body {
            background: #f8f9fa;
            font-family: Arial, sans-serif;
        }

        .hero {
            background:
                linear-gradient(rgba(0, 0, 0, 0.75),
                    rgba(0, 0, 0, 0.75)),
                url('../../images/clen.jpg');

            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;

            min-height: 80vh;

            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;

            color: white;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: bold;
        }

        .hero p {
            font-size: 1.2rem;
        }

        .portal-card {
            border: none;
            border-radius: 20px;
            transition: 0.3s;
            overflow: hidden;
        }

        .portal-card:hover {
            transform: translateY(-6px);
        }

        .portal-icon {
            font-size: 3.5rem;
        }

        .btn-gold {
            background: #D4AF37;
            border: none;
            color: #000;
            font-weight: bold;
        }

        .btn-gold:hover {
            background: #c79d16;
            color: #000;
        }

        footer {
            background: #111827;
            color: white;
        }