/* ==========================================================================
   DESIGN ARCHIVE PAGE
   ========================================================================== */
.design-archive {
    max-width: var(--about-max-width);
    margin: 0 auto;
    padding: 60px 28px 120px;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 17px;
    font-weight: 400;
    color: var(--color-muted);
    margin-bottom: 40px;
    transition: color 0.2s ease;
}

.back-btn:hover {
    color: var(--color-text);
}

.archive-title {
    font-family: var(--font-body);
    font-weight: 800;
    font-size: clamp(32px, 4.5vw, 52px);
    margin-bottom: 30px;
    display: flex;
    align-items: baseline;
    gap: 14px;
    flex-wrap: wrap;
}

.archive-title span {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 17px;
    color: var(--color-muted);
}

/* --- masonry grid (CSS columns, no JS library needed) --- */
.masonry-grid {
    column-count: 3;
    column-gap: 20px;
}

.grid-item {
    break-inside: avoid;
    margin-bottom: 20px;
    border-radius: 14px;
    overflow: hidden;
    cursor: pointer;
}

.grid-item-inner {
    position: relative;
}

.grid-item-inner img {
    width: 100%;
    height: auto;
    transition: transform 0.4s ease;
}

.grid-item:hover .grid-item-inner img {
    transform: scale(1.05);
}

.grid-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.15) 55%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.grid-item:hover .grid-item-overlay,
.grid-item:focus-visible .grid-item-overlay {
    opacity: 1;
}

.grid-item-overlay .category {
    font-size: 11px;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 4px;
}

.grid-item-overlay .title {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    line-height: 1.4;
}

/* --- modal --- */
.design-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 12, 0.72);
    backdrop-filter: blur(6px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.design-modal-backdrop[hidden] {
    display: none;
}

.design-modal {
    background: var(--color-bg);
    border-radius: 20px;
    max-width: 720px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: 20px 20px 32px;
}

.modal-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 5;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
}

.modal-close-btn:hover {
    transform: scale(1.08);
}

.modal-image-wrap {
    position: relative;
    margin: 0 auto 24px;
    border-radius: 14px;
    overflow: hidden;
    background: #f4f1ec;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    min-height: 240px;
}

.modal-img-base,
.modal-fade-img {
    max-width: 100%;
    max-height: 70vh;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.modal-fade-img {
    position: absolute;
    inset: 0;
    opacity: 1;
    transition-property: opacity;
    transition-timing-function: ease;
}

.modal-fade-img.fade-out {
    opacity: 0;
}

.modal-fade-img[hidden] {
    display: none;
}

.modal-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.modal-arrow:hover {
    background: rgba(0, 0, 0, 0.75);
}

.modal-arrow[hidden] {
    display: none;
}

.modal-arrow-left {
    left: 14px;
}

.modal-arrow-right {
    right: 14px;
}

.modal-image-count {
    position: absolute;
    bottom: 14px;
    right: 14px;
    z-index: 5;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 999px;
}

.modal-image-count[hidden] {
    display: none;
}

.modal-info {
    padding: 0 8px;
}

.modal-info .category {
    display: inline-block;
    font-size: 11px;
    tracking: 0.04em;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 4px 12px;
    margin-bottom: 12px;
}

.modal-info .title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.4;
}

.description-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.description-list li {
    font-family: var(--font-desc);
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-muted);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
    .masonry-grid {
        column-count: 2;
    }
}

@media (max-width: 560px) {
    .masonry-grid {
        column-count: 1;
    }

    .design-modal {
        padding: 16px 16px 24px;
    }
}

@media (prefers-reduced-motion: reduce) {

    .modal-fade-img,
    .grid-item-inner img,
    .grid-item-overlay {
        transition: none;
    }
}