:root {
  color-scheme: light dark;
  --surface-1: #fcfcfb; --surface-page: #f9f9f7;
  --text-primary: #0b0b0b; --text-secondary: #52514e; --text-muted: #898781;
  --border: #e1e0d9; --border-strong: #c3c2b7;
  --card: #ffffff;
  --accent: #2a78d6; --accent-2: #eb6834;
  --good: #006300; --bad: #d03b3b;
  --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100;
  --series-5: #e87ba4; --series-6: #008300; --series-7: #4a3aa7; --series-8: #e34948;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    --surface-1: #1a1a19; --surface-page: #0d0d0d;
    --text-primary: #ffffff; --text-secondary: #c3c2b7; --text-muted: #898781;
    --border: #2c2c2a; --border-strong: #383835;
    --card: #202020;
    --accent: #3987e5; --accent-2: #d95926;
    --good: #0ca30c; --bad: #e66767;
    --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
    --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
  }
}
:root[data-theme="dark"] {
  --surface-1: #1a1a19; --surface-page: #0d0d0d;
  --text-primary: #ffffff; --text-secondary: #c3c2b7; --text-muted: #898781;
  --border: #2c2c2a; --border-strong: #383835;
  --card: #202020;
  --accent: #3987e5; --accent-2: #d95926;
  --good: #0ca30c; --bad: #e66767;
  --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
  --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--surface-page); color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px; line-height: 1.45;
}
a { color: var(--accent); }
code { background: var(--surface-1); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; }

header.top {
  position: sticky; top: 0; z-index: 20; background: var(--surface-page);
  border-bottom: 1px solid var(--border); padding: 0.7rem 1.25rem;
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
}
header.top h1 { font-size: 1.05rem; margin: 0; font-weight: 600; }
header.top nav { display: flex; gap: 0.9rem; font-size: 0.85rem; }
header.top nav a { color: var(--text-secondary); text-decoration: none; padding: 3px 0; border-bottom: 2px solid transparent; }
header.top nav a.active, header.top nav a:hover { color: var(--text-primary); border-color: var(--accent); }
header.top .spacer { flex: 1; }
header.top .meta { color: var(--text-muted); font-size: 0.8rem; }

main { padding: 1rem 1.25rem 3rem; max-width: 1600px; margin: 0 auto; }

.panel {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 1rem 1.1rem; margin-bottom: 1rem;
}
.panel h2 { font-size: 0.95rem; margin: 0 0 0.7rem; display: flex; align-items: center; gap: 0.5rem; }
.panel h2 .hint { font-weight: 400; color: var(--text-muted); font-size: 0.78rem; }

.dataset-picker { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.7rem; }
.dataset-picker button {
  border: 1px solid var(--border); background: var(--surface-1); color: var(--text-secondary);
  border-radius: 999px; padding: 5px 12px; font-size: 0.8rem; cursor: pointer;
}
.dataset-picker button.active { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.dataset-desc { color: var(--text-muted); font-size: 0.82rem; margin: 0 0 0.8rem; }

.filters-grid { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.filter-box { border: 1px solid var(--border); border-radius: 8px; min-width: 160px; max-width: 240px; }
.filter-box summary {
  list-style: none; cursor: pointer; padding: 6px 10px; font-size: 0.8rem;
  display: flex; justify-content: space-between; gap: 0.5rem; color: var(--text-secondary);
}
.filter-box summary::-webkit-details-marker { display: none; }
.filter-box summary .n { color: var(--text-muted); }
.filter-box[open] summary { border-bottom: 1px solid var(--border); }
.filter-box .opts { max-height: 220px; overflow: auto; padding: 6px 8px; }
.filter-box .opts input[type="search"] {
  width: 100%; margin-bottom: 4px; padding: 3px 6px; font-size: 0.78rem;
  border: 1px solid var(--border); border-radius: 5px; background: var(--surface-1); color: var(--text-primary);
}
.filter-box label { display: flex; align-items: center; gap: 5px; font-size: 0.78rem; padding: 2px 0; cursor: pointer; }
.filter-box .row-actions { display: flex; gap: 8px; padding: 4px 2px 0; font-size: 0.72rem; }
.filter-box .row-actions a { cursor: pointer; }
.filters-toolbar { display: flex; align-items: center; gap: 0.8rem; margin-top: 0.6rem; font-size: 0.8rem; color: var(--text-muted); }
.filters-toolbar button { font-size: 0.78rem; padding: 4px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface-1); color: var(--text-secondary); cursor: pointer; }

.controls-row { display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; align-items: flex-end; margin-bottom: 0.8rem; }
.control { display: flex; flex-direction: column; gap: 3px; font-size: 0.75rem; color: var(--text-muted); }
.control select, .control input[type="number"] {
  font-size: 0.82rem; padding: 5px 7px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--surface-1); color: var(--text-primary); min-width: 140px;
}
.control label.check { flex-direction: row; align-items: center; gap: 5px; font-size: 0.8rem; color: var(--text-secondary); }

