/* SPI Trail Design System - CSS Variables & Base Styles */
/* Based on Web Design Brief principles for maintainable, accessible design */

:root {
    /* Base Units */
    --spacing-unit: 0.25rem; /* 4px base unit */
    
    /* Color Tokens */
    --color-primary: #007bff;
    --color-primary-hover: #0056b3;
    --color-primary-focus: #004085;
    --color-primary-light: rgba(0, 123, 255, 0.25);
    --color-primary-lightest: rgba(0, 123, 255, 0.1);
    --color-primary-dark: #004085;
    
    --color-secondary: #6c757d;
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;
    
    /* Text Colors */
    --color-text: #333333;
    --color-text-muted: #6c757d;
    --color-text-light/* Danger Modal Header */
.modal-header.modal-header-danger {
    background-color: var(--color-danger-light);
    border-bottom: 2px solid var(--color-danger);
}

.modal-header.modal-header-danger .modal-title {
    color: var(--color-danger-dark);
}

/* ============================================================================
   SELECT2 INTEGRATION
   ========================================================================== */

/* Select2 Base Styling - Global */
.select2-container--default .select2-selection--single {
    border: 1px solid var(--color-border, #dee2e6);
    border-radius: var(--border-radius-md, 0.375rem) !important;
    height: calc(2.25rem + 5px) !important;
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    background-color: white !important;
    transition: all var(--transition-standard, 0.2s ease-in-out);
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--color-text, #333333) !important;
    line-height: 1.75 !important;
    padding-left: 0 !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: calc(2.25rem) !important;
}

.select2-container--default.select2-container--focus .select2-selection--single {
    border-color: var(--color-primary, #007bff) !important;
    box-shadow: 0 0 0 0.125rem var(--color-primary-light, rgba(0, 123, 255, 0.25)) !important;
}

/* Select2 Dropdown */
.select2-dropdown {
    border: 1px solid var(--color-border, #dee2e6);
    border-radius: var(--border-radius-md, 0.375rem);
    box-shadow: var(--shadow-md, 0 4px 6px rgba(0,0,0,0.1));
}

/* ============================================================================
   ACCESSIBILITY ENHANCEMENTS
   ========================================================================== */

/* Focus Visible States */
.form-control:focus-visible,
.form-select:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--color-primary, #007bff);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .form-control,
    .form-select {
        border-width: 2px;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .form-control,
    .form-select,
    .btn,
    .card,
    .modal-content {
        transition: none !important;
    }
    
    .btn:hover {
        transform: none !important;
    }
}

/* ============================================================================
   RESPONSIVE MODAL DESIGN
   ========================================================================== */

/* Mobile Modal Improvements */
@media (max-width: 768px) {
    .modal-dialog {
        margin: var(--spacing-md, 1rem);
    }
    
    .modal-body {
        max-height: 60vh;
        overflow-y: auto;
    }
    
    .form-control,
    .form-select {
        font-size: 1rem !important; /* Prevent iOS zoom on focus */
    }
}

/* ============================================================================
   SELECT2 MODAL ISOLATION (CRITICAL)
   ========================================================================== */   
    /* Background Colors */
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-bg-dark: #343a40;
    
    /* Border Colors */
    --color-border: #dee2e6;
    --color-border-light: #e9ecef;
    
    /* Calculated Spacing Scale (using mathematical relationships) */
    --spacing-xs: calc(var(--spacing-unit) * 1);   /* 4px */
    --spacing-sm: calc(var(--spacing-unit) * 2);   /* 8px */
    --spacing-md: calc(var(--spacing-unit) * 4);   /* 16px */
    --spacing-lg: calc(var(--spacing-unit) * 6);   /* 24px */
    --spacing-xl: calc(var(--spacing-unit) * 8);   /* 32px */
    --spacing-2xl: calc(var(--spacing-unit) * 12); /* 48px */
    
    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem; 
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --line-height-base: 1.6;
    --letter-spacing-uppercase: 0.1em;
    --bs-nav-link-font-size: 0.75rem;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 25px 50px rgba(0,0,0,0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-standard: 0.2s ease-in-out;
    --transition-slow: 0.3s ease-in-out;
}

