.portfolio-archive {
    padding-top: var(--space-5);
    padding-bottom: var(--space-8);
}

.portfolio-archive__title {
    font-size: var(--text-h2);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-ink);
    margin: 0 0 var(--space-7);
}

.portfolio-archive__layout {
    display: flex;
    gap: var(--space-7);
    align-items: flex-start;
}

.portfolio-archive__content {
    flex: 1;
    min-width: 0;
}

.portfolio-sidebar {
    flex-shrink: 0;
    width: 240px;
    position: sticky;
    top: calc(var(--header-height) + var(--space-5));
}

.portfolio-sidebar__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.portfolio-sidebar__link {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: var(--text-body);
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-ink);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;
}

.portfolio-sidebar__link:hover {
    background-color: var(--color-surface);
    color: var(--color-primary);
}

.portfolio-sidebar__link--active {
    background-color: var(--color-graphite);
    color: #ffffff;
}

.portfolio-sidebar__link--active:hover {
    background-color: var(--color-graphite);
    color: #ffffff;
}

.portfolio-category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.portfolio-category-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    background-color: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: box-shadow 0.3s ease-in-out, transform 0.3s ease-in-out;
    box-shadow: 0 2px 8px rgba(38, 38, 38, 0.06);
}

.portfolio-category-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(38, 38, 38, 0.12);
}

.portfolio-category-card__image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background-color: var(--color-surface);
}

.portfolio-category-card__image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portfolio-category-card__name {
    display: block;
    padding: var(--space-4);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-ink);
    text-align: center;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.portfolio-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    background-color: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: box-shadow 0.3s ease-in-out, transform 0.3s ease-in-out;
    box-shadow: 0 2px 8px rgba(38, 38, 38, 0.06);
}

.portfolio-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(38, 38, 38, 0.12);
}

.portfolio-card__image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background-color: var(--color-surface);
}

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

.portfolio-card__title {
    display: block;
    padding: var(--space-4);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-ink);
}

.portfolio-single {
    padding-top: var(--space-5);
    padding-bottom: var(--space-8);
}

.portfolio-single__title {
    font-size: var(--text-h2);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-ink);
    margin: 0 0 var(--space-5);
}

.portfolio-single__layout {
    display: flex;
    gap: var(--space-7);
    align-items: flex-start;
}

.portfolio-single__content {
    flex: 1;
    min-width: 0;
}

.portfolio-single__desc {
    font-size: var(--text-body);
    line-height: 1.6;
    color: var(--color-ink-secondary);
    margin-bottom: var(--space-6);
}

.portfolio-single__gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.portfolio-filters {
    margin-bottom: var(--space-5);
}

.portfolio-filters__form {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.portfolio-filters__text {
    font-size: var(--text-body);
    font-weight: 500;
    color: var(--color-ink-secondary);
    white-space: nowrap;
}

.portfolio-filters__select-wrap {
    position: relative;
    flex: 0 0 auto;
}

.portfolio-filters__select-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px 36px 10px 12px;
    font-family: var(--font-sans);
    font-size: var(--text-body);
    font-weight: 400;
    line-height: 1.4;
    color: var(--color-ink);
    background-color: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color 0.3s ease-in-out;
    text-align: left;
}

.portfolio-filters__select-trigger:hover {
    border-color: var(--color-ink-tertiary);
}

.portfolio-filters__select-trigger.is-open {
    border-color: var(--color-graphite);
}

.portfolio-filters__select-arrow {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    flex-shrink: 0;
    color: var(--color-ink-tertiary);
    transition: transform 0.3s ease-in-out;
    pointer-events: none;
}

.portfolio-filters__select-trigger.is-open .portfolio-filters__select-arrow {
    transform: translateY(-50%) rotate(180deg);
}

.portfolio-filters__select-value {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.portfolio-filters__select-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 30;
    background-color: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 16px rgba(38, 38, 38, 0.1);
}

