/* ============================================================
 Design Plan Associates Work Section Styles
 Category listing · Project grids · Photo galleries
 ============================================================ */

/* ─── Breadcrumb ─────────────────────────────────────────── */
.work-breadcrumb {
 display: flex;
 align-items: center;
 gap: 10px;
 font-size: 12px;
 letter-spacing: 0.1em;
 text-transform: uppercase;
 color: var(--muted);
 margin-bottom: clamp(36px, 5vw, 56px);
 padding-bottom: clamp(20px, 3vw, 28px);
 border-bottom: 1px solid var(--rule);
}
.work-breadcrumb a {
 color: var(--muted);
 text-decoration: none;
 transition: color .25s ease;
}
.work-breadcrumb a:hover { color: var(--accent); }
.bc-sep { color: var(--rule-strong); }

/* ─── Category grid (work.html) ─────────────────────────── */
.cat-grid {
 display: grid;
 grid-template-columns: repeat(2, 1fr);
 gap: 0;
 border-top: 1px solid var(--ink);
 border-left: 1px solid var(--rule);
 margin-top: clamp(20px, 3vw, 40px);
}

.cat-card {
 display: grid;
 grid-template-columns: 220px 1fr;
 gap: 0;
 text-decoration: none;
 color: inherit;
 border-right: 1px solid var(--rule);
 border-bottom: 1px solid var(--rule);
 transition: background .3s ease;
 overflow: hidden;
 position: relative;
}
.cat-card::after {
 content: '';
 position: absolute;
 bottom: 0; left: 0;
 width: 0; height: 2px;
 background: var(--accent);
 transition: width .5s ease;
}
.cat-card:hover::after { width: 100%; }
.cat-card:hover { background: var(--paper-warm); }

.cat-card-thumb {
 width: 220px;
 aspect-ratio: 3/2;
 overflow: hidden;
 flex-shrink: 0;
}
.cat-card-thumb img {
 width: 100%; height: 100%;
 object-fit: cover;
 transition: transform 1s ease;
 filter: grayscale(20%);
}
.cat-card:hover .cat-card-thumb img {
 transform: scale(1.05);
 filter: grayscale(0%);
}

.cat-card-body {
 padding: clamp(24px, 3vw, 36px);
 display: flex;
 flex-direction: column;
 justify-content: space-between;
 min-height: 160px;
}

.cat-card-meta {
 display: flex;
 justify-content: space-between;
 align-items: center;
 margin-bottom: 14px;
}
.cat-num {
 font-family: var(--serif);
 font-style: italic;
 font-size: 15px;
 color: var(--accent);
}
.cat-count {
 font-size: 11px;
 letter-spacing: 0.14em;
 text-transform: uppercase;
 color: var(--muted);
}
.cat-card-name {
 font-size: clamp(22px, 2.4vw, 32px);
 font-weight: 600;
 letter-spacing: -0.025em;
 line-height: 1.1;
 margin-bottom: 10px;
 transition: color .3s ease;
}
.cat-card:hover .cat-card-name { color: var(--accent); }

.cat-card-desc {
 font-size: 13px;
 color: var(--muted);
 line-height: 1.6;
 flex: 1;
 margin-bottom: 16px;
}
.cat-card-arrow {
 font-size: 20px;
 color: var(--muted);
 transition: transform .35s ease, color .35s ease;
 display: inline-block;
}
.cat-card:hover .cat-card-arrow {
 transform: translateX(6px);
 color: var(--accent);
}

/* ─── Project grid (category pages) ─────────────────────── */
.proj-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: clamp(24px, 3vw, 40px);
 margin-top: clamp(20px, 3vw, 36px);
}

