/* A single engineering chapter: collaboration, production evidence, delivery. */
.fns-case-study .fns-build-section {
  padding-block: 64px 28px;
}
.fns-build-section #delivery {
  max-width: none;
  margin-bottom: 52px;
}
.fns-build-section #delivery .case-reading {
  max-width: 800px;
  margin-inline: 0;
}
.fns-case-study .fns-build-section #delivery h2 {
  font-size: clamp(2.25rem, 4vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -.03em;
}
.fns-case-study .fns-build-section #delivery .case-reading > p:not(.case-kicker) {
  max-width: 620px;
  margin-top: 24px;
  font-size: 1.125rem;
  line-height: 1.6;
}
.fns-build-section .case-build-bridge {
  grid-template-columns: auto 52px auto;
  justify-content: start;
  gap: 32px;
  max-width: none;
  margin: 32px 0 0;
}
.fns-build-section .case-build-bridge > div { text-align: left; }
.fns-build-section .case-build-bridge > div > span {
  margin-bottom: 6px;
  font-size: .875rem;
}
.fns-build-section .case-build-bridge strong {
  font-size: 1.375rem;
  line-height: 1.3;
  letter-spacing: -.02em;
}
.fns-build-section .case-bridge-exchange {
  font-family: inherit;
  font-size: 2rem;
  color: #65849b;
}
.fns-build-section #build-challenges {
  position: relative;
  grid-template-columns: minmax(240px, .8fr) minmax(0, 1.6fr);
  gap: 48px;
  align-items: center;
}
.fns-build-section .case-production-number {
  padding-bottom: 0;
}
.fns-build-section .case-production-number strong {
  font-size: clamp(4.75rem, 8vw, 6.5rem);
  line-height: 1;
  letter-spacing: -.025em;
}
.fns-case-study .fns-build-section .case-production-number h3 {
  margin-top: 18px;
  font-size: 1.25rem;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -.015em;
}
.fns-build-section .fns-engineering-decisions {
  display: grid;
  gap: 24px;
  margin: 36px 0 0;
}
.fns-engineering-decisions dt {
  color: var(--portfolio-ink);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}
.fns-engineering-decisions dd {
  margin: 7px 0 0;
  max-width: 290px;
  color: var(--case-muted);
  font-size: 1rem;
  line-height: 1.6;
}
/* A cropped field of original assets fades toward the production story. */
.fns-build-section .fns-production-summary {
  position: relative;
  z-index: 1;
}
.fns-build-section .fns-asset-field {
  --asset-row: 122px;
  --asset-column-gap: 16px;
  --asset-loop-duration: 60s;
  position: relative;
  width: calc(100% + 140px);
  height: 520px;
  margin: -28px -40px -28px -100px;
  min-width: 0;
  overflow: hidden;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, rgb(0 0 0 / .05) 13%, rgb(0 0 0 / .45) 28%, #000 45%, #000 91%, transparent 100%), linear-gradient(to bottom, transparent, #000 14%, #000 84%, transparent);
  mask-image: linear-gradient(to right, transparent 0%, rgb(0 0 0 / .05) 13%, rgb(0 0 0 / .45) 28%, #000 45%, #000 91%, transparent 100%), linear-gradient(to bottom, transparent, #000 14%, #000 84%, transparent);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}
.fns-build-section .fns-asset-field-grid {
  position: absolute;
  inset: -55px -30px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  grid-template-rows: repeat(5, 122px);
  gap: 12px 16px;
  transform: rotate(-12deg);
}
.fns-build-section .fns-asset-sample {
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
}
.fns-build-section .fns-asset-sample img {
  display: block;
  object-fit: contain;
  width: 100%;
  height: 100%;
  max-width: 116px;
  max-height: 116px;
}
.fns-build-section .fns-asset-sample--whole img {
  width: auto;
  max-width: 100%;
  max-height: none;
  height: 128px;
  transform: rotate(-48deg);
}
.fns-build-section .fns-asset-sample--small img { height: 96px; }
