/* Hero Section */
.research-hero {
    position: relative;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero-content p {
    font-size: 1.3rem;
    opacity: 0.95;
}

/* Research Section */
.research-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 15px;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, #667eea, #764ba2);
    margin: 0 auto;
    border-radius: 2px;
}

/* Research Grid */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

/* Research Card */
.research-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.research-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.research-card-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.research-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.research-card:hover .research-card-image img {
    transform: scale(1.1);
}

.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.research-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.research-card:hover .research-overlay {
    opacity: 1;
}

.btn-view-details {
    background: white;
    color: #667eea;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-view-details:hover {
    background: #667eea;
    color: white;
    transform: scale(1.05);
}

.research-card-content {
    padding: 25px;
}

.research-category {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.research-card-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 12px;
    line-height: 1.4;
}

.research-excerpt {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.research-meta {
    display: flex;
    gap: 20px;
    padding-top: 15px;
    border-top: 1px solid #e9ecef;
}

.media-count {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #6c757d;
    font-size: 0.9rem;
}

.media-count i {
    color: #667eea;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: #6c757d;
}

.empty-state i {
    font-size: 5rem;
    margin-bottom: 20px;
    opacity: 0.3;
}

.empty-state h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: #495057;
}

/* Research Modal */
.research-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    z-index: 10000;
    overflow-y: auto;
    padding: 20px;
}

.research-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 20px;
    max-width: 1200px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: sticky;
    top: 20px;
    right: 20px;
    float: right;
    background: #dc3545;
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.modal-close:hover {
    background: #c82333;
    transform: rotate(90deg);
}

.modal-body {
    padding: 40px;
}

.modal-loading {
    text-align: center;
    padding: 60px 20px;
    font-size: 1.2rem;
    color: #667eea;
}

.modal-loading i {
    font-size: 2rem;
    margin-bottom: 15px;
}

.modal-error {
    text-align: center;
    padding: 60px 20px;
    color: #dc3545;
    font-size: 1.2rem;
}

.modal-header {
    margin-bottom: 30px;
}

.modal-category {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.modal-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    line-height: 1.3;
}

.modal-description {
    margin-bottom: 40px;
}

.modal-description h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-description h3 i {
    color: #667eea;
}

.modal-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #495057;
}

/* Media Section */
.media-section {
    margin-bottom: 40px;
}

.media-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.media-section h3 i {
    color: #667eea;
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.media-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.media-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.media-item-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.media-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.media-item:hover .media-item-image img {
    transform: scale(1.05);
}

.media-item-content {
    padding: 20px;
}

.media-item-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
}

.media-item-content p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
}

.media-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #e9ecef;
}

.media-item-date {
    color: #6c757d;
    font-size: 0.85rem;
}

.media-item-type {
    display: inline-block;
    background: #e9ecef;
    color: #495057;
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .research-hero {
        height: 300px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .modal-header h2 {
        font-size: 2rem;
    }
    
    .media-grid {
        grid-template-columns: 1fr;
    }
}

/* Media Gallery Styles */
.media-section {
    margin: 2rem 0;
    animation: fadeInUp 0.6s ease-out;
}

.media-section h3 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.media-section h3 i {
    color: #007bff;
}

.media-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.media-gallery.videos-gallery {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* Image Items */
.media-item.image-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    background: #fff;
}

.media-item.image-item:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

.image-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 75%;
    overflow: hidden;
    background: #f5f5f5;
}

.image-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.media-item.image-item:hover .image-wrapper img {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.media-item.image-item:hover .image-overlay {
    opacity: 1;
}

.btn-view-image {
    background: #007bff;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-view-image:hover {
    background: #0056b3;
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(0, 123, 255, 0.4);
}

.media-caption {
    padding: 1rem;
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    background: #f9f9f9;
    margin: 0;
    border-top: 1px solid #eee;
}

/* Video Items */
.media-item.video-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    background: #000;
    transition: all 0.3s ease;
}

.media-item.video-item:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transform: translateY(-5px);
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    background: #000;
}

.video-wrapper iframe,
.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-wrapper video {
    object-fit: cover;
}

.media-item.video-item .media-caption {
    padding: 1rem;
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    background: #f9f9f9;
    margin: 0;
    border-top: 1px solid #eee;
}

/* Lightbox Styles */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10056;
    animation: fadeIn 0.3s ease;
    padding: 1rem;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    animation: zoomIn 0.3s ease;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .media-gallery {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }

    .media-gallery.videos-gallery {
        grid-template-columns: 1fr;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
    }

    .media-section h3 {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .media-gallery {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .media-gallery.videos-gallery {
        grid-template-columns: 1fr;
    }

    .lightbox-content img {
        max-height: 80vh;
    }
}