.proj-card {
 text-decoration: none;
 color: inherit;
 display: block;
}
.proj-card-img {
 aspect-ratio: 4/3;
 overflow: hidden;
 background: var(--paper-warm);
 margin-bottom: 16px;
 border-top: 2px solid transparent;
 transition: border-color .3s ease;
}
.proj-card:hover .proj-card-img { border-color: var(--accent); }
.proj-card-img img {
 width: 100%; height: 100%;
 object-fit: cover;
 filter: grayscale(100%);
 transition: transform .9s ease, filter .5s ease;
}
.proj-card:hover .proj-card-img img {
 transform: scale(1.04);
 filter: grayscale(0%);
}

.proj-card-info {
 display: flex;
 align-items: baseline;
 gap: 12px;
}
.proj-card-num {
 font-family: var(--serif);
 font-style: italic;
 font-size: 13px;
 color: var(--accent);
 flex-shrink: 0;
}
.proj-card-name {
 font-size: clamp(15px, 1.5vw, 18px);
 font-weight: 500;
 letter-spacing: -0.015em;
 line-height: 1.25;
 transition: color .3s ease;
}
.proj-card:hover .proj-card-name { color: var(--accent); }

/* ─── Project detail intro ───────────────────────────────── */
.proj-detail-intro {
 max-width: 780px;
 margin-bottom: clamp(40px, 6vw, 64px);
 padding-top: clamp(16px, 3vw, 32px);
}
.proj-detail-intro .eyebrow {
 font-family: var(--serif);
 font-style: italic;
 font-size: clamp(15px, 1.5vw, 18px);
 color: var(--ink-soft);
 margin-bottom: 18px;
 display: flex;
 align-items: center;
 gap: 14px;
}
.proj-detail-intro .eyebrow::before {
 content: ''; width: 24px; height: 1px;
 background: var(--accent); flex-shrink: 0;
}
.proj-detail-intro h1 {
 font-size: clamp(36px, 6vw, 80px);
 font-weight: 700;
 letter-spacing: -0.035em;
 line-height: 1;
 margin-bottom: 16px;
}
.proj-photo-count {
 font-size: 12px;
 letter-spacing: 0.12em;
 text-transform: uppercase;
 color: var(--muted);
}

/* ─── Work page hero w/ side sketch ────────────────────────── */
.work-hero {
 display: grid;
 grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
 gap: clamp(32px, 5vw, 72px);
 align-items: stretch;
 margin-bottom: clamp(40px, 6vw, 64px);
}
.work-hero .page-intro { margin-bottom: 0; }
.work-hero-sketch {
 display: flex;
 align-items: center;
 justify-content: center;
 min-height: 100%;
 overflow: hidden;
}
.work-hero-sketch img {
 width: 100%;
 height: 100%;
 max-height: 640px;
 display: block;
 object-fit: cover;
 mix-blend-mode: multiply;
}
@media (max-width: 900px) {
 .work-hero { grid-template-columns: 1fr; gap: 24px; align-items: start; }
 .work-hero-sketch { max-width: 100%; min-height: 0; }
 .work-hero-sketch img { max-height: 340px; object-fit: contain; }
}

