:root {
    --bg: #0a0e17;
    --bg-card: #111827;
    --bg-hover: #1a2332;
    --blue: #3b82f6;
    --blue-light: #60a5fa;
    --blue-dark: #2563eb;
    --blue-glow: rgba(59, 130, 246, 0.25);
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #1e293b;
    --success: #22c55e;
}

* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

        /* Background glow */
        body::before {
            content: '';
            position: fixed;
            top: -40%;
            left: 50%;
            transform: translateX(-50%);
            width: 900px;
            height: 900px;
            background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 10px;
            position: relative;
            z-index: 1;
        }

        /* Header */
        header {
            padding: 6px 0;
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(12px);
            background: rgba(10, 14, 23, 0.8);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text);
        }

        .logo-link img {
            height: 42px;
            width: auto;
            border-radius: 8px;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: -0.02em;
        }

        .logo-text span {
            color: var(--blue-light);
        }

        nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        nav a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 8px;
            transition: color 0.2s, background 0.2s;
        }

        nav a:hover {
            color: var(--text);
            background: var(--bg-hover);
        }

        /* Hero */
        .hero {
            text-align: center;
            padding: 80px 0 60px;
        }

        .hero-logo {
            width: 120px;
            height: 120px;
            object-fit: contain;
            margin-bottom: 28px;
            border-radius: 20px;
            box-shadow: 0 0 40px var(--blue-glow);
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            letter-spacing: -0.03em;
            margin-bottom: 12px;
            line-height: 1.15;
        }

        .hero h1 span {
            background: var(--blue-light);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            color: var(--text-muted);
            font-size: 1.15rem;
            max-width: 520px;
            margin: 0 auto 36px;
        }

        /* Sections */
        section {
            padding: 60px 0;
        }

        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 480px;
        }

        /* Cards */
        .cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 28px;
            transition: border-color 0.2s, transform 0.2s;
        }

        .card:hover {
            border-color: var(--blue);
            transform: translateY(-3px);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(59, 130, 246, 0.12);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 1.4rem;
        }

        .card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Footer */
        footer {
            border-top: 1px solid var(--border);
            padding: 36px 0;
            text-align: center;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
        }

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: var(--blue-light);
        }

        .footer-copy {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Responsive */
        @media (max-width: 640px) {
            .header-inner {
                flex-direction: column;
                gap: 12px;
            }

            nav {
                flex-wrap: wrap;
                justify-content: center;
            }

            .hero {
                padding: 50px 0 40px;
            }

            .hero-logo {
                width: 90px;
                height: 90px;
            }

            .ip-box {
                flex-direction: column;
                gap: 4px;
                padding: 16px 24px;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .community {
                padding: 36px 20px;
            }
        }