.portfolio-section {
  padding: 88px max(20px, calc((100% - 1180px) / 2)) 76px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.portfolio-section .section-heading {
  grid-template-columns: minmax(16px, 1fr) minmax(0, auto) minmax(16px, 1fr);
  margin-bottom: 20px;
}
.portfolio-section .section-kicker { font-size: .875rem; letter-spacing: .12em; }
.portfolio-intro { max-width: 660px; margin: 0 auto 38px; text-align: center; color: var(--muted); font-size: 1rem; line-height: 1.65; }
.portfolio-track { display: grid; gap: 32px; }
.portfolio-page { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; min-width: 0; }
.portfolio-item { min-width: 0; margin: 0; }
.portfolio-thumbnail { display: block; position: relative; aspect-ratio: 1; border: 1px solid var(--line); background: var(--cream); cursor: zoom-in; }
.portfolio-thumbnail img { width: 100%; height: 100%; display: block; object-fit: contain; }
.portfolio-thumbnail:hover, .portfolio-thumbnail:focus-visible { border-color: var(--gold); box-shadow: 0 12px 28px rgba(6,26,61,.12); }
.portfolio-zoom-hint { display: grid; place-items: center; position: absolute; right: 9px; bottom: 9px; width: 34px; height: 34px; color: white; background: var(--navy); border: 1px solid var(--gold-light); }
.portfolio-zoom-hint svg { width: 18px; height: 18px; }
.portfolio-item figcaption { display: grid; gap: 5px; margin-top: 15px; }
.portfolio-category { color: var(--muted); font-size: .875rem; line-height: 1.4; }
.portfolio-name { color: var(--navy); font-size: 1rem; font-weight: 800; line-height: 1.4; }
.portfolio-thumbnail:focus-visible { outline-offset: -4px; }
.portfolio-section.is-enhanced .portfolio-viewport { overflow: hidden; touch-action: pan-y pinch-zoom; }
.portfolio-section.is-enhanced .portfolio-track { display: flex; gap: 0; transition: transform .36s ease; }
.portfolio-section.is-enhanced .portfolio-page { flex: 0 0 100%; }
.portfolio-controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line); }
.portfolio-page-status { margin: 0; color: var(--muted); font-size: .875rem; line-height: 1.5; }
.portfolio-pagination { display: flex; align-items: center; gap: 8px; }
.portfolio-control, .portfolio-page-button, .portfolio-zoom-button, .portfolio-original {
  min-width: 44px; min-height: 44px; padding: 9px 12px; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: .875rem; line-height: 1.4; font-weight: 700; cursor: pointer;
  border: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--navy);
}
.portfolio-control svg { width: 22px; height: 22px; }
.portfolio-section svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.portfolio-page-button[aria-current="page"] { color: white; background: var(--navy); border-color: var(--navy); }
.portfolio-control:hover, .portfolio-page-button:hover { border-color: var(--gold); color: var(--navy); background: var(--gold-light); }
.portfolio-section [hidden] { display: none !important; }

.portfolio-lightbox {
  position: fixed; inset: 0; width: 100%; max-width: none; height: 100vh; height: 100dvh; max-height: none;
  margin: 0; padding: 20px max(20px, env(safe-area-inset-right)) 20px max(20px, env(safe-area-inset-left));
  color: white; background: rgba(3, 15, 35, .97); border: 0; overflow: hidden;
}
.portfolio-lightbox:not([open]) { display: none; }
.portfolio-lightbox::backdrop { background: rgba(3, 15, 35, .85); }
.portfolio-lightbox-shell { height: 100%; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; gap: 16px; }
.portfolio-lightbox-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.portfolio-lightbox-toolbar h3 { margin: 0; font-size: 1.1rem; line-height: 1.35; color: white; }
.portfolio-lightbox-tools { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.portfolio-lightbox .portfolio-control, .portfolio-zoom-button, .portfolio-original { color: white; border-color: rgba(255,255,255,.3); }
.portfolio-lightbox .portfolio-control:hover, .portfolio-zoom-button:hover, .portfolio-original:hover { color: var(--navy); background: var(--gold-light); border-color: var(--gold-light); }
.portfolio-zoom-button[aria-pressed="true"] { background: var(--gold-light); color: var(--navy); }
.portfolio-zoom-button:disabled { cursor: default; opacity: .45; }
.portfolio-lightbox-stage { min-width: 0; min-height: 0; position: relative; display: flex; overflow: auto; overscroll-behavior: contain; }
.portfolio-lightbox-stage img { display: block; flex: none; width: auto; height: auto; max-width: 100%; max-height: 100%; margin: auto; }
.portfolio-lightbox-stage.is-zoomed img { width: var(--portfolio-original-width); max-width: none; height: auto; max-height: none; }
.portfolio-image-status { margin: auto; padding: 24px; max-width: 620px; text-align: center; line-height: 1.6; }
.portfolio-lightbox-bottom { display: flex; align-items: center; justify-content: center; gap: 24px; padding-bottom: env(safe-area-inset-bottom); }
.portfolio-lightbox-bottom p { margin: 0; text-align: center; color: rgba(255,255,255,.8); font-size: .875rem; line-height: 1.5; }

@media (max-width: 1100px) {
  .site-header .brand > span:last-child { display: none; }
}
@media (max-width: 900px) {
  .portfolio-page { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .portfolio-section { padding: 64px 20px 58px; }
  .portfolio-section .section-heading { gap: 12px; }
  .portfolio-section .section-heading h2 { font-size: clamp(1.65rem, 7vw, 2rem); letter-spacing: .02em; }
  .portfolio-section .section-kicker { font-size: .875rem; letter-spacing: .04em; }
  .portfolio-page { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 14px; }
  .portfolio-item:last-child { grid-column: 1 / -1; width: calc((100% - 14px) / 2); justify-self: center; }
  .portfolio-controls { flex-direction: column; }
  .portfolio-lightbox { padding: max(12px, env(safe-area-inset-top)) 12px 12px; }
  .portfolio-lightbox-shell { gap: 12px; }
  .portfolio-lightbox-toolbar { flex-wrap: wrap; gap: 10px; }
  .portfolio-lightbox-toolbar h3 { width: 100%; }
  .portfolio-lightbox-tools { width: 100%; }
  .portfolio-lightbox-tools [data-image-close] { margin-left: auto; }
  .portfolio-lightbox-bottom { gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .portfolio-section.is-enhanced .portfolio-track { transition: none; }
}