.image-slider { 
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    position: relative;
}


.slider-thumbnails {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}
.slider-thumbnails img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: border 0.2s, transform 0.2s;
}
.slider-thumbnails img.active {
    border-color: var(--color-blue);
    transform: scale(1.05);
}


.slider-main {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}
.slider-main img.slider-current {
    max-width: 400px;
    max-height: 400px;
    width: 100%;
    object-fit: contain;
    cursor: pointer;
    border-radius: 8px;
    background: var(--color-blue-lighter);
}


.slider-btn {
    background: rgba(0, 0, 0, 0.6);
    border: none;
    color: #fff;
    font-size: 2em;
    width: 40px;
    height: 40px;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 50%;
    z-index: 5;
    cursor: pointer;
}
.slider-btn.prev { left: 8px; }
.slider-btn.next { right: 8px; }


.slider-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
.slider-modal.hidden { display: none; }

.modal-img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
}


.modal-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: transparent !important;
    border: none;
    color: #fff;
    font-size: clamp(36px, 5vw, 64px);
    cursor: pointer;
    width: auto;
    height: auto;
    padding: 0 8px;
    border-radius: 0;
    line-height: 1;
    text-shadow: 0 0 10px rgba(0,0,0,.6);
    z-index: 10000;
    opacity: .9;
}
.modal-btn:hover { opacity: 1; }
.modal-btn:focus { outline: none; }

.modal-btn.prev { left: 40px; }
.modal-btn.next { right: 40px; }