:root {
  color-scheme: light;
  --surface: #fcfcfb;
  --page: #f9f9f7;
  --ink: #0b0b0b;
  --secondary: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --border: rgba(11, 11, 11, 0.10);
  --accent: #2a78d6;
  --accent-ink: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --surface: #1a1a19;
    --page: #0d0d0d;
    --ink: #ffffff;
    --secondary: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
    --accent-ink: #0b0b0b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.5;
}

main {
  max-width: 840px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

header h1 {
  font-size: 32px;
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}
.tag {
  color: var(--secondary);
  margin: 0;
  max-width: 60ch;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 20px 28px;
  margin: 28px 0 8px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.stat-tile { min-width: 120px; }
.stat-value {
  font-size: 34px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.stat-of { font-size: 18px; color: var(--muted); font-weight: 400; }
.stat-label { color: var(--muted); font-size: 13px; }
.trend-line {
  flex-basis: 100%;
  margin: 4px 0 0;
  color: var(--secondary);
}

.chart-wrap { margin: 20px 0; }
.chart-legend {
  margin: 8px 4px 0;
  font-size: 12px;
  color: var(--muted);
}
.chart-legend strong { color: var(--secondary); }
.chart-frame {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}
#chart {
  width: 100%;
  height: 340px;
  display: block;
}
.tooltip {
  position: absolute;
  display: none;
  transform: translate(-50%, -120%);
  background: var(--ink);
  color: var(--surface);
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.4;
  pointer-events: none;
  white-space: nowrap;
  z-index: 2;
}

.share-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 18px 0 30px;
}
.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  background: var(--surface);
}
.btn:hover { border-color: var(--accent); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.picker-controls {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 10px;
}
.picker-controls h2 {
  font-size: 17px;
  margin: 0;
}
.picker-buttons { display: flex; gap: 12px; }
.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

.picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
}
.lab-group {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px 12px;
  margin: 0;
  background: var(--surface);
}
.lab-group legend {
  padding: 0 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.model-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 5px 2px;
  cursor: pointer;
  font-size: 13px;
}
.model-row input { margin-top: 3px; flex-shrink: 0; }
.model-name { font-weight: 600; }
.model-blurb { color: var(--muted); }

.forget-wrap { margin-top: 30px; }
.forget-picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px 12px;
  background: var(--surface);
}
.forget-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 2px;
  cursor: pointer;
  font-size: 13px;
}
.forget-row input { flex-shrink: 0; }
.forget-text { flex: 1; }
.forget-slots {
  color: var(--accent);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 12px;
}
.forget-note {
  margin: 8px 4px 0;
  color: var(--secondary);
  font-size: 13px;
}

footer {
  margin-top: 40px;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
footer a { color: var(--secondary); }
footer p { margin: 4px 0; }