:root {
  --bg: #05060d;
  --bg-deep: #02030a;
  --cyan: #33d7ff;
  --magenta: #9b7cff;
  --amber: #ffd84a;
  --yes: #3dff8a;
  --no:  #ff4660;
  --text: #d8e8ff;
  --muted: rgba(216, 232, 255, 0.58);
  --panel: rgba(8, 12, 30, 0.72);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background:
    radial-gradient(ellipse at 50% 0%, #0a0e22 0%, #03040a 60%, #000 100%);
  color: var(--text);
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow: hidden;
}

#stage {
  position: relative;
  width: 100vw;
  height: 100svh;
  min-height: 100vh;
  display: grid;
  place-items: center;
  isolation: isolate;
  overflow: hidden;
  user-select: none;
  touch-action: manipulation;
}

#stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.56), transparent 18%, transparent 82%, rgba(0, 0, 0, 0.56)),
    linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 22%, transparent 74%, rgba(0, 0, 0, 0.42));
}

#world {
  display: block;
  z-index: 0;
  width: min(100vw, calc(100svh * 700 / 980));
  height: auto;
  max-height: 100svh;
  aspect-ratio: 700 / 980;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) 24px max(24px, env(safe-area-inset-bottom));
  text-align: center;
  pointer-events: none;
}
.overlay > * { pointer-events: auto; }

/* Calm the canvas behind a centered overlay so the menu / result feel slick
   instead of fighting the chaotic track for attention. */
.overlay-dim {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(2, 3, 10, 0.92) 0%, rgba(2, 3, 10, 0.78) 35%, rgba(2, 3, 10, 0.55) 68%, rgba(2, 3, 10, 0.3) 100%);
  pointer-events: auto;
}

.panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(14px, 2.4vh, 24px);
  width: min(520px, calc(100vw - 32px));
  padding: clamp(20px, 3vh, 32px) 24px;
}

.panel-result {
  gap: clamp(20px, 3vh, 32px);
}

.hidden { display: none !important; }

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

/* — Menu — */
.neon {
  font-family: "Courier New", ui-monospace, monospace;
  font-size: clamp(38px, 6.8vw, 86px);
  margin: 0;
  letter-spacing: 0.1em;
  color: var(--cyan);
  line-height: 0.9;
  text-shadow:
    0 0 6px var(--cyan),
    0 0 18px var(--cyan),
    0 0 44px rgba(51, 215, 255, 0.5);
}

.sub {
  margin: 0 0 4px;
  letter-spacing: 0.36em;
  font-size: 11px;
  color: rgba(155, 124, 255, 0.85);
  text-shadow: 0 0 6px rgba(155, 124, 255, 0.55);
  text-transform: uppercase;
  font-weight: 700;
}

#question {
  width: min(420px, calc(100vw - 48px));
  padding: 14px 16px;
  background: rgba(2, 3, 10, 0.7);
  border: 1px solid rgba(51, 215, 255, 0.22);
  border-radius: 6px;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 15px;
  text-align: center;
  outline: none;
  letter-spacing: 0;
  transition: border-color 160ms, background-color 160ms;
  user-select: text;
}
#question::placeholder { color: rgba(216, 232, 255, 0.3); }
#question:hover { border-color: rgba(51, 215, 255, 0.36); }
#question:focus {
  border-color: rgba(51, 215, 255, 0.7);
  background: rgba(2, 3, 10, 0.85);
}

.big-btn {
  margin-top: 4px;
  padding: 16px 52px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.34em;
  color: var(--bg);
  background: var(--cyan);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: "Courier New", ui-monospace, monospace;
  box-shadow: 0 0 18px rgba(51, 215, 255, 0.55), 0 0 42px rgba(51, 215, 255, 0.28);
  transition: transform 90ms, box-shadow 200ms, filter 200ms;
}
.big-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 22px rgba(51, 215, 255, 0.75), 0 0 56px rgba(51, 215, 255, 0.4);
  filter: brightness(1.05);
}
.big-btn:active { transform: translateY(1px); }

.btn {
  padding: 12px 28px;
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(51, 215, 255, 0.45);
  border-radius: 6px;
  cursor: pointer;
  text-transform: uppercase;
  transition: background-color 160ms, border-color 160ms;
}
.btn:hover { background: rgba(51, 215, 255, 0.08); border-color: var(--cyan); }

.big-btn:focus-visible, .btn:focus-visible, .settings-toggle:focus-visible, .weight-slider:focus-visible, #question:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.settings-toggle {
  margin-top: -4px;
  padding: 8px 18px;
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: rgba(216, 232, 255, 0.72);
  background: rgba(2, 3, 10, 0.42);
  border: 1px solid rgba(155, 124, 255, 0.34);
  border-radius: 6px;
  cursor: pointer;
  text-transform: uppercase;
  transition: color 160ms, border-color 160ms, background-color 160ms;
}
.settings-toggle:hover,
.settings-toggle[aria-expanded="true"] {
  color: var(--cyan);
  border-color: rgba(51, 215, 255, 0.5);
  background: rgba(51, 215, 255, 0.07);
}