/* Base Styles - Global Foundation */
* { 
    box-sizing: border-box; 
}

html, body {
    height: 100%;
    margin: 0;
    scroll-behavior: smooth;
}

body { 
    font-family: var(--font-family-base); 
    font-size: 14px; 
    line-height: var(--line-height-base); 
    color: var(--color-text); 
    background-color: var(--color-bg); 
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

table {
    margin-bottom: 0 !important;
}

/* Typography Scale */
h1 { 
    font-size: 1.75rem !important; 
    line-height: 1.2; 
    margin-bottom: var(--spacing-lg); 
    font-weight: 600; 
}

h2 { 
    font-size: 1.5rem !important; 
    line-height: 1.3; 
    margin-bottom: var(--spacing-md); 
    font-weight: 600; 
}

h3 { 
    font-size: 1.25rem !important; 
    line-height: 1.3; 
    margin-bottom: var(--spacing-md); 
    font-weight: 600; 
}

h4, h5, .h4, .h5 {
    font-size: 1rem !important;
}



/* Pagination */
.pagination-container {
    padding: var(--spacing-lg);
    display: flex;
    justify-content: center;
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-gray-25);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .action-buttons {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

.management {
    background-color: var(--color-background);
}

@media (max-width: 992px) {
    .management {
        padding: var(--spacing-md);
    }
}

/* Page Header */
.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.page-title i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.page-title h1 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

/* Focus Styles */
*:focus { 
    outline: 2px solid var(--color-primary); 
    outline-offset: 2px; 
}

.links small {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-right: var(--spacing-sm);
}

/* ============================================================================
   BUTTON COMPONENTS
   ========================================================================== */

.btn-close[data-bs-theme="dark"] {
    /* This is how Bootstrap applies the dark theme internally */
    filter: invert(1) grayscale(100%) brightness(200%) !important;
}

.btn { 
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    border: 1px solid transparent !important; 
    cursor: pointer; 
    transition: all var(--transition-standard, 0.2s ease-in-out);
    border-radius: var(--border-radius-md, 0.375rem);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
}

.btn:disabled { 
    opacity: 0.65 !important; 
    cursor: not-allowed !important;
    pointer-events: none;
}

/* Primary Button - Modern Gradient Design */
.btn-primary { 
    background: linear-gradient(135deg, var(--color-primary, #007bff) 0%, var(--color-primary-focus, #004085) 100%);
    border-color: var(--color-primary, #007bff);
    color: var(--color-text-light, white) !important;
    box-shadow: var(--shadow-sm, 0 1px 2px rgba(0,0,0,0.05));
}

.btn-primary:hover:not(:disabled) { 
    background: linear-gradient(135deg, var(--color-primary-hover, #0056b3) 0%, var(--color-primary-dark, #004085) 100%);
    border-color: var(--color-primary-hover, #0056b3);
    color: var(--color-text-light, white) !important;
    transform: translateY(-0.0625rem);
    box-shadow: var(--shadow-md, 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06));
}

.btn-primary:focus { 
    box-shadow: 0 0 0 0.125rem var(--color-primary-light, rgba(0, 123, 255, 0.25)); 
}

.btn-primary:disabled {
    background: var(--color-secondary, #6c757d) !important;
    color: var(--color-text-light, white) !important;
    border-color: var(--color-secondary, #6c757d);
    box-shadow: none;
    transform: none;
}

/* Secondary Button */
.btn-secondary { 
    background: var(--color-bg-light, #f8f9fa);
    border-color: var(--color-border, #dee2e6);
    color: var(--color-text, #333333) !important;
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border-light, #e9ecef);
    border-color: var(--color-border, #dee2e6);
    color: var(--color-text, #333333) !important;
    transform: translateY(-0.0625rem);
}

/* Sort Button - Used in table headers */
.btn-sort {
    background: none;
    border: none;
    color: var(--color-text);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: all 0.2s ease;
    font-size: var(--font-size-sm);
}

.btn-sort:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.btn-sort .sort-icon {
    font-size: 0.75rem;
}

/* ============================================================================
   FORM COMPONENTS
   ========================================================================== */

