:root{--bg-glass: rgba(15, 23, 42, .82);--border-glass: rgba(255, 255, 255, .18);--accent-primary: #3b82f6;--accent-gold: #facc15;--accent-green: #10b981;--accent-orange: #f97316;--text-light: #f8fafc}*{box-sizing:border-box;margin:0;padding:0;user-select:none;-webkit-user-select:none}body,html,#root,.game-screen{width:100%;height:100%;overflow:hidden;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:#0f172a;color:var(--text-light)}#canvas-container{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1;touch-action:none}.portal-wrapper{width:100%;height:100%;overflow-y:auto;background:radial-gradient(circle at top,#1e293b,#0f172a 70%);padding:32px 20px}.portal-container{max-width:1060px;margin:0 auto}.portal-container-simple{max-width:780px}.portal-header{text-align:center;margin-bottom:20px}.portal-tag{display:inline-flex;align-items:center;gap:6px;background:#38bdf829;color:#38bdf8;border:1px solid rgba(56,189,248,.35);padding:5px 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alternate}.race-start-btn:active{transform:scale(.96);filter:brightness(1.2)}.race-countdown-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:25;pointer-events:none;display:flex;align-items:center;justify-content:center}.race-countdown-number{font-size:clamp(78px,18vw,130px);font-weight:900;color:#facc15;text-shadow:0 8px 30px rgba(0,0,0,.9),0 0 35px rgba(250,204,21,.85);animation:countdownPop .75s cubic-bezier(.175,.885,.32,1.275) forwards}.race-countdown-number.is-go{color:#4ade80;text-shadow:0 8px 30px rgba(0,0,0,.9),0 0 40px rgba(74,222,128,.95)}@keyframes countdownPop{0%{opacity:0;transform:scale(.35)}45%{opacity:1;transform:scale(1.18)}to{opacity:1;transform:scale(1)}}.brake-btn{width:56px;height:50px;padding:0;font-size:12px;font-weight:900;border-radius:15px;background:linear-gradient(135deg,#ef4444,#b91c1c);border:2px solid rgba(255,255,255,.45);box-shadow:0 5px 15px 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rgba(255,255,255,.12);display:flex;justify-content:flex-end;gap:8px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat-card{background:#ffffff0f;border-radius:12px;padding:12px;text-align:center;display:flex;flex-direction:column;gap:4px}.stat-card strong{font-size:20px;color:var(--accent-gold)}.auth-tabs{display:flex;gap:8px;margin-bottom:10px}.auth-error{background:#ef444433;border:1.5px solid #ef4444;color:#fca5a5;padding:8px 12px;border-radius:10px;font-size:12px;font-weight:700}.auth-profile-box{text-align:center;padding:8px 4px}.auth-avatar{font-size:44px;margin-bottom:6px}.leaderboard-table-wrap{overflow-x:auto;border-radius:12px;border:1px solid rgba(255,255,255,.14)}.leaderboard-table{width:100%;border-collapse:collapse;font-size:13px;text-align:left}.leaderboard-table th{background:#ffffff14;padding:10px 12px;color:#94a3b8;font-size:11px;text-transform:uppercase}.leaderboard-table td{padding:10px 12px;border-top:1px solid 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28deg);mask-image:radial-gradient(circle at center,transparent 42%,black 78%);-webkit-mask-image:radial-gradient(circle at center,transparent 42%,black 78%);animation:speedLineFlicker .1s infinite alternate ease-in-out;transition:opacity .2s ease-out}.speed-lines-overlay.nitro-warp{background:radial-gradient(circle at center,transparent 45%,rgba(249,115,22,.18) 68%,rgba(239,68,68,.5) 100%),repeating-conic-gradient(from 0deg,transparent 0deg 7deg,rgba(254,240,138,.45) 7.5deg 8.5deg,transparent 9deg 16deg,rgba(249,115,22,.55) 16.5deg 17.5deg,transparent 18deg 25deg);animation:speedLineFlicker .08s infinite alternate ease-in-out,nitroWarpPulse .25s infinite alternate}@keyframes speedLineFlicker{0%{transform:scale(1);filter:brightness(.92)}50%{transform:scale(1.02);filter:brightness(1.22)}to{transform:scale(.99);filter:brightness(1.05)}}@keyframes nitroWarpPulse{0%{transform:scale(1)}to{transform:scale(1.035)}}.showroom-container{display:flex;flex-direction:row;flex:1;min-height:0;width:100%;position:relative;overflow:hidden}.showroom-stage-pane{flex:1;min-width:0;position:relative;overflow:hidden;display:flex;flex-direction:column}.showroom-control-deck{width:420px;min-height:0;display:flex;flex-direction:column;z-index:10;flex-shrink:0}.showroom-deck-footer{padding-bottom:calc(14px + env(safe-area-inset-bottom,0px))!important}@media (max-width: 900px){.showroom-container{flex-direction:column}.showroom-stage-pane{flex:none;height:clamp(230px,40dvh,400px)}.showroom-control-deck{width:100%;flex:1;border-left:none!important;border-top:1.5px solid rgba(255,255,255,.12)}.showroom-spec-card{display:none!important}}@media (max-width: 600px){.showroom-header{height:50px!important;padding:0 10px!important}.showroom-header 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landscape){.showroom-container{flex-direction:row}.showroom-stage-pane{flex:1;height:auto}.showroom-control-deck{width:min(46vw,380px);border-top:none!important;border-left:1.5px solid rgba(255,255,255,.12)!important}}