/**
 * CNIB STRATEVITA Platform - Accessibility Styles
 * Additional CSS for WCAG and ADA compliance
 */

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 12px 20px;
    z-index: 1000;
    transition: top 0.3s;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 4px 0;
}

.skip-link:focus {
    top: 0;
}

/* Enhanced Focus Indicators */
.keyboard-user :focus {
    outline: 3px solid #FFFF00 !important; /* High visibility yellow */
    outline-offset: 3px;
    box-shadow: 0 0 0 2px #000000; /* Double outline for even better visibility */
}

/* 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;
}

/* Audio Navigation Menu */
.audio-nav-menu {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--neutral-800);
    color: var(--neutral-100);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    z-index: 1000;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    display: none;
}

.audio-nav-menu.active {
    display: block;
}

.audio-nav-menu h2 {
    margin-top: 0;
    color: var(--neutral-100);
}

.audio-nav-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.audio-nav-list li {
    margin-bottom: 0.5rem;
}

.audio-nav-list button {
    width: 100%;
    text-align: left;
    padding: 0.75rem 1rem;
    background-color: var(--neutral-700);
    color: var(--neutral-100);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: background-color 0.2s;
}

.audio-nav-list button:hover,
.audio-nav-list button:focus {
    background-color: var(--primary-color);
}

.audio-nav-menu .close-btn {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background-color: var(--neutral-600);
    color: var(--neutral-100);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: background-color 0.2s;
}

.audio-nav-menu .close-btn:hover,
.audio-nav-menu .close-btn:focus {
    background-color: var(--neutral-500);
}

/* Audio Indicators */
.audio-available-indicator {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: rgba(0, 102, 204, 0.2);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s;
}

.audio-available-indicator:hover,
.audio-available-indicator:focus {
    background-color: rgba(0, 102, 204, 0.4);
}

.audio-highlight {
    position: relative;
}

.audio-highlight::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 102, 204, 0.1);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    pointer-events: none;
}

/* Accessibility Statement Page */
.accessibility {
    padding: var(--spacing-xxl) 0;
    background-color: var(--neutral-200);
}

.accessibility h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.accessibility-content {
    background-color: var(--neutral-100);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.accessibility-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: var(--spacing-lg) 0 var(--spacing-md);
    color: var(--neutral-900);
}

.accessibility-content h3:first-child {
    margin-top: 0;
}

.keyboard-shortcuts {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

.keyboard-shortcuts th,
.keyboard-shortcuts td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--neutral-300);
}

.keyboard-shortcuts th {
    font-weight: 600;
    background-color: var(--neutral-200);
}

.keyboard-shortcuts tr:last-child td {
    border-bottom: none;
}

.accessibility-link {
    margin-left: var(--spacing-md);
    color: var(--neutral-300);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.accessibility-link:hover {
    color: var(--neutral-100);
}

/* High Contrast Mode */
.high-contrast {
    --primary-color: #0033CC;
    --primary-dark: #002299;
    --primary-light: #3366FF;
    --secondary-color: #CC5500;
    --secondary-dark: #993300;
    --secondary-light: #FF6600;
    --neutral-100: #FFFFFF;
    --neutral-200: #F5F7FA;
    --neutral-800: #000000;
    --neutral-900: #000000;
}

.high-contrast body {
    background-color: #000000;
    color: #FFFFFF;
}

.high-contrast .hero {
    background-color: #000000;
}

.high-contrast .hero h1,
.high-contrast .hero .subtitle {
    color: #FFFFFF;
}

.high-contrast .feature-card,
.high-contrast .user-type-card {
    background-color: #000000;
    border: 2px solid #FFFFFF;
}

.high-contrast .feature-card h3,
.high-contrast .user-type-card h3 {
    color: #FFFFFF;
}

.high-contrast .feature-card p,
.high-contrast .user-type-card p {
    color: #FFFFFF;
}

.high-contrast .about {
    background-color: #000000;
}

.high-contrast .about h2,
.high-contrast .features h2,
.high-contrast .user-types h2 {
    color: #FFFFFF;
}

.high-contrast .about-text p {
    color: #FFFFFF;
}

.high-contrast .features {
    background-color: #000000;
}

.high-contrast .user-types {
    background-color: #000000;
}

.high-contrast .primary-btn {
    background-color: #FFFFFF;
    color: #000000;
    border: 2px solid #FFFFFF;
}

.high-contrast .secondary-btn {
    background-color: #000000;
    color: #FFFFFF;
    border: 2px solid #FFFFFF;
}

.high-contrast .secondary-btn:hover {
    background-color: #FFFFFF;
    color: #000000;
}

.high-contrast a {
    color: #3366FF;
}

.high-contrast a:hover {
    color: #6699FF;
}

.high-contrast .feature-icon,
.high-contrast .user-type-icon {
    background-color: #3366FF;
}

.high-contrast .accessibility-content {
    background-color: #000000;
    border: 2px solid #FFFFFF;
}

.high-contrast .keyboard-shortcuts th {
    background-color: #333333;
    color: #FFFFFF;
}

.high-contrast .keyboard-shortcuts td,
.high-contrast .keyboard-shortcuts th {
    border-color: #666666;
    color:#ffffff;
}

/* Fix for accessibility content text in high-contrast mode */
.high-contrast .accessibility-content h3,
.high-contrast .accessibility-content p,
.high-contrast .accessibility-content a {
    color: #FFFFFF;
}

.accessibility-content h3,
.accessibility-content p {
    color: var(--neutral-900);
}

.accessibility-content a {
    color: var(--primary-color);
}

/* Form Accessibility Enhancements */
.field-description {
    font-size: 0.875rem;
    color: var(--neutral-700);
    margin-top: 0.25rem;
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

input:required,
textarea:required,
select:required {
    border-left: 4px solid var(--primary-color);
}

input[aria-invalid="true"],
textarea[aria-invalid="true"],
select[aria-invalid="true"] {
    border-color: var(--error);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .audio-nav-menu {
        width: 95%;
        padding: 1.5rem;
    }
    
    .accessibility-content {
        padding: var(--spacing-md);
    }
    
    .keyboard-shortcuts th,
    .keyboard-shortcuts td {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.875rem;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .skip-link,
    .audio-highlight,
    .audio-available-indicator,
    .audio-nav-list button,
    .audio-nav-menu .close-btn {
        transition: none;
    }
    
    .audio-highlight::after {
        animation: none;
    }
    
    section {
        scroll-margin-top: 100px;
    }
}

/* Link Accessibility Enhancements */
a:not(.btn):not(.no-underline) {
    text-decoration: underline;
}

a:focus, a:hover {
    text-decoration: underline;
    outline: 2px solid #0066CC;
}