*{margin:0;padding:0;box-sizing:border-box}
:root{
    --bg:#0a0a0a;
    --text:#f5f5f5;
    --text-muted:#a0a0a0;
    --green:#22c55e;
    --green-dim:rgba(34,197,94,.12);
    --red:#ef4444;
    --yellow:#f59e0b;
    --blue:#3b82f6;
    --surface:#141414;
    --surface-2:#1a1a1a;
    --border:#252525;
    --border-hover:#3a3a3a;
    --max-width:1080px;
    --radius:10px;
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Inter',sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
a{color:var(--blue);text-decoration:none;transition:color .15s}
a:hover{color:#60a5fa}

/* Navbar */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(10,10,10,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 24px}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:56px}
.nav-logo{font-weight:800;font-size:1.15rem;background:linear-gradient(135deg,var(--green),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--text-muted);font-size:.9rem;font-weight:500;transition:color .15s}
.nav-links a:hover{color:var(--text);text-decoration:none}
.nav-cta{background:var(--green)!important;color:#fff!important;padding:6px 16px;border-radius:6px;font-weight:600!important}
.nav-cta:hover{opacity:.9}

/* Hero */
.hero{padding:140px 0 100px;text-align:center}
.hero-badge{display:inline-block;padding:6px 16px;border-radius:20px;font-size:.8rem;font-weight:600;color:var(--green);background:var(--green-dim);border:1px solid rgba(34,197,94,.2);margin-bottom:24px;letter-spacing:.02em}
.hero h1{font-size:3.8rem;font-weight:800;line-height:1.1;letter-spacing:-.03em;background:linear-gradient(135deg,var(--text) 0%,var(--text-muted) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.subtitle{color:var(--text-muted);max-width:620px;margin:20px auto 0;font-size:1.1rem;line-height:1.7}
.subtitle-note{color:var(--text-muted);max-width:580px;margin:12px auto 36px;font-size:.95rem;opacity:.7}
.cta-buttons{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{padding:12px 28px;border-radius:8px;font-weight:600;font-size:.95rem;text-decoration:none!important;transition:all .2s;display:inline-block}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:#16a34a;color:#fff}
.btn-secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--border-hover);background:#222}
.btn-large{padding:14px 36px;font-size:1.05rem}

/* Sections */
section{padding:100px 0}
section h2{font-size:2.2rem;font-weight:700;margin-bottom:12px;letter-spacing:-.02em}
.section-subtitle{color:var(--text-muted);margin-bottom:48px;font-size:1.05rem}

/* How It Works */
.how-it-works{border-top:1px solid var(--border)}
.how-it-works h2,.features h2,.security h2,.privacy h2,.open-source h2,.verify-cta h2{text-align:center}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:border-color .2s}
.step:hover{border-color:var(--border-hover)}
.step-number{width:32px;height:32px;border-radius:50%;background:var(--green-dim);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;margin-bottom:16px}
.step h3{margin-bottom:8px;font-size:1.05rem;font-weight:600}
.step p{color:var(--text-muted);font-size:.9rem;line-height:1.6}

/* Features */
.features{border-top:1px solid var(--border)}
.feature-block{margin-top:48px;padding:36px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.feature-block:first-of-type{margin-top:36px}
.feature-content h3{font-size:1.3rem;font-weight:700;margin-bottom:12px;color:var(--green)}
.feature-content p{color:var(--text-muted);margin-bottom:12px;font-size:.95rem}
.feature-content p:last-child{margin-bottom:0}
.feature-content strong{color:var(--text)}
.sensor-grid{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.sensor-chip{padding:6px 14px;border-radius:20px;font-size:.8rem;font-weight:500;background:var(--green-dim);color:var(--green);border:1px solid rgba(34,197,94,.15)}
.checks-visual{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:20px}
.check-visual-item{padding:10px 12px;border-radius:8px;font-size:.82rem;font-weight:600;text-align:center}
.check-visual-item.pass{background:var(--green-dim);color:var(--green)}

/* Verify CTA */
.verify-cta{text-align:center;background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.verify-cta p{color:var(--text-muted);max-width:600px;margin:0 auto 28px;font-size:.95rem}

/* Security */
.security{border-top:1px solid var(--border)}
.security-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:36px 0 24px}
.security-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.security-card h4{font-size:1rem;margin-bottom:8px;font-weight:600}
.security-card p{color:var(--text-muted);font-size:.9rem}
.security-card strong{color:var(--green)}
.security-disclaimer{text-align:center;padding:16px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);font-size:.85rem;color:var(--yellow);max-width:700px;margin:0 auto}

/* Privacy */
.privacy{border-top:1px solid var(--border);text-align:center}
.privacy-items{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-top:32px}
.privacy-item{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 20px}
.privacy-icon{font-weight:700;font-size:.8rem;padding:4px 10px;border-radius:4px}
.privacy-icon.off{background:rgba(239,68,68,.15);color:var(--red)}
.privacy-item span:last-child{color:var(--text-muted);font-size:.9rem}

/* Open Source */
.open-source{text-align:center;border-top:1px solid var(--border)}
.open-source p{color:var(--text-muted);margin-bottom:12px;max-width:600px;margin-left:auto;margin-right:auto}
.open-source .btn{margin-top:16px}

/* Footer */
footer{border-top:1px solid var(--border);padding:60px 0 40px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand{max-width:260px}
.footer-logo{font-weight:800;font-size:1.2rem;background:linear-gradient(135deg,var(--green),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent;display:block;margin-bottom:8px}
.footer-brand p{color:var(--text-muted);font-size:.85rem}
.footer-links-group h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:12px}
.footer-links-group a{display:block;color:var(--text-muted);font-size:.9rem;margin-bottom:8px;transition:color .15s}
.footer-links-group a:hover{color:var(--text);text-decoration:none}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;justify-content:space-between;align-items:center}
.footer-bottom p{color:var(--text-muted);font-size:.8rem}
.footer-bottom a{color:var(--text-muted)}
.footer-bottom a:hover{color:var(--text)}

/* Verify page header */
.verify-header{padding:16px 0;border-bottom:1px solid var(--border)}
.verify-header .container{display:flex;align-items:center;gap:16px}
.verify-header .logo{font-weight:800;font-size:1.2rem;background:linear-gradient(135deg,var(--green),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.verify-header .page-title{color:var(--text-muted)}

/* Responsive */
@media(max-width:768px){
    .hero{padding:100px 0 60px}
    .hero h1{font-size:2.4rem}
    .subtitle{font-size:1rem}
    .steps{grid-template-columns:1fr}
    .security-grid{grid-template-columns:1fr}
    .checks-visual{grid-template-columns:repeat(2,1fr)}
    .footer-top{grid-template-columns:1fr 1fr;gap:24px}
    .footer-bottom{flex-direction:column;gap:8px;text-align:center}
    .nav-links a:not(.nav-cta){display:none}
    .privacy-items{flex-direction:column;align-items:center}
}
@media(max-width:480px){
    .hero h1{font-size:2rem}
    .cta-buttons{flex-direction:column;align-items:center}
    .sensor-grid{justify-content:center}
    .checks-visual{grid-template-columns:1fr}
    .footer-top{grid-template-columns:1fr}
}