/* Open Science Museum — single stylesheet, no external requests */

:root {
  --ink: #16181d;
  --ink-soft: #3c414b;
  --ink-faint: #585f6b;
  --paper: #f7f4ed;
  --paper-warm: #efe9dd;
  --rule: #d8d0c1;
  --verdigris: #2f6f66;
  --verdigris-dark: #245450;
  --vermillion: #9c3b28;
  --max: 68rem;
  --measure: 38rem;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; height: auto; display: block; }

a { color: var(--verdigris-dark); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--vermillion); }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; z-index: 50;
}
.skip:focus { left: 0; }

:focus-visible { outline: 2px solid var(--verdigris); outline-offset: 2px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* ---------- masthead ---------- */

.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--paper-warm);
}
.masthead-inner {
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: .75rem 1.5rem; padding: 1.1rem 1.25rem;
  max-width: var(--max); margin: 0 auto;
}
.wordmark {
  font-family: var(--serif);
  font-size: 1.2rem; font-weight: 700; letter-spacing: .01em;
  color: var(--ink); text-decoration: none; line-height: 1.2;
}
.wordmark span { display: block; font-size: .7rem; font-weight: 400; font-family: var(--sans);
  letter-spacing: .08em; text-transform: uppercase; color: var(--ink-faint); margin-top: .15rem; }

.nav { margin-left: auto; }
.nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 1.1rem; margin: 0; padding: 0; }
.nav a {
  font-family: var(--sans); font-size: .82rem; letter-spacing: .05em;
  text-transform: uppercase; text-decoration: none; color: var(--ink-soft);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--vermillion); }

/* ---------- headings & text ---------- */

h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.2; color: var(--ink); }
h1 { font-size: clamp(1.8rem, 1.2rem + 2.4vw, 2.9rem); margin: 0 0 .5rem; letter-spacing: -.01em; }
h2 { font-size: clamp(1.3rem, 1.05rem + 1vw, 1.65rem); margin: 2.4rem 0 .6rem; }
h3 { font-size: 1.15rem; margin: 1.9rem 0 .4rem; }

.eyebrow {
  font-family: var(--sans); font-size: .74rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--verdigris);
  margin: 0 0 .7rem;
}
.standfirst {
  font-size: 1.2rem; line-height: 1.5; color: var(--ink-soft);
  max-width: var(--measure); margin: 0 0 1.5rem;
}
.byline {
  font-family: var(--sans); font-size: .82rem; color: var(--ink-faint);
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  padding: .6rem 0; margin: 0 0 2rem; max-width: var(--measure);
}
.byline a { color: var(--ink-soft); }

main { padding: 2.75rem 0 4rem; }
.prose { max-width: var(--measure); }
.prose p, .prose ul, .prose ol { margin: 0 0 1.15rem; }
.prose li { margin-bottom: .4rem; }
.prose > p:first-of-type { font-size: 1.09rem; }

blockquote {
  margin: 1.8rem 0; padding: .2rem 0 .2rem 1.2rem;
  border-left: 3px solid var(--verdigris);
  font-style: italic; color: var(--ink-soft);
}
blockquote p:last-child { margin-bottom: 0; }
blockquote cite { display: block; font-style: normal; font-family: var(--sans);
  font-size: .8rem; color: var(--ink-faint); margin-top: .5rem; }

figure { margin: 2rem 0; }
figcaption {
  font-family: var(--sans); font-size: .82rem; line-height: 1.5;
  color: var(--ink-faint); margin-top: .6rem;
}
figcaption strong { color: var(--ink-soft); font-weight: 600; }

.plate {
  border: 1px solid var(--rule);
  background: #fffdf8;
  padding: 0;
}

hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5rem 0; }

/* ---------- hero ---------- */

.hero { border-bottom: 1px solid var(--rule); padding: 3.2rem 0 2.8rem; }
.hero h1 { max-width: 30rem; }
.hero .standfirst { font-size: 1.28rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.6rem; }

.btn {
  display: inline-block; font-family: var(--sans); font-size: .86rem; font-weight: 600;
  letter-spacing: .03em; padding: .68rem 1.15rem; text-decoration: none;
  border: 1px solid var(--verdigris-dark); border-radius: 2px;
}
.btn-primary { background: var(--verdigris-dark); color: #fff; }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-ghost { background: transparent; color: var(--verdigris-dark); }
.btn-ghost:hover { background: var(--paper-warm); color: var(--verdigris-dark); }

/* ---------- grids & cards ---------- */

.section { padding: 2.9rem 0; border-bottom: 1px solid var(--rule); }
.section:last-of-type { border-bottom: 0; }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: .8rem; margin-bottom: 1.5rem; }
.section-head h2 { margin: 0; }
.section-head .more { margin-left: auto; font-family: var(--sans); font-size: .82rem; }

