/* ============================================================
   PDF Extractor - UI styles
   Two themes (light default, dark) driven by html[data-theme].
   Neutral surfaces + a violet accent. Component class names are
   unchanged so all JS hooks keep working; only the styling is new.
   ============================================================ */

:root {
  --radius-lg: 18px;
  --radius: 13px;
  --radius-sm: 9px;
  --mono: "SFMono-Regular", "Consolas", "Liberation Mono", Menlo, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --t-fast: 0.14s ease;
  --t: 0.22s cubic-bezier(0.2, 0.6, 0.2, 1);
  --accent-contrast: #ffffff;
}

/* ---------------- LIGHT (default) ---------------- */
html[data-theme="light"] {
  --bg: #f3f3f7;
  --bg-glow-1: rgba(124, 58, 237, 0.08);
  --bg-glow-2: rgba(217, 70, 239, 0.05);

  --surface: #ffffff;
  --surface-2: #ffffff;
  --surface-3: #f2f2f6;
  --surface-raise: #ffffff;

  --border: #e5e5ec;
  --border-soft: #eeeef3;
  --border-strong: #d6d6df;

  --text: #1a1a24;
  --text-dim: #585866;
  --text-faint: #8a8a99;

  --accent: #7c3aed;
  --accent-strong: #6d28d9;
  --accent-2: #9333ea;
  --accent-soft: rgba(124, 58, 237, 0.1);
  --accent-ring: rgba(124, 58, 237, 0.3);

  --green: #0e9f6e;
  --green-soft: rgba(14, 159, 110, 0.12);
  --green-line: rgba(14, 159, 110, 0.32);
  --amber: #c2790f;
  --amber-soft: rgba(194, 121, 15, 0.12);
  --amber-line: rgba(194, 121, 15, 0.32);
  --red: #e0455c;
  --red-soft: rgba(224, 69, 92, 0.1);
  --red-line: rgba(224, 69, 92, 0.32);
  --teal: #0ea5b7;

  --shadow: 0 16px 40px -22px rgba(30, 25, 50, 0.26);
  --shadow-sm: 0 1px 2px rgba(30, 25, 50, 0.06), 0 2px 6px rgba(30, 25, 50, 0.05);
  --mark: #ffd84d;
  --mark-active: #ffc21f;
  --mark-text: #3a2c00;
}

/* ---------------- DARK ---------------- */
html[data-theme="dark"] {
  --bg: #0c0c11;
  --bg-glow-1: rgba(139, 92, 246, 0.14);
  --bg-glow-2: rgba(217, 70, 239, 0.07);

  --surface: #16161e;
  --surface-2: #20202b;
  --surface-3: #111117;
  --surface-raise: #24242f;

  --border: #2a2a36;
  --border-soft: #1f1f29;
  --border-strong: #3a3a48;

  --text: #ededf3;
  --text-dim: #a2a2b2;
  --text-faint: #6a6a79;

  --accent: #8b5cf6;
  --accent-strong: #7c3aed;
  --accent-2: #a855f7;
  --accent-soft: rgba(139, 92, 246, 0.18);
  --accent-ring: rgba(139, 92, 246, 0.45);

  --green: #34d399;
  --green-soft: rgba(52, 211, 153, 0.15);
  --green-line: rgba(52, 211, 153, 0.38);
  --amber: #fbbf24;
  --amber-soft: rgba(251, 191, 36, 0.15);
  --amber-line: rgba(251, 191, 36, 0.4);
  --red: #fb7185;
  --red-soft: rgba(251, 113, 133, 0.14);
  --red-line: rgba(251, 113, 133, 0.4);
  --teal: #2dd4bf;

