/* ===== Tablet Screens (768px and below) ===== */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 70px;
        right: 0;
        left: 0;
        flex-direction: column;
        background-color: white;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        max-height: 400px;
    }

    .nav-menu li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
    }

    .nav-menu a.active::after {
        display: none;
    }

    .nav-menu a.active {
        background-color: var(--bg-light);
        color: var(--primary-color);
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .about-preview h2,
    .featured-courses h2,
    .vision-mission-values h2 {
        font-size: 2rem;
    }

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

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .whatsapp-btn {
        bottom: 20px;
        left: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

/* ===== Mobile Screens (480px and below) ===== */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .hero {
        padding: 60px 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .about-preview,
    .featured-courses,
    .vision-mission-values,
    .statistics {
        padding: 40px 15px;
    }

    .about-preview h2,
    .featured-courses h2,
    .vision-mission-values h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }

    .card i {
        font-size: 2.5rem;
    }

    .card h3 {
        font-size: 1.2rem;
    }

    .stat-item h3 {
        font-size: 2rem;
    }

    .stat-item p {
        font-size: 0.95rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-section h4 {
        font-size: 1.1rem;
    }

    .footer-bottom {
        font-size: 0.9rem;
    }
}