:root {
  --bg: rgba(14, 17, 22, 0.86);
  --bg-solid: #0e1116;
  --fg: #e8ecf1;
  --muted: #9aa5b4;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #4fc3f7;
  --ok: #46d19a;
  --warn: #ffb547;
  --bad: #ff6b6b;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg-solid);
  color: var(--fg);
  font-family: var(--font);
  font-size: 14px;
  overflow: hidden;
}

#map {
  position: absolute;
  inset: 0;
}

.maplibregl-ctrl-attrib { display: none; }
.maplibregl-ctrl-bottom-right { bottom: env(safe-area-inset-bottom, 0); }
.maplibregl-ctrl-group {
  background: var(--bg) !important;
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35) !important;
}
.maplibregl-ctrl-group button + button { border-top: 1px solid var(--line) !important; }
.maplibregl-ctrl button .maplibregl-ctrl-icon { filter: invert(1) brightness(1.4); }

.panel {
  position: absolute;
  top: 16px;
  left: 16px;
  width: min(340px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
  background: var(--bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  z-index: 5;
  overflow: hidden;
}
.panel[hidden] { display: none; }

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 14px 10px 16px;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 0 rgba(70, 209, 154, 0.6);
  animation: pulse 2s ease-out infinite;
  flex: none;
}
.brand-dot.stale { background: var(--warn); animation: none; }
.brand-dot.down { background: var(--bad); animation: none; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(70, 209, 154, 0.55); }
  100% { box-shadow: 0 0 0 10px rgba(70, 209, 154, 0); }
}

.icon-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  width: 28px; height: 28px;
  border-radius: 8px;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}
.icon-btn:hover { color: var(--fg); background: rgba(255, 255, 255, 0.06); }

.panel-body { padding: 12px 16px 14px; overflow: auto; display: flex; flex-direction: column; gap: 12px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.stat {
  display: flex; flex-direction: column; gap: 2px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.stat-num { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 11px; color: var(--muted); }

.status { font-size: 12px; color: var(--muted); min-height: 1.2em; }
.status.bad { color: var(--bad); }

.field { display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--muted); }
.field input {
  appearance: none;
  width: 100%;
  padding: 8px 10px;
  font: inherit;
  font-size: 14px;
  color: var(--fg);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
}
.field input:focus { border-color: var(--accent); }

.toggles { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  appearance: none;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.chip.on { color: var(--fg); border-color: rgba(79, 195, 247, 0.6); background: rgba(79, 195, 247, 0.12); }
.chip:hover { color: var(--fg); }

.alerts summary { cursor: pointer; font-size: 12px; color: var(--warn); }
.alerts ul { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; max-height: 220px; overflow: auto; }
.alerts li { font-size: 12px; padding: 8px 10px; background: rgba(255, 181, 71, 0.08); border: 1px solid rgba(255, 181, 71, 0.25); border-radius: 8px; }
.alerts li b { display: block; margin-bottom: 2px; }
.alerts li .routes { color: var(--muted); }

.credits { font-size: 11px; color: var(--muted); line-height: 1.45; }
.credits a { color: var(--muted); text-decoration: underline; text-decoration-color: rgba(255, 255, 255, 0.25); }
.credits a:hover { color: var(--fg); }

.expand {
  position: absolute;
  top: 16px; left: 16px;
  z-index: 5;
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg);
  backdrop-filter: blur(12px);
  color: var(--fg);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}
.expand[hidden] { display: none; }

.maplibregl-popup-content {
  background: var(--bg-solid);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: var(--font);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  min-width: 180px;
}
.maplibregl-popup-anchor-bottom .maplibregl-popup-tip { border-top-color: var(--bg-solid); }
.maplibregl-popup-anchor-top .maplibregl-popup-tip { border-bottom-color: var(--bg-solid); }
.maplibregl-popup-anchor-left .maplibregl-popup-tip { border-right-color: var(--bg-solid); }
.maplibregl-popup-anchor-right .maplibregl-popup-tip { border-left-color: var(--bg-solid); }
.maplibregl-popup-close-button { color: var(--muted); font-size: 18px; padding: 2px 6px; }
.popup .pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 12px;
  margin-right: 6px;
}
.popup .title { font-weight: 600; margin-bottom: 6px; display: flex; align-items: center; gap: 4px; }
.popup dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; font-size: 12px; }
.popup dt { color: var(--muted); }
.popup dd { margin: 0; font-variant-numeric: tabular-nums; }

@media (max-width: 600px) {
  .panel { top: auto; bottom: 12px; left: 12px; right: 12px; width: auto; max-height: 55vh; }
  .expand { top: auto; bottom: 12px; }
  .credits { display: none; }
}