/* ============================================================
   Scriporia — EnchantedBytes
   Fonts: Cinzel (logo + panel headers), Source Sans 3 (UI body)
   Both imported in index.html via Google Fonts.
   ============================================================ */

/* ── Scriptorium theme (default — warm dark) ────────────────
   Aged leather, candlelight, ink on old parchment.
   ──────────────────────────────────────────────────────────── */
:root {
  /* Surfaces */
  --bg-deep:          #1A1208;   /* aged leather — page body bg */
  --bg-panel:         #231810;   /* dark warm brown — side panels */
  --bg-panel-alt:     #1E1409;   /* slightly darker — sticky headers */
  --bg-toolbar:       #1E1409;   /* topbar + left toolbar */
  --bg-surface:       #2E2212;   /* elevated surface within panels */
  --bg-input:         #150F06;   /* input fields, button fills */
  --bg-canvas:        #F5F0E8;   /* page/canvas background */
  --bg-canvas-area:   #120E06;   /* the dark well the canvas floats in */
  --bg-gutter:        #C4B090;   /* warm tan gutter around canvas */
  --bg-check-a:       #1C1508;   /* checkered bg — dark square */
  --bg-check-b:       #170F05;   /* checkered bg — darker square */
  --bg-deep-rgb:      26, 18, 8; /* for rgba() compositing */

  /* Gold accent */
  --gold:             #C4943A;   /* old gold */
  --gold-dim:         #7A5A1A;   /* muted gold — borders, icons at rest */
  --gold-hover:       #D9A84A;   /* brightened on hover */
  --gold-rgb:         196, 148, 58;

  /* Typography */
  --text-primary:     #EDE0C8;   /* warm parchment */
  --text-secondary:   #9A7D5A;   /* warm mid-tone */
  --text-dim:         #5A4430;   /* de-emphasised text */

  /* Borders */
  --border:           #3A2A18;
  --border-light:     #624830;   /* bumped up — more visible on dark bg */

  /* Feedback */
  --danger:           #8B3A2A;
  --danger-rgb:       139, 58, 42;

  /* Rulers */
  --ruler-bg:         #1E1409;
  --ruler-mark:       #3A2A18;
  --ruler-text:       #6A5040;

  /* Semantic interaction tints */
  --hover-tint:       rgba(255, 255, 255, 0.05);
  --btn-primary-text: #1A1208;   /* dark text on gold button */
  --swatch-border:    rgba(255, 255, 255, 0.12);

  /* Layout */
  --panel-width:      240px;
  --toolbar-width:    52px;
  --topbar-h:         44px;
  --thumbs-h:         110px;
  --ruler-size:       24px;

  /* Shape */
  --radius:           4px;
  --radius-sm:        2px;

  /* Typography stacks */
  --font-ui:          'Source Sans 3', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display:     'Cinzel', Georgia, 'Times New Roman', serif;
  --font-mono:        'Cascadia Code', 'Fira Code', monospace;
}


/* ── Parchment theme (warm light) ───────────────────────────
   Daylight scriptorium — warm cream, dark ink, antique oak.
   ──────────────────────────────────────────────────────────── */
html[data-theme="parchment"] {
  --bg-deep:          #F2E8D4;
  --bg-panel:         #EBE0C8;
  --bg-panel-alt:     #E0D4B8;
  --bg-toolbar:       #D8CAA8;
  --bg-surface:       #F5ECD8;
  --bg-input:         #FAF5E8;
  --bg-canvas:        #FAFAF6;
  --bg-canvas-area:   #C8B898;
  --bg-gutter:        #B8A878;
  --bg-check-a:       #D0C4A8;
  --bg-check-b:       #C8BA9C;
  --bg-deep-rgb:      242, 232, 212;

  --gold:             #7A4E10;   /* dark amber — legible on light bg */
  --gold-dim:         #5A3808;
  --gold-hover:       #9A6A20;
  --gold-rgb:         122, 78, 16;

  --text-primary:     #2A1A0A;
  --text-secondary:   #6A4A20;
  --text-dim:         #9A7A50;

  --border:           #C0A878;
  --border-light:     #B09060;

  --danger:           #8B2820;
  --danger-rgb:       139, 40, 32;

  --ruler-bg:         #D8CAA8;
  --ruler-mark:       #B09060;
  --ruler-text:       #9A7A50;

  --hover-tint:       rgba(0, 0, 0, 0.05);
  --btn-primary-text: #FAF5E8;
  --swatch-border:    rgba(0, 0, 0, 0.15);
}


/* ── High Contrast theme (accessibility) ────────────────────
   Maximum legibility — pure black/white, bright gold accent.
   ──────────────────────────────────────────────────────────── */
html[data-theme="high-contrast"] {
  --bg-deep:          #000000;
  --bg-panel:         #0A0A0A;
  --bg-panel-alt:     #111111;
  --bg-toolbar:       #050505;
  --bg-surface:       #1A1A1A;
  --bg-input:         #000000;
  --bg-canvas:        #FFFFFF;
  --bg-canvas-area:   #000000;
  --bg-gutter:        #DDDDDD;
  --bg-check-a:       #1A1A1A;
  --bg-check-b:       #111111;
  --bg-deep-rgb:      0, 0, 0;

