/**
 * Bootstrap 5 Theme Overrides
 * 
 * Purpose: Customize Bootstrap variables and theme colors
 * Keep this file minimal - only theme-level customizations
 */

:root {
  /* Primary Color Palette - Professional Blue */
  --bs-primary: #2563eb;
  --bs-primary-rgb: 37, 99, 235;
  --bs-secondary: #64748b;
  --bs-secondary-rgb: 100, 116, 139;
  
  /* Success, Warning, Danger, Info */
  --bs-success: #10b981;
  --bs-warning: #f59e0b;
  --bs-danger: #ef4444;
  --bs-info: #06b6d4;
  
  /* Neutral Grays */
  --bs-light: #f8fafc;
  --bs-dark: #1e293b;
  --bs-gray-100: #f1f5f9;
  --bs-gray-200: #e2e8f0;
  --bs-gray-300: #cbd5e1;
  --bs-gray-400: #94a3b8;
  --bs-gray-500: #64748b;
  --bs-gray-600: #475569;
  --bs-gray-700: #334155;
  --bs-gray-800: #1e293b;
  --bs-gray-900: #0f172a;
  
  /* Border and Shadows - Flat Design */
  --bs-border-radius: 0.375rem;
  --bs-border-radius-sm: 0.25rem;
  --bs-border-radius-lg: 0.5rem;
  --bs-border-color: #e2e8f0;
  
  /* Minimal shadows for flat design */
  --box-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --box-shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --bs-body-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --bs-body-font-size: 0.9375rem;
  --bs-body-line-height: 1.6;
  --bs-body-color: #1e293b;
  --bs-body-bg: #f8fafc;
  
  /* Link Colors */
  --bs-link-color: #2563eb;
  --bs-link-hover-color: #1d4ed8;
}

/* Override Bootstrap primary button */
.btn-primary {
  background-color: var(--bs-primary);
  border-color: var(--bs-primary);
  color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
  color: #ffffff;
}

/* Override Bootstrap cards for flat design */
.card {
  border: 1px solid var(--bs-border-color);
  box-shadow: var(--box-shadow-sm);
}

.card-header {
  background-color: var(--bs-light);
  border-bottom: 1px solid var(--bs-border-color);
}

/* Override form controls for cleaner look */
.form-control:focus,
.form-select:focus {
  border-color: var(--bs-primary);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

/* Override navbar for flat design */
.navbar {
  box-shadow: var(--box-shadow-sm);
}

/* Override alert styling for flat design */
.alert {
  border-left-width: 4px;
  border-radius: var(--bs-border-radius);
}

/* Override badge styling */
.badge {
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: var(--bs-border-radius-sm);
}

/* Override table styling */
.table {
  color: var(--bs-body-color);
}

.table-hover tbody tr:hover {
  background-color: var(--bs-gray-100);
}

/* Override breadcrumb */
.breadcrumb {
  background-color: transparent;
  padding: 0;
  margin-bottom: 1.5rem;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--bs-gray-400);
}