:root{color-scheme:light;--ink:#172c46;--accent:#145c98;--line:#d8e1eb;--subtle:#52657c}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fff;font:17px/1.7 system-ui,sans-serif}a{color:var(--accent)}a:hover{text-decoration-thickness:2px}code,pre{font-family:ui-monospace,monospace}code{font-size:.9em}pre{background:#f2f6fa;border:1px solid var(--line);padding:18px;overflow:auto;border-radius:5px}h1{font-size:2.2rem;line-height:1.2;margin:.3em 0 .7em}h2{font-size:1.45rem;line-height:1.35;margin:1.7em 0 .55em}h3{font-size:1.12rem}p{margin:.8em 0}li+li{margin-top:.35em}.course-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 28px;background:#132947;color:white}.course-bar a{color:inherit;text-decoration:none}.course-bar>a{font-weight:750}.course-bar nav{display:flex;flex-wrap:wrap;gap:20px;font-size:15px}.course-shell{display:grid;grid-template-columns:260px minmax(0,900px);gap:40px;max-width:1290px;margin:auto}.course-nav{padding:28px 16px;max-height:calc(100vh - 65px);overflow:auto;position:sticky;top:0;font-size:14px;line-height:1.5}.course-nav a{display:flex;gap:8px;padding:7px 9px;text-decoration:none;border-radius:4px}.course-nav a[aria-current]{background:#e8f2fc;font-weight:650}.course-nav span{font-variant-numeric:tabular-nums;color:var(--subtle);min-width:21px}.course-nav p{font-weight:750;border-bottom:1px solid var(--line);padding:8px}main{min-width:0;padding:40px 30px 60px 0}.eyebrow{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--subtle)}.muted{color:var(--subtle)}.actions{display:flex;gap:12px;margin:20px 0}.actions a{border:1px solid var(--line);padding:7px 14px;border-radius:4px;text-decoration:none;font-size:15px}.reading,footer{border-top:1px solid var(--line);margin-top:35px;padding-top:16px}footer{font-size:14px;color:var(--subtle)}table{border-collapse:collapse;display:block;overflow:auto;width:100%;font-size:15px}th,td{padding:10px 13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}blockquote{border-left:3px solid var(--accent);margin:20px 0;padding:4px 18px;background:#f2f7fc}.katex-display{overflow-x:auto;overflow-y:hidden;padding:6px 0}.skip{position:absolute;top:-100px;background:white;padding:10px}.skip:focus{top:0}details{border:1px solid var(--line);padding:12px;margin:15px 0}summary{cursor:pointer;font-weight:650}
@media(max-width:820px){.course-shell{display:block}.course-nav{position:static;max-height:240px;border-bottom:1px solid var(--line);padding:10px 20px}.course-bar{display:block}.course-bar nav{margin-top:10px;gap:14px}main{padding:25px 22px}h1{font-size:1.8rem}}
.title-shell{display:block;max-width:980px;margin:auto}.title-shell main{padding:48px 30px 70px}.title-shell h1{font-size:clamp(2.1rem,5vw,3.1rem);max-width:18ch}.title-lede{font-size:1.15rem;color:var(--subtle);max-width:42rem}.actions{flex-wrap:wrap}.actions a.primary{background:#132947;color:#fff;border-color:#132947}
@media print{.course-bar,.course-nav,.actions,.skip{display:none}.course-shell{display:block}main{padding:0}body{font-size:11pt}.katex-display{overflow:visible}pre{white-space:pre-wrap}a{color:inherit}h2,h3{break-after:avoid}footer{display:none}}