.form-control, .form-select { 
    width: 100%; 
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem); 
    font-size: 0.9rem;
    line-height: var(--line-height-base, 1.6); 
    color: var(--color-text, #333333) !important; 
    background: white !important; 
    border: 1px solid var(--color-border, #dee2e6) !important; 
    border-radius: var(--border-radius-md, 0.375rem); 
    transition: all var(--transition-standard, 0.2s ease-in-out); 
}

.form-control:focus, .form-select:focus { 
    border-color: var(--color-primary, #007bff) !important; 
    box-shadow: 0 0 0 0.125rem var(--color-primary-light, rgba(0, 123, 255, 0.25)) !important; 
    outline: none !important; 
    background: white !important;
}

/* Disabled State for Form Controls */
.form-control:disabled, .form-select:disabled { 
    background-color: var(--color-bg-light, #f8f9fa) !important;
    border-color: var(--color-border-light, #e9ecef) !important;
    color: var(--color-text-muted, #6c757d) !important;
    cursor: not-allowed;
    opacity: 0.7;
}

/* Invalid State */
.is-invalid .select2-selection--single, .is-invalid .form-control, .is-invalid .form-select, .form-control.is-invalid, .form-select.is-invalid { 
    border-color: var(--color-danger, #dc3545) !important;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 3.6.7.4.7-.4M6 7.5v.5'/%3e%3c/svg%3e") !important;
    background-repeat: no-repeat !important;
    background-position: left var(--spacing-sm, 0.5rem) center !important;
    padding-left: 30px !important;
    background-size: 1rem 1rem !important;
}

.is-invalid:focus { 
    box-shadow: 0 0 0 0.125rem rgba(220,53,69,.25) !important; 
}

/* Form Labels */
.form-label {
    margin-bottom: var(--spacing-xs, 0.25rem);
    font-weight: 500;
    color: var(--color-text, #333333) !important;
    font-size: 0.9rem;
}

.form-label .text-danger {
    color: var(--color-danger, #dc3545) !important;
}

/* Invalid Feedback */
.invalid-feedback {
    display: block !important;
    margin-top: var(--spacing-xs, 0.25rem);
    font-size: 0.8rem;
    color: var(--color-danger, #dc3545) !important;
}

/* Dashboard Components */
.dashboard-stats { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: var(--spacing-md); 
    margin-bottom: var(--spacing-lg); 
}

.stat-card { 
    background: var(--color-bg); 
    border: 1px solid var(--color-border-light); 
    border-radius: var(--border-radius-md); 
    padding: var(--spacing-lg); 
    box-shadow: var(--shadow-sm); 
    transition: var(--transition-standard); 
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-card:hover { 
    box-shadow: var(--shadow-md); 
    transform: translateY(-2px); 
    border-color: var(--color-primary-light);
}

.stat-card.loading {
    opacity: 0.7;
    pointer-events: none;
}

.stat-value { 
    font-size: 1.75rem; 
    font-weight: 700; 
    color: var(--color-primary); 
    margin-bottom: var(--spacing-xs); 
    line-height: 1.1;
}

.stat-label { 
    font-size: var(--font-size-sm); 
    color: var(--color-text-muted); 
    text-transform: uppercase; 
    letter-spacing: var(--letter-spacing-uppercase); 
    font-weight: 500;
}

/* Table Components */
.table-container {
    position: relative;
    background-color: var(--color-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    min-height: 131px;
}

.table-responsive { 
    box-shadow: var(--shadow-sm); 
    border-radius: var(--border-radius-md); 
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    overflow-x: hidden;
}

.table-responsive:hover {
    box-shadow: var(--shadow-md);
    overflow-x: auto;
}

.table th {
    background-color: var(--color-bg-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-uppercase);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.table td {
    padding: var(--spacing-md);
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border-light);
}

/* App Header Component */
.app-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
}

.user-info {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Loading Overlay - Reusing existing pattern */
.loading-overlay {
    position: absolute;
    top: 0px;
    left: 0;
    right: 0;
    bottom: 0;
    padding-top: 25px;
    background-color: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(2px);
}

