/* Third Ring public pages. Design language: docs/DESIGN.md */
:root {
  --bg: #F6F5F3;
  --card: #FFFFFF;
  --border: #ECEAE6;
  --ink: #141414;
  --secondary: #6F6E6A;
  --accent: #B4511A;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.55;
}
.wrap { max-width: 680px; margin: 0 auto; padding: 0 20px 64px; }
header.site {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0 16px;
}
.wordmark { font-weight: 600; font-size: 17px; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
.wordmark .ring { color: var(--accent); }
nav.site a { color: var(--secondary); text-decoration: none; font-size: 14px; margin-left: 20px; }
nav.site a:hover { color: var(--ink); }
h1 { font-size: 32px; font-weight: 600; letter-spacing: -0.02em; margin: 40px 0 8px; }
.updated { color: var(--secondary); font-size: 13px; margin-bottom: 32px; }
h2 { font-size: 17px; font-weight: 600; margin: 32px 0 8px; }
p, li { color: var(--ink); margin-bottom: 12px; }
ul { padding-left: 20px; margin-bottom: 12px; }
li { margin-bottom: 6px; }
a { color: var(--accent); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 20px; margin: 20px 0;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
footer.site {
  margin-top: 64px; padding-top: 20px; border-top: 1px solid var(--border);
  color: var(--secondary); font-size: 13px;
}
footer.site a { color: var(--secondary); }
@media (min-width: 768px) {
  h1 { font-size: 36px; }
}