:root {
  color-scheme: dark;
  --ink: #172b29;
  --panel: rgba(24, 43, 40, .92);
  --panel-soft: rgba(31, 57, 52, .82);
  --cream: #f8f1dd;
  --muted: #b8c7bd;
  --yellow: #ffd166;
  --orange: #f4a261;
  --red: #f35b48;
  --teal: #2a9d8f;
  --line: rgba(255,255,255,.16);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: #172b29; }
body { overscroll-behavior: none; touch-action: none; }
button, input { font: inherit; }
button { cursor: pointer; }

#game-shell { position: relative; width: 100%; height: 100%; min-height: 480px; isolation: isolate; background: #203b35; }
#game-canvas, #game-canvas canvas { width: 100%; height: 100%; display: block; }
#game-canvas { position: absolute; inset: 0; }
#game-canvas::after { content: ''; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 120px rgba(0,0,0,.28); }

.screen { position: absolute; inset: 0; z-index: 10; display: none; pointer-events: none; }
.screen.is-active { display: flex; pointer-events: auto; }

.menu-screen { align-items: center; padding: clamp(22px, 4vw, 64px); background: linear-gradient(90deg, rgba(18,37,34,.95) 0%, rgba(18,37,34,.78) 46%, rgba(18,37,34,.08) 76%); }
.menu-screen::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(255,209,102,.13), transparent 34%, rgba(0,0,0,.25)); pointer-events: none; }
.postcard-mark { position: absolute; top: 24px; right: 28px; color: rgba(255,255,255,.76); font: 700 12px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; letter-spacing: .22em; transform: rotate(1.5deg); }
.menu-grid { position: relative; width: min(1180px, 100%); display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(330px, .7fr); gap: clamp(28px, 5vw, 82px); align-items: center; }
.title-block { max-width: 680px; }
.eyebrow { margin: 0 0 10px; color: var(--yellow); font: 800 13px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; letter-spacing: .2em; }
h1, h2, p { margin-top: 0; }
h1 { margin: 0; font-family: "Arial Narrow", "Roboto Condensed", Impact, sans-serif; text-transform: uppercase; line-height: .76; letter-spacing: -.035em; filter: drop-shadow(0 8px 10px rgba(0,0,0,.24)); }
h1 span { display: block; font-size: clamp(56px, 8.8vw, 126px); font-weight: 700; color: var(--cream); }
h1 strong { display: block; margin-left: .52em; font-size: clamp(72px, 11vw, 154px); font-weight: 900; color: var(--yellow); transform: rotate(-2deg); transform-origin: left center; }
.pitch { max-width: 590px; margin: 24px 0 28px; color: #edf2e9; font: 600 clamp(16px, 1.45vw, 21px)/1.45 Inter, ui-sans-serif, system-ui, sans-serif; }
.menu-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.button { min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 8px; color: #fff; font: 800 16px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; letter-spacing: .04em; text-transform: uppercase; box-shadow: 0 8px 16px rgba(0,0,0,.18); transition: transform .16s ease, filter .16s ease, background .16s ease; }
.button:hover { transform: translateY(-2px); filter: brightness(1.08); }
.button:active { transform: translateY(0); }
.button:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.button.primary { color: #172b29; background: var(--yellow); border-color: #ffe49a; }
.button.secondary { background: var(--teal); border-color: #5ac4b6; }
.button.ghost { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.24); }
.button.wide { width: 100%; }
.stage-meta { display: flex; gap: 22px; margin-top: 16px; color: var(--muted); font: 700 12px/1.3 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; letter-spacing: .08em; text-transform: uppercase; }

