:root {
  --ink: #10251b;
  --green: #005b36;
  --pale: #eef3dc;
  --paper: #fff;
  --pink: #f7d6df;
  --line: rgba(16, 37, 27, .2);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; }
figure, h1, h2, p, dl, dd { margin: 0; }

.case-nav { min-height: 74px; padding: 0 30px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.case-name { color: var(--green); font-size: clamp(24px, 2.4vw, 40px); font-weight: 300; letter-spacing: -.055em; text-transform: uppercase; }
.case-back { font-size: 9px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.case-back span { margin-right: 8px; }
.case-nav a:hover, footer a:hover, .back-main a:hover { opacity: .5; }

.hero { min-height: calc(100vh - 74px); display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); }
.hero-copy { padding: 68px 5vw 60px; display: flex; flex-direction: column; align-items: flex-start; }
.kicker, .chapter-number, .eyebrow { font-size: 9px; font-weight: 600; line-height: 1.3; letter-spacing: .12em; text-transform: uppercase; }
.kicker span { color: #758078; margin-right: 24px; }
.hero h1 { color: var(--green); margin-top: auto; font-size: clamp(104px, 13vw, 210px); font-weight: 500; line-height: .72; letter-spacing: -.085em; }
.hero-statement { max-width: 650px; margin-top: 64px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(22px, 2vw, 32px); line-height: 1.12; letter-spacing: -.035em; }
.hero dl { width: min(100%, 650px); margin-top: 48px; border-top: 1px solid var(--ink); }
.hero dl > div { padding: 9px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 82px 1fr; gap: 16px; font-size: 8px; font-weight: 600; line-height: 1.35; letter-spacing: .08em; text-transform: uppercase; }
.hero dt { color: #758078; }
.hero-art { background: #fff; min-height: 720px; overflow: hidden; }
.hero-art img { width: 100%; height: 100%; object-fit: contain; object-position: center; }

.chapter { padding: 130px 3.5vw 145px; }
.chapter-head { margin-bottom: 62px; padding-top: 22px; border-top: 1px solid currentColor; display: grid; grid-template-columns: 12% minmax(280px, .9fr) minmax(280px, .7fr); gap: 4vw; align-items: start; }
.eyebrow { margin-bottom: 24px; color: #66736b; }
.chapter h2 { max-width: 780px; font-size: clamp(42px, 5vw, 78px); font-weight: 500; line-height: .92; letter-spacing: -.06em; }
.chapter-copy { max-width: 560px; font-size: clamp(16px, 1.25vw, 21px); line-height: 1.34; letter-spacing: -.02em; }
.wide-art { overflow: hidden; }
.wide-art img { width: 100%; height: 100%; object-fit: cover; }
.chapter-system .wide-art { aspect-ratio: 3.2 / 1; }
.chapter-system .wide-art img { object-position: center 56%; }
.chapter-applications .wide-art { aspect-ratio: 2.9 / 1; }
.chapter-applications .wide-art img { object-position: center 48%; }

.chapter-system { background: var(--paper); }
.chapter-applications { background: var(--pale); }
.chapter-stories { background: var(--green); color: var(--paper); }
.chapter-stories .eyebrow { color: #b9cabd; }
.story-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.4vw; align-items: start; }
.story-grid figure { min-width: 0; }
.story-media { display: block; position: relative; overflow: hidden; }
.story-grid img { width: 100%; aspect-ratio: 9 / 16; object-fit: cover; background: #eee; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.story-media:hover img, .story-media:focus-visible img { transform: scale(1.018); }
.play-film { position: absolute; right: 12px; bottom: 12px; padding: 8px 10px; background: rgba(255,255,255,.92); color: var(--ink); font-size: 8px; font-weight: 600; line-height: 1; letter-spacing: .1em; text-transform: uppercase; }
.story-grid figcaption { padding-top: 16px; display: flex; justify-content: space-between; gap: 12px; font-size: 9px; line-height: 1.3; letter-spacing: .1em; text-transform: uppercase; }
.story-grid figcaption span { font-weight: 600; }

.back-main { background: var(--paper); padding: 42px 3.5vw; }
.back-main a { display: inline-flex; align-items: center; gap: 8px; font-size: 9px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
footer { padding: 24px 3.5vw 28px; border-top: 1px solid var(--ink); display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; background: var(--paper); }
.footer-name { font-size: 14px; font-weight: 500; letter-spacing: .01em; text-transform: uppercase; }
footer > div { display: flex; gap: 22px; font-size: 9px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr 1fr; }
  .hero-copy { padding-left: 3.5vw; padding-right: 3.5vw; }
  .hero h1 { font-size: clamp(92px, 14vw, 140px); }
  .chapter-head { grid-template-columns: 80px 1fr; }
  .chapter-copy { grid-column: 2; margin-top: 26px; }
  .story-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 52px 2vw; }
}

@media (max-width: 680px) {
  .case-nav { min-height: 62px; padding: 0 14px; }
  .case-name { font-size: 22px; }
  .hero { min-height: 0; grid-template-columns: 1fr; }
  .hero-copy { min-height: 680px; padding: 48px 14px 54px; }
  .hero h1 { font-size: 108px; }
  .hero-statement { margin-top: 48px; font-size: 24px; }
  .hero-art { min-height: 0; }
  .hero-art img { height: auto; object-fit: contain; }
  .chapter { padding: 90px 14px 100px; }
  .chapter-head { grid-template-columns: 50px 1fr; gap: 14px; margin-bottom: 42px; }
  .chapter h2 { font-size: 42px; }
  .chapter-copy { grid-column: 1 / -1; margin-top: 24px; }
  .story-grid { grid-template-columns: 1fr; gap: 58px; }
  .chapter-system .wide-art, .chapter-applications .wide-art { aspect-ratio: auto; }
  .wide-art img { height: auto; object-fit: contain; }
  .story-grid img { aspect-ratio: auto; }
  .back-main { padding: 36px 14px; }
  footer { padding: 24px 14px 28px; grid-template-columns: 1fr; gap: 18px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .story-grid img { transition: none; } }