/* Oro Enigma - shared shell for oroenigma.com.
   Loaded by the home page, the shop, the book catalogue and the publishing page so the header,
   nav and footer look like one site. Page-specific rules stay in each page.

   Served by Cloudflare Pages. Colours match the printables themselves: deep green, gold, warm
   paper - the same palette the PDFs and the brand marks are drawn in. */

:root {
  --ink: #16202b;
  --muted: #5a6672;
  --line: #e3e7ea;
  --accent: #1a4e38;
  --gold: #b78a48;
  --bg: #fbf9f5;
  --card: #ffffff;
  --shadow: 0 1px 2px rgba(22, 32, 43, .05), 0 8px 24px rgba(22, 32, 43, .06);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #e8edf2;
    --muted: #9fb0bf;
    --line: #2a3642;
    --accent: #6fcf97;
    --gold: #d6ab66;
    --bg: #121a22;
    --card: #18222c;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .28);
  }
}

:root[data-theme="dark"] {
  --ink: #e8edf2;
  --muted: #9fb0bf;
  --line: #2a3642;
  --accent: #6fcf97;
  --gold: #d6ab66;
  --bg: #121a22;
  --card: #18222c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------------------------------------------------------------- header */

/* Every property here is set explicitly rather than left to default, because /publishing/
   styles bare `header` and `nav` elements (green block, 44px padding, sticky nav). Those rules
   land on the shared shell too and distorted it badly until the shell pinned its own values. */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 0;
  margin: 0;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 70px;
  flex-wrap: wrap;
  padding: 0 16px;
  max-width: 1020px;
}

.site-header .nav {
  position: static;
  background: none;
  border: 0;
  padding: 0;
  backdrop-filter: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: .01em;
}

.brand img { display: block; border-radius: 50%; }

.nav {
  display: flex;
  gap: 8px;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: .95rem;
  flex-wrap: wrap;
}

.site-header .nav a {
  text-decoration: none;
  color: var(--ink);
  padding: 8px 14px;
  margin: 0;
  border-radius: 999px;
  white-space: nowrap;
  font-size: .95rem;
  display: inline-block;
}

.site-header .nav a:hover { background: rgba(26, 78, 56, .08); }

.site-header .nav a[aria-current="page"] {
  background: var(--accent);
  color: #fff;
}

/* ---------------------------------------------------------------- buttons */

.btn {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  padding: 13px 28px;
  border-radius: 999px;
  border: 0;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  line-height: 1.2;
}

.btn[disabled] { background: var(--muted); cursor: default; opacity: .7; }

.btn-alt {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

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

.site-footer {
  margin-top: 72px;
  border-top: 1px solid var(--line);
  background: var(--card);
}

.site-footer .wrap {
  padding-top: 32px;
  padding-bottom: 40px;
  color: var(--muted);
  font-size: .92rem;
}

.site-footer .cols {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.site-footer h3 {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: .78rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}

.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { padding: 3px 0; }

@media (max-width: 560px) {
  .site-header .wrap { min-height: 0; padding-top: 12px; padding-bottom: 12px; }
  .nav { width: 100%; }
}