/* TURBO PISTA — full-screen game UI over the canvas. */

html, body { height: 100%; }
body {
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--c-night);
  -webkit-tap-highlight-color: transparent;
}

.game {
  position: fixed; inset: 0;
  overflow: hidden;
  user-select: none; -webkit-user-select: none;
  touch-action: none;
}

#screen { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.touch-surface { position: absolute; inset: 0; }
body:not(.is-playing) .touch-surface { pointer-events: none; }

/* ---- Top bar (always visible) ------------------------------------------ */
.topbar {
  position: absolute; z-index: 30;
  top: max(12px, env(safe-area-inset-top)); left: max(12px, env(safe-area-inset-left)); right: max(12px, env(safe-area-inset-right));
  display: flex; align-items: center; gap: 8px;
  pointer-events: none;
}
.topbar > * { pointer-events: auto; }
.back-link, .lang-link {
  display: inline-flex; align-items: center; min-height: 44px; padding: 6px 14px;
  font: 800 .95rem/1 var(--f-sans); text-transform: uppercase; letter-spacing: .04em; text-decoration: none;
  color: var(--c-ink); background: var(--c-cream);
  border: var(--border); border-radius: 10px; box-shadow: 3px 3px 0 var(--c-ink);
}
.lang-link { background: var(--c-yellow); }
.topbar #btn-sound { margin-left: auto; }
body.is-playing .back-link, body.is-playing .lang-link, body.is-countdown .back-link, body.is-countdown .lang-link { display: none; }
body.is-playing .topbar #btn-sound, body.is-countdown .topbar #btn-sound { margin-right: 56px; }

.icon-btn {
  display: inline-grid; place-items: center; width: 48px; height: 48px; padding: 0;
  color: var(--c-ink); background: var(--c-cream);
  border: var(--border); border-radius: 12px; box-shadow: 3px 3px 0 var(--c-ink);
  cursor: pointer;
}
.icon-btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--c-ink); }
.icon-btn svg { width: 26px; height: 26px; fill: currentColor; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.icon-btn .icon-off { display: none; }
.icon-btn[aria-pressed="true"] .icon-on { display: none; }
.icon-btn[aria-pressed="true"] .icon-off { display: block; }

/* ---- HUD ------------------------------------------------------------------ */
.hud {
  position: absolute; z-index: 20;
  top: max(12px, env(safe-area-inset-top)); left: max(12px, env(safe-area-inset-left)); right: max(12px, env(safe-area-inset-right));
  display: grid; grid-template-columns: auto 1fr auto; align-items: start; gap: 10px;
  pointer-events: none;
  color: var(--c-cream);
}
.hud[hidden] { display: none; }
.hud-score, .hud-stats > div, .hud-lives, .hud-level {
  background: rgba(20, 20, 20, .82); border: 2px solid var(--c-ink); border-radius: 10px;
  box-shadow: 3px 3px 0 rgba(20, 20, 20, .5);
}
.hud-score { padding: 6px 14px 8px; min-width: 120px; }
.hud-label, .hud-stats dt { display: block; font: 700 .68rem/1.2 var(--f-sans); text-transform: uppercase; letter-spacing: .08em; color: var(--c-yellow); }
.hud-score strong { display: block; font: 900 2.1rem/1 var(--f-display); font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.hud-stats { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }
.hud-stats > div { padding: 5px 10px 6px; }
.hud-stats dd { margin: 0; font: 800 1.2rem/1.1 var(--f-display); font-variant-numeric: tabular-nums; letter-spacing: .03em; white-space: nowrap; }
.hud-side { display: grid; justify-items: end; gap: 6px; margin-right: 116px; }
.hud-lives { display: flex; gap: 5px; padding: 7px 10px; }
.hud-lives span {
  width: 20px; height: 18px;
  background: var(--c-red);
  clip-path: path("M10 18 1.4 9.4A5 5 0 0 1 10 3a5 5 0 0 1 8.6 6.4z");
}
.hud-lives span.lost { background: #4A4A52; }
.hud-level { padding: 4px 10px; font: 800 .8rem/1.4 var(--f-sans); text-transform: uppercase; letter-spacing: .06em; }
.hud-level strong { font: 900 1.1rem/1 var(--f-display); color: var(--c-yellow); }
.nitro-meter { width: 110px; height: 10px; border: 2px solid var(--c-ink); border-radius: 6px; background: rgba(20,20,20,.7); overflow: hidden; opacity: 0; transition: opacity .2s; }
.nitro-meter.on { opacity: 1; }
.nitro-meter span { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, #1F4BFF, #6C8CFF, #FFCC00); transform-origin: left; }
.pause-btn { position: absolute; right: 0; top: 0; pointer-events: auto; }

