/**
 * Accessibility Enhancements for AstroGames
 * Ensures WCAG 2.1 AA compliance while maintaining early 2000s aesthetic
 */

/* 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;
}


/* Focus Indicators - Early 2000s Style */
.nav-link:focus,
.user-btn:focus,
.mobile-menu-toggle:focus,
.btn:focus,
.btn-primary:focus,
.btn-secondary:focus,
.btn-small:focus,
.btn-danger:focus,
.btn-load-more:focus,
.filter-btn:focus,
.search-btn:focus,
.search-input:focus,
input:focus,
select:focus,
textarea:focus,
button:focus,
a:focus {
    outline: 2px solid #CC0000;
    outline-offset: 2px;
}

/* High Contrast Focus for Better Visibility */
@media (prefers-contrast: high) {
    .nav-link:focus,
    .user-btn:focus,
    .mobile-menu-toggle:focus,
    .btn:focus,
    input:focus,
    select:focus,
    textarea:focus,
    button:focus,
    a:focus {
        outline: 3px solid #000;
        outline-offset: 2px;
        background: #FFFF00;
        color: #000;
    }
}

/* Improved Color Contrast */
.hero-content p,
.game-info p,
.category-card p {
    color: #333;
    font-weight: normal;
}

/* Better contrast for links */
a {
    color: #0066CC;
}

a:visited {
    color: #663399;
}

a:hover {
    color: #004499;
}

/* Form Labels */
label {
    color: #333;
    font-weight: bold;
    display: block;
    margin-bottom: 4px;
}

/* Required Field Indicators */
.required::after {
    content: " *";
    color: #CC0000;
}

/* Error States */
.error {
    border: 2px solid #CC0000;
    background: #FFE6E6;
}

.error-message {
    color: #CC0000;
    font-size: 12px;
    margin-top: 4px;
}

/* Success States */
.success {
    border: 2px solid #009900;
    background: #E6FFE6;
}

.success-message {
    color: #009900;
    font-size: 12px;
    margin-top: 4px;
}

/* Table Accessibility */
.history-table th,
.metadata-table th {
    background: #E8E8E8;
    font-weight: bold;
    text-align: left;
    padding: 8px;
    border: 1px solid #CCCCCC;
}

.history-table td,
.metadata-table td {
    padding: 8px;
    border: 1px solid #CCCCCC;
    vertical-align: top;
}

/* Improved Table Readability */
.history-table tr:nth-child(even),
.metadata-table tr:nth-child(even) {
    background: #F8F8F8;
}

/* Button States for Screen Readers */
.filter-btn[aria-pressed="true"] {
    background: #CCCCCC;
    border: 1px inset #999999;
}

.filter-btn[aria-pressed="false"] {
    background: #E0E0E0;
    border: 1px outset #CCCCCC;
}

/* Mobile Menu Accessibility */
.mobile-menu-toggle[aria-expanded="true"] .mobile-nav-menu {
    display: block;
}

.mobile-menu-toggle[aria-expanded="false"] .mobile-nav-menu {
    display: none;
}

/* Carousel Accessibility */
.games-carousel[role="region"] {
    border: 1px solid #CCCCCC;
    padding: 10px;
}

/* Live Region Styling */
[aria-live] {
    font-weight: bold;
    color: #333;
}

/* Improved Image Alt Text Display (for debugging) */
img:not([alt]),
img[alt=""] {
    border: 2px dashed #CC0000;
}

/* Better Contrast for Placeholder Text */
::placeholder {
    color: #666666;
    opacity: 1;
}

/* Keyboard Navigation Helpers */
.keyboard-user *:focus {
    outline: 2px solid #CC0000;
    outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .starfield-layer {
        animation: none !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .game-card,
    .category-card,
    .stat-card {
        border: 2px solid #000;
    }
    
    .btn,
    .btn-primary,
    .btn-secondary {
        border: 2px solid #000;
        background: #FFFFFF;
        color: #000000;
    }
    
    .btn:hover {
        background: #000000;
        color: #FFFFFF;
    }
}

/* Dark Mode Support (if needed) */
@media (prefers-color-scheme: dark) {
    /* Keep early 2000s light theme but improve contrast */
    body {
        background: #F5F5F5;
        color: #333;
    }
}

/* Print Styles for Accessibility */
@media print {
    .skip-link,
    .mobile-menu-toggle,
    .ad-container,
    .starfield-container {
        display: none;
    }
    
    a::after {
        content: " (" attr(href) ")";
        font-size: 12px;
        color: #666;
    }
    
    .game-card,
    .category-card {
        border: 1px solid #000;
        margin-bottom: 10px;
        page-break-inside: avoid;
    }
}

/* Touch Target Improvements for Mobile */
@media (max-width: 768px) {
    .nav-link,
    .user-btn,
    .btn,
    .filter-btn,
    .mobile-nav-link {
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 12px;
    }
    
    .game-card {
        min-height: 44px;
    }
}

/* Language Direction Support */
[dir="rtl"] .skip-link {
    left: auto;
    right: 6px;
}

[dir="rtl"] .breadcrumb-separator {
    transform: scaleX(-1);
}

/* Improved Form Accessibility */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    margin-bottom: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #CCCCCC;
    background: #FFFFFF;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #CC0000;
    outline: 2px solid #CC0000;
    outline-offset: 2px;
}

/* Status Messages */
.status-message {
    padding: 12px;
    margin: 16px 0;
    border: 1px solid #CCCCCC;
    background: #F8F8F8;
}

.status-message.error {
    border-color: #CC0000;
    background: #FFE6E6;
    color: #CC0000;
}

.status-message.success {
    border-color: #009900;
    background: #E6FFE6;
    color: #009900;
}

.status-message.warning {
    border-color: #FF9900;
    background: #FFF3E6;
    color: #FF9900;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: "Loading...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #FFFFFF;
    padding: 8px 16px;
    border: 1px solid #CCCCCC;
    z-index: 1000;
}

/* Tooltip Accessibility */
[title] {
    position: relative;
}

/* Custom Checkbox/Radio Styling for Better Accessibility */
.toggle-switch input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
}

.toggle-switch .slider {
    display: inline-block;
    width: 40px;
    height: 20px;
    background: #CCCCCC;
    border: 1px solid #999999;
    cursor: pointer;
    position: relative;
}

.toggle-switch .slider::before {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    background: #FFFFFF;
    border: 1px solid #666666;
    top: 1px;
    left: 1px;
    transition: none; /* No transitions for early 2000s compatibility */
}

.toggle-switch input[type="checkbox"]:checked + .slider {
    background: #009900;
}

.toggle-switch input[type="checkbox"]:checked + .slider::before {
    left: 21px;
}

.toggle-switch input[type="checkbox"]:focus + .slider {
    outline: 2px solid #CC0000;
    outline-offset: 2px;
}