:root {
  --bg: #f6f5f1;
  --fg: #1f1f1c;
  --muted: #6b6a63;
  --card: #ffffff;
  --border: #d8d6cc;
  --warn: #c9822b;
  --warn-bg: #fbefdf;
  --green: #3f8f4f;
  --amber: #d08a1e;
  --red: #c4432f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a18;
    --fg: #ecebe6;
    --muted: #a3a29a;
    --card: #262623;
    --border: #3a3a35;
    --warn: #d99a4e;
    --warn-bg: #3a2d1c;
    --green: #5cb46c;
    --amber: #e3a446;
    --red: #e0644f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 16px;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.4 system-ui, sans-serif;
}
header p { color: var(--muted); margin-top: 0; }
#columns { display: grid; gap: 24px; }
@media (min-width: 720px) {
  #columns { grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); }
}
h2 { margin: 0 0 8px; }
h3 { font-size: 0.95rem; color: var(--muted); margin: 16px 0 8px; }
.slots { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
.slot {
  display: block;
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
  font-variant-numeric: tabular-nums;
}
.slot.rating-green { border-color: var(--green); }
.slot.rating-amber { border-color: var(--amber); }
.slot.rating-red { border-color: var(--red); }
.slot:hover, .slot:focus-visible { outline: 2px solid var(--fg); outline-offset: 1px; }
.time { display: block; font-weight: 600; }
.weather { display: flex; flex-wrap: wrap; gap: 4px 10px; font-size: 0.875rem; }
.reasons { display: block; margin-top: 4px; font-size: 0.8rem; color: var(--muted); }
.notice { color: var(--muted); }
.banner {
  padding: 10px 12px;
  border: 2px solid var(--warn);
  border-radius: 8px;
  color: var(--fg);
  background: var(--warn-bg);
}