:root{--bg:#fafafa;--fg:#1d1f23;--muted:#6b7280;--card:#fff;--border:#e5e7eb;--accent:#2563eb;--code:#f3f4f6}
@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--fg:#e6e8eb;--muted:#9aa3af;--card:#171a21;--border:#2a2f3a;--accent:#7aa2ff;--code:#1f232b}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.75 system-ui,-apple-system,"Hiragino Sans","Noto Sans JP","Segoe UI",sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:880px;margin:0 auto;padding:0 20px}
.site-header{border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:1}
.nav{display:flex;justify-content:space-between;align-items:center;height:56px}
.brand{font-weight:700;color:var(--fg)}
.nav nav a{margin-left:18px;color:var(--muted)}.nav nav a:hover{color:var(--fg)}
main{padding:40px 20px 64px}
h1,h2,h3{line-height:1.3}h2{font-size:1.3rem;margin-top:48px;padding-bottom:6px;border-bottom:1px solid var(--border)}
.hero{display:flex;gap:28px;align-items:center}
.avatar{border-radius:50%;border:1px solid var(--border);flex-shrink:0}
.hero h1{margin:0;font-size:2.2rem}.lead{margin:4px 0 10px;color:var(--muted);font-size:1.1rem}
.tags{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:6px}
.tags li{font-size:.8rem;padding:2px 10px;border:1px solid var(--border);border-radius:999px;color:var(--muted)}
.btn{display:inline-block;padding:6px 16px;border-radius:8px;background:var(--accent);color:#fff;font-size:.9rem}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}.btn:hover{text-decoration:none;opacity:.9}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.card{display:block;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;color:var(--fg);transition:border-color .15s}
.card:hover{border-color:var(--accent);text-decoration:none}
.card h3{margin:0 0 6px;font-size:1rem}.card p{margin:0 0 10px;font-size:.88rem;color:var(--muted);line-height:1.6}
.lang{font-size:.75rem;color:var(--muted)}.lang::before{content:"●";margin-right:4px;color:var(--accent)}
.more{margin-top:14px;font-size:.9rem}
.posts{list-style:none;padding:0}.posts li{padding:10px 0;border-bottom:1px solid var(--border);display:flex;gap:16px}
.posts time,.meta{color:var(--muted);font-size:.85rem;font-variant-numeric:tabular-nums;white-space:nowrap}
.prose img{max-width:100%}.prose pre,.prose code{background:var(--code);border-radius:6px;font-size:.88em}
.prose code{padding:.1em .35em}.prose pre{padding:14px;overflow-x:auto}.prose pre code{padding:0;background:none}
.prose blockquote{margin:0;padding-left:14px;border-left:3px solid var(--border);color:var(--muted)}
.back{margin-top:40px}.center{text-align:center;padding:40px 0}.center h1{font-size:4rem;margin:0}
.site-footer{border-top:1px solid var(--border);color:var(--muted);font-size:.85rem;padding:20px 0}
@media (max-width:600px){.hero{flex-direction:column;text-align:center;gap:16px}.tags{justify-content:center}.posts li{flex-direction:column;gap:2px}.hero h1{font-size:1.8rem}}