:root{--background:#f4f5f7;--foreground:#101114;--muted:#666b73;--surface:#fff;--border:#e2e4e8;--accent:#101114}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--background);color:var(--foreground);margin:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}.shell{place-items:center;min-height:100vh;padding:32px;display:grid}.card{background:var(--surface);border:1px solid var(--border);border-radius:28px;width:min(820px,100%);padding:clamp(32px,7vw,72px);box-shadow:0 24px 70px #10111414}.eyebrow{letter-spacing:.18em;margin:0 0 14px;font-size:12px;font-weight:800}h1{letter-spacing:-.06em;max-width:900px;margin:0;font-size:clamp(44px,8vw,88px);line-height:.96}h2{letter-spacing:-.045em;max-width:760px;margin:0;font-size:clamp(32px,5vw,58px);line-height:1}h3{margin-top:0}.lead{max-width:720px;color:var(--muted);margin:26px 0 32px;font-size:clamp(18px,2.2vw,22px);line-height:1.55}.button{background:var(--accent);color:#fff;border-radius:999px;justify-content:center;align-items:center;min-height:48px;padding:0 20px;font-weight:700;display:inline-flex}.demoNav{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:20px;padding:20px clamp(24px,5vw,72px);display:flex}.brand{letter-spacing:.16em;font-size:14px;font-weight:900}.previewBadge{color:var(--muted);font-size:13px}.hero{background:var(--surface);align-items:center;min-height:72vh;padding:72px clamp(24px,7vw,110px);display:flex}.section{padding:96px clamp(24px,7vw,110px)}.grid{grid-template-columns:repeat(3,1fr);gap:18px;margin-top:48px;display:grid}.feature{background:var(--surface);border:1px solid var(--border);border-radius:22px;min-height:190px;padding:28px}.feature p{color:var(--muted);line-height:1.55}@media (max-width:760px){.grid{grid-template-columns:1fr}.previewBadge{display:none}}