/* ---- Level banner, countdown, toast ------------------------------------ */
.banner {
  position: absolute; z-index: 15; left: 50%; top: 32%;
  padding: 10px 28px 12px;
  font: italic 900 clamp(2.6rem, 9vw, 5.5rem)/1 var(--f-display); text-transform: uppercase; letter-spacing: .03em;
  color: var(--c-yellow); background: var(--c-ink); border-radius: 16px; box-shadow: 6px 6px 0 var(--c-red);
  transform: translate(-50%, -50%) scale(.6); opacity: 0; pointer-events: none;
  white-space: nowrap;
}
.banner small { display: block; margin-top: 4px; font: 800 1rem/1.2 var(--f-sans); font-style: normal; letter-spacing: .12em; color: var(--c-cream); text-align: center; }
.banner.show { animation: banner 2.2s cubic-bezier(.2, 1.4, .4, 1) forwards; }
@keyframes banner {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(.6) rotate(-4deg); }
  12% { opacity: 1; transform: translate(-50%, -50%) scale(1.08) rotate(-2deg); }
  22%, 80% { opacity: 1; transform: translate(-50%, -50%) scale(1) rotate(-2deg); }
  100% { opacity: 0; transform: translate(-50%, -60%) scale(.95) rotate(-2deg); }
}

.countdown {
  position: absolute; z-index: 25; left: 50%; top: 30%; transform: translate(-50%, -50%);
  display: grid; justify-items: center; gap: 12px; pointer-events: none;
}
.countdown[hidden] { display: none; }
.lights {
  display: flex; gap: 12px; padding: 14px 18px;
  background: var(--c-ink); border: 3px solid #000; border-radius: 22px; box-shadow: 6px 6px 0 rgba(0,0,0,.4);
}
.lights span {
  width: clamp(40px, 9vw, 64px); aspect-ratio: 1; border-radius: 50%;
  background: #3A1010; border: 3px solid #000;
  transition: background-color .08s, box-shadow .08s;
}
.lights span.red { background: #FF2A2A; box-shadow: 0 0 22px 4px rgba(255, 42, 42, .75); }
.lights.go span { background: #2BE05A; box-shadow: 0 0 22px 4px rgba(43, 224, 90, .75); }
.count-text {
  margin: 0; font: italic 900 clamp(3rem, 12vw, 6rem)/1 var(--f-display); color: var(--c-yellow);
  -webkit-text-stroke: 3px var(--c-ink); paint-order: stroke fill; text-shadow: 5px 5px 0 var(--c-ink);
}

.toast {
  position: absolute; z-index: 40; left: 50%; bottom: max(24px, env(safe-area-inset-bottom));
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  max-width: calc(100% - 32px); padding: 12px 18px;
  font-weight: 700; color: var(--c-cream); background: var(--c-ink); border: 2px solid var(--c-cream); border-radius: 10px;
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---- Touch controls ----------------------------------------------------- */
.touch-controls {
  position: absolute; z-index: 18; left: 0; right: 0; bottom: max(18px, env(safe-area-inset-bottom));
  display: flex; justify-content: space-between; padding: 0 max(18px, env(safe-area-inset-left));
  pointer-events: none;
}
.touch-controls[hidden] { display: none; }
.touch-btn {
  pointer-events: auto; touch-action: none;
  display: grid; place-items: center; width: 88px; height: 88px;
  color: var(--c-ink); background: rgba(255, 243, 227, .8);
  border: 4px solid var(--c-ink); border-radius: 50%; box-shadow: 4px 4px 0 var(--c-ink);
}
.touch-btn svg { width: 44px; height: 44px; fill: currentColor; }
.touch-btn.is-down { background: var(--c-yellow); transform: translate(3px, 3px); box-shadow: 1px 1px 0 var(--c-ink); }

