:root {
  --bg: #0b0f14;
  --panel: #121821;
  --panel-2: #161e29;
  --line: #223044;
  --text: #e6edf6;
  --muted: #8ba0b8;
  --accent: #4cc2ff;
  --amber: #ffb454;
  --green: #4ade80;
  --red: #f87171;
  --violet: #a78bfa;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 600px at 20% -10%, #16202c 0%, var(--bg) 60%);
  color: var(--text);
  font: 14px/1.45 "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

h1, h2 { margin: 0; font-weight: 600; }
h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; gap: 12px; align-items: center; color: var(--accent); }
.brand h1 { font-size: 18px; color: var(--text); letter-spacing: .01em; }
.sub { margin: 2px 0 0; color: var(--muted); font-size: 12px; }

.top-right { display: flex; align-items: center; gap: 12px; }

.badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.badge.sim { color: var(--amber); border-color: #5b4520; background: #2a2010; }
.badge.live { color: var(--green); border-color: #1f4d33; background: #10251a; }

.clock { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 13px; }

.icon-btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  font-size: 15px;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 16px 22px 6px;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat span { font-size: 22px; font-weight: 650; font-variant-numeric: tabular-nums; }
.stat label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }

.corridor {
  margin: 14px 22px 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 18px 18px;
}
#corridor { position: relative; padding-top: 26px; }
.rail {
  position: absolute;
  left: 0; right: 0; top: 40px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--line) 8%, var(--line) 92%, transparent);
}
.stops {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  position: relative;
}
.stop { flex: 1; text-align: center; position: relative; }
.stop .dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--line);
  margin: 0 auto 8px;
}
.stop.has-train .dot { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 12px rgba(76,194,255,.7); }
.stop .name { font-size: 11px; color: var(--muted); }
.stop .tag {
  margin-top: 6px;
  font-size: 10.5px;
  color: var(--accent);
  min-height: 14px;
  font-variant-numeric: tabular-nums;
}

.grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(340px, 1.15fr);
  gap: 14px;
  padding: 14px 22px 28px;
}
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } .stats { grid-template-columns: repeat(2, 1fr); } }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
}
.panel h2 { margin-bottom: 10px; }

.cards { display: flex; flex-direction: column; gap: 8px; }
.card {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 9px;
  padding: 10px 12px;
}
.card .head { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.card .symbol { font-weight: 650; letter-spacing: .02em; }
.card .where { color: var(--muted); font-size: 12px; margin-top: 2px; }
.card .meta { color: var(--muted); font-size: 11px; margin-top: 4px; }

.empty { color: var(--muted); font-size: 12.5px; margin: 6px 0 0; }

.filters { display: flex; gap: 8px; margin-bottom: 10px; }
.filters input, .filters select, .settings input, .pair input {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 9px;
  font: inherit;
  font-size: 12.5px;
}
.filters input { flex: 1; }
.filters input:focus, .filters select:focus, .settings input:focus { outline: 1px solid var(--accent); }

.events {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  max-height: 420px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.events li {
  display: grid;
  grid-template-columns: 54px 1fr auto;
  gap: 10px;
  align-items: baseline;
  padding: 6px 6px;
  border-radius: 6px;
  font-size: 12.5px;
  border-bottom: 1px solid rgba(34,48,68,.55);
}
.events li:hover { background: rgba(34,48,68,.28); }
.events .t { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 11.5px; }
.events .who { font-weight: 600; }
.events .where { color: var(--muted); }
.events .chip {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}
.chip.approaching { color: var(--accent); border-color: #234a63; }
.chip.arriving { color: var(--green); border-color: #1f4d33; }
.chip.departing { color: var(--amber); border-color: #5b4520; }
.chip.working { color: var(--violet); border-color: #3d3260; }
.chip.cleared { color: var(--muted); }
.chip.info { color: var(--muted); }

.settings {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(400px, 92vw);
  background: var(--panel);
  border-left: 1px solid var(--line);
  padding: 18px;
  overflow-y: auto;
  box-shadow: -20px 0 60px rgba(0,0,0,.45);
  z-index: 20;
}
.settings.hidden { display: none; }
.settings-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
fieldset {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  margin: 0 0 14px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
legend { font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); padding: 0 6px; }
.row { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text); }
.row > span:first-child { flex: 0 0 130px; color: var(--muted); }
.row input[type="text"], .row input:not([type]), .row input[type="number"], .row input[type="search"] { flex: 1; min-width: 0; }
.row input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--accent); }
.pair { display: flex; gap: 6px; flex: 1; }
.pair input { flex: 1; min-width: 0; }
.hint { color: var(--muted); font-size: 11.5px; margin: 0; }
.code {
  background: #0a0e13;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px;
  color: #9fd0ff;
  font-size: 11px;
  overflow-x: auto;
  margin: 0;
}
.settings-actions { display: flex; gap: 8px; }
button.primary {
  background: var(--accent);
  color: #04121c;
  border: none;
  border-radius: 8px;
  padding: 9px 14px;
  font-weight: 650;
  cursor: pointer;
}
button.primary:hover { filter: brightness(1.08); }
.settings-actions button:not(.primary) {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
}
.settings-actions button:not(.primary):hover { border-color: var(--accent); color: var(--accent); }

.eta-panel { margin: 14px 22px 0; }
.eta-form { display: flex; gap: 8px; }
.eta-form input { flex: 1; min-width: 0; }
.eta-result { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.eta-line { display: flex; align-items: baseline; gap: 12px; }
.eta-when { font-size: 26px; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }
.eta-min { font-size: 15px; color: var(--muted); font-variant-numeric: tabular-nums; }
.eta-detail { color: var(--muted); font-size: 12.5px; }
.eta-detail b { color: var(--text); font-weight: 600; }

.fav-add { display: flex; gap: 8px; }
.fav-add input { flex: 1; min-width: 0; }
.favs { list-style: none; margin: 10px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.favs li { display: flex; align-items: center; justify-content: space-between; gap: 8px; background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.fav-addr { font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fav-del { background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 6px; width: 24px; height: 24px; cursor: pointer; font-size: 12px; flex: 0 0 auto; }
.fav-del:hover { color: var(--red); border-color: var(--red); }