[predicted] || `Level ${predicted}`}</strong> from the dropdown.
 </p>`;
 $('tier-mismatch-body').innerHTML = `
 <p style="margin:0 0 .9rem;font-size:.92rem">${headerNote}</p>
 <div style="display:grid;grid-template-columns:1fr 1fr;gap:.6rem;margin-bottom:.9rem">
 <div style="border:2px solid #28a745;border-radius:8px;padding:.65rem .8rem;background:#f0fff4">
 <div style="font-size:.72rem;color:#155724;font-weight:700;text-transform:uppercase;letter-spacing:.04em">Document detected as</div>
 <div style="font-size:.95rem;font-weight:700;color:#155724;margin-top:.25rem">${levelName[predicted] || `Level ${predicted}`}</div>
 <div style="font-size:.75rem;color:#155724;margin-top:.15rem">Confidence: ${confStr}${isLowConf ? ' ⚠ low' : ''}</div>
 </div>
 <div style="border:2px solid #dc3545;border-radius:8px;padding:.65rem .8rem;background:#fff5f5">
 <div style="font-size:.72rem;color:#721c24;font-weight:700;text-transform:uppercase;letter-spacing:.04em">Tier you selected</div>
 <div style="font-size:.95rem;font-weight:700;color:#721c24;margin-top:.25rem">${levelName[requested] || `Level ${requested}`}</div>
 <div style="font-size:.75rem;color:#721c24;margin-top:.15rem">⚠ Does not match classifier</div>
 </div>
 </div>
 ${rationale ? `<p style="font-size:.8rem;color:var(--muted);border-left:3px solid var(--border);padding-left:.7rem;margin:0 0 .8rem"><em>${escapeHtml(rationale)}</em></p>` : ''}
 ${actionNote}`;
 // Adjust header and footer colour based on confidence level.
 if (isLowConf) {
 $('tier-mismatch-head').style.background = '#e8f4fd';
 $('tier-mismatch-head').style.borderBottomColor = '#7bc8f6';
 $('tier-mismatch-title').style.color = '#0c5460';
 $('tier-mismatch-title-text').textContent = 'Survey Tier Uncertainty';
 $('tier-mismatch-footer').style.background = '#f0f8ff';
 $('tier-mismatch-footer').style.borderTopColor = '#7bc8f6';
 $('tier-mismatch-proceed-btn').style.background = '#0069d9';
 $('tier-mismatch-proceed-btn').style.borderColor = '#0062cc';
 $('tier-mismatch-proceed-btn').textContent = 'Yes, my tier is correct — proceed';
 } else {
 $('tier-mismatch-head').style.background = '#fff3cd';
 $('tier-mismatch-head').style.borderBottomColor = '#e6a817';
 $('tier-mismatch-title').style.color = '#856404';
 $('tier-mismatch-title-text').textContent = 'Survey Tier Mismatch Detected';
 $('tier-mismatch-footer').style.background = '#fff8e1';
 $('tier-mismatch-footer').style.borderTopColor = '#e6a817';
 $('tier-mismatch-proceed-btn').style.background = '#dc3545';
 $('tier-mismatch-proceed-btn').style.borderColor = '#dc3545';
 $('tier-mismatch-proceed-btn').textContent = 'Proceed with wrong tier anyway';
 }
 $('tier-mismatch-modal').classList.remove('hidden');
 });
}
$('tier-mismatch-cancel-btn').onclick = () => {
 $('tier-mismatch-modal').classList.add('hidden');
 if (_mismatchReject) { _mismatchReject(new Error('cancelled')); _mismatchReject = null; _mismatchResolve = null; }
};
$('tier-mismatch-proceed-btn').onclick = () => {
 $('tier-mismatch-modal').classList.add('hidden');
 if (_mismatchResolve) { _mismatchResolve(true); _mismatchResolve = null; _mismatchReject = null; }
};
let _tierModalResolve = null;
let _tierModalReject = null;
function cancelSurveyTierModal() {
 const m = $('survey-tier-modal');
 if (!m.classList.contains('hidden')) {
 m.classList.add('hidden');
 if (_tierModalReject) {
 const rj = _tierModalReject;
 _tierModalReject = null;
 _tierModalResolve = null;
 rj(new Error('cancelled'));
 }
 }
}
function _primaryTierFromModalBody(body, primaryDocId) {
 const rows = body.querySelectorAll('.tier-row');
 for (const row of rows) {
 if (row.getAttribute('data-doc-id') === primaryDocId) {
 const sel = row.querySelector('.tier-row-select');
 if (sel) return parseInt(sel.value, 10);
 }
 }
 const first = body.querySelector('.tier-row-select');
 return first ? parseInt(first.value, 10) : 3;
}
function openSurveyTierConfirmModal(cl, primaryDocId) {
 return new Promise((resolve, reject) => {
 _tierModalResolve = resolve;
 _tierModalReject = reject;
 const body = $('survey-tier-modal-body');
 let html = '<p style="font-size:.88rem;margin-top:0">You left the batch tier unset. The server scored each file using wording plus your local exemplar folders (<code>knowledge_base_dirs</code>). Adjust any row, then confirm — tiers are saved only when you click <strong>Confirm &amp; continue</strong>.</p>';
 if (Number(cl.corpus_labelled_files || 0) === 0) {
 html += '<p class="alert alert-info" style="font-size:.82rem;margin-top:.6rem">No labelled exemplar corpus was detected — suggestions use document wording only. Override manually if unsure.</p>';
 }
 html += '<div style="margin-top:.8rem;display:flex;flex-direction:column;gap:.5rem">';
 (cl.items || []).forEach(it => {
 const id = escapeHtml(it.document_id || '');
 const esc = escapeHtml(it.filename || 'upload');
 const rationale = escapeHtml(it.rationale || '');
 const conf = escapeHtml(String(it.confidence != null ? it.confidence : ''));
 const p = it.predicted_survey_level;
 html += `<div class="tier-row" data-doc-id="${id}" style="border:1px solid var(--border);border-radius:8px;padding:.65rem .75rem">`;
 html += `<div style="font-weight:700;font-size:.85rem">${esc}</div>`;
 html += `<div style="font-size:.74rem;color:var(--muted);margin:.25rem 0">${rationale} <span title="score separation">(confidence ${conf})</span></div>`;
 html += '<label style="font-size:.8rem;display:flex;align-items:center;gap:.5rem;margin-top:.35rem;flex-wrap:wrap"><span>Survey tier</span>';
 html += '<select class="tier-row-select" style="padding:.35rem .5rem;border-radius:6px;border:1px solid var(--border);min-width:220px">';
 if (p === 0) {
 html += '<option value="" selected disabled style="color:#888">— Select tier (unknown) —</option>';
 }
 html += `<option value="1" ${p === 1 ? 'selected' : ''}>Level 1 — Condition Report</option>`;
 html += `<option value="2" ${p === 2 ? 'selected' : ''}>Level 2 — HomeBuyer</option>`;
 html += `<option value="3" ${p === 3 ? 'selected' : ''}>Level 3 — Building Survey</option>`;
 html += '</select></label></div>';
 });
 html += '</div>';
 body.innerHTML = html;
 $('survey-tier-confirm-btn').onclick = async () => {
 try {
 const rows = Array.from(body.querySelectorAll('.tier-row'));
 const unset = rows.filter(r => !r.querySelector('.tier-row-select').value);
 if (unset.length) {
 showAlert('upload-alert', 'warn',
 `Please select a survey tier for ${unset.length} file(s) before continuing.`);
 return;
 }
 const items = rows.map(row => ({
 document_id: row.getAttribute('data-doc-id'),
 survey_level: parseInt(row.querySelector('.tier-row-select').value, 10),
 }));
 await apiFetch('POST', '/documents/survey-level/apply', { items });
 const primaryTier = _primaryTierFromModalBody(body, primaryDocId);
 $('survey-tier-modal').classList.add('hidden');
 _tierModalReject = null;
 _tierModalResolve = null;
 resolve(primaryTier);
 } catch (e) {
 if (_tierModalReject) _tierModalReject(e);
 _tierModalReject = null;
 _tierModalResolve = null;
 }
 };
 $('survey-tier-modal').classList.remove('hidden');
 });
}
/* ── STEP 1: Upload ─────────────────────────────────────────────────────── */
const zone = $('upload-zone');
const fileInput = $('file-input');
zone.addEventListener('click', () => fileInput.click());
zone.addEventListener('dragover', e => { e.preventDefault(); zone.classList.add('drag-over'); });
zone.addEventListener('dragleave', () => zone.classList.remove('drag-over'));
zone.addEventListener('drop', e => {
 e.preventDefault();
 zone.classList.remove('drag-over');
 const dt = e.dataTransfer.files;
 if (dt && dt.length) setFiles(dt);
});
fileInput.addEventListener('change', () => { if (fileInput.files && fileInput.files.length) setFiles(fileInput.files); });
function setFiles(fileList) {
 const allowed = new Set(['docx', 'pdf', 'zip']);
 const arr = Array.from(fileList);
 const bad = arr.filter(f => !allowed.has((f.name.split('.').pop() || '').toLowerCase()));
 if (bad.length) {
 showAlert('upload-alert', 'warn', '⚠️ Only <b>.docx</b>, <b>.pdf</b>, and <b>.zip</b> are supported.');
 return;
 }
 if (!arr.length) return;
 hideAlert('upload-alert');
 state.files = arr;
 state.file = arr[0];
 const totalBytes = arr.reduce((s, f) => s + f.size, 0);
 $('file-name-text').textContent = arr.length === 1 ? arr[0].name : `${arr.length} files selected`;
 $('file-size-text').textContent = ` (${fmtSize(totalBytes)} total)`;
 $('file-display').classList.remove('hidden');
 zone.classList.add('has-file');
 $('btn-upload').disabled = false;
}
$('btn-upload').addEventListener('click', handleUpload);
async function handleUpload() {
 if (!state.files.length) { showAlert('upload-alert', 'warn', 'Please choose at least one file.'); return; }
 if (!state.token || !state.tenantId) { showAuthOverlay(); return; }
 const tid = state.tenantId; // identity comes from the verified token, not the input
 $('tenant-badge').textContent = `🔑 ${tid}`;
 $('tenant-badge').classList.add('visible');
 showStep(2);
 $('proc-title').textContent = 'Uploading reference library…';
 $('proc-detail').textContent = 'Saving files to the database (one row per document)';
 $('proc-pill').className = 'status-pill pill-processing';
 $('proc-pill').textContent = '⏫ Uploading';
 try {
 const fd = new FormData();
 state.files.forEach(f => fd.append('files', f, f.name));
 fd.append('tenant_id', state.tenantId);
 const explicitTier = ($('survey-level-input') && $('survey-level-input').value) || '';
 if (explicitTier) fd.append('survey_level', explicitTier);
 const up = await apiFetch('POST', '/upload/batch', fd);
 if (up.accepted === 0) {
 const msg = (up.items && up.items[0] && up.items[0].message) || up.message || 'No files accepted';
 throw new Error(msg);
 }
 state.docIds = up.items.filter(it => it.document_id).map(it => it.document_id);
 if (!state.docIds.length) throw new Error('Batch upload returned no document IDs');
 state.sessionDocIds = Array.from(new Set([...(state.sessionDocIds || []), ...state.docIds]));
 $('proc-title').textContent = 'Indexing reference documents…';
 $('proc-detail').textContent = `Queued ${up.accepted} file(s) for parsing & embedding${up.rejected ? ` (${up.rejected} rejected)` : ''}`;
 $('proc-pill').textContent = '⚙️ Processing';
 const maxPolls = 7200;
 let lastSummary = null;
 for (let i = 0; i < maxPolls; i++) {
 await sleep(2000);
 lastSummary = await apiFetch('POST', '/documents/batch-status', { document_ids: state.docIds });
 const busy = lastSummary.pending + lastSummary.processing;
 const total = state.docIds.length;
 const done = lastSummary.complete + lastSummary.failed;
 $('proc-detail').textContent =
 `Indexing: ${lastSummary.complete} complete, ${lastSummary.failed} failed, ${busy} in progress (${done}/${total})`;
 if (busy === 0) break;
 }
 if (!lastSummary || lastSummary.pending + lastSummary.processing > 0) {
 throw new Error('Indexing still running — open the app later or increase server timeout. Partial results may exist.');
 }
 const firstOk = lastSummary.items.find(x => x.status === 'complete');
 if (!firstOk) {
 const bad = lastSummary.items.filter(x => x.status === 'failed' || x.status === 'not_found');
 const hints = bad.map(x => (x.filename ? `${x.filename}: ` : '') + (x.error || x.status)).filter(Boolean);
 const suffix = hints.length ? ` Details: ${hints.slice(0, 4).join(' · ')}` : ' Check file formats and server logs.';
 throw new Error('No documents finished indexing successfully.' + suffix);
 }
 state.docId = firstOk.document_id;
 const summary = await apiFetch('GET', '/documents/tenant-chunk-summary', null);
 if (!summary.indexed_chunk_count) {
 throw new Error(
 'Documents were saved but no text was indexed for AI retrieval. ' +
 'Wait for indexing to finish or re-upload; check GET /health (faiss_vector_count).'