.settings-panel {
  width: min(360px, calc(100vw - 56px));
  padding: 12px 14px;
  background: rgba(2, 3, 10, 0.58);
  border: 1px solid rgba(51, 215, 255, 0.2);
  border-radius: 6px;
}

.weight-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
  font-family: "Courier New", ui-monospace, monospace;
  text-transform: uppercase;
}
.weight-head label {
  color: rgba(216, 232, 255, 0.62);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
}
.weight-head span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.weight-slider {
  display: block;
  width: 100%;
  accent-color: var(--cyan);
  cursor: pointer;
}

.hint {
  margin: 0;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  max-width: 80vw;
  text-align: center;
}
.hint-quiet { color: rgba(216, 232, 255, 0.32); }
.hint kbd {
  display: inline-block;
  padding: 2px 6px;
  margin: 0 2px;
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 10px;
  color: var(--cyan);
  background: rgba(2, 3, 10, 0.6);
  border: 1px solid rgba(51, 215, 255, 0.3);
  border-radius: 3px;
  letter-spacing: 0.04em;
}

/* — HUD (during race) — */
.hud {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  padding: max(16px, env(safe-area-inset-top)) 16px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.hud-question {
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan), 0 0 22px rgba(51, 215, 255, 0.4);
  font-size: 15px;
  letter-spacing: 0.12em;
  max-width: 80vw;
  text-align: center;
}

.scoreboard {
  display: flex;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  border-radius: 999px;
  background: rgba(2, 3, 10, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform 220ms, box-shadow 220ms, opacity 220ms;
  opacity: 0.55;
}
.chip .dot {
  width: 7px; height: 7px; border-radius: 50%;
  box-shadow: 0 0 6px currentColor;
}
.chip-yes { color: var(--yes); border: 1px solid rgba(61, 255, 138, 0.42); }
.chip-yes .dot { background: var(--yes); }
.chip-no  { color: var(--no);  border: 1px solid rgba(255, 70, 96, 0.42); }
.chip-no  .dot { background: var(--no);  }

.chip.lead {
  opacity: 1;
  transform: scale(1.08);
  box-shadow: 0 0 14px currentColor;
}

/* — Result — */
.verdict {
  font-family: "Courier New", ui-monospace, monospace;
  font-size: clamp(112px, 22vw, 260px);
  font-weight: bold;
  letter-spacing: 0.08em;
  line-height: 1;
}
.verdict.yes {
  color: var(--yes);
  text-shadow: 0 0 10px rgba(61, 255, 138, 0.82), 0 0 30px rgba(61, 255, 138, 0.38);
}
.verdict.no {
  color: var(--no);
  text-shadow: 0 0 10px rgba(255, 70, 96, 0.82), 0 0 30px rgba(255, 70, 96, 0.38);
}

.result-meta {
  color: var(--muted);
  letter-spacing: 0.18em;
  font-size: 11px;
  max-width: 80vw;
}

/* — Utility — */
.util {
  position: absolute;
  z-index: 4;
  top: max(14px, env(safe-area-inset-top));
  right: max(14px, env(safe-area-inset-right));
  display: flex;
  gap: 8px;
  pointer-events: none;
}
.util > * { pointer-events: auto; }

.icon-btn {
  width: 36px; height: 36px;
  display: inline-grid; place-items: center;
  padding: 0;
  color: var(--cyan);
  background: rgba(2, 3, 10, 0.55);
  border: 1px solid rgba(51, 215, 255, 0.35);
  border-radius: 999px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 0 12px rgba(51, 215, 255, 0.16);
  transition: color 160ms, border-color 160ms, box-shadow 160ms, transform 90ms;
}
.icon-btn:hover { color: #bff9ff; border-color: var(--cyan); box-shadow: 0 0 18px rgba(51, 215, 255, 0.35); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn[aria-pressed="true"] { color: var(--muted); border-color: rgba(216, 232, 255, 0.32); box-shadow: none; }

/* — Fatal & Toast — */
.fatal {
  position: absolute; z-index: 4;
  top: 50%; left: 50%;
  width: min(520px, calc(100vw - 48px));
  margin: 0; padding: 18px 20px;
  transform: translate(-50%, -50%);
  color: var(--text);
  background: rgba(5, 6, 13, 0.88);
  border: 1px solid rgba(255, 216, 74, 0.55);
  border-radius: 6px;
  text-align: center;
}

@media (max-width: 560px) {
  .neon { font-size: clamp(42px, 14vw, 68px); letter-spacing: 0.12em; }
  .sub, .hint { letter-spacing: 0.1em; }
  .big-btn { width: min(260px, calc(100vw - 64px)); padding: 16px 24px; letter-spacing: 0.24em; }
  .btn { width: min(260px, calc(100vw - 64px)); }
  .settings-panel { width: min(300px, calc(100vw - 64px)); }
  .weight-head { gap: 10px; }
  .hud-question { font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}