  --gold:             #FFD700;
  --gold-dim:         #CCA800;
  --gold-hover:       #FFE44D;
  --gold-rgb:         255, 215, 0;

  --text-primary:     #FFFFFF;
  --text-secondary:   #DDDDDD;
  --text-dim:         #AAAAAA;

  --border:           #555555;
  --border-light:     #888888;

  --danger:           #FF4444;
  --danger-rgb:       255, 68, 68;

  --ruler-bg:         #050505;
  --ruler-mark:       #555555;
  --ruler-text:       #AAAAAA;

  --hover-tint:       rgba(255, 255, 255, 0.08);
  --btn-primary-text: #000000;
  --swatch-border:    rgba(255, 255, 255, 0.4);
}


/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--font-ui);
  font-size: 13px;
  background: var(--bg-deep);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
}


/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }


/* ── Topbar ─────────────────────────────────────────────────── */
#topbar {
  height: var(--topbar-h);
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 16px;
  flex-shrink: 0;
  z-index: 100;
}

/* ── Logo ────────────────────────────────────────────────────── */
#app-logo {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-right: 8px;
  user-select: none;
  flex-shrink: 0;
}
.logo-mark {
  color: var(--gold);
  font-size: 15px;
  line-height: 1;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  /* Subtle candlelight glow — only visible on dark themes */
  text-shadow: 0 0 20px rgba(var(--gold-rgb), 0.25);
}

#page-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

#topbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}


/* ── Buttons ─────────────────────────────────────────────────── */
button { cursor: pointer; font-family: inherit; font-size: 13px; border: none; outline: none; }

.btn-ghost {
  background: rgba(var(--gold-rgb), 0.04);   /* faint warm tint — not invisible */
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  transition: color 0.15s, border-color 0.15s, background 0.15s, box-shadow 0.2s;
}
.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--gold-dim);
  background: rgba(var(--gold-rgb), 0.1);
  box-shadow: 0 0 8px rgba(var(--gold-rgb), 0.22);
}
.btn-ghost.small  { padding: 3px 8px; font-size: 12px; }
.btn-ghost.full-width { width: 100%; margin-top: 6px; }
.btn-ghost.danger { color: var(--danger); border-color: transparent; }
.btn-ghost.danger:hover {
  border-color: var(--danger);
  background: rgba(var(--danger-rgb), 0.1);
}

.btn-primary {
  background: var(--gold);
  color: var(--btn-primary-text);
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--gold);
  transition: background 0.15s, box-shadow 0.2s;
}
.btn-primary:hover  {
  background: var(--gold-hover);
  border-color: var(--gold-hover);
  box-shadow: 0 0 14px rgba(var(--gold-rgb), 0.45);
}
.btn-primary:active { background: var(--gold-dim); border-color: var(--gold-dim); box-shadow: none; }

.btn-icon {
  background: transparent;
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  line-height: 1;
  border: none;
  transition: color 0.15s, text-shadow 0.2s;
}
.btn-icon:hover {
  color: var(--gold);
  text-shadow: 0 0 8px rgba(var(--gold-rgb), 0.6);
}


/* ── Inputs ──────────────────────────────────────────────────── */
select, input[type="number"], input[type="text"] {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 3px 7px;
  font-size: 12px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}
select:focus,
input[type="number"]:focus,
input[type="text"]:focus { border-color: var(--gold-dim); }

select {
  appearance: none;
  padding-right: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23888'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  font-size: 12px;
}
.toggle-label input[type="checkbox"] { accent-color: var(--gold); }


/* ── Workspace ───────────────────────────────────────────────── */
#workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  /* min-height: 0 prevents the flex item from expanding beyond its
     allocated share when CSS variables change (e.g. layout toggle) */
  min-height: 0;
}


/* ── Left toolbar ────────────────────────────────────────────── */
#toolbar {
  width: var(--toolbar-width);
  background: var(--bg-toolbar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  gap: 4px;
  flex-shrink: 0;
  overflow-y: auto;
}

.tool-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  width: 100%;
}
.tool-group:last-child { border-bottom: none; }

.tool-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-secondary);   /* was text-dim — brighter at rest */
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s, box-shadow 0.2s;
  position: relative;
}
.tool-btn svg { width: 18px; height: 18px; }
.tool-btn:hover {
  background: rgba(var(--gold-rgb), 0.1);
  color: var(--text-primary);
  /* warm candle glow around the icon on hover */
  box-shadow: 0 0 12px rgba(var(--gold-rgb), 0.38), inset 0 0 8px rgba(var(--gold-rgb), 0.06);
}
.tool-btn.active {
  background: rgba(var(--gold-rgb), 0.18);   /* slightly stronger fill */
  color: var(--gold);
  /* persistent soft glow to show the selected tool */
  box-shadow: 0 0 8px rgba(var(--gold-rgb), 0.25);
}
/* Left accent bar on active tool */
.tool-btn.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 60%;
  background: var(--gold);
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 6px var(--gold);   /* glow on the accent bar itself */
}