 );
 }
 let reportSurveyLevel;
 if (explicitTier) {
 reportSurveyLevel = parseInt(explicitTier, 10);
 } else {
 $('proc-title').textContent = 'Suggesting RICS survey tiers…';
 $('proc-detail').textContent = 'Review and confirm each file in the dialog (no tier is saved until you confirm).';
 const cl = await apiFetch('POST', '/documents/survey-level/classify', {
 document_ids: state.docIds,
 force_refresh_corpus: false,
 });
 reportSurveyLevel = await openSurveyTierConfirmModal(cl, firstOk.document_id);
 }
 const tierQ = `&survey_level=${encodeURIComponent(String(reportSurveyLevel))}`;
 let rep;
 try {
 rep = await apiFetch('POST', `/reports?document_id=${encodeURIComponent(state.docId)}${tierQ}`, null);
 } catch (e) {
 // Server-side guardrail: if the primary document is classified as a different tier,
 // show a full-screen warning modal — not a dismiss-able browser confirm() dialog.
 const msg = (e && e.message) ? String(e.message) : '';
 const low = msg.toLowerCase();
 if (
 low.includes('tier mismatch') ||
 low.includes('tier not verified') ||
 low.includes('primary document looks like rics level') ||
 low.includes('could not confidently verify')
 ) {
 const confirmUrl =
 `/reports?document_id=${encodeURIComponent(state.docId)}${tierQ}&confirm_tier_mismatch=true`;
 try {
 // _openTierMismatchModal resolves if user clicks "proceed", rejects if cancelled.
 await _openTierMismatchModal(e.data || {});
 } catch {
 // User clicked back — abort and let them fix the tier selection.
 showStep(1);
 showAlert('upload-alert', 'warn',
 'Upload cancelled. Please re-upload and select the correct survey tier from the dropdown.');
 return;
 }
 rep = await apiFetch('POST', confirmUrl, null);
 } else {
 throw e;
 }
 }
 state.reportId = rep.report_id;
 await loadTemplateCatalog(reportSurveyLevel);
 await loadPhotoPolicy(state.reportId);
 const label = state.files.length === 1 ? (state.files[0].name) : `${up.accepted} reference document(s)`;
 $('doc-fname').textContent = label;
 $('doc-stats').textContent =
 `✅ ${up.accepted} stored in DB — ${summary.indexed_chunk_count} chunks indexed for AI retrieval` +
 (up.rejected ? ` (${up.rejected} rejected in upload)` : '');
 buildSectionCards();
 showStep(3);
 } catch (err) {
 if (err && err.message === 'cancelled') {
 $('proc-spinner').style.display = '';
 $('proc-pill').className = 'status-pill pill-pending';
 $('proc-pill').textContent = '⏳ Pending';
 showStep(1);
 showAlert('upload-alert', 'warn', 'Tier confirmation was cancelled. Pick a batch tier on the form, or leave it unset to confirm per-file suggestions after upload.');
 return;
 }
 $('proc-spinner').style.display = 'none';
 $('proc-pill').className = 'status-pill pill-failed';
 $('proc-pill').textContent = '❌ Failed';
 $('proc-title').textContent = 'Something went wrong';
 $('proc-detail').textContent = err.message || String(err);
 }
}
/* ── Group label map (overwritten by /templates/catalog to match survey tier) ─ */
const STATIC_L3_GROUP_LABELS = {
 A:'A — About the inspection',
 B:'B — Overall opinion and summary of ratings',
 C:'C — About the property',
 D:'D — Outside the property',
 E:'E — Inside the property',
 F:'F — Services',
 G:'G — Grounds (including shared areas for flats)',
 H:'H — Issues for your legal advisers',
 I:'I — Risks',
 J:'J — Energy matters',
 K:"K — Surveyor's declaration",
 L:'L — What to do now',
 M:'M — Description of the RICS Home Survey - Level 3 service and terms of engagement',
 N:'N — Typical house diagram',
};
let RICS_GROUP_LABELS = { ...STATIC_L3_GROUP_LABELS };
/* ── STEP 3: Section Config ──────────────────────────────────────────────── */
function buildSectionCards() {
 const container = $('section-cards');
 container.innerHTML = '';
 let lastGroup = null;
 RICS_SECTIONS.forEach(sec => {
 state.sections[sec.code] = { action: 'ai', aiTask: 'generate', bullets: '' };
 // Insert group header when the group changes
 if (sec.group !== lastGroup) {
 lastGroup = sec.group;
 const hdr = document.createElement('div');
 hdr.className = 'section-group-header';
 hdr.innerHTML = `<span class="grp-badge">${sec.group}</span><span class="grp-label">${RICS_GROUP_LABELS[sec.group] || sec.group}</span><span class="grp-line"></span>`;
 container.appendChild(hdr);
 }
 const card = document.createElement('div');
 card.className = 'section-card active';
 card.id = `sc-${sec.code}`;
 card.innerHTML = `
 <div class="section-head" onclick="toggleCardOpen('${sec.code}')">
 <span class="section-code" id="scode-${sec.code}">${sec.code}</span>
 <div class="section-head-text">
 <strong>${sec.title}</strong>
 <p id="shead-desc-${sec.code}">✍️ Generate Content — expand to configure</p>
 </div>
 <div class="toggle-wrap">
 <span class="toggle-label" id="tl-${sec.code}">AI Active</span>
 <input type="checkbox" class="toggle" id="tog-${sec.code}" checked
 onclick="event.stopPropagation(); toggleAction('${sec.code}')" />
 </div>
 </div>
 <div class="section-body" id="sb-${sec.code}">
 <div class="keep-msg" id="keep-msg-${sec.code}">
 🔒 This section will be left blank for manual writing
 </div>
 <div id="gen-area-${sec.code}">
 <div id="photo-area-${sec.code}"></div>
 <div class="ai-mode-panel">
 <div class="ai-mode-label">AI Mode</div>
 <div class="ai-mode-tabs" id="tabs-${sec.code}">
 <button type="button" class="ai-mode-tab active" data-task="generate" onclick="event.preventDefault(); setAiTask('${sec.code}','generate')">✍️ Generate Content</button>
 <button type="button" class="ai-mode-tab" data-task="proofread" onclick="event.preventDefault(); setAiTask('${sec.code}','proofread')">📝 Proofread</button>
 <button type="button" class="ai-mode-tab" data-task="enhance" onclick="event.preventDefault(); setAiTask('${sec.code}','enhance')">⚙️ Enhance Technical Depth</button>
 </div>
 <div class="ai-mode-desc" id="mode-desc-${sec.code}">${AI_MODE_DESCRIPTIONS.generate}</div>
 </div>
 <div class="bullets-toolbar">
 <label style="font-size:.82rem;font-weight:600;color:var(--navy);margin:0">
 Inspection Notes <span style="font-weight:400;color:var(--muted)">(one per line — rough shorthand is fine)</span>
 </label>
 <button type="button" class="btn-similar" title="Compare this text to your uploads and other sections" onclick="event.preventDefault(); runSimilarityCheck('${sec.code}')">🔎 Check similar</button>
 </div>
 <textarea class="bullets-area" id="bullets-${sec.code}"
 placeholder="Write rough notes — the AI will interpret and expand them:\ne.g. main roof hip slate some slipped tiles eaves gutters blocked\ne.g. solid brick walls 275mm DPC visible slight crack NW corner\ne.g. gas CH Vaillant combi boiler 2015 last serviced 2022"
 oninput="saveBullets('${sec.code}')"
 ></textarea>
 <div class="bullets-hint">💡 Suggested detail: <em>${sec.hint}</em></div>
 </div>
 </div>
 `;
 container.appendChild(card);
 renderPhotoArea(sec.code);
 // Auto-open the first few key sections
 if (['D','E2','E4'].includes(sec.code)) toggleCardOpen(sec.code);
 });
 updateGenCount();
}
function renderPhotoArea(code) {
 const host = $(`photo-area-${code}`);
 if (!host) return;
 // Always display the upload control to avoid "feature disappears" UX.
 // Photo policy is guidance only (required/optional/not needed) and should not hide the tool.
 const p = PHOTO_POLICY[code] || { policy: 'NO_IMAGE_NEEDED', reason: 'No photo guidance available yet.' };
 const pol = (p.policy || 'NO_IMAGE_NEEDED').toUpperCase();
 const isReq = pol === 'REQUIRES_IMAGE';
 const label = isReq ? '📷 Photos recommended' : (pol === 'OPTIONAL_IMAGE' ? '📷 Photos (optional)' : '📷 Photos (optional)');
 host.innerHTML = `
 <div class="photo-panel ${isReq ? 'photo-required' : 'photo-optional'}">
 <div style="display:flex;justify-content:space-between;align-items:center;gap:12px">
 <div>
 <div style="font-weight:700;color:var(--navy)">${label}</div>
 <div style="font-size:.82rem;color:var(--muted)">${escapeHtml(p.reason || '')}</div>
 </div>
 <div>
 <input type="file" id="photo-input-${code}" accept="image/*" multiple style="display:none"
 onchange="uploadSectionPhotos('${code}')" />
 <button type="button" class="btn-similar" onclick="event.preventDefault(); document.getElementById('photo-input-${code}').click();">
 Upload photo(s)
 </button>
 </div>
 </div>
 <p class="photo-ai-hint">Upload up to ${PHOTO_LIMITS.max_photos_per_section} photos. Tick ✓ on up to ${PHOTO_LIMITS.max_photos_for_ai} for AI analysis when generating this section.</p>
 <div class="photo-thumbs" id="photo-thumbs-${code}" style="display:flex;gap:8px;flex-wrap:wrap;margin-top:10px"></div>
 <div class="photo-slot-count" id="photo-slot-count-${code}"></div>
 </div>
 `;
 refreshSectionPhotos(code);
}
const _photoBlobUrls = new Map();
function _revokeSectionPhotoBlobUrls(sectionCode) {
 const prefix = `${sectionCode}:`;
 for (const [key, url] of [..._photoBlobUrls.entries()]) {
 if (key.startsWith(prefix)) {
 URL.revokeObjectURL(url);
 _photoBlobUrls.delete(key);
 }
 }
}
/** URL for <img src> — browsers cannot send Authorization headers. */
function photoAuthenticatedSrc(path) {
 if (!state.token || !path) return '';
 const u = new URL(apiUrl(path));
 u.searchParams.set('access_token', state.token);
 return u.toString();
}
async function loadAuthenticatedPhotoInto(img, path, cacheKey) {
 if (!state.token) return;
 try {
 const res = await fetch(apiUrl(path), { headers: buildAuthHeaders() });
 if (res.status === 401) {
 handleAuthExpired();
 return;
 }
 if (!res.ok) return;
 const blob = await res.blob();
 const prev = _photoBlobUrls.get(cacheKey);
 if (prev) URL.revokeObjectURL(prev);
 const objUrl = URL.createObjectURL(blob);
 _photoBlobUrls.set(cacheKey, objUrl);
 img.src = objUrl;
 } catch { /* leave placeholder */ }
}
function _sectionPhotoSelectedIds(photos) {
 return (photos || []).filter(p => p.selected_for_ai).map(p => p.photo_id);
}
async function setSectionPhotoAiSelection(code, photoIds) {
 const res = await apiFetch(
 'PUT',
 `/reports/${encodeURIComponent(state.reportId)}/sections/${encodeURIComponent(code)}/photos/ai-selection`,
 { photo_ids: photoIds },
 );
 return res;
}
async function togglePhotoForAi(code, photoId, isSelected, currentSelectedIds) {
 const maxAi = PHOTO_LIMITS.max_photos_for_ai || 2;
 let next = [...(currentSelectedIds || [])];
 if (isSelected) {
 next = next.filter(id => id !== photoId);
 } else {
 if (next.length >= maxAi) {
 showToast(`You can only select ${maxAi} photo(s) for AI per section.`, 'warn');
 return;
 }
 next.push(photoId);
 }
 try {
 await setSectionPhotoAiSelection(code, next);
 await refreshSectionPhotos(code);
 } catch (err) {
 showToast(err.message || 'Could not update photo selection.', 'err');
 }
}
async function deleteSectionPhoto(code, photoId) {
 if (!confirm('Remove this photo from this section?')) return;
 try {
 await apiFetch(
 'DELETE',
 `/reports/${encodeURIComponent(state.reportId)}/sections/${encodeURIComponent(code)}/photos/${encodeURIComponent(photoId)}`,
 null,
 );
 const cacheKey = `${code}:${photoId}`;
 const prev = _photoBlobUrls.get(cacheKey);
 if (prev) {
 URL.revokeObjectURL(prev);
 _photoBlobUrls.delete(cacheKey);
 }
 showToast('Photo removed.', 'ok');
 await refreshSectionPhotos(code);
 } catch (err) {
 showToast(err.message || 'Could not delete photo.', 'err');
 }
}
async function refreshSectionPhotos(code) {
 if (!state.reportId) return;
 const thumbs = $(`photo-thumbs-${code}`);
 const slotCount = $(`photo-slot-count-${code}`);
