/* Accessibility Improvements for CleanMyPDF */

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

/* Skip Navigation 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;
}

/* Enhanced Focus Indicators */
.btn:focus,
.form-control:focus,
.form-select:focus,
[role="button"]:focus,
[tabindex]:focus {
    outline: 3px solid #0066cc !important;
    outline-offset: 2px !important;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.3) !important;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .btn-outline-primary {
        border-width: 2px;
    }
    
    .card {
        border-width: 2px;
    }
    
    .badge {
        border: 2px solid currentColor;
    }
}

/* 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;
    }
}

/* Custom Focus for Drag Drop Zone */
#dropZone:focus {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    background-color: rgba(0, 102, 204, 0.1);
}

/* Status Indicators with Text Alternatives */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator::before {
    content: attr(data-status-text);
    font-weight: bold;
}

/* Color-blind Friendly Status Colors */
.status-success {
    background-color: #28a745;
    background-image: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,.2) 10px, rgba(255,255,255,.2) 20px);
}

.status-error {
    background-color: #dc3545;
    background-image: repeating-linear-gradient(-45deg, transparent, transparent 10px, rgba(255,255,255,.2) 10px, rgba(255,255,255,.2) 20px);
}

.status-warning {
    background-color: #ffc107;
    background-image: repeating-linear-gradient(90deg, transparent, transparent 10px, rgba(0,0,0,.1) 10px, rgba(0,0,0,.1) 20px);
}

/* Enhanced Button States */
.btn[aria-pressed="true"] {
    box-shadow: inset 0 3px 5px rgba(0,0,0,.2);
}

/* Loading State Accessibility */
.loading-spinner[aria-hidden="false"] {
    position: relative;
}

.loading-spinner[aria-hidden="false"]::after {
    content: "Processing...";
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Form Error States */
.form-control:invalid,
.form-select:invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.invalid-feedback {
    display: block;
    color: #dc3545;
    font-weight: bold;
}

/* Tooltip Accessibility */
.tooltip {
    font-size: 0.875rem;
    z-index: 1070;
}

/* Enhanced Link States */
a:focus {
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
}

/* Custom Checkbox/Radio Styles for Better Visibility */
.form-check-input:focus {
    border-color: #0066cc;
    box-shadow: 0 0 0 0.25rem rgba(0, 102, 204, 0.25);
}

/* Progress Bar Accessibility */
.progress {
    background-color: #e9ecef;
    border: 1px solid #dee2e6;
}

.progress-bar {
    background-image: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,.2) 10px, rgba(255,255,255,.2) 20px);
}