/* =====================================================================
   NEURA — portfolio archive + case study
   Loaded only on portfolio/project screens.
   ===================================================================== */

/* ---------------------------------------------------------------
   Filter bar
   --------------------------------------------------------------- */
.filters {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; flex-wrap: wrap;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.filters__list { display: flex; flex-wrap: wrap; gap: .5rem; }
.filter {
  padding: .6rem 1.1rem;
  min-height: 44px;
  display: inline-flex; align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--tx-2);
  /* Matches the button scale so the filter row does not read a size smaller
     than the buttons beside it on a wide screen. */
  font-size: var(--t-btn); font-weight: 500;
  transition: color var(--d) ease, border-color var(--d) ease, background-color var(--d) ease;
}
.filter b { font-variant-numeric: tabular-nums; font-weight: 500; opacity: .5; margin-left: .45rem; font-size: .8em; }
@media (hover: hover) and (pointer: fine) {
  .filter:hover { color: var(--tx); border-color: var(--line-2); }
}
.filter[aria-pressed="true"] {
  background: var(--ac); border-color: var(--ac); color: var(--ac-ink); font-weight: 600;
}
.filter[aria-pressed="true"] b { opacity: .55; }
.filters__count { font-size: var(--t-sm); color: var(--tx-3); font-variant-numeric: tabular-nums; }

/* results region swaps content; hold height so the page doesn't jump */
.results { position: relative; min-height: 30vh; }
.results[aria-busy="true"] { opacity: .38; transition: opacity var(--d) ease; pointer-events: none; }
.results[aria-busy="true"]::after {
  content: '';
  position: absolute; top: 3rem; left: 50%;
  width: 26px; height: 26px; margin-left: -13px;
  border: 2px solid var(--line-2); border-top-color: var(--ac);
  border-radius: 50%;
  animation: neura-spin .7s linear infinite;
}
@keyframes neura-spin { to { transform: rotate(360deg); } }

.load-more-wrap { display: flex; justify-content: center; margin-top: clamp(2.5rem, 5vw, 4rem); }

/* portfolio grid is a touch denser than the homepage teaser grid */
.proj-grid--archive { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 1180px) {
  .proj-grid--archive { grid-template-columns: repeat(3, 1fr); }
  .proj-grid--archive .proj--wide { grid-column: span 2; }
}

/* ---------------------------------------------------------------
   Page hero shared by portfolio / services / about / contact
   --------------------------------------------------------------- */
/* .case-* moved to neura-inner.css; .page-hero and .crumbs to neura.css — every inner page uses them,
   and this stylesheet only loads on portfolio screens. */

/* ---------------------------------------------------------------
   Case study
   --------------------------------------------------------------- */
.case-hero { padding-top: calc(var(--header-h) + clamp(2.5rem, 6vw, 5rem)); }
.case-hero__meta { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; align-items: center; margin-bottom: 1.5rem; }
.case-hero h1 { max-width: 18ch; }
.case-hero__sub { margin-top: 1.5rem; max-width: 56ch; font-size: var(--t-md); color: var(--tx-2); }


.case-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-top: clamp(2rem, 4vw, 3rem);
}
.case-fact { background: var(--bg); padding: clamp(1.25rem, 2.5vw, 1.75rem); }
.case-fact dt { font-size: var(--t-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--tx-3); }
.case-fact dd { font-family: var(--f-display); font-weight: 700; font-size: var(--t-sm); margin-top: .5rem; letter-spacing: -.01em; }
.case-fact dd a { color: var(--ac); }



.case-results { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.result-card {
  padding: clamp(1.5rem, 3vw, 2rem);
  border: 1px solid var(--ac-line);
  border-radius: var(--r-lg);
  background: var(--ac-soft);
}
.result-card b { display: block; font-family: var(--f-display); font-size: var(--t-xl); font-weight: 700; letter-spacing: -.035em; color: var(--ac); line-height: 1; }
.result-card span { display: block; font-size: var(--t-sm); color: var(--tx-2); margin-top: .65rem; }

/* gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: clamp(.75rem, 1.5vw, 1.25rem); }
.gallery__item {
  position: relative; overflow: hidden;
  border-radius: var(--r-lg); border: 1px solid var(--line);
  background: var(--surface);
  aspect-ratio: 4 / 3;
  width: 100%;
  display: block;
}
.gallery__item.is-wide { grid-column: span 2; aspect-ratio: 16 / 9; }
@media (max-width: 700px) { .gallery__item.is-wide { grid-column: span 1; aspect-ratio: 4 / 3; } }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform 520ms var(--e-out); }
.gallery__item::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, .55), transparent 55%);
  opacity: 0; transition: opacity var(--d) ease;
}
.gallery__zoom {
  position: absolute; right: .9rem; bottom: .9rem; z-index: 2;
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 50%; border: 1px solid var(--line-2);
  background: rgba(7, 7, 8, .7);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  color: var(--tx);
  opacity: 0; transform: translateY(6px);
  transition: opacity var(--d) ease, transform var(--d) var(--e-out);
}
@media (hover: hover) and (pointer: fine) {
  .gallery__item:hover img { transform: scale(1.04); }
  .gallery__item:hover::after { opacity: 1; }
  .gallery__item:hover .gallery__zoom { opacity: 1; transform: translateY(0); }
}
.gallery__item:focus-visible .gallery__zoom { opacity: 1; transform: translateY(0); }

