/**
 * Veranstaltungsabrechnung - Main Stylesheet
 * 
 * @author Graup-IT
 * @email info@graup-it.de
 * @web https://www.graup-it.de
 */

:root {
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --top-nav-height: 60px;
    --footer-height: 50px;
    --transition-speed: 0.3s;
}

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

html {
    background-color: #e2e6ea;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f4f6f9;
    min-height: 100vh;
    max-width: 1920px;
    margin: 0 auto;
    position: relative;
}

@media (min-width: 1921px) {
    body {
        box-shadow: 0 0 30px rgba(0,0,0,0.15);
    }
}

a {
    color: var(--va-primary, #0d6efd);
    text-decoration: none;
}

a:hover {
    color: var(--va-primary, #0d6efd);
    text-decoration: underline;
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: max(0px, calc((100vw - 1920px) / 2));
    bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-speed) ease;
}

.sidebar-header {
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.sidebar-brand:hover {
    color: #fff;
    text-decoration: none;
}

.sidebar-brand i {
    font-size: 1.5rem;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.sidebar-nav .nav-link {
    color: rgba(255,255,255,0.8);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
    text-decoration: none;
}

.sidebar-nav .nav-link.active {
    color: #fff;
    background: rgba(0,0,0,0.1);
    border-left: 3px solid #fff;
    font-weight: 600;
}

.sidebar-nav .nav-link i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.nav-section {
    padding: 1.5rem 1.25rem 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255,255,255,0.5);
}

.sidebar-footer {
    padding: 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: auto;
}

.sidebar-user-menu {
    padding: 0;
}

.user-info-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: rgba(0,0,0,0.1);
}

.user-info-header i {
    font-size: 2rem;
    opacity: 0.9;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 500;
    font-size: 0.9rem;
}

.user-role {
    font-size: 0.75rem;
    opacity: 0.7;
}

.user-nav {
    padding: 0.5rem 0;
}

.user-nav .nav-link {
    color: rgba(255,255,255,0.8);
    padding: 0.6rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    font-size: 0.9rem;
}

.user-nav .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
    text-decoration: none;
}

.user-nav .nav-link.active {
    color: #fff;
    background: rgba(255,255,255,0.2);
    border-left: 3px solid #fff;
    font-weight: 600;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08);
}

.user-nav .nav-link i {
    font-size: 1rem;
    width: 24px;
    text-align: center;
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-speed) ease;
}

.top-nav {
    height: var(--top-nav-height);
    background: #fff;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1020;
}

.top-nav .sidebar-toggle {
    color: var(--va-primary, #0d6efd);
}

.top-nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.top-nav-right .btn-link {
    color: #6c757d;
    text-decoration: none;
}

.top-nav-right .dropdown-toggle::after {
    vertical-align: middle;
    margin-left: 0.35rem;
    color: #6c757d;
}

.top-nav-right .dropdown-toggle:focus {
    box-shadow: none;
}

.content-wrapper {
    flex: 1;
    padding: 1.5rem;
}

.main-footer {
    height: var(--footer-height);
    background: #fff;
    border-top: 1px solid #dee2e6;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    font-size: 0.85rem;
    color: #6c757d;
}

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

.card-header {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 1rem 1.25rem;
}

.stat-card {
    border-radius: 0.75rem;
    overflow: hidden;
}

.stat-card .card-body {
    padding: 1.5rem;
}

.stat-card .card-footer {
    padding: 0.75rem 1.5rem;
}

/* ============================================
   Tables
   ============================================ */
.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    white-space: nowrap;
}

.table-responsive {
    border-radius: 0 0 0.5rem 0.5rem;
}

/* ============================================
   Forms
   ============================================ */
.form-label {
    font-weight: 500;
    margin-bottom: 0.375rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--va-primary, #0d6efd);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.required::after {
    content: ' *';
    color: #dc3545;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    font-weight: 500;
}

.btn-primary {
    background-color: var(--va-primary, #0d6efd);
    border-color: var(--va-primary, #0d6efd);
}

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

/* ============================================
   Badges
   ============================================ */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
}

/* ============================================
   Mobile Responsive
   ============================================ */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1035;
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-overlay.show {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-wrapper {
        padding: 1rem;
    }
}

/* ============================================
   Utilities
   ============================================ */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cursor-pointer {
    cursor: pointer;
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ============================================
   Data Tables
   ============================================ */
.datatable-search input {
    border-radius: 0.375rem;
}