/* ─── Project intro + description + optional side sketch ────── */
.proj-detail-hero {
 display: grid;
 grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.3fr);
 gap: clamp(32px, 5vw, 72px);
 align-items: start;
 margin-bottom: clamp(40px, 6vw, 64px);
}
.proj-detail-hero .proj-detail-intro {
 margin-bottom: clamp(24px, 3vw, 40px);
 max-width: none;
 padding-top: 0;
}
.proj-detail-lead {
 display: flex;
 flex-direction: column;
}
.proj-detail-lead .proj-description {
 max-width: none;
 margin-bottom: 0;
 padding-bottom: 0;
 border-bottom: none;
 column-count: 1;
}
/* Pages without a sketch (default: short descriptions):
 intro on left, description on right, faint divider between them. */
.proj-detail-hero.no-sketch {
 grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
 align-items: stretch;
 margin-bottom: clamp(28px, 4vw, 44px);
}
.proj-detail-hero.no-sketch .proj-detail-intro {
 margin-bottom: 0;
 padding-right: clamp(16px, 2vw, 32px);
}
.proj-detail-hero.no-sketch .proj-detail-intro h1 {
 overflow-wrap: break-word;
 word-break: break-word;
 hyphens: auto;
}
.proj-detail-hero.no-sketch .proj-description {
 max-width: none;
 margin-bottom: 0;
 padding-bottom: 0;
 border-bottom: none;
 column-count: 1;
 border-left: 1px solid var(--rule);
 padding-left: clamp(24px, 3vw, 48px);
 padding-top: calc(clamp(15px, 1.5vw, 18px) * 1.6 + 18px);
}
/* Long-description variant: stack full-width so text uses the whole page */
.proj-detail-hero.no-sketch.long-desc {
 display: block;
}
.proj-detail-hero.no-sketch.long-desc .proj-detail-intro {
 margin-bottom: clamp(28px, 3.5vw, 44px);
 padding-right: 0;
}
.proj-detail-hero.no-sketch.long-desc .proj-description {
 border-left: none;
 padding-left: 0;
 padding-top: 0;
}
@media (max-width: 900px) {
 .proj-detail-hero.no-sketch { grid-template-columns: 1fr; gap: 24px; align-items: start; }
 .proj-detail-hero.no-sketch .proj-detail-intro { padding-right: 0; margin-bottom: 24px; }
 .proj-detail-hero.no-sketch .proj-description {
  border-left: none;
  padding-left: 0;
  padding-top: 0;
 }
}
/* Sketch column shows the full sketch — no cropping */
.proj-side-sketch {
 display: flex;
 flex-direction: column;
 justify-content: center;
 align-items: center;
 gap: clamp(16px, 2vw, 28px);
 min-height: 0;
 overflow: visible;
}
.proj-side-sketch.dual { justify-content: flex-start; }
.proj-side-sketch img {
 width: 100%;
 max-width: 100%;
 height: auto;
 max-height: none;
 object-fit: contain;
 display: block;
 mix-blend-mode: multiply;
}
@media (max-width: 900px) {
 .proj-detail-hero,
 .proj-detail-hero.no-sketch { grid-template-columns: 1fr; gap: 20px; align-items: start; }
 .proj-side-sketch {
  max-width: 100%;
  min-height: 0;
  padding: 0;
  background: #fafafa;
  border: 1px solid var(--rule);
 }
 .proj-side-sketch img {
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
 }
}

/* ─── Photo grid masonry columns, two fixed aspect ratios ─── */
.photo-grid {
 column-count: 3;
 column-gap: clamp(6px, 1vw, 12px);
 margin-bottom: clamp(60px, 9vw, 100px);
}
/* Skip rendering photo items until they're near the viewport (Chrome, Edge, Safari) */
.photo-item {
 content-visibility: auto;
 contain-intrinsic-size: 400px 300px;
}
.photo-item {
 display: block;
 overflow: hidden;
 background: var(--paper-warm);
 cursor: zoom-in;
 margin: 0 0 clamp(6px, 1vw, 12px);
 break-inside: avoid;
 -webkit-column-break-inside: avoid;
 page-break-inside: avoid;
 aspect-ratio: 3 / 2;   /* uniform landscape crop */
}
.photo-item.is-portrait { aspect-ratio: 3 / 4; }   /* uniform portrait crop */
.photo-item img {
 width: 100%;
 height: 100%;
 object-fit: cover;
 display: block;
 transition: transform .9s ease;
}
.photo-item:hover img { transform: scale(1.02); }
@media (max-width: 900px) {
 .photo-grid { column-count: 2; }
}
@media (max-width: 560px) {
 /* On phones, stack in a single column. Let each cell grow to its image's
  natural height (no fixed aspect-ratio) so slow-loading images never leave
  reserved blank space between visible ones. */
 .photo-grid {
  column-count: initial;
  display: flex;
  flex-direction: column;
  gap: 8px;
 }
 .photo-item,
 .photo-item.is-portrait {
  margin: 0;
  aspect-ratio: auto;
  height: auto;
  background: transparent;
 }
 .photo-item img {
  width: 100%;
  height: auto;
  object-fit: initial;
  display: block;
 }
}

