:root{--ink:#07111f;--muted:#667085;--surface:#f7f8fc;--card:#fff;--line:#e8ebf2;--accent:#2563eb;--accent2:#7c3aed;--green:#16a34a;--red:#dc2626;--shadow:0 20px 60px rgba(15,23,42,.10)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--surface);-webkit-font-smoothing:antialiased}
body.public{display:grid;place-items:center;padding:20px;background:radial-gradient(circle at 85% 5%,rgba(124,58,237,.11),transparent 30%),radial-gradient(circle at 5% 95%,rgba(37,99,235,.10),transparent 32%),var(--surface)}
.shell{width:min(100%,520px);min-height:calc(100vh - 40px);display:flex;align-items:center}.card{width:100%;background:rgba(255,255,255,.91);border:1px solid rgba(255,255,255,.85);box-shadow:var(--shadow);border-radius:32px;padding:clamp(28px,6vw,46px);backdrop-filter:blur(18px)}
.brand-pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:750;font-size:12px;letter-spacing:.04em;text-transform:uppercase;background:white}.brand-dot{width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2))}
h1{font-size:clamp(38px,9vw,58px);line-height:.98;letter-spacing:-.055em;margin:28px 0 12px;font-weight:850}h2{font-size:clamp(28px,7vw,40px);line-height:1.03;letter-spacing:-.04em;margin:24px 0 12px}p{font-size:18px;line-height:1.55;color:var(--muted);margin:10px 0}.lead{font-size:clamp(20px,5vw,26px);font-weight:720;line-height:1.25;color:var(--ink);letter-spacing:-.025em}.micro{font-size:13px;color:#8a94a6;line-height:1.45}.center{text-align:center}.hidden{display:none!important}
.btn{display:flex;width:100%;align-items:center;justify-content:center;text-align:center;border:0;border-radius:18px;padding:18px 22px;font-size:17px;font-weight:820;letter-spacing:-.01em;cursor:pointer;text-decoration:none;transition:.18s ease;min-height:58px}.btn:hover{transform:translateY(-1px)}.btn:active{transform:scale(.99)}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 12px 30px rgba(37,99,235,.22)}.btn-dark{color:#fff;background:var(--ink)}.btn-ghost{color:var(--ink);background:#fff;border:1px solid var(--line)}.btn-soft{color:#334155;background:#f0f3f9}.btn-success{color:#fff;background:#15803d}.stack{display:grid;gap:12px;margin-top:24px}.divider{height:1px;background:var(--line);margin:26px 0}.link{border:0;background:none;color:var(--muted);font-weight:700;text-decoration:underline;cursor:pointer}.step{animation:stepin .32s ease both}@keyframes stepin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.install-guide{background:#f4f6fb;border:1px solid var(--line);border-radius:18px;padding:18px;margin-top:14px;text-align:left}.install-row{display:flex;gap:12px;align-items:flex-start;margin:10px 0}.num{flex:0 0 28px;height:28px;border-radius:9px;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px}.checklist{display:grid;gap:10px;margin:18px 0}.check{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:15px;padding:14px;font-weight:650}.check i{font-style:normal;color:var(--green)}
.emergency{border:1px solid #fecaca;background:#fff7f7;border-radius:20px;padding:18px}.emergency .btn-primary{background:linear-gradient(135deg,#ef4444,#dc2626)}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--ink);color:#fff;border-radius:999px;padding:12px 18px;font-size:14px;font-weight:700;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.2s;z-index:99}.toast.show{opacity:1}
.legal{margin-top:24px;font-size:11px;line-height:1.5;color:#98a2b3}
@media(max-width:560px){body.public{padding:0}.shell{min-height:100vh}.card{min-height:100vh;border-radius:0;border:0;box-shadow:none;padding:28px 22px 34px;display:flex;flex-direction:column;justify-content:center}.brand-pill{align-self:flex-start}}