/* ==========================================================================
   Custom SaaS Theme Engine & Contrast Synchronization
   Ensures all UI elements, libraries, and components strictly inherit
   dynamic theme CSS variables (--bs-*) with WCAG AA/AAA compliant contrast.
   ========================================================================== */

/* 1. Global Typography, Body & Surfaces */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--bs-body-color);
    background-color: var(--bs-body-bg);
}

:root {
    --bs-border-radius: 0.5rem;
    --bs-border-radius-sm: 0.375rem;
    --bs-border-radius-lg: 0.75rem;
    --bs-border-radius-xl: 1rem;
    --bs-box-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --bs-box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --bs-box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* 2. Cards & Panels */
.card {
    background-color: var(--bs-card-bg, var(--bs-body-bg));
    color: var(--bs-body-color);
    border: 1px solid var(--bs-border-color, rgba(0, 0, 0, 0.1));
    box-shadow: var(--bs-box-shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--bs-box-shadow);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--bs-border-color, rgba(0, 0, 0, 0.1));
    color: var(--bs-emphasis-color, var(--bs-body-color));
    font-weight: 600;
}

.card-footer {
    background-color: var(--bs-tertiary-bg, transparent);
    border-top: 1px solid var(--bs-border-color, rgba(0, 0, 0, 0.1));
    color: var(--bs-body-color);
}

/* 3. Forms & Inputs */
.form-control, .form-select {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    border-color: var(--bs-border-color, #ced4da);
    box-shadow: var(--bs-box-shadow-sm);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus, .form-select:focus {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.25rem rgba(var(--bs-primary-rgb), 0.25);
}

.form-control::placeholder {
    color: var(--bs-secondary-color, #6c757d);
    opacity: 0.8;
}

.input-group-text {
    background-color: var(--bs-secondary-bg);
    color: var(--bs-body-color);
    border-color: var(--bs-border-color);
}

/* 4. Buttons */
.btn {
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn:active {
    transform: scale(0.98);
}

/* High contrast outline buttons */
.btn-outline-primary {
    color: var(--bs-primary);
    border-color: var(--bs-primary);
}
.btn-outline-primary:hover {
    background-color: var(--bs-primary);
    color: var(--bs-white, #ffffff);
}

/* 5. DataTables Synchronization */
table.dataTable {
    border-collapse: collapse !important;
    color: var(--bs-body-color) !important;
    background-color: transparent !important;
}

table.dataTable thead th,
table.dataTable thead td {
    border-bottom: 2px solid var(--bs-border-color, #dee2e6) !important;
    font-weight: 600;
    color: var(--bs-emphasis-color, var(--bs-body-color)) !important;
    background-color: var(--bs-tertiary-bg, #f8f9fa) !important;
}

table.dataTable tbody tr {
    background-color: var(--bs-body-bg) !important;
    color: var(--bs-body-color) !important;
    transition: background-color 0.15s ease;
}

table.dataTable tbody tr:hover {
    background-color: var(--bs-secondary-bg, #e9ecef) !important;
}

table.dataTable.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: var(--bs-tertiary-bg, rgba(0, 0, 0, 0.02)) !important;
    color: var(--bs-body-color) !important;
}

.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_processing,
.dataTables_wrapper .dataTables_paginate {
    color: var(--bs-body-color) !important;
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    background-color: var(--bs-body-bg) !important;
    color: var(--bs-body-color) !important;
    border: 1px solid var(--bs-border-color) !important;
    border-radius: var(--bs-border-radius-sm);
    padding: 0.375rem 0.75rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    color: var(--bs-body-color) !important;
    border-radius: var(--bs-border-radius-sm) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: var(--bs-primary) !important;
    color: var(--bs-white, #ffffff) !important;
    border-color: var(--bs-primary) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--bs-secondary-bg) !important;
    color: var(--bs-emphasis-color) !important;
    border-color: var(--bs-border-color) !important;
}

/* 6. Select2 Theme Synchronization */
.select2-container--default .select2-selection--single,
.select2-container--default .select2-selection--multiple {
    background-color: var(--bs-body-bg) !important;
    border-color: var(--bs-border-color, #ced4da) !important;
    color: var(--bs-body-color) !important;
    border-radius: var(--bs-border-radius-sm) !important;
    min-height: 38px;
    padding: 4px;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--bs-body-color) !important;
    line-height: 28px;
}

.select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: var(--bs-body-color) transparent transparent transparent !important;
}

.select2-dropdown {
    background-color: var(--bs-body-bg) !important;
    border-color: var(--bs-border-color) !important;
    color: var(--bs-body-color) !important;
    box-shadow: var(--bs-box-shadow-lg) !important;
}

