.portfolio-hero {
    padding: clamp(6rem, 12vw, 9rem) 0 clamp(2rem, 4vw, 3rem);
    background:
        linear-gradient(180deg, rgba(12, 13, 27, 0) 8%, var(--ld-bg-solid) 52%),
        url("../assets/images/about/about-hero-bg.jpg") top center / cover no-repeat;
    background-color: var(--ld-bg-solid);
}

.portfolio-hero__title {
    margin: 0 0 1rem;
    font-family: var(--ld-font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--ld-text);
}

.portfolio-hero__lead {
    margin: 0;
    max-width: 46rem;
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--ld-text-muted);
}

.portfolio-hero__lead a {
    color: var(--ld-accent);
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

.portfolio-layout {
    padding: var(--ld-gutter) 0 clamp(3rem, 5vw, 5rem);
}

.portfolio-layout__grid {
    display: grid;
    gap: 2rem;
}

.portfolio-filters {
    padding: 1.25rem;
    border: 1px solid var(--ld-border);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.03);
}

.portfolio-filter__group + .portfolio-filter__group {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--ld-border);
}

.portfolio-filter__heading {
    margin: 0 0 0.75rem;
    font-family: var(--ld-font-display);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ld-text);
}

.portfolio-filter__options {
    display: grid;
    gap: 0.45rem;
}

.portfolio-filter__check {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.95rem;
    color: var(--ld-text-muted);
    cursor: pointer;
}

.portfolio-filter__check input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--ld-accent);
}

.portfolio-filter__clear {
    margin-top: 1.25rem;
    padding: 0.65rem 1rem;
    border: 1px solid var(--ld-border);
    border-radius: 999px;
    background: transparent;
    color: var(--ld-text);
    font: inherit;
    cursor: pointer;
}

.portfolio-filter__clear:hover,
.portfolio-filter__clear:focus-visible {
    border-color: var(--ld-accent);
    color: var(--ld-accent);
}

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

.portfolio-card {
    display: grid;
    gap: 1rem;
}

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

.portfolio-card__media {
    display: block;
    overflow: hidden;
    border-radius: 12px;
}

.portfolio-card__image {
    width: 100%;
    aspect-ratio: 1032 / 1439;
    object-fit: cover;
    transition: transform 0.25s ease;
}

.portfolio-card__media:hover .portfolio-card__image,
.portfolio-card__media:focus-visible .portfolio-card__image {
    transform: scale(1.02);
}

.portfolio-card__title {
    margin: 0 0 0.35rem;
    font-family: var(--ld-font-display);
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.portfolio-card__title a {
    color: var(--ld-text);
}

.portfolio-card__title a:hover,
.portfolio-card__title a:focus-visible {
    color: var(--ld-accent);
}

.portfolio-card__categories {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--ld-accent);
}

@media (min-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1100px) {
    .portfolio-layout__grid {
        grid-template-columns: 260px minmax(0, 1fr);
        align-items: start;
    }

    .portfolio-filters {
        position: sticky;
        top: 6rem;
    }

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