/**
 * DiabloDesign Gallery - Lightbox Styles
 * @package  com_ddgallery
 * @author   Paweł Kawka - DiabloDesign
 * @version  1.0.0
 * Zero-dependency custom lightbox
 */

/* =========================================================
   Lightbox Overlay
   ========================================================= */

.ddg-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.ddg-lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

/* =========================================================
   Lightbox Content
   ========================================================= */

.ddg-lightbox__content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.ddg-lightbox.is-open .ddg-lightbox__content {
    transform: scale(1);
}

.ddg-lightbox__img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    user-select: none;
    -webkit-user-drag: none;
}

/* =========================================================
   Lightbox Spinner
   ========================================================= */

.ddg-lightbox__spinner {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: #c60000;
    border-radius: 50%;
    animation: ddg-spin 0.8s linear infinite;
}

@keyframes ddg-spin {
    to { transform: rotate(360deg); }
}

/* =========================================================
   Lightbox Caption
   ========================================================= */

.ddg-lightbox__caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: #fff;
    padding: 2rem 1.5rem 1rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ddg-lightbox:hover .ddg-lightbox__caption,
.ddg-lightbox__caption.is-visible {
    opacity: 1;
}

.ddg-lightbox__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.ddg-lightbox__description {
    font-size: 0.85rem;
    margin: 0.25rem 0 0;
    opacity: 0.8;
}

/* =========================================================
   Lightbox Counter
   ========================================================= */

.ddg-lightbox__counter {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    font-weight: 500;
    background: rgba(0, 0, 0, 0.4);
    padding: 0.3rem 0.75rem;
    border-radius: 2rem;
}

/* =========================================================
   Lightbox Toolbar
   ========================================================= */

.ddg-lightbox__toolbar {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.ddg-lightbox__btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    padding: 0;
}

.ddg-lightbox__btn:hover {
    background: #c60000;
    transform: scale(1.1);
}

.ddg-lightbox__btn svg {
    width: 20px;
    height: 20px;
}

/* =========================================================
   Lightbox Navigation
   ========================================================= */

.ddg-lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    z-index: 10;
    padding: 0;
}

.ddg-lightbox__nav:hover {
    background: #c60000;
    transform: translateY(-50%) scale(1.1);
}

.ddg-lightbox__nav svg {
    width: 24px;
    height: 24px;
}

.ddg-lightbox__nav--prev {
    left: 1rem;
}

.ddg-lightbox__nav--next {
    right: 1rem;
}

/* =========================================================
   Lightbox Thumbnails Strip
   ========================================================= */

.ddg-lightbox__thumbs {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.6);
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.ddg-lightbox.show-thumbs .ddg-lightbox__thumbs {
    transform: translateY(0);
}

.ddg-lightbox__thumb {
    width: 56px;
    height: 42px;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    flex-shrink: 0;
    padding: 0;
    background: none;
}

.ddg-lightbox__thumb.is-active {
    border-color: #c60000;
}

.ddg-lightbox__thumb:hover {
    border-color: rgba(198, 0, 0, 0.6);
}

.ddg-lightbox__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 768px) {
    .ddg-lightbox__nav {
        width: 40px;
        height: 40px;
    }

    .ddg-lightbox__nav--prev { left: 0.5rem; }
    .ddg-lightbox__nav--next { right: 0.5rem; }

    .ddg-lightbox__toolbar {
        top: 0.5rem;
        right: 0.5rem;
    }

    .ddg-lightbox__counter {
        top: 0.5rem;
        left: 0.5rem;
    }

    .ddg-lightbox__thumbs {
        display: none;
    }
}

/* =========================================================
   Animations
   ========================================================= */

@keyframes ddg-lightbox-fadein {
    from { opacity: 0; transform: scale(0.95); }
    to   { opacity: 1; transform: scale(1); }
}

.ddg-lightbox__img.is-loaded {
    animation: ddg-lightbox-fadein 0.3s ease;
}

/* =========================================================
   Fullscreen
   ========================================================= */

.ddg-lightbox.is-fullscreen .ddg-lightbox__img {
    max-width: 100vw;
    max-height: 100vh;
}

/* Body scroll lock */
body.ddg-lightbox-open {
    overflow: hidden;
}