/* ════════════════════════════════════════════════════════════════════
   POWERGRID Document Auditor  —  Professional UI v3
   Design System:
     Primary Navy  : #00205B      (PGCIL brand)
     Accent Green  : #00843D      (PGCIL brand)
     Accent Blue   : #1565C0      (interactive)
     Surface       : #F4F6FA
     Card          : #FFFFFF
     Border        : #E2E8F0
     Text Primary  : #0F1C2E
     Text Secondary: #4A6585
   ════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Custom Properties ──────────────────────────────────────── */
:root {
  --pg-navy:      #00205B;
  --pg-navy-mid:  #003087;
  --pg-navy-dark: #001540;
  --pg-green:     #00843D;
  --pg-green-lt:  #00A84F;
  --pg-blue:      #1565C0;
  --pg-blue-lt:   #1976D2;
  --surface:      #F4F6FA;
  --surface-2:    #EEF2F8;
  --card:         #FFFFFF;
  --border:       #E2E8F0;
  --border-focus: #1565C0;
  --text-1:       #0F1C2E;
  --text-2:       #4A6585;
  --text-3:       #8BA0BB;
  --radius-sm:    6px;
  --radius-md:    10px;
  --radius-lg:    14px;
  --shadow-xs:    0 1px 3px rgba(0,32,91,0.08);
  --shadow-sm:    0 2px 8px rgba(0,32,91,0.10);
  --shadow-md:    0 4px 20px rgba(0,32,91,0.13);
  --transition:   0.15s ease;
}

/* ── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body, .gradio-container {
    background: var(--surface) !important;
    color: var(--text-1) !important;
    font-family: 'Inter', system-ui, -apple-system, sans-serif !important;
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.gradio-container > .main > .wrap {
    gap: 0 !important;
    padding: 0 !important;
    max-width: 100% !important;
}

footer { display: none !important; }

/* ════════════════════════════════════════════════════════════════════
   HEADER
   ════════════════════════════════════════════════════════════════════ */
#app-header {
    background: linear-gradient(135deg, var(--pg-navy-dark) 0%, var(--pg-navy) 50%, #003FAD 100%);
    border-bottom: 3px solid var(--pg-green);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 24px rgba(0,21,64,0.30);
}
#app-header-inner {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 12px 28px;
    max-width: 100%;
}
#app-header-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 52px;
    min-width: 52px;
    background: rgba(255,255,255,0.97);
    border-radius: var(--radius-md);
    flex-shrink: 0;
    padding: 6px 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.20);
}
#app-header-logo img {
    height: 38px; width: auto; display: block; object-fit: contain;
}
#app-header-text h1 {
    color: #FFFFFF !important;
    font-size: 1.10rem !important;
    font-weight: 700 !important;
    margin: 0 !important;
    line-height: 1.25;
    letter-spacing: -0.01em;
}
#app-header-text p {
    color: rgba(163,200,255,0.88) !important;
    font-size: 0.70rem !important;
    margin: 2px 0 0 !important;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 500;
}
#app-header-badge {
    margin-left: auto;
    background: rgba(255,255,255,0.10);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 20px;
    padding: 4px 14px;
    color: rgba(200,228,255,0.92);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    white-space: nowrap;
    backdrop-filter: blur(4px);
}

/* ════════════════════════════════════════════════════════════════════
   MAIN CONTENT WRAPPER
   ════════════════════════════════════════════════════════════════════ */
/* Outer row wrapping both panels */
.gradio-container .row {
    gap: 16px !important;
    padding: 16px !important;
    align-items: flex-start !important;
}

/* ════════════════════════════════════════════════════════════════════
   LEFT PANEL
   ════════════════════════════════════════════════════════════════════ */
#left-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 0 !important;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* ── Section Labels ─────────────────────────────────────────────── */
.section-label {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--pg-navy);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 14px 16px 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0 !important;
}
.section-label::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 12px;
    background: var(--pg-green);
    border-radius: 2px;
    flex-shrink: 0;
}

.section-divider {
    height: 1px;
    background: var(--border);
    margin: 0;
    border: none;
}

/* ── Left Panel inner spacing wrappers ─────────────────────────── */
#left-panel > .form,
#left-panel > div > .form {
    padding: 0 !important;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    gap: 0 !important;
}

/* All Gradio components inside left panel get consistent padding */
#left-panel .gradio-checkbox,
#left-panel .gradio-number,
#left-panel .gradio-file {
    padding: 10px 16px !important;
}

