/* 3D render browser — tabs, project covers and the full project view. */
.r3d-browse { margin-top: clamp(38px, 5vw, 62px); }
.r3d-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0 22px;
  border-bottom: 1px solid var(--line);
}
.r3d-tab {
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
  padding: 12px 0 13px;
  min-height: 44px;
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  cursor: pointer;
  transition: color 0.3s, border-color 0.3s;
}
.r3d-tab:hover { color: var(--ink); }
.r3d-tab.is-active { color: var(--ink); border-bottom-color: var(--accent); }
.r3d-tab:focus-visible, .r3d-card:focus-visible, .r3d-back:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.r3d-tab-count {
  display: inline-block;
  margin-left: 6px;
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}
.r3d-panel { margin-top: clamp(26px, 4vw, 42px); }
.r3d-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: clamp(24px, 3vw, 40px);
}
.r3d-card {
  display: block;
  color: inherit;
  text-decoration: none;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
.r3d-card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-2);
}
.r3d-card-media img,
.r3d-card-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}
.r3d-card:hover .r3d-card-media img,
.r3d-card:hover .r3d-card-media video { transform: scale(1.035); }
.r3d-card-media.is-empty {
  background: linear-gradient(135deg, var(--bg-2), var(--bg));
}
.r3d-card-media.is-empty::after {
  content: "Render";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--ink-faint);
  font-size: 18px;
}
.r3d-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding-top: 12px;
}
.r3d-card-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.3vw, 28px);
  line-height: 1.15;
  transition: color 0.3s;
}
.r3d-card:hover .r3d-card-title { color: var(--accent); }
.r3d-card-count {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  white-space: nowrap;
}
.r3d-detail { margin-top: clamp(38px, 5vw, 60px); }
.r3d-detail[hidden], .r3d-browse[hidden] { display: none; }
.r3d-back {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 0 0 10px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: none;
  color: var(--ink-dim);
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
}
.r3d-back:hover { color: var(--accent); border-color: var(--accent); }
.r3d-page-link {
  display: inline-flex; align-items: center; gap: 7px; min-height: 44px;
  margin-top: 8px; color: var(--ink-dim); text-decoration: none;
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}
.r3d-page-link:hover { color: var(--accent); border-color: var(--accent); }
.r3d-page-link[hidden] { display: none; }
.r3d-detail-head { margin-top: clamp(26px, 4vw, 44px); }
.r3d-detail-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(38px, 5.5vw, 76px);
  line-height: 1.04;
  margin-top: 8px;
}
.r3d-detail-meta {
  margin-top: 10px;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.r3d-detail-desc {
  margin-top: 18px;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}
.r3d-detail-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2.4vw, 30px);
  margin-top: clamp(28px, 4vw, 46px);
}
.r3d-detail-gallery figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--bg-2);
}
.r3d-detail-gallery img,
.r3d-detail-gallery video {
  display: block;
  width: 100%;
  height: auto;
}
.r3d-detail-gallery video { aspect-ratio: 16 / 9; object-fit: cover; }
.r3d-detail-gallery figcaption {
  padding: 8px 10px;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
@media (max-width: 760px) {
  .r3d-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 14px; }
  .r3d-card-meta { display: block; }
  .r3d-card-count { display: block; margin-top: 4px; }
}
@media (max-width: 640px) {
  .r3d-tabs { gap: 0 18px; }
  .r3d-grid, .r3d-detail-gallery { grid-template-columns: 1fr; }
  .r3d-detail-gallery { gap: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .r3d-card-media img, .r3d-card-media video { transition: none; }
}