.datatable-pagination .datatable-pagination-list-item-link {
    border-radius: 0.25rem;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .sidebar,
    .top-nav,
    .main-footer,
    .btn,
    .no-print {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-wrapper {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #dee2e6;
    }
}

/* ============================================
   Login Page
   ============================================ */
body.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, var(--va-primary, #0d6efd) 0%, #1e3c72 100%);
    color: #fff;
    padding: 2rem;
    text-align: center;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.login-body {
    padding: 2rem;
}

@media (max-width: 479.98px) {
    body.login-page {
        padding: 1rem 0.75rem;
        align-items: flex-start;
        padding-top: 2rem;
    }

    .login-card {
        border-radius: 0.75rem;
    }

    .login-header {
        padding: 1.5rem 1.25rem;
    }

    .login-header h1 {
        font-size: 1.25rem;
    }

    .login-body {
        padding: 1.5rem 1.25rem;
    }

    .login-footer {
        padding: 0.75rem 1rem;
    }
}

.login-body .form-floating > label {
    color: var(--va-secondary, #6c757d);
}

.btn-login {
    background: var(--va-primary, #0d6efd);
    border-color: var(--va-primary, #0d6efd);
    padding: 0.75rem;
    font-weight: 600;
}

.btn-login:hover {
    background: color-mix(in srgb, var(--va-primary, #0d6efd) 85%, black);
    border-color: color-mix(in srgb, var(--va-primary, #0d6efd) 85%, black);
}

.login-footer {
    background: #f8f9fa;
    padding: 1rem;
    text-align: center;
    font-size: 0.8rem;
    color: #6c757d;
}

.login-footer a {
    color: #6c757d;
}

.password-toggle {
    cursor: pointer;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--va-secondary, #6c757d);
}

/* ============================================
   404 Error Page
   ============================================ */
body.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.error-container {
    text-align: center;
    color: #fff;
}

.error-code {
    font-size: 8rem;
    font-weight: 700;
    line-height: 1;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.error-message {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

/* ============================================
   Dynamic Color Overrides (via CSS variables)
   ============================================ */
.btn-primary {
    background-color: var(--va-primary);
    border-color: var(--va-primary);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: color-mix(in srgb, var(--va-primary) 85%, black);
    border-color: color-mix(in srgb, var(--va-primary) 85%, black);
}
.btn-outline-primary {
    color: var(--va-primary);
    border-color: var(--va-primary);
}
.btn-outline-primary:hover {
    background-color: var(--va-primary);
    border-color: var(--va-primary);
}
.bg-primary {
    background-color: var(--va-primary) !important;
}
.text-primary {
    color: var(--va-primary) !important;
}
.border-primary {
    border-color: var(--va-primary) !important;
}
a {
    color: var(--va-primary);
}
a:hover {
    color: color-mix(in srgb, var(--va-primary) 75%, black);
}
.form-check-input:checked {
    background-color: var(--va-primary);
    border-color: var(--va-primary);
}
.form-control:focus, .form-select:focus {
    border-color: var(--va-primary);
    box-shadow: 0 0 0 0.25rem rgba(var(--bs-primary-rgb), 0.25);
}
.main-content .nav-link.active {
    color: var(--va-primary) !important;
}
.page-link {
    color: var(--va-primary);
}
.page-item.active .page-link {
    background-color: var(--va-primary);
    border-color: var(--va-primary);
}
.progress-bar {
    background-color: var(--va-primary);
}
.badge.bg-primary {
    background-color: var(--va-primary) !important;
}
.alert-primary {
    background-color: rgba(var(--bs-primary-rgb), 0.15);
    border-color: rgba(var(--bs-primary-rgb), 0.3);
    color: var(--va-primary);
}
.list-group-item.active {
    background-color: var(--va-primary);
    border-color: var(--va-primary);
}
.dropdown-item.active, .dropdown-item:active {
    background-color: var(--va-primary);
}
/* Secondary */
.btn-secondary {
    background-color: var(--va-secondary);
    border-color: var(--va-secondary);
}
.btn-secondary:hover, .btn-secondary:focus {
    background-color: color-mix(in srgb, var(--va-secondary) 85%, black);
    border-color: color-mix(in srgb, var(--va-secondary) 85%, black);
}
.bg-secondary {
    background-color: var(--va-secondary) !important;
}
.badge.bg-secondary {
    background-color: var(--va-secondary) !important;
}