  --shadow: 0 18px 44px -20px rgba(0, 0, 0, 0.72);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35);
  --mark: #fbbf24;
  --mark-active: #ffd86b;
  --mark-text: #1a1205;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1100px 560px at 88% -12%, var(--bg-glow-1), transparent 60%),
    radial-gradient(820px 480px at -8% 112%, var(--bg-glow-2), transparent 55%),
    var(--bg);
  background-attachment: fixed;
  transition: background-color var(--t), color var(--t);
}

h1, h2, h3 { margin: 0; font-weight: 680; letter-spacing: -0.015em; }
::selection { background: var(--accent-soft); }

/* ---------------- Header ---------------- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 26px;
  border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  color: var(--accent-contrast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 18px -6px var(--accent-ring), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.brand-mark svg { width: 24px; height: 24px; }
.brand-text h1 { font-size: 19px; line-height: 1.1; }
.tagline { margin: 3px 0 0; font-size: 12.5px; color: var(--text-dim); }

.header-actions { display: flex; align-items: center; gap: 10px; }

/* theme toggle */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
  box-shadow: var(--shadow-sm);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.theme-toggle:active { transform: translateY(0); }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.theme-toggle svg { width: 19px; height: 19px; }
.theme-toggle .icon-sun, .theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.offline-pill {
  font-size: 12px; font-weight: 600; color: var(--green);
  background: var(--green-soft); border: 1px solid var(--green-line);
  padding: 5px 12px; border-radius: 999px;
}

/* ---------------- Layout ---------------- */
.layout {
  display: grid;
  grid-template-columns: 330px 1fr;
  gap: 26px;
  padding: 26px;
  flex: 1;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

/* ---------------- Sidebar ---------------- */
.sidebar { display: flex; flex-direction: column; gap: 18px; }
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 90px;
}
.panel-title {
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); margin-bottom: 16px;
}

.setting { margin-bottom: 18px; }
.setting:last-child { margin-bottom: 0; }
.setting-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.setting-row > div { min-width: 0; }
.setting-label { display: block; font-size: 13.5px; font-weight: 650; margin-bottom: 8px; color: var(--text); }
.setting-row .setting-label { margin-bottom: 3px; }
.hint { margin: 5px 0 0; font-size: 11.5px; color: var(--text-faint); line-height: 1.5; }

/* accordions (native <details>) */
.accordion { border-top: 1px solid var(--border-soft); }
.accordion + .accordion { margin-top: 0; }
.accordion-summary {
  list-style: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 15px 2px;
  font-size: 13px; font-weight: 650; color: var(--text);
  user-select: none;
}
.accordion-summary::-webkit-details-marker { display: none; }
.accordion-summary:hover { color: var(--accent); }
.accordion-chevron { color: var(--text-faint); transition: transform var(--t); flex: none; }
.accordion[open] > .accordion-summary .accordion-chevron { transform: rotate(180deg); }
.accordion-body { padding: 2px 0 8px; }
.accordion-body .setting:last-child { margin-bottom: 0; }

.segmented {
  display: flex;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 4px;
  gap: 4px;
}
.seg {
  flex: 1; border: none; background: transparent; color: var(--text-dim);
  font: inherit; font-size: 13px; font-weight: 650; padding: 8px;
  border-radius: 8px; cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
}
.seg:hover { color: var(--text); }
.seg.active {
  background: linear-gradient(145deg, var(--accent), var(--accent-strong));
  color: var(--accent-contrast);
  box-shadow: 0 4px 12px -3px var(--accent-ring);
}

.select {
  width: 100%; background: var(--surface-3); border: 1px solid var(--border);
  color: var(--text); font: inherit; font-size: 14px; padding: 10px 12px;
  border-radius: var(--radius-sm); cursor: pointer;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.select:hover { border-color: var(--border-strong); }
.select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* switch */
.switch { position: relative; display: inline-block; width: 46px; height: 26px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; inset: 0; cursor: pointer; background: var(--border);
  border-radius: 999px; transition: background var(--t); border: 1px solid var(--border-strong);
}
.slider::before {
  content: ""; position: absolute; height: 20px; width: 20px; left: 2px; top: 2px;
  background: #fff; border-radius: 50%; box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  transition: transform var(--t);
}
.switch input:checked + .slider {
  background: linear-gradient(145deg, var(--accent), var(--accent-strong)); border-color: transparent;
}
.switch input:checked + .slider::before { transform: translateX(20px); }
.switch input:focus-visible + .slider { box-shadow: 0 0 0 3px var(--accent-ring); }
.switch input:disabled + .slider { opacity: 0.45; cursor: not-allowed; }

