/* Dark theme only */
:root {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --context: #4a4a46;
  --border: rgba(255, 255, 255, 0.10);
  --accent: #3987e5;
  --wash: rgba(57, 135, 229, 0.14);
  --band: rgba(217, 89, 38, 0.10);
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --max: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--ink);
  font: 14px/1.45 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
[hidden] { display: none !important; }

/* Centered column so charts don't stretch on wide screens */
.top, .filters, main, .foot { max-width: var(--max); margin-left: auto; margin-right: auto; }

/* Header */
.top {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  padding: 16px 24px 12px;
}
.brand { flex: 1 1 280px; min-width: 0; }   /* subtitle wraps before the tabs or download button do */
.brand h1 { font-size: 18px; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
.brand .sub { margin: 2px 0 0; color: var(--muted); font-size: 12.5px; }
.tabs { display: flex; gap: 2px; margin-left: auto; }
.tabs button {
  font: inherit; background: none; border: 0; color: var(--ink-2);
  padding: 7px 12px; border-radius: 8px; cursor: pointer; white-space: nowrap;
}
.tabs button:hover { background: var(--wash); }
.tabs button[aria-selected="true"] { color: var(--ink); background: var(--surface); box-shadow: 0 0 0 1px var(--border); font-weight: 600; }

.download {
  font-size: 13px; color: var(--ink); text-decoration: none; white-space: nowrap;
  border: 1px solid var(--border); background: var(--wash); border-radius: 8px; padding: 6px 12px;
}
.download:hover { border-color: var(--accent); }

/* Buttons & inputs */
.icon-btn {
  font: inherit; font-size: 16px; line-height: 1; width: 32px; height: 32px;
  border: 1px solid var(--border); background: var(--surface); color: var(--ink-2);
  border-radius: 8px; cursor: pointer;
}
.icon-btn.small { width: 28px; height: 28px; font-size: 14px; }
.icon-btn:hover { color: var(--ink); }
.link-btn { font: inherit; background: none; border: 0; color: var(--accent); cursor: pointer; padding: 4px 6px; border-radius: 6px; }
.link-btn:hover { background: var(--wash); }
select, input[type="range"] { font: inherit; color: var(--ink); }
select {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 5px 8px; max-width: 290px;
}
.field { display: inline-flex; align-items: center; gap: 8px; }
.label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.val { font-variant-numeric: tabular-nums; color: var(--ink-2); min-width: 2ch; }
.check { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2); cursor: pointer; user-select: none; }
.check input { accent-color: var(--accent); margin: 0; }

.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); }
.seg button { font: inherit; border: 0; background: none; color: var(--ink-2); padding: 5px 10px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button[aria-pressed="true"] { background: var(--wash); color: var(--ink); font-weight: 600; }

.chips { display: inline-flex; gap: 4px; }
.chip {
  font: inherit; font-size: 13px; border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); padding: 3px 10px; border-radius: 999px; cursor: pointer;
}
.chip[aria-pressed="true"] { color: var(--ink); border-color: var(--accent); background: var(--wash); }

/* Filter row & controls */
.filters, .controls {
  display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px;
  padding: 0 24px;
}
.filters { padding-bottom: 12px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.filters .count { color: var(--muted); margin-left: auto; font-variant-numeric: tabular-nums; }
.controls { margin-bottom: 12px; }
/* Options that belong together get their own full-width row */
.check-row { display: flex; flex-wrap: wrap; gap: 20px; flex-basis: 100%; }