 if (!thumbs) return;
 const maxTotal = PHOTO_LIMITS.max_photos_per_section || 5;
 const maxAi = PHOTO_LIMITS.max_photos_for_ai || 2;
 _revokeSectionPhotoBlobUrls(code);
 try {
 const res = await apiFetch('GET', `/reports/${encodeURIComponent(state.reportId)}/sections/${encodeURIComponent(code)}/photos`, null);
 if (res.max_photos_per_section != null) PHOTO_LIMITS.max_photos_per_section = res.max_photos_per_section;
 if (res.max_photos_for_ai != null) PHOTO_LIMITS.max_photos_for_ai = res.max_photos_for_ai;
 const photos = res.photos || [];
 const selectedIds = _sectionPhotoSelectedIds(photos);
 thumbs.innerHTML = '';
 photos.forEach(p => {
 const wrap = document.createElement('div');
 wrap.className = 'photo-thumb-wrap' + (p.selected_for_ai ? ' ai-selected' : '');
 const frame = document.createElement('div');
 frame.className = 'photo-thumb-frame';
 const img = document.createElement('img');
 img.alt = '';
 img.title = p.original_filename || 'Photo';
 const cacheKey = `${code}:${p.photo_id}`;
 const authedSrc = photoAuthenticatedSrc(p.url);
 if (authedSrc) {
 img.src = authedSrc;
 img.onerror = () => loadAuthenticatedPhotoInto(img, p.url, cacheKey);
 } else {
 loadAuthenticatedPhotoInto(img, p.url, cacheKey);
 }
 const delBtn = document.createElement('button');
 delBtn.type = 'button';
 delBtn.className = 'photo-del-btn';
 delBtn.title = 'Delete photo';
 delBtn.setAttribute('aria-label', 'Delete photo');
 delBtn.textContent = '×';
 delBtn.onclick = (ev) => {
 ev.preventDefault();
 ev.stopPropagation();
 deleteSectionPhoto(code, p.photo_id);
 };
 const tick = document.createElement('button');
 tick.type = 'button';
 tick.className = 'photo-ai-tick' + (p.selected_for_ai ? ' on' : '');
 tick.title = p.selected_for_ai ? 'Remove from AI analysis' : 'Use for AI analysis';
 tick.textContent = '✓';
 const atCap = !p.selected_for_ai && selectedIds.length >= maxAi;
 tick.disabled = atCap;
 tick.onclick = (ev) => {
 ev.preventDefault();
 ev.stopPropagation();
 togglePhotoForAi(code, p.photo_id, !!p.selected_for_ai, selectedIds);
 };
 frame.appendChild(img);
 frame.appendChild(delBtn);
 frame.appendChild(tick);
 wrap.appendChild(frame);
 const nameEl = document.createElement('div');
 nameEl.className = 'photo-thumb-name';
 nameEl.textContent = p.original_filename || 'Photo';
 nameEl.title = p.original_filename || '';
 wrap.appendChild(nameEl);
 thumbs.appendChild(wrap);
 });
 if (slotCount) {
 const aiLabel = selectedIds.length
 ? `${selectedIds.length}/${maxAi} selected for AI`
 : `0/${maxAi} selected for AI`;
 slotCount.textContent = `${photos.length}/${maxTotal} uploaded · ${aiLabel}`;
 }
 const inp = document.getElementById(`photo-input-${code}`);
 if (inp) {
 inp.disabled = photos.length >= maxTotal;
 const btn = inp.parentElement && inp.parentElement.querySelector('button');
 if (btn) btn.disabled = photos.length >= maxTotal;
 }
 } catch (e) {
 thumbs.innerHTML = '';
 if (slotCount) slotCount.textContent = '';
 }
}
async function uploadSectionPhotos(code) {
 const inp = document.getElementById(`photo-input-${code}`);
 if (!inp || !inp.files || inp.files.length === 0) return;
 const maxTotal = PHOTO_LIMITS.max_photos_per_section || 5;
 let existing = 0;
 try {
 const cur = await apiFetch('GET', `/reports/${encodeURIComponent(state.reportId)}/sections/${encodeURIComponent(code)}/photos`, null);
 existing = (cur.photos || []).length;
 } catch { /* ignore */ }
 const incoming = inp.files.length;
 if (existing + incoming > maxTotal) {
 showToast(`Maximum ${maxTotal} photos per section (${existing} already uploaded).`, 'warn');
 inp.value = '';
 return;
 }
 const fd = new FormData();
 Array.from(inp.files).forEach(f => fd.append('files', f));
 await apiFetch('POST', `/reports/${encodeURIComponent(state.reportId)}/sections/${encodeURIComponent(code)}/photos`, fd);
 inp.value = '';
 await refreshSectionPhotos(code);
}
function toggleCardOpen(code) { $(`sb-${code}`).classList.toggle('open'); }
function toggleAction(code) {
 const tog = $(`tog-${code}`);
 const card = $(`sc-${code}`);
 const label = $(`tl-${code}`);
 const keepMsg = $(`keep-msg-${code}`);
 const genArea = $(`gen-area-${code}`);
 if (tog.checked) {
 state.sections[code].action = 'ai';
 const task = state.sections[code].aiTask;
 _applyCardStyle(code, task);
 label.textContent = 'AI Active';
 keepMsg.classList.remove('visible');
 genArea.style.display = 'block';
 } else {
 state.sections[code].action = 'keep';
 card.className = 'section-card locked';
 $(`scode-${code}`).className = 'section-code';
 $(`scode-${code}`).style.background = '#aaa';
 label.textContent = 'Keep Blank';
 keepMsg.classList.add('visible');
 genArea.style.display = 'none';
 $(`sb-${code}`).classList.add('open');
 }
 updateGenCount();
}
function setAiTask(code, task) {
 state.sections[code].aiTask = task;
 // Update tab active states
 const tabs = $(`tabs-${code}`).querySelectorAll('.ai-mode-tab');
 tabs.forEach(t => t.classList.toggle('active', t.dataset.task === task));
 // Update description
 $(`mode-desc-${code}`).textContent = AI_MODE_DESCRIPTIONS[task];
 // Update header description
 const labels = { generate: '✍️ Generate Content', proofread: '📝 Proofread', enhance: '⚙️ Enhance Technical Depth' };
 $(`shead-desc-${code}`).textContent = `${labels[task]} — add fact bullets below`;
 // Style card border
 _applyCardStyle(code, task);
 updateGenCount();
}
function _applyCardStyle(code, task) {
 const card = $(`sc-${code}`);
 const scode = $(`scode-${code}`);
 card.className = 'section-card ' + (task === 'generate' ? 'active' : task === 'proofread' ? 'ai-proofread' : 'ai-enhance');
 scode.style.background = task === 'generate' ? '' : task === 'proofread' ? 'var(--gold)' : 'var(--purple)';
 scode.style.color = task === 'proofread' ? 'var(--navy)' : '';
}
function saveBullets(code) { state.sections[code].bullets = $(`bullets-${code}`).value; }
/* ── Global Notes Upload ──────────────────────────────────────────────────── */
function triggerGlobalNotesUpload() {
 $('global-notes-input').click();
}
/**
 * Server-side cascade router (P1 code → P1b element label → P2 keywords → P3 fallback),
 * then collapse L3 hits onto the active survey-level section codes.
 */
async function routeLinesToSections(lines) {
 const data = await apiFetch('POST', '/route-notes', { lines });
 const l3Routed = data.routed || {};
 const unmatched = data.unmatched || [];
 const activeCodes = new Set(RICS_SECTIONS.map(s => s.code));
 const result = Object.fromEntries(RICS_SECTIONS.map(s => [s.code, []]));
 const stats = {
 activeLevel: state.surveyLevel || null,
 totalLines: 0,
 routedDirect: 0,
 collapsedFromL3: 0,
 collapseMap: {},
 droppedToFallback: 0,
 fallbackCode: null,
 unmatchedCount: unmatched.length,
 };
 function _collapse(l3Code) {
 if (activeCodes.has(l3Code)) return l3Code;
 const groupLetter = l3Code.charAt(0);
 if (activeCodes.has(groupLetter)) return groupLetter;
 let bestNum = -1;
 let bestCode = null;
 for (const c of activeCodes) {
 if (c.charAt(0) !== groupLetter) continue;
 const m = c.match(/^([A-Z])(\d+)$/);
 if (!m) continue;
 const n = parseInt(m[2], 10);
 if (n > bestNum) { bestNum = n; bestCode = c; }
 }
 return bestCode;
 }
 for (const [l3Code, lineList] of Object.entries(l3Routed)) {
 if (!lineList.length) continue;
 stats.totalLines += lineList.length;
 const target = _collapse(l3Code);
 if (target) {
 result[target].push(...lineList);
 if (target === l3Code) {
 stats.routedDirect += lineList.length;
 } else {
 stats.collapsedFromL3 += lineList.length;
 stats.collapseMap[l3Code] = target;
 }
 } else {
 const fb = RICS_SECTIONS[0]?.code || null;
 if (fb && result[fb]) {
 result[fb].push(...lineList);
 stats.fallbackCode = fb;
 stats.droppedToFallback += lineList.length;
 }
 }
 }
 if (unmatched.length) {
 const fb = RICS_SECTIONS.find(s => s.code === 'UNASSIGNED')?.code || null;
 if (fb && result[fb]) {
 result[fb].push(...unmatched);
 }
 }
 return { routed: result, stats };
}
async function handleGlobalNotes(event) {
 const file = event.target.files && event.target.files[0];
 if (!file) return;
 const btn = $('btn-notes-upload');
 const status = $('global-notes-status');
 btn.disabled = true;
 status.className = 'notes-upload-status nus-busy';
 status.textContent = `🤖 Reading "${file.name}" and routing observations to sections…`;
 try {
 const fd = new FormData();
 fd.append('file', file, file.name);
 if (!state.token) { showAuthOverlay(); throw new Error('Log in to upload notes.'); }
 const res = await fetch(apiUrl('/extract-notes'), {
 method: 'POST',
 headers: buildAuthHeaders(),
 body: fd,
 });
 if (res.status === 401) { handleAuthExpired(); throw new Error('Your session expired. Please log in again.'); }
 const data = await res.json().catch(() => ({}));
 if (!res.ok) {
 const detail = data && data.detail;
 throw new Error(typeof detail === 'string' ? detail : `HTTP ${res.status}`);
 }
 const lines = (data.lines || []).filter(l => l.trim());
 if (!lines.length) throw new Error('No text found in the document.');
 // Notes-content tier guard: if the classifier read the *content* of these
 // notes as a different tier from the report's selected tier, surface the
 // existing tier-mismatch modal before routing. The classifier returns 0 +
 // confidence 0.0 when there isn't enough text — those cases skip the modal
 // so users aren't pestered with meaningless warnings on short notes.
 const noteLevel = parseInt(data.predicted_survey_level, 10) || 0;
 const reportLevel = parseInt(state.surveyLevel, 10) || 0;
 const noteConf = Number(data.confidence) || 0;
 if (noteLevel && reportLevel && noteLevel !== reportLevel && noteConf >= 0.20) {
 try {
 await _openTierMismatchModal({
 detail: {
 predicted_survey_level: noteLevel,
 requested_survey_level: reportLevel,
 confidence: noteConf,
 rationale:
 `Notes content classifier: ${data.rationale || ''} ` +
 `Routing will fold any out-of-level codes into the closest active section ` +
 `(e.g. on Level 1, all element observations land in sections E, F, G, H — ` +
 `no per-element ratings exist at this tier).`,
 },
 });
 } catch (cancelled) {
 // User clicked back — abort the upload and let them re-upload onto the
 // correct report level (or with a different notes file).
 status.className = 'notes-upload-status nus-warn';
 status.textContent = '⚠ Upload cancelled — tier mismatch was not accepted.';
 return;
 }
 }
 // Replace prior bullet boxes — do not prepend onto stale misrouted content.
 RICS_SECTIONS.forEach(sec => {
 const ta = $(`bullets-${sec.code}`);
 if (ta) {
 ta.value = '';
 saveBullets(sec.code);
 }
 });
 const { routed, stats } = await routeLinesToSections(lines);
 let filled = 0;
 for (const [code, sectionLines] of Object.entries(routed)) {
 if (!sectionLines.length) continue;
 const ta = $(`bullets-${code}`);
 if (!ta) continue;
 const existing = ta.value.trim();
 ta.value = existing ? sectionLines.join('\n') + '\n' + existing : sectionLines.join('\n');
 saveBullets(code);
 const body = $(`sb-${code}`);
 if (body && !body.classList.contains('open')) body.classList.add('open');
 filled += sectionLines.length;
 }
 const sectionsFilled = Object.values(routed).filter(l => l.length).length;
 // Report routing transparency so silent misrouting is impossible: if any lines were
 // collapsed from L3 codes (e.g. K1 → K on L1) or fell back to the first section,
 // surface that count and the affected sections directly in the toast.
