/* ══════════════════════════════════════════
   Project detail page — shared template
   ══════════════════════════════════════════ */

body {
  font-weight: 300;
  font-size: 18px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  overflow-x: hidden;
  cursor: none;
}

/* ── Back link ── */
.project-back {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--soft); text-decoration: none;
  opacity: 0; animation: fadeUp 0.8s 0.1s forwards;
  margin-bottom: 0.75rem;
}
.project-back svg { transition: transform 0.2s; }
.project-back:hover { color: var(--ink); }
.project-back:hover svg { transform: translateX(-3px); }

/* ── Project hero ── */
.project-hero {
  padding: 10rem clamp(1.5rem, 6vw, 5rem) 1.25rem;
}
.project-eyebrow {
  font-size: 0.65rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink); margin-bottom: 1rem;
  opacity: 0; animation: fadeUp 0.9s 0.2s forwards;
}
.project-title {
  font-family: var(--font-display); font-style: italic; font-weight: 300;
  font-size: clamp(3rem, 8vw, 7rem); line-height: 1.05;
  color: var(--ink); margin: 0.75rem 0 0.4rem;
  opacity: 0; animation: fadeUp 1s 0.35s forwards;
}
.project-subtitle {
  font-family: var(--font-body); font-style: normal; font-weight: 400;
  font-size: clamp(0.95rem, 2vw, 1.15rem); letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--sage);
  margin: 0 0 2.2rem;
  opacity: 0; animation: fadeUp 1s 0.45s forwards;
}

.project-meta {
  display: grid;
  grid-template-columns: 90px 1fr 1fr;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--beige);
  margin-bottom: 1.75rem;
  opacity: 0; animation: fadeUp 0.9s 0.5s forwards;
}
.meta-col { display: flex; flex-direction: column; gap: 0.4rem; }
.meta-key {
  font-size: 0.58rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--soft);
}
.meta-val {
  font-size: 0.85rem; line-height: 1.55; color: var(--ink);
}

.project-hero-tags {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 1px solid var(--beige);
  opacity: 0; animation: fadeUp 0.9s 0.6s forwards;
}
.hero-tag {
  font-size: 0.58rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--ink);
  color: var(--ink); border-radius: 2px;
}

/* ── Timeline nav ── */
.timeline-nav {
  position: fixed;
  right: clamp(0.75rem, 2vw, 2rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
}
.timeline-track {
  position: relative;
  display: flex; flex-direction: column; align-items: center;
}
/* Background track line */
.timeline-track::before {
  content: '';
  position: absolute;
  top: 8px; bottom: 8px;
  left: 50%; transform: translateX(-50%);
  width: 1px;
  background: var(--beige);
  z-index: 0;
}
/* Fill line — grows as you scroll */
.timeline-track::after {
  content: '';
  position: absolute;
  top: var(--fill-top, 8px);
  left: 50%; transform: translateX(-50%);
  width: 2px;
  background: var(--ink);
  height: var(--fill-h, 0px);
  transition: height 0.5s ease;
  z-index: 1;
  border-radius: 1px;
}
.tl-dot {
  position: relative;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cream);
  border: 1.5px solid var(--beige);
  z-index: 2;
  transition: background 0.3s, border-color 0.3s, transform 0.2s, opacity 0.3s;
  text-decoration: none;
  margin: 18px 0;
  display: block;
}
.tl-dot::after {
  content: attr(data-label);
  position: absolute;
  right: 18px; top: 50%; transform: translateY(-50%);
  font-size: 0.52rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--soft); white-space: normal;
  width: 90px; text-align: right; line-height: 1.5;
  word-break: break-word; overflow-wrap: break-word;
  opacity: 0; transition: opacity 0.2s;
  pointer-events: none;
}
.tl-dot:hover { transform: scale(1.4); }
.tl-dot:hover::after { opacity: 1; }
.tl-dot.past {
  background: var(--ink); border-color: var(--ink);
  opacity: 1;
}
.tl-dot.active {
  background: var(--ink); border-color: var(--ink);
  transform: scale(1.35);
}
.tl-dot.active::after { opacity: 1; color: var(--ink); }
@media (max-width: 600px) { .timeline-nav { display: none; } }