/* ── File Upload — drop zone ────────────────────────────────────── */
#left-panel .upload-container,
#left-panel [data-testid="file-upload"] {
    background: var(--surface) !important;
    border: 1.5px dashed #B8CCE0 !important;
    border-radius: var(--radius-md) !important;
    font-size: 0.79rem !important;
    color: var(--text-2) !important;
    transition: border-color var(--transition), background var(--transition);
    margin: 8px 16px !important;
    overflow: hidden !important;
}
#left-panel [data-testid="file-upload"]:hover {
    border-color: var(--pg-blue) !important;
    background: #EEF4FC !important;
}

/* ── Uploaded file preview (after a file is chosen) ─────────────── */
/* The outer wrapper Gradio renders once a file is uploaded          */
#left-panel .file-preview {
    margin: 8px 16px !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    background: var(--surface) !important;
    overflow: hidden !important;   /* clips the child content — kills scrollbar */
    max-width: 100% !important;
    box-sizing: border-box !important;
}

/* The inner upload-container div that Gradio renders inside preview */
#left-panel .file-preview .upload-container,
#left-panel .file-preview [class*="upload"] {
    overflow: hidden !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
}

/* The filename element — Gradio 6 uses .file-name with a svelte hash */
/* Target by class prefix since the hash changes between versions      */
#left-panel [class*="file-name"] {
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
    max-width: 100% !important;
    width: 100% !important;
    /* Override Gradio's huge padding+font */
    padding: 4px 8px !important;
    font-size: 0.78rem !important;
    word-break: normal !important;
}

/* The file-size element */
#left-panel [class*="file-size"] {
    padding: 2px 8px 4px !important;
    font-size: 0.70rem !important;
    color: var(--text-3) !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    max-width: 100% !important;
}
#left-panel .gradio-file > label {
    font-size: 0.72rem !important;
    font-weight: 600 !important;
    color: var(--text-2) !important;
    padding: 6px 16px 2px !important;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ── Skip-page checkboxes ───────────────────────────────────────── */
.skip-cb {
    padding: 4px 16px 8px !important;
}
.skip-cb label {
    color: var(--text-2) !important;
    font-size: 0.76rem !important;
}
.skip-cb label span { color: var(--text-2) !important; }
.skip-cb .info-text,
.skip-cb [class*="description"],
.skip-cb > .wrap > span:not([class*="label"]) { display: none !important; }
.skip-cb:has(input:disabled) { position: relative; cursor: not-allowed; opacity: 0.55; }
.skip-cb:has(input:disabled)::after {
    content: "Available for multi-page PDFs only";
    position: absolute; left: 16px; top: calc(100% + 2px);
    background: var(--text-1); color: #fff;
    font-size: 0.68rem; padding: 5px 10px;
    border-radius: 5px; white-space: nowrap;
    pointer-events: none; opacity: 0;
    transition: opacity var(--transition); z-index: 999;
    box-shadow: var(--shadow-md);
}
.skip-cb:has(input:disabled):hover::after { opacity: 1; }

/* ── Auto-align checkbox ────────────────────────────────────────── */
#left-panel .checkbox-group label {
    font-size: 0.79rem !important;
    color: var(--text-1) !important;
    font-weight: 500 !important;
}
#left-panel .gradio-checkbox {
    padding: 10px 16px !important;
    border-bottom: 1px solid var(--border) !important;
}

/* ── Compare Mode Radio ─────────────────────────────────────────── */
#compare-mode-radio {
    padding: 8px 16px 10px !important;
}
#compare-mode-radio .label-wrap { display: none !important; }
#compare-mode-radio .wrap {
    display: flex !important;
    flex-direction: row !important;
    gap: 0 !important;
    background: var(--surface-2);
    border: 1px solid #C8D8EE;
    border-radius: var(--radius-sm);
    overflow: hidden !important;
    padding: 3px !important;
    width: 100% !important;
    box-shadow: inset 0 1px 3px rgba(0,32,91,0.08);
}
#compare-mode-radio .wrap label {
    flex: 1 1 0 !important;
    min-width: 0 !important;
    height: 28px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    padding: 0 6px !important;
    margin: 0 !important;
    cursor: pointer;
    border-radius: 4px !important;
    transition: background var(--transition), color var(--transition);
    color: #4A6585 !important;
    background: transparent !important;
}
#compare-mode-radio .wrap label span {
    font-size: 0.72rem !important;
    font-weight: 600 !important;
    color: inherit !important;
    white-space: nowrap !important;
    pointer-events: none;
}
#compare-mode-radio .wrap label:has(input:checked) {
    background: var(--pg-navy) !important;
    color: #fff !important;
    box-shadow: 0 1px 4px rgba(0,32,91,0.28) !important;
}
#compare-mode-radio .wrap label:not(:has(input:checked)):hover {
    background: #dce8f8 !important;
    color: var(--pg-navy) !important;
}
#compare-mode-radio .wrap input[type=radio] { display: none !important; }

