:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #111418;
  --sub: #5b6470;
  --line: #e3e6ea;
  --accent: #0b5fff;
  --warn: #b42318;
  --flash: #fff1b8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1013;
    --card: #1a1d22;
    --text: #f2f4f7;
    --sub: #9aa4b2;
    --line: #2a2f37;
    --accent: #6ea0ff;
    --warn: #ff8a80;
    --flash: #4a4220;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
main { max-width: 480px; margin: 0 auto; padding: 12px 12px 32px; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 4px 4px 12px; }
.status { font-size: 14px; color: var(--sub); }
.status .fail { display: block; color: var(--warn); }
button {
  font: inherit; font-size: 15px; font-weight: 600;
  min-height: 44px; padding: 0 16px;
  color: #fff; background: var(--accent);
  border: 0; border-radius: 10px;
}
button:disabled { opacity: .6; }
.notice { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; margin-bottom: 12px; color: var(--warn); font-weight: 600; }
section { background: var(--card); border-radius: 14px; margin-bottom: 16px; overflow: hidden; border: 1px solid var(--line); }
h2 { margin: 0; padding: 12px 16px; font-size: 15px; color: var(--sub); border-bottom: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 4.2rem 1fr auto; align-items: center; gap: 8px; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: 0; }
.name { font-size: 28px; font-weight: 800; }
.dest { font-size: 14px; color: var(--sub); }
.plate { display: block; font-size: 11px; color: var(--sub); margin-top: 2px; }
.eta { font-size: 34px; font-weight: 800; text-align: right; font-variant-numeric: tabular-nums; border-radius: 8px; padding: 0 4px; }
.eta.soon { color: var(--accent); }
.eta.dim { font-size: 20px; font-weight: 600; color: var(--sub); }
.eta.changed { background: var(--flash); transition: background 1s; }
.err { padding: 18px 16px; color: var(--warn); font-weight: 600; }