.case-page .site-header { grid-template-columns: auto 1fr auto auto; }
.case-page .site-nav { justify-self: end; }

.case-hero { position: relative; min-height: 78vh; display: grid; grid-template-columns: minmax(28rem, .78fr) minmax(38rem, 1.22fr); gap: clamp(3rem, 6vw, 7rem); align-items: center; padding: clamp(8rem, 12vh, 10rem) var(--content-gutter) clamp(4rem, 8vh, 7rem); border-bottom: 1px solid var(--line); overflow: hidden; }
.case-hero-copy { max-width: 50rem; }
.case-back { display: inline-flex; gap: .6rem; margin-bottom: 2rem; color: var(--muted); font-size: .66rem; }
.case-back:hover { color: var(--cyan); }
.case-kicker { margin: 0 0 1rem; color: var(--cyan); font-size: .7rem; }
.case-hero h1 { margin: 0; font: 600 clamp(3.3rem, 6vw, 6.8rem)/.92 var(--sans); letter-spacing: -.06em; }
.case-hero-copy > p:last-of-type { max-width: 44rem; margin: 1.6rem 0 0; color: #bdc8d2; font-size: clamp(.82rem, 1vw, .96rem); line-height: 1.75; }
.case-badges, .case-tags { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1.6rem 0 0; }
.case-badges span, .case-tags span { padding: .42rem .7rem; border: 1px solid var(--line); background: rgba(14,21,28,.72); color: var(--muted); font-size: .58rem; }
.case-badges span:first-child { border-color: rgba(167,240,112,.42); color: var(--green); }
.case-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.button-secondary { border: 1px solid var(--line); color: var(--text); }
.button-secondary:hover { border-color: var(--cyan); color: var(--cyan); }
.case-visual { min-width: 0; margin: 0; padding: .85rem; border: 1px solid var(--line); background: rgba(14,21,28,.92); box-shadow: 0 22px 80px rgba(0,0,0,.22); }
.case-visual-bar { display: flex; justify-content: space-between; gap: 1rem; margin: -.85rem -.85rem .85rem; padding: .72rem .85rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .58rem; }
.case-visual-bar span:first-child { color: var(--purple); }
.case-visual img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border: 1px solid var(--line); }

.case-section { position: relative; padding: var(--section-y) var(--content-gutter); border-bottom: 1px solid var(--line); scroll-margin-top: 68px; }
.case-section-heading { display: grid; grid-template-columns: minmax(16rem, .65fr) minmax(28rem, 1.35fr); gap: clamp(2rem, 7vw, 8rem); align-items: start; }
.case-section-heading h2 { margin: 0; font: 600 clamp(2.4rem, 4vw, 4.3rem)/1 var(--sans); letter-spacing: -.05em; }
.case-section-heading > div > p { max-width: 54rem; margin: 0; color: var(--muted); font-size: .78rem; line-height: 1.8; }
.case-section-heading > div > p + p { margin-top: 1rem; }
.case-meta { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 3.5rem; border: 1px solid var(--line); background: rgba(14,21,28,.58); }
.case-meta div { min-width: 0; padding: 1.35rem; }
.case-meta div + div { border-left: 1px solid var(--line); }
.case-meta dt { color: #687987; font-size: .58rem; }
.case-meta dd { margin: .45rem 0 0; color: #c5d0d8; font-size: .68rem; line-height: 1.55; }

.architecture { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-top: 3.5rem; }
.architecture article { position: relative; min-height: 155px; padding: 1.25rem; border: 1px solid var(--line); background: rgba(14,21,28,.82); }
.architecture article:not(:last-child)::after { content: "→"; position: absolute; top: 50%; right: -1.45rem; color: var(--cyan); transform: translateY(-50%); }
.architecture span { color: var(--cyan); font-size: .58rem; }
.architecture h3 { margin: .55rem 0 .65rem; font: 600 1rem/1.25 var(--sans); }
.architecture p { margin: 0; color: var(--muted); font-size: .65rem; line-height: 1.65; }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 3.5rem; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.case-grid article { min-height: 210px; padding: 1.5rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(14,21,28,.46); }
.case-grid article > span { color: var(--muted); font-size: .6rem; }
.case-grid h3 { margin: .6rem 0 .75rem; font: 600 1.05rem/1.25 var(--sans); }
.case-grid p { margin: 0; color: var(--muted); font-size: .68rem; line-height: 1.7; }

.case-close { text-align: center; }
.case-close .terminal-path { margin-bottom: 1rem; }
.case-close h2 { max-width: 18ch; margin: 0 auto; font: 600 clamp(2.6rem, 5vw, 5.5rem)/.98 var(--sans); letter-spacing: -.055em; }
.case-close p { max-width: 48rem; margin: 1.5rem auto 0; color: var(--muted); font-size: .76rem; }
.case-close .case-actions { justify-content: center; }
.case-page .site-footer { padding-right: var(--content-gutter); padding-left: var(--content-gutter); }

@media (max-width: 1150px) {
  .case-page .site-header { grid-template-columns: auto 1fr auto; }
  .case-hero { grid-template-columns: .8fr 1.2fr; gap: 2rem; }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .case-hero { min-height: auto; grid-template-columns: 1fr; padding-top: 8rem; }
  .case-visual { max-width: 68rem; }
  .case-section-heading { grid-template-columns: 1fr; }
  .architecture { grid-template-columns: 1fr 1fr; }
  .architecture article:nth-child(2)::after { display: none; }
}

@media (max-width: 620px) {
  .case-hero { padding-top: 7.5rem; }
  .case-hero h1 { font-size: clamp(3rem, 16vw, 4.4rem); }
  .case-meta, .case-grid, .architecture { grid-template-columns: 1fr; }
  .case-meta div + div { border-top: 1px solid var(--line); border-left: 0; }
  .architecture article::after { display: none; }
  .case-actions { align-items: stretch; flex-direction: column; }
}