* { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: #0a0e1a; color: #e0e7ff; line-height: 1.7; min-height: 100vh; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

        /* neon glow */
        .glow-card { background: rgba(59, 130, 246, 0.05); border: 1px solid rgba(59, 130, 246, 0.3); border-radius: 24px; padding: 32px; backdrop-filter: blur(6px); box-shadow: 0 0 20px rgba(59, 130, 246, 0.15); transition: 0.3s; }
        .glow-card:hover { border-color: #3b82f6; box-shadow: 0 0 40px rgba(59, 130, 246, 0.3); }

        /* nav */
        nav { background: rgba(10, 14, 26, 0.9); backdrop-filter: blur(12px); border-bottom: 1px solid #3b82f6; padding: 16px 0; position: sticky; top: 0; z-index: 100; }
        .nav-container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
        .logo { font-size: 1.5rem; font-weight: 800; color: #3b82f6; letter-spacing: 1px; text-shadow: 0 0 12px rgba(59,130,246,0.6); }
        .nav-links { display: flex; gap: 24px; flex-wrap: wrap; }
        .nav-links a { color: #b0c4ff; text-decoration: none; font-weight: 500; font-size: 1rem; transition: 0.2s; position: relative; }
        .nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: #3b82f6; transition: 0.3s; }
        .nav-links a:hover { color: white; }
        .nav-links a:hover::after { width: 100%; }

        h1 { font-size: 2.8rem; margin: 40px 0 16px; background: linear-gradient(135deg, #3b82f6, #a5b4fc); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 800; text-align: center; }
        h2 { font-size: 2rem; color: #3b82f6; margin-bottom: 24px; border-left: 4px solid #3b82f6; padding-left: 16px; }
        h3 { font-size: 1.4rem; color: #c7d2fe; margin-bottom: 12px; }
        .section { margin: 72px 0; }
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
        img { max-width: 100%; border-radius: 16px; border: 1px solid rgba(59,130,246,0.2); display: block; }
        .btn { display: inline-block; background: #3b82f6; color: #0a0e1a; font-weight: 700; padding: 12px 32px; border-radius: 40px; text-decoration: none; transition: 0.3s; box-shadow: 0 0 16px rgba(59,130,246,0.4); }
        .btn:hover { background: #2563eb; transform: scale(1.02); box-shadow: 0 0 32px rgba(59,130,246,0.6); }

        /* footer */
        footer { background: #0d1225; border-top: 1px solid #1e2a47; padding: 48px 0 24px; margin-top: 80px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
        .footer-links a { color: #8b9dc3; text-decoration: none; display: block; margin: 4px 0; }
        .footer-links a:hover { color: #3b82f6; }
        .footer-bottom { border-top: 1px solid #1e2a47; padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; font-size: 0.9rem; color: #6b7fa3; }
        .friend-links a { color: #3b82f6; margin: 0 4px; text-decoration: underline; font-size: 0.9rem; }

        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            .grid-2, .grid-3 { grid-template-columns: 1fr; }
            .nav-links { gap: 12px; }
            .footer-grid { grid-template-columns: 1fr; }
        }