:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}

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

.report-header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.report-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.report-subtitle {
    font-size: 1.25rem;
    color: var(--secondary-color);
}

.report-meta {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.section {
    background-color: white;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    background-color: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    text-align: center;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
}

tr:hover {
    background-color: #f8fafc;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-success {
    background-color: #dcfce7;
    color: #166534;
}

.status-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.status-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.chart-container {
    margin: 2rem 0;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: 6px;
}

@media (max-width: 768px) {
    .report-title {
        font-size: 2rem;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .report-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media print {
    body {
        background-color: white;
    }
    
    .section {
        box-shadow: none;
        break-inside: avoid;
    }
    
    .report-header {
        box-shadow: none;
    }
}