/* ── Project content ── */
.project-content {
  padding: 1.5rem clamp(1.5rem, 6vw, 5rem) var(--gap);
}
@media (min-width: 601px) {
  .project-content { padding-right: clamp(160px, 14vw, 220px); }
}

/* ── Overview two-column layout ── */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 2rem;
}
.overview-text h3 { margin-top: 0; }
.overview-img img {
  width: 100%; height: auto; display: block;
  border-radius: 2px;
  border: 2px solid var(--sage);
  position: sticky; top: 100px;
}
@media (max-width: 720px) {
  .overview-grid { grid-template-columns: 1fr; }
  .overview-img img { position: static; }
}

.proj-section {
  margin-bottom: clamp(2.8rem, 7vw, 6.3rem);
}

.proj-label {
  font-size: 0.65rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--primary); padding-bottom: 1rem;
  border-bottom: 2px solid var(--primary);
  margin-bottom: 2rem;
}

.proj-section p {
  font-size: 0.9rem; line-height: 1.9; color: var(--soft);
  margin-bottom: 1.25rem;
}

.proj-section h3 {
  font-family: var(--font-display); font-style: italic; font-weight: 300;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  color: var(--ink); margin: 2.5rem 0 1rem;
}
.proj-section h3:first-child { margin-top: 0; }

/* ── Side-by-side image pair ── */
.proj-img-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2rem 0;
}
.proj-img-pair .proj-img { margin: 0; }
@media (max-width: 600px) {
  .proj-img-pair { grid-template-columns: 1fr; }
}

/* ── Equal thirds: text | video | video ── */
.proj-thirds {
  display: flex;
  flex-wrap: nowrap;
  gap: 1.5rem;
  align-items: flex-start;
  margin: 1rem 0;
  width: 100%;
}
.proj-thirds > p {
  flex: 1 1 0;
  min-width: 0;
  font-size: 0.875rem;
  color: var(--soft);
  line-height: 1.75;
  margin: 0;
}
.proj-thirds > video,
.proj-thirds > img,
.proj-thirds > iframe {
  flex: 1 1 0;
  min-width: 0;
  width: 0; /* forces flex to size it, not intrinsic width */
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
  border: 2px solid var(--sage);
  border-radius: 2px;
  display: block;
}
@media (max-width: 680px) {
  .proj-thirds { flex-wrap: wrap; }
  .proj-thirds > p,
  .proj-thirds > video,
  .proj-thirds > img { flex: 1 1 100%; width: 100%; }
}

/* ── 2-up top + full-width bottom trio ── */
.proj-img-trio {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2rem 0;
  align-items: start;
}
.proj-img-trio .proj-img { margin: 0; overflow: hidden; }
.proj-img-trio .proj-img img {
  width: 100%;
  height: auto;
  max-height: none;
  display: block;
  border: 2px solid var(--sage);
  border-radius: 2px;
}
.proj-img-trio .proj-img.full-width {
  grid-column: 1 / -1;
}
@media (max-width: 600px) {
  .proj-img-trio { grid-template-columns: 1fr; }
  .proj-img-trio .proj-img.full-width { grid-column: auto; }
}

/* ── Image / media placeholder ── */
.proj-img {
  width: 100%;
  margin: 2rem 0; border-radius: 2px; overflow: hidden;
}
.proj-img img, .proj-img video {
  width: auto;
  max-width: 100%;
  max-height: 520px;
  height: auto;
  display: block;
  margin: 0 auto;
  object-fit: unset;
  border: 2px solid var(--sage);
}
.proj-img-caption {
  font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--soft); margin-bottom: 0.5rem;
}

.proj-img-placeholder-text {
  font-family: var(--font-display); font-style: italic;
  font-size: 1.25rem; color: var(--beige); opacity: 0.5; user-select: none;
}

