/* Projects gallery page (dark, as on the live site) */
body.post-type-archive-portfolio, body.single-portfolio { background: var(--color-primary); color: var(--color-bg); }
body.post-type-archive-portfolio .site-footer__card, body.single-portfolio .site-footer__card { border: var(--border-width) solid color-mix(in srgb, var(--color-bg) 10%, transparent); }

.portfolio-page { position: relative; isolation: isolate; padding-block: var(--space-7) var(--section-gap); }
.portfolio-page::before { content: ""; position: absolute; inset-inline-end: -10%; top: -10%; width: 50vw; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--color-secondary) 30%, transparent), transparent 65%); z-index: -1; pointer-events: none; }
.portfolio-page__head { position: relative; display: grid; place-items: center; padding-block: var(--space-6) var(--space-5); text-align: center; }
.portfolio-page__ghost { position: absolute; inset: 50% 0 auto; translate: 0 -50%; font-size: clamp(4rem, 2rem + 11vw, 12rem); font-weight: var(--weight-heavy, 900); line-height: 1; letter-spacing: 0.02em; color: color-mix(in srgb, var(--color-bg) 6%, transparent); pointer-events: none; user-select: none; }
.portfolio-page__head .section-title { position: relative; margin: 0; }

.portfolio-filter { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-block: var(--space-5) var(--space-7); }
.portfolio-filter__btn { min-height: 48px; padding: var(--space-2) var(--space-6); border: var(--border-width) solid color-mix(in srgb, var(--color-bg) 30%, transparent); border-radius: var(--radius-pill); background: transparent; color: var(--color-bg); font-weight: var(--weight-bold); cursor: pointer; transition: background-color 0.3s, color 0.3s, border-color 0.3s; }
.portfolio-filter__btn:hover { border-color: var(--color-secondary); }
.portfolio-filter__btn[aria-pressed="true"] { background: var(--color-bg); color: var(--color-primary); border-color: var(--color-bg); }

/* Cards on a dark background */
.portfolio-page .project-card__title { color: var(--color-bg); }
.portfolio-page .project-card__text { color: color-mix(in srgb, var(--color-bg) 65%, transparent); }
.project-card.is-hidden { display: none; }
.js .project-card.is-filtered-in { animation: card-in 0.6s var(--ease-out) both; }
@keyframes card-in { from { opacity: 0; transform: translateY(16px) scale(0.98); } }
.portfolio-page__term { margin-block-start: var(--space-3); font-size: 0.45em; font-weight: var(--weight-bold); }