/* a feature that isn't available in this build */
.setting-row.is-unavailable .setting-label { color: var(--text-dim); }
.hw-note { color: var(--accent); }
.hw-note strong { color: var(--accent); font-weight: 700; }

/* ---------------- Work area ---------------- */
.work { min-width: 0; display: flex; flex-direction: column; gap: 18px; }

.toolbar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; position: sticky; top: 86px; z-index: 10;
  box-shadow: var(--shadow);
}
.search-wrap { position: relative; flex: 1; min-width: 220px; display: flex; align-items: center; }
.search-icon { position: absolute; left: 12px; color: var(--text-faint); pointer-events: none; }
.search-input {
  width: 100%; background: var(--surface-3); border: 1px solid var(--border); color: var(--text);
  font: inherit; font-size: 14px; padding: 10px 12px 10px 36px; border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.search-input::placeholder { color: var(--text-faint); }
.search-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-count { position: absolute; right: 12px; font-size: 12px; color: var(--text-faint); font-variant-numeric: tabular-nums; }
.toolbar-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.export-group { display: flex; gap: 3px; background: var(--surface-3); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 3px; }
.add-more { display: inline-flex; align-items: center; }

/* buttons */
.btn {
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
  font: inherit; font-size: 13px; font-weight: 650; padding: 9px 14px;
  border-radius: var(--radius-sm); cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), opacity var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
  box-shadow: var(--shadow-sm);
}
.btn:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-sm { padding: 6px 11px; font-size: 12px; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-dim); box-shadow: none; }
.btn-ghost:hover { background: var(--accent-soft); color: var(--accent); border-color: transparent; transform: none; }
.export-group .btn-ghost { border: none; }
.btn-danger { color: var(--red); border-color: var(--red-line); background: transparent; box-shadow: none; }
.btn-danger:hover { background: var(--red-soft); border-color: var(--red); transform: none; }

/* The HTML `hidden` attribute must always win over display rules below. */
[hidden] { display: none !important; }

/* empty state == centred dropzone hero + auto-detect */
.empty-state { display: flex; flex-direction: column; gap: 18px; }

.dropzone {
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 60px 28px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--t), background var(--t), transform var(--t-fast), box-shadow var(--t);
  color: var(--text-dim);
  background:
    radial-gradient(130% 130% at 50% -10%, var(--accent-soft), transparent 70%),
    var(--surface);
  box-shadow: var(--shadow);
}
.dropzone:hover { border-color: var(--accent); }
.dropzone:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.dropzone.dragover { border-color: var(--accent); background: var(--accent-soft); transform: scale(1.008); box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow); }
.dz-icon-wrap {
  width: 66px; height: 66px; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 20px; color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent-ring);
}
.dz-primary { margin: 0; font-weight: 680; color: var(--text); font-size: 18px; letter-spacing: -0.01em; }
.dz-secondary { margin: 7px 0 0; font-size: 13.5px; color: var(--text-dim); }
.dz-link { color: var(--accent); font-weight: 650; }

.dz-extra { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.dz-extra-hint { max-width: 480px; text-align: center; margin: 0; }
#suggestResult { width: 100%; max-width: 520px; margin: 4px auto 0; text-align: left; }