/* ── Canvas area ─────────────────────────────────────────────── */
#canvas-area {
  flex: 1;
  display: grid;
  grid-template-columns: var(--ruler-size) 1fr;
  grid-template-rows: var(--ruler-size) 1fr;
  background: var(--bg-canvas-area);
  overflow: hidden;
  position: relative;
  min-height: 0;
  min-width: 0;
}

#ruler-corner {
  background: var(--ruler-bg);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  grid-column: 1;
  grid-row: 1;
}
#ruler-h {
  grid-column: 2;
  grid-row: 1;
  display: block;
  background: var(--ruler-bg);
  border-bottom: 1px solid var(--border);
  height: var(--ruler-size);
  width: 100%;
}
#ruler-v {
  grid-column: 1;
  grid-row: 2;
  display: block;
  background: var(--ruler-bg);
  border-right: 1px solid var(--border);
  width: var(--ruler-size);
  height: 100%;
  min-height: 0; /* prevent canvas intrinsic height from inflating the grid row */
}

/* Checkered transparency indicator — uses theme variables for smooth theme switching */
#canvas-viewport {
  grid-column: 2;
  grid-row: 2;
  overflow: hidden;
  position: relative;
  /* min-height/min-width: 0 prevents the grid track from expanding to fit
     the canvas element inside — without these, the 1fr track size is
     unstable and Fabric's setDimensions triggers cascading layout changes */
  min-height: 0;
  min-width: 0;
  background:
    repeating-conic-gradient(var(--bg-check-a) 0% 25%, var(--bg-check-b) 0% 50%)
    0 0 / 20px 20px;
}

/* Gutter — warm linen weave texture.
   Two faint crosshatch gradients (slightly different opacity) over the base colour
   to suggest warp and weft without reaching for an image file. */
#canvas-wrapper {
  /* Absolute fill: removes canvas-wrapper from flow so Fabric's canvas-container
     can never inflate #canvas-viewport's clientHeight via min-height propagation.
     The linen texture still covers the full viewport area. */
  position: absolute;
  inset: 0;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent 0px, transparent 9px,
      rgba(0,0,0,0.055) 9px, rgba(0,0,0,0.055) 10px
    ),
    repeating-linear-gradient(
      90deg,
      transparent 0px, transparent 9px,
      rgba(0,0,0,0.035) 9px, rgba(0,0,0,0.035) 10px
    );
  background-color: var(--bg-gutter);
}

/* Canvas drop-shadow — simulates a lit worksurface */
#canvas-wrapper canvas {
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.5),
    0 8px 40px rgba(0,0,0,0.6),
    0 0 80px rgba(var(--gold-rgb), 0.04);
  display: block;
}

/* Guide overlay — absolute fill over the viewport, drawn on by canvas.js */
#guide-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none; /* all clicks pass through to Fabric */
  z-index: 3;           /* above Fabric's upper canvas (z-index 2) */
  width: 100%;
  height: 100%;
}

/* ── Guide controls (topbar) ──────────────────────────────────── */
#guide-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Guide panel (floating popover) ──────────────────────────── */
#guide-panel {
  position: fixed;
  z-index: 9200;
  background: var(--bg-panel, #18162a);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px 14px;
  min-width: 230px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.55);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
#guide-panel.hidden { display: none; }

.guide-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.guide-panel-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  padding: 0 2px;
  line-height: 1;
}
.guide-panel-close:hover { color: var(--text); }

.guide-snap-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}
.guide-snap-label input[type="checkbox"] {
  accent-color: var(--accent, #c9a84c);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

.guide-style-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text);
}
.guide-style-row label {
  width: 46px;
  flex-shrink: 0;
  color: var(--text-muted);
}
.guide-style-row input[type="range"] {
  flex: 1;
  accent-color: rgba(96, 200, 255, 0.8);
}
.guide-style-row input[type="color"] {
  width: 32px;
  height: 24px;
  padding: 1px 2px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-input, #0e0c1a);
  cursor: pointer;
}
#guide-opacity-val {
  width: 30px;
  text-align: right;
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.guide-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 160px;
  overflow-y: auto;
}
.guide-empty-hint {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
  padding: 4px 0;
}
.guide-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text);
  padding: 3px 6px;
  border-radius: 4px;
  background: rgba(96,200,255,0.06);
}
.guide-item-axis {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  background: rgba(96,200,255,0.15);
  color: rgba(96,200,255,0.9);
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.guide-item-pos {
  flex: 1;
  font-variant-numeric: tabular-nums;
}
.guide-item-del {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  padding: 0 2px;
  line-height: 1;
  flex-shrink: 0;
}
.guide-item-del:hover { color: var(--danger, #e05050); }

.guide-add-row {
  display: flex;
  align-items: center;
  gap: 5px;
}
.guide-add-row select,
.guide-add-row input[type="number"] {
  background: var(--bg-input, #0e0c1a);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
  padding: 4px 6px;
}
.guide-add-row select { flex: 1.4; }
.guide-add-row input[type="number"] { flex: 1; min-width: 0; }
#guide-unit-label {
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.guide-panel-footer {
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: -2px;
}


