/**
 * Accessibility Styles
 *
 * Enhanced accessibility styles including visible focus states,
 * screen reader utilities, and minimum touch targets.
 *
 * @package Apus_Theme
 * @since 1.0.0
 */

/* ==========================================================================
   Focus Styles - Highly Visible
   ========================================================================== */

/**
 * Enhanced focus styles for better keyboard navigation
 * Using double outline for better visibility across different backgrounds
 */
*:focus {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
}

/* Remove default browser focus outline (we're replacing it with better one) */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Modern browsers that support :focus-visible */
*:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

/* Links */
a:focus,
a:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
    text-decoration: underline;
}

/* Buttons */
button:focus,
button:focus-visible,
.button:focus,
.button:focus-visible,
input[type="submit"]:focus,
input[type="submit"]:focus-visible,
input[type="button"]:focus,
input[type="button"]:focus-visible,
input[type="reset"]:focus,
input[type="reset"]:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
}

/* Form inputs */
input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="number"]:focus,
input[type="tel"]:focus,
input[type="range"]:focus,
input[type="date"]:focus,
input[type="month"]:focus,
input[type="week"]:focus,
input[type="time"]:focus,
input[type="datetime"]:focus,
input[type="datetime-local"]:focus,
input[type="color"]:focus,
textarea:focus,
select:focus {
    outline: 3px solid #0066cc;
    outline-offset: 0;
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

/* Checkboxes and radio buttons */
input[type="checkbox"]:focus,
input[type="radio"]:focus {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

/* Navigation menu items */
.main-navigation a:focus,
.primary-menu a:focus,
nav a:focus {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    background-color: rgba(0, 102, 204, 0.1);
}

/* Menu toggle button */
.menu-toggle:focus,
.mobile-menu-toggle:focus {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
}

/* ==========================================================================
   Screen Reader Text Utilities
   ========================================================================== */

/**
 * Hide elements visually but keep them accessible to screen readers
 */
.screen-reader-text,
.sr-only,
.visually-hidden {
    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;
    clip-path: inset(50%) !important;
}

/**
 * Make screen reader text visible on focus
 * Important for skip links and keyboard navigation
 */
.screen-reader-text:focus,
.sr-only:focus,
.visually-hidden:focus {
    position: fixed !important;
    top: 5px !important;
    left: 5px !important;
    width: auto !important;
    height: auto !important;
    padding: 15px 23px 14px !important;
    margin: 0 !important;
    background-color: #000 !important;
    color: #fff !important;
    font-size: 14px !important;
    font-weight: bold !important;
    line-height: normal !important;
    text-decoration: none !important;
    z-index: 100000 !important;
    clip: auto !important;
    clip-path: none !important;
    outline: 3px solid #0066cc !important;
    outline-offset: 2px !important;
    border-radius: 3px !important;
}

/**
 * Skip to content link
 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background-color: #000;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    z-index: 100000;
    font-weight: bold;
    border-radius: 0 0 3px 0;
    transition: top 0.2s ease-in-out;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid #0066cc;
    outline-offset: 2px;
}

/* ==========================================================================
   Touch Targets - Minimum 44x44px
   ========================================================================== */

/**
 * Ensure all interactive elements meet WCAG 2.1 Level AAA
 * minimum touch target size of 44x44 pixels
 */

/* Buttons */
button,
.button,
input[type="submit"],
input[type="button"],
input[type="reset"],
.wp-block-button__link {
    min-height: 44px;
    min-width: 44px;
    padding: 10px 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Links in navigation */
.main-navigation a,
.primary-menu a,
.footer-navigation a,
nav a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 10px 15px;
}

/* Menu toggle buttons */
.menu-toggle,
.mobile-menu-toggle {
    min-width: 44px;
    min-height: 44px;
    padding: 10px;
}

/* Pagination links */
.page-numbers,
.pagination a,
.posts-navigation a {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 15px;
}

/* Form inputs */
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="tel"],
textarea,
select {
    min-height: 44px;
    padding: 10px 15px;
}