/* ─── Prev / Next navigation ─────────────────────────────── */
.proj-nav {
 display: grid;
 grid-template-columns: 1fr auto 1fr;
 align-items: center;
 gap: clamp(16px, 3vw, 32px);
 padding: clamp(28px, 4vw, 40px) 0;
 border-top: 1px solid var(--ink);
 border-bottom: 1px solid var(--rule);
 margin-bottom: clamp(60px, 9vw, 90px);
}
.proj-nav-prev { text-align: left; }
.proj-nav-next { text-align: right; }
.proj-nav-all {
 font-size: 11px;
 letter-spacing: 0.16em;
 text-transform: uppercase;
 color: var(--muted);
 text-decoration: none;
 border: 1px solid var(--rule);
 padding: 10px 18px;
 white-space: nowrap;
 transition: all .25s ease;
}
.proj-nav-all:hover {
 color: var(--ink);
 border-color: var(--ink);
}
.proj-nav-btn {
 font-size: 13px;
 font-weight: 500;
 letter-spacing: -0.01em;
 text-decoration: none;
 color: var(--muted);
 transition: color .25s ease;
 line-height: 1.4;
 display: inline-block;
}
.proj-nav-btn:hover { color: var(--accent); }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 1100px) {
 .cat-grid { grid-template-columns: 1fr; }
 .cat-card { grid-template-columns: 180px 1fr; }
 .cat-card-thumb { width: 180px; }
 .proj-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
 .cat-card { grid-template-columns: 1fr; }
 .cat-card-thumb {
 width: 100%;
 aspect-ratio: 16/9;
 }
 .cat-card-body { min-height: auto; }
 .proj-grid { grid-template-columns: 1fr; gap: 28px; }
 .photo-grid { grid-template-columns: 1fr; gap: 4px; }
 .proj-nav { grid-template-columns: 1fr; text-align: center; }
 .proj-nav-prev, .proj-nav-next { text-align: center; }
 .proj-nav-all { margin: 0 auto; }
 .work-breadcrumb { flex-wrap: wrap; }
}

@media (max-width: 480px) {
 .cat-grid { border-left: none; }
 .cat-card { border-left: none; }
}

/* ─── Lightbox ───────────────────────────────────────────── */
#lb {
 display: none;
 position: fixed;
 inset: 0;
 z-index: 1000;
 align-items: center;
 justify-content: center;
}
#lb.open { display: flex; }

#lb-overlay {
 position: absolute;
 inset: 0;
 background: rgba(10,10,10,0.96);
}
#lb-img-wrap {
 position: relative;
 z-index: 1;
 max-width: 90vw;
 max-height: 90vh;
 display: flex;
 flex-direction: column;
 align-items: center;
}
#lb-img {
 max-width: 90vw;
 max-height: 84vh;
 width: auto;
 height: auto;
 display: block;
 object-fit: contain;
}
#lb-counter {
 margin-top: 14px;
 font-size: 11px;
 letter-spacing: 0.18em;
 text-transform: uppercase;
 color: #888;
}
#lb-close {
 position: absolute;
 top: 24px; right: 28px;
 z-index: 2;
 background: transparent;
 border: 0;
 color: #fff;
 font-size: 32px;
 line-height: 1;
 cursor: pointer;
 opacity: 0.7;
 transition: opacity .2s ease;
 padding: 4px 8px;
}
#lb-close:hover { opacity: 1; }

