:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#071014;color:#f6fbff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}body{min-width:320px;background:radial-gradient(circle at 50% -20%,rgba(31,174,168,.28),transparent 36rem),linear-gradient(180deg,#071014,#0a171c 52%,#05090c)}#app{position:relative}#gameCanvas{display:block;width:100vw;height:100vh;outline:none;touch-action:none}.hud{position:absolute;top:max(16px,env(safe-area-inset-top));left:50%;z-index:5;display:grid;width:min(1040px,calc(100vw - 24px));grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;transform:translate(-50%);pointer-events:none;transition:opacity .16s ease}.hud.is-hidden{opacity:0}.hud-card{min-width:0;padding:10px 12px;border:1px solid rgba(255,255,255,.14);border-radius:8px;background:#050e12ad;box-shadow:0 10px 30px #00000038;backdrop-filter:blur(14px)}.hud-label{display:block;margin-bottom:2px;color:#91a7af;font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.hud-card strong{font-size:clamp(1rem,2.5vw,1.55rem);line-height:1}.danger-text{color:#ff7369}.hud-unit{color:#91a7af;font-size:.72rem;font-weight:700}.lane-pressure{display:grid;height:20px;grid-template-columns:repeat(4,1fr);gap:5px}.lane-pressure span{border-radius:999px;background:linear-gradient(180deg,#52e29d,#1e9d73);box-shadow:inset 0 0 0 1px #ffffff2e;transform-origin:bottom}.lane-pressure span.warning{background:linear-gradient(180deg,#ffd166,#d88920)}.lane-pressure span.danger{background:linear-gradient(180deg,#ff7369,#c33131)}.mute-button{position:absolute;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:9;min-height:38px;padding:0 14px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:#050e12ad;color:#f6fbff;font-weight:800;cursor:pointer;backdrop-filter:blur(14px)}.overlay{position:absolute;inset:0;z-index:8;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,#02080a66,#02080ab3);opacity:0;pointer-events:none;transition:opacity .18s ease}.overlay.active{opacity:1;pointer-events:auto}.panel{width:min(560px,100%);padding:clamp(22px,5vw,38px);border:1px solid rgba(255,255,255,.16);border-radius:8px;background:#061216d1;box-shadow:0 30px 80px #0000006b;backdrop-filter:blur(18px)}.panel.compact{width:min(420px,100%);text-align:center}.eyebrow{margin:0 0 10px;color:#64f1b5;font-size:.78rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}h1,h2,.lede{margin-top:0}h1{max-width:11ch;margin-bottom:14px;font-size:clamp(2.35rem,8vw,5.2rem);line-height:.9}h2{margin-bottom:12px;font-size:clamp(1.8rem,5vw,3rem);line-height:1}.lede,.panel p{color:#c7d6db;line-height:1.55}.primary-button{width:100%;min-height:52px;margin:12px 0 18px;border:0;border-radius:8px;background:linear-gradient(135deg,#57e69f,#1bb4c5);color:#041012;font-size:1rem;font-weight:950;cursor:pointer;box-shadow:0 16px 36px #1abea747}.primary-button:focus-visible,.mute-button:focus-visible{outline:3px solid #f9d65c;outline-offset:3px}.controls-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;color:#b7c9cf;font-size:.9rem}kbd{display:inline-flex;min-width:1.8em;min-height:1.7em;align-items:center;justify-content:center;padding:0 .4em;border:1px solid rgba(255,255,255,.22);border-radius:5px;background:#ffffff14;color:#fff;font-family:inherit;font-size:.78em;font-weight:850}.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:20px 0 10px}.stats div{padding:12px;border:1px solid rgba(255,255,255,.12);border-radius:8px;background:#ffffff0f}.stats dt{color:#91a7af;font-size:.72rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.stats dd{margin:4px 0 0;font-size:1.4rem;font-weight:950}.small-copy{margin-bottom:0;text-align:center}@media(max-width:700px){.hud{grid-template-columns:repeat(2,minmax(0,1fr))}.lane-readout{grid-column:span 2}.controls-grid,.stats{grid-template-columns:1fr}.mute-button{bottom:max(10px,env(safe-area-inset-bottom));right:10px}}