/* Performance Dashboard Styles */

.performance-dashboard {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    transition: opacity 0.3s ease;
}

.performance-dashboard.hidden {
    display: none;
}

.performance-dashboard .performance-header {
    background: var(--card-bg, #ffffff);
    border-radius: 12px 12px 0 0;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color, #e0e0e0);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.performance-dashboard .performance-header h3 {
    margin: 0;
    color: var(--text-primary, #333333);
    font-size: 1.5rem;
    font-weight: 600;
}

.performance-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.performance-controls button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--primary-color, #007bff);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover, #0056b3);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary-color, #6c757d);
    color: white;
}

.btn-secondary:hover {
    background: var(--secondary-hover, #545b62);
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--warning-color, #ffc107);
    color: #212529;
}

.btn-warning:hover {
    background: var(--warning-hover, #e0a800);
    transform: translateY(-1px);
}

.btn-close {
    background: var(--danger-color, #dc3545);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
}

.btn-close:hover {
    background: var(--danger-hover, #c82333);
    transform: scale(1.1);
}

.performance-content {
    background: var(--card-bg, #ffffff);
    border-radius: 0 0 12px 12px;
    max-width: 1200px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.performance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    padding: 20px;
}

.performance-card {
    background: var(--card-bg, #ffffff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.performance-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.performance-card h4 {
    margin: 0 0 15px 0;
    color: var(--text-primary, #333333);
    font-size: 1.2rem;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-color, #007bff);
    padding-bottom: 8px;
}

/* Cache Statistics */
.cache-stats,
.system-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light, #f0f0f0);
}

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

.stat-label {
    color: var(--text-secondary, #666666);
    font-weight: 500;
}

.stat-value {
    color: var(--text-primary, #333333);
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.cache-efficiency-bar {
    width: 100%;
    height: 8px;
    background: var(--border-light, #f0f0f0);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 15px;
}

.efficiency-fill {
    height: 100%;
    transition: width 0.3s ease;
    border-radius: 4px;
}

.efficiency-fill.excellent {
    background: linear-gradient(90deg, #28a745, #20c997);
}

.efficiency-fill.good {
    background: linear-gradient(90deg, #17a2b8, #20c997);
}

.efficiency-fill.fair {
    background: linear-gradient(90deg, #ffc107, #fd7e14);
}

.efficiency-fill.poor {
    background: linear-gradient(90deg, #dc3545, #e74c3c);
}

/* Performance Chart */
.chart-card {
    grid-column: span 2;
}

.performance-chart {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    background: var(--chart-bg, #f8f9fa);
    border-radius: 6px;
    padding: 15px;
}

#performance-canvas {
    border: 1px solid var(--border-light, #e9ecef);
    border-radius: 4px;
    background: white;
}

/* Cache Management */
.cache-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.cache-settings {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.setting-item label {
    color: var(--text-secondary, #666666);
    font-weight: 500;
    font-size: 0.9rem;
}

.setting-item input[type="number"] {
    padding: 8px 12px;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 4px;
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
}

.setting-item input[type="number"]:focus {
    outline: none;
    border-color: var(--primary-color, #007bff);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.setting-item input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(1.2);
}

/* Recent Operations */
.operations-card {
    grid-column: span 2;
}

.operations-list {
    max-height: 300px;
    overflow-y: auto;
}

.operation-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--border-light, #f0f0f0);
    border-radius: 6px;
    margin-bottom: 8px;
    background: var(--item-bg, #fafafa);
    transition: background-color 0.2s ease;
}

.operation-item:hover {
    background: var(--item-hover, #f0f0f0);
}

.operation-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.operation-name {
    font-weight: 600;
    color: var(--text-primary, #333333);
}

.operation-time {
    font-size: 0.8rem;
    color: var(--text-secondary, #666666);
}

.operation-duration {
    font-weight: 600;
    font-family: 'Courier New', monospace;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.operation-duration.fast {
    background: var(--success-light, #d4edda);
    color: var(--success-dark, #155724);
}

.operation-duration.medium {
    background: var(--warning-light, #fff3cd);
    color: var(--warning-dark, #856404);
}