/* ── Right panel ─────────────────────────────────────────────── */
#right-panel {
  width: var(--panel-width);
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}

/* Panel section headers — Cinzel display font for scribal character */
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-alt);
  position: sticky;
  top: 0;
  z-index: 2;
}
.panel-header-actions { display: flex; gap: 4px; }


/* ── Layers list ─────────────────────────────────────────────── */
#layers-list {
  flex: 1;
  overflow-y: auto;
  min-height: 80px;
}

.layer-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
  user-select: none;
}
.layer-item:hover { background: var(--hover-tint); }
.layer-item.active { background: rgba(var(--gold-rgb), 0.08); }
.layer-item.active .layer-name { color: var(--gold); }

.layer-thumb {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--border);
  object-fit: cover;
  flex-shrink: 0;
}
.layer-name {
  flex: 1;
  font-size: 12px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.layer-controls {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s;
}
.layer-item:hover .layer-controls { opacity: 1; }

.layer-icon-btn {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: color 0.1s;
}
.layer-icon-btn:hover   { color: var(--text-primary); }
.layer-icon-btn.toggled { color: var(--gold); }


/* ── Properties panel ─────────────────────────────────────────── */
#properties-panel {
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
#properties-content {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.prop-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.prop-row label {
  width: 44px;
  font-size: 11px;
  color: var(--text-secondary);
  flex-shrink: 0;
  text-align: right;
}
.prop-row input[type="number"] {
  flex: 1;
  min-width: 0;
  font-size: 12px;
  font-family: var(--font-mono);
}
.prop-row input[type="range"] {
  flex: 1;
  min-width: 0;
  accent-color: var(--gold);
}
.prop-unit {
  font-size: 10px;
  color: var(--text-dim);
  width: 18px;
  flex-shrink: 0;
}
.prop-actions {
  display: flex;
  gap: 6px;
}
.prop-actions button { flex: 1; }


/* ── Subpanels ────────────────────────────────────────────────── */
.subpanel {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.subpanel-header {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.subpanel-hint {
  font-size: 11px;
  color: var(--text-secondary);
  margin: 0 0 8px;
  line-height: 1.4;
}
.torn-edge-toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 8px;
}
.torn-edge-toggles label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}
.torn-edge-toggles input { accent-color: var(--gold); }


/* ── Page thumbnails footer ──────────────────────────────────── */
#page-thumbs {
  height: var(--thumbs-h);
  background: var(--bg-toolbar);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  overflow: hidden;
}

#thumbs-scroll {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  overflow-x: auto;
  overflow-y: hidden;
  height: 100%;
  width: 100%;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-dim) var(--bg-toolbar);
}
#thumbs-scroll::-webkit-scrollbar       { height: 4px; }
#thumbs-scroll::-webkit-scrollbar-track { background: var(--bg-toolbar); }
#thumbs-scroll::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 2px; }

/* JS renders .spread-thumb items into this — must stay a flex row */
#spread-thumbs-list {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 12px;
  flex-shrink: 0;
}

.spread-thumb {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
}
.spread-thumb-img {
  width: 120px;
  height: 80px;
  border-radius: var(--radius);
  border: 2px solid var(--border-light);
  background: var(--bg-canvas) center/cover no-repeat;
  transition: border-color 0.15s;
}
.spread-thumb:hover .spread-thumb-img  { border-color: var(--gold-dim); }
.spread-thumb.active .spread-thumb-img { border-color: var(--gold); }

.spread-thumb-label {
  text-align: center;
  font-size: 9px;
  color: var(--text-dim);
  white-space: nowrap;
}
.spread-thumb.active .spread-thumb-label { color: var(--gold); }

.spread-page-num {
  position: absolute;
  top: 3px;
  font-size: 8px;
  color: var(--text-dim);
  background: rgba(0,0,0,0.35);
  border-radius: 2px;
  padding: 0 2px;
  pointer-events: none;
}
.spread-page-num.spl { left:  4px; }
.spread-page-num.spr { right: 4px; }


/* ── Context menu ─────────────────────────────────────────────── */
.ctx-menu {
  position: fixed;
  z-index: 10000;
  background: var(--bg-toolbar);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 0;
  min-width: 160px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.ctx-menu-item {
  display: block;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
}
.ctx-menu-item:hover {
  background: rgba(var(--gold-rgb), 0.12);
  color: var(--gold);
}

.thumb-add-btn {
  width: 40px;
  height: 80px;
  background: transparent;
  border: 1.5px dashed var(--border-light);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s;
}
.thumb-add-btn:hover { border-color: var(--gold-dim); color: var(--gold); }


/* ── Drop overlay ─────────────────────────────────────────────── */
#drop-overlay {
  position: fixed;
  inset: 0;
  background: rgba(var(--bg-deep-rgb), 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  pointer-events: none;
}
.drop-message {
  font-size: 24px;
  color: var(--gold);
  border: 2px dashed var(--gold);
  border-radius: 12px;
  padding: 40px 80px;
  letter-spacing: 0.05em;
}


/* ── Modal ────────────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}
.modal-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 20px;
  min-width: 280px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.7);
}
.modal-header {
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}


