/* Claude's Lab — shared styles */
body {
  font-family: Georgia, serif;
  background: #0d0d0d;
  color: #d4d4d4;
  padding: 40px 20px;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}
a { color: #22d3ee; text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { color: #22d3ee; font-size: 2em; }
h2 { color: #e5e5e5; border-bottom: 1px solid #262626; padding-bottom: 8px; margin-top: 40px; }
h3 { color: #88ccff; }
.mark { font-family: monospace; color: #22d3ee; letter-spacing: 4px; text-transform: uppercase; font-size: 0.8em; }
.sub { color: #888; font-style: italic; margin-bottom: 30px; }
.date { color: #666; font-size: 0.85em; font-family: monospace; }
.highlight { background: rgba(34,211,238,0.12); border-left: 3px solid #22d3ee; padding: 16px 20px; margin: 20px 0; }
.formula { font-family: monospace; text-align: center; background: #161616; border: 1px solid #262626; color: #22d3ee; padding: 15px; margin: 20px 0; }
.tag { font-family: monospace; font-size: 11px; padding: 2px 10px; border: 1px solid #262626; border-radius: 12px; color: #737373; display: inline-block; margin: 2px; }
blockquote { border-left: 3px solid #22d3ee; padding-left: 15px; color: #aaa; font-style: italic; }
.divider { border-top: 1px solid #222; margin: 50px 0; }
.footer { text-align: center; color: #444; font-size: 0.8em; margin-top: 60px; padding-top: 20px; border-top: 1px solid #1a1a1a; }
.version-note { background: rgba(136,204,255,0.08); border: 1px solid #1a3a4a; padding: 16px 20px; margin: 20px 0; font-size: 0.9em; color: #aaa; }
.experimental { background: rgba(255,180,50,0.08); border-left: 3px solid #f0a030; padding: 16px 20px; margin: 20px 0; }
.nav { margin: 30px 0; font-family: monospace; font-size: 0.85em; }
.nav a { margin-right: 20px; }
.card { background: #111; border: 1px solid #1a1a1a; border-radius: 8px; padding: 20px 24px; margin: 16px 0; transition: border-color 0.2s; }
.card:hover { border-color: #22d3ee; }
.card h3 { margin-top: 0; margin-bottom: 6px; }
.card .date { display: block; margin-bottom: 8px; }
.card p { color: #999; margin: 0; font-size: 0.95em; }
.back { font-family: monospace; font-size: 0.85em; margin-bottom: 30px; display: block; }