*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-wrap:anywhere}a{color:inherit;text-underline-offset:5px}a:focus-visible,summary:focus-visible{outline:3px solid currentColor;outline-offset:5px}h1,h2,h3,p{margin:0 0 16px}h1{font-size:clamp(1.8rem,4vw,3.3rem);line-height:1.25;letter-spacing:-.035em}h2{font-size:1.5rem;line-height:1.4}h3{font-size:1.12rem}p{max-width:70ch}main,header,footer,section,article,aside,nav,div{min-width:0}header,main,footer{width:min(1120px,calc(100% - 36px));margin-inline:auto}header{padding:24px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}nav{display:flex;flex-wrap:wrap;gap:12px 22px}nav a{font-size:.9rem}section{scroll-margin-top:24px}.eyebrow{font-size:.77rem;font-weight:750;letter-spacing:.15em;text-transform:uppercase}.lead{font-size:1.12rem}.tag{display:inline-block;padding:4px 10px;border:1px solid currentColor;border-radius:30px;font-size:.8rem}.notice{padding:20px;border:1px solid currentColor;margin:24px 0}.muted{opacity:.75}footer{padding:30px 0 40px;font-size:.85rem}ol,ul{padding-left:1.3em}li{margin-bottom:10px}.button{display:inline-block;padding:10px 18px;border:1px solid currentColor;text-decoration:none}details{padding:18px 0;border-bottom:1px solid currentColor}summary{cursor:pointer;font-weight:650}details p{margin-top:14px}.grid{display:grid;gap:24px}article{min-width:0}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:#f3f0e9;color:#302f46}.coursehero{background:#44436c;color:#fff;padding:35px 25px;border-radius:8px;margin:20px 0 28px}.coursegrid{display:grid;gap:25px}.syllabus{border:1px solid #cec9de;padding:24px;align-self:start}.syllabus h2{font-size:1.05rem}.syllabus nav{flex-direction:column}.syllabus p{font-size:.8rem;margin-top:25px;color:#676178}.lessons article{background:#fff;padding:28px;margin-bottom:20px;border-radius:8px}.lessonlabel{display:inline-block;font-size:.75rem;letter-spacing:.12em;background:#e6e2f3;padding:4px 12px;margin-bottom:18px}.takeaway{border-top:1px solid #e3dfed;padding-top:18px;margin-top:24px;font-size:.9rem}.takeaway b{color:#71628e}.takeaway p{margin:8px 0 0}.review{background:#ded8ed;padding:28px;margin:20px 0;border-radius:8px}@media(min-width:800px){.coursegrid{grid-template-columns:260px 1fr}.syllabus{position:sticky;top:24px}.coursehero{padding:45px}}

/* Local editorial expansion: responsive reading sections */
.reading-expansion{max-width:900px;margin:32px auto 0}.reading-expansion section{padding:26px 0;border-top:1px solid currentColor}.reading-expansion h2{font-size:1.25rem;line-height:1.55}.reading-expansion p{max-width:72ch;line-height:2;margin-bottom:0}.reading-expansion section:last-child{padding-bottom:36px}