@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .vip-form input {
        width: 100%;
        margin-bottom: 10px;
    }

    .footer-grid {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
}