:root {
  --forest: #173b33;
  --forest-dark: #102a25;
  --paper: #f5efe2;
  --paper-deep: #e4d9c3;
  --ink: #231f1a;
  --muted: #6b6257;
  --brass: #a7874b;
  --clay: #9c5644;
  --line: rgba(55, 45, 33, .26);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #d8d0c3; font-family: "Source Serif 4", Georgia, serif; }
a { color: inherit; }
.skip-link { position: fixed; z-index: 99; left: 1rem; top: -6rem; padding: .8rem 1rem; color: white; background: var(--forest-dark); }
.skip-link:focus { top: 1rem; }

.site-header { min-height: 78px; padding: 0 clamp(1rem, 4vw, 4.5rem); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem; color: #efe4cf; background: var(--forest); border-bottom: 1px solid rgba(224, 197, 143, .65); font-family: Poppins, sans-serif; }
.wordmark { text-decoration: none; font-size: clamp(1rem, 1.65vw, 1.35rem); letter-spacing: .19em; font-weight: 500; }
.site-header__back, .site-header__folio { font-family: "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: .12em; font-size: .7rem; }
.site-header__back { width: fit-content; text-decoration-thickness: 1px; text-underline-offset: .35rem; }
.site-header__folio { justify-self: end; }

.collection-main { min-height: calc(100vh - 78px); padding: clamp(3rem, 6vw, 5.2rem) clamp(1.25rem, 4vw, 4.5rem) 5rem; background-color: #e9e0d1; background-image: url("paired-evidence-room-background.png"); background-position: center top; background-size: cover; }
.collection-heading { max-width: 1140px; margin: 0 auto 3.1rem; text-align: center; }
.eyebrow, .case-type, .case-meta, .dossier-link, .site-footer { font-family: "IBM Plex Mono", monospace; }
.eyebrow { margin: 0 0 .8rem; color: var(--forest); font-size: .7rem; text-transform: uppercase; letter-spacing: .22em; }
.collection-heading h1 { margin: 0; color: var(--forest-dark); font-size: clamp(3.4rem, 8vw, 7rem); font-weight: 500; line-height: .9; letter-spacing: -.045em; }
.tagline { margin: 1.1rem 0 0; color: #54493b; font-size: clamp(1.05rem, 2vw, 1.42rem); font-style: italic; }

.dossier-pair { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) 112px minmax(0, 1fr); align-items: stretch; gap: 1.4rem; }
.dossier-card { position: relative; min-height: 510px; padding: clamp(2rem, 4vw, 3.5rem); overflow: hidden; background: var(--paper); border: 1px solid rgba(59, 47, 32, .36); box-shadow: 0 25px 60px rgba(39, 30, 20, .19), inset 0 0 0 7px rgba(255, 255, 255, .25); }
.dossier-card--green { border-left: 15px solid var(--forest); }
.dossier-card--clay { border-left: 15px solid var(--clay); }
.dossier-card__number { position: absolute; top: 1.2rem; right: 1.5rem; color: rgba(34, 31, 26, .1); font-size: 6.5rem; font-weight: 600; line-height: 1; }
.case-type { position: relative; margin: 0 0 2.2rem; color: var(--muted); text-transform: uppercase; letter-spacing: .14em; font-size: .66rem; }
.dossier-card h2 { position: relative; margin: 0; font-size: clamp(2.65rem, 4vw, 4.35rem); font-weight: 500; line-height: .94; letter-spacing: -.035em; }
.dossier-deck { max-width: 33rem; margin: 1.6rem 0 2rem; color: #51493f; font-size: 1.08rem; line-height: 1.55; }
.case-meta { margin: 0 0 2.1rem; padding: 1.1rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: .68rem; }
.case-meta div { display: grid; grid-template-columns: 7.3rem 1fr; gap: .7rem; }
.case-meta div + div { margin-top: .55rem; }
.case-meta dt { color: var(--muted); text-transform: uppercase; letter-spacing: .09em; }
.case-meta dd { margin: 0; }
.dossier-link { display: inline-block; padding: .82rem 1rem .72rem; color: #f5ecda; background: var(--forest); border: 1px solid var(--forest); text-decoration: none; text-transform: uppercase; letter-spacing: .12em; font-size: .7rem; transition: color .2s ease, background .2s ease, transform .2s ease; }
.dossier-card--clay .dossier-link { background: var(--clay); border-color: var(--clay); }
.dossier-link:hover, .dossier-link:focus-visible { color: var(--forest-dark); background: transparent; transform: translateY(-2px); }
.dossier-card--clay .dossier-link:hover, .dossier-card--clay .dossier-link:focus-visible { color: #6e3328; }

.witness-spine { padding: 1.5rem .7rem; display: flex; flex-direction: column; justify-content: space-between; align-items: center; color: var(--forest-dark); border-left: 1px solid rgba(66, 52, 37, .38); border-right: 1px solid rgba(66, 52, 37, .38); background: rgba(237, 228, 212, .58); text-align: center; font-family: "IBM Plex Mono", monospace; text-transform: uppercase; }
.witness-spine span { writing-mode: vertical-rl; font-size: .61rem; letter-spacing: .13em; }
.witness-spine strong { font-size: .63rem; line-height: 1.7; letter-spacing: .13em; }

.site-footer { padding: 1.5rem clamp(1.25rem, 4vw, 4.5rem); display: flex; justify-content: space-between; gap: 2rem; color: #dcd1bd; background: var(--forest-dark); font-size: .65rem; line-height: 1.5; }
.site-footer p { margin: 0; }
.footer-note { max-width: 48rem; text-align: right; }

@media (max-width: 860px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header__back { display: none; }
  .site-header__folio { grid-column: 2; grid-row: 1; }
  .wordmark { justify-self: start; }
  .collection-main { background-position: center top; }
  .dossier-pair { max-width: 600px; grid-template-columns: 1fr; }
  .witness-spine { min-height: 72px; flex-direction: row; border: 1px solid rgba(66, 52, 37, .38); }
  .witness-spine span { writing-mode: horizontal-tb; }
  .dossier-card { min-height: auto; }
}

@media (max-width: 520px) {
  .site-header { min-height: 64px; padding-inline: 1rem; }
  .wordmark { font-size: .87rem; letter-spacing: .12em; }
  .site-header__folio { font-size: .56rem; }
  .collection-main { padding: 2.5rem 1rem 3rem; }
  .collection-heading { margin-bottom: 2.2rem; }
  .dossier-card { padding: 2rem 1.55rem; border-left-width: 10px; }
  .dossier-card h2 { font-size: 2.65rem; }
  .case-meta div { grid-template-columns: 1fr; gap: .2rem; }
  .witness-spine { padding: 1rem; }
  .site-footer { flex-direction: column; }
  .footer-note { text-align: left; }
}

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