 const collapseEntries = Object.entries(stats.collapseMap);
 const extras = [];
 if (collapseEntries.length) {
 const sample = collapseEntries.slice(0, 4)
 .map(([from, to]) => `${from}→${to}`)
 .join(', ');
 const more = collapseEntries.length > 4 ? ` (+${collapseEntries.length - 4} more)` : '';
 extras.push(`${stats.collapsedFromL3} line(s) folded to active-level sections [${sample}${more}]`);
 }
 if (stats.droppedToFallback) {
 extras.push(`${stats.droppedToFallback} unmatched line(s) attached to section ${stats.fallbackCode}`);
 }
 status.className = 'notes-upload-status nus-ok';
 status.textContent = extras.length
 ? `✅ "${data.filename}" — ${lines.length} line(s) distributed across ${sectionsFilled} section(s). ` +
 `Routing notes: ${extras.join('; ')}. Review each section below, then click ✨ Run AI.`
 : `✅ "${data.filename}" — ${lines.length} line(s) distributed across ${sectionsFilled} section(s). ` +
 `Review each section below, then click ✨ Run AI.`;
 } catch (err) {
 status.className = 'notes-upload-status nus-err';
 status.textContent = `❌ ${err.message}`;
 } finally {
 btn.disabled = false;
 event.target.value = '';
 }
}
/* ── Report composition depth (minimum | medium | maximum) ───────────────── */
const INTERFERENCE_MODES = {
 minimum: {
 label: 'Baseline preservation',
 badge: 'Baseline preservation',
 oneLine: 'In-place fact updates on your past report baseline; no invented defects or materials.',
 tooltip: 'Past report scaffolding retained verbatim where notes are silent.',
 },
 medium: {
 label: 'Technical edit',
 badge: 'Technical edit',
 oneLine: 'Proofread in-place updates on the baseline; claims traceable to your field notes.',
 tooltip: 'Formal British English; surgical edits only.',
 },
 maximum: {
 label: 'Full narrative edit',
 badge: 'Full narrative edit',
 oneLine: 'Long-form past report baseline retained; full RICS Home Survey narrative depth.',
 tooltip: 'Default for Level 3. Never fabricate; unmatched notes surface as UNMATCHED.',
 },
};
function hasGeneratedReportContent() {
 return !!(state.reportId && Object.values(state.results || {}).some(
 (r) => r && String(r.text || '').replace(/\s+/g, '').length > 0,
 ));
}
function normalizeInterferenceLevel(v) {
 const t = String(v || '').trim().toLowerCase();
 if (t === 'minimal') return 'minimum';
 return INTERFERENCE_MODES[t] ? t : null;
}
function getInterferenceLevel() {
 const n = normalizeInterferenceLevel(state.interferenceLevel);
 return n || 'maximum';
}
function syncInterferencePillsUi() {
 const cur = getInterferenceLevel();
 document.querySelectorAll('.interference-pill').forEach((btn) => {
 const lv = btn.getAttribute('data-level');
 const on = lv === cur;
 btn.classList.toggle('active', on);
 btn.setAttribute('aria-pressed', on ? 'true' : 'false');
 });
 const m = INTERFERENCE_MODES[cur];
 const el = $('interference-detail-desc');
 if (el && m) el.textContent = m.oneLine;
}
function setInterferenceLevel(nextRaw, { skipConfirm } = {}) {
 const next = normalizeInterferenceLevel(nextRaw) || 'maximum';
 const cur = getInterferenceLevel();
 if (next === cur) return true;
 if (!skipConfirm && hasGeneratedReportContent()) {
 const ok = confirm('Changing the composition depth will regenerate your report. Continue?');
 if (!ok) return false;
 }
 state.interferenceLevel = next;
 syncInterferencePillsUi();
 return true;
}
function initInterferencePills() {
 document.querySelectorAll('.interference-pill').forEach((btn) => {
 btn.addEventListener('click', () => {
 const lv = btn.getAttribute('data-level');
 if (lv) setInterferenceLevel(lv);
 });
 btn.addEventListener('mouseenter', () => {
 const lv = normalizeInterferenceLevel(btn.getAttribute('data-level'));
 const m = lv && INTERFERENCE_MODES[lv];
 const el = $('interference-detail-desc');
 if (el && m) el.textContent = m.oneLine;
 });
 btn.addEventListener('mouseleave', () => {
 syncInterferencePillsUi();
 });
 });
 syncInterferencePillsUi();
}
function interferenceFromSectionPayload(r) {
 if (!r) return null;
 const il = normalizeInterferenceLevel(r.interference_level);
 if (il) return il;
 return null;
}
function getRetrievalLevel() {
 const el = $('retrieval-level');
 const v = el ? String(el.value || '').trim() : '';
 return (v === 'document' || v === 'section' || v === 'paragraph') ? v : 'paragraph';
}
function useCacheEnabled() { return !!($('use-cache-toggle') && $('use-cache-toggle').checked); }
function strictUploadsOnlyEnabled() {
 return !!($('strict-uploads-toggle') && $('strict-uploads-toggle').checked);
}
function updateGenCount() {
 const n = Object.values(state.sections).filter(s => s.action === 'ai').length;
 $('gen-count').textContent = n;
 $('btn-generate').disabled = n === 0;
}
$('btn-generate').addEventListener('click', handleGenerate);
initInterferencePills();
/* ── STEP 4: Generation Flow ─────────────────────────────────────────────── */
async function handleGenerate() {
 const toAI = RICS_SECTIONS.filter(s => state.sections[s.code].action === 'ai');
 const toKeep = RICS_SECTIONS.filter(s => state.sections[s.code].action === 'keep');
 const genList = $('gen-list');
 genList.innerHTML = '';
 RICS_SECTIONS.forEach(sec => {
 const s = state.sections[sec.code];
 const isAI = s.action === 'ai';
 const task = s.aiTask;
 const colorClass = isAI ? `c-${task}` : 'c-keep';
 const statusText = isAI ? '⏳ Waiting' : '⏭ Skipped';
 const statusClass = isAI ? 'gs-waiting' : 'gs-skip';
 const modeLabel = isAI ? { generate:'✍️ Generate', proofread:'📝 Proofread', enhance:'⚙️ Enhance' }[task] : 'Keep Blank';
 const row = document.createElement('div');
 row.className = 'gen-row'; row.id = `gr-${sec.code}`;
 row.innerHTML = `
 <span class="code ${colorClass}">${sec.code}</span>
 <span class="label">${sec.title}</span>
 <span style="font-size:.73rem;color:var(--muted);flex-shrink:0">${modeLabel}</span>
 <div class="progress-bar hidden" id="gpb-${sec.code}"><div class="progress-fill pf-${isAI ? task : 'generate'}" id="gpf-${sec.code}"></div></div>
 <span class="gen-status ${statusClass}" id="gs-${sec.code}">${statusText}</span>
 `;
 genList.appendChild(row);
 });
 const il = getInterferenceLevel();
 const minfo = INTERFERENCE_MODES[il] || INTERFERENCE_MODES.medium;
 const cacheLabel = useCacheEnabled() ? 'cache on' : 'cache off';
 const maxHint = il === 'maximum' ? ' Maximum mode: expect ~2–6 min per section.' : '';
 $('gen-step-subtitle').textContent =
 `${minfo.label} (${cacheLabel}) — notes → evidence → generation.${maxHint}`;
 showStep(4);
 if (toAI.length > 1 && canBatchSections(toAI)) {
 await generateSectionsBatch(toAI);
 } else {
 for (const sec of toAI) {
 await generateSection(sec);
 }
 }
 await loadResults();
 showStep(5);
}
function referenceDocumentIdsForRag() {
 // Every user-uploaded reference for this tenant session: current primary + prior uploads.
 const ids = new Set();
 (state.sessionDocIds || []).forEach(id => { if (id) ids.add(id); });
 if (state.docId) ids.add(state.docId);
 (state.docIds || []).forEach(id => { if (id) ids.add(id); });
 return Array.from(ids);
}
/** Batch API requires every selected section to use the same AI task (generate / proofread / enhance). */
function canBatchSections(sections) {
 if (!sections || sections.length < 2) return false;
 const tasks = new Set(sections.map(sec => state.sections[sec.code].aiTask));
 return tasks.size === 1;
}
function isReportJobDone(status) {
 return status === 'complete' || status === 'partial';
}
/** Poll budget scales with section count (sequential jobs can run 30–90s per section). */
function generationPollPlan(sectionCount, il) {
 const perSectionSec = il === 'maximum' ? 120 : il === 'high' ? 90 : 60;
 const pollMs = il === 'maximum' ? 3000 : 2000;
 const totalSec = Math.min(4 * 3600, Math.max(600, sectionCount * perSectionSec));
 const maxPolls = Math.ceil((totalSec * 1000) / pollMs);
 return { pollMs, maxPolls, totalSec, sectionCount };
}
function formatGenerationProgressSubtitle(st, plan, elapsedMs) {
 const saved = Number(st.sections_saved) || 0;
 const withText = Number(st.sections_with_text) || 0;
 const total = st.generation_section_total != null
 ? Number(st.generation_section_total)
 : (plan?.sectionCount ?? null);
 const elapsedSec = st.generation_elapsed_seconds != null
 ? Math.round(Number(st.generation_elapsed_seconds))
 : Math.round(elapsedMs / 1000);
 let line;
 if (total != null && total > 0) {
 line = `Progress: ${saved} / ${total} sections saved (${withText} with text)`;
 } else if (saved > 0) {
 line = `Progress: ${saved} sections saved (${withText} with text)`;
 } else {
 line = 'Interpreting notes → expanding → retrieving → generating';
 }
 const budget = plan?.totalSec;
 if (budget) line += ` · ${elapsedSec}s / ~${budget}s`;
 else if (elapsedSec > 0) line += ` · ${elapsedSec}s`;
 return line;
}
function applyBatchGenerationProgress(st, sections, plan, elapsedMs) {
 const sub = $('gen-step-subtitle');
 if (sub) sub.textContent = formatGenerationProgressSubtitle(st, plan, elapsedMs);
 const saved = Number(st.sections_saved) || 0;
 const total = st.generation_section_total != null
 ? Number(st.generation_section_total)
 : sections.length;
 const overallBar = $('gen-overall-progress');
 const overallFill = $('gen-overall-fill');
 if (overallBar && overallFill) {
 if (total > 0 && st.status === 'generating') {
 overallBar.classList.remove('hidden');
 overallFill.style.width = `${Math.min(100, Math.round((saved / total) * 100))}%`;
 } else {
 overallBar.classList.add('hidden');
 }
 }
 sections.forEach((sec, idx) => {
 const gpf = $(`gpf-${sec.code}`);
 const gs = $(`gs-${sec.code}`);
 const gpb = $(`gpb-${sec.code}`);
 if (!gpf || !gs) return;
 gpb?.classList.remove('hidden');
 if (idx < saved) {
 gpf.style.width = '100%';
 gs.className = 'gen-status gs-done';
 gs.textContent = '✅ Saved';
 } else if (idx === saved && st.status === 'generating') {
 gpf.style.width = '55%';
 gs.className = 'gen-status gs-working';
 gs.textContent = '⏳ Processing…';
 } else if (st.status === 'generating') {
 gpf.style.width = '15%';
 gs.className = 'gen-status gs-waiting';
 gs.textContent = '⏳ Waiting';
 }
 });
}
async function pollReportGenerationDone({ plan, sections, onProgress }) {
 for (let i = 0; i < plan.maxPolls; i++) {
 await sleep(plan.pollMs);
 const st = await apiFetch('GET', `/reports/${state.reportId}/status`, null);
 const elapsedMs = (i + 1) * plan.pollMs;
 if (onProgress) onProgress(st, elapsedMs);
 if (isReportJobDone(st.status)) return st;
 if (st.status === 'failed') throw new Error(st.error_message || 'Generation failed');
 }
 await apiFetch('POST', `/reports/${state.reportId}/generation/cancel`, null).catch(() => {});
 throw new Error('Timed out waiting for generation');
}
async function generateSectionsBatch(sections) {
 const task = state.sections[sections[0].code].aiTask;
 const il = getInterferenceLevel();
 const maxMode = il === 'maximum';
 const refs = referenceDocumentIdsForRag();
 const bullets_by_section = {};
 for (const sec of sections) {
 const gs = $(`gs-${sec.code}`);
 const gpb = $(`gpb-${sec.code}`);
 const gpf = $(`gpf-${sec.code}`);
 gs.className = 'gen-status gs-working';
 gs.textContent = '🔍 Batch queued…' + (maxMode ? ' (max)' : '');
 gpb.classList.remove('hidden');
 gpf.style.width = '15%';
 bullets_by_section[sec.code] = state.sections[sec.code].bullets
 .split('\n').map(b => b.replace(/^[-•*]\s*/, '').trim()).filter(Boolean);
 }
 const primary = sections[0];
 const genBody = {
 template_id: primary.code,
 template_ids: sections.slice(1).map(s => s.code),
 bullets: bullets_by_section[primary.code] || [],
 bullets_by_section,
 mode: task,
 interference_level: il,
 retrieval_level: getRetrievalLevel(),
 force_regenerate: !useCacheEnabled(),
 strict_uploaded_only: strictUploadsOnlyEnabled(),
 };
 if (refs.length) genBody.reference_document_ids = refs;
 try {
 await apiFetch('POST', `/reports/${state.reportId}/generate`, genBody);
 const plan = generationPollPlan(sections.length, il);
 plan.sectionCount = sections.length;
 const stFinal = await pollReportGenerationDone({
 plan,
 sections,
 onProgress: (st, elapsedMs) => applyBatchGenerationProgress(st, sections, plan, elapsedMs),
 });
 $('gen-overall-progress')?.classList.add('hidden');
 let sectionPayloads = {};
 if (stFinal.status === 'partial') {
 const secResp = await apiFetch('GET', `/reports/${state.reportId}/sections`, null);
 sectionPayloads = secResp.sections || {};
 }
 for (const sec of sections) {
 $(`gpf-${sec.code}`).style.width = '100%';
 const gs = $(`gs-${sec.code}`);
 const hasText = !!(sectionPayloads[sec.code]?.text || '').trim();
 if (stFinal.status === 'partial' && !hasText) {
 gs.className = 'gen-status gs-error';
 gs.textContent = '❌ Failed';
 } else if (stFinal.status === 'partial') {
 gs.className = 'gen-status gs-done';
 gs.textContent = '✅ Done';
 } else {
 gs.className = 'gen-status gs-done';
 gs.textContent = '✅ Done';
 }
 $(`gpb-${sec.code}`).classList.add('hidden');
 }
 if (stFinal.status === 'partial' && stFinal.error_message) {
 console.warn('[batch]', stFinal.error_message);
 }
 } catch (err) {
 const msg = (err && err.message) ? String(err.message) : 'Error';
 const hint = msg === 'Failed to fetch'
 ? 'Server connection lost — check the backend is running at ' + API_BASE + ' and retry.'
