*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,sans-serif;color:#1a1a2e;line-height:1.6;background:#fff}
a{text-decoration:none;color:inherit}
code{font-family:'SF Mono',SFMono-Regular,Consolas,'Liberation Mono',Menlo,monospace}

header{position:fixed;top:0;width:100%;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid #eee;z-index:100}
nav{max-width:1140px;margin:0 auto;padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.4rem;font-weight:700;color:#2d5be3}
.logo-tag{font-size:.75rem;font-weight:500;color:#888;vertical-align:middle;margin-left:.25rem;padding:2px 8px;border:1px solid #ddd;border-radius:4px}
.nav-links{display:flex;align-items:center;gap:2rem;font-size:.95rem}
.nav-links a{color:#555;transition:color .2s}
.nav-links a:hover{color:#2d5be3}
.btn-nav{background:#2d5be3;color:#fff!important;padding:.5rem 1.2rem;border-radius:6px}
.btn-nav:hover{background:#1d4ac7}

.hero{max-width:780px;margin:0 auto;text-align:center;padding:10rem 2rem 5rem}
.hero-badge{display:inline-block;background:#eef2ff;color:#2d5be3;font-size:.85rem;font-weight:600;padding:.35rem 1rem;border-radius:20px;margin-bottom:1.5rem}
.hero h1{font-size:2.6rem;line-height:1.2;margin-bottom:1.2rem;color:#1a1a2e}
.hero p{font-size:1.1rem;color:#555;margin-bottom:2rem;max-width:600px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:1rem;justify-content:center}
.btn-primary{background:#2d5be3;color:#fff;padding:.75rem 2rem;border-radius:8px;font-weight:600;transition:background .2s;display:inline-block}
.btn-primary:hover{background:#1d4ac7}
.btn-secondary{border:1px solid #ddd;padding:.75rem 2rem;border-radius:8px;color:#555;transition:all .2s}
.btn-secondary:hover{border-color:#2d5be3;color:#2d5be3}

.features{max-width:1140px;margin:0 auto;padding:5rem 2rem}
.features h2{text-align:center;font-size:2rem;margin-bottom:3rem}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.feature-card{padding:2rem;border:1px solid #eee;border-radius:12px;transition:box-shadow .2s}
.feature-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.06)}
.card-icon{display:inline-block;background:#eef2ff;color:#2d5be3;font-size:.8rem;font-weight:700;padding:.3rem .75rem;border-radius:6px;margin-bottom:.75rem;letter-spacing:.5px}
.feature-card h3{color:#1a1a2e;margin-bottom:.5rem;font-size:1.1rem}
.feature-card p{color:#666;font-size:.9rem}

footer{background:#1a1a2e;color:#aaa;padding:3rem 2rem 1.5rem}
.footer-content{max-width:1140px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;margin-bottom:2rem}
.footer-col h4{color:#fff;margin-bottom:1rem;font-size:.95rem}
.footer-col a{display:block;color:#888;font-size:.9rem;margin-bottom:.5rem;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{text-align:center;border-top:1px solid #333;padding-top:1.5rem;font-size:.85rem}

@media(max-width:768px){
    .feature-grid,.sdk-grid,.footer-content{grid-template-columns:1fr}
    .hero h1{font-size:2rem}
    .nav-links{display:none}
}