.portfolio-filters__select-dropdown.is-open {
    display: block;
}

.portfolio-filters__select-option {
    display: block;
    width: 100%;
    padding: 10px 12px;
    font-family: var(--font-sans);
    font-size: var(--text-body);
    font-weight: 400;
    line-height: 1.4;
    color: var(--color-ink);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s ease-in-out, color 0.15s ease-in-out;
}

.portfolio-filters__select-option:hover {
    background-color: var(--color-surface);
}

.portfolio-filters__select-option.is-selected {
    font-weight: 600;
    color: var(--color-primary);
}

.portfolio-filters__select-option:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.portfolio-single__thumb {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-sm);
    overflow: hidden;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    transition: box-shadow 0.3s ease-in-out, transform 0.3s ease-in-out;
    box-shadow: 0 2px 8px rgba(38, 38, 38, 0.06);
}

.portfolio-single__thumb:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(38, 38, 38, 0.12);
}

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

.portfolio-single__showmore-wrap {
    text-align: center;
    margin-top: var(--space-7);
}

.portfolio-single__showmore {
    display: inline-flex;
    align-items: center;
    padding: 12px 32px;
    font-family: var(--font-sans);
    font-size: var(--text-button);
    font-weight: 600;
    line-height: 1;
    color: var(--color-ink);
    background-color: transparent;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.3s ease-in-out, border-color 0.3s ease-in-out;
}

.portfolio-single__showmore:hover {
    background-color: var(--color-surface-alt);
    border-color: var(--color-ink-tertiary);
}

.portfolio-single__showmore.is-hidden {
    display: none;
}

.portfolio-single__thumb-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(38, 38, 38, 0.6);
    font-family: var(--font-sans);
    font-size: var(--text-h3);
    font-weight: 700;
    color: #ffffff;
    pointer-events: none;
}

.portfolio-single__lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.portfolio-single__lightbox--open {
    display: flex;
}

.portfolio-single__lightbox-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.85);
}

.portfolio-single__lightbox-image {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-single__lightbox-image img {
    display: block;
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.portfolio-single__lightbox-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease-in-out;
}

.portfolio-single__lightbox-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.portfolio-single__lightbox-btn--prev {
    left: 20px;
}

.portfolio-single__lightbox-btn--next {
    right: 20px;
}

.portfolio-single__lightbox-btn--prev::after {
    content: '';
    display: block;
    width: 12px;
    height: 12px;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(45deg);
    margin-left: 4px;
}

.portfolio-single__lightbox-btn--next::after {
    content: '';
    display: block;
    width: 12px;
    height: 12px;
    border-right: 2px solid #fff;
    border-top: 2px solid #fff;
    transform: rotate(45deg);
    margin-right: 4px;
}

.portfolio-single__lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 2;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease-in-out;
}

.portfolio-single__lightbox-close:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.portfolio-single__lightbox-close::after {
    content: '';
    display: block;
    width: 16px;
    height: 16px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none'%3E%3Cpath d='M1 1l14 14M15 1L1 15' stroke='%23fff' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center;
}

@media (max-width: 1279px) {
    .portfolio-archive__layout {
        flex-direction: column;
    }

    .portfolio-sidebar {
        width: 100%;
        position: static;
    }

    .portfolio-sidebar__list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .portfolio-category-grid,
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .portfolio-archive {
        padding-top: var(--space-7);
        padding-bottom: var(--space-7);
    }

    .portfolio-archive__title {
        margin-bottom: var(--space-5);
    }

    .portfolio-category-grid,
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-5);
    }

    .portfolio-single__layout {
        flex-direction: column;
    }

    .portfolio-single__gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-5);
    }

    .portfolio-single__lightbox-btn {
        width: 36px;
        height: 36px;
    }

    .portfolio-single__lightbox-btn--prev {
        left: 10px;
    }

    .portfolio-single__lightbox-btn--next {
        right: 10px;
    }
}