/* Accessibility enhancements for the CISO Ally website */

/* Focus styles */
:focus {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 15px;
    background-color: var(--primary-blue);
    color: white;
    z-index: 9999;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.skip-link:focus {
    transform: translateY(0);
    opacity: 1;
}

/* Keyboard navigation detection */
.user-is-tabbing :focus {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

body:not(.user-is-tabbing) button:focus,
body:not(.user-is-tabbing) input:focus,
body:not(.user-is-tabbing) select:focus,
body:not(.user-is-tabbing) textarea:focus,
body:not(.user-is-tabbing) a:focus {
    outline: none;
}

/* ARIA improvements */
[aria-hidden="true"] {
    display: none !important;
}

[aria-expanded="true"] + ul {
    display: block;
}

[aria-expanded="false"] + ul {
    display: none;
}

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

/* Color contrast improvements */
.high-contrast {
    --primary-blue: #0056b3;
    --secondary-blue: #003d7a;
    --accent-orange: #d95700;
    --dark-gray: #222222;
    --medium-gray: #555555;
}

/* Touch target size improvements */
@media (max-width: 768px) {
    button, 
    .main-nav a,
    .footer-links a,
    .role-button,
    .form-group button,
    input[type="checkbox"],
    input[type="radio"] {
        min-height: 44px;
        min-width: 44px;
        padding: 12px 15px;
    }
    
    input[type="checkbox"],
    input[type="radio"] {
        width: 24px;
        height: 24px;
    }
    
    label {
        display: inline-block;
        margin-bottom: 8px;
    }
}

/* Form accessibility improvements */
input:focus,
textarea:focus,
select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(30, 115, 190, 0.25);
}

input[type="checkbox"]:focus + label,
input[type="radio"]:focus + label {
    text-decoration: underline;
}

fieldset {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 15px;
    margin-bottom: 20px;
}

legend {
    padding: 0 10px;
    font-weight: 600;
}

/* Error states */
.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: #d9534f;
}

.error-message {
    color: #d9534f;
    font-size: 0.9rem;
    margin-top: 5px;
}

/* Required field indication */
.required-field::after {
    content: '*';
    color: #d9534f;
    margin-left: 3px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (forced-colors: active) {
    .hero-button,
    .submit-button,
    .back-to-top,
    .role-button {
        border: 2px solid currentColor;
    }
}

/* Text spacing for readability */
.improved-readability {
    line-height: 1.8;
    letter-spacing: 0.01em;
    word-spacing: 0.05em;
}

/* Image alt text styling for when images fail to load */
img {
    font-style: italic;
    color: var(--medium-gray);
}

/* Focus visible polyfill */
.js-focus-visible :focus:not(.focus-visible) {
    outline: none;
}

.js-focus-visible .focus-visible {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}