:root {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --fg: #e2e8f0;
  --fg-dim: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --price: #fbbf24;
  --danger: #f87171;
  --radius: 14px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --fg: #0f172a;
    --fg-dim: #475569;
    --accent: #0284c7;
    --accent-strong: #0369a1;
    --price: #b45309;
    --danger: #b91c1c;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
    Cantarell, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: max(env(safe-area-inset-top), 16px) 16px
    max(env(safe-area-inset-bottom), 16px);
}

header h1 {
  margin: 8px 0 4px;
  font-size: 2rem;
}

.sub {
  margin: 0 0 20px;
  color: var(--fg-dim);
}

button {
  appearance: none;
  width: 100%;
  padding: 16px 20px;
  font-size: 1.05rem;
  font-weight: 600;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s ease;
}

button:hover:not(:disabled) {
  background: var(--accent-strong);
}

button:disabled {
  opacity: 0.6;
  cursor: progress;
}

.status {
  margin: 12px 0 0;
  min-height: 1.4em;
  color: var(--fg-dim);
  font-size: 0.95rem;
}

.status.error {
  color: var(--danger);
}

#results {
  margin-top: 24px;
}

#results h2 {
  font-size: 1.2rem;
  margin: 24px 0 8px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

ol.stations {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.station {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-auto-rows: auto;
  column-gap: 14px;
  row-gap: 4px;
  align-items: center;
}

.station.best {
  background: color-mix(in srgb, var(--price) 18%, var(--bg-card));
  outline: 2px solid color-mix(in srgb, var(--price) 60%, transparent);
}

.station .total {
  grid-column: 1 / -1;
  font-size: 0.9rem;
  color: var(--price);
  font-weight: 600;
  margin-top: 2px;
}

.legend {
  margin: 0 0 12px;
  color: var(--fg-dim);
  font-size: 0.85rem;
}

.station .name {
  font-weight: 600;
  font-size: 1.05rem;
  grid-column: 1;
  grid-row: 1;
}

.station .addr {
  color: var(--fg-dim);
  font-size: 0.88rem;
  grid-column: 1;
  grid-row: 2;
}

.station .dist {
  color: var(--fg-dim);
  font-size: 0.85rem;
  grid-column: 1;
  grid-row: 3;
}

.station .price {
  grid-column: 2;
  grid-row: 1 / span 2;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--price);
  white-space: nowrap;
}

.station .nav {
  grid-column: 2;
  grid-row: 3;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--accent);
  font-weight: 600;
  justify-self: end;
}

.station .nav:hover {
  text-decoration: underline;
}

.empty {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: var(--fg-dim);
  font-style: italic;
}

.meta {
  margin-top: 16px;
  color: var(--fg-dim);
  font-size: 0.8rem;
  text-align: center;
}

footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid color-mix(in srgb, var(--fg-dim) 25%, transparent);
  color: var(--fg-dim);
  font-size: 0.78rem;
}

footer a {
  color: var(--accent);
}