:root {
  --bg: #F8F8F7; --surface: #FFF; --ink: #0A0A0A;
  --mute: #5E5E5A; --mute-2: #8E8E8A;
  --line: rgba(10, 10, 10, 0.08);
  --accent: #115E59; --accent-bg: #F0FDFA;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: 'Geist', sans-serif; background: var(--bg); color: var(--ink); font-size: 16px; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
a.link { color: var(--accent); border-bottom: 1px solid #CCFBF1; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 32px; }
nav { position: sticky; top: 0; backdrop-filter: blur(16px); background: rgba(248,248,247,0.85); border-bottom: 1px solid var(--line); height: 64px; display: flex; align-items: center; z-index: 50; }
nav .wrap { max-width: 1140px; display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 20px; font-weight: 600; letter-spacing: -0.02em; }
.logo::after { content: ''; width: 6px; height: 6px; border-radius: 999px; background: var(--accent); display: inline-block; margin-left: 5px; position: relative; top: -1px; }
nav .links { display: flex; gap: 28px; font-size: 13px; color: var(--mute); }
nav .links a:hover { color: var(--ink); }

article.post { padding: 48px 0 80px; }
article.post .meta { font-size: 11px; color: var(--mute-2); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 20px; }
article.post h1 { font-size: clamp(36px, 5vw, 48px); line-height: 1.1; letter-spacing: -0.025em; font-weight: 600; margin-bottom: 20px; }
article.post .lead { font-size: 19px; color: var(--mute); line-height: 1.55; margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
article.post h2 { font-size: 26px; font-weight: 600; letter-spacing: -0.02em; margin: 40px 0 12px; line-height: 1.2; }
article.post h3 { font-size: 18px; font-weight: 600; margin: 28px 0 8px; }
article.post p { margin-bottom: 16px; color: #2A2A28; }
article.post ul, article.post ol { padding-left: 24px; margin-bottom: 16px; }
article.post li { margin-bottom: 6px; color: #2A2A28; }
article.post code { background: rgba(10,10,10,0.06); padding: 1px 6px; border-radius: 4px; font-family: 'Geist Mono', monospace; font-size: 14px; color: var(--accent); }
article.post blockquote { border-left: 3px solid var(--accent); padding: 8px 20px; margin: 24px 0; font-style: italic; color: var(--mute); background: rgba(17,94,89,0.04); border-radius: 0 8px 8px 0; }

.cta-inline { margin: 40px 0 24px; padding: 28px; background: var(--ink); color: var(--bg); border-radius: 16px; text-align: center; }
.cta-inline a { display: inline-block; margin-top: 12px; padding: 12px 24px; border-radius: 999px; background: var(--bg); color: var(--ink); font-weight: 600; font-size: 14px; }

.related { margin-top: 56px; padding: 24px; border: 1px dashed var(--line); border-radius: 16px; }
.related h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--mute); margin-bottom: 12px; }
.related ul { list-style: none; padding: 0; }
.related li { margin-bottom: 8px; padding-left: 0; }
.related a { color: var(--accent); }

footer.docfoot { border-top: 1px solid var(--line); padding: 32px 0; margin-top: 64px; background: var(--surface); text-align: center; font-size: 12px; color: var(--mute); }
footer.docfoot .links { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; margin-bottom: 8px; }
footer.docfoot .links a:hover { color: var(--ink); }