.chart-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 0.8rem; }
.chart-cell { border: 1px solid var(--border); border-radius: 8px; padding: 0.4rem; overflow: hidden; }
.chart-cell .facet-title { font-size: 0.78rem; color: var(--text-secondary); text-align: center; padding: 2px 0 0; }
.chart-empty { color: var(--text-muted); font-size: 0.85rem; padding: 2rem 1rem; text-align: center; }

table.pivot { border-collapse: collapse; font-size: 0.78rem; }
table.pivot th, table.pivot td { border: 1px solid var(--border); padding: 4px 8px; text-align: right; white-space: nowrap; }
table.pivot th { background: var(--surface-1); color: var(--text-secondary); font-weight: 600; text-align: center; position: sticky; }
table.pivot th.rowhead { text-align: left; position: sticky; left: 0; background: var(--surface-1); z-index: 2; }
table.pivot td { font-variant-numeric: tabular-nums; color: #0b0b0b; }
table.pivot .cellwrap { overflow: auto; max-width: 100%; }
.pivot-wrap { overflow: auto; max-width: 100%; }
.pivot-legend { display: flex; align-items: center; gap: 6px; font-size: 0.75rem; color: var(--text-muted); margin-top: 0.5rem; }
.pivot-legend .swatch { display: inline-block; width: 90px; height: 10px; border-radius: 3px; border: 1px solid var(--border); }

table.raw { border-collapse: collapse; width: 100%; font-size: 0.78rem; font-variant-numeric: tabular-nums; }
table.raw th, table.raw td { border-bottom: 1px solid var(--border); padding: 4px 8px; text-align: left; white-space: nowrap; }
table.raw th { cursor: pointer; color: var(--text-secondary); position: sticky; top: 0; background: var(--card); user-select: none; }
table.raw th .arrow { color: var(--accent); }
table.raw tbody tr:hover { background: var(--surface-1); }
.raw-wrap { overflow: auto; max-height: 560px; border: 1px solid var(--border); border-radius: 8px; }
.raw-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.6rem; gap: 1rem; flex-wrap: wrap; }
.raw-toolbar .count { font-size: 0.8rem; color: var(--text-muted); }
.raw-toolbar button { font-size: 0.78rem; padding: 5px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface-1); color: var(--text-secondary); cursor: pointer; }
.pager { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; }
.pager button { padding: 3px 9px; }
.pager button:disabled { opacity: 0.4; cursor: default; }

.cards { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 1rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 0.6rem 0.9rem; min-width: 120px; }
.card .label { color: var(--text-muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: .04em; }
.card .value { font-size: 1.05rem; font-weight: 600; margin-top: 2px; }

.index-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0.8rem; }
.index-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; text-decoration: none; color: var(--text-primary); display: block; }
.index-card h3 { margin: 0 0 4px; font-size: 0.95rem; }
.index-card p { margin: 0 0 8px; color: var(--text-secondary); font-size: 0.82rem; }
.index-card .stat { color: var(--text-muted); font-size: 0.76rem; }
.index-card:hover { border-color: var(--accent); }

.loading { color: var(--text-muted); padding: 1.5rem; text-align: center; font-size: 0.85rem; }
.js-tooltip {
  position: fixed; pointer-events: none; z-index: 100; background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font-size: 0.78rem; line-height: 1.4; box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  display: none; max-width: 320px; color: var(--text-primary);
}

.help-icon {
  display: inline-block; color: var(--text-muted); cursor: help; font-size: 0.85em;
  border-radius: 50%; line-height: 1; vertical-align: middle;
}
.help-icon:hover, .help-icon:focus { color: var(--accent); outline: none; }

.metric-caption { color: var(--text-secondary); font-size: 0.8rem; margin: -0.3rem 0 0.6rem; }

.question-block {
  background: var(--card); border: 1px solid var(--border); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 0.6rem 1rem; margin-bottom: 1rem;
}
.question-block .question-label {
  display: block; color: var(--text-muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: .04em;
}
.question-block p { margin: 3px 0 0; font-size: 0.92rem; color: var(--text-primary); }

/* Scenes gallery (assets/scenes.js) */
.scenes-controls-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.scenes-controls-row label { font-size: 0.82rem; color: var(--text-secondary); display: flex; align-items: center; gap: 5px; }
.scenes-controls-row label.disabled { opacity: 0.45; }
.scenes-controls-row select {
  font-size: 0.82rem; padding: 4px 7px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--surface-1); color: var(--text-primary);
}
.mode-toggle { display: flex; gap: 0.4rem; }
.mode-toggle button {
  border: 1px solid var(--border); background: var(--surface-1); color: var(--text-secondary);
  border-radius: 999px; padding: 4px 12px; font-size: 0.8rem; cursor: pointer;
}
.mode-toggle button.active { border-color: var(--accent); color: var(--accent); font-weight: 600; }

.scenes-cards { display: flex; flex-direction: column; gap: 1rem; }
.scene-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 0.8rem 1rem; }
.scene-card-header { font-size: 0.85rem; margin-bottom: 0.6rem; color: var(--text-secondary); }
.scene-card-header .stat { color: var(--text-muted); }

.scene-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.scene-col { flex: 1 1 220px; min-width: 200px; max-width: 420px; }
.scene-col.wide { flex-basis: 100%; max-width: 640px; margin: 0 auto; }
.scene-method-label { font-size: 0.78rem; margin-bottom: 4px; color: var(--text-secondary); }
.scene-method-label .stat { color: var(--text-muted); font-size: 0.74rem; display: block; }

.image-stack { position: relative; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface-1); }
.image-stack img { display: block; width: 100%; height: auto; }
.image-stack .overlay-img { position: absolute; inset: 0; transition: opacity 0.15s ease; }
.flicker-stack { cursor: default; }
.flicker-caption {
  position: absolute; left: 6px; bottom: 6px; background: rgba(0,0,0,0.6); color: #fff;
  font-size: 0.75rem; padding: 2px 8px; border-radius: 999px;
}