.loading-spinner {
    text-align: center;
}

.loading-spinner .spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3rem;
    color: var(--color-primary);
}

.loading-spinner p {
    margin-top: var(--spacing-md);
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Utility Classes */
.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-primary); }
.bg-light { background-color: var(--color-bg-light); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.rounded { border-radius: var(--border-radius-md); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.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='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e"); background-repeat:no-repeat; background-position:right .75rem center; background-size:16px 12px; padding-right:2.25rem; }
.form-label { margin-bottom:var(--spacing-xs); font-weight:500; color:var(--color-text); }
.invalid-feedback { margin-top:var(--spacing-xs); font-size:.875rem; color:var(--color-danger); }
.alert { position:relative; padding:var(--spacing-md); margin-bottom:var(--spacing-md); border:1px solid transparent; border-radius:var(--border-radius-md); }
.alert-success { color:#0f5132; background:#d1e7dd; border-color:#badbcc; }
.alert-danger { color:#842029; background:#f8d7da; border-color:#f5c2c7; }
.spinner-border { width:2rem; height:2rem; border:.25em solid currentColor; border-right-color:transparent; border-radius:50%; animation:spinner-border .75s linear infinite; }
.spinner-border-sm { width:1rem; height:1rem; border-width:.2em; }
@keyframes spinner-border { to { transform: rotate(360deg); } }
.text-center { text-align:center; } .text-muted { color:var(--color-text-muted); }
.mb-0{margin-bottom:0}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}
.mt-0{margin-top:0}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}
.container { max-width:1200px; margin:0 auto; padding:0 var(--spacing-md); }
.card { background:var(--color-bg); border:1px solid var(--color-border-light); border-radius:var(--border-radius-md); box-shadow:var(--shadow-sm); overflow:hidden; transition:var(--transition-base); }
.card:hover { box-shadow:var(--shadow-md); }
.card-body { padding:var(--spacing-lg); }
.grid-container { display:grid; grid-template-columns:repeat(12,1fr); gap:var(--spacing-md); }
@media (max-width:768px){ .grid-container{grid-template-columns:1fr; gap:var(--spacing-sm);} h1{font-size:2rem;} h2{font-size:1.75rem;} h3{font-size:1.25rem;} }
.alert-warning { background:#fff3cd; border-color:#ffeaa7; color:#856404; }
.alert-info { background:#cce7ff; border-color:#b3d9ff; color:#004085; }
.radius-md { border-radius:var(--border-radius-md)!important; }
.radius-lg { border-radius:var(--border-radius-lg)!important; }
.password-mask { -webkit-text-security:disc; }
.btn-lg-primary-action { font-weight:600; padding:.875rem 1.5rem; transition:var(--transition-base); }

/* Status Badge - for user status, etc. */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 9999px; /* --border-radius-full */
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-active {
    background-color: var(--color-success-light, #d1e7dd);
    color: var(--color-success-dark, #0f5132);
}

.status-inactive {
    background-color: var(--color-gray-100, #f8f9fa);
    color: var(--color-text-secondary, #6c757d);
}



.btn-close:active {
    transform: scale(0.85);
}

.btn-close:focus {
	outline: 0;
	box-shadow: none;
}

/* Generic Management Page Styles */
.management-content {
    background-color: var(--color-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
}

/* ============================================================================
   MODAL COMPONENTS
   ========================================================================== */

/* Modal Content Container */
.modal-content {
    border: 1px solid var(--color-border, #dee2e6);
    border-radius: var(--border-radius-lg, 0.75rem);
    box-shadow: var(--shadow-xl, 0 25px 50px rgba(0,0,0,0.25));
    background-color: var(--color-bg, white);
}

/* Modal Header - Default (Light) */
.modal-header {
    background-color: var(--color-bg-light, #f8f9fa);
    border-bottom: 1px solid var(--color-border, #dee2e6);
    padding: var(--spacing-lg, 1.5rem) var(--spacing-xl, 2rem);
    border-top-left-radius: var(--border-radius-lg, 0.75rem);
    border-top-right-radius: var(--border-radius-lg, 0.75rem);
}

