/* Portfolio — a cinematic, image-first case study index. */
.dr-portfolio-page {
  --portfolio-line: rgba(247, 246, 243, .14);
  --portfolio-muted: #aaa9ad;
  overflow: clip;
}

.dr-portfolio-hero {
  position: relative;
  min-height: min(780px, calc(100svh - 76px));
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(440px, .94fr);
  align-items: center;
  gap: clamp(44px, 7vw, 120px);
  padding: clamp(92px, 10vw, 148px) var(--gx) clamp(80px, 9vw, 128px);
  border-bottom: 1px solid var(--portfolio-line);
  background:
    radial-gradient(circle at 82% 42%, rgba(34, 211, 238, .09), transparent 24%),
    radial-gradient(circle at 68% 72%, rgba(139, 92, 246, .08), transparent 28%),
    #08080a;
}

.dr-portfolio-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .24;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, transparent 8%, #000 65%, transparent);
}

.dr-portfolio-hero-copy { position: relative; z-index: 2; min-width: 0; max-width: 840px; animation: drPortfolioCopyIn .82s cubic-bezier(.2,.7,.2,1) both; }
.dr-portfolio-kicker { display: inline-flex; align-items: center; gap: 12px; color: var(--gold); font: 700 11px/1 var(--font-display); letter-spacing: .18em; text-transform: uppercase; }
.dr-portfolio-kicker::before { content: ''; width: 34px; height: 1px; background: currentColor; }
.dr-portfolio-hero h1 { max-width: 900px; margin: 24px 0 26px; color: var(--studio); font: 700 clamp(48px, 6.5vw, 96px)/.96 var(--font-display); letter-spacing: -.065em; text-wrap: balance; }
.dr-portfolio-hero p { max-width: 620px; margin: 0; color: #c3c2c5; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.72; overflow-wrap: anywhere; }
.dr-portfolio-explore { display: inline-flex; align-items: center; gap: 14px; margin-top: 38px; padding: 0; border: 0; color: var(--studio); background: transparent; cursor: pointer; font: 700 12px/1 var(--font-display); letter-spacing: .08em; text-transform: uppercase; }
.dr-portfolio-explore i { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid rgba(201,163,106,.56); border-radius: 50%; color: var(--gold); font-style: normal; transition: transform .25s ease, background-color .25s ease, color .25s ease; }

.dr-portfolio-signal { position: relative; z-index: 1; width: min(42vw, 540px); aspect-ratio: 1; justify-self: end; animation: drPortfolioSignalIn 1s .1s cubic-bezier(.2,.7,.2,1) both; }
.dr-signal-ring, .dr-signal-axis, .dr-signal-scan { position: absolute; display: block; }
.dr-signal-ring { border: 1px solid rgba(247,246,243,.16); border-radius: 50%; }
.dr-signal-ring.is-outer { inset: 5%; }
.dr-signal-ring.is-inner { inset: 26%; border-color: rgba(201,163,106,.32); border-style: dashed; animation: drPortfolioOrbit 28s linear infinite; }
.dr-signal-axis.is-horizontal { left: 1%; right: 1%; top: 50%; height: 1px; background: linear-gradient(90deg, transparent, rgba(34,211,238,.48), transparent); }
.dr-signal-axis.is-vertical { top: 1%; bottom: 1%; left: 50%; width: 1px; background: linear-gradient(transparent, rgba(139,92,246,.42), transparent); }
.dr-signal-core { position: absolute; z-index: 2; inset: 36%; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 50%; background: rgba(8,8,10,.84); border: 1px solid rgba(201,163,106,.5); box-shadow: 0 0 70px rgba(201,163,106,.1); }
.dr-signal-core b { color: var(--studio); font: 700 clamp(38px, 4.6vw, 68px)/.82 var(--font-display); letter-spacing: -.07em; }
.dr-signal-core small { max-width: 9ch; color: var(--gold); font: 700 9px/1.45 var(--font-display); letter-spacing: .14em; text-align: center; }
.dr-signal-node { position: absolute; display: flex; align-items: center; gap: 8px; color: #d4d3d5; font: 700 9px/1 var(--font-display); letter-spacing: .12em; }
.dr-signal-node i { width: 8px; height: 8px; border: 2px solid #08080a; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 1px rgba(34,211,238,.7), 0 0 18px rgba(34,211,238,.5); }
.dr-signal-node.is-brand { top: 13%; left: 26%; }
.dr-signal-node.is-commerce { top: 39%; right: -2%; }
.dr-signal-node.is-education { bottom: 13%; right: 23%; }
.dr-signal-node.is-corporate { bottom: 27%; left: -3%; }
.dr-signal-node.is-education i, .dr-signal-node.is-corporate i { background: var(--gold); box-shadow: 0 0 0 1px rgba(201,163,106,.7), 0 0 18px rgba(201,163,106,.45); }
.dr-signal-scan { inset: 5%; border-radius: 50%; background: conic-gradient(from 210deg, transparent 0 78%, rgba(34,211,238,.1) 88%, transparent 96%); animation: drPortfolioScan 9s linear infinite; }

