/* Metagenome site harmony theme (lightweight) */
:root{
  --bg:#ffffff;
  --ink:#0a0a0a;
  --ink-mute:#4b5563;
  --line:#e5e7eb;
  --brand:#111827;
  --accent:#0f766e;
  --link:#1f2937;
  --maxw: 880px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;line-height:1.7}
a{color:var(--link);text-decoration:underline;text-underline-offset:2px}
header.site{border-bottom:1px solid var(--line);background:#fafafa}
.container{max-width:var(--maxw);margin:0 auto;padding:16px}
nav ul{display:flex;gap:16px;list-style:none;margin:0;padding:8px 0;flex-wrap:wrap}
nav a{display:block;padding:6px 10px;border-radius:6px;text-decoration:none;color:#111827}
nav a:hover{background:#eef2ff}
h1{font-size:clamp(22px,3.2vw,30px);line-height:1.3;margin:16px 0 8px}
h2{font-size:clamp(18px,2.4vw,22px);margin:24px 0 8px}
p{margin:8px 0}
ul,ol{padding-left:20px}
.section{padding:8px 0 16px;border-top:1px solid var(--line)}
.lead{color:var(--ink-mute)}
.figure{margin:16px 0;text-align:center}
.figure img{max-width:680px;width:100%;height:auto;border:1px solid var(--line);border-radius:8px}
table{width:100%;border-collapse:collapse;margin:12px 0}
th,td{border:1px solid var(--line);padding:8px;vertical-align:top}
tfoot,small,caption{color:var(--ink-mute)}
footer.site{border-top:1px solid var(--line);margin-top:32px;background:#fafafa}
.footergrid{display:grid;grid-template-columns:1fr;gap:4px}
@media(min-width:720px){
  .footergrid{grid-template-columns:1fr auto}
}