:root {
  --bg: #f4f1ea;
  --fg: #1a1a1a;
  --muted: #6a6a6a;
  --panel: #ffffff;
  --border: #d8d4cb;
  --accent: #c94a3d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.45;
}

header {
  padding: 24px 32px 8px;
  max-width: 1400px;
  margin: 0 auto;
}

h1 {
  margin: 0 0 4px;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.subtitle {
  margin: 0;
  color: var(--muted);
}

#meta {
  margin-left: 8px;
  font-variant-numeric: tabular-nums;
}

.toggles {
  margin-top: 12px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
#mode-toggle, #looks-toggle {
  display: inline-flex;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px;
}
#mode-toggle button, #looks-toggle button {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 6px 14px;
  font: inherit;
  color: var(--muted);
  border-radius: 4px;
  cursor: pointer;
}
#mode-toggle button.active, #looks-toggle button.active {
  background: var(--fg);
  color: #fff;
}

#mode-explanation {
  margin: 8px auto 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--muted);
  max-width: 580px;
  font-style: italic;
  text-align: center;
}

#year-slider-wrap {
  margin-top: 14px;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
#year-slider-wrap label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}
#year-slider-wrap label #year-label {
  color: var(--fg);
  font-variant-numeric: tabular-nums;
  margin-left: 4px;
}
#year-slider {
  width: 100%;
}
#year-stops {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  padding: 0 2px;
}


main {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  padding: 16px 32px 32px;
  max-width: 1400px;
  margin: 0 auto;
  align-items: start;
}

#canvas-wrap {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  cursor: pointer;
}

#tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(20, 20, 20, 0.94);
  color: #fff;
  padding: 8px 10px;
  border-radius: 4px;
  font-size: 12px;
  line-height: 1.4;
  max-width: 240px;
  z-index: 10;
  transform: translate(12px, 12px);
}
#tooltip strong { display: block; margin-bottom: 2px; }
#tooltip .muted { color: #b8b8b8; }
#tooltip ul { margin: 4px 0 0; padding-left: 14px; }

#legend {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
}

#legend h2 {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
}

.legend-group { margin-bottom: 14px; }
.legend-group.dim { opacity: 0.55; }
.legend-divider {
  margin: 14px 0 8px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--muted);
}
.legend-group h3 {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

.legend-row {
  display: grid;
  grid-template-columns: 16px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 2px 0;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}
.legend-row:hover { background: rgba(0,0,0,0.04); }
.legend-row.selected {
  background: rgba(26, 26, 26, 0.85);
  color: #fff;
  border-radius: 3px;
}
.legend-row.selected .pct { color: rgba(255,255,255,0.7); }

.legend-detail {
  font-size: 11px;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 3px;
  margin: 2px 0 6px;
  font-variant-numeric: tabular-nums;
}
.legend-detail .detail-row {
  display: flex;
  justify-content: space-between;
  padding: 1px 0;
}
.legend-detail .delta {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px solid rgba(0,0,0,0.1);
  font-weight: 600;
}
.legend-detail .delta.up { color: #2d8c4c; }
.legend-detail .delta.down { color: #c94a3d; }
.swatch {
  width: 14px;
  height: 14px;
  border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.1);
}
.legend-row .pct {
  color: var(--muted);
  font-size: 11px;
}

#controls {
  padding: 16px 32px 8px;
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

footer {
  padding: 12px 32px 24px;
  max-width: 1400px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 12px;
}
footer a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(0, 0, 0, 0.2);
  text-underline-offset: 2px;
}
footer a:hover {
  color: var(--fg);
  text-decoration-color: currentColor;
}

/* ───── Mobile / narrow viewport ───── */
@media (max-width: 768px) {
  header { padding: 16px 16px 4px; }
  main {
    padding: 12px 16px 16px;
    grid-template-columns: 1fr;
    gap: 16px;
  }
  body.visual-look main { padding-top: 4px; }
  body.visual-look h1 { font-size: 28px; }
  body.visual-look .subtitle { font-size: 14px; }
  h1 { font-size: 24px; }
  #legend {
    position: static;
    margin-top: 16px;
    max-height: none;
  }
  #mode-toggle button,
  #looks-toggle button {
    padding: 10px 14px;
    font-size: 13px;
    min-height: 44px;
  }
  .toggles { gap: 8px; }
  #year-slider-wrap { max-width: 100%; }
  #year-slider { height: 28px; }
  #controls { padding: 12px 16px 8px; }
  footer { padding: 8px 16px 16px; }
  #summary { font-size: 22px; }
  #mode-explanation { font-size: 11px; }
  .legend-row {
    padding: 8px 0;
    min-height: 44px;
    grid-template-columns: 18px 1fr auto;
  }
  .swatch { width: 16px; height: 16px; }
  #canvas-wrap { padding: 6px; }
  /* Force canvas to fit viewport on mobile, overriding the inline width
     set in JS for desktop. */
  canvas {
    width: 100% !important;
    height: auto !important;
  }
}

@media (max-width: 480px) {
  body.visual-look h1 { font-size: 22px; }
  h1 { font-size: 20px; }
  #summary { font-size: 18px; }
  #summary .sub { font-size: 14px; }
  #mode-toggle button,
  #looks-toggle button { padding: 8px 10px; font-size: 12px; }
}

/* Visual mode — light, calmer, less data-heavy. Inherits the default light
   palette and only overrides layout (single column, no card border). */
body.visual-look header { padding-bottom: 0; }
body.visual-look h1 { font-size: 38px; font-weight: 800; }
body.visual-look .subtitle { font-size: 18px; }
body.visual-look #meta { display: none; }
body.visual-look main {
  grid-template-columns: 1fr;
  padding-top: 0;
}
body.visual-look #legend { display: none; }
body.visual-look #canvas-wrap {
  border: 0;
  background: transparent;
  padding: 0;
}

#summary {
  padding: 8px 0 0;
  margin: 0 0 0 auto;
  font-size: 28px;
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.4px;
  color: var(--fg);
  max-width: 720px;
  text-align: right;
}
#summary .accent { color: var(--accent); }
#summary .sub {
  display: block;
  font-size: 18px;
  font-weight: 400;
  color: var(--muted);
  margin-top: 4px;
  letter-spacing: 0;
}
#summary .sub.muted {
  color: #b3aea0;
  font-size: 13px;
}