:root{--neon: #4df3ff;--neon2: #ff4dd2;--amber: #ffd24d;--bg: #05060a;--panel-bg: rgba(8, 12, 20, .82);--mono: "Cascadia Code", "Consolas", "Lucida Console", monospace}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);font-family:var(--mono);color:var(--neon);-webkit-user-select:none;user-select:none}canvas#gl,canvas#overlay{position:fixed;top:0;right:0;bottom:0;left:0;width:100vw;height:100vh;display:block}canvas#overlay{pointer-events:none}#crt{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:20;background:repeating-linear-gradient(to bottom,#0000,#0000 2px,#0000002e,#0000 4px),radial-gradient(ellipse at center,#0000 55%,#00000073);animation:flicker 4s infinite}@keyframes flicker{0%,to{opacity:1}92%{opacity:1}93%{opacity:.86}94%{opacity:1}97%{opacity:.93}}#topbar{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;align-items:center;gap:24px;padding:10px 18px;background:linear-gradient(to bottom,#05060ad9,#05060a00)}#logo{font-size:18px;font-weight:700;letter-spacing:3px;color:#fff;text-shadow:0 0 8px var(--neon),0 0 24px var(--neon)}#logo span{color:var(--neon2);text-shadow:0 0 8px var(--neon2),0 0 24px var(--neon2)}#menu{display:flex;gap:6px;flex:1}.demo-btn{font-family:var(--mono);font-size:12px;letter-spacing:2px;padding:6px 14px;background:transparent;color:#a0dcff99;border:1px solid rgba(77,243,255,.25);cursor:pointer;transition:all .15s}.demo-btn:hover{color:#fff;border-color:var(--neon)}.demo-btn.active{color:#001018;background:var(--neon);border-color:var(--neon);box-shadow:0 0 16px var(--neon);text-shadow:none}#right-controls{display:flex;gap:6px}#right-controls button{font-family:var(--mono);font-size:12px;letter-spacing:1px;padding:6px 12px;background:transparent;color:var(--amber);border:1px solid rgba(255,210,77,.35);cursor:pointer}#right-controls button:hover{border-color:var(--amber);box-shadow:0 0 10px #ffd24d66}#panel{position:fixed;top:56px;right:12px;width:280px;z-index:30;background:var(--panel-bg);border:1px solid rgba(77,243,255,.3);box-shadow:0 0 24px #4df3ff1f;padding:12px 14px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:transform .25s,opacity .25s}#panel.hidden{transform:translate(320px);opacity:0;pointer-events:none}#panel-title{font-size:11px;letter-spacing:3px;color:var(--neon2);margin-bottom:10px}#panel-hint{margin-top:10px;font-size:10px;color:#a0dcff66;letter-spacing:1px}.param-row{margin-bottom:10px}.param-label{display:flex;justify-content:space-between;font-size:11px;letter-spacing:1px;color:#c8f0ffd9;margin-bottom:3px}.param-label .val{color:var(--amber)}input[type=range]{-webkit-appearance:none;width:100%;height:4px;background:linear-gradient(to right,var(--neon),var(--neon2));outline:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:16px;background:#fff;border:1px solid var(--neon);box-shadow:0 0 8px var(--neon);cursor:pointer}body.director #topbar,body.director #panel,body.director #fps,body.director #crt{display:none}#fps{position:fixed;bottom:10px;right:14px;z-index:30;font-size:10px;letter-spacing:1px;color:#a0dcff80}#intro{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,#0a1020,#05060a 70%);transition:opacity .6s}#intro.gone{opacity:0;pointer-events:none}#intro-inner{text-align:center}#intro-pre{font-size:13px;letter-spacing:8px;color:var(--neon2);text-shadow:0 0 12px var(--neon2);margin-bottom:18px}#intro-title{font-size:clamp(38px,8vw,92px);font-weight:700;letter-spacing:10px;color:#fff;text-shadow:0 0 10px var(--neon),0 0 40px var(--neon),0 0 90px var(--neon);margin-bottom:14px;animation:titlepulse 2.2s ease-in-out infinite}@keyframes titlepulse{0%,to{text-shadow:0 0 10px var(--neon),0 0 40px var(--neon),0 0 90px var(--neon)}50%{text-shadow:0 0 14px var(--neon2),0 0 55px var(--neon2),0 0 110px var(--neon2)}}#intro-sub{font-size:12px;letter-spacing:4px;color:#a0dcffb3;margin-bottom:42px}#boot{font-family:var(--mono);font-size:18px;letter-spacing:4px;padding:14px 38px;background:transparent;color:var(--amber);border:2px solid var(--amber);cursor:pointer;box-shadow:0 0 20px #ffd24d4d,inset 0 0 20px #ffd24d14;transition:all .2s}#boot:hover{background:var(--amber);color:#100800;box-shadow:0 0 40px #ffd24dcc}#intro-tip{margin-top:22px;font-size:11px;letter-spacing:2px;color:#a0dcff59}