/* Modal Header - Primary (Gradient) */
.modal-header-primary {
    background: linear-gradient(135deg, var(--color-primary, #007bff) 0%, var(--color-primary-focus, #004085) 100%);
    border-bottom: none;
}

.modal-header-primary .modal-title {
    color: white !important;
}

.modal-header-primary .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: opacity var(--transition-standard, 0.2s ease-in-out);
}

.modal-header-primary .btn-close:hover {
    opacity: 1;
}

/* Modal Header - Danger */
.modal-header-danger {
    background-color: rgba(220, 53, 69, 0.1);
    border-bottom: 2px solid var(--color-danger, #dc3545);
}

.modal-header-danger .modal-title {
    color: var(--color-danger-dark, #842029);
}

/* Modal Title */
.modal-title {
    font-size: var(--font-size-xl, 1.25rem);
    font-weight: 600;
    color: var(--color-text, #333333);
    display: flex;
    align-items: center;
}

.modal-title i {
    margin-right: var(--spacing-sm, 0.5rem);
}

/* Modal Body */
.modal-body {
    padding: var(--spacing-xl, 2rem);
    background-color: rgba(255, 255, 255, 0.98);
}

/* Modal Footer */
.modal-footer {
    background-color: var(--color-bg-light, #f8f9fa);
    border-top: 1px solid var(--color-border-light, #e9ecef);
    padding: var(--spacing-lg, 1.5rem) var(--spacing-xl, 2rem);
    border-bottom-left-radius: var(--border-radius-lg, 0.75rem);
    border-bottom-right-radius: var(--border-radius-lg, 0.75rem);
}

/* Modal Close Button */
.modal-header .btn-close {
    filter: none;
}

/* Search Controls */
.search-container {
    max-width: 600px;
    position: relative;
    flex: 1 1 300px; /* Flex properties for responsiveness */
}

.search-input-wrapper {
    position: relative;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) calc(var(--spacing-md) * 2.5);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    background-color: var(--color-bg);
    color: var(--color-text);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.search-clear {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    transition: var(--transition-fast);
}

.search-clear:hover {
    color: var(--color-danger);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    color: var(--color-text-muted);
}

.empty-state i {
    font-size: 4rem;
    opacity: 0.5;
    margin-bottom: var(--spacing-md);
}

.empty-state h5 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.empty-state p {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
}

/* Generic Modal Styles */
.modal-content {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    background-color: var(--color-bg);
}

.modal-header {
    background-color: var(--color-bg-light);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    align-items: center;
}

.modal-title i {
    color: var(--color-primary);
    margin-right: var(--spacing-sm);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom-left-radius: var(--border-radius-lg);
    border-bottom-right-radius: var(--border-radius-lg);
}

/* Danger Modal Header */
.modal-header.modal-header-danger {
    background-color: var(--color-danger-light);
    border-bottom: 2px solid var(--color-danger);
}

.modal-header.modal-header-danger .modal-title {
    color: var(--color-danger-dark);
}

/* ============================================================================
   SELECT2 MODAL ISOLATION
   ============================================================================
   Prevents Select2 dropdowns outside modals from appearing focused/highlighted
   when a modal is open. Addresses z-index and focus bleeding issues.
   
   Bootstrap 5 adds .modal-open class to <body> when any modal is displayed.
   We use this to suppress visual appearance of Select2 instances that are
   NOT inside the active modal.
   ========================================================================== */

/* Suppress Select2 containers outside modal - make them visually recede */
.modal-open .select2-container:not(.select2-container--open) {
    opacity: 0.5 !important;
    pointer-events: none !important;
    filter: grayscale(50%);
}

/* Override: Ensure Select2 dropdowns INSIDE modals remain fully functional */
.modal-open .modal .select2-container {
    opacity: 1 !important;
    pointer-events: auto !important;
    filter: none !important;
}

/* Force Select2 dropdown menus to correct z-index stacking */
.select2-container--open {
    z-index: 1050 !important; /* Below Bootstrap modal backdrop (1055) */
}

/* Select2 dropdowns inside modal should be above modal content but below dialog */
.modal .select2-container--open {
    z-index: 1060 !important; /* Above modal backdrop, accessible within modal */
}