/* ───────────────────────────────────────────────────
   v3 — D&M case-study + home shared system
   Editorial, image-first, natural aspect ratios.
   ─────────────────────────────────────────────────── */

:root{
  --paper: #f5f3ee;
  --paper-2:#ece9e1;
  --ink:   #0c0c0c;
  --rule:  rgba(12,12,12,.14);
  --muted: rgba(12,12,12,.55);

  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --serif:   "Instrument Serif", "Times New Roman", serif;
  --mono:    "JetBrains Mono", ui-monospace, Menlo, monospace;

  --pad: clamp(20px, 3.2vw, 44px);
  --max: 1360px;
}
*,*::before,*::after{ box-sizing: border-box; margin:0; padding:0; }
html,body{ background: var(--paper); color: var(--ink); }
html{ -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
body{
  font-family: var(--display);
  font-size: 14px;
  line-height: 1.55;
  overflow-x: hidden;
}
img{ display:block; max-width:100%; height:auto; }
video{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
::selection{ background: var(--ink); color: var(--paper); }
.it{ font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.005em; }
.mono{ font-family: var(--mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; }

/* ─── Top bar — slim editorial ─── */
.bar{
  position: fixed; top:0; left:0; right:0; z-index: 80;
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  align-items: center; gap: 16px;
  padding: 14px var(--pad);
  font-family: var(--mono); font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink);
  background: rgba(245,243,238,.85);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
}
.bar .back{ display:inline-flex; align-items:center; gap: 10px; opacity:.85; }
.bar .back .arr{ display:inline-block; width: 14px; height:1px; background:currentColor; position:relative; }
.bar .back .arr::before{ content:""; position:absolute; left:0; top:-3px; width:7px; height:7px; border-top:1px solid currentColor; border-left:1px solid currentColor; transform:rotate(-45deg); }
.bar .mid{ text-align:center; opacity:.7; }
.bar .right{ text-align:right; }
.bar .nav-cta{ border:1px solid currentColor; padding: 6px 14px 7px; border-radius:999px; font-size:10px; letter-spacing: .14em; display:inline-block; }

/* full-nav variant for top-level pages (home/work/about/services/contact) */
.bar.full{ grid-template-columns: 1fr auto 1fr; }
.bar.full .brand{ display:inline-flex; gap: 8px; align-items: baseline; }
.bar.full .brand b{ font-weight: 500; }
.bar.full .brand .amp{ font-family: var(--serif); font-style: italic; font-weight: 400; opacity: .85; }
.bar.full .mid{ display:flex; gap: 14px; align-items: baseline; justify-content: center; }
.bar.full .mid .sep{ opacity:.4; }
.bar.full .right{ display:flex; justify-content: flex-end; gap: 20px; align-items: center; }
.bar.full .right a{ opacity: .85; }
.bar.full .right a:hover{ opacity: 1; }
.bar.full .right a[aria-current="page"]{ opacity: 1; }
.bar.full .right a[aria-current="page"]::after{
  content: ""; display: inline-block; width: 4px; height: 4px; border-radius: 50%;
  background: currentColor; margin-left: 6px; vertical-align: middle;
}
/* ─── Mobile menu (CSS-only via <details>) ─── */
.m-menu{ display: none; position: relative; }
.m-menu > summary{
  list-style: none; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  gap: 5px; flex-direction: column;
  width: 38px; height: 32px;
  border: 1px solid currentColor; border-radius: 4px;
  padding: 0;
}
.m-menu > summary::-webkit-details-marker{ display: none; }
.m-menu > summary::marker{ display: none; }
.m-menu > summary > i{
  display: block; width: 16px; height: 1px;
  background: currentColor;
  transition: transform .25s ease, opacity .2s ease;
}
.m-menu[open] > summary > i:nth-of-type(1){ transform: translateY(3px) rotate(45deg); }
.m-menu[open] > summary > i:nth-of-type(2){ transform: translateY(-3px) rotate(-45deg); }
.m-menu-panel{
  position: fixed;
  top: 56px; left: 0; right: 0;
  background: var(--paper); color: var(--ink);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex; flex-direction: column;
  padding: 8px var(--pad) 18px;
  box-shadow: 0 16px 32px rgba(0,0,0,.08);
  z-index: 79;
}
.m-menu-panel a{
  padding: 14px 0;
  font-family: var(--display); font-size: 16px; font-weight: 500; letter-spacing: -.01em;
  text-transform: none; color: var(--ink);
  border-bottom: 1px solid var(--rule);
  display: flex; justify-content: space-between; align-items: center;
}
.m-menu-panel a:last-child{ border-bottom: none; }
.m-menu-panel a[aria-current="page"]{ opacity: .55; }
.m-menu-panel a .arr{
  font-family: var(--serif); font-style: italic; font-size: 13px; opacity: .55;
}
.m-menu-panel a.nav-cta{
  margin-top: 8px;
  background: var(--ink); color: var(--paper);
  padding: 14px 18px; border-radius: 4px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  border-bottom: none;
}