#lb-prev, #lb-next {
 position: absolute;
 top: 50%; transform: translateY(-50%);
 z-index: 2;
 background: transparent;
 border: 1px solid rgba(255,255,255,0.2);
 color: #fff;
 font-size: 20px;
 width: 48px; height: 48px;
 cursor: pointer;
 opacity: 0.7;
 transition: opacity .2s ease, border-color .2s ease;
 display: flex; align-items: center; justify-content: center;
}
#lb-prev { left: 24px; }
#lb-next { right: 24px; }
#lb-prev:hover, #lb-next:hover {
 opacity: 1;
 border-color: var(--accent);
 color: var(--accent);
}

/* ─── Project description ────────────────────────────────── */
.proj-description {
 max-width: none;
 margin-bottom: clamp(40px, 6vw, 64px);
 padding-bottom: clamp(28px, 4vw, 40px);
 border-bottom: 1px solid var(--rule);
 column-gap: clamp(32px, 4vw, 56px);
}
@media (min-width: 900px) {
 .proj-description { column-count: 2; }
}
.proj-description p {
 font-size: clamp(16px, 1.6vw, 19px);
 line-height: 1.65;
 color: var(--ink-soft);
 margin-top: 0;
}
.proj-description p + p { margin-top: 1em; }
.proj-desc-lead {
 font-family: inherit;
 font-style: normal;
 font-weight: 400;
}

/* ─── Project meta list (location / role / status) ───────── */
.proj-meta-list {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 24px;
 max-width: 900px;
 margin: clamp(40px, 6vw, 64px) 0 0;
 padding-top: clamp(28px, 4vw, 36px);
 border-top: 1px solid var(--rule);
}
.proj-meta-list dt {
 font-size: 11px;
 letter-spacing: 0.12em;
 text-transform: uppercase;
 color: var(--muted);
 margin-bottom: 6px;
}
.proj-meta-list dd {
 font-weight: 500;
 font-size: 15px;
 line-height: 1.4;
 color: var(--ink);
}
@media (max-width: 720px) {
 .proj-meta-list { grid-template-columns: 1fr 1fr; }
}

/* ─── Category description ───────────────────────────────── */
.cat-description {
 max-width: none;
 margin-bottom: clamp(36px, 5vw, 52px);
 column-gap: clamp(32px, 4vw, 56px);
}
@media (min-width: 900px) {
 .cat-description { column-count: 2; }
}
.cat-description p {
 font-size: clamp(16px, 1.6vw, 18px);
 line-height: 1.7;
 color: var(--muted);
 break-inside: avoid;
 margin-top: 0;
}
.cat-description p + p { margin-top: 1em; }

/* ─── Image reveal architectural cascade ───────────────── */

/* Card containers: slide up from below */
.proj-card,
.cat-card,
.photo-item {
 opacity: 0;
 transform: translateY(32px);
 transition:
 opacity 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94) var(--card-delay, 0ms),
 transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) var(--card-delay, 0ms);
 will-change: transform, opacity;
}
.proj-card.img-in,
.cat-card.img-in,
.photo-item.img-in {
 opacity: 1;
 transform: translateY(0);
}
/* On mobile, skip the scroll-reveal animation so images always show
 (IntersectionObserver can miss elements on mobile viewports) */
@media (max-width: 900px) {
 .proj-card,
 .cat-card,
 .photo-item {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
 }
}

/* Subcategory thumbnails ONLY (Commercial, Heritage Care, Residences, etc.):
 black-and-white by default, full colour on hover.
 Main /work category cards and photos inside individual project pages stay in full colour. */
.proj-card-img img {
 filter: grayscale(100%);
 transition: filter 0.5s ease, transform 0.9s ease;
}
.proj-card:hover .proj-card-img img {
 filter: grayscale(0%);
}

/* Feature project image: colour reveal on scroll */
.feature-project .visual img {
 filter: grayscale(30%) contrast(0.92);
 transition:
 filter 1.2s ease 300ms,
 transform 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.feature-project.img-in .visual img {
 filter: grayscale(0%) contrast(1);
}