:root {
            --primary-bg: #020617;      /* Deep Midnight */
            --dark-bg: #000000;         /* Absolute Black */
            --card-bg: #0f172a;         /* Slate 900 */
            --accent: #2563eb;          /* NUST Blue */
            --accent-hover: #2563eb;    /* Deep Blue */
            --text-main: #f1f5f9;       /* Slate 100 */
            --text-muted: #94a3b8;      /* Slate 400 */
            --border: #1e293b;          /* Slate 800 */
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Inter', system-ui, sans-serif;
        }

        body {
            background-color: var(--primary-bg);
            color: var(--text-main);
            line-height: 1.6;
        }

        /* Navigation */
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 8%;
            background-color: rgba(15, 23, 42, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -1px;
            text-decoration: none;
            text-transform: uppercase;
        }

        .nav-links a {
            margin-left: 24px;
            text-decoration: none;
            color: var(--text-muted);
            font-weight: 500;
            transition: all 0.2s;
        }

        .nav-links a:hover {
            color: var(--accent);
        }

        .btn-outline {
            border: 1px solid var(--border);
            padding: 8px 16px;
            border-radius: 8px;
            color: var(--text-main);
            transition: all 0.2s;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(59, 130, 246, 0.05);
        }

        .btn-primary {
            background-color: var(--accent);
            color: white !important;
            padding: 10px 20px;
            border-radius: 8px;
            border: none;
            font-weight: 700;
            transition: all 0.2s;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.3);
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 120px 20px;
            background: radial-gradient(circle at top, #1e293b55 0%, var(--primary-bg) 70%);
        }

        .hero h1 {
            font-size: 4rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 24px;
            line-height: 1.1;
            letter-spacing: -2px;
        }

        .hero h1 span {
            color: var(--accent);
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 650px;
            margin: 0 auto 40px auto;
        }

        /* Features Section */
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            padding: 80px 8%;
            background-color: var(--primary-bg);
            border-top: 1px solid var(--border);
        }

        .feature-card {
            padding: 40px;
            border-radius: 20px;
            border: 1px solid var(--border);
            background-color: var(--card-bg);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            border-color: var(--accent);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
        }

        .feature-icon {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 24px;
            display: block;
        }

        .feature-card h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--text-main);
            font-weight: 700;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.6;
        }

        /* Footer */
        footer {
            background-color: var(--dark-bg);
            color: white;
            text-align: center;
            padding: 60px 20px;
            border-top: 1px solid var(--border);
        }

        footer p {
            color: var(--text-muted);
            font-size: 0.9rem;
            letter-spacing: 1px;
            text-transform: uppercase;
            font-weight: 600;
        }