main { padding: 0 24px 24px; }
main .controls { padding: 0; }

/* Cards & layout */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 16px; align-items: start; }
.pulse-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 16px; align-items: stretch; }
/* Same header height in both cards so the two plots line up */
.pulse-grid .chart-head { height: 34px; align-items: center; margin-bottom: 8px; }
.card-title { font-size: 13px; font-weight: 600; margin: 0 0 2px; }
.card-sub { color: var(--muted); font-size: 12px; margin: 0 0 8px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.chart-card { padding: 16px 16px 12px; min-width: 0; }
.chart-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; min-height: 22px; margin-bottom: 4px; }
.stats { color: var(--ink-2); font-size: 13px; font-variant-numeric: tabular-nums; }
.stats b { color: var(--ink); font-weight: 600; }
.stats span + span { margin-left: 14px; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 14px; color: var(--ink-2); font-size: 12.5px; align-items: center; }
.legend .item { display: inline-flex; align-items: center; gap: 6px; }
.legend .sw { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.legend .sw.line { width: 16px; height: 2px; border-radius: 1px; }
.legend .ramp { width: 120px; height: 8px; border-radius: 4px; }
.chart { position: relative; width: 100%; }
.chart svg { display: block; width: 100%; margin: 0 auto; overflow: visible; }
.chart-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 6px; }
.note { color: var(--muted); font-size: 12px; }

/* SVG chart ink */
.grid line { stroke: var(--grid); stroke-width: 1; shape-rendering: crispEdges; }
.axis line, .axis path { stroke: var(--axis); shape-rendering: crispEdges; }
.axis text, .tick text { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.axis-title { fill: var(--ink-2); font-size: 12px; }
.panel-title { fill: var(--ink-2); font-size: 12px; font-weight: 600; }
.pt { stroke: var(--surface); stroke-width: 1.5; }
.pt.dim { opacity: 0.18; }
.sel-ring { fill: none; stroke: var(--ink); stroke-width: 2; }
.hover-ring { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.trace { fill: none; stroke: var(--ink); stroke-width: 1.5; opacity: 0.7; }
.fit { stroke: var(--ink-2); stroke-width: 1.5; fill: none; }
.bar { fill: var(--accent); }
.bar:hover, .bar.on { opacity: 0.75; }
.med { stroke: var(--ink); stroke-width: 1.5; }
.med-label { fill: var(--ink-2); font-size: 11px; }
.heat-band { fill: var(--band); }
.band-label { fill: var(--muted); font-size: 11px; }
.curve { fill: none; stroke-width: 2; stroke-linejoin: round; }
.curve.model { stroke-width: 1.5; stroke-dasharray: 4 3; opacity: 0.9; }
.curve-label { font-size: 11px; fill: var(--ink-2); paint-order: stroke; stroke: var(--surface); stroke-width: 3px; }
.crosshair { stroke: var(--axis); stroke-width: 1; }
.ctx { fill: var(--context); }
.ref-line { stroke: var(--ink-2); stroke-width: 1.5; stroke-dasharray: 5 4; fill: none; }
.ref-label { fill: var(--ink-2); font-size: 11px; }
.peak { stroke: var(--surface); stroke-width: 1.5; }
.tri-grid line { stroke: var(--grid); stroke-width: 0.75; opacity: 0.6; }
.tri-edge { fill: none; stroke: var(--ink-2); stroke-width: 1.5; }
.tri-class { fill: none; stroke: var(--ink-2); stroke-width: 1.25; stroke-linejoin: round; opacity: 0.75; }
.tri-class.on { fill: var(--wash); opacity: 1; }
.tri-class-label { fill: var(--ink-2); font-size: 11px; text-anchor: middle; pointer-events: none;
  paint-order: stroke; stroke: var(--surface); stroke-width: 3px; }

/* Core photo atlas */
.atlas-wrap {
  position: relative; width: 100%; aspect-ratio: 12500 / 9670; max-height: 82vh;
  background: #000; border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.atlas-wrap:fullscreen { max-height: none; border-radius: 0; border: 0; }
.atlas-preview, .atlas-viewer { position: absolute; inset: 0; width: 100%; height: 100%; }
.atlas-preview { object-fit: contain; transition: opacity 0.4s; pointer-events: none; z-index: 1; }
.atlas-preview.done { opacity: 0; }
.atlas-tools { position: absolute; top: 10px; right: 10px; display: flex; flex-direction: column; gap: 6px; z-index: 2; }
.atlas-tools .icon-btn { background: rgba(26, 26, 25, 0.85); }
.atlas-status {
  position: absolute; left: 12px; bottom: 10px; z-index: 2; font-size: 12px; color: var(--ink-2);
  background: rgba(26, 26, 25, 0.85); padding: 3px 8px; border-radius: 6px; transition: opacity 0.4s;
}
.atlas-status.done { opacity: 0; }
.atlas-caption { margin: 8px 0 0; }
#aFull { margin-left: auto; }

