/**
 * Vierzeh Slick Optimized Styles
 * Combines slick.min.css and slick-custom.css
 * With Bootstrap 5 integration and modern CSS features
 * 
 * @version 4.0.0
 */

/* === CRITICAL SLICK CORE === */
.slick-slider {
    position: relative;
    display: block;
    box-sizing: border-box;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    -khtml-user-select: none;
    touch-action: pan-y;
    -webkit-tap-highlight-color: transparent;
}

.slick-list {
    position: relative;
    display: block;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

.slick-list:focus {
    outline: 0;
}

.slick-list.dragging {
    cursor: move;
    cursor: grab;
}

.slick-track {
    position: relative;
    top: 0;
    left: 0;
    display: block;
    transform: translate3d(0, 0, 0);
}

.slick-track:before,
.slick-track:after {
    display: table;
    content: '';
}

.slick-track:after {
    clear: both;
}

.slick-loading .slick-track {
    visibility: hidden;
}

.slick-slide {
    display: none;
    float: left;
    height: 100%;
    min-height: 1px;
    outline: none !important;
}

[dir='rtl'] .slick-slide {
    float: right;
}

.slick-slide img {
    display: block;
    width: 100%;
    height: auto;
}

.slick-slide.slick-loading img {
    display: none;
}

.slick-slide.dragging img {
    pointer-events: none;
}

.slick-initialized .slick-slide {
    display: block;
}

.slick-loading .slick-slide {
    visibility: hidden;
}

.slick-vertical .slick-slide {
    display: block;
    height: auto;
}

.slick-arrow.slick-hidden {
    display: none;
}

/* === GALLERY CONTAINER === */
.vierzeh-slick-gallery {
    position: relative;
    overflow: hidden;
}

/* Native scroll fallback with CSS Scroll Snap */
@supports (scroll-snap-type: x mandatory) {
    .gallery-scroll-fallback {
        scroll-snap-type: x mandatory;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }
    
    .gallery-scroll-fallback img {
        scroll-snap-align: start;
        scroll-snap-stop: always;
    }
}

/* === SLICK OVERRIDES WITH BOOTSTRAP 5 === */
.slick-slider-container {
    margin: 0 calc(var(--bs-gutter-x) * -0.25);
}

.slick-slide {
    padding: 0 calc(var(--bs-gutter-x) * 0.25);
}

.slick-slide img {
    border-radius: var(--bs-border-radius, 0.375rem);
    aspect-ratio: attr(width) / attr(height);
    object-fit: cover;
}

/* Focus states for accessibility */
.slick-slide:focus-visible img,
.slick-slider-container:focus-visible .slick-current img {
    outline: 2px solid var(--bs-primary, #0d6efd);
    outline-offset: 2px;
}

/* === NAVIGATION ARROWS === */
.slick-prev,
.slick-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(var(--bs-dark-rgb, 33, 37, 41), 0.7);
    border: none;
    border-radius: 50%;
    color: var(--bs-white, #fff);
    font-size: 0;
    cursor: pointer;
    transition: all var(--bs-transition, 0.15s ease-in-out);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.slick-prev:hover,
.slick-next:hover {
    background: rgba(var(--bs-dark-rgb, 33, 37, 41), 0.9);
    transform: translateY(-50%) scale(1.1);
}

.slick-prev:focus-visible,
.slick-next:focus-visible {
    outline: 2px solid var(--bs-white, #fff);
    outline-offset: 2px;
}

.slick-prev {
    left: 0.625rem;
}

.slick-next {
    right: 0.625rem;
}

/* Arrow icons using CSS masks for better theming */
.slick-prev::before,
.slick-next::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background-color: currentColor;
    mask-size: 1.25rem 1.25rem;
    mask-position: center;
    mask-repeat: no-repeat;
    -webkit-mask-size: 1.25rem 1.25rem;
    -webkit-mask-position: center;
    -webkit-mask-repeat: no-repeat;
}

