/* ==========================================================================
   ACCESSIBILITY ENHANCEMENTS - WCAG 2.1 AA COMPLIANT
   ========================================================================== */

/* Focus indicators */
*:focus {
    outline: 2px solid #005fcc;
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 9999;
    border-radius: 4px;
}

.skip-link:focus {
    top: 6px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .card {
        border: 1px solid #000;
    }
    
    .form-control {
        border: 2px solid #000;
    }
}

/* Reduced motion support */
@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;
    }
}

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

/* Improved form labels */
.form-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

.form-label.required::after {
    content: " *";
    color: #dc3545;
}

/* Better error messages */
.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: #dc3545;
}

/* Improved button states */
.lw-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Better table accessibility */
.lw-table th {
    font-weight: 600;
}

.lw-table caption {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    color: #6c757d;
    text-align: left;
    caption-side: top;
}

/* Modal accessibility */
.lw-modal[aria-hidden="true"] {
    display: none;
}

.lw-modal[aria-hidden="false"] {
    display: flex;
}

/* Notification accessibility */
.lw-alert {
    border-left: 4px solid;
}

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

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

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

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

/* Loading states */
.loading {
    position: relative;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #ffffff;
        --border-color: #333333;
    }
    
    body {
        background-color: var(--bg-color);
        color: var(--text-color);
    }
    
    .card {
        background-color: #2d2d2d;
        border-color: var(--border-color);
    }
    
    .form-control {
        background-color: #2d2d2d;
        border-color: var(--border-color);
        color: var(--text-color);
    }
}