/* ── Specific Page Inputs row ───────────────────────────────────── */
#specific-pages-row {
    padding: 4px 16px 10px !important;
    gap: 10px !important;
    align-items: flex-end !important;
}
#page-old-input, #page-new-input {
    flex: 1 1 0 !important;
}
#page-old-input label, #page-new-input label {
    font-size: 0.66rem !important;
    font-weight: 600 !important;
    color: var(--text-2) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.07em !important;
}
#page-old-input input[type=number],
#page-new-input input[type=number] {
    text-align: center !important;
    border: 1px solid #C0D4E8 !important;
    border-radius: var(--radius-sm) !important;
    font-size: 0.85rem !important;
    font-weight: 700 !important;
    color: var(--pg-navy) !important;
    background: var(--surface) !important;
    height: 36px !important;
}
#page-old-input input[type=number]:focus,
#page-new-input input[type=number]:focus {
    border-color: var(--pg-blue) !important;
    box-shadow: 0 0 0 3px rgba(21,101,192,0.12) !important;
    outline: none !important;
}

/* ── RUN AUDIT Button ───────────────────────────────────────────── */
#run-btn {
    background: linear-gradient(135deg, var(--pg-green) 0%, var(--pg-green-lt) 100%) !important;
    border: none !important;
    border-radius: var(--radius-md) !important;
    color: #fff !important;
    font-weight: 700 !important;
    font-size: 0.88rem !important;
    letter-spacing: 0.04em;
    height: 44px !important;
    margin: 12px 16px !important;
    width: calc(100% - 32px) !important;
    box-shadow: 0 3px 12px rgba(0,132,61,0.35) !important;
    transition: box-shadow var(--transition), transform var(--transition);
    text-transform: uppercase;
}
#run-btn:hover {
    box-shadow: 0 5px 20px rgba(0,132,61,0.50) !important;
    transform: translateY(-1px) !important;
}
#run-btn:active {
    transform: translateY(0) !important;
    box-shadow: 0 2px 8px rgba(0,132,61,0.30) !important;
}

/* ── Fine-Tune Alignment D-Pad ──────────────────────────────────── */
#nudge-row-top, #nudge-row-bot {
    gap: 6px !important;
    justify-content: center !important;
    padding: 0 16px !important;
    margin: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
}
#nudge-row-top { padding-top: 8px !important; }
#nudge-row-bot { padding-bottom: 2px !important; }

/* Keyboard-style arrow keys */
#nudge-up, #nudge-down, #nudge-left, #nudge-right {
    width: 40px !important; min-width: 40px !important; max-width: 40px !important;
    height: 40px !important;
    padding: 0 !important;
    font-size: 0.95rem !important;
    border-radius: 8px !important;
    background: var(--card) !important;
    border: 1px solid #C0D4E8 !important;
    color: var(--pg-navy) !important;
    box-shadow: 0 3px 0 #9AB5CE, 0 4px 8px rgba(0,32,91,0.10) !important;
    transition: box-shadow 0.07s, transform 0.07s, background var(--transition);
    flex-shrink: 0 !important;
    font-weight: 700 !important;
}
#nudge-up:hover, #nudge-down:hover, #nudge-left:hover, #nudge-right:hover {
    background: #E8F0FC !important;
    border-color: var(--pg-navy) !important;
    box-shadow: 0 4px 0 var(--pg-navy), 0 6px 14px rgba(0,32,91,0.16) !important;
    transform: translateY(-1px);
}
#nudge-up:active, #nudge-down:active, #nudge-left:active, #nudge-right:active {
    transform: translateY(3px) !important;
    box-shadow: 0 0 0 #9AB5CE, 0 1px 3px rgba(0,32,91,0.10) !important;
    background: #C5D8EE !important;
}

/* Tip text below D-pad */
.nudge-tip {
    font-size: 0.66rem !important;
    color: var(--text-3) !important;
    margin: 4px 16px 8px !important;
    font-style: italic;
    text-align: center;
    line-height: 1.5;
}

/* Step / Scale inputs */
#nudge-step, #nudge-scale {
    padding: 6px 16px !important;
}
#nudge-step input[type=number], #nudge-scale input[type=number] {
    text-align: center !important;
    border: 1px solid #C0D4E8 !important;
    border-radius: var(--radius-sm) !important;
    font-size: 0.82rem !important;
    color: var(--pg-navy) !important;
    background: var(--surface) !important;
    transition: border-color var(--transition);
}
#nudge-step input[type=number]:focus, #nudge-scale input[type=number]:focus {
    border-color: var(--pg-blue) !important;
    outline: none !important;
    box-shadow: 0 0 0 3px rgba(21,101,192,0.12) !important;
}
#nudge-step label, #nudge-scale label {
    font-size: 0.67rem !important;
    font-weight: 600 !important;
    color: var(--text-2) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.07em !important;
}