/* ── Architecture drawer list ── */
.drawer-list { list-style: none; margin: 1.5rem 0; }
.drawer-item {
  display: grid; grid-template-columns: 80px 1fr;
  gap: 1.25rem; align-items: start;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(203,192,187,0.35);
  font-size: 0.875rem; line-height: 1.65;
}
.drawer-item:last-child { border-bottom: none; }
.drawer-label {
  font-size: 0.58rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--sage); padding-top: 0.1rem;
}
.drawer-desc { color: var(--soft); }

/* ── Code block ── */
.code-block {
  background: var(--ink); padding: 2rem;
  border-radius: 3px; overflow-x: auto; margin: 2rem 0;
}
.code-label {
  font-size: 0.52rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--rose); display: block; margin-bottom: 1rem;
}
.code-block pre {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.72rem; line-height: 1.8;
  color: var(--sage); white-space: pre; margin: 0;
}

/* ── BOM Table ── */
.bom-table {
  width: 100%; border-collapse: collapse;
  font-size: 0.8rem; margin: 1.5rem 0;
}
.bom-table th {
  font-size: 0.58rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--soft); text-align: left; font-weight: 400;
  padding: 0.6rem 1rem 0.6rem 0;
  border-bottom: 1px solid var(--beige);
}
.bom-table td {
  padding: 0.65rem 1rem 0.65rem 0;
  border-bottom: 1px solid rgba(203,192,187,0.3);
  color: var(--ink); vertical-align: middle;
}
.bom-table tr:last-child td { border-bottom: none; }
.bom-table a { color: var(--ink); text-decoration: none; }
.bom-table a:hover { text-decoration: underline; }
.bom-qty { color: var(--soft); white-space: nowrap; }

/* ── Assembly ── */
.assembly-group { margin-bottom: 2.5rem; }
.assembly-group-title {
  font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink); font-weight: 400; margin-bottom: 0.85rem;
}
.assembly-steps { list-style: none; }
.assembly-step {
  display: flex; gap: 1.25rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(203,192,187,0.3);
  font-size: 0.875rem; line-height: 1.65; color: var(--soft);
}
.assembly-step:last-child { border-bottom: none; }
.step-n {
  font-size: 0.58rem; letter-spacing: 0.1em;
  color: var(--sage); min-width: 22px;
  padding-top: 0.15rem; flex-shrink: 0;
}

/* ── Resources ── */
.resources-row {
  display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.75rem;
}
.resource-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.62rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--ink); text-decoration: none;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--ink); border-radius: 2px;
  transition: background 0.2s, color 0.2s;
}
.resource-link:hover { background: var(--ink); color: var(--cream); }

.pdf-embed {
  margin-top: 1.5rem;
  border-radius: 2px;
  overflow: hidden;
  background: var(--sand);
}

/* ── Scrollable PDF viewer ── */
.pdf-viewer {
  margin: 1.5rem 0;
  border: 2px solid var(--sage);
  border-radius: 2px;
  overflow: hidden;
}
.pdf-viewer iframe {
  display: block;
  width: 100%;
  height: 80vh;
  border: none;
}

/* ── Inline project link ── */
.proj-link {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--sage);
  text-underline-offset: 2px;
  transition: color 0.2s;
}
.proj-link:hover { color: var(--sage); }

/* ── Bullet list ── */
.proj-list {
  font-size: 0.9rem; line-height: 1.9; color: var(--soft);
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}
.proj-list li { margin-bottom: 0.25rem; }
.proj-list ul { padding-left: 1.25rem; margin-top: 0.25rem; }

