:root{--fg:#111;--bg:#fff;--muted:#666;--accent:#0a7d4b;--line:#e5e5e5;--max:72rem}*{box-sizing:border-box}body,html{margin:0;padding:0;color:var(--fg);background:var(--bg);font-family:system-ui,-apple-system,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;line-height:1.6}a{color:var(--accent)}footer nav,header nav{padding:1rem 1.5rem}footer nav,header nav,main{max-width:var(--max);margin:0 auto}main{padding:1.5rem}h1{line-height:1.25}table{border-collapse:collapse;width:100%;margin:1rem 0}td,th{border:1px solid var(--line);padding:.5rem .75rem;text-align:left}label{display:inline-block;margin:.25rem .5rem .25rem 0}input,select{padding:.3rem}