/* ============================================
   Address Validator — Design System & Core UI
   Modern, premium enterprise admin theme
   ============================================ */

/* --- Google Font --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* --- Design Tokens --- */
:root {
    /* Primary Palette — Indigo */
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --primary-light: #EEF2FF;
    --primary-lighter: #E0E7FF;
    --primary-50: #E0E7FF;
    --primary-100: #C7D2FE;
    --primary-600: #4F46E5;
    --primary-700: #4338CA;
    --primary-800: #3730A3;
    --primary-900: #312E81;

    /* Neutral Palette — Slate */
    --slate-50: #F8FAFC;
    --slate-100: #F1F5F9;
    --slate-200: #E2E8F0;
    --slate-300: #CBD5E1;
    --slate-400: #94A3B8;
    --slate-500: #64748B;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1E293B;
    --slate-900: #0F172A;

    /* Semantic Colors */
    --success: #10B981;
    --success-light: #D1FAE5;
    --success-dark: #065F46;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --danger-dark: #991B1B;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --warning-dark: #92400E;
    --info: #3B82F6;
    --info-light: #DBEAFE;
    --info-dark: #1E40AF;

    /* Surface & Layout */
    --bg-body: #F1F5F9;
    --bg-surface: #FFFFFF;
    --bg-elevated: #FFFFFF;
    --bg-inset: #F8FAFC;
    --border-color: #E2E8F0;
    --border-subtle: #F1F5F9;

    /* Text */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #6B7B90;
    --text-inverse: #FFFFFF;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

    /* Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Legacy compat aliases (used by existing templates via Bootstrap) */
    --primary-color: var(--primary);
    --primary-hover-color: var(--primary-hover);
    --secondary-color: var(--slate-500);
    --success-color: var(--success);
    --danger-color: var(--danger);
    --light-bg: var(--bg-inset);

    /* Status-specific semantic aliases */
    --status-pending: var(--warning);
    --status-pending-bg: var(--warning-light);
    --status-pending-text: var(--warning-dark);
    --status-approved: var(--success);
    --status-approved-bg: var(--success-light);
    --status-approved-text: var(--success-dark);
    --status-rejected: var(--danger);
    --status-rejected-bg: var(--danger-light);
    --status-rejected-text: var(--danger-dark);
    --status-cancelled: var(--slate-400);
    --status-cancelled-bg: var(--slate-100);
    --status-cancelled-text: var(--slate-600);
    --status-running: var(--info);
    --status-running-bg: var(--info-light);
    --status-running-text: var(--info-dark);
    --status-partial: #F97316;
    --status-partial-bg: #FFF7ED;
    --status-partial-text: #9A3412;
    --status-mixed: #A855F7;
    --status-mixed-bg: #F3E8FF;
    --status-mixed-text: #6B21A8;
    --status-field-review: #0EA5E9;
    --status-field-review-bg: #E0F2FE;
    --status-field-review-text: #075985;

    /* Typography scale */
    --text-xs: 0.6875rem;
    --text-sm: 0.75rem;
    --text-base: 0.8125rem;
    --text-md: 0.875rem;
    --text-lg: 1rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;

    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --section-gap: 1.5rem;

    /* Focus ring */
    --focus-ring: 0 0 0 2px var(--bg-surface), 0 0 0 4px var(--primary);
}

/* --- Base Reset & Typography --- */
*,
*::before,
*::after {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 0.875rem;
    line-height: 1.6;
    letter-spacing: -0.011em;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

/* --- Layout Wrapper --- */
.container-wrapper {
    padding: 1.75rem 0 3rem;
}

/* --- Navbar --- */
.navbar {
    background: var(--bg-surface) !important;
    border-bottom: 1px solid var(--border-color) !important;
    box-shadow: none !important;
    padding: 0 !important;
    min-height: 56px;
}

.navbar > .container-lg {
    min-height: 56px;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    color: var(--text-primary) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 0;
}

.navbar-brand i,
.navbar-brand .fas,
.navbar-brand .fa-map-marked-alt {
    color: var(--primary) !important;
    font-size: 1.1rem;
}