.grid { display: grid; gap: 1.6rem; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); }
.grid-2 { display: grid; gap: 1.6rem 2.4rem; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); }

.card { display: flex; flex-direction: column; }
.card a.card-link { text-decoration: none; color: inherit; }
.card a.card-link:hover h3 { color: var(--vermillion); }
.card .thumb { border: 1px solid var(--rule); background: #fffdf8; margin-bottom: .8rem; }
.card h3 { margin: 0 0 .35rem; font-size: 1.06rem; line-height: 1.3; }
.card p { margin: 0; font-size: .94rem; color: var(--ink-soft); }
.card .meta {
  font-family: var(--sans); font-size: .74rem; letter-spacing: .07em;
  text-transform: uppercase; color: var(--ink-faint); margin: 0 0 .4rem;
}

/* article list */
.list { list-style: none; margin: 0; padding: 0; }
.list li { padding: 1.25rem 0; border-top: 1px solid var(--rule); }
.list li:last-child { border-bottom: 1px solid var(--rule); }
.list h3 { margin: 0 0 .3rem; }
.list a { text-decoration: none; color: inherit; }
.list a:hover h3 { color: var(--vermillion); }
.list p { margin: 0; color: var(--ink-soft); font-size: .96rem; max-width: 40rem; }

/* ---------- object record ---------- */

.record {
  font-family: var(--sans); font-size: .9rem;
  border-top: 1px solid var(--rule); margin: 2.2rem 0 0; padding-top: 1.2rem;
}
.record dl { display: grid; grid-template-columns: minmax(8rem, 12rem) 1fr; gap: .55rem 1.2rem; margin: 0; }
.record dt { color: var(--ink-faint); letter-spacing: .04em; text-transform: uppercase; font-size: .72rem; padding-top: .18rem; }
.record dd { margin: 0; color: var(--ink-soft); }
@media (max-width: 34rem) {
  .record dl { grid-template-columns: 1fr; gap: .1rem 0; }
  .record dd { margin-bottom: .7rem; }
}

.callout {
  background: var(--paper-warm); border: 1px solid var(--rule);
  padding: 1.1rem 1.25rem; margin: 2rem 0; font-size: .96rem;
}
.callout p:last-child { margin-bottom: 0; }
.callout .label {
  font-family: var(--sans); font-size: .72rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--verdigris); display: block; margin-bottom: .4rem;
}

.sources { font-size: .93rem; }
.sources ol { padding-left: 1.3rem; }
.sources li { margin-bottom: .6rem; color: var(--ink-soft); }

/* tables (scrollable) */
.table-scroll { overflow-x: auto; margin: 1.8rem 0; }
table { border-collapse: collapse; width: 100%; font-family: var(--sans); font-size: .9rem; }
th, td { text-align: left; padding: .55rem .8rem; border-bottom: 1px solid var(--rule); }
th { font-size: .74rem; letter-spacing: .07em; text-transform: uppercase; color: var(--ink-faint); }

/* ---------- forms ---------- */

.field { margin-bottom: 1.1rem; max-width: 30rem; }
.field label { display: block; font-family: var(--sans); font-size: .84rem; font-weight: 600; margin-bottom: .3rem; }
.field input, .field textarea, .field select {
  width: 100%; font: inherit; font-size: 1rem; padding: .55rem .65rem;
  border: 1px solid var(--rule); border-radius: 2px; background: #fffdf8; color: var(--ink);
}
.field .hint { font-family: var(--sans); font-size: .78rem; color: var(--ink-faint); margin-top: .25rem; }

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--rule); background: var(--paper-warm);
  padding: 2.6rem 0 3rem; font-size: .92rem;
}
.footer-grid { display: grid; gap: 1.8rem 2.2rem; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); }
.footer h4 {
  font-family: var(--sans); font-size: .74rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-faint); margin: 0 0 .7rem;
}
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { margin-bottom: .45rem; }
.footer a { color: var(--ink-soft); text-decoration: none; }
.footer a:hover { color: var(--vermillion); text-decoration: underline; }
.footer .colophon {
  margin-top: 2.2rem; padding-top: 1.2rem; border-top: 1px solid var(--rule);
  font-size: .84rem; color: var(--ink-faint); max-width: 46rem;
}
.footer .colophon p { margin: 0 0 .5rem; }

/* breadcrumb */
.crumb {
  font-family: var(--sans); font-size: .78rem; letter-spacing: .04em;
  color: var(--ink-faint); margin: 0 0 1.4rem;
}
.crumb a { color: var(--ink-soft); text-decoration: none; }
.crumb a:hover { color: var(--vermillion); text-decoration: underline; }

@media print {
  .masthead, .nav, .footer, .hero-actions { display: none; }
  body { background: #fff; }
}

/* utility spacing — kept as classes so the strict CSP needs no 'unsafe-inline' */
.rights-note { margin-top: .5rem !important; }
.section-cta { margin-top: 1.6rem; }