/* Responsive Design - responsive.css */

@media (max-width: 768px) {
    /* Mobile Menu Toggle Button */
    .mobile-menu-toggle {
        display: block !important;
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        color: var(--text-primary);
        font-size: 28px;
        cursor: pointer;
        padding: 8px;
        line-height: 1;
        z-index: 1001;
    }

    /* Navigation */
    .nav-container {
        position: relative;
        padding: 15px 0;
    }

    /* Logo section */
    .nav-logo-section {
        position: relative;
        z-index: 1002;
    }

    /* Hide desktop theme toggle on mobile */
    .nav-right {
        display: none !important;
    }

    /* Hide navigation tabs by default on mobile */
    .nav-tabs {
        display: flex !important;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--nav-bg);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.3s ease;
        z-index: 1000;
        border-bottom: 2px solid var(--accent-primary);
        list-style: none;
        gap: 0;
    }

    /* Show menu when active */
    .nav-tabs.active {
        max-height: 600px;
        opacity: 1;
    }

    .nav-tabs li {
        width: 100%;
        margin: 0;
    }

    .nav-tabs button {
        width: 100%;
        padding: 15px;
        font-size: 16px;
        text-align: left;
        border-radius: 8px;
        margin-bottom: 5px;
        background: none;
        border: none;
        color: var(--text-primary);
        cursor: pointer;
    }

    .nav-tabs button:hover {
        background: var(--bg-secondary);
    }

    /* Mobile theme toggle */
    .mobile-theme-toggle {
        width: 100%;
        padding: 15px;
        font-size: 16px;
        text-align: left;
        border-radius: 8px;
        background: none;
        border: none;
        color: var(--text-primary);
        cursor: pointer;
        margin-top: 10px;
        border-top: 1px solid var(--border-color);
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .mobile-theme-toggle:hover {
        background: var(--bg-secondary);
    }

    /* Publications Page - Mobile */
    .publication-card {
        flex-direction: column;
        margin-bottom: 20px;
    }

    .publication-teaser {
        width: 100%;
        height: 200px;
        margin: 0;
        border-radius: 8px 8px 0 0;
    }

    .publication-info {
        padding: 20px;
    }

    .publication-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .publication-title {
        font-size: 18px;
    }

    .publication-actions {
        flex-wrap: wrap;
        gap: 8px;
    }

    .action-btn {
        flex: 1 1 auto;
        min-width: 80px;
        justify-content: center;
    }

    /* Contact Page - Mobile */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .contact-card {
        padding: 20px;
    }

    .contact-card[style*="grid-column: span 3"] {
        grid-column: span 1 !important;
    }

    .map-embed {
        height: 250px;
    }

    .map-embed iframe {
        height: 250px;
    }

    /* Research List */
    .research-list {
        grid-template-columns: 1fr;
    }

    /* Slideshow */
    .slideshow-container {
        margin-top: 20px;
    }

    .slide-content {
        min-height: 250px;
        padding: 1.5rem;
        max-width: 100%;
    }

    .slide-content h3 {
        font-size: 1.5rem;
    }

    /* Team Grid */
    .team-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .team-member {
        width: 100%;
        min-height: auto;
    }

    .member-photo {
        width: 70px;
        height: 70px;
    }

    .member-actions {
        flex-direction: column;
    }

    .member-action-btn {
        width: 100%;
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }

    .footer-logos {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }

    .footer-logo-badge {
        height: 60px;
    }

    .footer-logo-badge img {
        height: 55px;
    }

    /* Container padding */
    .container {
        padding: 0 16px;
    }

    /* Access Info */
    .access-info {
        padding: 20px;
    }

    .apply-actions {
        flex-direction: column;
    }

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

    /* News Section */
    .news-content {
        max-height: 400px;
    }

    .news-item {
        padding: 15px 20px;
    }

    .news-meta {
        flex-wrap: wrap;
    }

    /* Contact Actions */
    .contact-actions {
        margin-top: 12px;
    }

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

/* Hide mobile elements on desktop */
@media (min-width: 769px) {
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .mobile-theme-toggle {
        display: none !important;
    }
}

/* Tablet adjustments */
@media (max-width: 1024px) and (min-width: 769px) {
    /* Publications Page - Mobile */
    .publication-card {
        flex-direction: column;
        margin-bottom: 20px;
    }

    .publication-teaser {
        width: 100%;
        height: 200px;
        margin: 0;
        border-radius: 0;
        background: #ffffff;
        padding: 12px;
    }

    .publication-teaser img {
        max-width: 100%;
        max-height: 100%;
        width: auto;
        height: auto;
        object-fit: contain;
    }

    .publication-info {
        padding: 20px;
    }

    .publication-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .publication-title {
        font-size: 18px;
    }

    .publication-actions {
        flex-wrap: wrap;
        gap: 8px;
    }

    .action-btn {
        flex: 1 1 auto;
        min-width: 80px;
        justify-content: center;
    }
}