:root{--bg: #0b1020;--bg-soft: #121a33;--panel: #161f3d;--line: #243156;--text: #eaeefb;--muted: #9aa7cc;--accent: #d9b15e;--accent-soft: #f0d99a;--ok: #58d39a;--ko: #f1767d;--radius: 16px;--maxw: 1080px;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 600px at 80% -10%,rgba(217,177,94,.12),transparent 60%),radial-gradient(900px 500px at -10% 10%,rgba(88,120,255,.14),transparent 55%),var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}.page{max-width:var(--maxw);margin:0 auto;padding:0 24px}.nav{display:flex;align-items:center;gap:16px;padding:28px 0;border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:3px;font-size:20px}.nav-tag{color:var(--muted);font-size:13px;letter-spacing:1px;text-transform:uppercase}.hero{padding:96px 0 48px}.eyebrow{color:var(--accent);font-size:13px;letter-spacing:2px;text-transform:uppercase;margin:0 0 18px}.hero h1{font-size:clamp(34px,6vw,62px);line-height:1.05;margin:0 0 22px;font-weight:800;letter-spacing:-.02em}.accent{color:var(--accent-soft)}.lede{color:var(--muted);font-size:clamp(16px,2.2vw,20px);max-width:720px;margin:0 0 40px}.hero-numbers{display:flex;flex-wrap:wrap;gap:40px}.stat{display:flex;flex-direction:column}.stat strong{font-size:28px;color:var(--accent-soft)}.stat span{color:var(--muted);font-size:13px}.section-head{margin:0 0 32px}.section-head h2{font-size:clamp(26px,4vw,38px);margin:0 0 10px;letter-spacing:-.01em}.section-head p{color:var(--muted);max-width:640px;margin:0}.demo-section{padding:72px 0;border-top:1px solid var(--line);margin-top:40px}.demo{display:grid;grid-template-columns:264px 1fr;gap:32px;align-items:start;background:linear-gradient(180deg,var(--panel),var(--bg-soft));border:1px solid var(--line);border-radius:var(--radius);padding:28px}.demo-qr{background:#fff;border-radius:12px;padding:16px;display:grid;place-items:center;box-shadow:0 18px 40px #00000059}.demo-controls{display:flex;flex-direction:column;gap:14px}.demo-field{display:flex;flex-direction:column;gap:6px}.demo-field span{color:var(--muted);font-size:13px}.demo-field input{background:var(--bg);border:1px solid var(--line);color:var(--text);padding:10px 12px;border-radius:10px;font-size:14px}.demo-id{color:var(--muted);font-size:13px;margin:0}.demo-id code{color:var(--accent-soft);font-size:12px;word-break:break-all}.demo-actions{display:flex;flex-wrap:wrap;gap:10px}.btn{border:1px solid var(--line);background:var(--bg-soft);color:var(--text);padding:10px 16px;border-radius:10px;font-size:14px;cursor:pointer;transition:transform .06s ease,border-color .2s ease,background .2s ease}.btn:hover{border-color:var(--accent);transform:translateY(-1px)}.btn-primary{background:var(--accent);color:#1a1300;border-color:var(--accent);font-weight:600}.btn-primary:hover{background:var(--accent-soft)}.btn-ghost{background:transparent;color:var(--muted)}.demo-result{margin:4px 0 0;font-weight:600}.demo-result.ok{color:var(--ok)}.demo-result.ko{color:var(--ko)}.demo-note{color:var(--muted);font-size:13px;margin:4px 0 0}.features{padding:72px 0;border-top:1px solid var(--line)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:border-color .2s ease,transform .12s ease}.card:hover{border-color:var(--accent);transform:translateY(-2px)}.card h3{margin:0 0 10px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:15px}.footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:40px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.footer span:first-child{letter-spacing:2px;font-weight:700;color:var(--text)}@media (max-width: 720px){.demo{grid-template-columns:1fr}.demo-qr{justify-self:center}}