 : msg;
 for (const sec of sections) {
 $(`gpf-${sec.code}`).style.width = '100%';
 const gs = $(`gs-${sec.code}`);
 gs.className = 'gen-status gs-error';
 gs.textContent = '❌ ' + hint;
 }
 }
}
async function generateSection(sec) {
 const task = state.sections[sec.code].aiTask;
 const gs = $(`gs-${sec.code}`);
 const gpb = $(`gpb-${sec.code}`);
 const gpf = $(`gpf-${sec.code}`);
 const modeLabel = { generate:'🔍 Retrieving…', proofread:'📝 Proofreading…', enhance:'⚙️ Enhancing…' }[task];
 const il = getInterferenceLevel();
 const maxMode = il === 'maximum' && task === 'generate';
 gs.className = 'gen-status gs-working';
 gs.textContent = modeLabel + (maxMode ? ' (max · est. 2–6 min)' : '');
 gpb.classList.remove('hidden');
 gpf.style.width = '25%';
 const bullets = state.sections[sec.code].bullets
 .split('\n').map(b => b.replace(/^[-•*]\s*/, '').trim()).filter(Boolean);
 const refs = referenceDocumentIdsForRag();
 const genBody = {
 template_id: sec.code,
 // If the user provided no notes, send an empty list. The backend will
 // persist a blank section so the user can fill it in immediately via the
 // inline editor on the results page, rather than generating generic prose.
 bullets,
 mode: task,
 interference_level: getInterferenceLevel(),
 retrieval_level: getRetrievalLevel(),
 // Backend expects force_regenerate=true to bypass cache.
 force_regenerate: !useCacheEnabled(),
 strict_uploaded_only: strictUploadsOnlyEnabled(),
 };
 if (refs.length) genBody.reference_document_ids = refs;
 try {
 await apiFetch('POST', `/reports/${state.reportId}/generate`, genBody);
 gpf.style.width = '60%';
 gs.textContent = '⏳ Processing…' + (maxMode ? ' Max mode: larger output — typically 2–6 min.' : '');
 const plan = generationPollPlan(1, il);
 plan.sectionCount = 1;
 const stFinal = await pollReportGenerationDone({
 plan,
 sections: [sec],
 onProgress: (st, elapsedMs) => {
 const sub = $('gen-step-subtitle');
 if (sub) sub.textContent = formatGenerationProgressSubtitle(st, plan, elapsedMs);
 const saved = Number(st.sections_saved) || 0;
 if (saved >= 1) gpf.style.width = '85%';
 },
 });
 gpf.style.width = '100%';
 if (stFinal.status === 'partial') {
 gs.className = 'gen-status gs-error';
 gs.textContent = '⚠️ ' + (stFinal.error_message || 'Partial completion');
 } else {
 gs.className = 'gen-status gs-done';
 gs.textContent = '✅ Done';
 }
 await sleep(300);
 gpb.classList.add('hidden');
 } catch (err) {
 gpf.style.width = '100%';
 gs.className = 'gen-status gs-error';
 const msg = (err && err.message) ? String(err.message) : 'Error';
 const hint = msg === 'Failed to fetch'
 ? 'Server connection lost — check the backend is running at ' + API_BASE + ' and retry.'
 : msg;
 gs.textContent = '❌ ' + hint;
 }
}
/* ── STEP 5: Results ─────────────────────────────────────────────────────── */
function formatAiModeBadge(result) {
 const level = interferenceFromSectionPayload(result) || getInterferenceLevel();
 const m = INTERFERENCE_MODES[level] || INTERFERENCE_MODES.medium;
 return `<span class="interference-result-badge" title="${escapeHtml(m.tooltip)}">${escapeHtml(m.badge)}</span>`;
}
// Build a single result card DOM node from current state. Splitting this out
// lets reRunSection() update one card without re-fetching/re-rendering all 35.
function buildResultCard(sec, result, isKept) {
 const card = document.createElement('div');
 card.id = 'result-card-' + sec.code;
 // Set data-code on every card variant so reRunSection / renderResultCard
 // can locate the exact card via .result-card[data-code="${code}"] without
 // depending on the (mode-dependent) inner ".code-${mode}" element. See the
 // comment in the generated-card branch below for the bug this prevents.
 card.setAttribute('data-code', sec.code);
 if (isKept) {
 card.className = 'result-card';
 card.innerHTML = `
 <div class="result-head mode-keep">
 <span class="code code-keep">${sec.code}</span>
 <strong>${sec.title}</strong>
 <span class="mode-badge mb-keep">Keep Blank</span>
 </div>
 <div class="result-body">
 <div class="result-text" style="color:var(--muted);font-style:italic">This section was left blank for manual writing.</div>
 </div>
 `;
 return card;
 }
 if (!result) {
 const aiLvlBadge = formatAiModeBadge(null);
 card.className = 'result-card mode-generate';
 card.id = 'result-card-' + sec.code;
 card.setAttribute('data-code', sec.code);
 card.innerHTML = `
 <div class="result-head mode-generate">
 <span class="code code-generate">${sec.code}</span>
 <strong>${sec.title}</strong>
 <span class="mode-badge mb-generate">Not generated</span>
 ${aiLvlBadge}
 <span class="conf-badge low">No AI output yet</span>
 <span class="edit-status" id="es-${sec.code}" title="Edit the text below — changes auto-save after you stop typing or press Cmd/Ctrl+S">✎ Editable</span>
 </div>
 <div class="result-body">
 <div style="margin:.25rem 0 .85rem;padding:.6rem .8rem;border-radius:8px;border:1px solid #c8ddf5;background:#f0f7ff;color:#1a508f;font-size:.82rem;line-height:1.35">
 <strong>No generated text for this section.</strong> Type below — your text saves automatically — or add notes in Configure and click <strong>Re-Generate</strong>.
 </div>
 <div
 class="result-text"
 id="rt-${sec.code}"
 contenteditable="plaintext-only"
 spellcheck="true"
 role="textbox"
 aria-multiline="true"
 aria-label="Editable text for section ${sec.code}: ${escapeAttr(sec.title)}"
 data-section-code="${sec.code}"
 ></div>
 <div class="result-actions">
 <button class="btn btn-outline btn-sm" onclick="copySection('${sec.code}')">📋 Copy</button>
 <button class="btn btn-primary btn-sm" onclick="reRunSection('${sec.code}','generate')">✍️ Re-Generate</button>
 <button class="btn btn-gold btn-sm" onclick="reRunSection('${sec.code}','proofread')">📝 Proofread</button>
 <button class="btn btn-purple btn-sm" onclick="reRunSection('${sec.code}','enhance')">⚙️ Enhance</button>
 </div>
 </div>
 `;
 return card;
 }
 const mode = result.mode || 'generate';
 const conf = (result.confidence * 100).toFixed(0);
 const confClass = result.confidence >= 0.5 ? '' : 'low';
 const cachedBadge = result.cached ? '<span class="cached-badge">⚡ Cached</span>' : '';
 const styleBadge = result.style_profile
 ? `<span class="style-badge">🎨 ${escapeHtml(result.style_profile.tone || 'formal')} style</span>` : '';
 const prov = Array.isArray(result.provenance) ? result.provenance : [];
 const modeBadges = { generate:'✍️ Generated', proofread:'📝 Proofread', enhance:'⚙️ Enhanced' };
 const modeBadgeClass = `mb-${mode}`;
 const codeClass = `code-${mode}`;
 const headClass = `mode-${mode}`;
 const aiLvlBadge = formatAiModeBadge(result);
 // Split proofread notes if present
 let mainText = result.text;
 let notesHtml = '';
 if (mode === 'proofread' && mainText.includes('[Editor notes:')) {
 const idx = mainText.indexOf('[Editor notes:');
 const notes = mainText.slice(idx).replace(/^\[Editor notes:\s*/,'').replace(/\]$/,'');
 mainText = mainText.slice(0, idx).trim();
 notesHtml = `<div class="editor-notes"><strong>📋 Editor Notes:</strong>${escapeHtml(notes)}</div>`;
 }
 const textHtml = highlightVerify(escapeHtml(mainText));
 const userBulletsRaw = String(state.sections?.[sec.code]?.bullets || '').trim();
 const hasUserNotes = userBulletsRaw.length > 0;
 const missingNotesBanner = (!isKept && !hasUserNotes) ? `
 <div style="margin:.25rem 0 .85rem;padding:.6rem .8rem;border-radius:8px;border:1px solid #f0d6b4;background:#fff7ea;color:#7a4a00;font-size:.82rem;line-height:1.35">
 <strong>Missing notes for this section.</strong> The system will not invent facts or pull property details from other uploaded documents.
 Paste your notes into the editable text box below (or edit directly), then click <strong>Re-Generate</strong>.
 </div>` : '';
 const citeChips = buildCitationChips(prov);
 const provHtml = prov.length ? `
 <details class="prov-list">
 <summary>📌 Source details — ${prov.length} retrieved passage(s)</summary>
 ${prov.map((p, idx) => `
 <div class="prov-item">
 <span style="font-weight:700;color:var(--navy)">[${idx + 1}]</span>
 <span>${escapeHtml(p.filename || 'Your upload')}</span>
 <code>relevance ${typeof p.score === 'number' ? p.score.toFixed(3) : p.score}</code>
 ${p.section_hint ? `<div style="width:100%;font-size:.76rem;color:var(--muted)">${escapeHtml(p.section_hint)}</div>` : ''}
 ${p.snippet_preview ? `<div style="width:100%;font-size:.74rem;font-style:italic;opacity:.9">${escapeHtml(p.snippet_preview)}</div>` : ''}
 </div>`).join('')}
 </details>` : '';
 const auditHtml = buildCitationAudit(result.citation_audit);
 const trx = result.ai_transparency;
 const note = trx && (trx.plain_language || trx.composition_note) ? String(trx.plain_language || trx.composition_note) : '';
 const transHtml = note ? `
 <div class="section-transparency">
 <strong>Mapping:</strong> ${escapeHtml(note)}
 </div>` : '';
 card.className = `result-card mode-${mode}`;
 // data-code is the canonical hook for targeted lookups (e.g. reRunSection).
 // Querying by .code-${mode} is unsafe — many cards share the same mode and
 // the first match would be returned, blanking the wrong card. Query by
 // .result-card[data-code="${code}"] (or, equivalently, #result-card-${code}).
 card.setAttribute('data-code', sec.code);
 // The status pill walks through ✎ Editable → ⏳ Saving… → ✓ Saved / ⚠ Save failed.
 // The literal copy and ordering are part of the spec — _setEditStatus()
 // is the only function that mutates this element.
 card.innerHTML = `
 <div class="result-head ${headClass}">
 <span class="code ${codeClass}">${sec.code}</span>
 <strong>${sec.title}</strong>
 ${cachedBadge}
 ${styleBadge}
 <span class="mode-badge ${modeBadgeClass}">${modeBadges[mode] || mode}</span>
 ${aiLvlBadge}
 <span class="conf-badge ${confClass}">Confidence: ${conf}%</span>
 <span class="edit-status" id="es-${sec.code}" title="Edit the text below — changes auto-save after you stop typing or press Cmd/Ctrl+S">✎ Editable</span>
 </div>
 <div class="result-body">
 ${missingNotesBanner}
 <!--
 Inline-editable section body.
 contenteditable="plaintext-only" preserves the LLM's line breaks via
 white-space: pre-wrap and prevents pasted HTML from breaking layout.
 bindResultTextEditing() wires up the debounced PATCH save flow on this
 node every time the card is rendered. data-section-code carries the
 section identifier for the save handler.
 -->
 <div
 class="result-text"
 id="rt-${sec.code}"
 contenteditable="plaintext-only"
 spellcheck="true"
 role="textbox"
 aria-multiline="true"
 aria-label="Editable text for section ${sec.code}: ${escapeAttr(sec.title)}"
 data-section-code="${sec.code}"
 >${textHtml}</div>
 ${notesHtml}
 ${transHtml}
 ${auditHtml}
 ${citeChips}
 ${provHtml}
 <div class="result-actions">
 <button class="btn btn-outline btn-sm" onclick="copySection('${sec.code}')">📋 Copy</button>
 <button class="btn btn-primary btn-sm" onclick="reRunSection('${sec.code}','generate')">✍️ Re-Generate</button>
 <button class="btn btn-gold btn-sm" onclick="reRunSection('${sec.code}','proofread')">📝 Proofread</button>
 <button class="btn btn-purple btn-sm" onclick="reRunSection('${sec.code}','enhance')">⚙️ Enhance</button>
 </div>
 </div>
 `;
 return card;
}
// Used in the aria-label above so a section title containing quotes does not
// break the attribute. We already use escapeHtml for inner-HTML, but quotes
// inside attributes are a separate concern.
function escapeAttr(s) {
 return String(s == null ? '' : s)
 .replace(/&/g, '&amp;')
 .replace(/"/g, '&quot;')
 .replace(/'/g, '&#39;')
 .replace(/</g, '&lt;')
 .replace(/>/g, '&gt;');
}
// Render or re-render exactly one card in place. Used after re-run / proofread /
// enhance so we don't re-fetch all sections and re-render the entire grid.
