/* Lightbox štýly */
.portfolio-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    margin: 0 auto;
}

.lightbox-image {
    display: block;
    max-width: 100%;
    max-height: 85vh;
    margin: 0 auto;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    box-sizing: border-box;
}

.lightbox-prev,
.lightbox-next {
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background-color: rgba(124, 135, 127, 0.8);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
    transition: background-color 0.3s ease;
}

.lightbox-close:hover {
    background-color: rgba(124, 135, 127, 0.8);
}

.lightbox-counter {
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
    text-align: center;
    color: #fff;
    font-size: 16px;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

/* Šípky navigácie */
.lightbox-prev::before,
.lightbox-next::before {
    content: '';
    display: block;
    width: 12px;
    height: 12px;
    border-style: solid;
    border-color: #fff;
    border-width: 0 0 3px 3px;
    transform: rotate(45deg);
    margin-left: 5px;
}

.lightbox-next::before {
    transform: rotate(-135deg);
    margin-left: -5px;
}

.lightbox-close::before,
.lightbox-close::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 3px;
    background-color: #fff;
    top: 50%;
    left: 50%;
}

.lightbox-close::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.lightbox-close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

/* Skrytie prvkov pri zobrazení lightboxu */
body.lightbox-open {
    overflow: hidden;
}

/* Animácia pre obrázky */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lightbox-image {
    animation: fadeIn 0.3s ease;
}

/* Responzívnosť pre mobilné zariadenia */
@media screen and (max-width: 768px) {
    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
    }

    .lightbox-counter {
        bottom: 10px;
    }
}