.setup-card { position: relative; padding: 148px 24px 22px; border: 1px solid rgba(255,255,255,.18); border-radius: 22px; background: linear-gradient(150deg, rgba(27,52,47,.96), rgba(17,33,31,.91)); box-shadow: 0 26px 60px rgba(0,0,0,.34), inset 0 1px rgba(255,255,255,.07); transform: rotate(1deg); overflow: hidden; }
.setup-card::before { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(135deg, transparent 0 18px, rgba(255,255,255,.018) 18px 20px); pointer-events: none; }
.setup-car-art { position: absolute; top: 22px; left: 50%; width: 260px; height: 116px; transform: translateX(-50%) rotate(-7deg); filter: drop-shadow(0 18px 12px rgba(0,0,0,.34)); }
.setup-car-art::before { content: ''; position: absolute; inset: 24px 16px; border-radius: 42px 18px 18px 42px; background: #f35b48; border: 4px solid rgba(255,255,255,.8); box-shadow: inset 0 0 0 9px #29383f, inset 0 0 0 17px #a8dadc; }
.setup-car-art::after { content: ''; position: absolute; left: 122px; top: 21px; width: 22px; height: 75px; background: var(--yellow); box-shadow: -91px 8px 0 -5px #1c2429, 91px 8px 0 -5px #1c2429, -91px 55px 0 -5px #1c2429, 91px 55px 0 -5px #1c2429; }
.setup-car-art.ridgeback-stable::before { background: #2f6f86; border-radius: 34px 16px 16px 34px; }
.setup-car-art.ridgeback-stable::after { background: var(--orange); }
.setup-heading { position: relative; display: grid; grid-template-columns: 40px 1fr 40px; align-items: center; text-align: center; }
.setup-heading small { color: var(--muted); font: 700 11px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; letter-spacing: .18em; }
.setup-heading h2 { margin: 4px 0 0; color: #fff; font: 900 30px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; text-transform: uppercase; }
.icon-button { width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 50%; color: #fff; background: rgba(255,255,255,.06); font-size: 28px; line-height: 1; }
.setup-card > p { position: relative; min-height: 48px; margin: 18px 0; color: #c8d4cc; font-size: 13px; line-height: 1.5; }
.stat { position: relative; display: grid; grid-template-columns: 86px 1fr; align-items: center; gap: 10px; margin: 11px 0; color: #d8e2dc; font: 700 12px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; text-transform: uppercase; letter-spacing: .05em; }
.stat i { display: block; height: 7px; border-radius: 8px; background: rgba(255,255,255,.09); overflow: hidden; }
.stat b { display: block; height: 100%; width: 50%; border-radius: inherit; background: linear-gradient(90deg, var(--teal), var(--yellow)); }
.medal-strip { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-top: 20px; padding-top: 15px; border-top: 1px solid var(--line); font: 700 11px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; }
.medal-strip span { display: flex; gap: 4px; align-items: center; }
.medal-strip .gold { color: #ffd166; }.medal-strip .silver { color: #d8e2dc; }.medal-strip .bronze { color: #d9925b; }

.builder-screen, .settings-screen, .result-screen, .pause-screen { align-items: center; justify-content: center; padding: 24px; background: rgba(10,24,22,.8); backdrop-filter: blur(6px); }
.builder-panel { width: min(1180px, 100%); max-height: calc(100vh - 40px); overflow: auto; padding: 24px; border-radius: 20px; background: var(--panel); border: 1px solid var(--line); box-shadow: 0 30px 80px rgba(0,0,0,.42); }
.builder-panel header { display: flex; justify-content: space-between; align-items: start; gap: 20px; margin-bottom: 18px; }
.builder-panel h2, .modal h2 { margin: 0; font: 900 clamp(34px, 4vw, 54px)/.9 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; text-transform: uppercase; color: var(--cream); }
.builder-layout { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(300px, .75fr); gap: 20px; }
#builder-preview { width: 100%; min-height: 350px; height: 100%; border-radius: 14px; border: 1px solid rgba(255,255,255,.18); background: #9cab65; box-shadow: inset 0 0 45px rgba(0,0,0,.18); }
.builder-tools { display: flex; flex-direction: column; min-width: 0; }
.builder-tools > p { color: #c6d4cb; font-size: 13px; line-height: 1.5; }
.piece-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.piece-grid button { min-height: 82px; border: 1px solid rgba(255,255,255,.16); border-radius: 10px; color: #fff; background: rgba(255,255,255,.07); }
.piece-grid button:hover { background: rgba(255,209,102,.16); border-color: rgba(255,209,102,.6); }
.piece-grid b { display: block; color: var(--yellow); font: 900 29px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; }
.piece-grid span { display: block; margin-top: 7px; font: 700 12px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; text-transform: uppercase; }
.builder-row { display: flex; gap: 8px; align-items: center; margin-top: 11px; }
.builder-row span { margin-left: auto; color: var(--muted); font: 700 12px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; text-transform: uppercase; }
.share-label { display: grid; gap: 6px; margin-top: 16px; color: var(--yellow); font: 800 12px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; text-transform: uppercase; letter-spacing: .08em; }
.share-label input { width: 100%; min-width: 0; height: 44px; padding: 0 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 8px; color: #fff; background: rgba(0,0,0,.18); font: 700 16px/1 monospace; text-transform: uppercase; }
.builder-status { min-height: 42px; margin: 12px 0; padding: 10px 12px; border-left: 3px solid var(--teal); color: #dce9e1; background: rgba(42,157,143,.09); font-size: 12px !important; }

