:root {
  /* SL varumärke */
  --sl-blue: #003f87;        /* SL Blå — primär accent, header, primära knappar */
  --sl-cyan: #00a0df;        /* SL Ljusblå/cyan — sekundär, tonplattor */
  --sl-gray: #58595b;        /* SL Grå — sekundär text */
  --ink: #111;
  --bg: #f4f5f4;
  --card: #fff;
  --line: #e0e2e0;
  /* Tunnelbanans linjefärger — informationsbärande, aldrig godtyckliga */
  --line-green: #00843f;     /* Gröna linjen T17/18/19 — 4.8:1 mot vit text */
  --line-red: #e4002b;      /* Röda linjen T13/14 */
  --line-blue: #003f87;     /* Blå linjen T10/11 */
  --line-other: #58595b;    /* Okänd/övrig linje */
  --group-head: #f0f2f0;
  --hover: #e7effa;
  --error-bg: #fdecea;
  --error-fg: #a3332b;
  --info-bg: #e8f5ee;
  --info-fg: #0d6b3d;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.4;
}

.top {
  background: var(--sl-blue);
  color: #fff;
  padding: 20px 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: 50%;
  background: #fff;
  color: var(--sl-blue);
  font-weight: 800;
  font-size: 20px;
}
.top h1 { margin: 0; font-size: 22px; }
.tagline { margin: 4px 0 0; font-size: 14px; }

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.card h2 { margin: 0 0 12px; font-size: 16px; }

.search-wrap { position: relative; }
input[type="search"] {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
}
.results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  max-height: 260px;
  overflow-y: auto;
  z-index: 10;
}
.result {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  border: 0;
  background: none;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  cursor: pointer;
}
.result:last-child { border-bottom: 0; }
.result:hover, .result:focus { background: var(--hover); }

.muted { color: var(--sl-gray); font-size: 14px; }
.message {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
}
.message.error { background: var(--error-bg); color: var(--error-fg); }
.message.info { background: var(--info-bg); color: var(--info-fg); }

.board-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}
.board-header h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--sl-gray);
  letter-spacing: 0.05em;
}
.station-name { font-size: 18px; font-weight: 700; color: var(--sl-blue); }

.groups { display: grid; gap: 12px; }
.group {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.group-head {
  margin: 0;
  padding: 8px 12px;
  background: var(--group-head);
  font-size: 14px;
  font-weight: 500;
}
.home-badge {
  display: inline-block;
  margin-left: 8px;
  background: var(--sl-blue);
  color: #fff;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 700;
  vertical-align: middle;
}
.deps { list-style: none; margin: 0; padding: 0; }
.dep {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
}
.dep:first-child { border-top: 0; }
.line {
  background: var(--line-other);
  color: #fff;
  border-radius: 6px;
  padding: 2px 8px;
  font-weight: 700;
  font-size: 14px;
  min-width: 34px;
  text-align: center;
}
.line-green { background: var(--line-green); }
.line-red { background: var(--line-red); }
.line-blue { background: var(--line-blue); }
.line-other { background: var(--line-other); }
.time { font-weight: 700; font-variant-numeric: tabular-nums; }
.platform { color: var(--sl-gray); font-size: 12px; }
.dest { overflow-wrap: anywhere; }
.cancelled { opacity: .55; text-decoration: line-through; }
.cancelled-badge {
  grid-column: 1 / -1;
  color: var(--error-fg);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}

#trip-btn {
  display: inline-block;
  background: var(--sl-blue);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}
#trip-btn:disabled { opacity: .6; cursor: wait; }
#trip-board { margin-top: 12px; }

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f0f0f0;
    --bg: #1a1a1a;
    --card: #242424;
    --line: #3a3a3a;
    --sl-gray: #b0b0b0;
    --group-head: #2e2e2e;
    --hover: #333a44;
    --error-bg: #3b2321;
    --error-fg: #ffb0a8;
    --info-bg: #153529;
    --info-fg: #8ee6bd;
  }
  /* header, knappar, linjebrickor behåller sina färger — de fungerar på mörk botten */
  .station-name { color: var(--sl-cyan); }
}