* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4cc9f0;
    --success-color: #4caf50;
    --danger-color: #f72585;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.header h1 {
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    font-weight: 300;
}

/* Upload Section */
.upload-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.upload-section h2 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.upload-form {
    display: grid;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-input, .form-textarea {
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

/* File Upload Styling */
.file-upload {
    position: relative;
    width: 100%;
}

.file-upload input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.file-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
    font-weight: 500;
}

.file-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.file-info {
    margin-top: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.upload-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 18px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(67, 97, 238, 0.3);
}

.upload-progress {
    height: 6px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
    display: none;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    width: 0%;
    transition: width 0.3s ease;
}

/* Stats Section */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stat-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.stat-card h3 {
    font-size: 2.2rem;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.stat-card p {
    color: var(--gray-color);
    font-size: 1rem;
}

/* Filter Section */
.filter-section {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 300px;
    display: flex;
    align-items: center;
    background: #f8f9fa;
    border-radius: 8px;
    padding: 5px 15px;
}

.search-box i {
    color: var(--gray-color);
    margin-right: 10px;
}

.search-box input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px;
    font-size: 1rem;
    outline: none;
}

.search-btn, .reset-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.search-btn:hover {
    background: var(--secondary-color);
}

.reset-btn {
    background: #e9ecef;
    color: var(--dark-color);
}

.reset-btn:hover {
    background: #dee2e6;
}

.category-select {
    padding: 12px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
    min-width: 200px;
}

.category-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Gallery Section */
.gallery-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.gallery-section h2 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.gallery-item {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.image-container {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.image-overlay i {
    color: white;
    font-size: 3rem;
}

.image-actions {
    position: absolute;
    bottom: 15px;
    right: 15px;
    display: flex;
    gap: 10px;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .image-actions {
    opacity: 1;
}

.view-btn, .delete-btn {
    padding: 8px 15px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9rem;
}

.view-btn {
    background: rgba(255, 255, 255, 0.9);
    color: var(--dark-color);
}

.view-btn:hover {
    background: white;
}

.delete-btn {
    background: rgba(247, 37, 133, 0.9);
    color: white;
}

.delete-btn:hover {
    background: var(--danger-color);
}

.image-info {
    padding: 20px;
}

.image-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.image-desc {
    color: var(--gray-color);
    margin-bottom: 15px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.image-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--gray-color);
}

.image-category {
    background: #e9ecef;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 500;
}

.image-date {
    font-style: italic;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 5rem;
    color: #e0e0e0;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.8rem;
    color: var(--gray-color);
    margin-bottom: 10px;
}

.empty-state p {
    color: #adb5bd;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 25px;
    color: var(--gray-color);
    font-size: 0.9rem;
    border-top: 1px solid #e0e0e0;
}

.footer-links {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.footer-links a {
    color: var(--gray-color);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.modal-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.modal-content p {
    margin-bottom: 30px;
    color: var(--gray-color);
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.btn-danger, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-danger:hover {
    background: #e1156d;
}

.btn-secondary {
    background: #e9ecef;
    color: var(--dark-color);
}

.btn-secondary:hover {
    background: #dee2e6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .filter-section {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        min-width: auto;
    }
    
    .category-select {
        min-width: auto;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .header, .upload-section, .gallery-section {
        padding: 20px;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-section {
        grid-template-columns: 1fr;
    }
}