:root { --bg: #0d1117; --text: #c9d1d9; --accent: #58a6ff; --card: #161b22; --border: #30363d; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; }
header { border-bottom: 1px solid var(--border); padding: 1rem 2rem; display: flex; justify-content: center; }
nav { max-width: 800px; width: 100%; display: flex; justify-content: space-between; align-items: center; }
.logo { color: var(--accent); font-weight: 700; font-size: 1.2rem; text-decoration: none; }
.nav-links a { color: var(--text); text-decoration: none; margin-left: 1.5rem; }
main { max-width: 800px; margin: 2rem auto; padding: 0 1.5rem; }
.post h1 { font-size: 2rem; color: #fff; margin-bottom: 0.5rem; }
.meta { color: #8b949e; margin-bottom: 2rem; }
.category { background: var(--accent); color: #000; padding: 2px 8px; border-radius: 4px; font-size: 0.8rem; margin-left: 0.5rem; }
.tag { color: #8b949e; font-size: 0.8rem; margin-left: 0.5rem; }
.content h2 { color: #fff; margin: 2rem 0 1rem; font-size: 1.4rem; }
.content h3 { color: var(--accent); margin: 1.5rem 0 0.5rem; }
.content p { margin-bottom: 1rem; }
.content a { color: var(--accent); }
.content code { background: var(--card); padding: 2px 6px; border-radius: 3px; font-size: 0.9rem; }
.content pre { background: var(--card); padding: 1rem; border-radius: 8px; overflow-x: auto; margin: 1rem 0; }
.content ul, .content ol { margin: 1rem 0 1rem 1.5rem; }
.content li { margin-bottom: 0.5rem; }
.cta-box { background: linear-gradient(135deg, #1a3a5c, #1a2744); border: 1px solid var(--accent); border-radius: 8px; padding: 1.5rem; margin: 2rem 0; }
.cta-box h3 { color: var(--accent); margin-bottom: 0.5rem; }
.related { margin: 2rem 0; padding: 1rem; border: 1px solid var(--border); border-radius: 8px; }
.related h3 { color: #fff; margin-bottom: 0.5rem; }
.related a { color: var(--accent); }
.post-list h1 { color: #fff; margin-bottom: 2rem; }
.post-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; margin-bottom: 1rem; }
.post-card h2 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.post-card h2 a { color: #fff; text-decoration: none; }
.post-card h2 a:hover { color: var(--accent); }
footer { text-align: center; padding: 2rem; color: #8b949e; border-top: 1px solid var(--border); margin-top: 3rem; }
footer small { color: #6e7681; }
@media (max-width: 600px) { main { padding: 0 1rem; } .post h1 { font-size: 1.5rem; } }