/* Theme Variables */
:root {
    --primary-color: #007c91;
    --secondary-color: #005f73;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --text-color: #333333;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
}

/* Base Layout */
body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--light-bg);
}

/* Navigation */
.navbar-brand {
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border-radius: 0.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.stats-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-card p {
    margin-bottom: 0;
    opacity: 0.9;
}

/* Form Styling */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 124, 145, 0.25);
}

.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 124, 145, 0.25);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Tables */
.table {
    background-color: white;
    border-radius: 0.5rem;
    overflow: hidden;
}

.table thead th {
    background-color: var(--light-bg);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    color: var(--text-color);
}

.table tbody tr:hover {
    background-color: rgba(0, 124, 145, 0.05);
}

/* Alerts */
.alert {
    border: none;
    border-radius: 0.5rem;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Comparison Grid */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.comparison-card {
    background: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border-left: 4px solid var(--primary-color);
}

/* Filter Section */
.filter-section {
    background: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* Responsive Design */
@media (max-width: 768px) {
    .stats-card h3 {
        font-size: 1.5rem;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* Select2 Customization */
.select2-container--default .select2-selection--single {
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    height: 38px;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    line-height: 36px;
    padding-left: 0.75rem;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 36px;
}

.select2-dropdown {
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Data Visualization */
.chart-container {
    background: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* Footer */
footer {
    margin-top: auto;
}

/* Utility Classes */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.border-primary {
    border-color: var(--primary-color) !important;
}