@font-face { font-family: "Space Grotesk"; src: url("/assets/fonts/SpaceGrotesk-Regular.ttf"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Space Grotesk"; src: url("/assets/fonts/SpaceGrotesk-Medium.ttf"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Space Grotesk"; src: url("/assets/fonts/SpaceGrotesk-Bold.ttf"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Caveat"; src: url("/assets/fonts/Caveat-Semibold.ttf"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Caveat"; src: url("/assets/fonts/Caveat-Bold.ttf"); font-weight: 700; font-display: swap; }
@font-face { font-family: "DM Mono"; src: url("/assets/fonts/DMMono-Regular.ttf"); font-weight: 400; font-display: swap; }
@font-face { font-family: "DM Mono"; src: url("/assets/fonts/DMMono-Medium.ttf"); font-weight: 500; font-display: swap; }

:root {
  --canvas: #efe56a;
  --cream: #f8f1d6;
  --ink: #1f3a8a;
  --stamp: #c2342b;
  --kraft: #c9a66b;
  --line: 1.5px solid var(--ink);
  --radius: 4px;
  --shadow: 5px 6px 0 var(--ink);
  --hero-shadow: 8px 9px 0 var(--ink);
  --display: "Space Grotesk", sans-serif;
  --body: "Space Grotesk", sans-serif;
  --hand: "Caveat", cursive;
  --mono: "DM Mono", monospace;
  --paper-grain: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; }
html { background: var(--canvas); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font: 400 1rem/1.55 var(--body);
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: var(--paper-grain) 0 0 / 160px 160px;
  mix-blend-mode: multiply;
  opacity: 0.11;
}

a { color: inherit; text-underline-offset: 0.17em; }
a:focus-visible { outline: 3px solid var(--stamp); outline-offset: 4px; }

h1,
h2 {
  margin: 0;
  font-family: var(--display);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem clamp(1rem, 4vw, 4rem);
  border-bottom: var(--line);
  font: 0.75rem/1 var(--mono);
  letter-spacing: 0.04em;
}

.site-nav__brand { font-weight: 700; text-decoration: none; }
.site-nav__links { display: flex; align-items: center; gap: 1.1rem; }
.nav-back { padding: 0.38rem 0.5rem; border: var(--line); background: var(--cream); }

main {
  max-width: 76rem;
  margin: auto;
  padding: clamp(2rem, 6vw, 6rem) clamp(1rem, 4vw, 4rem);
}

.eyebrow,
.artifact-date,
.proof-sheet__topline,
.proof-sheet__reference {
  font: 0.69rem/1.3 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-proof { display: grid; grid-template-columns: 1fr; gap: 1rem; align-items: end; }

.proof-sheet {
  grid-column: 1;
  min-width: 0;
  position: relative;
  padding: clamp(1.25rem, 5vw, 4rem);
  background: var(--cream);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--hero-shadow);
}

.proof-sheet::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 43%;
  width: 18px;
  height: 18px;
  border: var(--line);
  border-radius: 50%;
  background: var(--kraft);
}

.proof-sheet__topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: var(--line);
}

.proof-sheet__artifact { margin: clamp(1.25rem, 3vw, 2.5rem) 0 0; border: var(--line); background: var(--kraft); }
.proof-sheet__artifact img { display: block; width: 100%; max-height: 22rem; object-fit: cover; background: var(--kraft); }
.proof-sheet__artifact figcaption { padding: 0.5rem 0.7rem; border-top: var(--line); font: 0.67rem var(--mono); letter-spacing: 0.07em; text-transform: uppercase; }
.proof-sheet h1 { max-width: 11ch; margin: clamp(1.4rem, 4vw, 3rem) 0 2.2rem; font-size: clamp(3rem, 9vw, 7.5rem); }

.proof-sheet__evidence {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: end;
  padding-top: 1rem;
  border-top: var(--line);
}

.proof-sheet__evidence p { max-width: 42ch; margin: 0; }
.proof-sheet__reference { margin: 3rem 0 0; }

.received-stamp {
  display: inline-block;
  align-self: center;
  padding: 0.4rem 0.45rem;
  color: var(--stamp);
  border: 2px solid currentColor;
  font: 700 0.75rem/1 var(--mono);
  letter-spacing: 0.12em;
  transform: rotate(-5deg);
}

.margin-note {
  grid-column: 1;
  min-width: 0;
  max-width: 18rem;
  justify-self: end;
  padding: 0.5rem;
  border-bottom: var(--line);
  font: 600 clamp(1.55rem, 4vw, 2.5rem)/0.95 var(--hand);
}