// We look the existing card up by data-code (preferred) and fall back to id
// for backward compatibility with any pre-existing card that lacks the
// attribute (e.g. left over from a prior session).
function findResultCard(code) {
 return document.querySelector(`.result-card[data-code="${code}"]`)
 || document.getElementById('result-card-' + code);
}
function renderResultCard(code) {
 const sec = RICS_SECTIONS.find(s => s.code === code);
 if (!sec) return;
 const result = state.results[code];
 const isKept = state.sections[code]?.action === 'keep';
 const newCard = buildResultCard(sec, result, isKept);
 const existing = findResultCard(code);
 if (existing && existing.parentNode) {
 existing.replaceWith(newCard);
 } else {
 $('results-grid').appendChild(newCard);
 }
 // Re-bind inline editing on every render — the previous DOM node has been
 // discarded by replaceWith, so its event listeners are gone.
 bindResultTextEditing(code);
 updateAggregateAiTransparency(state.results);
}
async function loadResults() {
 const data = await apiFetch('GET', `/reports/${state.reportId}/sections`, null);
 state.results = data.sections || {};
 // Extract style profile from any generated section
 const firstResult = Object.values(state.results).find(r => r.style_profile);
 if (firstResult?.style_profile) {
 showStyleProfile(firstResult.style_profile);
 }
 const grid = $('results-grid');
 grid.innerHTML = '';
 RICS_SECTIONS.forEach(sec => {
 const result = state.results[sec.code];
 const isKept = state.sections[sec.code].action === 'keep';
 grid.appendChild(buildResultCard(sec, result, isKept));
 });
 // Bind editors after every card is in the DOM (idempotent — bindResultTextEditing
 // tears down any previous listeners on the same node before attaching).
 RICS_SECTIONS.forEach(sec => bindResultTextEditing(sec.code));
 updateAggregateAiTransparency(state.results);
}
/* ── Inline section editing (debounced auto-save) ─────────────────────────────
 * Each .result-text is contenteditable="plaintext-only". On input, we debounce
 * 700 ms then PATCH /reports/{report_id}/sections/{section_code} with the new
 * text. blur and Cmd/Ctrl+S flush the debounce immediately. While a save is
 * in flight, a fresh keystroke aborts it via AbortController so only the
 * latest save wins. The status pill in the card head walks through
 * ✎ Editable → ⏳ Saving… → ✓ Saved / ⚠ Save failed — copy and order are
 * part of the spec, do not change.
 */
const _editSaveDebounceMs = 700;
const _editSaveTimers = Object.create(null); // section_code -> setTimeout id
const _editSaveAbortCtrls = Object.create(null); // section_code -> AbortController
function _setEditStatus(code, kind) {
 const el = document.getElementById('es-' + code);
 if (!el) return;
 el.classList.remove('is-saving', 'is-saved', 'is-error');
 if (kind === 'idle') { el.textContent = '✎ Editable'; el.classList.remove('is-saving','is-saved','is-error'); }
 if (kind === 'saving') { el.textContent = '⏳ Saving…'; el.classList.add('is-saving'); }
 if (kind === 'saved') { el.textContent = '✓ Saved'; el.classList.add('is-saved'); }
 if (kind === 'error') { el.textContent = '⚠ Save failed'; el.classList.add('is-error'); }
}
async function _saveSectionEdit(code) {
 if (!state.reportId) return;
 const node = document.getElementById('rt-' + code);
 if (!node) return;
 // Read current text from the live DOM (innerText preserves visible line
 // breaks; textContent would collapse them differently across browsers).
 const text = node.innerText;
 // Cancel any in-flight save for this section so only the latest wins.
 // The aborted call throws and is caught below — we deliberately do not
 // surface "AbortError" as a save-failure to the user.
 const previous = _editSaveAbortCtrls[code];
 if (previous) { try { previous.abort(); } catch {} }
 const ctrl = new AbortController();
 _editSaveAbortCtrls[code] = ctrl;
 _setEditStatus(code, 'saving');
 try {
 const updated = await apiFetch(
 'PATCH',
 `/reports/${encodeURIComponent(state.reportId)}/sections/${encodeURIComponent(code)}`,
 { text },
 {},
 { signal: ctrl.signal }
 );
 // Success: keep the in-memory state in sync so a subsequent reRunSection
 // sends the edited body as draft_paragraph instead of the original LLM text.
 if (updated && typeof updated === 'object') {
 state.results[code] = updated;
 } else {
 // Defensive: even if the server returned something unexpected, at least
 // update the text field so re-runs use the edit.
 state.results[code] = state.results[code] || {};
 state.results[code].text = text;
 }
 // Visual hint that the section has been touched.
 node.classList.add('edited');
 // Only mark "Saved" if this controller is still the latest one — if a
 // newer keystroke kicked off another save while we were awaiting, we
 // should not stomp its in-progress pill state.
 if (_editSaveAbortCtrls[code] === ctrl) {
 _setEditStatus(code, 'saved');
 }
 } catch (err) {
 if (err && (err.name === 'AbortError' || (err.message || '').toLowerCase().includes('aborted'))) {
 // Superseded by a newer save — leave the pill alone, the new request
 // owns the status now.
 return;
 }
 console.error('[saveSectionEdit]', code, err);
 if (_editSaveAbortCtrls[code] === ctrl) {
 _setEditStatus(code, 'error');
 // Surface a non-blocking toast so the failure is not silently swallowed.
 showToast(`Save failed for section ${code}: ${err.message || 'request failed'}`, 'err');
 }
 }
}
function bindResultTextEditing(code) {
 const node = document.getElementById('rt-' + code);
 if (!node) return;
 // The .result-text node is recreated on every render; we never need to
 // detach listeners from a previous instance because the previous instance
 // is already gone (replaceWith / innerHTML = '' before re-append).
 // We do, however, need to reset any timer/abort-controller keyed by code
 // so a stale debounce from the prior render does not fire against the
 // freshly painted node.
 if (_editSaveTimers[code]) { clearTimeout(_editSaveTimers[code]); delete _editSaveTimers[code]; }
 if (_editSaveAbortCtrls[code]) { try { _editSaveAbortCtrls[code].abort(); } catch {} delete _editSaveAbortCtrls[code]; }
 // Initial pill state.
 _setEditStatus(code, 'idle');
 node.addEventListener('input', () => {
 // Debounce: every keystroke pushes the save out by 700 ms. If a save is
 // already in flight (user is typing fast), abort it so the next save
 // carries the latest text.
 if (_editSaveTimers[code]) clearTimeout(_editSaveTimers[code]);
 if (_editSaveAbortCtrls[code]) {
 try { _editSaveAbortCtrls[code].abort(); } catch {}
 delete _editSaveAbortCtrls[code];
 }
 _setEditStatus(code, 'saving'); // reflect "user is typing → save coming"
 _editSaveTimers[code] = setTimeout(() => {
 delete _editSaveTimers[code];
 _saveSectionEdit(code);
 }, _editSaveDebounceMs);
 });
 // Blur flushes the pending debounce immediately.
 node.addEventListener('blur', () => {
 if (_editSaveTimers[code]) {
 clearTimeout(_editSaveTimers[code]);
 delete _editSaveTimers[code];
 _saveSectionEdit(code);
 }
 });
 // Cmd/Ctrl+S: flush + suppress the browser's "save page" dialog.
 node.addEventListener('keydown', (ev) => {
 const isSave = (ev.key === 's' || ev.key === 'S') && (ev.metaKey || ev.ctrlKey);
 if (!isSave) return;
 ev.preventDefault();
 ev.stopPropagation();
 if (_editSaveTimers[code]) {
 clearTimeout(_editSaveTimers[code]);
 delete _editSaveTimers[code];
 }
 _saveSectionEdit(code);
 });
}
function buildCitationAudit(audit) {
 if (!audit || typeof audit !== 'object') return '';
 const conf = typeof audit.confidence === 'number' ? Math.round(audit.confidence * 100) : null;
 const findings = typeof audit.findings === 'number' ? audit.findings : 0;
 const contradictions = Array.isArray(audit.contradictions) ? audit.contradictions : [];
 const dropped = Array.isArray(audit.dropped_claims) ? audit.dropped_claims : [];
 // Nothing meaningful to show (e.g. no API key / no findings) — stay quiet.
 if (conf === null && !findings && !contradictions.length && !dropped.length) return '';
 const clean = !contradictions.length && !dropped.length;
 const tone = clean
 ? 'border:1px solid #bfe3c6;background:#f1faf3;color:#1f6b35'
 : 'border:1px solid #f0d6b4;background:#fff7ea;color:#7a4a00';
 const icon = clean ? '✅' : '⚠️';
 const confStr = conf !== null ? `${conf}%` : 'n/a';
 let body = `<strong>${icon} Evidence audit:</strong> ${findings} grounded finding(s), `
 + `confidence ${confStr}.`;
 if (contradictions.length) {
 body += `<details style="margin-top:.4rem"><summary style="cursor:pointer">`
 + `${contradictions.length} contradiction(s) resolved</summary>`
 + `<ul style="margin:.35rem 0 0 1.1rem;list-style:disc">`
 + contradictions.map(c => `<li>${escapeHtml((c.element || '') + ': ' + (c.detail || ''))}`
 + (c.resolution ? ` <em>(${escapeHtml(c.resolution)})</em>` : '') + `</li>`).join('')
 + `</ul></details>`;
 }
 if (dropped.length) {
 body += `<details style="margin-top:.4rem"><summary style="cursor:pointer">`
 + `${dropped.length} unsupported claim(s) dropped</summary>`
 + `<ul style="margin:.35rem 0 0 1.1rem;list-style:disc">`
 + dropped.map(d => `<li>${escapeHtml(String(d))}</li>`).join('')
 + `</ul></details>`;
 }
 return `<div class="section-transparency" style="${tone}">${body}</div>`;
}
function buildCitationChips(prov) {
 if (!prov || !prov.length) return '';
 const chips = prov.map((p, i) => {
 const fn = p.filename || ('Document ' + (p.doc_id || '').slice(0, 8) + '…');
 const tip = [fn, p.section_hint || '', (p.snippet_preview || '').slice(0, 280)].filter(Boolean).join(' — ');
 return `<span class="cite-chip" title="${escapeHtml(tip)}"><kbd>${i + 1}</kbd> ${escapeHtml(fn)}</span>`;
 }).join('');
 return `<div class="cite-row"><span class="cite-label">Sources</span>${chips}</div>`;
}
function updateAggregateAiTransparency(sections) {
 const panel = $('ai-transparency-panel');
 const chipsEl = $('interference-aggregate-chips');
 const sumEl = $('ai-transparency-summary');
 if (!panel || !chipsEl || !sumEl) return;
 const vals = Object.values(sections || {}).filter(
 (s) => s && (s.ai_transparency || s.interference_level || s.composition_depth),
 );
 if (!vals.length) {
 panel.classList.add('hidden');
 return;
 }
 panel.classList.remove('hidden');
 const counts = { minimum: 0, medium: 0, maximum: 0 };
 vals.forEach((s) => {
 const il = interferenceFromSectionPayload(s) || 'maximum';
 if (counts[il] !== undefined) counts[il] += 1;
 else counts.medium += 1;
 });
 const parts = ['minimum', 'medium', 'maximum'].filter((k) => counts[k] > 0).map(
 (k) => `<span class="interference-result-badge">${INTERFERENCE_MODES[k].badge}: ${counts[k]}</span>`,
 );
 chipsEl.innerHTML = parts.join('') || '<span class="interference-result-badge">Mixed / legacy sections</span>';
 sumEl.innerHTML =
 `<p>Sections mapped from your past reports: <strong>${vals.length}</strong>. ` +
 `Breakdown by <strong>composition depth</strong> (as stored when each section ran).</p>` +
 `<p style="margin-top:.5rem;font-size:.78rem;opacity:.9">Retrieval is tenant-isolated. No third-party or shared “global” document corpus is used.</p>`;
}
function showToast(message, kind) {
 const el = $('app-toast');
 if (!el) return;
 el.textContent = message;
 el.className = 'app-toast toast-' + (kind || 'ok');
 el.classList.remove('hidden');
 clearTimeout(window.__toastTimer);
 window.__toastTimer = setTimeout(() => { el.classList.add('hidden'); }, 3200);
}
function escapeHtml(t) {
 return t.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;');
}
/* ── RAG Document Manager ──────────────────────────────────────────────── */
function _docMgrResolveTenant() {
 if (state.tenantId) return state.tenantId;
 const typed = ($('tenant-input') && $('tenant-input').value || '').trim();
 if (typed) { state.tenantId = typed; }
 return state.tenantId;
}
function formatBytes(n) {
 if (n == null || isNaN(n)) return '—';
 if (n < 1024) return `${n} B`;
 const units = ['KB', 'MB', 'GB'];
 let val = n / 1024, i = 0;
 while (val >= 1024 && i < units.length - 1) { val /= 1024; i++; }
 return `${val.toFixed(val >= 10 ? 0 : 1)} ${units[i]}`;
}
function formatDateTime(iso) {
 if (iso == null || iso === '') return '—';
 // v2 backend stores Unix epoch seconds (float); legacy app uses ISO strings.
 if (typeof iso === 'number' && Number.isFinite(iso)) {
 const d = new Date(iso > 1e12 ? iso : iso * 1000);
 if (isNaN(d.getTime())) return '—';
 return d.toLocaleString(undefined, {
 year: 'numeric', month: 'short', day: 'numeric',
 hour: '2-digit', minute: '2-digit',
 });
 }
 let s = String(iso).trim();
 if (/^\d+(\.\d+)?$/.test(s)) {
 const n = Number(s);
 const d = new Date(n > 1e12 ? n : n * 1000);
 if (!isNaN(d.getTime())) {
 return d.toLocaleString(undefined, {
 year: 'numeric', month: 'short', day: 'numeric',
 hour: '2-digit', minute: '2-digit',
 });
 }
 }
 // Server timestamps are UTC; SQLite often omits the offset in JSON.