/* Offset readout */
#nudge-readout-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 0.72rem;
    color: var(--pg-navy);
    text-align: left;
    line-height: 1.9;
    margin: 4px 16px 12px;
    letter-spacing: 0.02em;
}

/* ════════════════════════════════════════════════════════════════════
   RIGHT PANEL
   ════════════════════════════════════════════════════════════════════ */
#right-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px !important;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ── Toolbar ────────────────────────────────────────────────────── */
#toolbar-row {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 5px 8px;
    align-items: center !important;
    flex-wrap: nowrap !important;
    gap: 6px !important;
    min-height: 44px;
    box-shadow: var(--shadow-xs);
    overflow: visible;
}
/* Gradio wraps each Row child in a div — make the radio wrapper flex-shrink properly */
#toolbar-row > div {
    display: flex !important;
    align-items: center !important;
    min-width: 0 !important;
}
#toolbar-row > div:has(#view-mode-radio) {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    overflow: hidden;
}

.toolbar-sep {
    width: 1px;
    height: 24px;
    background: var(--border);
    flex-shrink: 0;
    align-self: center;
    margin: 0 1px;
}

/* ── Segmented view-mode control ─────────────────────────────────── */
#view-mode-radio {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    overflow: visible;
    /* Kill any top margin/padding Gradio adds for label space */
    padding-top: 0 !important;
    margin-top: 0 !important;
}
/* Hide label — belt-and-suspenders: show_label=False in Python + CSS */
#view-mode-radio .label-wrap,
#view-mode-radio [data-testid="block-label"],
#view-mode-radio > label {
    display: none !important;
}

/* The pill container — fills the full width of the radio component */
#view-mode-radio .wrap {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    gap: 2px !important;
    background: var(--surface-2);
    border: 1px solid #C8D8EE;
    border-radius: var(--radius-sm);
    overflow: hidden !important;
    padding: 3px !important;
    width: 100% !important;
    box-sizing: border-box !important;
    box-shadow: inset 0 1px 3px rgba(0,32,91,0.08);
    margin: 0 !important;
}

/* Each pill — equal thirds, fixed height, centered text */
#view-mode-radio .wrap label {
    flex: 1 1 0 !important;
    min-width: 0 !important;
    height: 30px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    padding: 0 6px !important;
    margin: 0 !important;
    cursor: pointer;
    border-radius: 4px !important;
    transition: background var(--transition), color var(--transition), box-shadow var(--transition);
    color: #4A6585 !important;
    background: transparent !important;
    overflow: hidden !important;
}

/* The text node — Gradio wraps it in a span */
#view-mode-radio .wrap label span {
    font-size: 0.73rem !important;
    font-weight: 600 !important;
    color: inherit !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    line-height: 1 !important;
    pointer-events: none;
}

/* Selected pill → navy */
#view-mode-radio .wrap label:has(input:checked) {
    background: var(--pg-navy) !important;
    color: #ffffff !important;
    box-shadow: 0 1px 4px rgba(0,32,91,0.28) !important;
}
/* Hover (unselected) */
#view-mode-radio .wrap label:not(:has(input:checked)):hover {
    background: #dce8f8 !important;
    color: var(--pg-navy) !important;
}
#view-mode-radio .wrap input[type=radio] { display: none !important; }

/* Rotation buttons */
#rot-left, #rot-right {
    width: 36px !important; min-width: 36px !important; max-width: 36px !important;
    height: 36px !important; padding: 0 !important;
    font-size: 1.10rem !important;
    border-radius: var(--radius-sm) !important;
    background: var(--card) !important;
    border: 1px solid #C8D8EE !important;
    color: var(--pg-navy) !important;
    flex-shrink: 0 !important;
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
    box-shadow: var(--shadow-xs);
}
#rot-left:hover, #rot-right:hover {
    background: #E8F0FC !important;
    border-color: var(--pg-blue) !important;
    box-shadow: 0 0 0 3px rgba(21,101,192,0.12) !important;
}