/* ── Utility ──────────────────────────────────────────────────── */
.hidden { display: none !important; }


/* ── Torn edge panel ──────────────────────────────────────────── */

/* Compass-style 2×2 edge selector */
.edge-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 8px;
}
.edge-btn {
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 5px 0;
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  text-align: center;
}
.edge-btn:hover {
  color: var(--text-primary);
  border-color: var(--gold-dim);
}
/* .selected = currently editing this edge */
.edge-btn.selected {
  color: var(--text-primary);
  border-color: var(--border-light);
  box-shadow: 0 0 0 1px var(--border-light) inset;
}
/* .torn = has an active tear */
.edge-btn.torn {
  color: var(--gold-dim);
  border-color: var(--gold-dim);
}
/* both selected AND torn */
.edge-btn.torn.selected {
  background: rgba(var(--gold-rgb), 0.18);
  color: var(--gold);
  border-color: var(--gold);
}
.torn-edge-hint {
  font-size: 10px;
  color: var(--text-dim);
  margin: -4px 0 8px;
  line-height: 1.4;
}
.torn-actions {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}
.torn-actions button { flex: 1; }


/* ── Page background popover ──────────────────────────────────── */
#page-bg-popover {
  position: fixed;
  z-index: 2000;
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 12px;
  min-width: 200px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.popover-header {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

input[type="color"] {
  width: 40px;
  height: 26px;
  padding: 1px 2px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  cursor: pointer;
  vertical-align: middle;
}


/* ── Punch tool panel ─────────────────────────────────────────── */
#punch-panel {
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.punch-panel-content {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.punch-mode-row { display: flex; gap: 4px; }
.punch-mode-btn {
  flex: 1;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 5px 0;
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  text-align: center;
}
.punch-mode-btn:hover {
  color: var(--text-primary);
  border-color: var(--gold-dim);
}
.punch-mode-btn.active {
  background: rgba(var(--gold-rgb), 0.18);
  color: var(--gold);
  border-color: var(--gold);
}
.layer-punch-dot {
  color: var(--gold-dim);
  font-size: 10px;
}


/* ── Fabric.js overrides ──────────────────────────────────────── */
.canvas-container { display: block !important; }
.upper-canvas { cursor: default; }


/* ── Zoom controls ────────────────────────────────────────────── */
#reset-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 12px;
}
#zoom-controls {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}
#btn-zoom-pct {
  min-width: 50px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
}


/* ── Washi tape panel ─────────────────────────────────────────── */
#washi-panel {
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  max-height: 70vh;
  overflow-y: auto;
}
.washi-panel-content {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.washi-section-header {
  margin-top: 6px;
  margin-bottom: 2px;
}
.washi-presets {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 3px;
}
.washi-preset-btn {
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 4px 0;
  font-size: 10px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  text-align: center;
}
.washi-preset-btn:hover { color: var(--text-primary); border-color: var(--gold-dim); }
.washi-preset-btn.active {
  background: rgba(var(--gold-rgb), 0.18);
  color: var(--gold);
  border-color: var(--gold);
}

.washi-radio-group { display: flex; flex-direction: column; gap: 4px; }
.washi-radio-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}
.washi-radio-group input[type="radio"] { accent-color: var(--gold); }

/* Per-edge roughness toggles */
.washi-edge-pick {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  margin-top: 4px;
}
.washi-edge-btn {
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 4px 0;
  font-size: 10px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  text-align: center;
}
.washi-edge-btn:hover { color: var(--text-primary); border-color: var(--gold-dim); }
.washi-edge-btn.active {
  background: rgba(var(--gold-rgb), 0.18);
  color: var(--gold);
  border-color: var(--gold);
}


/* ── Background removal panel ─────────────────────────────────── */
.bgremove-panel-content {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.bgremove-status {
  font-size: 12px;
  color: var(--gold);
  min-height: 16px;
}
.bgremove-tips {
  margin: 4px 0 0;
  padding-left: 16px;
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.bgremove-tips li { margin-bottom: 3px; }


/* ── Asset library panel ──────────────────────────────────────── */
.assets-panel-content { padding: 8px 10px; overflow-y: auto; }
.asset-collection { margin-bottom: 14px; }
.asset-collection-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.asset-collection-header > span {
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--gold);
}
.asset-buy-link {
  font-size: 10px;
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  white-space: nowrap;
}
.asset-buy-link:hover { color: var(--gold); border-color: var(--gold-dim); }

.asset-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}
.asset-card {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: grab;
}
.asset-card:hover { border-color: var(--gold-dim); }
.asset-thumb {
  width: 100%;
  height: 64px;
  border-radius: 3px;
}
.asset-name {
  font-size: 10px;
  color: var(--text-secondary);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.asset-try {
  background: rgba(var(--gold-rgb), 0.14);
  color: var(--gold);
  border: 1px solid var(--gold-dim);
  border-radius: var(--radius-sm);
  padding: 3px 0;
  font-size: 10px;
  font-family: inherit;
  cursor: pointer;
}
.asset-try:hover { background: rgba(var(--gold-rgb), 0.28); }

