:root{color-scheme:light dark;--bg:#f5f7fa;--surface:#fff;--ink:#152238;--muted:#52637a;--line:#dce3ec;--accent:#185abd;--link:#185abd}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--link);text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:3px solid #4597ff;outline-offset:5px}nav,main,footer{max-width:1120px;margin:auto;padding:24px}nav{display:flex;justify-content:space-between;gap:20px}nav a{text-decoration:none}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:center;padding:56px 0 76px}.eyebrow{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);font-weight:650}h1{font-size:clamp(38px,5vw,64px);line-height:1.07;letter-spacing:-.04em;margin:14px 0 24px}h2{font-size:28px;line-height:1.2;letter-spacing:-.02em}h3{font-size:19px}p{max-width:65ch}.lead{font-size:20px;color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:12px 23px;background:var(--accent);color:#fff;text-decoration:none;border-radius:12px;font-weight:600;margin:12px 8px 8px 0}.quiet{color:var(--muted);font-size:14px}.phone{max-width:340px;margin:auto;padding:26px 20px 22px;border:1px solid var(--line);border-radius:32px;background:var(--surface);box-shadow:0 24px 70px #12243f18;transform:rotate(2deg)}.phone h2{font-size:20px;margin:0 0 24px}.display{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:18px 22px;text-align:right;font-size:44px;margin-bottom:14px}.keys{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.keys span{display:grid;place-items:center;height:52px;border:1px solid var(--line);border-radius:9px;background:var(--bg)}.keys .equals{grid-column:span 2;background:var(--accent);color:#fff}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:20px 0 64px}.features article{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:18px}.section{padding:40px 0;border-top:1px solid var(--line)}.steps{padding-left:24px}.steps li{padding:8px 0}details{padding:18px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:600;min-height:32px}footer{padding-top:36px;padding-bottom:44px;color:var(--muted);font-size:14px}footer a{margin-right:20px}.policy{max-width:780px}.policy h1{font-size:44px}.policy h2{margin-top:36px}.checksum{overflow-wrap:anywhere}@media(prefers-color-scheme:dark){:root{--bg:#101720;--surface:#1b2735;--ink:#edf3fb;--muted:#adbed1;--line:#35465b;--accent:#236bd4;--link:#91bfff}.phone{box-shadow:0 24px 70px #0005}}@media(max-width:720px){.hero{grid-template-columns:1fr;gap:36px;padding:24px 0 50px}.features{grid-template-columns:1fr;gap:14px}.phone{width:100%;transform:none}.hero h1{max-width:10ch}nav,main,footer{padding-left:20px;padding-right:20px}}