/* ── Page slider ─────────────────────────────────────────────────── */
#page-slider {
    padding: 4px 2px 2px !important;
    margin: 0 !important;
}
/* Label row: "Page  1 / 5" */
#page-slider .label-wrap {
    display: flex !important;
    align-items: center !important;
    gap: 6px;
    margin-bottom: 2px !important;
}
#page-slider .label-wrap span {
    font-size: 0.72rem !important;
    font-weight: 700 !important;
    color: var(--text-2) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.07em !important;
}
/* The track */
#page-slider input[type=range] {
    accent-color: var(--pg-navy) !important;
    height: 4px;
    cursor: pointer;
}
/* Number box beside the slider */
#page-slider .number-wrap input,
#page-slider input[type=number] {
    width: 48px !important;
    text-align: center !important;
    font-size: 0.78rem !important;
    font-weight: 600 !important;
    color: var(--pg-navy) !important;
    border: 1px solid #C8D8EE !important;
    border-radius: var(--radius-sm) !important;
    background: var(--surface) !important;
    padding: 2px 4px !important;
}

/* ── Result Image ───────────────────────────────────────────────── */
#result-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    background: var(--surface);
}
#result-image > .label-wrap { display: none !important; }
#result-image .image-container { border-radius: var(--radius-md); overflow: hidden; }

/* ── Legend Bar ─────────────────────────────────────────────────── */
#legend-bar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 8px 16px;
    flex-wrap: wrap !important;
    gap: 12px !important;
    box-shadow: var(--shadow-xs);
}

/* ── Download area ──────────────────────────────────────────────── */
#right-panel .file-preview,
#right-panel [data-testid="file"] {
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    background: var(--surface) !important;
    box-shadow: var(--shadow-xs) !important;
    transition: box-shadow var(--transition);
}
#right-panel .file-preview:hover,
#right-panel [data-testid="file"]:hover {
    box-shadow: var(--shadow-sm) !important;
}

/* ════════════════════════════════════════════════════════════════════
   GLOBAL GRADIO OVERRIDES — clean up noisy defaults
   ════════════════════════════════════════════════════════════════════ */
/* Remove double borders on column/row containers */
.gradio-container .block {
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 0 !important;
}
/* Keep panel overrides intact */
#left-panel.block, #right-panel.block {
    border: 1px solid var(--border) !important;
    background: var(--card) !important;
    box-shadow: var(--shadow-sm) !important;
}

/* Gradio checkbox styling */
.gradio-checkbox input[type=checkbox] {
    accent-color: var(--pg-green) !important;
    width: 15px; height: 15px;
}

/* Gradio Number input spinners */
.gradio-number input[type=number]::-webkit-inner-spin-button,
.gradio-number input[type=number]::-webkit-outer-spin-button {
    opacity: 0.5;
}

/* Scrollbar styling (webkit) */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface-2); border-radius: 3px; }
::-webkit-scrollbar-thumb { background: #B0C4DA; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #7A9DC0; }

/* ── Region selection widgets ───────────────────────────────── */
#page-compare-mode-radio .wrap {
    flex-direction: row !important;
    gap: 4px !important;
    padding: 3px !important;
    background: var(--surface-2);
    border: 1px solid #C8D8EE;
    border-radius: var(--radius-sm);
}
#page-compare-mode-radio .wrap label {
    flex: 1 1 0 !important;
    height: 28px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.72rem !important;
    font-weight: 600 !important;
    border-radius: 4px !important;
    cursor: pointer;
    color: #4A6585 !important;
    background: transparent !important;
    transition: background var(--transition), color var(--transition);
}
#page-compare-mode-radio .wrap label:has(input:checked) {
    background: var(--pg-navy) !important;
    color: #ffffff !important;
}
#page-compare-mode-radio .wrap input[type=radio] { display: none !important; }

/* Region selector — image + overlay canvas */
#region-page-img {
    border: 2px dashed #7A9DC0 !important;
    border-radius: var(--radius-md) !important;
    background: #f0f4f8 !important;
    margin-top: 4px !important;
}
#region-page-img .image-container { position: relative !important; }
#region-draw-overlay { position: absolute; cursor: crosshair; z-index: 10; }

/* Hide the coords bridge textbox but keep it in the DOM */
.region-coords-hidden {
    height: 0 !important;
    min-height: 0 !important;
    overflow: hidden !important;
    padding: 0 !important;
    margin: 0 !important;
    border: none !important;
    opacity: 0 !important;
    pointer-events: none !important;
}
.region-coords-hidden textarea { display: none !important; }

#clear-region-btn { margin-top: 4px; }
#region-readout {
    font-size: 0.71rem;
    color: #4A6585;
    background: var(--surface);
    border: 1px solid #C8D8EE;
    border-radius: var(--radius-sm);
    padding: 5px 8px;
    margin: 4px 0;
    min-height: 28px;
    line-height: 1.4;
}