:root {
  --ink: #f2e6c8;
  --gold: #e8c15a;
  --panel: rgba(9, 12, 24, 0.42);
  --panel-line: rgba(232, 193, 90, 0.28);
  --shadow: 0 2px 14px rgba(0, 0, 0, 0.75);
  --vignette: rgba(2, 4, 12, 0.62);
}

@media (prefers-color-scheme: light) {
  :root {
    --ink: #1c1a14;
    --gold: #7a4f12;
    --panel: rgba(247, 243, 232, 0.62);
    --panel-line: rgba(122, 79, 18, 0.32);
    --shadow: 0 2px 14px rgba(255, 255, 255, 0.55);
    --vignette: rgba(120, 130, 150, 0.28);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #05070f;
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
}

@media (prefers-color-scheme: light) {
  html, body { background: #b9c6d6; }
}

main#stage {
  position: fixed;
  inset: 0;
  display: block;
  outline: none;
}

main#stage:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -4px;
}

canvas#scene {
  display: block;
  width: 100%;
  height: 100%;
}

.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  background:
    radial-gradient(ellipse at 50% 46%, rgba(0, 0, 0, 0) 42%, var(--vignette) 100%);
}

/* ---------- HUD ---------- */

.hud {
  position: fixed;
  top: max(14px, env(safe-area-inset-top));
  right: max(14px, env(safe-area-inset-right));
  z-index: 6;
  min-width: 194px;
  padding: 10px 13px 11px;
  border: 1px solid var(--panel-line);
  border-radius: 3px;
  background: var(--panel);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  box-shadow: var(--shadow);
  pointer-events: none;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.55);
}

@media (prefers-color-scheme: light) {
  .hud { text-shadow: none; }
}

.hud-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  line-height: 1.55;
}

.hud-label {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.72;
}

.hud-value {
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--gold);
  white-space: nowrap;
}

.hud-value.hud-route {
  font-size: 15px;
  letter-spacing: 0.04em;
}

/* ---------- Hint ---------- */

.hint {
  position: fixed;
  bottom: max(16px, env(safe-area-inset-bottom));
  left: max(16px, env(safe-area-inset-left));
  z-index: 6;
  padding: 7px 12px;
  border: 1px solid var(--panel-line);
  border-radius: 3px;
  background: var(--panel);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  box-shadow: var(--shadow);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  pointer-events: none;
  opacity: 1;
  transition: opacity 1.4s ease 0s;
}

.hint.faded { opacity: 0; }

/* ---------- Paused badge ---------- */

.paused {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 7;
  transform: translate(-50%, -50%);
  padding: 12px 30px;
  border: 1px solid var(--panel-line);
  border-radius: 3px;
  background: var(--panel);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  color: var(--gold);
  font-size: 22px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  pointer-events: none;
}

.paused[hidden] { display: none; }

/* ---------- Loading / fallback ---------- */

.loading {
  position: fixed;
  inset: 0;
  z-index: 9;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #05070f;
  transition: opacity 0.9s ease;
}

@media (prefers-color-scheme: light) {
  .loading { background: #b9c6d6; }
}

.loading.done { opacity: 0; pointer-events: none; }

.loading-text {
  font-size: 16px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}

.fallback {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 24px;
  text-align: center;
  background: #05070f;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
}

@media (prefers-color-scheme: light) {
  .fallback { background: #b9c6d6; }
}

.fallback[hidden] { display: none; }

/* ---------- Accessibility ---------- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  .loading-text { animation: none; opacity: 0.85; }
  .hint { transition: opacity 0.001s linear; }
}

@media (max-width: 560px) {
  .hud { min-width: 0; padding: 8px 10px; }
  .hud-value { font-size: 13px; }
  .hint { font-size: 11px; right: 12px; }
}