/**
 * Mada Members Accessibility CSS
 * Version: 2.4.0
 * 
 * WCAG 2.1 AA compliance styles.
 */

/* ============================================
   Screen Reader Only (Visually Hidden)
   ============================================ */
.mada-screen-reader-only {
    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;
}

.mada-screen-reader-only:focus,
.mada-screen-reader-only:active {
    width: auto !important;
    height: auto !important;
    padding: 15px 23px 14px !important;
    margin: 5px !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
    background: var(--mada-white) !important;
    color: var(--mada-text) !important;
    z-index: 100000 !important;
    font-size: 16px !important;
    text-decoration: none !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2) !important;
}

/* ============================================
   Skip Links
   ============================================ */
.mada-skip-links {
    position: fixed !important;
    top: -100% !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    z-index: 100001 !important;
    display: flex !important;
    gap: 8px !important;
}

.mada-skip-link {
    padding: 12px 24px !important;
    background: var(--mada-primary) !important;
    color: white !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    border-radius: 0 0 var(--mada-radius-sm) var(--mada-radius-sm) !important;
    transition: top 0.2s ease !important;
}

.mada-skip-link:focus {
    position: fixed !important;
    top: 0 !important;
    outline: 3px solid var(--mada-warning) !important;
    outline-offset: 2px !important;
}

/* ============================================
   Focus Indicators (Enhanced)
   ============================================ */
*:focus {
    outline: none !important;
}

*:focus-visible {
    outline: 3px solid var(--mada-primary) !important;
    outline-offset: 2px !important;
    border-radius: 2px !important;
}

/* High contrast focus for form elements */
.mada-form-input:focus-visible,
.mada-form-select:focus-visible,
.mada-form-textarea:focus-visible {
    outline: none !important;
    border-color: var(--mada-primary) !important;
    box-shadow: 0 0 0 3px rgba(0, 114, 255, 0.3) !important;
}

/* Focus for buttons */
.mada-btn:focus-visible {
    outline: 3px solid var(--mada-primary) !important;
    outline-offset: 2px !important;
    box-shadow: 0 0 0 6px rgba(0, 114, 255, 0.2) !important;
}

/* Focus for links */
a:focus-visible {
    outline: 2px solid var(--mada-primary) !important;
    outline-offset: 2px !important;
}

/* Focus for checkboxes and radios */
input[type="checkbox"]:focus-visible,
input[type="radio"]:focus-visible {
    outline: 2px solid var(--mada-primary) !important;
    outline-offset: 2px !important;
}

/* ============================================
   Color Contrast (WCAG AA - 4.5:1)
   ============================================ */
/* Primary text - #1f2937 on white = 12.6:1 */
.mada-text-primary {
    color: #1f2937 !important;
}

/* Secondary text - #4b5563 on white = 7.5:1 */
.mada-text-secondary {
    color: #4b5563 !important;
}

/* Muted text - #6b7280 on white = 5.0:1 */
.mada-text-muted {
    color: #6b7280 !important;
}

/* Error text - #dc2626 on white = 4.6:1 */
.mada-text-error {
    color: #dc2626 !important;
}

/* Success text - #047857 on white = 5.9:1 */
.mada-text-success {
    color: #047857 !important;
}

/* Link text - #0072ff on white = 4.6:1 */
a.mada-link {
    color: #0072ff !important;
    text-decoration: underline !important;
    text-underline-offset: 2px !important;
}

a.mada-link:hover {
    color: #0056cc !important;
}

/* ============================================
   Form Accessibility
   ============================================ */
/* Required field indicator */
.mada-form-label .required {
    color: #dc2626 !important;
    font-weight: 700 !important;
}

/* Error state */
.mada-form-group.has-error .mada-form-input {
    border-color: #dc2626 !important;
}

.mada-form-group.has-error .mada-form-error {
    color: #dc2626 !important;
    font-size: 13px !important;
    margin-top: 6px !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
}

.mada-form-group.has-error .mada-form-error::before {
    content: '!' !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 18px !important;
    height: 18px !important;
    background: #dc2626 !important;
    color: white !important;
    border-radius: 50% !important;
    font-size: 12px !important;
    font-weight: 700 !important;
}

/* Success state */
.mada-form-group.has-success .mada-form-input {
    border-color: #047857 !important;
}

/* Help text */
.mada-form-help {
    color: #6b7280 !important;
    font-size: 13px !important;
    margin-top: 6px !important;
}

/* ============================================
   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;
    }
    
    .mada-spinner {
        animation: none !important;
        border-top-color: transparent !important;
    }
    
    .mada-skeleton {
        animation: none !important;
        background: var(--mada-border) !important;
    }
    
    .mada-toast {
        animation: none !important;
    }
    
    .mada-toast.removing {
        animation: none !important;
        display: none !important;
    }
}

/* ============================================
   High Contrast Mode
   ============================================ */
@media (prefers-contrast: high) {
    .mada-form-input {
        border-width: 3px !important;
        border-color: #000 !important;
    }
    
    .mada-btn {
        border: 2px solid currentColor !important;
    }
    
    .mada-btn-primary {
        border-color: #000 !important;
    }
    
    *:focus-visible {
        outline-width: 4px !important;
    }
    
    .mada-toast {
        border: 2px solid #000 !important;
    }
}

/* ============================================
   Dark Mode Support
   ============================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --mada-text: #f9fafb;
        --mada-text-light: #e5e7eb;
        --mada-text-muted: #9ca3af;
        --mada-bg: #111827;
        --mada-bg-hover: #1f2937;
        --mada-white: #1f2937;
        --mada-border: #374151;
    }
    
    .mada-form-input {
        background: #374151 !important;
        color: #f9fafb !important;
        border-color: #4b5563 !important;
    }
    
    .mada-form-input::placeholder {
        color: #9ca3af !important;
    }
    
    .mada-toast {
        background: #1f2937 !important;
        color: #f9fafb !important;
    }
    
    .mada-confirm-dialog {
        background: #1f2937 !important;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .mada-skip-links,
    .mada-toast-container,
    .mada-loading-overlay,
    .mada-btn {
        display: none !important;
    }
    
    a[href]::after {
        content: ' (' attr(href) ')' !important;
        font-size: 0.8em !important;
        color: #666 !important;
    }
    
    .mada-screen-reader-only {
        position: static !important;
        width: auto !important;
        height: auto !important;
        padding: 0 !important;
        margin: 0 !important;
        overflow: visible !important;
        clip: auto !important;
        white-space: normal !important;
    }
}

/* ============================================
   Responsive Accessibility
   ============================================ */
@media (max-width: 768px) {
    .mada-skip-links {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    
    .mada-skip-link {
        text-align: center !important;
        border-radius: 0 !important;
    }
    
    /* Larger touch targets for mobile */
    .mada-btn {
        min-height: 48px !important;
        min-width: 48px !important;
    }
    
    .mada-form-input {
        min-height: 48px !important;
    }
    
    .mada-toast {
        max-width: calc(100vw - 40px) !important;
    }
}