:root{--bg:#fbfaf7;--fg:#222;--muted:#666;--line:#e3e0d8;--accent:#2f5d50;--card:#fff}
@media (prefers-color-scheme:dark){:root{--bg:#1b1c1e;--fg:#e8e6e1;--muted:#a3a19b;--line:#34363a;--accent:#8cc2b0;--card:#232427}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","Meiryo",sans-serif;line-height:1.85;font-size:16px}
a{color:var(--accent)}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header.site{border-bottom:1px solid var(--line);padding:20px 0 14px}
.site-title{font-size:1.25rem;font-weight:700;margin:0}
.site-title a{color:var(--fg);text-decoration:none}
.site-desc{margin:2px 0 0;color:var(--muted);font-size:.9rem}
main{padding:28px 0 48px}
h1{font-size:1.6rem;line-height:1.4;margin:0 0 20px}
h2{font-size:1.2rem;margin:36px 0 10px;padding-bottom:4px;border-bottom:1px solid var(--line)}
.note{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:12px 16px;font-size:.95rem}
.muted{color:var(--muted);font-size:.9rem}
footer.site{border-top:1px solid var(--line);padding:20px 0 32px;font-size:.85rem;color:var(--muted)}
footer.site nav a{margin-right:14px;display:inline-block;color:var(--muted)}
footer.site p{margin:10px 0 0}