:root {
  color-scheme: dark;
  --bg: #071019;
  --panel: #0d1824;
  --line: #223244;
  --text: #f3f7fb;
  --muted: #9fb0c3;
  --accent: #2dd4bf;
  --warn: #f6c453;
  --bad: #ff6b6b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(7, 16, 25, 0.96);
  border-bottom: 1px solid var(--line);
}
.wordmark { font-family: Georgia, serif; font-size: 22px; }
.appname { color: var(--accent); font-weight: 800; letter-spacing: 0; }
button, input {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #101d2a;
  color: var(--text);
  padding: 10px 12px;
}
button { cursor: pointer; }
main { max-width: 1180px; margin: 0 auto; padding: 16px; }
.auth, .status, .panel {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 14px;
}
.auth-row, .search-row { display: flex; gap: 8px; }
.auth-row input, .search-row input { flex: 1; min-width: 0; }
.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 0 12px;
}
.tab.active { border-color: var(--accent); color: var(--accent); }
.status.bad { border-color: var(--bad); color: var(--bad); }
.source-strip, .kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}
.source-strip span, .kpi, .rail-status, .row {
  border: 1px solid var(--line);
  background: #0a1420;
  border-radius: 7px;
  padding: 10px;
}
.source-strip .fresh { color: var(--accent); }
.source-strip .stale { color: var(--warn); }
.kpi span, .row span, .row small { color: var(--muted); }
.kpi strong { display: block; font-size: 26px; }
.rail-status { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
h2 { font-size: 16px; margin: 18px 0 8px; }
.car-list { display: grid; gap: 8px; }
.row {
  display: grid;
  grid-template-columns: minmax(105px, 150px) minmax(90px, 130px) minmax(120px, 1fr) minmax(120px, 1fr) auto;
  gap: 10px;
  align-items: center;
}
.badges { display: flex; flex-wrap: wrap; gap: 4px; }
.badges em {
  color: var(--bg);
  background: var(--warn);
  border-radius: 999px;
  padding: 2px 7px;
  font-style: normal;
  font-size: 12px;
}
.exception { border-color: var(--warn); }
.empty { color: var(--muted); padding: 12px; }
pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--text);
}
@media (max-width: 720px) {
  .row { grid-template-columns: 1fr; }
  .auth-row, .search-row { flex-direction: column; }
}