:root{--bg0: #070b18;--bg1: #101a35;--ink: #eaf0ff;--ink-dim: #8a97c0;--accent: #7cf5d0;--accent-2: #7aa2ff;--danger: #ff7ab6;--safe-t: env(safe-area-inset-top, 0px);--safe-b: env(safe-area-inset-bottom, 0px)}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{height:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,PingFang SC,Helvetica Neue,system-ui,sans-serif;background:var(--bg0);color:var(--ink);user-select:none;-webkit-user-select:none;overscroll-behavior:none;touch-action:none}#app{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column}#app:before{content:"";position:absolute;top:-20%;right:-20%;bottom:-20%;left:-20%;background:radial-gradient(45% 35% at 20% 15%,rgba(122,162,255,.28),transparent 60%),radial-gradient(40% 30% at 80% 30%,rgba(255,122,182,.18),transparent 60%),radial-gradient(50% 40% at 50% 85%,rgba(124,245,208,.16),transparent 60%),linear-gradient(160deg,var(--bg1),var(--bg0));filter:blur(30px);animation:drift 18s ease-in-out infinite alternate;z-index:0}@keyframes drift{0%{transform:translateZ(0) scale(1)}to{transform:translate3d(2%,-2%,0) scale(1.06)}}#stage{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:1;touch-action:none}.hud{position:relative;z-index:3;display:flex;align-items:center;gap:18px;padding:calc(var(--safe-t) + 14px) 20px 6px;pointer-events:none}.hud__label{display:block;font-size:10px;letter-spacing:.22em;color:var(--ink-dim);text-transform:uppercase}.hud__value{display:block;font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1;background:linear-gradient(120deg,#fff,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.hud__value--best{font-size:18px;background:linear-gradient(120deg,#fff,var(--accent-2));-webkit-background-clip:text;background-clip:text}.hud__value--time{font-size:20px;background:linear-gradient(120deg,#fff,#ffd76e);-webkit-background-clip:text;background-clip:text}.hud__time,.hud__score,.hud__best{display:flex;flex-direction:column}.hud__combo{margin-left:auto;font-size:15px;font-weight:700;color:var(--accent);opacity:0;transform:scale(.6);transition:opacity .18s,transform .18s;text-shadow:0 0 14px rgba(124,245,208,.6)}.hud__combo.show{opacity:1;transform:scale(1)}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:5;display:grid;place-items:center;padding:24px;background:#070b188c;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);opacity:0;pointer-events:none;transition:opacity .32s ease}.overlay.show{opacity:1;pointer-events:auto}.panel{width:min(340px,88vw);padding:34px 26px 26px;border-radius:28px;text-align:center;background:linear-gradient(165deg,#ffffff1f,#ffffff08);border:1px solid rgba(255,255,255,.16);box-shadow:0 24px 70px #0000008c,inset 0 1px #ffffff40;transform:translateY(16px) scale(.96);transition:transform .36s cubic-bezier(.2,.9,.25,1.2)}.overlay.show .panel{transform:translateY(0) scale(1)}.title{font-size:40px;font-weight:800;letter-spacing:.06em;background:linear-gradient(120deg,var(--accent),var(--accent-2),var(--danger));background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 4s linear infinite}@keyframes shine{to{background-position:200% center}}.subtitle{margin-top:8px;font-size:14px;color:var(--ink-dim)}.final{margin:20px 0 4px}.final__score{font-size:52px;font-weight:800;font-variant-numeric:tabular-nums;background:linear-gradient(120deg,#fff,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.final__best{margin-top:4px;font-size:13px;color:var(--ink-dim)}.btn{margin-top:22px;width:100%;padding:15px 20px;border:none;border-radius:18px;font-size:17px;font-weight:700;color:#04121a;cursor:pointer;background:linear-gradient(120deg,var(--accent),var(--accent-2));box-shadow:0 12px 30px #7cf5d052;transition:transform .14s,box-shadow .2s}.btn:active{transform:scale(.96);box-shadow:0 6px 16px #7cf5d03d}.hint{margin-top:14px;font-size:11px;color:#8a97c0bf}.tip{position:relative;z-index:3;margin-top:auto;padding:8px 20px calc(var(--safe-b) + 16px);text-align:center;font-size:12px;color:var(--ink-dim);opacity:0;transition:opacity .3s;pointer-events:none}.tip.show{opacity:1}