/* Tabs */
.assets-tabs { display: flex; gap: 4px; padding: 6px 10px 0; }
.assets-tab {
  flex: 1;
  background: none;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-bottom: none;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  padding: 5px 0;
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
}
.assets-tab.active {
  color: var(--gold);
  border-color: var(--gold-dim);
  background: rgba(var(--gold-rgb), 0.1);
}
.assets-view.hidden { display: none; }
.assets-view#assets-user { padding: 8px 10px; display: flex; flex-direction: column; gap: 8px; }

/* Collapsible stock folders */
.asset-folder { margin-bottom: 10px; }
.asset-folder-header {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 4px 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
}
.asset-folder-caret { font-size: 10px; color: var(--text-secondary); transition: transform 0.15s; }
.asset-folder.collapsed .asset-folder-caret { transform: rotate(-90deg); }
.asset-folder-name { flex: 1; font-size: 11px; color: var(--text-primary); }
.asset-folder.collapsed .asset-grid { display: none; }

/* Card actions row + delete */
.asset-card-actions { display: flex; gap: 3px; }
.asset-card-actions .asset-try { flex: 1; }
.asset-del {
  background: none;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  width: 22px;
  font-size: 11px;
  cursor: pointer;
}
.asset-del:hover { color: var(--danger); border-color: var(--danger); }


/* ── Paint panel ──────────────────────────────────────────────── */
.paint-panel-content {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.paint-panel-content input[type="color"] {
  width: 36px;
  height: 22px;
  padding: 0;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
}
.washi-file-label {
  font-size: 11px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-height: 14px;
}
.full-width-btn {
  width: 100%;
  margin-top: 6px;
}


/* ── Journal elements panel ───────────────────────────────────── */
#journal-panel {
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.journal-panel-content {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.journal-elements-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}
.journal-elem-btn {
  --journal-btn-colour: #888;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--journal-btn-colour);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  font-size: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  text-align: left;
  transition: background 0.12s, color 0.12s;
}
.journal-elem-btn:hover {
  background: color-mix(in srgb, var(--journal-btn-colour) 15%, var(--bg-input));
  color: var(--text-primary);
}


/* ── Journal element subpanel ─────────────────────────────────── */
.journal-type-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.journal-type-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid var(--swatch-border);
  flex-shrink: 0;
}
.journal-type-select {
  flex: 1;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 3px 6px;
  font-size: 12px;
  font-family: inherit;
}
.journal-note-row { align-items: flex-start; }
.journal-note-row textarea {
  flex: 1;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 4px 6px;
  font-size: 11px;
  font-family: inherit;
  resize: vertical;
  min-height: 40px;
}
.journal-note-row textarea:focus {
  outline: none;
  border-color: var(--gold-dim);
}


/* ── Journal edge selector ────────────────────────────────────── */
.journal-edge-selector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 0 2px;
}
.journal-edge-top-row,
.journal-edge-bot-row {
  display: flex;
  justify-content: center;
}
.journal-edge-mid-row {
  display: flex;
  align-items: center;
  gap: 3px;
}
.journal-edge-box {
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--border-light);
  border-radius: 2px;
  background: var(--bg-deep);
}
.journal-edge-multi-row {
  display: flex;
  gap: 3px;
  margin-top: 3px;
}
.journal-edge-btn {
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 3px 7px;
  font-size: 9px;
  font-family: inherit;
  letter-spacing: 0.03em;
  cursor: pointer;
  min-width: 36px;
  text-align: center;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}
.journal-edge-btn:hover {
  color: var(--text-primary);
  border-color: var(--gold-dim);
}
.journal-edge-btn.active {
  background: rgba(var(--gold-rgb), 0.18);
  color: var(--gold);
  border-color: var(--gold);
}


/* ── Export modal ─────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10001; /* above tool overlays (9998) */
}
.modal-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  width: 360px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  flex-shrink: 0;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-panel-alt); }

.modal-section {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.modal-section:last-of-type { border-bottom: none; }

.modal-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.modal-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-primary);
  cursor: pointer;
}
.modal-radio input[type="radio"] { accent-color: var(--gold); }
.modal-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-primary);
  cursor: pointer;
}
.modal-checkbox input[type="checkbox"] { accent-color: var(--gold); }
.modal-hint {
  font-size: 10px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.export-fmt-row { display: flex; gap: 6px; }
.export-fmt-btn {
  flex: 1;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 6px 0;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-align: center;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}
.export-fmt-btn:hover { color: var(--text-primary); border-color: var(--gold-dim); }
.export-fmt-btn.active {
  background: rgba(var(--gold-rgb), 0.18);
  color: var(--gold);
  border-color: var(--gold);
}

.export-slider-row { display: flex; align-items: center; gap: 8px; }
.export-slider-row input[type="range"] { flex: 1; accent-color: var(--gold); }
.export-slider-row span { font-size: 11px; color: var(--text-secondary); min-width: 32px; text-align: right; }

.export-filename-input {
  width: 100%;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  font-size: 12px;
  font-family: var(--font-mono);
}
.export-filename-input:focus { outline: none; border-color: var(--gold-dim); }