/* Checkboxes and radio buttons */
input[type="checkbox"],
input[type="radio"] {
    min-width: 24px;
    min-height: 24px;
    margin: 10px; /* Add margin to reach 44px effective touch target */
}

/* Links with small text need larger padding */
.tags-list a,
.category-badge {
    min-height: 44px;
    padding: 12px 16px;
    display: inline-flex;
    align-items: center;
}

/* ==========================================================================
   High Contrast Mode Support
   ========================================================================== */

/**
 * Ensure elements remain visible in Windows High Contrast Mode
 */
@media (prefers-contrast: high) {
    button,
    a,
    .button {
        border: 2px solid currentColor;
    }

    *:focus,
    *:focus-visible {
        outline: 3px solid;
        outline-offset: 3px;
    }
}

/* ==========================================================================
   Reduced Motion Support
   ========================================================================== */

/**
 * Respect user's preference for reduced motion
 * Remove animations for users who prefer reduced motion
 */
@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;
    }
}

/* ==========================================================================
   Color Contrast Enhancements
   ========================================================================== */

/**
 * Ensure text has sufficient color contrast
 * WCAG AA requires 4.5:1 for normal text, 3:1 for large text
 */

/* Enhanced link contrast */
a {
    color: #0056b3;
    text-decoration: underline;
}

a:hover {
    color: #003d82;
    text-decoration: underline;
}

/* Error messages - high contrast red */
.error,
.error-message,
.form-error {
    color: #c81e1e;
    background-color: #fef0f0;
    border: 2px solid #c81e1e;
    padding: 10px 15px;
    border-radius: 4px;
}

/* Success messages - high contrast green */
.success,
.success-message,
.form-success {
    color: #1e7e34;
    background-color: #e8f5e9;
    border: 2px solid #1e7e34;
    padding: 10px 15px;
    border-radius: 4px;
}

/* Warning messages - high contrast yellow/orange */
.warning,
.warning-message,
.form-warning {
    color: #856404;
    background-color: #fff3cd;
    border: 2px solid #856404;
    padding: 10px 15px;
    border-radius: 4px;
}

/* ==========================================================================
   ARIA Live Regions
   ========================================================================== */

/**
 * Ensure live regions are properly announced
 */
[aria-live] {
    position: relative;
}

[aria-live="assertive"] {
    font-weight: bold;
}

/* ==========================================================================
   Focus Management for Modals and Dialogs
   ========================================================================== */

/**
 * Trap focus within modals
 */
.modal[aria-modal="true"],
.dialog[aria-modal="true"] {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
}

/* Modal backdrop */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    z-index: 999998;
}

/* ==========================================================================
   Text Spacing and Readability
   ========================================================================== */

/**
 * Support for user text spacing preferences
 * WCAG 2.1 Level AA Success Criterion 1.4.12
 */
p,
li,
dd,
dt {
    line-height: 1.6;
    letter-spacing: 0.02em;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    letter-spacing: 0.01em;
}

/* Allow text to be resized up to 200% without loss of content or functionality */
html {
    font-size: 100%;
}

/* ==========================================================================
   Table Accessibility
   ========================================================================== */

/**
 * Ensure tables are accessible
 */
table {
    border-collapse: collapse;
    width: 100%;
}

th {
    text-align: left;
    font-weight: bold;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 12px;
}

td {
    border: 1px solid #dee2e6;
    padding: 12px;
}

/* Add scope visually for screen readers */
caption {
    font-weight: bold;
    text-align: left;
    padding: 10px 0;
    caption-side: top;
}

/* ==========================================================================
   Print Accessibility
   ========================================================================== */

@media print {
    /* Ensure focus styles don't print */
    *:focus {
        outline: none !important;
        box-shadow: none !important;
    }

    /* Show link URLs in print */
    a[href]:after {
        content: " (" attr(href) ")";
    }

    /* Don't show URLs for fragment links or javascript */
    a[href^="#"]:after,
    a[href^="javascript:"]:after {
        content: "";
    }
}