:root {
  --color-text: #2b2420;
  --color-bg: #faf7f2;
  --color-accent: #8a3b2f;
  --color-muted: #6b6259;
  --color-border: #e2dad0;
  --font-body: Georgia, "Times New Roman", serif;
  --font-ui: -apple-system, "Segoe UI", sans-serif;
  --max-width: 42rem;
  --max-width-wide: 60rem;
}

[data-era="1930s"] { --color-accent: #2e4a7d; }
[data-era="1940s"] { --color-accent: #5b6b2f; }
[data-era="1950s"] { --color-accent: #b5495b; }
[data-era="1970s"] { --color-accent: #bf5f1d; }
[data-era="1960s"] { --color-accent: #1f7a8c; }
[data-era="1980s"] { --color-accent: #6b2d8c; }

* { box-sizing: border-box; }

picture { display: block; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

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

a { color: var(--color-accent); }

h1, h2, h3 { font-family: var(--font-ui); line-height: 1.2; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-ui);
  flex-wrap: wrap;
}
.site-nav__home { font-weight: bold; text-decoration: none; color: var(--color-text); }
.site-nav > ul { list-style: none; display: flex; gap: 1.25rem; margin: 0; padding: 0; position: relative; }
.site-nav a { text-decoration: none; }
.site-nav a:hover { text-decoration: underline; }
.site-nav a[aria-current="page"] { color: var(--color-accent); text-decoration: underline; }
.site-nav > ul > li { position: relative; }
.site-nav__submenu {
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 10rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  z-index: 10;
}
.site-nav__submenu li { padding: 0.25rem 1rem; }
.site-nav > ul > li:hover .site-nav__submenu,
.site-nav > ul > li:focus-within .site-nav__submenu { display: block; }

main { max-width: var(--max-width); margin: 0 auto; padding: 2rem 1.5rem; }

.site-footer {
  text-align: center;
  color: var(--color-muted);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

.site-notice {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  border: 1px solid var(--color-accent);
  border-radius: 4px;
}

main:has(.era-cards) { max-width: var(--max-width-wide); }
.era-cards {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}
.era-card a { text-decoration: none; color: inherit; display: block; }
.era-card picture, .era-card img { border-radius: 4px; margin-bottom: 0.5rem; overflow: hidden; }
.era-card h2 { margin: 0.25rem 0; }
.era-card__years { color: var(--color-muted); font-size: 0.85rem; margin: 0; }

.era-header { text-align: center; margin-bottom: 2.5rem; }
.era-header__hero { border-radius: 4px; margin: 0 auto 1rem; overflow: hidden; max-width: 40rem; }
.era-header__years { color: var(--color-muted); font-family: var(--font-ui); }
.era-header__timeline-link { font-family: var(--font-ui); }

.era-section { margin-bottom: 2.5rem; }
.entry-list { list-style: none; margin: 0; padding: 0; }
.entry-list li { padding: 0.75rem 0; border-bottom: 1px solid var(--color-border); }
.entry-list a { font-family: var(--font-ui); font-weight: bold; text-decoration: none; }
.entry-list p { margin: 0.25rem 0 0; color: var(--color-muted); }
.era-section__empty { color: var(--color-muted); font-style: italic; }

.era-badge { font-family: var(--font-ui); font-size: 0.85rem; color: var(--color-muted); }
.era-badge a { color: var(--color-muted); }
.era-badge__subperiod::before { content: " · "; }

.entry__summary { color: var(--color-muted); font-size: 1.05rem; }
.entry__image { margin: 1.5rem 0; }
.entry__related { margin-top: 2.5rem; border-top: 1px solid var(--color-border); padding-top: 1rem; }
.related-group { margin-bottom: 1rem; }
.related-group h3 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.related-group ul { margin: 0; padding-left: 1.25rem; }
.entry__sources { margin-top: 1.5rem; font-size: 0.85rem; color: var(--color-muted); }

.timeline-group { margin-bottom: 2.5rem; padding-top: 1.5rem; border-top: 2px solid var(--color-border); }
.timeline-group:first-child { border-top: none; padding-top: 0; }
.timeline-group--era-wide { border-top: none; background: var(--color-border); padding: 1.25rem; border-radius: 4px; }
.timeline-group__heading { display: flex; align-items: baseline; gap: 0.75rem; margin-bottom: 0.5rem; }
.timeline-group__heading a { text-decoration: none; }
.timeline-group__years { font-family: var(--font-ui); font-weight: normal; font-size: 0.85rem; color: var(--color-muted); }

.image-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.image-gallery__item { margin: 0; }
.image-gallery__item picture, .image-gallery__item img { border-radius: 4px; }

#search {
  --pagefind-ui-primary: var(--color-accent);
  --pagefind-ui-text: var(--color-text);
  --pagefind-ui-background: var(--color-bg);
  --pagefind-ui-border: var(--color-border);
  --pagefind-ui-tag: var(--color-border);
  --pagefind-ui-font: var(--font-ui);
  margin-top: 1.5rem;
}