/* Variables CSS */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #4cc9f0;
    --success-color: #4ade80;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
    --gray-color: #64748b;
    --card-bg: #ffffff;
    --body-bg: #f1f5f9;
    --text-color: #334155;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --primary-color: #5a7cff;
    --secondary-color: #4d1cd4;
    --accent-color: #6bd9ff;
    --light-color: #1e293b;
    --dark-color: #f8fafc;
    --card-bg: #334155;
    --body-bg: #0f172a;
    --text-color: #e2e8f0;
    --border-color: #475569;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--body-bg);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
    min-height: 100vh;
    padding: 10px;
}

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

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 2rem;
}

.tagline {
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-top: 5px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.timeframe-selector select {
    padding: 10px 15px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.timeframe-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover {
    transform: rotate(15deg);
    border-color: var(--primary-color);
}

.theme-icon {
    font-size: 1.2rem;
}

.offline-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-dot.online {
    background-color: var(--success-color);
    animation: pulse 2s infinite;
}

.status-dot.offline {
    background-color: var(--danger-color);
}

.status-text {
    font-size: 0.9rem;
    font-weight: 500;
}

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

/* Metrics Summary */
.metrics-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.metric-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.metric-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-trend {
    font-size: 0.8rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 20px;
}

.metric-trend.up {
    background-color: rgba(74, 222, 128, 0.2);
    color: var(--success-color);
}

.metric-trend.down {
    background-color: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.metric-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.metric-chart-mini {
    height: 50px;
}

/* Charts Section */
.charts-section {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 1100px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.chart-card.full-width {
    grid-column: 1 / -1;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.chart-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
}

.chart-controls {
    display: flex;
    gap: 10px;
}

.chart-control-btn {
    padding: 8px 15px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-color);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.chart-control-btn.active,
.chart-control-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.chart-container {
    height: 300px;
    position: relative;
}

/* Data Section */
.data-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.data-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.data-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-color);
}

.data-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.data-btn {
    padding: 10px 18px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.data-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.data-btn.secondary {
    background-color: var(--gray-color);
}

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

.data-btn.danger:hover {
    background-color: #dc2626;
}

.storage-info {
    margin-top: 20px;
}

.storage-bar {
    height: 10px;
    background-color: var(--border-color);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 10px;
}

.storage-fill {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 5px;
    width: 0%;
    transition: width 1s ease;
}

#storage-text {
    font-size: 0.9rem;
    color: var(--gray-color);
}

.data-import-area {
    margin-top: 20px;
}

#import-textarea {
    width: 100%;
    height: 120px;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--body-bg);
    color: var(--text-color);
    font-family: monospace;
    font-size: 0.9rem;
    resize: vertical;
    margin-bottom: 10px;
}

#import-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.simulation-controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.simulation-options label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.95rem;
}

.simulation-options input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.simulation-status {
    background-color: rgba(67, 97, 238, 0.1);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

#simulation-status {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.simulation-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--gray-color);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
    margin-top: 20px;
}

.footer-note {
    font-size: 0.8rem;
    margin-top: 5px;
    opacity: 0.8;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 15px 20px;
    background-color: var(--card-bg);
    color: var(--text-color);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-left: 4px solid var(--primary-color);
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 1000;
    max-width: 350px;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .metrics-summary {
        grid-template-columns: 1fr;
    }
    
    .chart-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .data-section {
        grid-template-columns: 1fr;
    }
    
    .data-controls {
        flex-direction: column;
    }
    
    .data-btn {
        width: 100%;
    }
}