.portfolio-section {
    padding: clamp(3.5rem, 7vw, 6rem) 0;
    border-block: 1px solid var(--color-border-blue);
    background: var(--color-bg-section);
    color: var(--color-text-main);
}

.portfolio-heading {
    max-width: 760px;
    margin-bottom: 2rem;
}

.portfolio-eyebrow,
.portfolio-card-category {
    color: var(--color-primary-light);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.portfolio-heading .section-title {
    margin-bottom: .85rem;
    color: var(--color-text-main);
    text-align: left;
}

.portfolio-heading > p:last-child,
.portfolio-card-content > p,
.portfolio-case-summary,
.portfolio-source {
    color: var(--color-text-soft);
    line-height: 1.7;
}

.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
    margin-bottom: 1.75rem;
}

.portfolio-filter {
    min-height: 44px;
    padding: .55rem 1rem;
    border: 1px solid var(--color-border-blue);
    border-radius: var(--radius-pill);
    background: var(--color-bg-card);
    color: var(--color-text-main);
    font-weight: 600;
}

.portfolio-filter[aria-pressed="true"] {
    border-color: var(--color-primary-light);
    background: var(--color-primary-dark);
}

.portfolio-filter:hover {
    border-color: var(--color-primary-light);
}

.portfolio-filter:focus-visible,
.portfolio-card-action:focus-visible,
.portfolio-quote:focus-visible,
.portfolio-compare-range:focus-visible {
    outline: 3px solid var(--focus-color);
    outline-offset: 3px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.portfolio-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-card);
    box-shadow: var(--shadow-card);
}

.portfolio-card[hidden] {
    display: none !important;
}

.portfolio-card-image {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    background: var(--color-bg-section);
}

.portfolio-card-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
    gap: .7rem;
    padding: clamp(1.25rem, 3vw, 1.75rem);
}

.portfolio-card-content > * {
    margin: 0;
}

.portfolio-card-content h3 {
    color: var(--color-text-main);
    font-size: 1.3rem;
    line-height: 1.35;
}

.portfolio-card-summary {
    flex-grow: 1;
}

.portfolio-card-content strong {
    color: var(--color-text-main);
}

.portfolio-card-result {
    padding-top: .6rem;
    border-top: 1px solid var(--color-border);
}

.portfolio-card-action {
    min-height: 44px;
    max-width: 100%;
    margin-top: auto;
    white-space: normal;
}

.portfolio-modal .modal-content {
    background: var(--color-bg-card);
    color: var(--color-text-main);
}

.portfolio-modal .modal-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 44px;
    gap: .75rem;
    align-items: start;
}

.portfolio-modal .modal-title {
    min-width: 0;
    overflow-wrap: anywhere;
}

.portfolio-modal .btn-close {
    box-sizing: border-box;
    width: 44px;
    height: 44px;
    margin: 0;
    padding: .7rem;
}

.portfolio-modal .modal-body {
    overflow-x: hidden;
}

.portfolio-modal .modal-footer {
    gap: .65rem;
    background: var(--color-bg-card);
}

.portfolio-case-summary {
    margin-bottom: 1rem;
}

.portfolio-case-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.portfolio-case-facts > div {
    min-width: 0;
    padding: .75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.portfolio-case-facts dt {
    color: var(--color-primary-light);
    font-size: .85rem;
    font-weight: 700;
}

.portfolio-case-facts dd {
    margin: .3rem 0 0;
    color: var(--color-text-main);
    overflow-wrap: anywhere;
}

.portfolio-compare {
    max-width: 100%;
    margin: 0;
}

.portfolio-single {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.portfolio-single img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 620px;
    margin-inline: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.portfolio-compare-stage {
    position: relative;
    width: min(100%, var(--portfolio-max-width, 760px));
    aspect-ratio: var(--portfolio-aspect);
    margin-inline: auto;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-main);
    cursor: ew-resize;
    touch-action: pan-y;
    user-select: none;
}

.portfolio-compare-stage .portfolio-compare-image {
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: contain;
    pointer-events: none;
    user-select: none;
}

.portfolio-compare-before-layer {
    position: absolute;
    inset: 0;
    clip-path: inset(0 calc(100% - var(--portfolio-split)) 0 0);
}

.portfolio-compare-tag {
    position: absolute;
    top: .75rem;
    padding: .25rem .6rem;
    border-radius: var(--radius-sm);
    background: rgba(5, 7, 10, .84);
    color: #fff;
    font-size: .8rem;
    font-weight: 700;
    pointer-events: none;
}

.portfolio-compare-tag-before { left: .75rem; }
.portfolio-compare-tag-after { right: .75rem; }

.portfolio-compare-divider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--portfolio-split);
    width: 3px;
    transform: translateX(-50%);
    background: #fff;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .3);
    pointer-events: none;
}

.portfolio-compare-divider::after {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 32px;
    height: 32px;
    border: 2px solid #fff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-primary-dark);
    content: '↔';
    color: #fff;
    font-size: 1.25rem;
    line-height: 27px;
    text-align: center;
}

.portfolio-compare-controls {
    max-width: 700px;
    margin: 1rem auto 0;
}

.portfolio-compare-controls label {
    display: block;
    margin-bottom: .3rem;
    color: var(--color-text-main);
    font-weight: 600;
}

.portfolio-compare-range {
    display: block;
    width: 100%;
    min-height: 44px;
    accent-color: var(--color-primary-light);
    cursor: ew-resize;
}

.portfolio-compare-ends {
    display: flex;
    justify-content: space-between;
    color: var(--color-text-soft);
    font-size: .85rem;
}

.portfolio-source {
    margin: 1rem 0 0;
    font-size: .9rem;
}

@media (max-width: 991.98px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .portfolio-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (min-width: 576px) and (max-height: 400px) {
    .portfolio-modal .modal-footer {
        display: grid;
        grid-template-columns: auto minmax(0, 1fr);
        align-items: center;
    }

    .portfolio-modal .portfolio-quote {
        font-size: .9rem;
        line-height: 1.25;
    }
}

@media (max-width: 575.98px) {
    .portfolio-filters {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding: .25rem .2rem .6rem;
        scrollbar-width: thin;
    }

    .portfolio-filter {
        flex: 0 0 auto;
    }

    .portfolio-modal .modal-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .portfolio-modal .modal-footer .btn {
        width: 100%;
        min-height: 44px;
        white-space: normal;
    }
}