/* Open3D Viewer — legal pages */
:root {
  --ink:    #1A1D23;
  --ink-2:  #4A4F58;
  --ink-3:  #898E97;
  --line:   #E4E2DC;
  --bg:     #FBFAF7;
  --card:   #FFFFFF;
  --copper: #D4561C;
  --copper-soft: #FBEEE6;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
header.site .wrap {
  display: flex; align-items: center; gap: 12px;
  padding: 18px 24px;
}
.logo-mark {
  width: 30px; height: 30px; flex: none;
}
.logo-text {
  font-weight: 800; font-size: 18px; letter-spacing: -0.4px;
}
.logo-text .accent { color: var(--copper); }
header.site nav { margin-left: auto; display: flex; gap: 18px; flex-wrap: wrap; }
header.site nav a {
  color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 500;
}
header.site nav a:hover { color: var(--copper); }

/* ── Content ── */
main { padding: 48px 0 80px; }
h1 { font-size: 32px; letter-spacing: -0.6px; margin: 0 0 4px; }
.updated { color: var(--ink-3); font-size: 13px; margin: 0 0 36px; }
h2 {
  font-size: 19px; letter-spacing: -0.2px; margin: 38px 0 10px;
  padding-top: 8px;
}
h3 { font-size: 16px; margin: 22px 0 6px; }
p, li { color: var(--ink-2); }
a { color: var(--copper); }
strong { color: var(--ink); }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
code {
  background: var(--copper-soft); color: var(--copper);
  padding: 1px 6px; border-radius: 4px; font-size: 14px;
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
}
hr { border: none; border-top: 1px solid var(--line); margin: 32px 0; }
.lead { font-size: 18px; color: var(--ink); }
.callout {
  background: var(--copper-soft);
  border-left: 3px solid var(--copper);
  padding: 14px 18px; border-radius: 0 8px 8px 0;
  margin: 20px 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout p:first-child { margin-top: 0; }

/* ── Index cards ── */
.doc-grid { display: grid; gap: 14px; margin-top: 28px; }
.doc-card {
  display: block; text-decoration: none;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px 20px;
  transition: border-color .15s, transform .12s;
}
.doc-card:hover { border-color: var(--copper); transform: translateY(-1px); }
.doc-card .t { font-size: 17px; font-weight: 700; color: var(--ink); margin: 0; }
.doc-card .d { font-size: 14px; color: var(--ink-3); margin: 4px 0 0; }

/* ── Footer ── */
footer.site {
  border-top: 1px solid var(--line);
  padding: 28px 0; color: var(--ink-3); font-size: 13px;
}
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 6px 18px; }
footer.site a { color: var(--ink-3); text-decoration: none; }
footer.site a:hover { color: var(--copper); }

@media (max-width: 560px) {
  h1 { font-size: 26px; }
  header.site .wrap { flex-wrap: wrap; }
  header.site nav { margin-left: 0; width: 100%; }
}