/* video blocks — facade first, iframe only after click */
.videos { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: clamp(1rem, 2vw, 1.5rem); }
.vid {
  position: relative; overflow: hidden;
  border-radius: var(--r-lg); border: 1px solid var(--line);
  background: var(--surface);
  aspect-ratio: 16 / 9;
}
.vid video, .vid iframe, .vid img { width: 100%; height: 100%; object-fit: cover; border: 0; display: block; }
.vid__facade { position: absolute; inset: 0; width: 100%; display: grid; place-items: center; background: var(--surface); }
.vid__facade img { position: absolute; inset: 0; opacity: .5; transition: opacity var(--d-slow) ease, transform 520ms var(--e-out); }
.vid__play {
  position: relative; z-index: 1;
  width: 68px; height: 68px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--ac); color: var(--ac-ink);
  transition: transform var(--d) var(--e-out), box-shadow var(--d) ease;
}
.vid__title {
  position: absolute; left: 1rem; right: 1rem; bottom: 1rem; z-index: 1;
  font-family: var(--f-display); font-weight: 700; font-size: var(--t-sm);
  text-shadow: 0 2px 12px rgba(0, 0, 0, .8);
}
@media (hover: hover) and (pointer: fine) {
  .vid__facade:hover .vid__play { transform: scale(1.07); box-shadow: 0 12px 40px -8px var(--ac-glow); }
  .vid__facade:hover img { opacity: .68; transform: scale(1.03); }
}

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 6000;
  display: grid; place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(0, 0, 0, .93);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  opacity: 0; visibility: hidden;
  transition: opacity var(--d-slow) ease, visibility 0s linear var(--d-slow);
}
.lightbox.is-open { opacity: 1; visibility: visible; transition-delay: 0s; }
.lightbox__fig { max-width: min(1200px, 100%); max-height: 100%; display: flex; flex-direction: column; gap: 1rem; }
.lightbox__fig img {
  max-width: 100%; max-height: 78vh; width: auto; height: auto;
  object-fit: contain; border-radius: var(--r);
  transform: scale(.97); opacity: 0;
  transition: transform 240ms var(--e-out), opacity 240ms ease;
}
.lightbox.is-open .lightbox__fig img { transform: scale(1); opacity: 1; }
.lightbox__cap { text-align: center; font-size: var(--t-sm); color: var(--tx-3); }
.lightbox__btn {
  position: absolute; z-index: 2;
  width: 48px; height: 48px; display: grid; place-items: center;
  border-radius: 50%; border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, .05);
  color: var(--tx);
  transition: background-color var(--d) ease, border-color var(--d) ease;
}
.lightbox__btn:hover { background: rgba(255, 255, 255, .12); border-color: var(--tx-2); }
.lightbox__close { top: clamp(1rem, 3vw, 2rem); right: clamp(1rem, 3vw, 2rem); }
.lightbox__prev { left: clamp(.5rem, 2vw, 2rem); top: 50%; transform: translateY(-50%); }
.lightbox__next { right: clamp(.5rem, 2vw, 2rem); top: 50%; transform: translateY(-50%); }

/* prev / next project */
.case-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border-block: 1px solid var(--line); }
.case-nav__item {
  background: var(--bg);
  padding: clamp(2rem, 4vw, 3.25rem) clamp(1.25rem, 3vw, 2.5rem);
  display: flex; flex-direction: column; gap: .6rem;
  transition: background-color var(--d-slow) ease;
  min-height: 100%;
}
.case-nav__item--next { text-align: right; align-items: flex-end; }
.case-nav__item span { font-size: var(--t-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--tx-3); display: inline-flex; align-items: center; gap: .5rem; }
.case-nav__item strong { font-family: var(--f-display); font-size: var(--t-lg); font-weight: 700; letter-spacing: -.02em; max-width: 22ch; }
@media (hover: hover) and (pointer: fine) {
  a.case-nav__item:hover { background: var(--bg-3); }
  a.case-nav__item:hover strong { color: var(--ac); }
}
.case-nav__item--empty { color: var(--tx-3); }
@media (max-width: 700px) {
  .case-nav { grid-template-columns: 1fr; }
  .case-nav__item--next { text-align: left; align-items: flex-start; }
}