@import url('/learn/tokens.css');*{box-sizing:border-box}html,body{overflow-x:clip}body{margin:0;background:var(--color-study-paper);color:var(--color-study-ink);font-family:var(--font-study);line-height:1.9}header,main,footer{max-width:800px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:1px solid var(--color-study-rule)}nav{display:flex;gap:20px}a{color:var(--color-study-accent)}h1,h2{line-height:1.5;overflow-wrap:anywhere;font-style:normal}h1{font-size:32px;margin:20px 0}h2{font-size:19px;margin:28px 0 10px}.intro{font-size:18px;color:var(--color-study-muted)}.open{display:inline-block;padding:10px 18px;border:1px solid var(--color-study-rule);border-radius:8px;text-decoration:none;white-space:nowrap}li{margin:12px 0}.meta,footer{font-size:13px;color:var(--color-study-muted)}footer{border-top:1px solid var(--color-study-rule)}@media(max-width:414px){header,main,footer{padding:18px}h1{font-size:26px}}