@media (max-width: 768px) {
    nav {
        padding: 0 0.8rem;
        height: auto;
        min-height: 60px;
        flex-wrap: wrap;
        gap: 0.4rem;
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }

    .logo-wrap {
        gap: 0.5rem;
    }

    .logo {
        font-size: 1.1rem;
    }

    .logo-img {
        width: 32px !important;
        height: 32px !important;
    }

    .nav-tabs {
        gap: 0.3rem;
    }

    .nav-tab {
        padding: 0.35rem 0.7rem;
        font-size: 0.75rem;
    }

    .view {
        padding: 0.8rem;
    }

    .page-header {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }

    .page-header h1 {
        font-size: 1.3rem;
    }

    .page-header p {
        font-size: 0.85rem;
    }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.6rem;
        margin-bottom: 1.2rem;
    }

    .stat-card {
        padding: 0.8rem 0.6rem;
    }

    .stat-card .num {
        font-size: 1.5rem;
    }

    .stat-card .label {
        font-size: 0.72rem;
    }

    .form-card {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .form-card h2 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .form-group.full {
        grid-column: 1;
    }

    .section-title {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }

    .search-bar {
        gap: 0.5rem;
        margin-bottom: 1.2rem;
    }

    .search-bar input {
        min-width: 100%;
        font-size: 0.9rem;
        padding: 0.65rem 1rem;
    }

    .filter-btn {
        padding: 0.55rem 0.8rem;
        font-size: 0.78rem;
    }

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

    .card-header {
        padding: 1rem;
        gap: 0.75rem;
    }

    .teacher-img {
        width: 44px;
        height: 44px;
    }

    .card-title {
        font-size: 1rem;
    }

    .card-body {
        padding: 0.9rem 1rem;
    }

    .card-footer {
        padding: 0.75rem 1rem;
        gap: 0.5rem;
    }

    .price-tag {
        font-size: 1rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.82rem;
    }

    .btn-sm {
        padding: 0.35rem 0.75rem;
        font-size: 0.75rem;
    }

    .courses-table {
        display: none;
    }

    .mobile-list {
        display: block;
    }

    .modal {
        padding: 1.2rem;
        border-radius: 14px;
        max-width: 98vw;
    }

    .modal h2 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .modal-actions {
        flex-direction: column;
        gap: 0.6rem;
    }

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

    .applicants-filters {
        flex-direction: column;
        gap: 0.5rem;
    }

    .applicants-filters input,
    .applicants-filters select {
        width: 100%;
    }

    .applicants-grid {
        grid-template-columns: 1fr !important;
    }

    .toast {
        font-size: 0.82rem;
        padding: 0.7rem 1rem;
        white-space: normal;
        max-width: 90vw;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }

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

    nav {
        flex-direction: column;
        align-items: stretch;
        padding: 0.5rem 0.75rem;
        height: auto;
    }

    .nav-tabs {
        justify-content: center;
    }

    .logo-wrap {
        justify-content: center;
    }
}