.navbar .nav-link {
    font-weight: 500 !important;
    font-size: 0.875rem;
    padding: 1rem 0.875rem !important;
    color: var(--text-secondary) !important;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    position: relative;
}

.navbar .nav-link:hover {
    color: var(--text-primary) !important;
    border-bottom-color: var(--slate-300);
}

.navbar .nav-link.active {
    color: var(--primary) !important;
    font-weight: 600 !important;
    border-bottom-color: var(--primary);
}

/* User dropdown in navbar */
.navbar .dropdown .btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.8125rem;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.navbar .dropdown .btn-outline-secondary:hover {
    background: var(--bg-inset);
    border-color: var(--slate-300);
    color: var(--text-primary);
}

.navbar .dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.375rem;
    margin-top: 0.375rem;
}

.navbar .dropdown-item {
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.navbar .dropdown-item:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.navbar .dropdown-item i {
    width: 1.25rem;
    text-align: center;
    margin-right: 0.25rem;
}

/* --- Page Header --- */
.page-header {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    margin-bottom: 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-xs);
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0;
    color: var(--text-primary);
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.page-header h1 i {
    color: var(--primary) !important;
    font-size: 1.25rem;
}

.page-header .text-small,
.page-header p {
    font-size: 0.8125rem;
    color: var(--text-muted) !important;
    margin-top: 0.25rem;
}

/* --- Cards & Sections --- */
.search-filter-section,
.table-container,
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-xs);
}

.card-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    padding: 1rem 1.5rem;
    font-size: 0.9375rem;
    color: var(--text-primary);
}

/* --- Form Controls --- */
.form-label {
    font-weight: 500;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

.form-label.fw-bold {
    font-weight: 600 !important;
    color: var(--text-secondary);
    font-size: var(--text-base);
    letter-spacing: normal;
}

.form-control,
.form-select {
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    background-color: var(--bg-surface);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--bg-inset);
    border-color: var(--border-subtle);
    color: var(--text-muted);
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2364748B' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
}

.form-control-sm,
.form-select-sm {
    padding: 0.3125rem 0.625rem;
    font-size: var(--text-sm);
    border-radius: var(--radius-sm);
}

.form-select-sm {
    padding-right: 2rem;
}

.form-check-input {
    border: 1.5px solid var(--slate-300);
    border-radius: 0.25rem;
    transition: all var(--transition-fast);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
    border-color: var(--primary);
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.input-group .btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-muted);
}

.input-group .btn-outline-secondary:hover {
    background: var(--slate-100);
    color: var(--text-secondary);
    border-color: var(--slate-300);
}

/* --- Tables --- */
.table {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: rgba(79, 70, 229, 0.03);
    font-size: 0.8125rem;
}

.table thead th {
    background-color: var(--bg-inset);
    border-bottom: 1px solid var(--border-color);
    border-top: none;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.6875rem;
    letter-spacing: 0.06em;
    padding: 0.75rem 1rem;
    vertical-align: middle;
    white-space: nowrap;
}

.table tbody td {
    vertical-align: middle;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Subtle zebra striping */
.table-hover tbody tr:nth-child(even) {
    background-color: rgba(248, 250, 252, 0.5);
}

.table-hover tbody tr:hover {
    background-color: rgba(79, 70, 229, 0.03) !important;
}

/* Clickable table rows */
tr.clickable-row {
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

tr.clickable-row:hover {
    background-color: rgba(79, 70, 229, 0.04) !important;
}

tr.clickable-row:active {
    background-color: rgba(79, 70, 229, 0.06) !important;
}

/* --- Buttons --- */
.btn {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
    border-radius: var(--radius-md);
    padding: 0.4375rem 0.875rem;
    font-size: 0.8125rem;
    letter-spacing: -0.006em;
    transition: all var(--transition-fast);
    border: 1.5px solid transparent;
}

.btn-sm {
    padding: 0.3125rem 0.625rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: 0 1px 2px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.25);
    transform: translateY(-0.5px);
}

.btn-primary:active {
    background-color: var(--primary-800);
    transform: translateY(0);
}