.select2-container--default .select2-search--dropdown .select2-search__field {
    background-color: var(--bs-tertiary-bg) !important;
    color: var(--bs-body-color) !important;
    border: 1px solid var(--bs-border-color) !important;
    border-radius: var(--bs-border-radius-sm);
}

.select2-container--default .select2-results__option {
    color: var(--bs-body-color) !important;
}

.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--bs-primary) !important;
    color: var(--bs-white, #ffffff) !important;
}

.select2-container--default .select2-results__option[aria-selected="true"] {
    background-color: var(--bs-secondary-bg) !important;
    color: var(--bs-emphasis-color) !important;
}

/* 7. SweetAlert2 Contrast Synchronization */
.swal2-popup {
    background: var(--bs-body-bg) !important;
    color: var(--bs-body-color) !important;
    border: 1px solid var(--bs-border-color) !important;
    border-radius: var(--bs-border-radius-lg) !important;
    box-shadow: var(--bs-box-shadow-lg) !important;
}

.swal2-title {
    color: var(--bs-emphasis-color, var(--bs-body-color)) !important;
}

.swal2-html-container,
.swal2-content {
    color: var(--bs-body-color) !important;
}

.swal2-close {
    color: var(--bs-secondary-color) !important;
}

.swal2-close:hover {
    color: var(--bs-emphasis-color) !important;
}

/* 8. Badges & High-Contrast Feedback Elements */
.badge {
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* Subtle badges with high text contrast */
.bg-primary-subtle {
    background-color: var(--bs-primary-bg-subtle) !important;
    color: var(--bs-primary-text-emphasis) !important;
    border: 1px solid var(--bs-primary-border-subtle);
}

.bg-secondary-subtle {
    background-color: var(--bs-secondary-bg-subtle) !important;
    color: var(--bs-secondary-text-emphasis) !important;
    border: 1px solid var(--bs-secondary-border-subtle);
}

.bg-success-subtle {
    background-color: var(--bs-success-bg-subtle) !important;
    color: var(--bs-success-text-emphasis) !important;
    border: 1px solid var(--bs-success-border-subtle);
}

.bg-info-subtle {
    background-color: var(--bs-info-bg-subtle) !important;
    color: var(--bs-info-text-emphasis) !important;
    border: 1px solid var(--bs-info-border-subtle);
}

.bg-warning-subtle {
    background-color: var(--bs-warning-bg-subtle) !important;
    color: var(--bs-warning-text-emphasis) !important;
    border: 1px solid var(--bs-warning-border-subtle);
}

.bg-danger-subtle {
    background-color: var(--bs-danger-bg-subtle) !important;
    color: var(--bs-danger-text-emphasis) !important;
    border: 1px solid var(--bs-danger-border-subtle);
}

/* 9. Modals & Dropdowns */
.modal-content {
    background-color: var(--bs-body-bg) !important;
    color: var(--bs-body-color) !important;
    border: 1px solid var(--bs-border-color) !important;
    border-radius: var(--bs-border-radius-lg);
    box-shadow: var(--bs-box-shadow-lg);
}

.modal-header,
.modal-footer {
    border-color: var(--bs-border-color) !important;
}

.dropdown-menu {
    background-color: var(--bs-body-bg) !important;
    color: var(--bs-body-color) !important;
    border: 1px solid var(--bs-border-color) !important;
    box-shadow: var(--bs-box-shadow);
}

.dropdown-item {
    color: var(--bs-body-color) !important;
}

.dropdown-item:hover, .dropdown-item:focus {
    background-color: var(--bs-secondary-bg) !important;
    color: var(--bs-emphasis-color) !important;
}

.dropdown-divider {
    border-color: var(--bs-border-color) !important;
}

/* 10. Navs, Tabs & Breadcrumbs */
.nav-tabs {
    border-bottom-color: var(--bs-border-color);
}

.nav-tabs .nav-link {
    color: var(--bs-secondary-color);
}

.nav-tabs .nav-link.active {
    color: var(--bs-primary);
    background-color: var(--bs-body-bg);
    border-color: var(--bs-border-color) var(--bs-border-color) var(--bs-body-bg);
}

.breadcrumb-item a {
    color: var(--bs-primary);
}

.breadcrumb-item.active {
    color: var(--bs-secondary-color);
}

/* 11. Empty States & Helpers */
.empty-state {
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--bs-secondary-color);
}
.empty-state i {
    font-size: 3rem;
    color: var(--bs-tertiary-color);
    margin-bottom: 1rem;
}
.empty-state h4 {
    font-weight: 600;
    color: var(--bs-emphasis-color);
}