:root{--bg: #0a0d16;--ink: #e8eefc;--ink-dim: #8b97b8;--accent: #66dcff;--accent-soft: rgba(102, 220, 255, .15);--good: #49e6a0;--bad: #ff5d73;--panel: rgba(17, 22, 38, .94);--stroke: rgba(140, 165, 220, .18);--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;overflow:hidden;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}#app{position:fixed;inset:0;display:block;touch-action:none;isolation:isolate}#game{position:absolute;inset:0;width:100%;height:100%;display:block}#bloom{position:absolute;inset:0;width:100%;height:100%;display:block;mix-blend-mode:screen;mix-blend-mode:plus-lighter;opacity:.85;pointer-events:none}.crt{position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(to bottom,rgba(143,216,255,.05) 0 1px,transparent 1px 3px),radial-gradient(circle at center,#0000 30%,#00000073)}.hud{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:max(10px,env(safe-area-inset-top)) 14px 6px;pointer-events:none}.hud-center{text-align:center;flex:1;min-width:0}.hud-title{font-size:15px;font-weight:650;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hud-meta{font-size:12px;color:var(--ink-dim);font-variant-numeric:tabular-nums;margin-top:2px}.hud-meta .perfect{color:var(--good)}.icon-button{pointer-events:auto;width:40px;height:40px;flex:0 0 40px;border-radius:12px;border:1px solid var(--stroke);background:#141a2cb3;color:var(--ink);font-size:17px;line-height:1;cursor:pointer;transition:background .15s ease,transform .1s 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fade-up{0%{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%)}}.overlay{position:absolute;inset:0;display:grid;place-items:center;padding:20px;background:#060912b8;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:10;transition:opacity .18s ease}.overlay.hidden{display:none}.panel{width:min(440px,100%);max-height:100%;overflow-y:auto;background:var(--panel);border:1px solid var(--stroke);border-radius:20px;padding:24px;text-align:center;box-shadow:0 24px 60px #00000080;animation:pop .22s cubic-bezier(.2,.9,.3,1.4) both}@keyframes pop{0%{opacity:0;transform:scale(.94) translateY(10px)}to{opacity:1;transform:none}}.panel h1{margin:0 0 4px;font-size:26px;letter-spacing:-.01em}.panel h2{margin:0 0 4px;font-size:20px}.panel p{margin:0 0 16px;color:var(--ink-dim);font-size:13.5px;line-height:1.55}.panel 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input:focus{outline:none;border-color:var(--accent)}.version{position:absolute;right:10px;bottom:calc(6px + env(safe-area-inset-bottom,0px));z-index:11;font-size:11.5px;letter-spacing:.03em;color:var(--ink-dim);opacity:.7;pointer-events:none;user-select:none;animation:version-fade 5.2s ease forwards}@keyframes version-fade{0%,76%{opacity:.7}to{opacity:0}}.fps{position:absolute;left:10px;bottom:calc(6px + env(safe-area-inset-bottom,0px));z-index:11;font-size:11.5px;letter-spacing:.03em;font-variant-numeric:tabular-nums;color:var(--good);opacity:.7;pointer-events:none;user-select:none}.fps.warn{color:var(--accent)}.fps.bad{color:var(--bad)}