/**
 * Accessibility Styles for gSkeleton Theme
 * WCAG 2.1 Level AA Compliance
 * 
 * @package gSkeleton
 * @since 1.1.0
 */

/* =============================================================================
   Skip Link
   ============================================================================= */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background-color: #004C71;
    color: #FFFFFF;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100000;
    border-radius: 0 0 4px 0;
    font-weight: 600;
    transition: top 0.3s ease-in-out;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid #4A7C94;
    outline-offset: 2px;
}

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

.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: #FBF7F0;
    border-radius: 3px;
    box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6);
    clip: auto !important;
    clip-path: none;
    color: #004C71;
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

/* =============================================================================
   Focus Styles
   ============================================================================= */

a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid #004C71;
    outline-offset: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #004C71;
    outline-offset: 2px;
}

/* Remove outline for mouse users (optional) */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
input:focus:not(:focus-visible),
textarea:focus:not(:focus-visible),
select:focus:not(:focus-visible) {
    outline: none;
}

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

@media (prefers-contrast: high) {
    a {
        text-decoration: underline;
    }
    
    button,
    .wp-block-button__link {
        border: 2px solid currentColor;
    }
}

/* =============================================================================
   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;
    }
}

/* =============================================================================
   Text Spacing (WCAG 2.1 Success Criterion 1.4.12)
   ============================================================================= */

* {
    line-height: 1.5 !important;
}

p {
    margin-bottom: 1em;
}

/* =============================================================================
   Link Identification
   ============================================================================= */

a:not([class]) {
    text-decoration: underline;
    text-decoration-skip-ink: auto;
}

/* =============================================================================
   Form Accessibility
   ============================================================================= */

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="search"],
input[type="url"],
textarea,
select {
    display: block;
    width: 100%;
    padding: 0.5rem;
    border: 2px solid #8E8E8E;
    border-radius: 4px;
    font-size: 1rem;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
    border-color: #004C71;
    outline: 2px solid #004C71;
    outline-offset: 2px;
}

/* Error states */
input:invalid,
textarea:invalid {
    border-color: #dc2626;
}

input:invalid:focus,
textarea:invalid:focus {
    outline-color: #dc2626;
}

/* =============================================================================
   Image Accessibility
   ============================================================================= */

img {
    max-width: 100%;
    height: auto;
}

img:not([alt]) {
    outline: 3px solid #dc2626;
}

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

table {
    border-collapse: collapse;
    width: 100%;
}

th {
    text-align: left;
    font-weight: 600;
    background-color: #FBF7F0;
}

th,
td {
    padding: 0.75rem;
    border: 1px solid #8E8E8E;
}

caption {
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-align: left;
}

/* =============================================================================
   Button Accessibility
   ============================================================================= */

button,
.wp-block-button__link {
    cursor: pointer;
    min-height: 44px;
    min-width: 44px;
    padding: 0.5rem 1rem;
}

button:disabled,
.wp-block-button__link:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* =============================================================================
   Heading Hierarchy
   ============================================================================= */

h1, h2, h3, h4, h5, h6 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    line-height: 1.3;
}

/* =============================================================================
   Color Contrast Utilities
   ============================================================================= */

.has-high-contrast {
    color: #000000 !important;
    background-color: #FFFFFF !important;
}

.has-inverse-contrast {
    color: #FFFFFF !important;
    background-color: #000000 !important;
}