/* zott.org 2026 — single stylesheet, no framework, no JS */

:root {
  --bg: #faf7ef;
  --bg-soft: #f3eee0;
  --ink: #2b2722;
  --ink-soft: #6b6257;
  --line: #d8d0bd;
  --accent: #7a4a24;
  --missing: #b3a98f;
  --header-bg: #49301f;
  --header-ink: #fff9ee;
  --header-muted: #dfcdb8;
  --header-hover: rgba(255, 255, 255, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #201d18;
    --bg-soft: #2a2620;
    --ink: #e6dfd2;
    --ink-soft: #a89d8c;
    --line: #453e33;
    --accent: #d29a66;
    --missing: #5a5344;
    --header-bg: #17130f;
    --header-ink: #f1e8da;
    --header-muted: #c7b8a4;
    --header-hover: rgba(255, 255, 255, 0.1);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

main {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

h1, h2, h3 {
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  line-height: 1.25;
  color: var(--ink);
}

h1 { font-size: 2rem; margin: 2rem 0 1rem; }
h2 { font-size: 1.4rem; margin: 2rem 0 0.6rem; }
h3 { font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }

p { margin: 0.8rem 0; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85em;
  background: var(--bg-soft);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

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

/* Header */

.site-header {
  border-top: 0.3rem solid var(--accent);
  border-bottom: 1px solid #2e1e14;
  background: var(--header-bg);
  box-shadow: 0 2px 8px rgba(43, 29, 19, 0.18);
}

.site-header .inner {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0.9rem 1.25rem 0.75rem;
}

.site-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--header-ink);
  letter-spacing: 0.025em;
}

.site-title:hover { text-decoration: none; color: #fff; }

.site-nav {
  margin-top: 0.7rem;
  padding-top: 0.65rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.86rem;
  line-height: 1.2;
}

.site-nav a {
  color: var(--header-muted);
  padding: 0.42rem 0.62rem;
  border-radius: 999px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--header-ink);
  background: var(--header-hover);
  text-decoration: none;
}

.site-nav a.active {
  color: var(--header-bg);
  background: var(--header-ink);
  font-weight: 700;
}

.site-nav a:focus-visible,
.site-title:focus-visible {
  outline: 2px solid var(--header-ink);
  outline-offset: 2px;
}

@media (max-width: 38rem) {
  .site-header .inner { padding-inline: 0.8rem; }
  .site-nav { gap: 0.2rem; }
  .site-nav a { padding: 0.4rem 0.52rem; }
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.site-footer .inner {
  max-width: 62rem;
  margin: 0 auto;
  padding: 1.25rem;
}

/* Figures and media */

figure {
  margin: 1.5rem 0;
  text-align: center;
}

figure img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

figcaption {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: 0.4rem;
}

.postcard-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
  align-items: start;
}

.postcard-pair figure {
  margin: 0;
}

.postcard-pair img {
  display: block;
  width: 100%;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
  align-items: start;
}

.photo-grid figure {
  margin: 0;
}

.photo-grid img {
  display: block;
  width: 100%;
}

@media (max-width: 38rem) {
  .postcard-pair,
  .photo-grid { grid-template-columns: 1fr; }
}

video {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  background: #000;
}

/* Photo grid (galleries) */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.grid a {
  display: block;
}

.grid img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  border-radius: 4px;
}

/* Pure-CSS :target lightbox */

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10;
  background: rgba(10, 8, 5, 0.92);
  padding: 2rem;
  text-align: center;
}

.lightbox:target { display: flex; align-items: center; justify-content: center; }

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  height: auto;
}

/* Missing-media placeholder */

.missing {
  border: 2px dashed var(--missing);
  color: var(--ink-soft);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  text-align: center;
}

.archive-status {
  border-left: 4px solid var(--accent);
  background: var(--bg-soft);
  padding: 0.75rem 1rem;
}

.archive-status.unavailable { color: var(--ink-soft); }
/* Document reader */

.scan-help { color: var(--ink-soft); }

.transcript {
  max-width: 46rem;
  margin: 2rem 0;
  border-left: 4px solid var(--accent);
  padding-left: 1.25rem;
}

.transcript h3 { margin-top: 1.5rem; }
.transcript-note { color: var(--ink-soft); font-size: 0.9rem; }

/* Card grid (home / section lists) */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-soft);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.25rem;
}

.card .card-title { font-weight: 700; }
.card .card-desc { font-size: 0.9rem; color: var(--ink-soft); }
.card .card-meta,
.content-meta {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.content-meta { margin: -0.6rem 0 0.75rem; }

.external-sites .card {
  min-height: 8rem;
  justify-content: center;
  border-top: 0.3rem solid var(--accent);
}

.external-sites .card:hover,
.external-sites .card:focus-visible {
  background: var(--bg);
  box-shadow: 0 3px 12px rgba(43, 39, 34, 0.12);
  text-decoration: none;
  transform: translateY(-2px);
}

.external-sites .card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.panorama-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin: 1rem 0;
  border-radius: 8px;
  background: #000;
  box-shadow: 0 3px 12px rgba(43, 39, 34, 0.18);
}

.panorama-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Calendar tables (PCT trail book) */

table.calendar {
  border-collapse: collapse;
  margin: 1.5rem 0;
  width: 100%;
}

table.calendar th,
table.calendar td {
  border: 1px solid var(--line);
  padding: 0.6rem 0.75rem;
  text-align: center;
}

table.calendar th {
  background: var(--bg-soft);
  font-size: 1.1rem;
  text-align: left;
}

table.calendar a { display: block; }

/* Prev/next paging */

.pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}

/* Timeline (8mm frame notes) */

.timeline { list-style: none; padding: 0; margin: 1.5rem 0; }
.timeline li { margin: 1.25rem 0; }
.timeline .t { font-weight: 700; color: var(--accent); }

/* Blockquotes (letters) */

blockquote {
  margin: 1.5rem 0;
  padding: 0.75rem 1.5rem;
  border-left: 4px solid var(--line);
  color: var(--ink-soft);
  font-style: italic;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: var(--bg-soft);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  z-index: 20;
}