/* Base Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #2ecc71;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --text-color: #333;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: #f5f7fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
    color: white;
    padding: 30px 0;
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
}

.header h1 {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 600;
}

.timestamp {
    font-style: italic;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 10px;
}

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

.dashboard-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.dashboard-card h3 {
    margin-top: 0;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.dashboard-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin: 10px 0;
}

.unit {
    font-size: 0.9rem;
    color: #777;
}

/* Panels */
.panel {
    background: white;
    border-radius: var(--border-radius);
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
}

.panel h2 {
    margin-top: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

/* Row and Column Layout */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px 30px;
}

.col {
    flex: 1;
    padding: 0 15px;
    min-width: 300px;
}

/* Charts */
.chart-container {
    height: 400px;
    position: relative;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

th, td {
    border: 1px solid #eee;
    padding: 12px;
    text-align: left;
}

th {
    background-color: var(--light-color);
    color: var(--primary-color);
    font-weight: 600;
    position: sticky;
    top: 0;
    box-shadow: 0 1px 0 #ddd;
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}

tr:hover {
    background-color: #f1f7fb;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 20px 0;
    margin-top: 50px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: 1fr;
    }
    
    .col {
        flex: 0 0 100%;
        margin-bottom: 20px;
    }
    
    .chart-container {
        height: 300px;
    }
    
    .panel {
        padding: 15px;
    }
}

/* Loading Animation */
@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s infinite;
    text-align: center;
    padding: 20px;
}

/* Chart Color Theme */
.chart-colors {
    --chart-color-1: #3498db;
    --chart-color-2: #2ecc71;
    --chart-color-3: #f39c12;
    --chart-color-4: #e74c3c;
    --chart-color-5: #9b59b6;
}