/* ── Section-level toggle (Prototyping dropdown) ── */
.proj-toggle {
  margin: 2.5rem 0 0;
  border: none;
}
.proj-toggle[open] {
  border: 1.5px solid var(--ink);
  border-radius: 4px;
}
.proj-toggle > summary {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--cream);
  background: var(--ink);
  padding: 0.9rem 1.25rem;
  border-radius: 4px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: background 0.2s;
}
.proj-toggle > summary:hover { background: #443f4b; }
.proj-toggle > summary::-webkit-details-marker { display: none; }
.proj-toggle > summary::after {
  content: '›';
  font-size: 1.4rem;
  color: var(--sage);
  font-family: var(--font-body);
  transition: transform 0.2s;
  display: inline-block;
}
.proj-toggle[open] > summary::after { transform: rotate(90deg); }
.proj-toggle[open] > summary { border-radius: 4px 4px 0 0; }

/* ── Collapsible code block ── */
.code-details {
  margin: 1.5rem 0;
  border: 1px solid var(--beige);
  border-radius: 3px;
  overflow: hidden;
}
.code-details summary {
  font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink); padding: 0.85rem 1.25rem;
  cursor: none; list-style: none;
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--sand);
  transition: background 0.2s;
}
.code-details summary::-webkit-details-marker { display: none; }
.code-details summary::before {
  content: '▶';
  font-size: 0.5rem; color: var(--sage);
  transition: transform 0.2s;
}
.code-details[open] summary::before { transform: rotate(90deg); }
.code-details[open] summary { background: var(--beige); }
.code-details pre {
  margin: 0;
  padding: 1.5rem;
  background: var(--ink);
  overflow-x: auto;
}
.code-details pre code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.72rem; line-height: 1.8;
  color: var(--sage); white-space: pre;
}

/* ── Reference list ── */
.ref-list { list-style: none; margin-top: 1rem; }
.ref-list li {
  font-size: 0.8rem; line-height: 1.7; color: var(--soft);
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(203,192,187,0.3);
}
.ref-list li:last-child { border-bottom: none; }
.ref-list a { color: var(--sage); }

/* ── Media alongside text (text left 2/3, media right 1/3) ── */
.proj-video-aside {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
  margin: 2rem 0;
}
.proj-video-aside > video,
.proj-video-aside > img,
.proj-video-aside > iframe {
  order: 2;
  width: 100%;
  aspect-ratio: 9 / 16;
  border: 2px solid var(--sage);
  border-radius: 2px;
  display: block;
}
.proj-video-aside > video,
.proj-video-aside > img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
}
/* ── Multiple stacked media on the right ── */
.proj-video-aside > .aside-media {
  order: 2;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
}
.proj-video-aside > .aside-media video,
.proj-video-aside > .aside-media img,
.proj-video-aside > .aside-media iframe {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  aspect-ratio: 9 / 16;
  border: 2px solid var(--sage);
  border-radius: 2px;
  display: block;
}
.proj-video-aside > .aside-media video,
.proj-video-aside > .aside-media img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
  border: 2px solid var(--sage);
  border-radius: 2px;
  display: block;
}
.proj-video-aside > p,
.proj-video-aside > div:not(.aside-media) {
  order: 1;
  font-size: 0.875rem;
  color: var(--soft);
  line-height: 1.75;
  margin: 0;
  min-width: 0;
}
.proj-video-aside > div p {
  margin: 0 0 0.75rem;
}
.proj-video-aside > div p:last-child {
  margin-bottom: 0;
}
.proj-video-aside > div pre {
  overflow-x: auto;
}
@media (max-width: 680px) {
  .proj-video-aside { grid-template-columns: 1fr; }
  .proj-video-aside > video,
  .proj-video-aside > img { order: 1; }
  .proj-video-aside > p,
  .proj-video-aside > div { order: 2; }
}

/* ── Portrait media inside image pairs — cap height ── */
.proj-img-pair .proj-img video,
.proj-img-pair .proj-img img {
  width: auto;
  height: auto;
  max-height: 400px;
  max-width: 100%;
  display: block;
  margin: 0 auto;
}

/* ── Project card link overlay ── */
.project-card-link {
  position: absolute; inset: 0; z-index: 2;
}

/* ── Responsive ── */
@media (max-width: 680px) {
  .project-meta { grid-template-columns: 1fr; gap: 1.5rem; }
}