/* foldcommons.org — shared styles. Self-hosted, no CDN. */
:root {
  --primary:  #1858A8;
  --accent:   #57C7D5;
  --ink:      #0a1626;
  --paper:    #fbfcfe;
  --muted:    #4a5468;
  --hairline: #d8dde6;
  --maxw:     720px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink:      #e8edf5;
    --paper:    #0a1626;
    --muted:    #94a3b8;
    --hairline: #1f2c44;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3rem) clamp(1.25rem, 4vw, 2rem) 3rem;
}
header.page {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--hairline);
}
header.page svg { width: 44px; height: 44px; flex-shrink: 0; }
header.page a.brand {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}
header.page a.brand:hover { color: var(--primary); }
h1 {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  color: var(--primary);
}
@media (prefers-color-scheme: dark) {
  h1 { color: var(--accent); }
}
h2 {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2.5rem 0 0.75rem;
  color: var(--ink);
}
h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--ink);
}
p { margin: 0 0 1rem; }
.lede {
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--muted);
  margin: 0 0 2rem;
  max-width: 36em;
}
.meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 2rem;
}
ul, ol { margin: 0 0 1rem; padding-left: 1.5rem; }
li { margin: 0 0 0.4rem; }
strong { color: var(--ink); font-weight: 600; }
code {
  font: 0.92em ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: rgba(88, 167, 168, 0.08);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  color: var(--ink);
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}
th, td {
  text-align: left;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--hairline);
  vertical-align: top;
}
th { font-weight: 600; color: var(--ink); }
td { color: var(--ink); }
a {
  color: var(--primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover, a:focus-visible { color: var(--accent); }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}
@media (prefers-color-scheme: dark) {
  a { color: var(--accent); }
  a:hover, a:focus-visible { color: #8be1ec; }
  code { background: rgba(88, 167, 168, 0.15); }
}
footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.85rem;
  color: var(--muted);
}
footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.5rem;
}
footer p { margin: 0.25rem 0; }