.gallery { margin-top: clamp(5rem, 12vw, 10rem); }
.section-head { display: grid; grid-template-columns: 1fr; gap: 0.35rem; margin-bottom: 2rem; }
.section-head h2 { font-size: clamp(2.5rem, 6vw, 5rem); }
.section-head > p:last-child { max-width: 62ch; margin: 0.8rem 0 0; font-size: 1.1rem; }
.exhibit-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }

.exhibit-card {
  grid-column: 1;
  min-width: 0;
  padding: 1.5rem;
  background: var(--cream);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.exhibit-card h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
.exhibit-card a { display: block; text-decoration: none; }
.exhibit-card p { margin: 0.9rem 0 0; }
.exhibit-card__meta { font: 0.7rem var(--mono); letter-spacing: 0.07em; text-transform: uppercase; }
.exhibit-page { max-width: 64rem; }
.facts-page { max-width: 57rem; }

.artifact-sheet,
.facts-sheet {
  padding: clamp(1.25rem, 5vw, 4rem);
  background: var(--cream);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.artifact-header { padding-bottom: 1.5rem; border-bottom: var(--line); }
.artifact-header h1,
.facts-sheet h1 { margin: 0.8rem 0; font-size: clamp(3rem, 8vw, 6.5rem); }
.artifact-date { margin: 0; }
.artifact-figure { margin: 2rem 0; }
.artifact-figure img { display: block; width: 100%; height: auto; border: var(--line); background: var(--kraft); }

.caption-frame {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  margin-top: 0;
  padding: 1rem;
  border: var(--line);
  border-top: 0;
}

.caption-frame p { grid-column: 1; min-width: 0; margin: 0; }
.caption-frame b { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; }

.quote-block { margin: 2rem 0; padding: 1rem 1.2rem; border-left: 5px solid var(--ink); background: rgb(201 166 107 / 22%); }
.quote-block p { margin: 0 0 0.5rem; font-size: 1.25rem; }
.quote-block cite { font: 0.72rem var(--mono); font-style: normal; }
.quote-block--pending { border-style: dashed; }
.quote-block--pending p { font: 600 1.8rem/1.1 var(--hand); }
.artifact-copy { max-width: 68ch; }
.facts-sheet dl { margin: 3rem 0 0; }
.facts-intro { max-width: 48ch; font: 600 clamp(1.5rem, 3vw, 2.2rem)/1.05 var(--hand); }
.facts-sheet dl div { display: grid; grid-template-columns: 1fr; gap: 0.5rem; padding: 1.2rem 0; border-top: var(--line); }
dt { font: 0.72rem var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
dd { margin: 0; font-size: clamp(1.1rem, 2vw, 1.45rem); }
.link-desk,
.history-strip,
.company-block { margin-top: clamp(5rem, 12vw, 10rem); }
.link-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
.link-card { min-width: 0; padding: 1.35rem; background: var(--cream); border: var(--line); box-shadow: var(--shadow); text-decoration: none; }
.link-card span { font: 700 clamp(1.5rem, 3vw, 2.4rem)/1 var(--display); letter-spacing: -0.04em; }
.link-card p { margin: 0.75rem 0 0; }
.history-strip { display: grid; grid-template-columns: 1fr; gap: 1.5rem; padding-top: 2rem; border-top: var(--line); }
.history-strip h2,
.company-block h2 { max-width: 12ch; font-size: clamp(2.5rem, 6vw, 5rem); }
.company-block { max-width: 58rem; padding: clamp(1.5rem, 5vw, 3.5rem); background: var(--cream); border: var(--line); box-shadow: var(--hero-shadow); }
.company-block > p:not(.eyebrow) { max-width: 52ch; font-size: clamp(1.1rem, 2vw, 1.35rem); }
.company-block > a { font: 500 0.82rem/1.4 var(--mono); }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem 1.5rem; padding: 2rem clamp(1rem, 4vw, 4rem); border-top: var(--line); font: 0.75rem var(--mono); }

@media (min-width: 720px) {
  .hero-proof { grid-template-columns: minmax(0, 1fr) minmax(10rem, 0.26fr); }
  .proof-sheet { grid-column: 1; }
  .margin-note { grid-column: 2; justify-self: start; align-self: center; }
  .exhibit-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .exhibit-card { grid-column: auto; }
  .caption-frame { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .caption-frame p { grid-column: auto; }
  .link-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .link-grid--single { grid-template-columns: minmax(0, 1fr); }
  .history-strip { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); align-items: end; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}