.btn-success {
    background-color: var(--success);
    border-color: var(--success);
    box-shadow: 0 1px 2px rgba(16, 185, 129, 0.2);
}

.btn-success:hover {
    background-color: #059669;
    border-color: #059669;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.25);
    transform: translateY(-0.5px);
}

.btn-danger {
    background-color: var(--danger);
    border-color: var(--danger);
    box-shadow: 0 1px 2px rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background-color: #DC2626;
    border-color: #DC2626;
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.25);
    transform: translateY(-0.5px);
}

.btn-secondary {
    background-color: var(--slate-600);
    border-color: var(--slate-600);
}

.btn-secondary:hover {
    background-color: var(--slate-700);
    border-color: var(--slate-700);
}

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

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

.btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-secondary);
    background: var(--bg-surface);
}

.btn-outline-secondary:hover {
    background-color: var(--bg-inset);
    border-color: var(--slate-300);
    color: var(--text-primary);
}

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

.btn-outline-danger:hover {
    background-color: var(--danger);
    border-color: var(--danger);
    color: var(--text-inverse);
}

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

.btn-outline-success:hover {
    background-color: var(--success);
    border-color: var(--success);
    color: var(--text-inverse);
}

/* Action icon buttons */
.action-buttons {
    display: flex;
    gap: 0.375rem;
    justify-content: center;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1.5px solid transparent;
    transition: all var(--transition-fast);
    font-size: 0.75rem;
}

.btn-icon.view {
    color: var(--primary);
    background-color: var(--primary-light);
    border-color: transparent;
}

.btn-icon.view:hover {
    background-color: var(--primary);
    color: var(--text-inverse);
}

.btn-icon.edit {
    color: var(--warning-dark);
    background-color: var(--warning-light);
    border-color: transparent;
}

.btn-icon.edit:hover {
    background-color: var(--warning);
    color: var(--text-inverse);
}

.btn-icon.delete {
    color: var(--danger);
    background-color: var(--danger-light);
    border-color: transparent;
}

.btn-icon.delete:hover {
    background-color: var(--danger);
    color: var(--text-inverse);
}

/* --- Badges --- */
.badge {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: var(--radius-full);
    padding: 0.25em 0.625em;
    font-size: 0.6875rem;
}

.badge-zip {
    background-color: var(--slate-100);
    color: var(--slate-700);
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
    font-size: 0.8125em;
    font-weight: 600;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-sm);
    padding: 0.2em 0.5em;
}

/* --- Breadcrumbs --- */
.breadcrumb {
    font-size: 0.8125rem;
    font-weight: 500;
}

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

.breadcrumb-item.active {
    color: var(--text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--slate-300);
}

/* --- Alerts --- */
.alert {
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid;
    padding: 0.875rem 1.125rem;
}

.alert-success {
    background: var(--success-light);
    border-color: #A7F3D0;
    color: var(--success-dark);
}

.alert-danger {
    background: var(--danger-light);
    border-color: #FECACA;
    color: var(--danger-dark);
}

.alert-warning {
    background: var(--warning-light);
    border-color: #FDE68A;
    color: var(--warning-dark);
}

.alert-info {
    background: var(--info-light);
    border-color: #BFDBFE;
    color: var(--info-dark);
}

/* --- Pagination --- */
.pagination-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
}

.pagination-info {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.pagination-info strong {
    color: var(--text-primary);
    font-weight: 600;
}

.pagination {
    gap: 0.25rem;
}

.page-link {
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md) !important;
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.page-link:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-100);
    color: var(--primary);
}

.page-item.active .page-link {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: 0 1px 3px rgba(79, 70, 229, 0.3);
}

.page-item.disabled .page-link {
    color: var(--text-muted);
    background-color: var(--bg-inset);
    border-color: var(--border-subtle);
}

/* --- Data Detail Labels --- */
.data-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.25rem;
}

.data-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

/* --- Match Score Pill --- */
.score-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.score-pill i {
    font-size: 0.625rem;
}

.score-excellent { background: var(--success-light); color: var(--success-dark); }
.score-good { background: #CFFAFE; color: #155E75; }
.score-fair { background: var(--warning-light); color: var(--warning-dark); }
.score-poor { background: var(--danger-light); color: var(--danger-dark); }

