/**
 * LivePublicWebcams - Accessibility Styles
 * Improves accessibility and usability of the site
 */

/* Visually hidden content (accessible to screen readers but not visible) */
.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;
}

/* Programmatically accessible but visually hidden */
.visually-hidden:not(:focus):not(:active) {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus outline styles */
:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Improved focus styles for dark mode */
.dark :focus {
    outline-color: #4a88ff;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: 10px;
    z-index: 1001;
    transition: top 0.2s ease;
}

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

/* Improved contrast for text on various backgrounds */
.improved-contrast {
    text-shadow: 0 0 2px rgba(0, 0, 0, 0.3);
}

.dark .improved-contrast {
    text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
}

/* High contrast mode */
@media (forced-colors: active) {
    .webcam-card,
    .btn,
    .category-filter,
    .search-toggle,
    .lang-toggle,
    .theme-toggle {
        border: 1px solid;
    }
    
    /* Ensure text on colored backgrounds is visible */
    .webcam-category,
    .btn-primary,
    .btn-secondary,
    .viewer-count {
        border: 1px solid;
        forced-color-adjust: none;
    }
}

/* Keyboard accessible elements */
button:not([disabled]),
a[href],
input:not([disabled]),
select:not([disabled]),
textarea:not([disabled]),
[tabindex]:not([tabindex="-1"]) {
    cursor: pointer;
}

/* Keyboard navigation styles */
body.keyboard-user {
    --focus-outline-color: #0056b3;
    --focus-outline-width: 3px;
}

body.keyboard-user button:focus,
body.keyboard-user a:focus,
body.keyboard-user input:focus,
body.keyboard-user select:focus,
body.keyboard-user textarea:focus,
body.keyboard-user [tabindex]:not([tabindex="-1"]):focus {
    outline: var(--focus-outline-width) solid var(--focus-outline-color);
    outline-offset: 3px;
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.2);
}

body.keyboard-user .btn:focus,
body.keyboard-user .card:focus-within,
body.keyboard-user .webcam-card:focus-within {
    box-shadow: 0 0 0 3px var(--focus-outline-color);
    outline: var(--focus-outline-width) solid var(--focus-outline-color);
    outline-offset: 2px;
    position: relative;
    z-index: 1;
}

/* Increase touch target sizes for mobile */
@media (max-width: 768px) {
    button,
    .btn,
    .nav-list a,
    .search-toggle,
    .lang-toggle,
    .theme-toggle {
        min-height: 44px;
        min-width: 44px;
    }
    
    .control-btn {
        min-width: 44px;
        min-height: 44px;
    }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001s !important;
        scroll-behavior: auto !important;
    }
    
    .webcam-card:hover {
        transform: none !important;
    }
    
    .channel-change-animation {
        animation: none !important;
    }
    
    .pulse-dot::before {
        animation: none !important;
    }
    
    .control-btn:hover {
        transform: none !important;
    }
    
    .webcam-card:hover .webcam-thumbnail img {
        transform: none !important;
    }
}

/* Make form controls more accessible */
input[type="search"],
input[type="text"],
input[type="email"],
textarea,
select {
    padding: 10px;
    font-size: 16px; /* Prevents iOS zoom on focus */
}

/* Ensure color is not the only means of conveying information */
.active {
    font-weight: bold;
    text-decoration: underline;
}

/* Add arrow indicators to buttons */
.btn-with-icon {
    display: inline-flex;
    align-items: center;
}

.btn-with-icon svg,
.btn-with-icon img {
    margin-right: 8px;
}

/* Improved focus indication for interactive elements */
.interactive-focus:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

.dark .interactive-focus:focus-visible {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.5);
}

/* Aria descriptions and enhanced labels */
[aria-describedby] {
    position: relative;
}

.description-tooltip {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100%;
    background-color: var(--card-light);
    padding: 8px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 8px;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}

.dark .description-tooltip {
    background-color: var(--card-dark);
}

[aria-describedby]:hover .description-tooltip,
[aria-describedby]:focus .description-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Enhanced form labels */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
}

/* Status messages */
.status-message {
    padding: 12px;
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.status-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.dark .status-success {
    background-color: rgba(16, 185, 129, 0.2);
    color: #a7f3d0;
    border-color: #065f46;
}

.status-error {
    background-color: #fee2e2;
    color: #b91c1c;
    border: 1px solid #ef4444;
}

.dark .status-error {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border-color: #b91c1c;
}

/* High contrast mode support */
@media (prefers-contrast: more) {
    :root {
        --primary: #0040c1;
        --text-light: #000000;
        --text-dark: #ffffff;
        --bg-light: #ffffff;
        --bg-dark: #121212;
    }
}

/* Large text for users with visual impairments */
html.text-large {
    font-size: 20px;
}

html.text-xlarge {
    font-size: 24px;
}

/* Dyslexia-friendly font option */
html.dyslexic-font {
    --font-family: 'OpenDyslexic', sans-serif;
}

html.dyslexic-font body,
html.dyslexic-font button,
html.dyslexic-font input,
html.dyslexic-font select,
html.dyslexic-font textarea {
    font-family: var(--font-family);
    line-height: 1.8;
    letter-spacing: 0.5px;
    word-spacing: 3px;
}

/* Accessibility controls panel */
.accessibility-panel {
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin-top: 16px;
}

.dark .accessibility-panel {
    background-color: var(--bg-dark);
    border-color: var(--border-dark);
}

.accessibility-panel h3 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 18px;
}

.accessibility-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.accessibility-controls button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 36px;
    padding: 4px 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    background-color: var(--card-light);
    color: var(--text-light);
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.dark .accessibility-controls button {
    border-color: var(--border-dark);
    background-color: var(--card-dark);
    color: var(--text-dark);
}

.accessibility-controls button:hover {
    background-color: var(--primary-light);
}

.dark .accessibility-controls button:hover {
    background-color: var(--primary-dark);
}

.accessibility-controls button.active,
.accessibility-controls button[aria-pressed="true"] {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

.dark .accessibility-controls button.active,
.dark .accessibility-controls button[aria-pressed="true"] {
    background-color: var(--primary);
    border-color: var(--primary-light);
}

.accessibility-option {
    margin-bottom: 16px;
}

.accessibility-option-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
}

/* Text sizing specific styles */
.text-size-controls {
    display: flex;
    gap: 4px;
}

.text-size-controls button {
    font-weight: 500;
}

/* Toggle switches for accessibility options */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .3s;
    border-radius: 30px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: var(--primary);
}

input:focus + .toggle-slider {
    box-shadow: 0 0 1px var(--primary);
}

input:checked + .toggle-slider:before {
    transform: translateX(30px);
}

.toggle-label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.toggle-label span {
    margin-left: 8px;
}

/* Announcement area for screen readers */
.announce-area {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.announce-area[aria-live="polite"],
.announce-area[aria-live="assertive"] {
    position: absolute;
}