:root {
  --bg: #0e0f12;
  --bg-soft: #14161a;
  --surface: #181a1f;
  --surface-2: #1e2128;
  --border: #24262c;
  --border-strong: #30333b;
  --text: #e7e5df;
  --text-dim: #8a8a93;
  --text-mute: #5a5a62;
  --accent: #e0115f; /* ruby — Rubin */
  --hi: #ff3a78;
  --ok: #52a873;
  --warn: #e8b13d;
  --bad: #d9533f;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;
  --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.35;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

#root { min-height: 100vh; }

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ─── Top bar ───────────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #14161a 0%, #101114 100%);
  gap: 24px;
}
.topbar-brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 28px; height: 28px;
  background: var(--accent);
  clip-path: polygon(0 30%, 40% 30%, 40% 0, 100% 50%, 40% 100%, 40% 70%, 0 70%);
}
.brand-title {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 600;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}
.live-dot {
  display: inline-block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok);
  margin: 0 4px 0 6px;
  box-shadow: 0 0 6px var(--ok);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.topbar-kpis { display: flex; gap: 28px; }
.kpi {
  display: flex; flex-direction: column; gap: 2px;
  padding-left: 16px;
  border-left: 1px solid var(--border);
}
.kpi:first-child { border-left: none; padding-left: 0; }
.kpi-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.kpi-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
}
.kpi-hi .kpi-value { color: var(--hi); }

/* ─── Main layout ───────────────────────────────────────────────────────── */
.main {
  flex: 1;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 16px;
  padding: 16px;
}
.left-rail {
  display: flex; flex-direction: column; gap: 16px;
  min-width: 0;
}
.center {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 16px;
  min-width: 0;
}

/* ─── Panels ────────────────────────────────────────────────────────────── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
.panel-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 600;
}
.panel-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
}

/* ─── Carrier leaderboard ───────────────────────────────────────────────── */
.carrier-list { padding: 4px 0; }
.carrier-row {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  grid-template-areas:
    "sw name rev"
    ". bar bar"
    ". meta meta";
  gap: 2px 10px;
  padding: 8px 14px;
  align-items: center;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background 0.12s;
}
.carrier-row:hover { background: var(--surface-2); }
.carrier-row.active {
  background: var(--surface-2);
  border-left-color: var(--accent);
}
.carrier-swatch {
  grid-area: sw;
  width: 8px; height: 14px;
}
.carrier-name {
  grid-area: name;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
}
.carrier-rev {
  grid-area: rev;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--hi);
  font-weight: 500;
}
.carrier-bar-wrap {
  grid-area: bar;
  height: 3px;
  background: var(--surface-2);
  overflow: hidden;
}
.carrier-bar { height: 100%; }
.carrier-meta {
  grid-area: meta;
  display: flex; gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

/* ─── Route leaderboard ─────────────────────────────────────────────────── */
.route-list { padding: 4px 0; }
.route-row {
  padding: 8px 14px;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background 0.12s;
}
.route-row:hover { background: var(--surface-2); }
.route-row.active {
  background: var(--surface-2);
  border-left-color: var(--accent);
}
.route-line {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
  display: flex; align-items: center; gap: 6px;
}
.route-arrow { color: var(--text-mute); }
.city-from, .city-to { color: var(--text); }
.route-bar-wrap {
  margin-top: 4px;
  height: 2px;
  background: var(--surface-2);
  overflow: hidden;
}
.route-bar {
  height: 100%;
  background: var(--accent);
}
.route-meta {
  display: flex; justify-content: space-between;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
}
.route-rev { color: var(--hi); }
.route-trains { color: var(--text-dim); }

/* ─── Map panel ─────────────────────────────────────────────────────────── */
.map-panel { position: relative; overflow: hidden; }
.map-svg {
  width: 100%;
  height: auto;
  display: block;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(224,17,95,0.05) 0%, transparent 60%),
    var(--bg);
}
.city-label {
  font-family: var(--font-mono);
  font-size: 10px;
  fill: var(--text);
  letter-spacing: 0.03em;
  pointer-events: none;
}
.city-label.off { fill: var(--text-dim); font-style: italic; }
.train-marker { cursor: pointer; }
.map-legend {
  margin-left: auto;
  display: flex; gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}
.map-legend span { display: flex; align-items: center; gap: 4px; }
.leg-dot {
  display: inline-block;
  width: 7px; height: 7px; border-radius: 50%;
}

