/* ==========================================================================
   Case study pages
   Block widths taken from the live site at 1440: content 1300, squares
   635 + 30 gap, video 16:9, header image full-bleed 16:9.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Header image — full bleed, above the type, scales with scroll
   -------------------------------------------------------------------------- */
.header-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin-bottom: 72px;
}

.header-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: center center;
  will-change: transform;
}

/* --------------------------------------------------------------------------
   Intro — 400 / 800 grid, disciplines left, title + lede right
   -------------------------------------------------------------------------- */
.case-study-intro {
  display: grid;
  grid-template-columns: 400fr 800fr;
  column-gap: 100px;
  row-gap: 30px;
  padding: 0 var(--gutter);
}

.cs-disciplines {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 15px;
  color: var(--fg);
}

.cs-title {
  grid-column: 2;
  grid-row: 1;
  font-size: 4vw;
  font-weight: 400;
  line-height: 1;
  color: var(--fg);
}

.cs-lede {
  grid-column: 2;
  grid-row: 2;
  font-size: 18px;
  line-height: 22px;
  color: var(--fg);
}

.rule {
  height: 1px;
  background: var(--hairline);
  margin: 72px var(--gutter) 0;
}

/* --------------------------------------------------------------------------
   Content blocks
   -------------------------------------------------------------------------- */
.cs-blocks {
  display: flex;
  flex-direction: column;
  gap: 36px;
  padding: 36px var(--gutter) 0;
}

.large-image-block img,
.large-image-block video {
  width: 100%;
  height: auto;
  display: block;
}

.video-block {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

/* Two squares side by side — 635px each at 1440 with a 30px gutter */
.double-square {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 30px;
  row-gap: 16px;
}

.double-square img,
.double-square video {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

/* Middle paragraph — 2 columns, copy sits in the right one at 2.3vw */
.cs-middle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 28px;
  padding: 62px 0 46px;
}

.cs-middle-copy {
  grid-column: 2;
}

.cs-middle-copy p {
  font-size: 2.3vw;
  font-weight: 400;
  line-height: 1.13;
  color: var(--fg);
}

/* --------------------------------------------------------------------------
   Next project
   -------------------------------------------------------------------------- */
.next-project {
  display: block;
  padding: 90px var(--gutter) 0;
}

.next-project .label {
  display: block;
  margin-bottom: 20px;
}

.next-project .next-name {
  display: block;
  font-size: 6vw;
  font-weight: 400;
  line-height: 1;
  color: var(--fg);
  filter: blur(0px);
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              filter 0.3s cubic-bezier(0.608, 0.007, 0.25, 1);
}

.next-project:hover .next-name { transform: translateX(20px); filter: blur(5px); }

@media (max-width: 767px) {
  .header-image { margin-bottom: 40px; }

  .case-study-intro {
    grid-template-columns: 1fr;
    row-gap: 24px;
  }
  .cs-disciplines,
  .cs-title,
  .cs-lede { grid-column: 1; grid-row: auto; }
  .cs-title { font-size: 30px; }
  .cs-lede { font-size: 16px; line-height: 20px; }

  .rule { margin-top: 40px; }
  .cs-blocks { gap: 20px; padding-top: 20px; }

  .double-square { grid-template-columns: 1fr; row-gap: 20px; }

  .cs-middle { grid-template-columns: 1fr; padding: 40px 0 30px; }
  .cs-middle-copy { grid-column: 1; }
  .cs-middle-copy p { font-size: 22px; }

  .next-project { padding-top: 56px; }
  .next-project .next-name { font-size: 44px; }
}