/**
 * accessibility.css
 * Focus states, skip links, screen reader utilities.
 * Never remove or disable this file.
 */


/* ============================================================
   SKIP LINK
   Visually hidden until focused by keyboard users.
============================================================ */

.skip-link {
    position:         absolute;
    top:              var(--primitive-space-4);
    left:             var(--primitive-space-4);
    z-index:          999;
    padding:          var(--primitive-space-3) var(--primitive-space-6);
    background-color: var(--color-brand);
    color:            var(--color-text-inverse);
    font-weight:      600;
    font-size:        var(--text-small);
    border-radius:    var(--radius-sm);
    text-decoration:  none;
    transform:        translateY( -200% );
    transition:       transform var(--transition-fast);
}

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


/* ============================================================
   FOCUS RING
   Applied to all interactive elements.
   Never use outline: none without a replacement.
============================================================ */

:focus-visible {
    outline:        var(--focus-ring);
    outline-offset: var(--focus-ring-offset);
}

/* Remove focus ring for mouse users, keep for keyboard */
:focus:not( :focus-visible ) {
    outline: none;
}


/* ============================================================
   SCREEN READER UTILITIES
============================================================ */

.screen-reader-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:      0;
}

/* Reveal on focus - for skip links and similar */
.screen-reader-text:focus,
.sr-only:focus {
    position:         static;
    width:            auto;
    height:           auto;
    padding:          var(--primitive-space-3) var(--primitive-space-6);
    margin:           0;
    overflow:         visible;
    clip:             auto;
    white-space:      normal;
    background-color: var(--color-brand);
    color:            var(--color-text-inverse);
}


/* ============================================================
   REDUCED MOTION
   Respect user preferences. Always included.
============================================================ */

@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
============================================================ */

@media ( forced-colors: active ) {

    .btn {
        border: 2px solid ButtonText;
    }

    .post-card {
        border: 1px solid ButtonText;
    }

}