/* Accessibility Enhancements for PJ Signs */

/* Focus styles for better keyboard navigation */
:focus {
    outline: 3px solid #dd1717;
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #dd1717;
    color: white;
    padding: 8px 16px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Image loading states */
img[loading="lazy"] {
    transition: opacity 0.3s ease-in-out;
    background: #f5f5f5;
}

img[loading="lazy"][src] {
    opacity: 1;
}

/* Thumbnail hover and focus states */
.thumbnail-item img {
    transition: all 0.2s ease-in-out;
    cursor: pointer;
}

.thumbnail-item img:hover,
.thumbnail-item img:focus {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.thumbnail-item.active img {
    border: 2px solid #dd1717;
    box-shadow: 0 0 0 2px rgba(230, 13, 46, 0.3);
}

/* Button focus states */
button:focus,
a:focus,
[role="button"]:focus {
    box-shadow: 0 0 0 3px rgba(230, 13, 46, 0.5);
}

/* Form elements */
input:focus,
select:focus,
textarea:focus {
    border-color: #0f4392;
}

/* Screen reader only class */
.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;
}

/* Loading animation for images */
@keyframes shimmer {
    0% { background-position: -468px 0; }
    100% { background-position: 468px 0; }
}

.loading {
    background: #f6f7f8;
    background-image: linear-gradient(to right, #f6f7f8 0%, #e9ebee 20%, #f6f7f8 40%, #f6f7f8 100%);
    background-repeat: no-repeat;
    background-size: 800px 100%;
    display: inline-block;
    position: relative;
    animation: shimmer 1s infinite linear;
}