/* files */
.files-container { display: flex; flex-direction: column; gap: 18px; }
.file-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow);
}
.file-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 15px 18px; border-bottom: 1px solid var(--border-soft);
}
.file-meta { display: flex; align-items: center; gap: 11px; min-width: 0; }
.file-name { font-size: 15px; font-weight: 650; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-head-right { display: flex; align-items: center; gap: 12px; flex: none; }
.status-text { font-size: 12.5px; color: var(--text-dim); font-weight: 550; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--text-faint); flex: none; }
.status-dot.processing { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); animation: pulse 1.2s infinite; }
.status-dot.done { background: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.status-dot.error { background: var(--red); box-shadow: 0 0 0 4px var(--red-soft); }
.status-dot.cancelled { background: var(--amber); box-shadow: 0 0 0 4px var(--amber-soft); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.progress-row { display: flex; align-items: center; gap: 13px; padding: 13px 18px; }
.progress-track { flex: 1; height: 8px; background: var(--surface-3); border-radius: 999px; overflow: hidden; box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.12); }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent-strong), var(--accent)); border-radius: 999px; transition: width 0.3s ease; }
.progress-label { font-size: 12px; color: var(--text-dim); font-variant-numeric: tabular-nums; flex: none; }

.file-error {
  margin: 0 18px 15px; padding: 11px 13px; background: var(--red-soft);
  border: 1px solid var(--red-line); border-radius: var(--radius-sm); color: var(--red); font-size: 13px;
}

.pages { display: flex; flex-direction: column; gap: 13px; padding: 5px 18px 18px; }

/* page card */
.page-card {
  border: 1px solid var(--border-soft); border-radius: var(--radius);
  background: var(--surface-3); overflow: hidden;
}
.page-head { display: flex; align-items: center; gap: 10px; padding: 10px 13px; border-bottom: 1px solid var(--border-soft); }
.page-num { font-size: 13px; font-weight: 700; color: var(--text-dim); }
.page-spacer { flex: 1; }
.badge { font-size: 10.5px; font-weight: 700; padding: 3px 9px; border-radius: 999px; text-transform: uppercase; letter-spacing: 0.04em; }
.badge.text { color: var(--green); background: var(--green-soft); border: 1px solid var(--green-line); }
.badge.ocr { color: var(--amber); background: var(--amber-soft); border: 1px solid var(--amber-line); }
.badge.ocr.lowconf { color: var(--red); background: var(--red-soft); border-color: var(--red-line); }
.badge.handwriting { color: var(--accent); background: var(--accent-soft); border: 1px solid var(--accent-ring); }
.badge.online { color: var(--teal); background: color-mix(in srgb, var(--teal) 15%, transparent); border: 1px solid color-mix(in srgb, var(--teal) 40%, transparent); }
.beta-tag { font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent); background: var(--accent-soft); padding: 1px 5px; border-radius: 999px; vertical-align: middle; }
.badge.error { color: var(--red); background: var(--red-soft); border: 1px solid var(--red-line); }
.badge.pending { color: var(--text-faint); background: var(--surface-2); border: 1px solid var(--border); }

.page-text {
  margin: 0; padding: 15px 17px; white-space: pre-wrap; word-break: break-word;
  font-family: var(--mono); font-size: 13px; line-height: 1.65; color: var(--text);
  max-height: 460px; overflow: auto;
}
.page-text:empty::before { content: "(no text on this page)"; color: var(--text-faint); font-style: italic; }
.page-text mark { background: var(--mark); color: var(--mark-text); border-radius: 3px; padding: 0 2px; }
.page-text mark.active { background: var(--mark-active); outline: 1.5px solid var(--amber); }

.lc-line { background: var(--amber-soft); border-bottom: 1px dashed var(--amber-line); border-radius: 3px; }
.to-check { font-size: 11px; font-weight: 600; color: var(--amber); background: var(--amber-soft); border: 1px solid var(--amber-line); border-radius: 999px; padding: 2px 9px; white-space: nowrap; }