.export-progress-text {
  margin: 0 16px;
  padding: 8px 10px;
  background: var(--bg-panel-alt);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--gold);
  text-align: center;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}


/* ── Export toast ─────────────────────────────────────────────── */
.export-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--bg-panel);
  border: 1px solid var(--gold-dim);
  border-radius: 20px;
  padding: 8px 20px;
  font-size: 12px;
  color: var(--text-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 9100;
  pointer-events: none;
  white-space: nowrap;
}
.export-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* ── Layer note preview ───────────────────────────────────────── */
.layer-note-preview {
  display: block;
  font-size: 10px;
  color: var(--text-dim);
  font-style: italic;
  margin-top: 1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}


/* ── Theme switcher ───────────────────────────────────────────── */
#theme-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 4px 0 8px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}
.theme-btn {
  width: 24px;
  height: 24px;
  /* Sunk appearance: dark inset shadow + dim border + slight dark bg */
  background: rgba(0, 0, 0, 0.3);
  border: 1.5px solid var(--border);
  border-radius: 50%;
  padding: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    inset 0 2px 4px rgba(0, 0, 0, 0.55),   /* pressed-in shadow */
    inset 0 1px 2px rgba(0, 0, 0, 0.3);
  transition: border-color 0.15s, box-shadow 0.2s;
}
.theme-btn:hover {
  border-color: var(--border-light);
  box-shadow:
    inset 0 1px 3px rgba(0, 0, 0, 0.4),
    0 0 6px rgba(var(--gold-rgb), 0.2);   /* subtle hover warmth */
}
.theme-btn.active {
  border-color: var(--gold);
  background: rgba(0, 0, 0, 0.2);
  /* gold halo — the lit lantern */
  box-shadow:
    0 0 0 2px rgba(var(--gold-rgb), 0.5),    /* tight ring */
    0 0 14px rgba(var(--gold-rgb), 0.55),    /* outer glow */
    inset 0 1px 2px rgba(0, 0, 0, 0.2);
}
/* Colour swatches are hardcoded — they must always show their own colour */
.theme-swatch {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: block;
  flex-shrink: 0;
}
.theme-swatch.scriptorium   { background: #1A1208; border: 1px solid #C4943A; }
.theme-swatch.parchment     { background: #F2E8D4; border: 1px solid #7A4E10; }
.theme-swatch.high-contrast { background: #000000; border: 1px solid #FFD700; }

/* ─── Layout toggle ───────────────────────────────────────────────────────── */

/* Aa toggle pill — lives in the topbar next to the theme switcher */
#layout-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  padding: 0 10px;
  border-radius: 14px;
  border: 1.5px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  box-shadow:
    inset 0 2px 4px rgba(0, 0, 0, 0.55),
    inset 0 1px 2px rgba(0, 0, 0, 0.3);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, box-shadow 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
#layout-toggle:hover {
  border-color: var(--border-light);
  color: var(--text-primary);
  box-shadow:
    inset 0 1px 3px rgba(0, 0, 0, 0.4),
    0 0 6px rgba(var(--gold-rgb), 0.2);
}
#layout-toggle.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(0, 0, 0, 0.2);
  box-shadow:
    0 0 0 2px rgba(var(--gold-rgb), 0.5),
    0 0 14px rgba(var(--gold-rgb), 0.55),
    inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* ─── Large layout overrides ─────────────────────────────────────────────── */
/* When data-layout="large" is set on <html>, scale all interactive chrome up
   ~20%. Canvas area shrinks as a natural consequence — that's the trade-off. */

html[data-layout="large"] {
  --panel-width:   312px;   /* 240 → 312 (~30%) */
  --toolbar-width: 68px;    /* 52  → 68  (~30%) */
  --topbar-h:      58px;    /* 44  → 58  (~30%) */
  --thumbs-h:      144px;   /* 110 → 144 (~30%) */
  --ruler-size:    30px;    /* 24  → 30  (~25%) */
}

/* Toolbar tool buttons */
html[data-layout="large"] .tool-btn {
  width: 48px;
  height: 48px;
  font-size: 24px;
}
html[data-layout="large"] .tool-btn::before {
  /* active indicator bar — slightly taller to match */
  height: 24px;
}

/* Topbar: logo, nav text, actions */
html[data-layout="large"] #app-logo {
  font-size: 18px;
  gap: 8px;
}
html[data-layout="large"] #app-logo .logo-mark {
  font-size: 22px;
}
html[data-layout="large"] .btn-ghost,
html[data-layout="large"] .btn-primary {
  height: 38px;
  padding: 0 16px;
  font-size: 14px;
}
html[data-layout="large"] .btn-icon {
  width: 38px;
  height: 38px;
  font-size: 20px;
}

/* Theme switcher circles */
html[data-layout="large"] .theme-btn {
  width: 32px;
  height: 32px;
}
html[data-layout="large"] .theme-swatch {
  width: 15px;
  height: 15px;
}

/* Layout toggle pill itself */
html[data-layout="large"] #layout-toggle {
  height: 36px;
  padding: 0 14px;
  font-size: 14px;
}