/* ---- Screens (menus) ------------------------------------------------------ */
.screen {
  position: absolute; inset: 0; z-index: 28;
  display: grid; place-items: center;
  padding: max(72px, calc(env(safe-area-inset-top) + 64px)) 16px max(16px, env(safe-area-inset-bottom));
  background: radial-gradient(ellipse at center, rgba(11, 11, 18, .25), rgba(11, 11, 18, .7));
  overflow-y: auto;
  touch-action: pan-y;
}
.screen[hidden] { display: none; }

.panel {
  width: 100%; max-width: 760px;
  padding: clamp(18px, 3vw, 30px);
  background: var(--c-cream); color: var(--c-ink);
  border: var(--border); border-radius: 18px; box-shadow: 8px 8px 0 var(--c-ink);
  user-select: text;
}
.panel-small { max-width: 520px; text-align: center; }
.panel h2 { margin: 0 0 14px; font: 900 clamp(2.2rem, 7vw, 3.2rem)/.95 var(--f-display); text-transform: uppercase; letter-spacing: .02em; }

.logo {
  margin: 0; line-height: .82;
  font: italic 900 clamp(3.2rem, 12vw, 6.2rem)/.82 var(--f-display); text-transform: uppercase; letter-spacing: .01em;
}
.logo span { display: inline-block; -webkit-text-stroke: 3px var(--c-ink); paint-order: stroke fill; text-shadow: 5px 5px 0 var(--c-ink); }
.logo-turbo { color: var(--c-red); transform: skewX(-6deg); }
.logo-pista { color: var(--c-yellow); transform: skewX(-6deg); }
.tagline { margin: 12px 0 0; font-weight: 600; color: var(--c-muted); }

.car-picker { margin: 18px 0 0; padding: 0; border: 0; min-width: 0; }
.car-picker legend { padding: 0; margin-bottom: 8px; font: 900 1.3rem/1 var(--f-display); text-transform: uppercase; letter-spacing: .04em; }
.cars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.car-option {
  position: relative; display: grid; justify-items: center; gap: 2px; padding: 8px 6px 10px;
  background: var(--c-paper); border: 3px solid var(--c-ink); border-radius: 12px; cursor: pointer;
  text-align: center;
  transition: transform .1s, box-shadow .1s, background-color .15s;
}
.car-option:hover { transform: translateY(-2px); }
.car-option input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.car-option canvas { width: 100%; max-width: 150px; height: auto; aspect-ratio: 12 / 5; }
.car-name { font: 900 1.25rem/1 var(--f-display); text-transform: uppercase; letter-spacing: .04em; }
.car-desc { font-size: .78rem; line-height: 1.25; color: var(--c-muted); }
.car-option:has(input:checked) { background: #FFE9A8; box-shadow: 4px 4px 0 var(--c-ink); transform: translate(-2px, -2px); }
.car-option:has(input:checked)::after {
  content: "✓"; position: absolute; top: -10px; right: -10px; display: grid; place-items: center; width: 28px; height: 28px;
  font-weight: 900; color: #fff; background: var(--c-red); border: 3px solid var(--c-ink); border-radius: 50%;
}
.car-option:has(input:focus-visible) { outline: 3px solid var(--c-blue); outline-offset: 3px; }

.start-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 18px; }
.btn-big { min-height: 58px; padding: 12px 34px; font-size: 1.3rem; }
.best-line { margin: 0; font-weight: 700; }
.best-line strong { font: 900 1.5rem/1 var(--f-display); letter-spacing: .03em; }