.dr-work-filter-section { position: relative; z-index: 3; scroll-margin-top: 74px; padding: 0 var(--gx); background: #0c0c0f; border-bottom: 1px solid var(--portfolio-line); }
.dr-work-filter-intro { display: flex; justify-content: space-between; align-items: center; min-height: 68px; border-bottom: 1px solid var(--portfolio-line); color: var(--portfolio-muted); font: 700 10px/1 var(--font-display); letter-spacing: .14em; text-transform: uppercase; }
.dr-work-filter-intro b { color: var(--gold); font-weight: 700; }
.dr-work-filters { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; overflow: visible; padding: 0; }
.dr-work-filter { position: relative; display: flex; justify-content: space-between; align-items: center; min-width: 0; min-height: 76px; padding: 0 clamp(12px, 1.7vw, 24px); border: 0; border-right: 1px solid var(--portfolio-line); border-radius: 0; color: #96959a; background: transparent; font: 700 clamp(12px, 1.05vw, 14px)/1.2 var(--font-display); transition: color .22s ease, background-color .22s ease; }
.dr-work-filter:first-child { border-left: 1px solid var(--portfolio-line); }
.dr-work-filter::after { content: ''; position: absolute; left: 0; right: 100%; bottom: -1px; height: 2px; background: var(--gold); transition: right .35s cubic-bezier(.2,.7,.2,1); }
.dr-work-filter b { color: #68676c; font: 600 9px/1 var(--font-display); letter-spacing: .08em; transition: color .22s ease; }
.dr-work-filter.is-active { color: var(--studio); background: rgba(255,255,255,.035); }
.dr-work-filter.is-active::after { right: 0; }
.dr-work-filter.is-active b { color: var(--gold); }

.dr-work-gallery { padding: clamp(18px, 2vw, 30px) var(--gx) clamp(70px, 10vw, 140px); background: #08080a; }
.dr-portfolio-page .dr-work-grid { gap: clamp(8px, 1vw, 16px); }
.dr-portfolio-page .dr-work-item { border: 1px solid rgba(255,255,255,.07); animation: drPortfolioWorkIn .62s calc(var(--work-order) * 55ms) cubic-bezier(.2,.7,.2,1) both; }
.dr-portfolio-page .dr-work-item::after { content: ''; position: absolute; z-index: 2; inset: 0; border: 1px solid transparent; pointer-events: none; transition: border-color .3s ease; }
.dr-portfolio-page .dr-work-shade { background: linear-gradient(180deg, rgba(5,5,8,.1) 30%, rgba(5,5,8,.88) 100%); }
.dr-work-index { position: absolute; z-index: 3; top: 18px; left: 18px; display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid rgba(255,255,255,.28); border-radius: 50%; color: #fff; background: rgba(7,7,9,.34); backdrop-filter: blur(8px); font: 700 10px/1 var(--font-display); letter-spacing: .08em; }
.dr-portfolio-page .dr-work-copy { z-index: 3; }
.dr-portfolio-page .dr-work-arrow { z-index: 3; border-color: rgba(255,255,255,.34); background: rgba(7,7,9,.28); backdrop-filter: blur(8px); }

@media (hover: hover) and (pointer: fine) {
  .dr-portfolio-explore:hover i { transform: translateY(4px); background: var(--gold); color: var(--base); }
  .dr-work-filter:not(.is-active):hover { color: var(--studio); border-color: var(--portfolio-line); background: rgba(255,255,255,.025); }
  .dr-portfolio-page .dr-work-item:hover::after { border-color: rgba(201,163,106,.58); }
  .dr-portfolio-page .dr-work-item:hover .dr-work-media img { transform: scale(1.045); filter: saturate(1.04) contrast(1.02); }
}

@media (max-width: 900px) {
  .dr-portfolio-hero { grid-template-columns: 1fr; min-height: auto; gap: 48px; }
  .dr-portfolio-hero-copy { max-width: 720px; }
  .dr-portfolio-signal { width: min(78vw, 510px); justify-self: center; }
  .dr-work-filters { display: flex; overflow-x: auto; scroll-snap-type: x proximity; }
  .dr-work-filter { flex: 0 0 min(210px, 48vw); min-height: 68px; scroll-snap-align: start; border-left: 0; }
  .dr-work-filter:first-child { border-left: 1px solid var(--portfolio-line); }
}

@media (max-width: 639px) {
  .dr-portfolio-hero { padding-top: 82px; padding-bottom: 66px; gap: 38px; }
  .dr-portfolio-hero h1 { font-size: clamp(44px, 14vw, 66px); }
  .dr-portfolio-hero p { font-size: 16px; line-height: 1.65; }
  .dr-portfolio-explore { margin-top: 28px; }
  .dr-portfolio-signal { width: min(100%, 400px); }
  .dr-signal-node { font-size: 7px; }
  .dr-signal-node.is-commerce { right: 2%; flex-direction: row-reverse; }
  .dr-signal-node.is-corporate { left: 0; }
  .dr-work-filter-intro { min-height: 58px; }
  .dr-work-filter { flex-basis: 46vw; min-height: 62px; padding-inline: 14px; }
  .dr-work-gallery { padding-top: 10px; }
  .dr-portfolio-page .dr-work-grid { gap: 10px; }
  .dr-work-index { top: 14px; left: 14px; }
}

@keyframes drPortfolioCopyIn { from { opacity: 0; transform: translateY(24px); filter: blur(7px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes drPortfolioSignalIn { from { opacity: 0; transform: scale(.92) rotate(-3deg); filter: blur(8px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes drPortfolioWorkIn { from { opacity: 0; transform: translateY(22px); clip-path: inset(8% 0 0); } to { opacity: 1; transform: none; clip-path: inset(0); } }
@keyframes drPortfolioOrbit { to { transform: rotate(360deg); } }
@keyframes drPortfolioScan { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .dr-portfolio-hero-copy, .dr-portfolio-signal, .dr-portfolio-page .dr-work-item { animation: none !important; }
  .dr-signal-ring.is-inner, .dr-signal-scan { animation: none !important; }
  .dr-portfolio-explore i, .dr-work-filter, .dr-work-filter::after, .dr-portfolio-page .dr-work-item::after { transition-duration: .01ms !important; }
}