:root{color-scheme:dark;background:#020504;font-family:Courier New,Courier,monospace}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:radial-gradient(circle at 50% 42%,rgba(26,94,54,.12),transparent 48%),linear-gradient(180deg,#030807,#010202)}#terminal-shell{position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;background:#020504}#demo-canvas{display:block;width:100vw;height:100vh;image-rendering:auto;filter:contrast(1.08) saturate(1.08)}.crt-glass{pointer-events:none;position:fixed;top:0;right:0;bottom:0;left:0;background:repeating-linear-gradient(0deg,#deffdc0b 0,#deffdc0b 1px,#00000024 2px,#00000024 4px),radial-gradient(circle at 50% 50%,transparent 58%,rgba(0,0,0,.38) 100%);mix-blend-mode:screen;opacity:.58}.audio-start{position:fixed;top:0;right:0;bottom:0;left:0;z-index:4;display:grid;place-items:center;cursor:pointer;background:#010504eb;transition:opacity .42s ease}.audio-start--hidden{pointer-events:none;opacity:0}.audio-start__panel{width:min(760px,calc(100vw - 48px));padding:54px 40px;border:1px solid rgba(124,255,154,.72);color:#7cff9a;text-align:center;box-shadow:0 0 22px #7cff9a2e,inset 0 0 36px #7cff9a0f;animation:start-pulse 1.8s infinite steps(2,end)}.audio-start__panel p,.audio-start__panel span{margin:0;color:#2ea761;font-size:14px;letter-spacing:.12em}.audio-start__panel h1{margin:30px 0;font-size:clamp(22px,4vw,38px);font-weight:400;letter-spacing:.06em;text-shadow:0 0 12px rgba(124,255,154,.72)}@keyframes start-pulse{0%,to{opacity:.82}50%{opacity:1}}.crt-glass:before{content:"";position:absolute;top:-4%;right:-4%;bottom:-4%;left:-4%;background:linear-gradient(90deg,#ff141406,#00ff5006,#2850ff06),radial-gradient(circle at 50% 50%,rgba(170,255,185,.1),transparent 62%);animation:crt-flicker 4.7s infinite steps(1,end)}@keyframes crt-flicker{0%,to{opacity:.72;transform:translateY(0)}37%{opacity:.64;transform:translateY(.4px)}72%{opacity:.78;transform:translateY(-.3px)}}