 if (s && !/Z$|[+-]\d{2}:\d{2}$/.test(s)) s += 'Z';
 const d = new Date(s);
 if (isNaN(d.getTime())) return '—';
 return d.toLocaleString(undefined, {
 year: 'numeric',
 month: 'short',
 day: 'numeric',
 hour: '2-digit',
 minute: '2-digit',
 });
}
const DOC_STATUS_BADGE = {
 complete: { cls: 'b-ready', label: 'Ready' },
 processing: { cls: 'b-processing', label: 'Processing' },
 pending: { cls: 'b-pending', label: 'Pending' },
 failed: { cls: 'b-failed', label: 'Failed' },
};
function openDocManager() {
 const tid = _docMgrResolveTenant();
 $('doc-manager-modal').classList.remove('hidden');
 if (tid) {
 $('tenant-badge').textContent = `🔑 ${tid}`;
 $('tenant-badge').classList.add('visible');
 loadDocManagerList();
 } else {
 $('doc-manager-list').innerHTML =
 '<div class="docmgr-empty"><span class="icon">🔑</span>Enter your Tenant / User ID on the upload screen (or upload a file) to view your documents.</div>';
 $('docmgr-count').textContent = '';
 }
}
function closeDocManager() {
 $('doc-manager-modal').classList.add('hidden');
}
async function reingestAllDocuments() {
 const btn = $('docmgr-reingest');
 if (!confirm('Re-ingest every document in your library and every stored reference file on disk? '
 + 'Existing chunks are replaced. Documents with a report currently generating are skipped.')) {
 return;
 }
 const original = btn ? btn.textContent : '';
 if (btn) { btn.disabled = true; btn.textContent = '⟳ Re-ingesting…'; }
 try {
 const res = await apiFetch('POST', '/documents/reingest', {});
 showToast((res && res.detail) || `Re-queued ${res ? res.queued : 0} document(s).`, 'ok');
 await loadDocManagerList({ silent: true });
 let polls = 0;
 if (window.__docmgrPoll) clearInterval(window.__docmgrPoll);
 window.__docmgrPoll = setInterval(async () => {
 polls += 1;
 try {
 const data = await loadDocManagerList({ silent: true });
 const processing = (data && data.reingest_progress && data.reingest_progress.processing) || 0;
 const running = (data && data.reingest_running) || processing > 0;
 if (!running && !processing) {
 clearInterval(window.__docmgrPoll);
 window.__docmgrPoll = null;
 } else if (polls >= 360) {
 clearInterval(window.__docmgrPoll);
 window.__docmgrPoll = null;
 }
 } catch (_) {
 clearInterval(window.__docmgrPoll);
 window.__docmgrPoll = null;
 }
 }, 2000);
 } catch (err) {
 showToast('Re-ingest failed: ' + (err && err.message ? err.message : 'request failed'), 'err');
 } finally {
 if (btn) { btn.disabled = false; btn.textContent = original; }
 }
}
async function loadDocManagerList(options = {}) {
 const silent = options.silent === true;
 const listEl = $('doc-manager-list');
 const countEl = $('docmgr-count');
 if (!silent) {
 listEl.innerHTML = '<div class="docmgr-loading"><span class="docmgr-spinner"></span> Loading your documents…</div>';
 countEl.textContent = '';
 }
 try {
 const data = await apiFetch('GET', '/documents?limit=500', null);
 const docs = (data && data.documents) || [];
 if (!docs.length) {
 listEl.innerHTML =
 '<div class="docmgr-empty"><span class="icon">📭</span>No documents uploaded yet under this tenant.</div>';
 return;
 }
 const sessionSet = new Set(state.sessionDocIds || []);
 _docMgrNames = {};
 const rows = docs.map(d => {
 _docMgrNames[d.document_id] = d.filename || 'untitled';
 const badge = DOC_STATUS_BADGE[d.status] || DOC_STATUS_BADGE.pending;
 const isSession = sessionSet.has(d.document_id);
 const isStyle = d.document_purpose === 'style_corpus';
 const sessionTag = isSession
 ? '<span class="docmgr-badge b-session" title="Uploaded during this session">This session</span>'
 : '';
 const styleTag = isStyle
 ? '<span class="docmgr-badge b-style" title="Past report kept for style learning only">Style</span>'
 : '';
 const errAttr = d.error ? ` title="${escapeHtml(String(d.error))}"` : '';
 return `<tr id="docrow-${escapeHtml(d.document_id)}">
 <td>
 <div class="docmgr-fname">${escapeHtml(d.filename || 'untitled')}${sessionTag}${styleTag}</div>
 <div class="docmgr-id">${escapeHtml(d.document_id)}</div>
 </td>
 <td class="docmgr-meta">${formatDateTime(d.created_at)}</td>
 <td class="docmgr-meta">${formatBytes(d.file_size)}</td>
 <td><span class="docmgr-badge ${badge.cls}"${errAttr}>${badge.label}</span></td>
 <td style="text-align:right">
 <button type="button" class="docmgr-del" onclick="confirmDocDelete('${escapeHtml(d.document_id)}')">🗑 Delete</button>
 </td>
 </tr>`;
 }).join('');
 listEl.innerHTML = `<table class="docmgr-table">
 <thead><tr><th>Document</th><th>Uploaded</th><th>Size</th><th>Status</th><th></th></tr></thead>
 <tbody>${rows}</tbody>
 </table>`;
 const sessionCount = docs.filter(d => sessionSet.has(d.document_id)).length;
 let countText = `${docs.length} document${docs.length === 1 ? '' : 's'}`;
 if (sessionCount) countText += ` · ${sessionCount} from this session`;
 const prog = data.reingest_progress;
 if (prog && (data.reingest_running || prog.processing > 0)) {
 const done = (prog.complete || 0) + (prog.failed || 0);
 countText += ` · Re-ingesting ${done}/${prog.total}`;
 }
 countEl.textContent = countText;
 return data;
 } catch (err) {
 if (!silent) {
 listEl.innerHTML =
 `<div class="docmgr-empty"><span class="icon">⚠️</span>Could not load documents: ${escapeHtml(err.message || 'request failed')}</div>`;
 }
 return null;
 }
}
let _pendingDeleteDocId = null;
let _docMgrNames = {};
function confirmDocDelete(docId) {
 _pendingDeleteDocId = docId;
 const filename = _docMgrNames[docId] || 'this document';
 $('doc-delete-body').innerHTML = `
 <p style="margin:0 0 .8rem;line-height:1.5">
 Permanently delete <strong>${escapeHtml(filename)}</strong>?
 </p>
 <p style="margin:0 0 1.1rem;font-size:.82rem;color:var(--muted);line-height:1.5">
 This removes the file, its database record, and all vector embeddings for this document from the search index.
 Reports already generated are unaffected. <strong>This cannot be undone.</strong>
 </p>
 <div style="display:flex;justify-content:flex-end;gap:.6rem">
 <button type="button" class="btn-similar" onclick="cancelDocDelete()">Cancel</button>
 <button type="button" class="docmgr-del" id="doc-delete-confirm-btn" onclick="executeDocDelete()">🗑 Delete permanently</button>
 </div>`;
 $('doc-delete-modal').classList.remove('hidden');
}
function cancelDocDelete() {
 _pendingDeleteDocId = null;
 $('doc-delete-modal').classList.add('hidden');
}
async function executeDocDelete() {
 const docId = _pendingDeleteDocId;
 if (!docId) return;
 const confirmBtn = $('doc-delete-confirm-btn');
 if (confirmBtn) { confirmBtn.disabled = true; confirmBtn.innerHTML = '<span class="docmgr-spinner"></span> Deleting…'; }
 const row = $(`docrow-${docId}`);
 if (row) row.classList.add('row-deleting');
 try {
 const res = await apiFetch('DELETE', `/documents/${encodeURIComponent(docId)}`, null);
 cancelDocDelete();
 state.docIds = (state.docIds || []).filter(id => id !== docId);
 state.sessionDocIds = (state.sessionDocIds || []).filter(id => id !== docId);
 showToast((res && res.detail) || 'Document deleted.', 'ok');
 await loadDocManagerList();
 } catch (err) {
 cancelDocDelete();
 if (row) row.classList.remove('row-deleting');
 const msg = err.message || 'Delete failed';
 // 409 = still linked to a report (FK guard) — surface the server's guidance.
 showToast(msg.length > 160 ? msg.slice(0, 157) + '…' : msg, 'err');
 }
}
window._lastLibraryMatches = [];
function peerSectionsMap(excludeCode) {
 const o = {};
 RICS_SECTIONS.forEach(sec => {
 if (sec.code === excludeCode) return;
 const b = (state.sections[sec.code]?.bullets || '').trim();
 if (b) o[sec.code] = b;
 });
 return o;
}
async function runSimilarityCheck(code) {
 if (!state.tenantId) {
 showToast('Complete the upload step so your tenant ID is set, then try again.', 'warn');
 return;
 }
 saveBullets(code);
 const ta = $(`bullets-${code}`);
 const text = (ta && ta.value || '').trim();
 if (text.length < 8) {
 showToast('Add a bit more text first (at least one full line).', 'warn');
 return;
 }
 $('similar-modal').classList.remove('hidden');
 $('similar-modal-body').innerHTML = '<p class="similar-loading">Searching your indexed uploads and comparing other sections…</p>';
 try {
 const payload = {
 text,
 section_code: code,
 limit: 8,
 min_relevance_percent: 28,
 peer_sections: peerSectionsMap(code),
 };
 if (state.docId) {
 payload.exclude_document_ids = [state.docId];
 }
 const data = await apiFetch('POST', '/content/similar', payload);
 renderSimilarResults(data, code);
 } catch (e) {
 $('similar-modal-body').innerHTML = '<p class="similar-err">' + escapeHtml(e.message || String(e)) + '</p>';
 }
}
function closeSimilarityModal() {
 $('similar-modal').classList.add('hidden');
}
function renderSimilarResults(data, code) {
 const body = $('similar-modal-body');
 let html = '';
 if (data.message) {
 html += '<p class="similar-intro">' + escapeHtml(data.message) + '</p>';
 } else {
 html += '<p class="similar-intro">We found material that may overlap or repeat what you are typing. Choose how to keep your notes accurate and avoid outdated or duplicate guidance.</p>';
 if (state.docId) {
 html += '<p class="similar-intro" style="margin-top:-.5rem;font-size:.8rem">Library matches skip your <strong>current survey upload</strong> so you mainly see other reference files (guidance, old reports, regulations). Upload those as extra documents to compare against.</p>';
 }
 }
 const drafts = data.draft_overlaps || [];
 const lib = data.library_matches || [];
 window._lastLibraryMatches = lib;
 window._lastDraftOverlaps = drafts;
 if (!drafts.length && !lib.length) {
 html += '<p class="similar-empty">No strong matches in other sections or your indexed documents. You can close and continue.</p>';
 body.innerHTML = html;
 return;
 }
 if (drafts.length) {
 html += '<h4 class="similar-h4">Overlaps with other section notes</h4>';
 drafts.forEach((d, i) => {
 html += '<div class="similar-card draft-card" id="sdraft-' + i + '">';
 html += '<div class="similar-meta">Section <strong>' + escapeHtml(d.other_section_code) + '</strong> · ' + escapeHtml(d.overlap_kind) + ' · similarity ' + Math.round(d.similarity * 100) + '%</div>';
 html += '<div class="similar-cols"><div><span class="lbl">This section</span><pre class="similar-pre">' + escapeHtml(d.your_preview) + '</pre></div>';
 html += '<div><span class="lbl">Other section</span><pre class="similar-pre">' + escapeHtml(d.other_preview) + '</pre></div></div>';
 html += '<div class="similar-actions">';
 html += '<button type="button" class="btn-sm" onclick="goToPeerSection(\'' + d.other_section_code + '\')">Open other section</button> ';
 html += '<button type="button" class="btn-sm" onclick="appendPeerWording(\'' + code + '\',' + i + ')">Add other section as new line</button> ';
 html += '<button type="button" class="btn-sm" onclick="replaceNotesWithPeerSection(\'' + code + '\',' + i + ')">Replace notes with other section</button> ';
 html += '<button type="button" class="btn-sm btn-muted" onclick="dismissSimilarCard(\'sdraft-' + i + '\')">Keep both</button>';
 html += '</div></div>';
 });
 }
 if (lib.length) {
 html += '<h4 class="similar-h4">Similar passages in uploaded documents</h4>';
 lib.forEach((m, i) => {
 html += '<div class="similar-card lib-card" id="slib-' + i + '">';
 html += '<div class="similar-meta">' + escapeHtml(m.filename || 'Your upload') + ' · relevance ' + escapeHtml(String(m.relevance_percent)) + '%</div>';
 html += '<pre class="similar-pre">' + escapeHtml(m.snippet) + '</pre>';
 html += '<div class="similar-actions">';
 html += '<button type="button" class="btn-sm" onclick="appendLibraryExcerpt(\'' + code + '\',' + i + ')">Add excerpt as new line</button> ';
 html += '<button type="button" class="btn-sm" onclick="replaceNotesWithExcerpt(\'' + code + '\',' + i + ')">Replace notes with excerpt</button> ';
 html += '<button type="button" class="btn-sm btn-muted" onclick="dismissSimilarCard(\'slib-' + i + '\')">Keep my notes</button> ';
 html += '<button type="button" class="btn-sm btn-danger" onclick="removeLibraryDocument(\'' + m.document_id + '\')">Remove file from library</button>';
 html += '</div></div>';
 });
 }
 body.innerHTML = html;
}
function appendPeerWording(code, idx) {
 const d = window._lastDraftOverlaps && window._lastDraftOverlaps[idx];
 if (!d) return;
 const ta = $(`bullets-${code}`);
