*,*:before,*:after{box-sizing:border-box}*{margin:0}html{interpolate-size:allow-keywords}body{line-height:1.5;-webkit-font-smoothing:antialiased}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit}p{overflow-wrap:break-word;text-wrap:pretty}h1,h2,h3,h4,h5,h6{overflow-wrap:break-word;text-wrap:balance}#root,#app{isolation:isolate}:root{font-family:SF Pro Rounded,ui-rounded,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;color-scheme:light dark;--color-bg: #f3f6fa;--color-surface: #ffffff;--color-surface-muted: #e7ecf2;--color-border: #d7e0e8;--color-text: #1b232c;--color-text-muted: #5b6673;--color-accent: #14b8cf;--color-accent-strong: #0e93a6;--color-accent-contrast: #04222a;--color-danger: #e0607a;--shadow-soft: 0 10px 30px -14px rgb(27 35 44 / .22);--radius-lg: 28px;--radius-pill: 999px}@media(prefers-color-scheme:dark){:root{--color-bg: #10151c;--color-surface: #1a212a;--color-surface-muted: #212a34;--color-border: #2c3743;--color-text: #f0f4f8;--color-text-muted: #98a4b1;--color-accent: #4fe3f5;--color-accent-strong: #7deefb;--color-accent-contrast: #04222a;--shadow-soft: 0 10px 30px -12px rgb(0 0 0 / .55)}}body{min-height:100dvh;background:var(--color-bg);color:var(--color-text)}h1,h2,h3{font-weight:700;letter-spacing:-.02em}p{font-weight:400;color:var(--color-text-muted)}kbd{display:inline-block;min-width:1.6em;padding:.1em .5em;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface-muted);color:var(--color-text);font:inherit;font-size:.85em}.page{max-width:80ch;margin-inline:auto;padding:2rem}.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-text);font:inherit;font-weight:600;cursor:pointer;box-shadow:var(--shadow-soft);transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease}.button:hover{transform:translateY(-1px)}.button:active{transform:translateY(0)}.button--primary{padding:.9rem 2rem;border-color:transparent;background:var(--color-accent);color:var(--color-accent-contrast);font-size:1.05rem}.button--pedal{width:4rem;height:4rem;font-size:1.5rem;padding:0}.game{display:flex;flex-direction:column;gap:1.25rem;min-height:100dvh;padding:1.5rem clamp(1rem,4vw,2.5rem) calc(1.5rem + env(safe-area-inset-bottom))}.hud{display:flex;justify-content:center;gap:clamp(.75rem,3vw,1.5rem)}.hud__stat{display:flex;flex-direction:column;align-items:center;gap:.15rem;min-width:5.5rem;padding:.6rem 1.1rem;border:1px solid var(--color-border);border-radius:var(--radius-pill);background:color-mix(in srgb,var(--color-surface) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-soft);transition:box-shadow .3s ease,color .3s ease}.hud__label{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}.hud__value{font-size:1.25rem;font-weight:700;font-variant-numeric:tabular-nums}.hud__value small{font-size:.65em;font-weight:600;color:var(--color-text-muted)}.hud__stat--boost{color:var(--color-accent-strong);box-shadow:0 0 0 2px var(--color-accent),var(--shadow-soft)}.track{position:relative;flex:1;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-soft);background:linear-gradient(180deg,#1b222b,#10151b 60%,#0b0f14)}.track:before,.track:after{content:"";position:absolute;top:0;bottom:0;width:6%;background:linear-gradient(180deg,transparent,var(--color-accent),transparent);opacity:.35}.track:before{left:0}.track:after{right:0}.track__road{position:absolute;inset:0;background-image:repeating-linear-gradient(180deg,transparent 0,transparent 6%,rgb(255 255 255 / .16) 6%,rgb(255 255 255 / .16) 10%);background-size:100% 20%;background-repeat:repeat-y}.sprite{position:absolute;width:15%;aspect-ratio:1 / 1.7;transform:translate(-50%,-50%);border-radius:30% 30% 45% 45%/20% 20% 35% 35%;transition:left .16s ease-out}.sprite--player{background:linear-gradient(180deg,var(--color-accent-strong),#0c2a30);box-shadow:0 0 0 2px var(--color-accent),0 12px 24px -10px #0009;z-index:2}.sprite--player:before{content:"";position:absolute;top:22%;left:20%;right:20%;height:22%;border-radius:40%;background:#ffffff8c}.sprite--player.sprite--boosted{box-shadow:0 0 0 2px var(--color-accent),0 0 24px 6px var(--color-accent)}.sprite--car{background:linear-gradient(180deg,#6b7683,#3b434d);box-shadow:0 10px 20px -10px #0009}.sprite--car:before{content:"";position:absolute;top:55%;left:20%;right:20%;height:20%;border-radius:40%;background:#ffffff59}.sprite--boost{width:9%;aspect-ratio:1;border-radius:30%;background:var(--color-accent);box-shadow:0 0 18px 4px var(--color-accent);animation:pulse .9s ease-in-out infinite alternate}@keyframes pulse{0%{transform:translate(-50%,-50%) scale(.85) rotate(45deg)}to{transform:translate(-50%,-50%) scale(1.05) rotate(45deg)}}.track__overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.9rem;padding:2rem;text-align:center;background:#0a0e12b8;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);animation:fade-in .4s ease-out}@keyframes fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.track__title{color:#f3f6fa;font-size:clamp(1.75rem,5vw,2.5rem)}.track__tagline{max-width:42ch;color:#f0f4f8d9}.track__hint{color:#f0f4f8b3;font-size:.9rem}.track__badge{padding:.3rem 1rem;border-radius:var(--radius-pill);background:var(--color-accent);color:var(--color-accent-contrast);font-weight:700;font-size:.85rem;letter-spacing:.04em;text-transform:uppercase}.controls{display:flex;justify-content:center;gap:1.5rem}