:root{--bg:#faf8ff;--fg:#1f1b2e;--muted:#5d5873;--accent:#7a5cd6;--card:#fff;--line:#e6e1f5}
@media (prefers-color-scheme:dark){:root{--bg:#15131c;--fg:#ece9f5;--muted:#a7a2bb;--accent:#b8a4ff;--card:#1e1b28;--line:#2e2a3b}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.7 "Noto Sans Thai","Sukhumvit Set",system-ui,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}h1{font-size:1.9rem;margin:.2em 0}h2{font-size:1.15rem;margin-top:1.8em}
a{color:var(--accent)}.muted{color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:18px 0}
img.avatar{width:96px;height:96px;border-radius:50%;border:2px solid var(--line)}footer{margin-top:40px;font-size:.9rem;color:var(--muted)}