/* Projektportfolio: ausschließlich Startseiten-Einblicke und Projektseiten. */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: start;
  gap: clamp(64px, 7vw, 110px) clamp(18px, 2.8vw, 44px);
  padding-top: 35px;
}
.portfolio-card { min-width: 0; }
.portfolio-grid > .portfolio-card:nth-child(4n + 1) { grid-column: 1 / 8; }
.portfolio-grid > .portfolio-card:nth-child(4n + 2) { grid-column: 9 / 13; padding-top: 140px; }
.portfolio-grid > .portfolio-card:nth-child(4n + 3) { grid-column: 2 / 6; }
.portfolio-grid > .portfolio-card:nth-child(4n + 4) { grid-column: 7 / 13; padding-top: 90px; }
.portfolio-card__image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  background: var(--paper-deep);
  outline: 1px solid transparent;
  transition: outline-color .3s ease;
}
.portfolio-card__image img { width: 100%; height: 100%; object-fit: contain; }
.portfolio-grid > .portfolio-card:nth-child(4n + 2) .portfolio-card__image,
.portfolio-grid > .portfolio-card:nth-child(4n + 3) .portfolio-card__image { aspect-ratio: 3 / 4; }
.portfolio-card__open {
  position: absolute;
  right: 14px;
  bottom: 14px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font-size: 20px;
  transition: color .25s ease, background .25s ease, transform .3s var(--ease);
}
.portfolio-card__caption { padding-top: 19px; }
.portfolio-card__meta { display: flex; justify-content: space-between; gap: 14px; padding-bottom: 13px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 9px; letter-spacing: .09em; line-height: 1.5; text-transform: uppercase; }
.portfolio-card__meta > span:first-child { color: var(--brass); }
.portfolio-card__meta > span:last-child { flex-shrink: 0; }
.portfolio-card__title { margin-top: 15px; font-size: clamp(22px, 2.1vw, 30px); letter-spacing: -.045em; line-height: 1.2; }
.portfolio-card__title a { transition: color .25s ease; }
.portfolio-card__caption > p { max-width: 510px; margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.65; }
@media (hover: hover) {
  .portfolio-card__image:hover { outline-color: var(--brass); }
  .portfolio-card__image:hover .portfolio-card__open,
  .portfolio-gallery__image:hover .portfolio-card__open { transform: translate(2px, -2px); background: var(--ink); color: var(--paper); }
  .portfolio-card__title a:hover { color: var(--graphite); }
}

/* Alle Projekte auf der Startseite, ohne eine endlose Bilderliste. */
.projects-teaser--portfolio .projects-teaser__layout { grid-template-columns: .72fr 1.28fr; align-items: start; gap: 6%; }
.projects-teaser--portfolio .projects-teaser__layout > div:first-child { max-width: none; }
.projects-teaser--portfolio .projects-teaser__layout > div:first-child h2 { font-size: clamp(38px, 4.5vw, 61px); }
.projects-teaser--portfolio .projects-teaser__layout > div:first-child > p:not(.eyebrow) { max-width: 370px; }
.portfolio-selection { min-width: 0; }
.portfolio-selection__rail { display: flex; gap: 26px; overflow-x: auto; padding: 3px 3px 18px; scroll-snap-type: x mandatory; overscroll-behavior-x: contain; scrollbar-width: thin; scrollbar-color: var(--brass) transparent; }
.portfolio-card--teaser { flex: 0 0 78%; scroll-snap-align: start; }
.portfolio-card--teaser .portfolio-card__image { aspect-ratio: 4 / 3; background: var(--paper-deep); }
.portfolio-card--teaser .portfolio-card__title { font-size: 23px; }
.projects-teaser--portfolio .portfolio-card__caption > p { margin-bottom: 0; font-size: 12px; }
.portfolio-selection__controls { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 20px; color: var(--muted); font-size: 10px; letter-spacing: .05em; }
.portfolio-selection__controls > div { display: flex; gap: 8px; }
.portfolio-selection__controls button { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; font-size: 20px; }
.portfolio-selection__controls button:disabled { opacity: .3; cursor: default; }
.portfolio-selection__controls button:not(:disabled):hover { border-color: var(--brass); }

/* Mehrere Perspektiven sind ein Projekt, nicht mehrere Referenzen. */
.project-detail--portfolio .project-detail__intro { max-width: 900px; margin-bottom: 50px; }
.portfolio-gallery { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); align-items: start; gap: 64px 32px; }
.portfolio-gallery__item { min-width: 0; grid-column: span 6; }
.portfolio-gallery__item:first-child { grid-column: 1 / 9; }
.portfolio-gallery__item:nth-child(2) { grid-column: 9 / 13; padding-top: 110px; }
.portfolio-gallery__item:nth-child(3) { grid-column: 2 / 7; }
.portfolio-gallery__item:nth-child(4) { grid-column: 8 / 13; padding-top: 80px; }
.portfolio-gallery__item:only-child { grid-column: 2 / 12; }
.portfolio-gallery__image { position: relative; display: block; background: var(--paper-deep); }
.portfolio-gallery__image img { width: 100%; height: auto; max-height: 760px; object-fit: contain; }
.portfolio-gallery__item figcaption { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 14px; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; letter-spacing: .04em; }
.portfolio-gallery__item figcaption > span:last-child { color: var(--brass); }

