:root {
    --bg: #0a0a0a;
    --bg-alt: #111113;
    --card: #18181b;
    --border: #27272a;
    --text: #e4e4e7;
    --muted: #a1a1aa;
    --white: #fafafa;
    --indigo: #6366f1;
    --violet: #8b5cf6;
    --accent: #818cf8;
    --radius: 16px;
    --maxw: 1100px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 720px; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: blur(10px);
    background: rgba(10, 10, 10, .8);
    border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.logo {
    display: grid; place-items: center; width: 36px; height: 36px;
    border-radius: 12px; font-weight: 700; font-size: 14px; color: #fff;
    background: linear-gradient(135deg, var(--indigo), var(--violet));
    box-shadow: 0 2px 8px rgba(99, 102, 241, .3);
}
.logo.small { width: 30px; height: 30px; font-size: 12px; border-radius: 9px; }
.wordmark { font-size: 18px; color: var(--white); letter-spacing: -.01em; }
.accent { color: var(--accent); }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--accent); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 110px 0 80px; text-align: center; }
.hero::before {
    content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, .18), transparent 60%);
    filter: blur(40px); z-index: -1;
}
.badge {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px;
    border: 1px solid var(--border); border-radius: 999px; background: var(--card);
    font-size: 12px; font-weight: 500; color: var(--muted);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: #10b981; }
.hero h1 {
    margin-top: 28px; font-size: clamp(40px, 7vw, 68px); font-weight: 700;
    line-height: 1.05; letter-spacing: -.03em; color: var(--white);
}
.grad {
    background: linear-gradient(90deg, var(--indigo), var(--violet));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { max-width: 600px; margin: 24px auto 0; font-size: 18px; color: var(--muted); }
.cta { display: flex; gap: 12px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }
.btn { padding: 12px 24px; border-radius: 12px; font-size: 14px; font-weight: 600; transition: all .2s; border: 1px solid transparent; }
.btn-primary { background: var(--indigo); color: #fff; box-shadow: 0 8px 20px rgba(99, 102, 241, .25); }
.btn-primary:hover { background: #4f46e5; }
.btn-ghost { border-color: var(--border); color: var(--white); background: var(--card); }
.btn-ghost:hover { background: #1f1f23; }

/* Sections */
.section { padding: 80px 0; }
.section.alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.eyebrow { font-size: 14px; font-weight: 600; color: var(--accent); }
.center { text-align: center; }
.section-title { margin-top: 8px; font-size: clamp(28px, 4vw, 38px); font-weight: 700; letter-spacing: -.02em; color: var(--white); }
.prose { margin-top: 20px; font-size: 17px; color: var(--muted); }

/* Capabilities grid */
.grid { margin-top: 48px; display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.card {
    padding: 24px; border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--card); transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-3px); border-color: #3f3f46; }
.card h4 { font-size: 16px; color: var(--white); margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--muted); }

/* App card */
.app-card {
    margin-top: 40px; display: flex; gap: 24px; padding: 28px;
    border: 1px solid var(--border); border-radius: 20px;
    background: linear-gradient(135deg, rgba(99, 102, 241, .08), rgba(139, 92, 246, .04));
    align-items: flex-start;
}
.app-logo {
    flex-shrink: 0; display: grid; place-items: center; width: 56px; height: 56px;
    border-radius: 14px; font-weight: 700; color: #fff;
    background: linear-gradient(135deg, #0ea5e9, var(--violet));
}
.app-head { display: flex; align-items: center; gap: 12px; }
.app-head h4 { font-size: 20px; color: var(--white); }
.pill { font-size: 11px; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: rgba(129, 140, 248, .15); color: var(--accent); }
.app-body p { margin-top: 10px; color: var(--muted); font-size: 15px; }
.link { display: inline-block; margin-top: 14px; color: var(--accent); font-weight: 600; font-size: 14px; }
.link:hover { text-decoration: underline; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-meta { display: flex; align-items: center; gap: 20px; font-size: 13px; color: var(--muted); flex-wrap: wrap; }
.footer-meta a:hover { color: var(--accent); }

@media (max-width: 640px) {
    .nav-links { display: none; }
    .hero { padding: 70px 0 60px; }
    .app-card { flex-direction: column; }
}