/* Palette per dataviz skill (references/palette.md), validated for
   light/dark contrast and CVD-safe adjacency. */
:root {
  color-scheme: light;
  --bg: #f9f9f7;          /* page plane */
  --surface: #fcfcfb;     /* chart / card surface */
  --fg: #0b0b0b;          /* primary ink */
  --muted-2: #52514e;     /* secondary ink */
  --muted: #898781;       /* muted ink — axis/labels */
  --border: rgba(11, 11, 11, 0.10);
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --accent: #2a78d6;      /* categorical slot 1 / sequential base */
  --ok: #0ca30c;          /* status: good */
  --warn: #fab219;        /* status: warning */
  --warn-text: #8a5a00;   /* warning ink — clears contrast on light surface
                              (the raw status hex is sub-3:1 on light; the
                              relief rule is icon+label, applied here too) */
  --critical: #d03b3b;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --bg: #0d0d0d;
    --surface: #1a1a19;
    --fg: #ffffff;
    --muted-2: #c3c2b7;
    --muted: #898781;
    --border: rgba(255, 255, 255, 0.10);
    --gridline: #2c2c2a;
    --baseline: #383835;
    --accent: #3987e5;
    --ok: #0ca30c;
    --warn: #fab219;
    --warn-text: #fab219;
    --critical: #e66767;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d0d0d;
  --surface: #1a1a19;
  --fg: #ffffff;
  --muted-2: #c3c2b7;
  --muted: #898781;
  --border: rgba(255, 255, 255, 0.10);
  --gridline: #2c2c2a;
  --baseline: #383835;
  --accent: #3987e5;
  --ok: #0ca30c;
  --warn: #fab219;
  --warn-text: #fab219;
  --critical: #e66767;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header, main, footer { max-width: 800px; margin: 0 auto; padding: 0 20px; }
header { padding-top: 32px; }
h1 { margin: 0; font-size: 1.6rem; }
h2 { font-size: 1.1rem; margin: 28px 0 12px; }
.meta { color: var(--muted-2); font-size: 0.85rem; }

.tiles {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px; margin-top: 20px;
}
.tile {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 16px;
}
.tile-label { color: var(--muted-2); font-size: 0.8rem; }
.tile-value {
  font-size: 1.4rem; font-weight: 650; margin-top: 4px;
  font-variant-numeric: proportional-nums;
}
.tile-sub { color: var(--muted); font-size: 0.8rem; margin-top: 2px; }

ul { padding-left: 0; list-style: none; }

.waste { padding: 10px 0; border-bottom: 1px solid var(--border); }
.waste-detail { color: var(--muted-2); }
.waste-save { color: var(--fg); font-weight: 600; }

.deltas .delta {
  padding: 6px 0; display: flex; align-items: baseline; gap: 8px;
}
.delta-icon { flex: none; }
.delta-text { color: var(--fg); }
.delta.ok .delta-text { color: var(--ok); font-weight: 600; }
.delta.warn .delta-text { color: var(--warn-text); font-weight: 600; }
.verdict { font-weight: 650; margin-top: 8px; }

.chart { width: 100%; height: auto; background: var(--surface);
  border: 1px solid var(--border); border-radius: 10px; }
.chart .bar { fill: var(--accent); }
.chart .baseline { stroke: var(--baseline); stroke-width: 1; }
.chart .axis {
  fill: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums;
}
.chart .bar-value {
  fill: var(--muted-2); font-size: 11px; font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.error {
  color: var(--critical); background: var(--surface); padding: 14px;
  border-radius: 10px; border: 1px solid var(--border);
}
footer { margin: 40px auto 32px; }