:root{--brand:#0f172a;--brand-light:#1e293b;--brand-dark:#0b1220;--accent:#14b8a6;--accent-alt:#0ea5e9;--text:#0f172a;--text-secondary:#475569;--text-tertiary:#94a3b8;--surface:#fff;--surface-alt:#f8fafc;--border:#e2e8f0;--success:#10b981}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--surface);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.container{max-width:1180px;margin:0 auto;padding:0 24px}.nav{position:-webkit-sticky;position:sticky;top:0;z-index:50;background:hsla(0,0%,100%,.9);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;gap:24px;height:64px}.nav-logo{font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--brand)}.nav-logo 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