:root {
  --case-ink: #171514;
  --case-muted: #6f6965;
  --case-line: #d9d2ca;
  --case-surface: #f1ebe5;
  --case-accent: #c23f77;
  --case-shell: 1320px;
}

html {
  scroll-behavior: smooth;
}

body.case-study-page {
  background: var(--white, #f8f5f0);
  color: var(--case-ink);
  font-family: 'DM Sans', sans-serif;
}

.case-study-page #nav-top {
  position: relative !important;
  z-index: 30;
}

.case-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 3px;
  pointer-events: none;
}

.case-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--case-accent);
}

.case-shell {
  width: 100%;
  max-width: var(--case-shell);
  margin: 0 auto;
  padding: 36px 24px 104px;
}

.case-index {
  position: sticky;
  top: 0;
  z-index: 25;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 0 0 42px;
  padding: 13px 0;
  border-bottom: 1px solid var(--case-line);
  background: color-mix(in srgb, var(--white, #f8f5f0) 94%, transparent);
  backdrop-filter: blur(12px);
}

.case-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--case-accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
}

.case-back:hover,
.case-back:focus-visible {
  color: var(--case-ink);
}

.case-index-eyebrow,
.case-kicker,
.case-meta dt,
.case-callout-label {
  margin: 0;
  color: var(--case-accent);
  font-family: 'Silkscreen', 'Courier New', monospace;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .06em;
  line-height: 1.4;
  text-transform: uppercase;
}

.case-index-title {
  margin: 9px 0 35px;
  font-family: 'DM Sans', sans-serif;
  font-size: 19px;
  font-weight: 550;
  letter-spacing: -.02em;
  line-height: 1.25;
}

.case-index-eyebrow,
.case-index-title {
  display: none;
}

.case-index nav {
  position: static !important;
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  overflow-x: auto;
  border: 0;
  scrollbar-width: none;
}

.case-index nav::-webkit-scrollbar {
  display: none;
}

.case-index-link {
  position: relative;
  display: block;
  flex: 0 0 auto;
  padding: 7px 0;
  color: var(--case-muted);
  font-size: 14px;
  line-height: 1.25;
  text-decoration: none;
  transition: color 160ms ease;
}

.case-index-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: auto;
  bottom: 0;
  width: 100%;
  height: 2px;
  border: 0;
  border-radius: 0;
  background: var(--case-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}

.case-index-link:hover,
.case-index-link.is-active {
  color: var(--case-ink);
}

.case-index-link.is-active::before {
  transform: scaleX(1);
}

.case-content {
  min-width: 0;
}

.case-section {
  scroll-margin-top: 76px;
  margin-top: 56px;
  padding: 56px 0 0;
  border-top: 1px solid var(--case-line);
}

.case-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.case-kicker {
  margin-bottom: 18px;
}

.case-title,
.case-heading,
.case-next-title {
  font-family: 'DM Sans', sans-serif;
  color: var(--case-ink);
}

.case-title {
  max-width: none;
  margin: 0;
  font-size: clamp(43px, 5vw, 64px);
  font-weight: 500;
  letter-spacing: -.05em;
  line-height: 1.03;
}

.case-summary {
  max-width: none;
  margin: 24px 0 0;
  color: var(--case-muted);
  font-size: clamp(19px, 1.8vw, 25px);
  line-height: 1.45;
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  margin: 45px 0 0;
  padding: 26px 0;
  border-top: 1px solid var(--case-line);
  border-bottom: 1px solid var(--case-line);
}

.case-meta div {
  min-width: 0;
}

.case-meta dt {
  color: var(--case-muted);
}

.case-meta dd {
  margin: 9px 0 0;
  font-size: 16px;
  line-height: 1.45;
}

.case-hero {
  overflow: hidden;
  aspect-ratio: 3 / 2;
  margin: 0 0 48px;
  border-radius: 20px;
  background: #050505;
}

.case-hero img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-nda {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  margin-top: 28px;
  padding: 22px 24px;
  border: 1px solid #e7bfd0;
  border-radius: 14px;
  background: #f7e9ef;
  color: #5c4f54;
  font-size: 15px;
  line-height: 1.6;
}

.case-nda svg {
  width: 20px;
  margin-top: 2px;
  color: var(--case-accent);
}

.case-nda a {
  color: inherit;
  text-decoration-color: var(--case-accent);
  text-underline-offset: 3px;
}

.case-heading {
  max-width: none;
  margin: 0 0 30px;
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: 1.08;
}

.case-copy {
  max-width: none;
  margin: 0;
  color: var(--case-muted);
  font-size: clamp(18px, 1.55vw, 22px);
  line-height: 1.67;
}

.case-copy + .case-copy {
  margin-top: 23px;
}

.case-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 45px;
}

.case-fact {
  padding: 24px;
  border: 1px solid var(--case-line);
  border-radius: 16px;
}

.case-fact p:last-child {
  margin: 10px 0 0;
  color: var(--case-muted);
  font-size: 16px;
  line-height: 1.55;
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 46px;
}

.case-gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  object-fit: cover;
}

.case-next {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-top: 78px;
  padding: 36px 0 0;
  border-top: 1px solid var(--case-line);
  color: inherit;
  text-decoration: none;
}

.case-next-title {
  margin: 9px 0 0;
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1.08;
}

.case-next-arrow {
  color: var(--case-accent);
  font-size: 32px;
  transition: transform 160ms ease;
}

.case-next:hover .case-next-arrow {
  transform: translateX(6px);
}

@media (max-width: 900px) {
  .case-shell {
    padding-top: 28px;
  }

  .case-index {
    margin: 0 -24px 52px;
    padding: 12px 24px;
  }

  .case-back {
    display: none;
  }

  .case-index nav {
    gap: 24px;
    width: 100%;
  }

  .case-index-link {
    padding: 6px 0;
  }

  .case-section {
    scroll-margin-top: 70px;
    margin-top: 44px;
    padding: 44px 0 0;
  }

  .case-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 575px) {
  .case-title {
    font-size: clamp(40px, 12vw, 54px);
  }

  .case-summary {
    margin-top: 24px;
  }

  .case-meta {
    grid-template-columns: 1fr;
    gap: 21px;
    margin-top: 42px;
  }

  .case-hero {
    border-radius: 14px;
  }

  .case-nda {
    padding: 18px;
  }

  .case-facts,
  .case-gallery {
    grid-template-columns: 1fr;
  }

  .case-gallery img {
    aspect-ratio: 4 / 3;
  }

  .case-next {
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .case-index-link,
  .case-index-link::before,
  .case-next-arrow {
    transition: none;
  }
}