/* Panels: labels, inputs, section headings */
html[data-layout="large"] .panel-label,
html[data-layout="large"] .panel-section-title,
html[data-layout="large"] label {
  font-size: 14px;
}
html[data-layout="large"] input[type="text"],
html[data-layout="large"] input[type="number"],
html[data-layout="large"] select,
html[data-layout="large"] textarea {
  height: 34px;
  font-size: 14px;
  padding: 0 10px;
}
html[data-layout="large"] input[type="range"] {
  height: 6px;
}

/* Spread thumbnails strip */
html[data-layout="large"] .spread-thumb {
  width: 156px;
  height: 104px;
}
html[data-layout="large"] .spread-thumb-label {
  font-size: 12px;
}


/* ── Upgrade pill button ─────────────────────────────────── */
#btn-upgrade {
  margin-left: 8px;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gold);
  border-color: var(--gold-dim);
  padding: 3px 10px;
}
#btn-upgrade:hover {
  color: var(--gold-hover);
  border-color: var(--gold);
  background: rgba(var(--gold-rgb), 0.08);
}

/* ── Feedback FAB ────────────────────────────────────────── */
#feedback-fab {
  position: fixed;
  bottom: calc(var(--thumbs-h) + 16px);
  right: 16px;
  z-index: 9100;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  color: var(--text-secondary);
  font-family: var(--font-ui);
  font-size: 12px;
  padding: 6px 14px;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
#feedback-fab:hover {
  color: var(--text-primary);
  border-color: var(--gold-dim);
  background: var(--bg-panel);
}

/* ── Feedback panel ──────────────────────────────────────── */
#feedback-panel {
  position: fixed;
  bottom: calc(var(--thumbs-h) + 52px);
  right: 16px;
  z-index: 9200;
  width: 280px;
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0 0 12px;
}
#feedback-panel.hidden { display: none; }

.feedback-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.feedback-panel-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.feedback-panel-close:hover { color: var(--text-primary); background: var(--bg-surface); }

.feedback-category-chips {
  display: flex;
  gap: 6px;
  padding: 0 12px;
  flex-wrap: wrap;
}
.feedback-chip {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-secondary);
  font-family: var(--font-ui);
  font-size: 11px;
  padding: 4px 10px;
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
  white-space: nowrap;
}
.feedback-chip:hover {
  color: var(--text-primary);
  border-color: var(--border-light);
}
.feedback-chip.active {
  background: rgba(var(--gold-rgb), 0.12);
  border-color: var(--gold-dim);
  color: var(--gold);
}

#feedback-message {
  margin: 0 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 12px;
  padding: 8px;
  resize: vertical;
  min-height: 80px;
}
#feedback-message:focus {
  outline: none;
  border-color: var(--gold-dim);
}

#feedback-from {
  margin: 0 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 12px;
  padding: 6px 8px;
}
#feedback-from:focus {
  outline: none;
  border-color: var(--gold-dim);
}
#feedback-from::placeholder,
#feedback-message::placeholder {
  color: var(--text-dim);
}

#feedback-status {
  margin: 0 12px;
  font-size: 12px;
  min-height: 16px;
  color: var(--text-secondary);
}
#feedback-status.success { color: #6dbf7e; }
#feedback-status.error   { color: var(--danger); }

.feedback-panel-footer {
  display: flex;
  justify-content: flex-end;
  padding: 0 12px;
}


/* ── Tool Tooltip ────────────────────────────────────────── */
#tool-tooltip {
  position: fixed;
  z-index: 9500;
  max-width: 220px;
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  padding: 10px 12px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.12s ease;
}
#tool-tooltip.visible {
  opacity: 1;
}
#tool-tooltip.hidden {
  display: none;
}

/* Left-pointing notch for toolbar tooltips */
#tool-tooltip.notch-left::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 50%;
  transform: translateY(-50%);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 6px solid var(--border-light);
}
#tool-tooltip.notch-left::after {
  content: '';
  position: absolute;
  left: -5px;
  top: 50%;
  transform: translateY(-50%);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-right: 5px solid var(--bg-panel);
}

.tooltip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.tooltip-name {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.tooltip-shortcut {
  font-family: var(--font-ui);
  font-size: 10px;
  color: var(--text-dim);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  flex-shrink: 0;
}
.tooltip-desc {
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}
.tooltip-learn {
  display: block;
  margin-top: 7px;
  font-family: var(--font-ui);
  font-size: 11px;
  color: var(--text-dim);
  cursor: default;
  border: none;
  background: none;
  padding: 0;
}
.tooltip-learn:hover {
  color: var(--text-secondary);
}

/* ── Tooltip toggle button ───────────────────────────────── */
.tooltip-toggle-group {
  margin-top: auto;
  border-top: 1px solid var(--border) !important;
  border-bottom: none !important;
  padding-top: 6px !important;
}
#btn-tooltip-toggle {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
  width: 36px;
  height: 36px;
}
#btn-tooltip-toggle.tooltips-on {
  color: var(--gold);
  box-shadow: 0 0 8px rgba(var(--gold-rgb), 0.2);
}
#btn-tooltip-toggle:hover {
  color: var(--text-primary);
  background: rgba(var(--gold-rgb), 0.1);
}