@media (max-width: 760px){
  .bar.full{ grid-template-columns: 1fr auto; padding: 12px var(--pad); }
  .bar.full .mid{ display: none; }
  .bar.full .right{ display: none; }
  .bar.full .m-menu{ display: block; }

  /* case study back-style bar — drop the middle case label */
  .bar:not(.full){ grid-template-columns: 1fr auto; padding: 12px var(--pad); }
  .bar:not(.full) .mid{ display: none; }
  .bar:not(.full) .right{ text-align: right; }
}

/* ─── PROJECT HEADER (compact, not a hero) ─── */
.ph{
  padding: 72px var(--pad) clamp(28px, 3.5vw, 48px);
  background: var(--paper);
}
.ph-wrap{ max-width: var(--max); margin: 0 auto; }
.ph-meta{
  display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: clamp(20px, 2.5vw, 36px);
}
.ph-meta .l{ display:flex; gap: 16px; flex-wrap: wrap; }
.ph-title{
  font-family: var(--display); font-weight: 500;
  font-size: clamp(48px, 7.5vw, 116px);
  letter-spacing: -.04em; line-height: .92;
  margin-bottom: clamp(20px, 2.5vw, 32px);
}
.ph-title .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }
.ph-grid{
  display: grid; grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}
@media (min-width: 900px){
  .ph-grid{ grid-template-columns: 1.6fr 1fr; gap: clamp(36px, 4.5vw, 72px); align-items: end; }
}
.ph-lede{
  font-family: var(--display); font-weight: 500;
  font-size: clamp(17px, 1.6vw, 24px);
  line-height: 1.35; letter-spacing: -.01em;
  max-width: 32ch;
  opacity: .9;
}
.ph-lede .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }
.ph-specs{
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px 22px;
  align-self: end;
}
.ph-specs .k{ font-size: 8px; letter-spacing: .2em; text-transform: uppercase; opacity: .5; margin-bottom: 3px; font-family: var(--mono); }
.ph-specs .v{ font-family: var(--display); font-size: 12px; line-height: 1.4; letter-spacing: -.005em; }
.ph-specs .v .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }

/* ─── BLOCK / general spacing ─── */
.block{ padding: clamp(40px, 4.5vw, 72px) var(--pad); }
.block.dark{ background: var(--ink); color: var(--paper); }
.block.paper{ background: var(--paper); }
.block.paper2{ background: var(--paper-2); }
.block.purple{ background: #4c2db8; color: var(--paper); }
.block.purple-deep{ background: #2b1567; color: var(--paper); }
.block.flush-top{ padding-top: 0; }
.block.flush-btm{ padding-bottom: 0; }
.wrap{ max-width: var(--max); margin: 0 auto; }

/* Section label — eyebrow + title side by side */
.seclabel{
  display: flex; gap: 20px; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap;
  padding-bottom: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted);
}
.block.dark .seclabel, .block.purple .seclabel, .block.purple-deep .seclabel{
  border-bottom-color: rgba(245,243,238,.22); color: rgba(245,243,238,.7);
}
.seclabel .ttl{
  font-family: var(--display); font-weight: 500;
  font-size: clamp(20px, 2.1vw, 30px);
  letter-spacing: -.02em; line-height: 1.05; text-transform: none;
  color: var(--ink);
  max-width: 22ch;
}
.block.dark .seclabel .ttl, .block.purple .seclabel .ttl, .block.purple-deep .seclabel .ttl{ color: var(--paper); }
.seclabel .ttl .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }
.seclabel .l{ display: flex; flex-direction: column; gap: 10px; }
.seclabel .r{ text-align: right; align-self: flex-end; opacity: .75; max-width: 28ch; line-height: 1.6; }

/* ─── Media primitives — natural aspect ratios ─── */
.grid-2{
  display: grid; gap: 14px; grid-template-columns: 1fr;
}
@media (min-width: 760px){ .grid-2{ grid-template-columns: 1fr 1fr; gap: 18px; } }

.grid-3{
  display: grid; gap: 14px; grid-template-columns: 1fr;
}
@media (min-width: 760px){ .grid-3{ grid-template-columns: repeat(3, 1fr); gap: 16px; } }

.fig{ display: grid; gap: 12px; }
.fig img, .fig video{ width: 100%; height: auto; display: block; }
.fig .cap{
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 9px; letter-spacing: .16em; text-transform: uppercase;
  opacity: .55;
}
.block.dark .fig .cap{ opacity:.7; }

/* contained image — sits on coloured ground with breathing room (logos, marks) */
.contain{
  display: flex; align-items: center; justify-content: center;
  padding: clamp(40px, 6vw, 100px);
  background: var(--paper-2);
}
.contain img{ max-width: 720px; width: 100%; }
.contain.dark{ background: var(--ink); }
.contain.purple{ background: #4c2db8; }
.contain.blue{ background: #1a6fa8; }