.page-edit {
  width: 100%; box-sizing: border-box; margin: 0;
  padding: 15px 17px; min-height: 180px; max-height: 460px; resize: vertical;
  white-space: pre-wrap; word-break: break-word;
  font-family: var(--mono); font-size: 13px; line-height: 1.65;
  color: var(--text); background: var(--surface-3);
  border: 1px solid var(--accent); border-radius: 0 0 var(--radius) var(--radius);
  outline: none; box-shadow: inset 0 0 0 3px var(--accent-soft);
}

.page-image-wrap { padding: 13px 17px; border-top: 1px solid var(--border-soft); background: var(--surface); }
.page-image-wrap img { max-width: 100%; border-radius: 8px; border: 1px solid var(--border); display: block; }
.page-image-wrap .img-loading { color: var(--text-faint); font-size: 13px; }

/* toast */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(12px);
  background: var(--surface-raise); border: 1px solid var(--border); color: var(--text);
  padding: 12px 20px; border-radius: 999px; font-size: 13.5px; font-weight: 600;
  box-shadow: var(--shadow); opacity: 0; transition: opacity var(--t), transform var(--t);
  z-index: 50; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* footer tips */
.app-footer { max-width: 1440px; width: 100%; margin: 0 auto; padding: 4px 26px 28px; }
.footer-tips {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); box-shadow: var(--shadow-sm); padding: 2px 16px;
}
.footer-tips > summary {
  list-style: none; cursor: pointer; user-select: none;
  display: flex; align-items: center; gap: 8px;
  padding: 13px 2px; font-size: 13px; font-weight: 650; color: var(--text-dim);
}
.footer-tips > summary::-webkit-details-marker { display: none; }
.footer-tips > summary svg { color: var(--accent); flex: none; }
.footer-tips > summary:hover { color: var(--text); }
.footer-tips-list { margin: 0 0 14px; padding-left: 22px; }
.footer-tips-list li { font-size: 12.5px; color: var(--text-faint); margin-bottom: 6px; line-height: 1.55; }
.footer-tips-list li::marker { color: var(--accent); }

/* responsive */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding: 16px; gap: 18px; }
  .panel { position: static; }
  .toolbar { position: static; }
  .sidebar { order: 2; }
  .work { order: 1; }
  .app-footer { padding: 4px 16px 22px; }
}
@media (max-width: 520px) {
  .app-header { padding: 12px 16px; }
  .brand-text h1 { font-size: 17px; }
  .toolbar-actions { width: 100%; justify-content: space-between; }
  .dropzone { padding: 44px 20px; }
}

/* scrollbars */
.page-text::-webkit-scrollbar { width: 11px; height: 11px; }
.page-text::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; border: 3px solid var(--surface-3); }
.page-text::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }
.page-text::-webkit-scrollbar-track { background: transparent; }

/* online (Gemini) sub-setting */
.setting-sub { margin-left: 4px; padding-left: 13px; border-left: 2px solid var(--accent-soft); }

/* "Auto-detect best settings" recommendation panel */
.btn-primary { background: linear-gradient(145deg, var(--accent), var(--accent-strong)); color: var(--accent-contrast); border-color: transparent; box-shadow: 0 6px 16px -6px var(--accent-ring); }
.btn-primary:hover { filter: brightness(1.06); border-color: transparent; }
.suggest-card { margin-top: 6px; padding: 13px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-3); }
.suggest-rationale { font-size: 12px; line-height: 1.5; margin: 0 0 8px; color: var(--text-dim); }
.suggest-evidence { font-size: 11px; font-family: var(--mono); margin-bottom: 8px; }
.ev-row { display: grid; grid-template-columns: 1.5fr 1fr 0.9fr 0.9fr; gap: 6px; padding: 2px 0; opacity: 0.72; }
.ev-row.best { opacity: 1; font-weight: 650; color: var(--text); }

