/* Mobile Styles */
@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    .mobile-menu-toggle {
        display: block;
    }

    nav {
        display: none !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--surface);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        padding: 1rem;
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    nav.active {
        display: block !important;
        opacity: 1;
        transform: translateY(0);
    }

    nav ul {
        flex-direction: column;
        gap: 0.75rem;
    }

    nav a {
        display: block;
        padding: 0.75rem;
        border-radius: 4px;
    }

    nav a:hover {
        background-color: var(--muted);
    }

    .header-content {
        position: relative;
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        padding: 1.5rem;
    }

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

    .hero-tagline {
        font-size: 1.15rem;
    }

    section {
        padding: 4rem 1.5rem;
    }

    section h2 {
        font-size: 2.5rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .instructor-header {
        flex-direction: column;
        text-align: center;
    }

    .belt-rank {
        padding: 1.5rem;
    }

    .belt-header {
        flex-direction: column;
        text-align: center;
    }

    .belt-title h3 {
        font-size: 1.5rem;
    }

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

    .syllabus-table {
        font-size: 0.9rem;
    }

    .syllabus-table th,
    .syllabus-table td {
        padding: 0.75rem;
    }
}