/* Success */
.btn-success {
    background-color: var(--va-success);
    border-color: var(--va-success);
}
.btn-success:hover, .btn-success:focus {
    background-color: color-mix(in srgb, var(--va-success) 85%, black);
    border-color: color-mix(in srgb, var(--va-success) 85%, black);
}
.bg-success {
    background-color: var(--va-success) !important;
}
.text-success {
    color: var(--va-success) !important;
}
.badge.bg-success {
    background-color: var(--va-success) !important;
}
.alert-success {
    background-color: rgba(var(--bs-success-rgb), 0.15);
    border-color: rgba(var(--bs-success-rgb), 0.3);
    color: var(--va-success);
}

/* Danger */
.btn-danger {
    background-color: var(--va-danger);
    border-color: var(--va-danger);
}
.btn-danger:hover, .btn-danger:focus {
    background-color: color-mix(in srgb, var(--va-danger) 85%, black);
    border-color: color-mix(in srgb, var(--va-danger) 85%, black);
}
.btn-outline-danger {
    color: var(--va-danger);
    border-color: var(--va-danger);
}
.btn-outline-danger:hover {
    background-color: var(--va-danger);
    border-color: var(--va-danger);
}
.bg-danger {
    background-color: var(--va-danger) !important;
}
.text-danger {
    color: var(--va-danger) !important;
}
.badge.bg-danger {
    background-color: var(--va-danger) !important;
}
.alert-danger {
    background-color: rgba(var(--bs-danger-rgb), 0.15);
    border-color: rgba(var(--bs-danger-rgb), 0.3);
    color: var(--va-danger);
}

/* Warning */
.btn-warning {
    background-color: var(--va-warning);
    border-color: var(--va-warning);
}
.btn-warning:hover, .btn-warning:focus {
    background-color: color-mix(in srgb, var(--va-warning) 85%, black);
    border-color: color-mix(in srgb, var(--va-warning) 85%, black);
}
.bg-warning {
    background-color: var(--va-warning) !important;
}
.text-warning {
    color: var(--va-warning) !important;
}
.badge.bg-warning {
    background-color: var(--va-warning) !important;
}
.alert-warning {
    background-color: rgba(var(--bs-warning-rgb), 0.15);
    border-color: rgba(var(--bs-warning-rgb), 0.3);
    color: color-mix(in srgb, var(--va-warning) 60%, black);
}

/* Info */
.btn-info {
    background-color: var(--va-info);
    border-color: var(--va-info);
}
.btn-info:hover, .btn-info:focus {
    background-color: color-mix(in srgb, var(--va-info) 85%, black);
    border-color: color-mix(in srgb, var(--va-info) 85%, black);
}
.bg-info {
    background-color: var(--va-info) !important;
}
.text-info {
    color: var(--va-info) !important;
}
.badge.bg-info {
    background-color: var(--va-info) !important;
}
.alert-info {
    background-color: rgba(var(--bs-info-rgb), 0.15);
    border-color: rgba(var(--bs-info-rgb), 0.3);
    color: color-mix(in srgb, var(--va-info) 60%, black);
}

/* Light & Dark */
.bg-light {
    background-color: var(--va-light) !important;
}
.bg-dark {
    background-color: var(--va-dark) !important;
}
.text-dark {
    color: var(--va-dark) !important;
}
.btn-dark {
    background-color: var(--va-dark);
    border-color: var(--va-dark);
}
.btn-dark:hover, .btn-dark:focus {
    background-color: color-mix(in srgb, var(--va-dark) 85%, black);
    border-color: color-mix(in srgb, var(--va-dark) 85%, black);
}

/* Sidebar */
.sidebar {
    background: linear-gradient(135deg, var(--va-primary) 0%, var(--va-secondary) 100%);
}

/* ============================================
   Quick Win Improvements - Loading States & UX
   ============================================ */

/* Loading Overlay */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    border-radius: inherit;
}

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

/* Skeleton Loading Animation */
.skeleton-loading {
    padding: 1rem;
    width: 100%;
}

.skeleton-line {
    height: 16px;
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
    margin-bottom: 12px;
}

.skeleton-line:last-child {
    margin-bottom: 0;
}

.skeleton-line.short {
    width: 60%;
}

.skeleton-line.long {
    width: 90%;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Skeleton variants */
.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

