/* WCAG 2.1 AA Accessibility Styles */

/* Skip-to-content link — visually hidden until focused */
.sr-skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: #2563eb;
    color: #fff;
    padding: 12px 24px;
    border-radius: 0 0 8px 8px;
    font-weight: 700;
    font-size: 14px;
    z-index: 100000;
    text-decoration: none;
    transition: top 0.15s ease;
}
.sr-skip-link:focus {
    top: 0;
    outline: 3px solid #f59e0b;
    outline-offset: 2px;
}

/* Focus indicators — visible on all interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid #2563eb;
    outline-offset: 2px;
}

/* Ensure minimum touch target size (44x44px per WCAG 2.5.5) */
button, .btn, [role="button"], input[type="submit"], input[type="button"] {
    min-height: 44px;
    min-width: 44px;
}

/* Links in body text — must be distinguishable not just by color */
.wrap a, main a, [role="main"] a {
    text-decoration: underline;
    text-underline-offset: 2px;
}
.wrap a:hover, main a:hover, [role="main"] a:hover {
    text-decoration-thickness: 2px;
}

/* Navigation links don't need underline */
.site-nav a { text-decoration: none; }

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

/* Reduced motion: respect user preferences */
@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;
    }
}

/* High contrast mode support */
@media (forced-colors: active) {
    .nav-cta, .btn, button {
        border: 2px solid ButtonText;
    }
}