/* Detail panel */
.detail { padding: 16px; font-size: 13px; position: sticky; top: 12px; }
.detail .empty { color: var(--muted); }
.detail h2 { font-size: 15px; margin: 0 0 2px; font-weight: 600; }
.detail .meta { color: var(--muted); font-size: 12px; margin-bottom: 12px; }
.detail h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin: 14px 0 6px; font-weight: 600; }
.swatches { display: flex; gap: 10px; }
.swatch { flex: 1; }
.swatch .tile { height: 44px; border-radius: 8px; box-shadow: inset 0 0 0 1px var(--border); }
.swatch .cap { font-size: 11.5px; color: var(--ink-2); margin-top: 4px; font-variant-numeric: tabular-nums; }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 3px 12px; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.kv dd .u { color: var(--muted); font-size: 11px; margin-left: 3px; }
.detail .go { margin-top: 12px; width: 100%; font: inherit; border: 1px solid var(--border); background: var(--wash); color: var(--ink); border-radius: 8px; padding: 7px; cursor: pointer; }
.detail .go:hover { border-color: var(--accent); }
.detail .go + .go { margin-top: 8px; }
.mini svg { display: block; width: 100%; }
.mini-cap { font-size: 11.5px; color: var(--ink-2); margin-top: 2px; line-height: 1.5; font-variant-numeric: tabular-nums; }

/* Tables */
.table-wrap { margin-top: 12px; max-height: 340px; overflow: auto; border-top: 1px solid var(--border); }
.table-wrap.open { max-height: none; }
table { border-collapse: collapse; width: 100%; font-size: 12.5px; font-variant-numeric: tabular-nums; }
th, td { padding: 6px 10px; text-align: right; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; position: sticky; top: 0; background: var(--surface); }
th:first-child, td:first-child, td.l, th.l { text-align: left; }
tbody tr:hover { background: var(--wash); }
td .sw { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 8px; vertical-align: -1px; }
.flag { color: var(--muted); font-size: 11px; }

/* Tooltip */
.tooltip {
  position: fixed; z-index: 10; pointer-events: none;
  background: var(--surface); color: var(--ink); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font-size: 12.5px; line-height: 1.4;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); max-width: 280px;
}
.tooltip .t { font-weight: 600; margin-bottom: 2px; }
.tooltip .r { display: flex; justify-content: space-between; gap: 14px; font-variant-numeric: tabular-nums; }
.tooltip .r span:first-child { color: var(--ink-2); }
.tooltip .sw { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; }
.tooltip .tile { display: inline-block; width: 14px; height: 14px; border-radius: 3px; vertical-align: -3px; margin-right: 6px; box-shadow: inset 0 0 0 1px var(--border); }

.foot { padding: 0 24px 24px; color: var(--muted); font-size: 12px; }
.foot p { margin: 0 0 6px; max-width: 960px; padding-left: 2em; text-indent: -2em; }
.foot .refs-title { padding-left: 0; text-indent: 0; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }

@media (max-width: 900px) {
  .layout, .pulse-grid { grid-template-columns: 1fr; }
  .detail { position: static; }
}
@media (max-width: 600px) {
  .top, .filters, main, .foot { padding-left: 16px; padding-right: 16px; }
  .tabs { margin-left: 0; width: 100%; overflow-x: auto; }
  .filters .count { margin-left: 0; }
  .atlas-tools { top: 6px; right: 6px; gap: 4px; }
  .atlas-tools .icon-btn { width: 26px; height: 26px; font-size: 13px; }
  #aFull { margin-left: 0; }
  select { max-width: 200px; }
}