/* online (Gemini) settings */
.online-input { width: 100%; margin-bottom: 6px; font-family: var(--mono); font-size: 12px; }
.online-key-actions { display: flex; align-items: center; gap: 8px; }
.online-status { font-size: 11px; }
.online-status.good { color: var(--green); }
.online-status.bad { color: var(--red); }

/* remove (x) button on a file card */
.btn-remove { color: var(--text-dim); font-size: 18px; line-height: 1; padding: 3px 9px; font-weight: 700; box-shadow: none; border-color: transparent; background: transparent; }
.btn-remove:hover { color: var(--red); background: var(--red-soft); transform: none; }

/* ---------------- Knowledge graph panel (per file card) ---------------- */
.kg-panel { margin: 0 18px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-3); overflow: hidden; }
.kg-summary {
  list-style: none; cursor: pointer; user-select: none;
  display: flex; align-items: center; gap: 9px;
  padding: 12px 14px; font-size: 13px; font-weight: 650; color: var(--text);
}
.kg-summary::-webkit-details-marker { display: none; }
.kg-summary:hover { color: var(--accent); }
.kg-summary-icon { color: var(--accent); flex: none; }
.kg-chevron { color: var(--text-faint); margin-left: 2px; transition: transform var(--t); }
.kg-panel[open] > .kg-summary .kg-chevron { transform: rotate(180deg); }
.kg-summary-status { margin-left: auto; font-size: 11.5px; font-weight: 600; color: var(--text-faint); }
.kg-summary-status.good { color: var(--green); }
.kg-summary-status.bad { color: var(--red); }
.kg-summary-status.busy { color: var(--accent); }

.kg-body { padding: 4px 14px 14px; border-top: 1px solid var(--border-soft); }
.kg-intro { margin: 10px 0 12px; }
.kg-intro strong { color: var(--accent); }
.kg-build-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.kg-build-note { margin: 0; flex: 1; min-width: 180px; }

.kg-query-wrap { margin-top: 12px; }
.kg-ask { display: flex; gap: 8px; }
.kg-query-input {
  flex: 1; background: var(--surface); border: 1px solid var(--border); color: var(--text);
  font: inherit; font-size: 14px; padding: 9px 12px; border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.kg-query-input::placeholder { color: var(--text-faint); }
.kg-query-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.kg-results { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; }
.kg-empty { margin: 4px 0; font-size: 12.5px; color: var(--text-faint); }
.kg-resultmeta { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); font-weight: 700; }

.kg-answer { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); padding: 11px 13px; box-shadow: var(--shadow-sm); }
.kg-answer-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.kg-type-dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.kg-entity { font-size: 14px; font-weight: 700; color: var(--text); }
.kg-type-chip { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; border: 1px solid currentColor; border-radius: 999px; padding: 1px 7px; opacity: 0.9; }
.kg-pages { font-size: 11px; font-weight: 650; color: var(--text-dim); background: var(--surface-3); border: 1px solid var(--border); border-radius: 999px; padding: 1px 8px; font-variant-numeric: tabular-nums; }

.kg-facts { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.kg-triple { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 12.5px; line-height: 1.5; }
.kg-subj { font-weight: 650; color: var(--text); }
.kg-pred { color: var(--accent); font-style: italic; }
.kg-obj { font-weight: 650; color: var(--text); }
.kg-arrow { color: var(--text-faint); }
.kg-triple-page { margin-left: 2px; }

.kg-linkpath { margin-top: 9px; padding-top: 8px; border-top: 1px dashed var(--border); display: flex; flex-direction: column; gap: 4px; }
.kg-link-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-faint); font-weight: 700; }

.kg-tools { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.kg-viz-wrap { margin-top: 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); padding: 8px; }
.kg-canvas { width: 100%; display: block; border-radius: var(--radius-sm); background: var(--surface-3); }
.kg-viz-note { margin: 8px 2px 2px; text-align: center; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}