:root{color-scheme:dark;font-family:system-ui,sans-serif;color:#dce5f1;background:#080d17}*{box-sizing:border-box}body{margin:0;border-top:4px solid #ce304b}main{max-width:900px;margin:auto;padding:40px 24px}a{color:#79baff;text-underline-offset:4px}h1{font-size:clamp(2.3rem,7vw,4.5rem);line-height:1.04;letter-spacing:.035em;margin:20px 0}h1 span{color:#ee4b64;font-size:.68em}h2{font-size:1.15rem;color:#fafbff}p,li{line-height:1.6}li{padding:4px 0}.intro{max-width:650px;color:#aab9cc;font-size:1.1rem}.eyebrow{font-size:.78rem;letter-spacing:.12em;color:#7ca4ce}section{border:1px solid #25334b;border-radius:12px;padding:20px 24px;margin:22px 0;background:#0e1625}section.device{border-color:#426997}button{font:inherit;cursor:pointer;color:#e6effe;background:#20324b;border:1px solid #4b6588;border-radius:6px;padding:12px 18px}button.primary{background:#9e2540;border-color:#f05d78}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible{outline:3px solid #8abfff;outline-offset:4px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0}progress{width:100%;height:10px;accent-color:#e74665}pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:.75rem;max-height:300px;overflow:auto;background:#060b13;padding:12px}footer{font-size:.8rem;color:#8e9eb5;padding:28px 0}dialog{max-width:560px;color:#dce5f1;background:#111c2e;border:1px solid #6684ad;border-radius:12px;padding:26px}dialog::backdrop{background:#000b}@media(max-width:540px){main{padding:26px 16px}section{padding:16px}.actions{flex-direction:column}button{width:100%}}