:root {
  --ink: #111;
  --paper: #fff;
  --white: #fff;
  --green: #073f29;
  --soft-green: #eef1ed;
  --line: rgba(17, 17, 17, .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, video { display: block; width: 100%; }
img { height: 100%; object-fit: cover; }
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;
  background: var(--paper);
}
.case-name { 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 { opacity: .5; }

.hero { padding: 70px 3.5vw 0; }
.hero-kicker { display: grid; grid-template-columns: 90px 1fr; font-size: 9px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.hero-kicker span { color: #73736f; }
.hero-title { margin-top: 70px; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); align-items: end; gap: 6vw; }
.hero-title h1 { font-size: clamp(68px, 10vw, 156px); font-weight: 500; line-height: .82; letter-spacing: -.068em; }
.hero-title p { padding-bottom: .3vw; font-size: clamp(22px, 2.1vw, 34px); font-weight: 400; line-height: 1.04; letter-spacing: -.045em; }
.hero-intro { margin: 90px 0 38px 25%; padding-top: 22px; border-top: 1px solid var(--ink); display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .8fr); gap: 6vw; }
.hero-intro > p { max-width: 720px; font-size: clamp(20px, 1.65vw, 28px); font-weight: 400; line-height: 1.18; letter-spacing: -.03em; }
.hero-intro dl > div { padding: 9px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 74px 1fr; gap: 16px; font-size: 8px; font-weight: 600; line-height: 1.35; letter-spacing: .08em; text-transform: uppercase; }
.hero-intro dl > div:first-child { border-top: 0; padding-top: 0; }
.hero-intro dt { color: #73736f; }
.hero-image { height: min(70vw, 900px); background: var(--green); overflow: hidden; }

.chapter { padding: 130px 3.5vw 150px; }
.chapter-head { margin-bottom: 60px; padding-top: 22px; border-top: 1px solid currentColor; display: grid; grid-template-columns: 12% minmax(260px, .8fr) minmax(280px, .65fr); gap: 4vw; align-items: start; }
.chapter-number, .eyebrow { font-size: 9px; font-weight: 600; line-height: 1.3; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { margin-bottom: 24px; color: #6e6e69; }
.chapter h2 { max-width: 700px; font-size: clamp(40px, 5.2vw, 80px); font-weight: 500; line-height: .92; letter-spacing: -.055em; }
.chapter-copy { max-width: 550px; font-size: clamp(16px, 1.25vw, 21px); font-weight: 400; line-height: 1.34; letter-spacing: -.02em; }
.gallery figure { overflow: hidden; background: #ddd; }

.chapter-event { background: var(--green); color: var(--white); }
.chapter-event .eyebrow { color: #aebdac; }
.video-frame { margin-bottom: 2vw; background: #020c07; }
.video-frame video { max-height: 86vh; background: #020c07; object-fit: contain; }
.event-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2vw; }
.event-grid figure { min-height: 450px; }
.event-wide { grid-column: span 7; }
.event-wide + figure { grid-column: span 5; }
.event-grid figure:nth-child(3) { grid-column: span 5; }
.event-grid figure:nth-child(4) { grid-column: span 3; }
.event-landscape { grid-column: span 4; }

.chapter-campaign { background: var(--paper); }
.campaign-film-link { display: inline-flex; align-items: center; gap: 10px; margin-top: 24px; padding-bottom: 5px; border-bottom: 1px solid currentColor; font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.campaign-film-link:hover { opacity: .6; }
.campaign-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2vw; align-items: start; }
.campaign-grid figure { aspect-ratio: 3 / 4; }
.campaign-lead { grid-column: 1 / -1 !important; aspect-ratio: 16 / 9 !important; }

.chapter-kol { background: #111; color: var(--white); }
.chapter-kol .eyebrow { color: #9b9b9b; }
.kol-video { margin-bottom: 2vw; background: #050505; }
.kol-video video { max-height: 86vh; background: #050505; object-fit: contain; }
.kol-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2vw; }
.kol-grid figure { aspect-ratio: 4 / 3; background: #063b27; }
.kol-grid img { object-fit: cover; }

.chapter-digital { background: var(--soft-green); }
.digital-stage { padding: 6vw 5vw; background: var(--green); }
.digital-cards { aspect-ratio: 2.75 / 1; }
.digital-cards img { object-fit: contain; }
.phone-pair { margin: 7vw auto 0; max-width: 980px; display: grid; grid-template-columns: 1fr 1fr; gap: 8vw; align-items: end; }
.phone-pair figure { background: transparent; }
.phone-pair img { object-fit: contain; }
.phone-pair figure:last-child { margin-bottom: 10vw; }

.chapter-cny { min-height: 62vh; background: #7d1517; color: #f4dfb8; }
.chapter-cny .eyebrow { color: #d4b68c; }
.chapter-cny .chapter-head { margin-bottom: 0; }

.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; }
.back-main a:hover { opacity: .5; }

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: 900px) {
  .hero-title, .hero-intro { grid-template-columns: 1fr; }
  .hero-title { gap: 34px; }
  .hero-intro { margin-left: 0; gap: 48px; }
  .chapter-head { grid-template-columns: 80px 1fr; }
  .chapter-copy { grid-column: 2; margin-top: 25px; }
  .event-grid figure { min-height: 360px; }
  .event-wide { grid-column: span 12; }
  .event-wide + figure, .event-grid figure:nth-child(3) { grid-column: span 6; }
  .event-grid figure:nth-child(4), .event-landscape { grid-column: span 6; }
  .campaign-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kol-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .case-nav { min-height: 62px; padding: 0 14px; }
  .case-name { font-size: 22px; }
  .hero { padding: 48px 14px 0; }
  .hero-kicker { grid-template-columns: 50px 1fr; }
  .hero-title { margin-top: 54px; }
  .hero-title h1 { font-size: 69px; }
  .hero-title p { font-size: 25px; }
  .hero-intro { margin-top: 60px; }
  .hero-image { height: 74vw; }
  .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: 25px; }
  .video-frame { margin-bottom: 14px; }
  .event-grid, .campaign-grid, .kol-grid { gap: 14px; }
  .event-grid figure { min-height: 0; aspect-ratio: 4 / 5; }
  .event-wide, .event-wide + figure, .event-grid figure:nth-child(3), .event-grid figure:nth-child(4), .event-landscape { grid-column: span 12; }
  .event-wide, .event-landscape { aspect-ratio: 4 / 3 !important; }
  .campaign-grid { grid-template-columns: 1fr; }
  .campaign-grid figure { grid-column: 1 / -1; }
  .campaign-lead { aspect-ratio: 4 / 3 !important; }
  .digital-stage { padding: 28px 14px; }
  .phone-pair { grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 44px; }
  .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; } }