/* ============================================
   MindRead Accessibility Styles
   WCAG 2.1 AA Compliance
   ============================================ */

/* ----------------------------------------
   1. Skip Links
   ---------------------------------------- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: #6366F1;
    color: #fff;
    padding: 12px 24px;
    border-radius: 0 0 8px 8px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    z-index: 10000;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    outline: none;
}

/* ----------------------------------------
   2. Focus Visible Styles
   ---------------------------------------- */
:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid #6366F1;
    outline-offset: 2px;
}

/* Buttons */
button:focus-visible,
.btn:focus-visible,
[role="button"]:focus-visible {
    outline: 2px solid #6366F1;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.3);
}

/* Links */
a:focus-visible {
    outline: 2px solid #6366F1;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Form inputs */
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #6366F1;
    outline-offset: 0;
    border-color: #6366F1;
}

/* Checkbox and radio - wrapper focus */
input[type="checkbox"]:focus-visible + label::before,
input[type="radio"]:focus-visible + label::before {
    outline: 2px solid #6366F1;
    outline-offset: 2px;
}

/* Cards and interactive containers */
.story-card:focus-visible,
.choice-btn:focus-visible,
[tabindex="0"]:focus-visible {
    outline: 2px solid #6366F1;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.3);
}

/* ----------------------------------------
   3. Screen Reader Only (Visually Hidden)
   ---------------------------------------- */
.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;
}

/* Allow the element to be focusable when navigated to via tab */
.sr-only-focusable:focus,
.sr-only-focusable:active {
    position: static !important;
    width: auto !important;
    height: auto !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
}

/* ----------------------------------------
   4. 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;
    }
}

/* ----------------------------------------
   5. High Contrast Mode Support
   ---------------------------------------- */
@media (prefers-contrast: high) {
    :focus-visible {
        outline: 3px solid currentColor;
        outline-offset: 3px;
    }

    button,
    a,
    input,
    select,
    textarea {
        border: 2px solid currentColor;
    }
}

/* ----------------------------------------
   6. Modal Accessibility
   ---------------------------------------- */
[role="dialog"] {
    /* Ensure modal is properly positioned */
    position: fixed;
}

[role="dialog"][aria-modal="true"] {
    /* Backdrop for modal */
    z-index: 1000;
}

/* Focus trap indicator - visual cue */
.modal-focus-trap-start,
.modal-focus-trap-end {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

/* ----------------------------------------
   7. ARIA Live Region Styles
   ---------------------------------------- */
[aria-live="polite"],
[aria-live="assertive"] {
    /* Ensure live regions are available but not visually intrusive */
}

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

/* ----------------------------------------
   8. Icon Button Accessibility
   ---------------------------------------- */
.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
}

/* Ensure icon-only buttons have proper touch target */
button:not(:has(span:not(.sr-only))),
[role="button"]:not(:has(span:not(.sr-only))) {
    min-width: 44px;
    min-height: 44px;
}

/* ----------------------------------------
   9. Form Accessibility
   ---------------------------------------- */
/* Required field indicator */
.required::after {
    content: " *";
    color: #EF4444;
}

/* Error state */
.form-error,
[aria-invalid="true"] {
    border-color: #EF4444 !important;
}

.form-error-message {
    color: #EF4444;
    font-size: 13px;
    margin-top: 4px;
}

/* ----------------------------------------
   10. Color Contrast Fixes
   ---------------------------------------- */
/* Ensure minimum contrast ratio for text */
.text-muted {
    color: rgba(255, 255, 255, 0.7) !important; /* Increased from 0.5 */
}

.text-secondary {
    color: rgba(255, 255, 255, 0.8) !important; /* Increased from 0.6 */
}

/* Dark theme high contrast text */
[data-theme="dark"] .text-muted,
.dark .text-muted {
    color: rgba(255, 255, 255, 0.75) !important;
}

/* ----------------------------------------
   11. Touch Target Sizes (Mobile)
   ---------------------------------------- */
@media (pointer: coarse) {
    button,
    a,
    input[type="checkbox"],
    input[type="radio"],
    select,
    [role="button"],
    .clickable {
        min-height: 44px;
        min-width: 44px;
    }
}

/* ----------------------------------------
   12. Disabled State Accessibility
   ---------------------------------------- */
[disabled],
[aria-disabled="true"],
.disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* Ensure disabled elements don't receive focus */
[disabled]:focus,
[aria-disabled="true"]:focus {
    outline: none;
}