:root{color-scheme:dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#090b16;color:#eff1ff}
*{box-sizing:border-box}html{min-height:100%}body{margin:0;min-height:100vh;background:radial-gradient(ellipse 85% 35% at 50% 0%,#202348 0%,transparent 80%),#090b16}
button,select,input{font:inherit}button{cursor:pointer}button:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #73dcff;outline-offset:3px}
.shell{max-width:680px;margin:0 auto;padding:30px 20px max(40px,env(safe-area-inset-bottom))}
header{padding:15px 4px 28px}header h1{margin:12px 0 6px;font-size:clamp(44px,13vw,70px);letter-spacing:-.065em;line-height:1}header h1 em{font-style:normal;color:#79e9ff}header p{margin:0;color:#b9bed7}
.kicker{font-size:11px;font-weight:800;letter-spacing:.2em;color:#8a94c7}
.card{border:1px solid #363a60;border-radius:24px;padding:24px;background:linear-gradient(145deg,rgba(29,33,65,.98),rgba(15,17,33,.99));box-shadow:0 25px 75px #0006}
h2{font-size:25px;letter-spacing:-.03em;margin:0 0 10px}.hint{font-size:14px;line-height:1.55;color:#aeb7d1}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}
label{font-size:13px;color:#e6e8fa;font-weight:600;display:block}select{width:100%;display:block;margin-top:9px;background:#12162e;border:1px solid #4c5276;border-radius:12px;padding:13px 12px;color:#f7f8ff;min-width:0}
.toggles{margin:8px 0 20px}.toggles label,.check{display:flex;align-items:center;gap:10px;min-height:38px;font-weight:500}.toggles input,.check input{width:18px;height:18px;accent-color:#77cfff;flex-shrink:0}
.notice{border-left:3px solid #8a94c7;background:#222744;border-radius:4px;padding:13px 15px;color:#cdd1e9;line-height:1.5;font-size:13px;margin:20px 0}
button{min-height:46px;padding:11px 18px;border-radius:14px;background:#25294a;border:1px solid #656b9d;color:#f5f7ff;font-weight:700}
button:hover{filter:brightness(1.1)}button.primary{background:#9be7ff;color:#14172e;border-color:transparent;width:100%;font-weight:900}button.stop{border-color:#a97a91;color:#ffd2e3}
.session-row{display:flex;justify-content:space-between;align-items:center;gap:12px}.session-row h2{margin-top:7px;font-size:20px}.session-row strong{font-variant-numeric:tabular-nums;font-size:20px;color:#9be7ff}
#scene{display:block;margin:18px auto 12px;width:100%;height:auto;aspect-ratio:1/1;border-radius:20px;border:1px solid #373966;background:#101428;max-height:min(55vh,550px)}
.audio-only{aspect-ratio:1/1;margin:18px 0 12px;display:grid;place-items:center;background:#101428;border:1px solid #373966;border-radius:20px;text-align:center;color:#aeb7d1;font-weight:700}
.track{height:7px;background:#2f3356;border-radius:10px;overflow:hidden}.track>div{height:100%;width:0;background:#7bdff8;transition:width .2s linear}
.controls{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.controls button{flex:1}
.rangeLabel{display:block;margin:24px 0}.rangeLabel strong{float:right;font-size:20px;color:#9be7ff}.rangeLabel input{display:block;width:100%;margin:20px 0;accent-color:#9be7ff}
footer{margin:26px 6px;color:#868cac;font-size:12px;line-height:1.5}.link{background:none;border:0;min-height:0;padding:0;text-decoration:underline;color:#a0bbff;font-size:12px}
.hidden{display:none!important}@media(max-width:490px){.form-grid{grid-template-columns:1fr}.card{padding:20px}.shell{padding-left:14px;padding-right:14px}.controls{gap:8px}.controls button{padding:10px 9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}