:root {
  --ink: #f5f7fa;
  --muted: #a9b4c2;
  --glass: rgba(12, 18, 28, 0.62);
  --line: rgba(255, 255, 255, 0.14);
  --accent: #ffc933;
  --good: #7cf29c;
  --bad: #ff6b6b;
  --orb: #ff5ce1;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #0b1118;
  color: var(--ink);
  font: 15px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
}

#viewer { position: fixed; inset: 0; }
#viewer .cesium-viewer-bottom { left: 8px; bottom: 4px; }

[hidden] { display: none !important; }

/* HUD */
#hud { position: fixed; inset: 0; pointer-events: none; }

.panel {
  position: absolute;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  font-variant-numeric: tabular-nums;
  backdrop-filter: blur(6px);
}
.panel > div { display: flex; align-items: baseline; gap: 10px; }
.panel .label {
  width: 52px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.panel span:not(.label) { font-size: 18px; font-weight: 600; }
.panel small { color: var(--muted); }

.gauges { bottom: 40px; right: 16px; min-width: 210px; }
.gauges small { font-size: 11px; }
.boost .bar, .low .bar {
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.15);
  overflow: hidden;
  align-self: center;
}
#boostFill { height: 100%; width: 100%; background: #4cc9f0; }
#boostFill.on { background: var(--accent); }

#reticle {
  position: absolute;
  width: 52px; height: 52px;
  margin: -26px 0 0 -26px;
  border: 3px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(255, 201, 51, 0.6);
}
#reticle span, #arrow span {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 6px);
  font-weight: 700;
  font-size: 13px;
  color: var(--accent);
  text-shadow: 0 1px 3px #000;
  white-space: nowrap;
}
#arrow { position: absolute; width: 40px; height: 40px; margin: -20px 0 0 -20px; }
#arrow svg { fill: var(--accent); filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.7)); }

#popups { position: absolute; left: 50%; top: 38%; }
.popup {
  position: absolute;
  transform: translateX(-50%);
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
  animation: rise 0.9s ease-out forwards;
}
.popup.orb { color: var(--orb); }
.popup.bad { color: var(--bad); }
@keyframes rise {
  from { opacity: 1; transform: translate(-50%, 0) scale(1.15); }
  to { opacity: 0; transform: translate(-50%, -60px) scale(1); }
}

#banner {
  position: absolute;
  left: 50%; top: 22%;
  transform: translateX(-50%);
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  text-shadow: 0 3px 10px rgba(0, 0, 0, 0.8);
  opacity: 0;
  transition: opacity 0.25s;
  white-space: nowrap;
}
#banner.show { opacity: 1; }

#flash { position: absolute; inset: 0; background: #fff; opacity: 0; }
#flash.on { animation: flash 0.6s ease-out; }
@keyframes flash { from { opacity: 0.85; } to { opacity: 0; } }

.hint {
  position: absolute;
  top: 16px; right: 16px;
  color: var(--muted);
  font-size: 12px;
  text-shadow: 0 1px 2px #000;
}

/* Race HUD */
.board { top: 16px; left: 16px; min-width: 200px; padding: 8px 12px; }
.board .row { display: grid; grid-template-columns: 16px 10px 1fr auto; gap: 8px; align-items: center; padding: 2px 0; }
.board .row span { font-size: 15px; font-weight: 600; }
.board .row .pos { color: var(--muted); font-size: 13px; }
.board .row i { width: 10px; height: 10px; border-radius: 50%; }
.board .row.you .name { color: var(--accent); }
.board .row.done .name::after { content: " ✓"; color: var(--good); }

#progress { position: absolute; top: 18px; left: 50%; transform: translateX(-50%); width: min(420px, 40vw); text-align: center; }
#progress .bar { position: relative; height: 6px; border-radius: 3px; background: rgba(255, 255, 255, 0.2); }
#progressFill { height: 100%; width: 0; border-radius: 3px; background: var(--accent); }
#progressDots i {
  position: absolute; top: 50%;
  width: 12px; height: 12px; margin: -6px 0 0 -6px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.6);
}
#progressDots i.you { width: 16px; height: 16px; margin: -8px 0 0 -8px; border-color: #fff; z-index: 1; }
#progressText { display: block; margin-top: 8px; font-size: 12px; color: var(--ink); text-shadow: 0 1px 2px #000; font-variant-numeric: tabular-nums; }

.scorebox { bottom: 40px; left: 50%; transform: translateX(-50%); min-width: 230px; text-align: center; }
.scorebox > div { justify-content: center; }
.scorebox .points span { font-size: 34px; font-weight: 800; line-height: 1.1; }
.scorebox .rate #rate { font-size: 15px; color: var(--good); }
.scorebox .rate #rate.zero { color: var(--muted); }
#offroute { font-size: 13px !important; color: var(--bad); font-weight: 800; letter-spacing: 0.08em; }
.scorebox .low { margin-top: 6px; }
.scorebox .low .label { width: auto; }
#lowFill { height: 100%; width: 0; background: var(--good); }

/* Overlays */
.overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(5, 9, 14, 0.35);
}
.card {
  width: min(520px, 100%);
  background: rgba(12, 18, 28, 0.86);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  backdrop-filter: blur(10px);
}
.card.small { width: min(320px, 100%); text-align: center; }
h1 { margin: 0 0 4px; font-size: 34px; letter-spacing: -0.02em; }
h2 { margin: 0 0 16px; }
.sub { margin: 0 0 20px; color: var(--muted); }

.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.modes button { text-align: left; font-size: 16px; }
.modes button small { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; font-weight: 400; line-height: 1.35; }
.modes button.selected { border-color: var(--accent); background: rgba(255, 201, 51, 0.12); }

.locations { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin-bottom: 16px; }
.locations button { text-align: left; }
.locations button small { display: block; color: var(--muted); font-size: 12px; font-weight: 400; }
.locations button.selected { border-color: var(--accent); background: rgba(255, 201, 51, 0.12); }

button {
  font: inherit;
  font-weight: 600;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  width: 100%;
}
button:hover { background: rgba(255, 255, 255, 0.12); }
button.primary { background: var(--accent); color: #1a1300; border-color: transparent; font-size: 17px; margin: 4px 0 8px; }
button.primary:disabled { opacity: 0.5; cursor: default; }
.card.small button { margin-top: 8px; }

.toggle { display: flex; gap: 8px; align-items: center; color: var(--muted); margin-bottom: 14px; cursor: pointer; }

.controls { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 16px 0 0; font-size: 13px; }
.controls dt { font-weight: 700; color: var(--ink); }
.controls dd { margin: 0; color: var(--muted); }

table.results { width: 100%; border-collapse: collapse; margin: 8px 0 12px; font-variant-numeric: tabular-nums; }
table.results th { text-align: left; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; padding: 4px 6px; }
table.results td { padding: 8px 6px; border-top: 1px solid var(--line); }
table.results td i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 8px; }
table.results tr.you td { color: var(--accent); font-weight: 700; }
#results .note { margin: 0 0 12px; }

.note { margin: 16px 0 0; font-size: 13px; color: var(--muted); }
.note.error { color: var(--bad); }
.note a { color: var(--accent); }