/* ===================================
   Accessibilité (A11y)
   ================================== */

/* Skip Navigation Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #667eea;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 0 0 4px 0;
    z-index: 100;
    font-weight: 600;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid #ffd700;
    outline-offset: 2px;
}

/* Focus Visible pour tous les éléments interactifs */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* Amélioration du contraste pour les liens */
a {
    text-decoration-skip-ink: auto;
}

/* Indicateur de focus pour les cartes cliquables */
.card:focus-within {
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
}

/* Amélioration des boutons pour l'accessibilité */
button:disabled,
.btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Amélioration du contraste pour le texte (WCAG AA) */
.text-muted,
.form-text,
.form-text.text-muted,
small.text-muted,
.small.text-muted,
.text-secondary {
    color: #374151 !important;
}

/* Secondaire lisible — à préférer aux gris trop clairs (#9ca3af, #94a3b8) */
.text-readable-muted,
.text-subtle {
    color: #4b5563 !important;
}

/* Cartes / KPI / actions rapides — lisibilité forcée */
.kpi-label,
.kpi-sub,
.progress-label,
.demande-meta,
.demande-type,
.action-card .action-label,
.action-label {
    color: #1f2937 !important;
}
.kpi-sub,
.demande-meta {
    color: #374151 !important;
    font-weight: 500;
}
.action-card {
    color: #111827 !important;
}
.action-card:hover {
    color: #111827 !important;
}
.action-card .action-label {
    font-weight: 700 !important;
    font-size: 0.88rem !important;
}

/* États vides lisibles */
.text-empty,
.empty-state,
.empty-state p,
.empty-state span {
    color: #374151 !important;
}

/* Indicateur de chargement accessible */
.loading-spinner[aria-busy="true"] {
    position: relative;
}

.loading-spinner[aria-busy="true"]::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Amélioration des formulaires */
label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Erreurs de formulaire accessibles */
.invalid-feedback {
    color: #dc3545;
    font-weight: 600;
}

input.is-invalid:focus,
select.is-invalid:focus,
textarea.is-invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* Tables accessibles */
table {
    border-collapse: collapse;
}

th {
    font-weight: 600;
    text-align: left;
}

/* Amélioration des modales */
.modal:focus {
    outline: none;
}

.modal-content {
    border-radius: 8px;
}

/* Amélioration du dark mode pour l'accessibilité */
@media (prefers-color-scheme: dark) {
    :root {
        --text-color: #e0e0e0;
        --bg-color: #1a1a1a;
        --link-color: #8b9cff;
    }
}

/* Réduction des animations pour les utilisateurs qui le préfèrent */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Amélioration du contraste pour les alertes */
.alert {
    border-left: 4px solid;
}

.alert-success {
    border-left-color: #28a745;
}

.alert-danger {
    border-left-color: #dc3545;
}

.alert-warning {
    border-left-color: #ffc107;
    color: #856404;
}

.alert-info {
    border-left-color: #17a2b8;
}

/* Amélioration des badges */
.badge {
    font-weight: 600;
    padding: 0.35em 0.65em;
}

/* Amélioration de la navigation */
nav[aria-label="breadcrumb"] {
    margin-bottom: 1rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    padding: 0 0.5rem;
}