/* --- Sortable Table Headers --- */
th.sort-header a {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

th.sort-header a:hover {
    color: var(--primary);
    text-decoration: none;
}

th.sort-header {
    cursor: pointer;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
}

.empty-state i {
    color: var(--slate-300) !important;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.empty-state h5 {
    color: var(--text-secondary);
    font-weight: 600;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* --- Modals --- */
.modal-content {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

.modal-header .modal-title {
    font-weight: 600;
    font-size: 1.0625rem;
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

/* --- Dropdowns --- */
.dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.375rem;
    font-size: 0.8125rem;
}

.dropdown-item {
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.dropdown-divider {
    border-color: var(--border-subtle);
    margin: 0.25rem 0;
}

/* --- Score Display --- */
.score-display {
    display: flex;
    justify-content: center;
}

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

.text-success {
    color: var(--success) !important;
}

.text-danger {
    color: var(--danger) !important;
}

.text-warning {
    color: var(--warning) !important;
}

.text-muted {
    color: var(--text-muted) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

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

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

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

.bg-secondary {
    background-color: var(--slate-500) !important;
}

.fw-semibold {
    font-weight: 600 !important;
}

/* --- Standardized Focus Ring --- */
:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    box-shadow: none;
}

/* --- Reduced Motion Preference --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* --- Skip Navigation Link --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    background: var(--primary);
    color: white;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    z-index: 9999;
    font-weight: 600;
    font-size: var(--text-base);
    text-decoration: none;
}
.skip-link:focus {
    top: var(--space-4);
    color: white;
}

/* --- Sticky Table Header --- */
.table-sticky thead {
    position: sticky;
    top: 0;
    z-index: 10;
}

/* --- Destructive Modal --- */
.modal-destructive .modal-header {
    background: var(--danger-light);
    border-bottom-color: #FECACA;
}
.modal-destructive .modal-title {
    color: var(--danger-dark);
}
.modal-destructive .modal-title i {
    color: var(--danger);
    margin-right: var(--space-2);
}

/* --- Loading Overlay --- */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    border-radius: inherit;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Skeleton loader for table rows */
.skeleton-row td {
    position: relative;
    overflow: hidden;
}

.skeleton-row td::after {
    content: '';
    display: block;
    height: 12px;
    background: var(--slate-100);
    border-radius: var(--radius-sm);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

@keyframes skeleton-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* --- Undo Toast --- */
.undo-toast {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    background: var(--slate-800);
    color: var(--text-inverse);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-base);
    font-weight: 500;
    z-index: 1060;
    animation: toast-in 0.3s ease-out;
}

.undo-toast__action {
    color: var(--primary-lighter);
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

.undo-toast__action:hover {
    color: white;
}

@keyframes toast-in {
    from { transform: translateX(-50%) translateY(20px); opacity: 0; }
    to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

/* --- Form Sections --- */
.form-section {
    margin-bottom: var(--space-8);
}

.form-section__title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--border-subtle);
}

/* Required field indicator */
.form-label.required::after {
    content: ' *';
    color: var(--danger);
    font-weight: 400;
}

/* --- Sticky Form Footer --- */
.form-actions-sticky {
    position: sticky;
    bottom: 0;
    background: var(--bg-surface);
    padding: var(--space-4) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--space-8);
    z-index: 10;
}

/* --- Compact Table Variant --- */
.table-compact tbody td {
    padding: 0.5rem 0.75rem;
}

/* --- Row Status Indicator (data-status) --- */
.table tbody tr[data-status] td:first-child {
    border-left: 3px solid transparent;
    padding-left: calc(1rem - 3px);
}
.table tbody tr[data-status="pending"] td:first-child    { border-left-color: var(--status-pending); }
.table tbody tr[data-status="approved"] td:first-child   { border-left-color: var(--status-approved); }
.table tbody tr[data-status="rejected"] td:first-child   { border-left-color: var(--status-rejected); }
.table tbody tr[data-status="running"] td:first-child    { border-left-color: var(--status-running); }
.table tbody tr[data-status="cancelled"] td:first-child  { border-left-color: var(--status-cancelled); }