.howto { margin-top: 16px; border-top: 2px dashed var(--c-ink); padding-top: 10px; }
.howto summary { cursor: pointer; font: 900 1.2rem/1.6 var(--f-display); text-transform: uppercase; letter-spacing: .04em; }
.howto ul { margin: 8px 0 0; padding-left: 20px; }
.howto li { margin: 4px 0; }
kbd {
  display: inline-block; min-width: 1.8em; padding: 0 .35em; text-align: center;
  font: 700 .85em/1.5 var(--f-sans); background: var(--c-paper); border: 2px solid var(--c-ink); border-radius: 5px; box-shadow: 0 2px 0 var(--c-ink);
}

.stack { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 8px; }
.stack .btn-big { grid-column: 1 / -1; }
#screen-pause .stack { grid-template-columns: 1fr; }
.hint { margin: 14px 0 0; font-size: .9rem; color: var(--c-muted); }

.record-badge {
  display: inline-block; margin: 0 0 10px; padding: 4px 14px;
  font: 900 1.2rem/1.3 var(--f-display); text-transform: uppercase; letter-spacing: .06em;
  background: var(--c-yellow); border: 3px solid var(--c-ink); border-radius: 999px;
  animation: pulse 1s ease-in-out infinite alternate;
}
@keyframes pulse { to { transform: scale(1.08) rotate(-2deg); } }
.final-score { margin: 0; }
.final-score strong { display: block; font: 900 clamp(3.4rem, 12vw, 5rem)/1 var(--f-display); color: var(--c-red); letter-spacing: .02em; }
.final-score span { font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.final-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 14px 0; }
.final-stats > div { padding: 8px; background: var(--c-paper); border: 2px solid var(--c-ink); border-radius: 10px; }
.final-stats dt { font: 700 .72rem/1.2 var(--f-sans); text-transform: uppercase; letter-spacing: .08em; color: var(--c-muted); }
.final-stats dd { margin: 0; font: 900 1.4rem/1.1 var(--f-display); }
@media (max-width: 420px) { .final-stats { grid-template-columns: repeat(2, 1fr); } }

.noscript { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; color: var(--c-cream); font-weight: 700; }

/* ---- Small screens ---------------------------------------------------------- */
@media (max-width: 640px) {
  .cars { grid-template-columns: repeat(2, 1fr); }
  .hud { grid-template-columns: auto 1fr; }
  .hud-stats { grid-column: 1 / -1; grid-row: 2; }
  .hud-stats > div { padding: 3px 8px 4px; }
  .hud-stats dd { font-size: 1rem; }
  .hud-score strong { font-size: 1.7rem; }
  .start-actions .btn-big { flex: 1; }
  .touch-btn { width: 80px; height: 80px; }
}

/* Phones in landscape: short screen, so the start panel uses two columns. */
@media (orientation: landscape) and (max-height: 540px) {
  .screen { padding-top: 64px; place-items: start center; }
  .panel-start {
    max-width: 900px;
    display: grid; grid-template-columns: 1fr 1.25fr; gap: 0 20px; align-items: start;
  }
  .panel-start .start-head { grid-column: 1; }
  .panel-start .start-actions { grid-column: 1; }
  .panel-start .car-picker { grid-column: 2; grid-row: 1 / span 3; margin-top: 0; }
  .panel-start .howto { grid-column: 1 / -1; }
  .logo { font-size: 3rem; }
  .cars { grid-template-columns: repeat(2, 1fr); }
  .car-desc { display: none; }
  .hud-stats dd { font-size: 1rem; }
  .hud-score strong { font-size: 1.6rem; }
  .panel-small { max-width: 640px; }
  #screen-over .stack, #screen-pause .stack { grid-template-columns: repeat(3, 1fr); }
  .stack .btn-big { grid-column: auto; }
  .final-stats { grid-template-columns: repeat(4, 1fr); margin: 10px 0; }
  .touch-btn { width: 76px; height: 76px; }
}

@media (prefers-reduced-motion: reduce) {
  .banner.show { animation: banner-still 2.2s linear forwards !important; }
  @keyframes banner-still { 0%, 85% { opacity: 1; transform: translate(-50%, -50%); } 100% { opacity: 0; transform: translate(-50%, -50%); } }
  .record-badge { animation: none; }
}