.operation-duration.slow {
    background: var(--danger-light, #f8d7da);
    color: var(--danger-dark, #721c24);
}

.no-operations {
    text-align: center;
    color: var(--text-secondary, #666666);
    font-style: italic;
    padding: 20px;
}

/* Performance Alerts */
.alerts-list {
    max-height: 300px;
    overflow-y: auto;
}

.alert-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 8px;
    border-left: 4px solid;
    transition: opacity 0.2s ease;
}

.alert-item.success {
    background: var(--success-light, #d4edda);
    border-left-color: var(--success-color, #28a745);
    color: var(--success-dark, #155724);
}

.alert-item.info {
    background: var(--info-light, #d1ecf1);
    border-left-color: var(--info-color, #17a2b8);
    color: var(--info-dark, #0c5460);
}

.alert-item.warning {
    background: var(--warning-light, #fff3cd);
    border-left-color: var(--warning-color, #ffc107);
    color: var(--warning-dark, #856404);
}

.alert-item.error {
    background: var(--danger-light, #f8d7da);
    border-left-color: var(--danger-color, #dc3545);
    color: var(--danger-dark, #721c24);
}

.alert-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-message {
    font-weight: 500;
    margin-bottom: 4px;
}

.alert-time {
    font-size: 0.8rem;
    opacity: 0.8;
}

.alert-dismiss {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s ease;
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.alert-dismiss:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.1);
}

.no-alerts {
    text-align: center;
    color: var(--text-secondary, #666666);
    font-style: italic;
    padding: 20px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .performance-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-card,
    .operations-card {
        grid-column: span 1;
    }
    
    .performance-content {
        max-height: 90vh;
        margin: 20px;
    }
}

@media (max-width: 768px) {
    .performance-dashboard {
        padding: 10px;
    }
    
    .performance-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .performance-controls {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .performance-grid {
        padding: 15px;
        gap: 15px;
    }
    
    .performance-card {
        padding: 15px;
    }
    
    .cache-controls {
        flex-direction: column;
    }
    
    .operation-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .performance-header h3 {
        font-size: 1.3rem;
    }
    
    .performance-controls button {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .performance-grid {
        padding: 10px;
    }
    
    .performance-card {
        padding: 12px;
    }
    
    .stat-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .performance-dashboard {
        --card-bg: #2d3748;
        --text-primary: #e2e8f0;
        --text-secondary: #a0aec0;
        --border-color: #4a5568;
        --border-light: #4a5568;
        --chart-bg: #1a202c;
        --item-bg: #2d3748;
        --item-hover: #4a5568;
        --success-light: rgba(72, 187, 120, 0.2);
        --success-dark: #68d391;
        --info-light: rgba(66, 153, 225, 0.2);
        --info-dark: #63b3ed;
        --warning-light: rgba(236, 201, 75, 0.2);
        --warning-dark: #f6e05e;
        --danger-light: rgba(245, 101, 101, 0.2);
        --danger-dark: #fc8181;
    }
}

/* Animation for dashboard appearance */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.performance-dashboard:not(.hidden) .performance-header,
.performance-dashboard:not(.hidden) .performance-content {
    animation: slideIn 0.3s ease-out;
}

/* Scrollbar Styling */
.performance-content::-webkit-scrollbar,
.operations-list::-webkit-scrollbar,
.alerts-list::-webkit-scrollbar {
    width: 8px;
}

.performance-content::-webkit-scrollbar-track,
.operations-list::-webkit-scrollbar-track,
.alerts-list::-webkit-scrollbar-track {
    background: var(--border-light, #f0f0f0);
    border-radius: 4px;
}

.performance-content::-webkit-scrollbar-thumb,
.operations-list::-webkit-scrollbar-thumb,
.alerts-list::-webkit-scrollbar-thumb {
    background: var(--border-color, #e0e0e0);
    border-radius: 4px;
}

.performance-content::-webkit-scrollbar-thumb:hover,
.operations-list::-webkit-scrollbar-thumb:hover,
.alerts-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary, #666666);
}