/* css/carousel.css */

html, body {
    margin: 0;
    padding: 0;
    height: auto !important;
    overflow-x: hidden;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

body {
    background: repeating-linear-gradient(to right, transparent 0px 100px, red 100px 101px),
                repeating-linear-gradient(to bottom, transparent 0px 100px, red 100px 101px);
    background-color: black;
}

.banner {
    width: 100%;
    min-height: 400px;
    height: 100vh;
    max-height: 800px;
    position: relative;
    cursor: grab;
    touch-action: pan-y;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.banner:active {
    cursor: grabbing;
}

.slider {
    position: absolute;
    width: 300px;
    height: 350px;
    transform-style: preserve-3d;
    transition: transform 0.1s linear;
    left: 50%;
    transform: translateX(-50%) rotateY(0deg);
    transform-origin: center center;
    --translate-z: 500px; 
}

.slider .items {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    backface-visibility: hidden;
    
    transform:
        rotateY(calc((var(--position) - 1) * (360deg / var(--quantity))))
        translateZ(var(--translate-z));
    
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease, border 0.3s ease;
    border-radius: 10px;
    border: 5px solid transparent;
}

.slider .items img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 10px;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.slider .items:hover img {
    transform: scale(1.05);
    cursor: pointer;
}

.slider .items.active {
    border: 5px solid dodgerblue;
    box-shadow: 0 0 30px rgba(30, 144, 255, 0.7);
}

.slider .items .label-top,
.slider .items .label-bottom {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8em;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.slider .items.active .label-top {
    top: 10px;
    opacity: 1;
}

.slider .items.active .label-bottom {
    bottom: 10px;
    opacity: 1;
}

body.keyboard-nav .slider .items a:focus {
    outline: 3px solid #ffcc00;
    outline-offset: 5px;
    border-radius: 10px;
}
body.keyboard-nav .slider .items a:focus img {
    transform: scale(1.08);
}

@media (max-width: 1024px) {
    .slider {
        width: 250px;
        height: 300px;
        --translate-z: 400px;
    }
}

@media (max-width: 768px) {
    .banner {
        min-height: 300px;
        height: 60vh;
        max-height: 500px;
        perspective: 800px;
    }

    .slider {
        width: 200px;
        height: 250px;
        --translate-z: 320px;
    }

    .slider .items {
        border-width: 3px;
        border-radius: 8px;
    }
    
    .slider .items img {
        border-radius: 8px;
    }
}

@media (max-width: 480px) {
    .banner {
        min-height: 250px;
        height: 50vh;
        max-height: 400px;
        perspective: 600px;
    }

    .slider {
        width: 150px;
        height: 200px;
        --translate-z: 250px;
    }

    .slider .items {
        border-width: 2px;
    }

    .slider .items .label-top,
    .slider .items .label-bottom {
        font-size: 0.7em;
        padding: 3px 8px;
    }
}