/**
 * shared/accessibility.css — Accessibility Support Styles
 *
 * Provides accessibility enhancement styles including:
 * - High contrast mode
 * - Large text mode
 * - Reduced motion preferences
 * - Focus indicators
 * - Screen reader optimizations
 *
 * Pure CSS — no Bootstrap/Tailwind dependencies.
 *
 * @see resources/js/Components/AccessibilityWidget.vue
 */

/* ============================================================================
   HIGH CONTRAST MODE
   ============================================================================ */

body.high-contrast {
    --body-bg: #000000;
    --text-color: #ffffff;
    --text-muted: #cccccc;
    --card-bg: #1a1a1a;
    --border-color: #ffffff;
    --primary: #ffcc00;
    --primary-hover: #ffdd33;
}

body.high-contrast a {
    color: #ffcc00;
    text-decoration: underline;
}

body.high-contrast a:hover {
    color: #ffffff;
}

body.high-contrast img {
    filter: contrast(1.2);
}

/* ============================================================================
   LARGE TEXT MODE
   ============================================================================ */

body.large-text {
    --font-size-base: 20px;
}

body.large-text h1 { font-size: 2.5rem; }
body.large-text h2 { font-size: 2rem; }
body.large-text h3 { font-size: 1.75rem; }
body.large-text h4 { font-size: 1.5rem; }
body.large-text p,
body.large-text li,
body.large-text label,
body.large-text input,
body.large-text textarea,
body.large-text button {
    font-size: 1.25rem;
}

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

body.reduced-motion *,
body.reduced-motion *::before,
body.reduced-motion *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
}

/* ============================================================================
   KEYBOARD NAVIGATION MODE
   ============================================================================ */

body.keyboard-nav *:focus {
    outline: 3px solid var(--primary, #D4A574) !important;
    outline-offset: 3px !important;
}

body.keyboard-nav a:focus,
body.keyboard-nav button:focus,
body.keyboard-nav input:focus,
body.keyboard-nav select:focus,
body.keyboard-nav textarea:focus {
    box-shadow: 0 0 0 4px rgba(212, 165, 116, 0.5);
}

/* ============================================================================
   SCREEN READER OPTIMIZED MODE
   ============================================================================ */

body.screen-reader-optimized .decorative,
body.screen-reader-optimized [aria-hidden="true"]:not(svg):not(path) {
    opacity: 0.5;
}

body.screen-reader-optimized [role="img"]:not([alt]) {
    outline: 3px dashed red;
}

/* ============================================================================
   FOCUS VISIBLE POLYFILL
   ============================================================================ */

:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--primary, #D4A574);
    outline-offset: 2px;
}

/* ============================================================================
   SKIP LINK
   ============================================================================ */

.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary, #D4A574);
    color: #000000;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 8px 8px;
    z-index: 10000;
    transition: top 0.2s ease;
}

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

/* ============================================================================
   SCREEN READER ONLY
   ============================================================================ */

.sr-only,
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sr-only-focusable:focus,
.visually-hidden-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}