.skeleton-text {
    height: 14px;
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
    margin-bottom: 8px;
}

.skeleton-card {
    padding: 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
}

/* Button Loading States */
.btn.loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: button-spin 0.6s linear infinite;
}

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

/* ============================================
   Form Validation Enhancements
   ============================================ */

/* Valid State */
.form-control.is-valid,
.form-select.is-valid {
    border-color: #10b981;
    padding-right: calc(1.5em + 0.75rem);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='%2310b981' d='M12.736 3.97a.733.733 0 0 1 1.047 0c.286.289.29.756.01 1.05L7.88 12.01a.733.733 0 0 1-1.065.02L3.217 8.384a.757.757 0 0 1 0-1.06.733.733 0 0 1 1.047 0l3.052 3.093 5.4-6.425a.247.247 0 0 1 .02-.022Z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-valid:focus,
.form-select.is-valid:focus {
    border-color: #10b981;
    box-shadow: 0 0 0 0.2rem rgba(16, 185, 129, 0.25);
}

/* Invalid State */
.form-control.is-invalid,
.form-select.is-invalid {
    border-color: #ef4444;
    padding-right: calc(1.5em + 0.75rem);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='%23ef4444' d='M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    border-color: #ef4444;
    box-shadow: 0 0 0 0.2rem rgba(239, 68, 68, 0.25);
}

/* Feedback Messages */
.invalid-feedback,
.valid-feedback {
    margin-top: 0.25rem;
    font-size: 0.875rem;
}

.invalid-feedback {
    color: #ef4444;
}

.valid-feedback {
    color: #10b981;
}

/* Input Focus Enhancement */
.form-control:focus,
.form-select:focus {
    border-color: var(--va-primary);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

/* ============================================
   Enhanced Toast Notifications
   ============================================ */

#notification-container .toast {
    border-radius: 0.5rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    min-width: 300px;
    transition: all 0.3s ease-out;
}

#notification-container .toast-body {
    padding: 1rem 1.25rem;
    font-size: 0.9rem;
}

#notification-container .toast .bi {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

/* Toast Colors */
.text-bg-success {
    background-color: #10b981 !important;
}

.text-bg-danger {
    background-color: #ef4444 !important;
}

.text-bg-warning {
    background-color: #f59e0b !important;
    color: #000 !important;
}

.text-bg-info {
    background-color: #3b82f6 !important;
}

/* ============================================
   Empty States
   ============================================ */

.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: #6b7280;
}

.empty-state i {
    font-size: 4rem;
    opacity: 0.3;
    margin-bottom: 1.5rem;
    display: block;
    color: #9ca3af;
}

.empty-state h3 {
    color: #374151;
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.empty-state p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.empty-state .btn {
    margin-top: 0.5rem;
}

.empty-state a:not(.btn) {
    color: var(--va-primary);
    text-decoration: none;
    font-weight: 500;
}

.empty-state a:not(.btn):hover {
    text-decoration: underline;
}

/* ============================================
   Touch & Form Enhancements
   ============================================ */

/* Form checkboxes and radios */
.form-check-input {
    cursor: pointer;
}

.form-check-label {
    cursor: pointer;
}

/* ============================================
   Utility Classes
   ============================================ */

/* Fade in animation */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Pulse animation for important elements */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Smooth transitions for interactive elements */
.smooth-transition {
    transition: all 0.2s ease-in-out;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--va-primary);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Improved hover states */
.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s ease-in-out;
}

.btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease-in-out;
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

/* Better link styling */
a:not(.btn):not(.nav-link):not(.dropdown-item) {
    transition: color 0.15s ease-in-out;
}

/* Improved table row hover */
.table-hover tbody tr:hover {
    background-color: rgba(102, 126, 234, 0.05);
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
}

/* Badge improvements */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
}

/* Alert improvements */
.alert {
    border-radius: 0.5rem;
    border-left-width: 4px;
}

.alert-success {
    border-left-color: #10b981;
}

.alert-danger {
    border-left-color: #ef4444;
}

.alert-warning {
    border-left-color: #f59e0b;
}

.alert-info {
    border-left-color: #3b82f6;
}

/* Progress bar improvements */
.progress {
    border-radius: 0.5rem;
    height: 1rem;
}

.progress-bar {
    transition: width 0.6s ease;
}