/* video framed at 16/9 */
.video-frame{
  position: relative; width: 100%; aspect-ratio: 16/9;
  background: var(--ink); overflow: hidden;
}
.video-frame video, .video-frame img{
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block;
}

/* Image + small text annotation beside */
.pair{
  display: grid; gap: 28px;
  grid-template-columns: 1fr;
  align-items: end;
}
@media (min-width: 900px){
  .pair{ grid-template-columns: 1.7fr 1fr; gap: clamp(36px, 5vw, 80px); }
  .pair.reverse{ grid-template-columns: 1fr 1.7fr; }
}
.pair > .fig, .pair > img{ width: 100%; }
.pair img{ width: 100%; height: auto; display: block; }
.pair .note h3{
  font-family: var(--display); font-weight: 500;
  font-size: clamp(18px, 1.9vw, 26px); line-height: 1.15; letter-spacing: -.015em;
  margin-bottom: 10px;
}
.pair .note h3 .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }
.pair .note p{ font-size: 13px; line-height: 1.6; opacity: .82; max-width: 32ch; }
.pair .note p + p{ margin-top: 10px; }
.pair .note p .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }
.pair .note .cap{
  margin-top: 14px;
  font-family: var(--mono); font-size: 9px; letter-spacing: .16em; text-transform: uppercase;
  opacity: .55;
}
.block.dark .pair .note p{ opacity: .85; }

/* ─── Pull-quote slab (configurable colour via .block.dark/purple etc) ─── */
.pq{
  padding: clamp(60px, 7vw, 100px) var(--pad);
}
.pq .wrap{ max-width: var(--max); margin: 0 auto; }
.pq .lab{
  font-family: var(--mono); font-size: 9px; letter-spacing: .2em; text-transform: uppercase;
  opacity: .7;
  margin-bottom: 18px;
}
.pq h2{
  font-family: var(--display); font-weight: 500;
  font-size: clamp(36px, 5.6vw, 84px);
  line-height: .96; letter-spacing: -.035em;
  max-width: 14ch;
}
.pq h2 .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }
.pq .credit{
  margin-top: clamp(32px, 4vw, 56px);
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,.22);
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  opacity: .75;
}
.pq.paper .credit, .pq.paper2 .credit{ border-top-color: var(--rule); }

/* ─── CLOSING / NEXT ─── */
.closing{
  background: var(--ink); color: var(--paper);
  padding: clamp(48px, 5.5vw, 80px) var(--pad) 0;
}
.closing .wrap{ max-width: var(--max); margin: 0 auto; }
.next-link{
  display: grid; grid-template-columns: auto 1fr auto; gap: 22px; align-items: end;
  padding: clamp(28px, 3.5vw, 52px) 0;
  border-top: 1px solid rgba(245,243,238,.2);
  border-bottom: 1px solid rgba(245,243,238,.2);
}
@media (max-width: 600px){
  .next-link{ grid-template-columns: 1fr auto; row-gap: 14px; }
  .next-link .lab{ grid-column: 1 / -1; }
  .next-link .ttl{ text-align: left; }
}
.next-link .lab{ font-family: var(--mono); font-size: 9px; letter-spacing: .2em; text-transform: uppercase; opacity: .6; }
.next-link .ttl{
  font-family: var(--display); font-weight: 500;
  font-size: clamp(28px, 4vw, 58px); line-height: 1.02; letter-spacing: -.03em;
  text-align: right;
}
.next-link .ttl .it{ font-family: var(--serif); font-style: italic; font-weight: 400; }
.next-link .arrow{
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(245,243,238,.4);
  display: grid; place-items: center;
  transition: background .25s, transform .25s, color .25s;
}
.next-link:hover .arrow{ background: var(--paper); color: var(--ink); transform: translateX(8px); }
.next-link .arrow svg{ width: 16px; height: 16px; }

.closing-foot{
  display: grid; grid-template-columns: 1fr;
  gap: 14px;
  padding: 18px 0 26px;
  font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  opacity: .65;
}
@media (min-width: 760px){
  .closing-foot{ grid-template-columns: 1fr 1fr 1fr; }
  .closing-foot .mid{ text-align: center; }
  .closing-foot .end{ text-align: right; }
}

/* ─── Wordmark footer ─── */
.wordmark{ background: var(--ink); padding: 0 0 30px; overflow: hidden; }
.wordmark svg{ display: block; width: 100%; height: auto; }

/* ─── Reveal ─── */
.rv{ opacity: 0; transform: translateY(20px); transition: opacity .8s cubic-bezier(.2,.8,.2,1), transform .8s cubic-bezier(.2,.8,.2,1); }
.rv.in{ opacity: 1; transform: none; }
.rv.d1{ transition-delay: .08s; }
.rv.d2{ transition-delay: .16s; }
.rv.d3{ transition-delay: .24s; }