/* =============================================
   SEAK Gallery – Frontend
   ============================================= */

/* --- Masonry Grid --- */
.sg-masonry {
    column-count: 3;
    column-gap: 16px;
}

.sg-item {
    break-inside: avoid;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.sg-item a {
    display: block;
    position: relative;
    text-decoration: none;
}

.sg-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.sg-item:hover img {
    transform: scale(1.03);
}

/* --- Hover Overlay --- */
.sg-item-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
    border-radius: 12px;
    pointer-events: none;
}

.sg-item-overlay svg {
    width: 32px;
    height: 32px;
    color: #fff;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.sg-item:hover .sg-item-overlay {
    background: rgba(0, 0, 0, 0.25);
}

.sg-item:hover .sg-item-overlay svg {
    opacity: 1;
    transform: scale(1);
}

/* --- Fade In Animation --- */
.sg-fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: sgFadeIn 0.5s ease forwards;
}

@keyframes sgFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Load More Button --- */
.sg-load-more-wrap {
    text-align: center;
    margin-top: 32px;
}

#sg-load-more {
    background: #000;
    color: #fff;
    padding: 12px 32px;
    border-radius: 100px;
    border: none;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    letter-spacing: 0.02em;
}

#sg-load-more:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

#sg-load-more:active {
    transform: translateY(0);
}

/* --- Lightbox Modal --- */
.sg-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999999;
    align-items: center;
    justify-content: center;
}

.sg-modal.sg-modal--open {
    display: flex;
}

.sg-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sg-modal--open .sg-modal-backdrop {
    opacity: 1;
}

.sg-modal-content {
    position: relative;
    z-index: 2;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

#sg-modal-img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease;
    user-select: none;
    -webkit-user-drag: none;
}

#sg-modal-img.sg-img--loaded {
    opacity: 1;
    transform: scale(1);
}

/* --- Spinner --- */
.sg-modal-spinner {
    position: absolute;
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: sgSpin 0.7s linear infinite;
    display: none;
}

.sg-modal--loading .sg-modal-spinner {
    display: block;
}

@keyframes sgSpin {
    to { transform: rotate(360deg); }
}

/* --- Navigation Buttons --- */
.sg-modal-prev,
.sg-modal-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.sg-modal-prev { left: 20px; }
.sg-modal-next { right: 20px; }

.sg-modal-prev svg,
.sg-modal-next svg {
    width: 22px;
    height: 22px;
}

.sg-modal-prev:hover,
.sg-modal-next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.08);
}

/* --- Close Button --- */
.sg-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 3;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.sg-modal-close:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.08);
}

/* --- Image Counter --- */
.sg-modal-counter {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.05em;
    background: rgba(0, 0, 0, 0.4);
    padding: 6px 16px;
    border-radius: 100px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sg-masonry {
        column-count: 2;
        column-gap: 10px;
    }
    .sg-item {
        margin-bottom: 10px;
        border-radius: 10px;
    }
    .sg-item img,
    .sg-item-overlay {
        border-radius: 10px;
    }
    .sg-modal-prev { left: 10px; }
    .sg-modal-next { right: 10px; }
    .sg-modal-prev,
    .sg-modal-next {
        width: 40px;
        height: 40px;
    }
    .sg-modal-prev svg,
    .sg-modal-next svg {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .sg-masonry {
        column-count: 1;
        column-gap: 0;
    }
    .sg-item {
        margin-bottom: 12px;
    }
}