 const line = (d.other_preview || '').replace(/\n+/g, ' ').trim();
 const add = line + ' [From section ' + d.other_section_code + ']';
 ta.value = (ta.value.replace(/\s+$/, '') + (ta.value.trim() ? '\n' : '') + add);
 saveBullets(code);
 showToast('Added wording from section ' + d.other_section_code + '.', 'ok');
}
function replaceNotesWithPeerSection(code, idx) {
 const d = window._lastDraftOverlaps && window._lastDraftOverlaps[idx];
 if (!d) return;
 if (!confirm('Replace all notes in this section with the matched text from section ' + d.other_section_code + '?')) return;
 $(`bullets-${code}`).value = (d.other_preview || '').trim();
 saveBullets(code);
 showToast('Notes replaced from section ' + d.other_section_code + '.', 'ok');
 closeSimilarityModal();
}
function appendLibraryExcerpt(code, idx) {
 const m = window._lastLibraryMatches && window._lastLibraryMatches[idx];
 if (!m) return;
 const ta = $(`bullets-${code}`);
 const cite = (m.filename || 'upload').replace(/\s+/g, ' ');
 const line = (m.snippet || '').replace(/\n+/g, ' ').trim();
 const add = line + ' [Ref: ' + cite + ']';
 ta.value = (ta.value.replace(/\s+$/, '') + (ta.value.trim() ? '\n' : '') + add);
 saveBullets(code);
 showToast('Added a referenced line from your library.', 'ok');
}
function replaceNotesWithExcerpt(code, idx) {
 const m = window._lastLibraryMatches && window._lastLibraryMatches[idx];
 if (!m) return;
 if (!confirm('Replace all notes in this section with the library excerpt?')) return;
 $(`bullets-${code}`).value = (m.snippet || '').trim();
 saveBullets(code);
 showToast('Notes replaced with library excerpt.', 'ok');
 closeSimilarityModal();
}
async function removeLibraryDocument(docId) {
 if (!docId) return;
 if (!confirm('Remove this file from your library? Indexed passages are deleted. This is blocked if a report still uses the file.')) return;
 try {
 await apiFetch('DELETE', '/documents/' + encodeURIComponent(docId), null);
 showToast('Document removed from library.', 'ok');
 closeSimilarityModal();
 } catch (e) {
 showToast(e.message || String(e), 'err');
 }
}
function dismissSimilarCard(id) {
 const el = document.getElementById(id);
 if (el) el.classList.add('hidden');
}
function goToPeerSection(code) {
 closeSimilarityModal();
 const card = $(`sc-${code}`);
 if (card) {
 $(`sb-${code}`).classList.add('open');
 card.scrollIntoView({ behavior: 'smooth', block: 'center' });
 }
}
function highlightVerify(text) {
 return text.replace(/\[VERIFY[^\]]*\]/g, m => `<span class="verify-tag">${m}</span>`);
}
async function copySection(code) {
 const el = $(`rt-${code}`);
 if (!el) return;
 try {
 await navigator.clipboard.writeText(el.innerText);
 const btns = el.closest('.result-body').querySelectorAll('button');
 const btn = btns[0];
 const orig = btn.textContent;
 btn.textContent = '✅ Copied!';
 setTimeout(() => { btn.textContent = orig; }, 1500);
 } catch {}
}
async function reRunSection(code, mode) {
 const sec = RICS_SECTIONS.find(s => s.code === code);
 if (!sec) {
 console.warn('[reRunSection] unknown section code', code);
 return;
 }
 if (!state.reportId) {
 alert('No report in progress.');
 return;
 }
 // ✓ Correct & intentional: bullets are read fresh from state.sections[code]
 // every time the user re-runs a section. If the user edits the bullets in
 // step 3 (configure) and then comes back to the results page and re-runs,
 // those updated bullets are picked up here. Do NOT cache bullets at card
 // build time — that would make this read stale. (frontend audit, Issue 4.)
 const bullets = (state.sections[code]?.bullets || '')
 .split('\n').map(b => b.replace(/^[-•*]\s*/, '').trim()).filter(Boolean);
 const modeLabels = { generate:'✍️ Generating…', proofread:'📝 Proofreading…', enhance:'⚙️ Enhancing…' };
 // Look the card up by data-code (preferred) with an id fallback for
 // backward compatibility. Querying via .result-card .code-${mode} would
 // return the FIRST card sharing this mode and produce a wrong-card-blank
 // flash when several sections share a mode. (frontend audit, Issue 2.)
 const card = findResultCard(code);
 if (!card) {
 console.warn('[reRunSection] result card not found — section may not be generated yet', code);
 alert('This section is not in the results list yet. Generate the report first, then use Proofread / Enhance.');
 return;
 }
 const actions = card.querySelector('.result-actions');
 const btns = actions?.querySelectorAll('button');
 if (btns) btns.forEach(b => { b.disabled = true; });
 const statusEl = document.createElement('div');
 statusEl.className = 'alert alert-info';
 statusEl.style.marginTop = '.6rem';
 statusEl.textContent = modeLabels[mode] || 'Processing…';
 card.querySelector('.result-body').appendChild(statusEl);
 const refs = referenceDocumentIdsForRag();
 const rerunBody = {
 template_id: code,
 bullets: bullets.length ? bullets : [`[Section ${code}: ${sec.title}]`],
 mode: mode,
 interference_level: getInterferenceLevel(),
 retrieval_level: getRetrievalLevel(),
 // Respect the user's cache toggle. When cache is enabled, re-run can still
 // hit cache if inputs are identical (useful for quick restores). Turn cache
 // off to guarantee a fresh run.
 force_regenerate: !useCacheEnabled(),
 strict_uploaded_only: strictUploadsOnlyEnabled(),
 };
 if (refs.length) rerunBody.reference_document_ids = refs;
 if (mode === 'generate') {
 const prev = state.results[code];
 if (prev && prev.text) {
 const bodyOnly = String(prev.text).split('\n\n[Editor notes:')[0].trim();
 if (bodyOnly) rerunBody.draft_paragraph = bodyOnly;
 }
 }
 try {
 await apiFetch('POST', `/reports/${state.reportId}/generate`, rerunBody);
 let done = false;
 for (let i = 0; i < 40; i++) {
 await sleep(2000);
 const st = await apiFetch('GET', `/reports/${state.reportId}/status`, null);
 if (isReportJobDone(st.status)) { done = true; break; }
 if (st.status === 'failed') throw new Error(st.error_message || 'Generation failed on server');
 }
 if (!done) throw new Error('Timed out waiting for completion');
 const data = await apiFetch('GET', `/reports/${state.reportId}/sections`, null);
 const result = (data.sections || {})[code];
 if (result) {
 state.results[code] = result;
 if (result.style_profile) showStyleProfile(result.style_profile);
 }
 statusEl.remove();
 // Targeted single-card update (frontend audit, Issue 3). loadResults()
 // would otherwise re-fetch and re-render all sections (35+ cards on a
 // Level 3 report) just to refresh one card. renderResultCard() builds a
 // single replacement node from state.results[code] — same visual output
 // as loadResults() for that one card — and swaps it in place via
 // findResultCard(code).replaceWith(...). The other cards are untouched.
 renderResultCard(code);
 const doneLabel = { generate: 'Re-generated', proofread: 'Proofread', enhance: 'Enhanced' };
 showToast((doneLabel[mode] || 'Updated') + ': section ' + code + ' is ready.', 'ok');
 } catch (err) {
 console.error('[reRunSection]', mode, code, err);
 statusEl.className = 'alert alert-error';
 statusEl.textContent = '❌ ' + (err.message || 'Request failed');
 showToast(err.message || 'Request failed', 'err');
 if (btns) btns.forEach(b => { b.disabled = false; });
 }
}
/* ── Style Profile Display ───────────────────────────────────────────────── */
function showStyleProfile(profile) {
 state.styleProfile = profile;
 const panel = $('style-profile-panel');
 panel.classList.remove('hidden');
 const chips = [
 { label: 'Tone', value: profile.tone || 'formal' },
 { label: 'Formality', value: profile.formality_level || 'professional' },
 { label: 'Sentence Style', value: profile.avg_sentence_complexity || 'moderate' },
 { label: 'Vocabulary', value: profile.vocabulary_level || 'technical' },
 ];
 $('style-chips').innerHTML = chips.map(c => `
 <div class="style-chip">
 <div class="sc-label">${c.label}</div>
 <div class="sc-value">${c.value}</div>
 </div>`).join('');
 $('style-summary').textContent = profile.writing_style_summary || '';
 const phrases = profile.common_phrases || [];
 $('style-phrases').innerHTML = phrases.length
 ? `<div style="font-size:.72rem;opacity:.8;margin-right:.3rem">Common phrases:</div>` +
 phrases.slice(0, 6).map(p => `<span class="style-phrase">"${p}"</span>`).join('')
 : '';
}
/* ── Download Report ─────────────────────────────────────────────────────── */
/* ── Download DOCX ─────────────────────────────────────────────────────── */
$('btn-download-docx').addEventListener('click', async () => {
 if (!state.reportId) { alert('No report available yet. Generate sections first.'); return; }
 const btn = $('btn-download-docx');
 btn.disabled = true;
 btn.textContent = '⏳ Building…';
 try {
 if (!state.token) { alert('Log in to download the report.'); return; }
 const res = await fetch(apiUrl(`/reports/${state.reportId}/export?format=docx`), {
 method: 'GET',
 headers: buildAuthHeaders(),
 });
 if (res.status === 401) { handleAuthExpired(); throw new Error('Your session expired. Please log in again.'); }
 if (!res.ok) {
 const data = await res.json().catch(() => ({}));
 const detail = data && data.detail;
 throw new Error(typeof detail === 'string' ? detail : `HTTP ${res.status}`);
 }
 const blob = await res.blob();
 const url = URL.createObjectURL(blob);
 const a = document.createElement('a');
 a.href = url;
 const cd = res.headers.get('Content-Disposition') || '';
 const match = cd.match(/filename="([^"]+)"/);
 a.download = match ? match[1] : `RICS_Report_${Date.now()}.docx`;
 document.body.appendChild(a);
 a.click();
 document.body.removeChild(a);
 URL.revokeObjectURL(url);
 } catch (err) {
 alert('Download failed: ' + err.message);
 } finally {
 btn.disabled = false;
 btn.textContent = '⬇ Download DOCX';
 }
});
$('btn-download').addEventListener('click', () => {
 const lines = [];
 lines.push('RICS SURVEY REPORT');
 lines.push('Generated by Report Genius AI');
 if (state.styleProfile) {
 lines.push(`Writing Style: ${state.styleProfile.tone} | ${state.styleProfile.formality_level}`);
 }
 lines.push('='.repeat(50));
 lines.push('');
 RICS_SECTIONS.forEach(sec => {
 const result = state.results[sec.code];
 lines.push(`${sec.code}. ${sec.title}`);
 lines.push('-'.repeat(40));
 if (state.sections[sec.code]?.action === 'keep') {
 lines.push('[LEFT BLANK FOR MANUAL WRITING]');
 } else if (result) {
 lines.push(result.text);
 if (result.mode && result.mode !== 'generate') lines.push(`[AI Mode: ${result.mode}]`);
 } else {
 lines.push('[NOT GENERATED]');
 }
 lines.push('');
 });
 const blob = new Blob([lines.join('\n')], { type: 'text/plain' });
 const a = document.createElement('a');
 a.href = URL.createObjectURL(blob);
 a.download = `RICS_Report_${Date.now()}.txt`;
 a.click();
});
/* ── Restart ─────────────────────────────────────────────────────────────── */
$('btn-restart').addEventListener('click', () => {
 // Preserve the authenticated identity (token + tenant) across a new report.
 Object.assign(state, { docId:null, docIds:[], reportId:null, file:null, files:[], sections:{}, results:{}, styleProfile:null });
 fileInput.value = '';
 $('file-display').classList.add('hidden');
 zone.classList.remove('has-file','drag-over');
 $('btn-upload').disabled = true;
 $('style-profile-panel').classList.add('hidden');
 hideAlert('upload-alert');
 if (state.tenantId) {
 const ti = $('tenant-input');
 if (ti) { ti.value = state.tenantId; ti.readOnly = true; }
 }
 showStep(1);
});
showStep(1);
/* ── Theme Toggle ─────────────────────────────────────────────────────────── */
(function initTheme() {
 const saved = localStorage.getItem('rg-theme');
 const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
 if (saved === 'dark' || (!saved && prefersDark)) applyTheme('dark');
 else applyTheme('light');
})();
function applyTheme(mode) {
 const html = document.documentElement;
 const icon = document.getElementById('theme-icon');
 const label = document.getElementById('theme-label');
 if (mode === 'dark') {
 html.classList.add('dark');
 if (icon) icon.textContent = '🌧️';
 if (label) label.textContent = 'Dark';
 } else {
 html.classList.remove('dark');
 if (icon) icon.textContent = '☀️';
 if (label) label.textContent = 'Light';
 }
 localStorage.setItem('rg-theme', mode);
}
function toggleTheme() {
 const isDark = document.documentElement.classList.contains('dark');
 applyTheme(isDark ? 'light' : 'dark');
}
</script>
</body>
</html>