:root{color-scheme:dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:#030712;color:#f8fafc}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#0f172a,#020617 65%)}main{min-height:100vh;align-items:center;justify-content:center;padding:2rem;text-align:center}main,section{display:flex;flex-direction:column}section{gap:1rem;max-width:520px;margin-bottom:2rem}button{border:none;border-radius:999px;padding:.9rem 1.5rem;font-size:1rem;font-weight:600;background:linear-gradient(135deg,#f97316,#ec4899);color:#fff;cursor:pointer;transition:transform .12s ease,opacity .12s ease}button:disabled{opacity:.6;cursor:not-allowed}button:not(:disabled):hover{transform:translateY(-2px)}video{width:min(640px,90vw);border-radius:1rem;border:1px solid rgba(248,250,252,.2);box-shadow:0 25px 50px -12px rgba(15,23,42,.8)}h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:.5rem}p{max-width:540px;margin:0 auto;line-height:1.6;color:rgba(248,250,252,.85)}footer{margin-top:2rem;font-size:.85rem;color:rgba(248,250,252,.6)}