:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#eef4fa;background:#11161e}audio[hidden]{display:none}
*{box-sizing:border-box}body{margin:0}main{max-width:840px;margin:0 auto;padding:40px 28px 60px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:64px}header a{font-size:24px;font-weight:900;letter-spacing:-1px;text-decoration:none;color:#fff}header span,.eyebrow{font-size:12px;letter-spacing:2px;color:#a0f080}.eyebrow{margin-bottom:12px}h1{font-size:clamp(32px,6vw,52px);line-height:1.08;letter-spacing:-1.8px;margin:0 0 20px}.intro{max-width:610px;color:#b6c3d2;line-height:1.7}.player{margin:28px 0;background:#1b2430;border:1px solid #2c3b4b;border-radius:20px;padding:28px}.song{font-size:22px;font-weight:650;margin:0 0 24px;overflow-wrap:anywhere}.buttons{display:flex;flex-wrap:wrap;gap:10px}button{background:#2a3747;color:#fff;border:1px solid #455467;border-radius:10px;padding:13px 18px;font:inherit;font-weight:650;cursor:pointer}.primary{background:#a0f080;color:#102019;border-color:#a0f080}button:hover{filter:brightness(1.1)}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #a0f080;outline-offset:4px}#play-state{font-size:14px;color:#c6d4e5;min-height:24px;margin:20px 0 12px}audio{display:block;width:100%;height:44px}.rewind{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:24px;font-size:14px}.rewind label{grid-column:1/-1;display:flex;justify-content:space-between}.rewind input{width:100%;accent-color:#a0f080}.rewind button{font-size:12px;padding:9px 12px}.checks{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.checks div{padding:18px;border:1px solid #2c3b4b;border-radius:12px}.checks span{display:block;color:#94a8be;font-size:12px;margin-bottom:10px}.checks strong{font-size:15px}.note,details{font-size:14px;line-height:1.65;color:#b6c3d2}.note{min-height:24px;margin-top:22px}details{border-top:1px solid #2c3b4b;padding-top:20px;margin-top:25px}summary{cursor:pointer}a{color:#a0f080}@media(max-width:580px){main{padding:28px 18px}header{margin-bottom:45px}.player{padding:20px}.checks{grid-template-columns:1fr}.checks div{display:flex;justify-content:space-between;gap:12px;padding:14px}.checks span{margin-bottom:0}.buttons button{flex-grow:1}.song{font-size:19px}}