:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #34495e;
    --success-color: #2ecc71;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: var(--secondary-color);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    background-color: var(--primary-color);
}

.page-title {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--secondary-color);
}

.storage-info {
    background: #e8f4fd;
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 2rem;
}

.storage-info h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.search-bar {
    display: flex;
    margin-bottom: 2rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.search-bar input, .search-bar select {
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    flex: 1;
    min-width: 200px;
}

.search-bar button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.search-bar button:hover {
    background-color: #2980b9;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-info {
    padding: 1rem;
}

.project-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.project-year {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.project-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #7f8c8d;
}

.admin-form {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    max-width: 800px;
    margin: 0 auto 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.file-upload {
    border: 2px dashed #ddd;
    padding: 1.5rem;
    text-align: center;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.file-upload:hover {
    border-color: var(--primary-color);
}

.file-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.preview-item {
    position: relative;
    width: 150px;
    height: 150px;
    border-radius: 4px;
    overflow: hidden;
    border: 2px solid #eee;
}

.preview-item img, .preview-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.file-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 0.25rem;
    font-size: 0.7rem;
    text-align: center;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-danger {
    background-color: var(--accent-color);
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.projects-list {
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.project-item {
    display: flex;
    padding: 1rem;
    border-bottom: 1px solid #eee;
    align-items: center;
}

.project-item:last-child {
    border-bottom: none;
}

.project-item-image {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 1rem;
}

.project-item-info {
    flex: 1;
}

.project-item-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.project-item-year {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.project-item-actions {
    display: flex;
    gap: 0.5rem;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background-color: white;
    margin: 2rem auto;
    width: 90%;
    max-width: 1000px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #7f8c8d;
}

.modal-body {
    padding: 1.5rem;
}

.project-media {
    margin-bottom: 1.5rem;
}

.project-media img, .project-media video {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 4px;
}

.media-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.gallery-item {
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
}

.gallery-item:hover {
    border-color: var(--primary-color);
}

.gallery-item img, .gallery-item video {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.notification {
    padding: 1rem 1.5rem;
    border-radius: 4px;
    color: white;
    margin-bottom: 1rem;
}

.notification.success {
    background-color: var(--success-color);
}

.text-center {
    text-align: center;
}

.mt-2 {
    margin-top: 2rem;
}

.hidden {
    display: none;
}

@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .search-bar {
        flex-direction: column;
    }
    
    .project-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .project-item-image {
        margin-bottom: 1rem;
    }
    
    .project-item-actions {
        margin-top: 1rem;
        width: 100%;
        justify-content: flex-end;
    }
    
    .file-preview {
        justify-content: center;
    }
    
    .preview-item {
        width: 120px;
        height: 120px;
    }
}