.slick-prev::before {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='15 18 9 12 15 6'%3E%3C/polyline%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='15 18 9 12 15 6'%3E%3C/polyline%3E%3C/svg%3E");
}

.slick-next::before {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='9 18 15 12 9 6'%3E%3C/polyline%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='9 18 15 12 9 6'%3E%3C/polyline%3E%3C/svg%3E");
}

/* Disabled state */
.slick-disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.slick-disabled:hover {
    transform: translateY(-50%);
}

/* === DOTS === */
.slick-dots {
    position: absolute;
    bottom: -2rem;
    width: 100%;
    padding: 0;
    margin: 0;
    list-style: none;
    text-align: center;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.slick-dots li {
    margin: 0;
}

.slick-dots li button {
    font-size: 0;
    line-height: 0;
    display: block;
    width: 0.625rem;
    height: 0.625rem;
    padding: 0;
    cursor: pointer;
    color: transparent;
    border: 0;
    outline: none;
    background: var(--bs-gray-400, #ced4da);
    border-radius: 50%;
    transition: all var(--bs-transition, 0.15s ease-in-out);
}

.slick-dots li button:hover,
.slick-dots li button:focus {
    outline: none;
    background: var(--bs-gray-600, #6c757d);
}

.slick-dots li.slick-active button {
    background: var(--bs-dark, #212529);
    transform: scale(1.2);
}

/* === RESPONSIVE === */
@media (max-width: 575.98px) {
    .slick-prev,
    .slick-next {
        width: 2.25rem;
        height: 2.25rem;
    }
    
    .slick-prev {
        left: 0.375rem;
    }
    
    .slick-next {
        right: 0.375rem;
    }
    
    /* Hide arrows on touch devices if only 2 slides */
    .slick-slider[data-slide-count="2"] .slick-prev,
    .slick-slider[data-slide-count="2"] .slick-next {
        display: none !important;
    }
}

@media (max-width: 991.98px) {
    .slick-slider-container {
        margin: 0;
    }
    
    .slick-slide {
        padding: 0;
    }
}

/* === LOADING STATE === */
.vierzeh-slick-gallery.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.vierzeh-slick-gallery.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2.5rem;
    height: 2.5rem;
    border: 0.25rem solid rgba(var(--bs-dark-rgb, 33, 37, 41), 0.1);
    border-radius: 50%;
    border-top-color: var(--bs-primary, #0d6efd);
    animation: spin 0.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* === SINGLE IMAGE === */
.single-image-container img {
    border-radius: var(--bs-border-radius, 0.375rem);
}

/* === ACCESSIBILITY === */
.vierzeh-slick-gallery:focus-within {
    outline: 2px solid var(--bs-primary, #0d6efd);
    outline-offset: 2px;
    border-radius: var(--bs-border-radius, 0.375rem);
}

/* Skip link for keyboard navigation */
.slick-skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 999;
}

.slick-skip-link:focus {
    left: 50%;
    transform: translateX(-50%);
    background: var(--bs-dark, #212529);
    color: var(--bs-white, #fff);
    padding: 0.5rem 1rem;
    border-radius: var(--bs-border-radius, 0.375rem);
    text-decoration: none;
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    .slick-slide,
    .slick-track,
    .slick-prev,
    .slick-next,
    .slick-dots li button {
        transition: none !important;
        animation: none !important;
    }
    
    .slick-slider {
        scroll-behavior: auto;
    }
}

/* === PRINT === */
@media print {
    .slick-prev,
    .slick-next,
    .slick-dots,
    .slick-skip-link {
        display: none !important;
    }
    
    .slick-slide {
        page-break-inside: avoid;
        break-inside: avoid;
    }
    
    .slick-track {
        transform: none !important;
    }
    
    .slick-slide {
        display: block !important;
        float: none !important;
        margin-bottom: 1rem;
    }
}