/* --- Selected Table Row --- */
.table tbody tr.selected {
    background-color: rgba(79, 70, 229, 0.06);
}

/* --- Bulk Action Bar --- */
.bulk-action-bar {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-inset);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    transition: all var(--transition-fast);
}

.bulk-action-bar--active {
    background: var(--primary-light);
    border-color: var(--primary-100);
}

.bulk-action-bar .btn:disabled {
    opacity: 0.5;
    pointer-events: none;
}

.bulk-action-bar__count {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary);
    margin-left: var(--space-1);
}

.bulk-action-bar__separator {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 var(--space-2);
}

/* --- Login Split Layout --- */
.login-layout {
    display: grid;
    grid-template-columns: 1fr 480px;
    min-height: 100vh;
}

.login-brand {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-900) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    padding: var(--space-12);
    position: relative;
    overflow: hidden;
}

.login-brand::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 25% 25%, rgba(255,255,255,0.06) 0%, transparent 50%),
                       radial-gradient(circle at 75% 75%, rgba(255,255,255,0.04) 0%, transparent 50%);
}

.login-brand__content {
    position: relative;
    text-align: center;
    max-width: 400px;
}

.login-brand__content i {
    font-size: 3rem;
    margin-bottom: var(--space-6);
    display: block;
    opacity: 0.9;
}

.login-brand__content h1 {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: white;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-3);
}

.login-brand__content p {
    font-size: var(--text-md);
    color: rgba(255, 255, 255, 0.75);
    font-weight: 400;
    line-height: 1.6;
}

.login-form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    background: var(--bg-surface);
}

.login-form-panel .login-form-inner {
    width: 100%;
    max-width: 360px;
}

.login-form-panel .form-control {
    height: 48px;
    font-size: var(--text-md);
}

/* --- Provider Card Grid --- */
.provider-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--section-gap);
}

.provider-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-xs);
    transition: all var(--transition-base);
    position: relative;
}

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

.provider-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.provider-card__name {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.provider-card__name i {
    color: var(--primary);
}

.provider-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-subtle);
}

.provider-card__meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.provider-card__meta-item strong {
    color: var(--text-secondary);
}

.provider-card__actions {
    display: flex;
    gap: var(--space-2);
}

/* --- Auto-Refresh Countdown (fixed pill, bottom-right) --- */
.auto-refresh-bar {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 1050;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3) var(--space-2) var(--space-4);
    background: var(--slate-800);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    color: var(--text-inverse);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toast-in 0.3s ease-out;
}

.auto-refresh-bar i.fa-sync-alt {
    font-size: 0.625rem;
    opacity: 0.6;
}

.auto-refresh-bar__text {
    white-space: nowrap;
}

.auto-refresh-bar__text strong {
    color: var(--primary-lighter);
    font-weight: 700;
    display: inline-block;
    min-width: 1.25em;
    text-align: right;
}

.auto-refresh-bar__progress {
    width: 40px;
    height: 3px;
    background: var(--slate-600);
    border-radius: 2px;
    overflow: hidden;
}

.auto-refresh-bar__fill {
    height: 100%;
    background: var(--primary-lighter);
    border-radius: 2px;
    transition: width 1s linear;
}

.auto-refresh-bar button {
    background: transparent;
    border: 1px solid var(--slate-600);
    color: var(--slate-300);
    border-radius: var(--radius-full);
    padding: 0.125rem 0.5rem;
    font-size: var(--text-xs);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
    line-height: 1.4;
}

.auto-refresh-bar button:hover {
    background: var(--slate-700);
    color: var(--text-inverse);
    border-color: var(--slate-500);
}

/* --- Password Strength --- */
.password-strength {
    margin-top: var(--space-2);
}

.password-strength__bar {
    height: 4px;
    border-radius: 2px;
    background: var(--slate-200);
    overflow: hidden;
    margin-bottom: var(--space-2);
}

.password-strength__fill {
    height: 100%;
    border-radius: 2px;
    transition: width var(--transition-base), background-color var(--transition-base);
}

