:root{--background:#fff;--foreground:#1d1d1f;--accent:#0071e3;--secondary:#f5f5f7;--muted:#86868b;--border:#d2d2d7;--radius:12px;--glass:#ffffffb8;--font-apple:-apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif}[data-theme=dark]{--background:#000;--foreground:#f5f5f7;--accent:#2997ff;--secondary:#1d1d1f;--muted:#86868b;--border:#424245;--glass:#000000b8}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--background);color:var(--foreground);font-family:var(--font-apple);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}a{color:inherit;text-decoration:none}h1,h2,h3,h4{letter-spacing:-.022em;font-weight:600}.hero-title{letter-spacing:-.005em;font-size:56px;font-weight:600;line-height:1.07}@media (max-width:768px){.hero-title{font-size:40px}}.glass-nav{background:var(--glass);-webkit-backdrop-filter:saturate(180%)blur(20px);z-index:1000;border-bottom:.5px solid var(--border);justify-content:center;align-items:center;width:100%;height:44px;display:flex;position:fixed;top:0}.nav-content{width:100%;max-width:1024px;color:var(--foreground);opacity:.8;justify-content:space-between;padding:0 22px;font-size:12px;font-weight:400;display:flex}.nav-link:hover{opacity:1}.section{text-align:center;flex-direction:column;align-items:center;padding:80px 20px;display:flex}.container{max-width:980px;margin:0 auto}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:980px;padding:12px 24px;font-size:17px;font-weight:400;transition:all .3s cubic-bezier(.4,0,.2,1)}.btn-primary:hover{background:#0077ed;transform:scale(1.02)}.btn-secondary{color:var(--accent);cursor:pointer;background:0 0;border:none;align-items:center;gap:4px;font-size:17px;font-weight:400;display:inline-flex}.btn-secondary:hover{text-decoration:underline}.card{background:var(--secondary);border-radius:var(--radius);text-align:left;padding:30px;transition:transform .3s}.card:hover{transform:translateY(-5px)}