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

body {
    font-family: 'Poppins', sans-serif;
    background: #f5f5f5;
    color: #333;
}

.admin-container {
    min-height: 100vh;
    background: #f5f5f5;
}

/* Header */
.admin-header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.header-left h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.header-left h1 i {
    color: #3498db;
    margin-right: 10px;
}

.subtitle {
    color: #bdc3c7;
    font-size: 0.9rem;
}

.header-stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item i {
    font-size: 1.5rem;
    color: #3498db;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: #bdc3c7;
    margin-bottom: 0.2rem;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
}

/* Tabs */
.admin-tabs {
    background: white;
    padding: 0 2rem;
    display: flex;
    gap: 0;
    border-bottom: 1px solid #e0e0e0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tab-btn {
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    font-size: 1rem;
    color: #7f8c8d;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: #3498db;
    background: #f8f9fa;
}

.tab-btn.active {
    color: #3498db;
    border-bottom-color: #3498db;
    font-weight: 600;
}

/* Tab Content */
.tab-content {
    display: none;
    padding: 2rem;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.tab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.tab-header h2 {
    font-size: 1.5rem;
    color: #2c3e50;
}

.tab-header h2 i {
    color: #3498db;
    margin-right: 10px;
}

.tab-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-box {
    display: flex;
    align-items: center;
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    gap: 10px;
    min-width: 250px;
}

.search-box i {
    color: #95a5a6;
}

.search-box input {
    border: none;
    outline: none;
    width: 100%;
    font-size: 0.9rem;
    color: #333;
}

.search-box input::placeholder {
    color: #95a5a6;
}

.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

/* Photos Grid */
.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.photo-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    animation: cardAppear 0.5s ease-out;
}

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

.photo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.photo-card.new {
    animation: newPhoto 1s ease-out;
}

@keyframes newPhoto {
    0% { transform: scale(0.95); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.photo-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

.photo-card:hover .photo-image img {
    transform: scale(1.05);
}

.photo-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(46, 204, 113, 0.9);
    color: white;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.photo-info {
    padding: 1rem;
}

.photo-title {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
}

.photo-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #7f8c8d;
}

.photo-actions {
    display: flex;
    gap: 0.5rem;
    padding: 0 1rem 1rem;
}

.action-btn {
    flex: 1;
    padding: 0.5rem;
    border: none;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.3s ease;
}

.action-btn.view {
    background: #3498db;
    color: white;
}

.action-btn.view:hover {
    background: #2980b9;
}

.action-btn.download {
    background: #2ecc71;
    color: white;
}

.action-btn.download:hover {
    background: #27ae60;
}

.action-btn.delete {
    background: #e74c3c;
    color: white;
}

.action-btn.delete:hover {
    background: #c0392b;
}

/* Sessions List */
.sessions-list {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.session-item {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.session-item:hover {
    background: #f8f9fa;
}

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

.session-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.session-icon {
    width: 40px;
    height: 40px;
    background: #3498db;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.session-details h4 {
    font-size: 1rem;
    color: #2c3e50;
    margin-bottom: 0.3rem;
}

.session-details p {
    font-size: 0.8rem;
    color: #7f8c8d;
    display: flex;
    gap: 1rem;
}

.session-status {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #2ecc71;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.session-count {
    background: #f8f9fa;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: #3498db;
    font-weight: 600;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: #3498db;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-info h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 0.3rem;
}

.stat-info p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.chart-box {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.chart-box h3 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chart-box h3 i {
    color: #3498db;
}

.chart-placeholder {
    height: 200px;
    background: #f8f9fa;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #95a5a6;
    font-size: 0.9rem;
}

/* Loading & No Content */
.loading, .no-content {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 12px;
    margin-top: 1rem;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.no-content i {
    font-size: 3rem;
    color: #bdc3c7;
    margin-bottom: 1rem;
}

.no-content h3 {
    color: #7f8c8d;
    margin-bottom: 0.5rem;
}

.no-content p {
    color: #95a5a6;
}

/* Live Indicator */
.live-indicator {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: white;
    padding: 0.6rem 1rem;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: #2ecc71;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
    z-index: 100;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: #2ecc71;
    border-radius: 50%;
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Footer */
.admin-footer {
    background: white;
    padding: 1rem 2rem;
    border-top: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
}

.admin-footer p {
    color: #7f8c8d;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-footer p i {
    color: #3498db;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-links a {
    color: #3498db;
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    text-decoration: underline;
}

.separator {
    color: #bdc3c7;
}

#serverTime {
    font-size: 0.8rem;
    color: #95a5a6;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: white;
    border-radius: 16px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideUp 0.3s ease-out;
}

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

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.3rem;
    color: #2c3e50;
}

.modal-header h3 i {
    color: #3498db;
    margin-right: 8px;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.8rem;
    color: #95a5a6;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-modal:hover {
    background: #f8f9fa;
    color: #e74c3c;
}

.modal-body {
    padding: 1.5rem;
    max-height: calc(90vh - 150px);
    overflow-y: auto;
}

.modal-image-container {
    margin-bottom: 1.5rem;
}

.modal-image-container img {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: 8px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
}

.modal-info {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
}

.info-row {
    display: flex;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

.info-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.info-label {
    width: 120px;
    font-weight: 600;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.info-value {
    flex: 1;
    color: #2c3e50;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    word-break: break-all;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid #e0e0e0;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .charts-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .header-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .tab-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .tab-controls {
        flex-direction: column;
    }
    
    .search-box {
        min-width: auto;
    }
    
    .photos-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .admin-footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .photos-grid {
        grid-template-columns: 1fr;
    }
    
    .session-item {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .session-status {
        justify-content: space-between;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        justify-content: center;
    }
}