.modal { width: min(520px, 100%); padding: 28px; border-radius: 20px; border: 1px solid rgba(255,255,255,.18); background: linear-gradient(145deg, rgba(31,57,52,.98), rgba(18,35,32,.98)); box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.settings-card { width: min(660px, 100%); max-height: calc(100vh - 40px); overflow: auto; }
.settings-card > label { display: flex; justify-content: space-between; gap: 22px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.settings-card label span { display: grid; gap: 4px; }
.settings-card label b { color: #fff; font-size: 14px; }
.settings-card label small { color: var(--muted); font-size: 12px; line-height: 1.35; }
.settings-card input[type='checkbox'] { appearance: none; flex: 0 0 auto; width: 44px; height: 24px; border-radius: 20px; background: rgba(255,255,255,.12); box-shadow: inset 0 0 0 1px rgba(255,255,255,.14); transition: background .2s ease; }
.settings-card input[type='checkbox']::before { content: ''; display: block; width: 18px; height: 18px; margin: 3px; border-radius: 50%; background: #fff; transition: transform .2s ease; }
.settings-card input[type='checkbox']:checked { background: var(--teal); }
.settings-card input[type='checkbox']:checked::before { transform: translateX(20px); }
.settings-card .button { margin-top: 20px; }

.hud-screen { pointer-events: none; }
.hud-top { position: absolute; top: max(16px, env(safe-area-inset-top)); left: 50%; width: min(780px, calc(100% - 30px)); transform: translateX(-50%); display: grid; grid-template-columns: 1fr 120px 1fr; gap: 12px; align-items: start; }
.hud-card, .pacenote { min-height: 72px; border: 1px solid rgba(255,255,255,.2); border-radius: 12px; background: rgba(18,39,35,.86); box-shadow: 0 10px 25px rgba(0,0,0,.22); backdrop-filter: blur(5px); }
.hud-card { display: grid; align-content: center; padding: 11px 15px; }
.hud-card small { color: var(--muted); font: 700 11px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; letter-spacing: .12em; }
.hud-card strong { color: #fff; font: 900 30px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; }
.telemetry { text-align: right; }
.telemetry small { color: var(--yellow); }
.progress { height: 4px; margin-top: 7px; border-radius: 4px; background: rgba(255,255,255,.12); overflow: hidden; }
.progress i { display: block; width: 0; height: 100%; background: var(--yellow); }
.pacenote { display: grid; place-items: center; grid-template-columns: 1fr 1fr; padding: 6px 12px; color: #172b29; background: var(--yellow); }
.pacenote span { font: 900 40px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; }.pacenote b { font: 900 30px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; }
.brake-warning { position: absolute; top: 120px; left: 50%; transform: translate(-50%, -12px) scale(.9); opacity: 0; padding: 8px 18px; border-radius: 10px; color: #fff; background: var(--red); box-shadow: 0 8px 28px rgba(243,91,72,.42); font: 900 26px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; transition: opacity .15s ease, transform .15s ease; }
.brake-warning span { display: inline-grid; place-items: center; width: 28px; height: 28px; margin-right: 5px; border-radius: 50%; color: var(--red); background: #fff; }
.brake-warning.is-visible { opacity: 1; transform: translate(-50%, 0) scale(1); }
.controls-hint { position: absolute; left: 50%; bottom: max(14px, env(safe-area-inset-bottom)); transform: translateX(-50%); padding: 7px 12px; border-radius: 8px; color: rgba(255,255,255,.75); background: rgba(15,31,29,.72); font: 700 11px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; letter-spacing: .04em; white-space: nowrap; }