.fns-build-section .fns-asset-sample--medium img { height: 112px; }
.fns-build-section .fns-asset-sample:nth-child(10n + 6),
.fns-build-section .fns-asset-sample:nth-child(10n + 7),
.fns-build-section .fns-asset-sample:nth-child(10n + 8),
.fns-build-section .fns-asset-sample:nth-child(10n + 9),
.fns-build-section .fns-asset-sample:nth-child(10n + 10) {
  translate: 18px 0;
}
/* Keep the tilt still; two identical groups pass through the same soft mask. */
.fns-build-section .fns-asset-field.is-loop-ready .fns-asset-field-grid {
  display: block;
}
.fns-build-section .fns-asset-track {
  animation: fns-asset-drift var(--asset-loop-duration) linear infinite;
  animation-play-state: paused;
}
.fns-build-section .fns-asset-field.is-moving .fns-asset-track {
  animation-play-state: running;
}
.fns-build-section .fns-asset-group {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  grid-template-rows: repeat(5, var(--asset-row));
  gap: 12px var(--asset-column-gap);
  padding-bottom: 12px;
}
@keyframes fns-asset-drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(0, -50%, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .fns-build-section .fns-asset-track { animation: none; }
}
.fns-build-section .story-build-time { margin-top: 52px; }
.fns-build-section .case-launch-line {
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  width: min(100%, 540px);
  max-width: none;
  margin-inline: auto;
  padding-top: 0;
}
.fns-build-section .case-launch-line > div:first-child { text-align: right; }
.fns-build-section .case-launch-line > span { font-size: 1.75rem; color: #65849b; }
.fns-build-section .case-launch-line > div > span { font-size: 1.5rem; letter-spacing: -.02em; }
.fns-build-section .case-launch-line > div > p { font-size: .9375rem !important; }
@media (max-width: 700px) {
  .fns-case-study .fns-build-section { padding-block: 40px 24px; }
  .fns-build-section #delivery { margin-bottom: 36px; }
  .fns-case-study .fns-build-section #delivery .case-reading > p:not(.case-kicker) { font-size: 1rem; }
  .fns-build-section .case-build-bridge {
    grid-template-columns: 1fr 28px 1fr;
    gap: 12px;
    margin-top: 28px;
  }
  .fns-build-section .case-build-bridge strong { font-size: 1.125rem; }
  .fns-build-section #build-challenges { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .fns-build-section .fns-engineering-decisions { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 28px; }
  .fns-engineering-decisions dt, .fns-engineering-decisions dd { font-size: .9375rem; }
  .fns-engineering-decisions dt { min-height: 2.8em; }
  .fns-build-section .fns-asset-field {
    --asset-row: 86px;
    --asset-column-gap: 12px;
    --asset-loop-duration: 44s;
    width: 100%;
    height: 340px;
    margin: -24px 0 -20px;
    -webkit-mask-image: linear-gradient(to bottom, transparent, #000 27%, #000 82%, transparent), linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
    mask-image: linear-gradient(to bottom, transparent, #000 27%, #000 82%, transparent), linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
  }
  .fns-build-section .fns-asset-field-grid {
    inset: -20px -60px;
    grid-template-rows: repeat(5, 86px);
    gap: 12px;
  }
  .fns-build-section .fns-asset-sample img { max-width: 78px; max-height: 78px; }
  .fns-build-section .fns-asset-sample--whole img { height: 94px; max-height: none; }
  .fns-build-section .fns-asset-sample--small img { height: 70px; }
  .fns-build-section .fns-asset-sample--medium img { height: 82px; }
  .fns-build-section .story-build-time { margin-top: 36px; }
  .fns-build-section .case-launch-line { gap: 18px; }
  .fns-build-section .case-launch-line > div > span { font-size: 1.25rem; }
}