.map-tooltip {
  position: absolute;
  top: 54px; right: 14px;
  width: 260px;
  background: rgba(15,17,20,0.96);
  border: 1px solid var(--border-strong);
  padding: 10px 12px;
  backdrop-filter: blur(6px);
  pointer-events: none;
  z-index: 5;
}
.tt-head {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  margin-bottom: 3px;
}
.tt-swatch { width: 6px; height: 10px; }
.tt-id { font-weight: 600; color: var(--text); }
.tt-time { margin-left: auto; color: var(--text-dim); }
.tt-route {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.tt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 10px;
}
.tt-l {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.tt-v {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
}
.tt-v.hi { color: var(--hi); font-weight: 600; }

/* ─── Train list ────────────────────────────────────────────────────────── */
.train-list { min-height: 640px; max-height: 640px; }
.sort-tabs { margin-left: auto; display: flex; gap: 1px; }
.sort-tabs button {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 8px;
  cursor: pointer;
  transition: all 0.12s;
}
.sort-tabs button:hover { color: var(--text); }
.sort-tabs button.on {
  background: var(--accent);
  color: #0c0d10;
  border-color: var(--accent);
}

.train-scroll {
  overflow-y: auto;
  flex: 1;
}
.train-scroll::-webkit-scrollbar { width: 8px; }
.train-scroll::-webkit-scrollbar-track { background: var(--bg); }
.train-scroll::-webkit-scrollbar-thumb { background: var(--border-strong); }

.train-row {
  display: grid;
  grid-template-columns: 100px 1fr 40px 140px;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
  align-items: center;
}
.train-row:hover, .train-row.hover { background: var(--surface-2); }
.train-row.selected { background: rgba(224,17,95,0.08); }

.tr-col-id {}
.tr-carrier {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text);
  display: flex; align-items: center; gap: 5px;
  font-weight: 500;
}
.tr-swatch { display: inline-block; width: 5px; height: 10px; }
.tr-time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}
.tr-delay {
  color: var(--bad);
  margin-left: 4px;
  font-weight: 600;
}
.tr-col-route { min-width: 0; }
.tr-route {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tr-arrow { color: var(--text-mute); margin: 0 3px; }
.tr-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-mute);
  margin-top: 2px;
}

.tr-col-seats { display: none; }

.tr-col-occ {
  display: flex; justify-content: center;
}
.occ-ring {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.occ-ring-hole {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text);
  font-weight: 600;
}
.train-row:hover .occ-ring-hole,
.train-row.hover .occ-ring-hole { background: var(--surface-2); }
.train-row.selected .occ-ring-hole { background: #1a1814; }

.tr-col-rev { text-align: right; }
.tr-rev-val {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--hi);
}
.tr-rev-bar-wrap {
  margin-top: 4px;
  height: 3px;
  background: var(--surface-2);
  overflow: hidden;
}
.tr-rev-bar { height: 100%; }

/* Compact mode */
.train-list.compact .train-row { padding: 5px 12px; min-height: 36px; }
.train-list.compact .tr-rev-bar-wrap { display: none; }
.train-list.compact .tr-meta { display: none; }
.train-list.compact .tr-delay-line { display: none; }

/* Seat grid (optional dense variant) */
.seat-grid {
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  gap: 1px;
  width: 120px;
}
.seat {
  aspect-ratio: 1;
  background: var(--border);
}
.seat.filled { background: var(--accent); }
.seat-meta {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-dim);
  margin-top: 3px;
  text-align: center;
}

/* When seat grid is enabled, show the column */
.train-row:has(.seat-grid) {
  grid-template-columns: 100px 1fr 140px 40px 140px;
}
.train-row:has(.seat-grid) .tr-col-seats { display: block; }

/* ─── Bottom bar ────────────────────────────────────────────────────────── */
.bottombar {
  padding: 8px 22px;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  display: flex; gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}
.bottombar .sep { color: var(--text-mute); }

/* ─── Responsive fallback ───────────────────────────────────────────────── */
@media (max-width: 1200px) {
  .main { grid-template-columns: 280px 1fr; }
  .center { grid-template-columns: 1fr; }
  .train-list { min-height: auto; max-height: none; }
}

@media (max-width: 768px) {
  .main { grid-template-columns: 1fr; padding: 12px; gap: 12px; }
  .left-rail { display: none; }
  .center { grid-template-columns: 1fr; gap: 12px; }
  .topbar { flex-wrap: wrap; gap: 12px; padding: 12px; }
  .topbar-kpis { gap: 16px; flex-wrap: wrap; }

  /* Map is the hero on mobile */
  .map-panel { order: 1; }
  .map-svg { min-height: 60vh; }

  /* Train list below, scrollable, capped */
  .train-list { order: 2; min-height: auto; max-height: 70vh; }
}