.result-card, .pause-card { text-align: center; }
.result-card > strong { display: block; margin: 20px 0 12px; color: var(--yellow); font: 900 clamp(54px, 8vw, 88px)/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; }
.result-card > p:not(.eyebrow) { color: var(--muted); line-height: 1.5; }
.result-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }
.pause-card { display: grid; gap: 10px; }
.pause-card .eyebrow { margin-bottom: 0; }.pause-card h2 { margin-bottom: 14px; }

.countdown { position: absolute; z-index: 25; left: 50%; top: 48%; transform: translate(-50%,-50%) scale(.6); opacity: 0; color: var(--yellow); text-shadow: 0 10px 30px rgba(0,0,0,.55), 4px 4px 0 #1f3a35; font: 900 clamp(100px, 18vw, 210px)/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; pointer-events: none; transition: opacity .15s ease, transform .2s cubic-bezier(.2,1.8,.4,1); }
.countdown.is-visible { opacity: 1; transform: translate(-50%,-50%) scale(1); }

#touch-controls { position: absolute; z-index: 30; inset: 0; display: none; pointer-events: none; }
#touch-controls.is-enabled { display: block; }
#touch-controls button { pointer-events: auto; border: 1px solid rgba(255,255,255,.35); color: #fff; background: rgba(18,39,35,.7); backdrop-filter: blur(5px); box-shadow: 0 8px 20px rgba(0,0,0,.24); }
.touch-steer, .touch-pedals { position: absolute; bottom: max(22px, env(safe-area-inset-bottom)); display: flex; gap: 10px; }
.touch-steer { left: max(18px, env(safe-area-inset-left)); }.touch-pedals { right: max(18px, env(safe-area-inset-right)); }
.touch-steer button { width: 66px; height: 66px; border-radius: 20px; font-size: 26px; }
.touch-pedals button { width: 72px; height: 72px; border-radius: 50%; font: 900 18px/1 "Arial Narrow", "Roboto Condensed", Impact, sans-serif; }
#touch-go { color: #172b29 !important; background: rgba(255,209,102,.86) !important; }
.touch-reset { position: absolute; left: 50%; bottom: max(18px, env(safe-area-inset-bottom)); width: 46px; height: 46px; transform: translateX(-50%); border-radius: 50%; font-size: 22px; }
body:not([data-mode='hud']) #touch-controls { display: none !important; }

@media (max-width: 900px), (max-height: 620px) {
  .menu-screen { padding: 20px; }
  .menu-grid { grid-template-columns: 1fr; gap: 14px; }
  .setup-card { display: none; }
  .pitch { max-width: 520px; margin: 12px 0 16px; font-size: 15px; }
  h1 span { font-size: clamp(48px, 10vw, 80px); } h1 strong { font-size: clamp(64px, 14vw, 110px); }
  .postcard-mark { display: none; }
  .builder-layout { grid-template-columns: 1fr; }
  #builder-preview { min-height: 260px; }
  .builder-panel { padding: 16px; }
  .hud-top { grid-template-columns: 1fr 82px 1fr; gap: 7px; }
  .hud-card, .pacenote { min-height: 58px; }
  .hud-card strong { font-size: 23px; }.pacenote span { font-size: 30px; }.pacenote b { font-size: 22px; }
  .controls-hint { display: none; }
}

@media (max-width: 620px) {
  .menu-actions { display: grid; grid-template-columns: 1fr; }
  .stage-meta { display: none; }
  .builder-screen { padding: 8px; }
  .builder-panel header { align-items: center; }
  .piece-grid { grid-template-columns: repeat(5, 1fr); }
  .piece-grid button { min-height: 66px; padding: 4px; }.piece-grid span { font-size: 9px; }
  .result-actions { grid-template-columns: 1fr; }
}