/* Native Dialog-Semantik: Fokusfalle und Escape durch den Browser. */
.portfolio-dialog { width: min(1100px, calc(100% - 48px)); max-height: calc(100svh - 48px); padding: 24px 28px; overflow: auto; border: 1px solid var(--line); background: var(--paper); color: var(--ink); }
.portfolio-dialog::backdrop { background: rgba(15, 16, 16, .86); backdrop-filter: blur(6px); }
.portfolio-dialog__header { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.portfolio-dialog__header p { font-family: var(--display); font-size: 17px; line-height: 1.4; letter-spacing: -.03em; }
.portfolio-dialog button { min-height: 44px; padding: 8px 14px; border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; font-size: 12px; }
.portfolio-dialog button:hover { border-color: var(--brass); }
.portfolio-dialog button:disabled { opacity: .3; cursor: default; }
.portfolio-dialog__close { flex-shrink: 0; }
.portfolio-dialog__close span { margin-left: 8px; font-size: 20px; }
.portfolio-dialog__figure { margin-top: 20px; }
.portfolio-dialog__figure img { width: 100%; height: min(65svh, 760px); object-fit: contain; }
.portfolio-dialog__figure figcaption { max-width: 760px; margin: 16px auto 0; color: var(--muted); font-size: 12px; line-height: 1.5; text-align: center; }
.portfolio-dialog__controls { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 20px; }
.portfolio-dialog__controls output { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.portfolio-dialog__controls button { display: inline-flex; align-items: center; gap: 14px; }
html:has(.portfolio-dialog[open]) { overflow: hidden; }

@media (max-width: 980px) {
  .portfolio-grid { gap: 64px 24px; }
  .portfolio-grid > .portfolio-card:nth-child(4n + 1) { grid-column: 1 / 8; }
  .portfolio-grid > .portfolio-card:nth-child(4n + 2) { grid-column: 8 / 13; padding-top: 90px; }
  .portfolio-grid > .portfolio-card:nth-child(4n + 3) { grid-column: 1 / 6; }
  .portfolio-grid > .portfolio-card:nth-child(4n + 4) { grid-column: 6 / 13; padding-top: 60px; }
  .portfolio-card__title { font-size: 23px; }
  .portfolio-card__meta { font-size: 8px; letter-spacing: .04em; }
  .projects-teaser--portfolio .projects-teaser__layout { grid-template-columns: 1fr; gap: 38px; }
  .portfolio-card--teaser { flex-basis: 53%; }
  .portfolio-gallery { gap: 44px 24px; }
  .portfolio-gallery__item:first-child { grid-column: 1 / 8; }
  .portfolio-gallery__item:nth-child(2) { grid-column: 8 / 13; padding-top: 65px; }
}
@media (max-width: 600px) {
  .portfolio-grid { display: block; padding-top: 12px; }
  .portfolio-grid > .portfolio-card { padding-top: 0; margin: 0 0 50px; }
  .portfolio-grid > .portfolio-card:nth-child(even) { margin-left: 8%; }
  .portfolio-grid > .portfolio-card:last-child { margin-bottom: 0; }
  .portfolio-grid > .portfolio-card .portfolio-card__image { aspect-ratio: 4 / 5; }
  .portfolio-grid > .portfolio-card:nth-child(odd) .portfolio-card__image { aspect-ratio: 4 / 3; }
  .portfolio-card__caption { padding-top: 15px; }
  .portfolio-card__title { font-size: 24px; }
  .portfolio-card__caption > p { font-size: 13px; }
  .portfolio-card__meta { font-size: 8px; }
  .portfolio-card__open { width: 36px; height: 36px; right: 10px; bottom: 10px; }
  .projects-teaser--portfolio .projects-teaser__layout { gap: 32px; }
  .portfolio-card--teaser { flex-basis: 88%; }
  .portfolio-selection__rail { gap: 18px; }
  .portfolio-card--teaser .portfolio-card__title { font-size: 22px; }
  .portfolio-gallery { grid-template-columns: 1fr 1fr; gap: 36px 16px; }
  .portfolio-gallery > .portfolio-gallery__item { grid-column: 1 / -1; padding-top: 0; }
  .portfolio-gallery > .portfolio-gallery__item:not(:first-child) { margin-left: 6%; }
  .portfolio-gallery__item figcaption { font-size: 9px; }
  .project-detail--portfolio .project-detail__intro h1 { font-size: clamp(38px, 10vw, 55px); overflow-wrap: break-word; }
  .project-detail--portfolio .project-detail__intro { margin-bottom: 32px; }
  .portfolio-dialog { width: calc(100% - 20px); max-height: calc(100svh - 20px); padding: 14px; }
  .portfolio-dialog__header { gap: 12px; }
  .portfolio-dialog__header p { font-size: 13px; }
  .portfolio-dialog__close { font-size: 0 !important; padding-inline: 14px !important; }
  .portfolio-dialog__close span { margin-left: 0; }
  .portfolio-dialog__figure img { height: 57svh; }
  .portfolio-dialog__figure figcaption { font-size: 11px; }
  .portfolio-dialog__controls { gap: 10px; }
}

/* Mikrointeraktionen erhalten Bildflächen und vollständige Motive. */
.portfolio-card__image:focus-visible,
.portfolio-gallery__image:focus-visible { outline: 2px solid var(--ink); outline-offset: 5px; }
.portfolio-card__image:focus-visible .portfolio-card__open,
.portfolio-gallery__image:focus-visible .portfolio-card__open { background: var(--ink); color: var(--paper); }
.portfolio-card__meta { position: relative; }
.portfolio-card__meta::after { position: absolute; bottom: -1px; left: 0; width: 45px; height: 1px; background: var(--brass); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); content: ''; }
@media (hover: hover) {
  .portfolio-card:hover .portfolio-card__meta::after { transform: scaleX(1); }
}
.portfolio-card:focus-within .portfolio-card__meta::after { transform: scaleX(1); }
@media (prefers-reduced-motion: reduce) {
  .portfolio-card__meta::after { transition: none; }
}