/* Skip link */
.skip-link {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 10001;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    background: var(--text-dark);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    transform: translateY(-160%);
    transition: transform 0.2s ease;
}

.skip-link:focus {
    transform: translateY(0);
    outline: none;
}

.skip-link:focus-visible {
    box-shadow: 0 0 0 3px var(--white), 0 0 0 6px var(--primary-pink);
}

/* Focus rings */
:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--primary-pink);
    outline-offset: 2px;
}

.btn:focus-visible,
.floating-book-btn:focus-visible {
    outline-offset: 3px;
    box-shadow: var(--shadow-sm), 0 0 0 4px rgba(0, 0, 0, 0.35);
}

.nav-menu a:focus-visible,
.logo:focus-visible,
.breadcrumbs a:focus-visible,
.appointment-recommendation-link:focus-visible {
    outline-offset: 3px;
}

.faq-question:focus-visible {
    outline-offset: -2px;
    background: rgba(0, 0, 0, 0.08);
}

.thumbnail-btn:focus-visible {
    outline-offset: 2px;
    opacity: 1;
}

.product-card > a:focus-visible {
    display: block;
    border-radius: var(--radius-lg);
    outline-offset: 4px;
}

.mobile-menu-toggle:focus-visible {
    outline-offset: 3px;
    border-radius: 8px;
}

.cookie-consent-btn:focus-visible {
    outline-offset: 3px;
}

/* Form validation */
.was-validated .form-group input:invalid,
.was-validated .form-group textarea:invalid,
.was-validated .form-group select:invalid {
    border-color: #c62828;
    box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.12);
}

.was-validated .form-group input:valid,
.was-validated .form-group textarea:valid {
    border-color: rgba(46, 125, 50, 0.45);
}

/* Image skeleton loaders */
.img-skeleton {
    position: relative;
    background: var(--surface-muted);
    overflow: hidden;
}

.img-skeleton .skeleton-shimmer {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.55) 50%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: skeletonShimmer 1.4s ease-in-out infinite;
    pointer-events: none;
}

.img-skeleton.is-loaded .skeleton-shimmer {
    display: none;
}

.img-skeleton img {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.img-skeleton.is-loaded img {
    opacity: 1;
}

.gallery-main.img-skeleton img {
    position: relative;
    z-index: 0;
}

@keyframes skeletonShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.form-group input:focus-visible,
.form-group textarea:focus-visible,
.form-group select:focus-visible,
.filter-group input:focus-visible,
.filter-group select:focus-visible {
    border-color: rgba(0, 0, 0, 0.75);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.22);
}

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

    .img-skeleton .skeleton-shimmer {
        animation: none;
        background: rgba(255, 255, 255, 0.25);
    }

    .img-skeleton img {
        transition: none;
    }

    .skip-link {
        transition: none;
    }
}