:root {
  --bg: #101418;
  --panel: #1a2028;
  --text: #e8edf2;
  --muted: #9aa7b3;
  --accent: #4dabf7;
  --green: #37b24d;
  --orange: #e8590c;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  max-width: 42rem;
  margin-inline: auto;
  padding: 0 1rem 2rem;
}

header { padding: 1rem 0 0.25rem; }
h1 { margin: 0; font-size: 1.6rem; letter-spacing: 0.02em; }
.tagline { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.9rem; }

.banner {
  background: var(--panel);
  border-radius: 0.6rem;
  padding: 0.8rem 1rem;
  margin: 1rem 0;
  font-size: 0.95rem;
}
.banner-trackside { border-left: 4px solid var(--green); }
.banner-near { border-left: 4px solid var(--accent); }
.banner-none { border-left: 4px solid var(--muted); color: var(--muted); }
.banner-error { border-left: 4px solid #e03131; }

.empty { color: var(--muted); }

.card {
  background: var(--panel);
  border-radius: 0.6rem;
  padding: 0.85rem 1rem;
  margin: 0.7rem 0;
  border-left: 4px solid var(--accent);
  transition: box-shadow 0.3s;
}
.card-receding { border-left-color: var(--muted); opacity: 0.75; }
.card-focus { box-shadow: 0 0 0 2px var(--accent); }

.card-lead { font-size: 1.05rem; font-weight: 600; }
.card-lead .approach { color: var(--muted); font-weight: 400; }
.chip {
  float: right;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 0.5rem;
  letter-spacing: 0.05em;
}
.chip-live { background: var(--green); color: #08130b; }

.card-line { margin-top: 0.3rem; }
.card-pass { margin-top: 0.3rem; }
.card-meta { margin-top: 0.3rem; color: var(--muted); font-size: 0.85rem; }

#map {
  height: 40vh;
  min-height: 260px;
  border-radius: 0.6rem;
  margin-top: 1rem;
}

.user-dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 0 8px rgba(77, 171, 247, 0.9);
}

.train-marker { cursor: pointer; text-align: center; }
.train-marker svg { fill: var(--orange); stroke: #fff; stroke-width: 1; }
.train-marker.train-receding svg { fill: var(--muted); }
.train-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  color: #111;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 0.4rem;
  padding: 0 0.25rem;
}

footer { margin-top: 1.5rem; color: var(--muted); font-size: 0.75rem; }
footer a { color: var(--muted); }