.password-strength__fill--weak { width: 33%; background: var(--danger); }
.password-strength__fill--medium { width: 66%; background: var(--warning); }
.password-strength__fill--strong { width: 100%; background: var(--success); }

.password-strength__label {
    font-size: var(--text-xs);
    font-weight: 600;
}

.password-strength__label--weak { color: var(--danger); }
.password-strength__label--medium { color: var(--warning-dark); }
.password-strength__label--strong { color: var(--success-dark); }

.password-requirements {
    list-style: none;
    padding: 0;
    margin: var(--space-2) 0 0;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.password-requirements li {
    padding: 2px 0;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.password-requirements li.met {
    color: var(--success-dark);
}

.password-requirements li.met i {
    color: var(--success);
}

/* --- Inline Reject Reason --- */
.inline-reject {
    background: var(--danger-light);
    border: 1px solid #FECACA;
    border-radius: var(--radius-md);
    padding: var(--space-4);
    margin-top: var(--space-3);
    animation: toast-in 0.2s ease-out;
}

.inline-reject__label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--danger-dark);
    margin-bottom: var(--space-2);
}

/* --- Keyboard Focus Row --- */
.table tbody tr.keyboard-focus {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
    background-color: rgba(79, 70, 229, 0.04);
}

/* --- Navbar Toggler (mobile) --- */
.navbar-toggler {
    border: 1.5px solid var(--border-color);
    padding: 0.25rem 0.5rem;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.navbar-toggler:focus {
    box-shadow: var(--focus-ring);
}

/* --- Login Brand Mobile --- */
.login-brand-mobile {
    display: none;
    text-align: center;
    margin-bottom: var(--space-6);
    color: var(--primary);
}

.login-brand-mobile i {
    font-size: 2rem;
    margin-bottom: var(--space-2);
    display: block;
}

.login-brand-mobile__title {
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    margin-bottom: var(--space-1);
}

.login-brand-mobile p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: 0;
}

/* --- Site Footer --- */
.site-footer {
    text-align: center;
    padding: var(--space-6) 0;
    margin-top: var(--space-8);
    border-top: 1px solid var(--border-color);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* --- Responsive --- */
@media (max-width: 767.98px) {
    /* Navbar collapsed state */
    .navbar .navbar-collapse .navbar-nav .nav-link {
        border-bottom: none;
        border-left: 2px solid transparent;
        margin-bottom: 0;
        padding: 0.625rem 0.875rem !important;
    }
    .navbar .navbar-collapse .navbar-nav .nav-link.active {
        border-left-color: var(--primary);
        border-bottom-color: transparent;
    }
    .navbar .navbar-collapse .navbar-nav .nav-link:hover {
        border-bottom-color: transparent;
        border-left-color: var(--slate-300);
    }
    .navbar .navbar-collapse {
        padding: var(--space-2) 0;
        border-top: 1px solid var(--border-color);
        margin-top: var(--space-2);
    }
    .navbar .navbar-collapse .navbar-nav:last-child {
        padding-top: var(--space-2);
        border-top: 1px solid var(--border-subtle);
        margin-top: var(--space-2);
    }
}

@media (max-width: 768px) {
    .action-buttons {
        justify-content: flex-start;
    }
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: 1.25rem;
    }
    .search-filter-section .row > div {
        margin-bottom: 0.75rem;
    }
    .pagination-wrapper {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
    .login-layout {
        grid-template-columns: 1fr;
    }
    .login-brand {
        display: none;
    }
    .login-brand-mobile {
        display: block;
    }
    .login-form-panel {
        padding: var(--space-6);
    }
    .provider-grid {
        grid-template-columns: 1fr;
    }
    .bulk-action-bar {
        flex-wrap: wrap;
    }
    /* Table density on mobile */
    .table thead th {
        padding: 0.5rem 0.625rem;
        font-size: 0.625rem;
    }
    .table tbody td {
        padding: 0.5rem 0.625rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .page-header .d-flex {
        flex-direction: column;
        width: 100%;
    }
    .page-header .d-flex .btn {
        width: 100%;
    }
}