.course-intro h1{max-width:1040px;margin:0 0 24px;font-size:clamp(34px,4.4vw,62px);line-height:1.14;letter-spacing:-.035em;text-wrap:balance}.course-intro .lead{max-width:760px}.course-intro .actions{margin-top:26px;flex-wrap:wrap}.course-breadcrumb{display:flex;gap:12px;font-size:12px;margin-bottom:34px}.course-breadcrumb a:hover{color:var(--cobalt)}.course-section{padding-top:40px}.course-section .container,.course-more .container{max-width:1050px}.course-guidance{font-size:14px;line-height:1.8;color:var(--muted);max-width:75ch;margin-bottom:24px}.course-list{list-style:none;padding:0;margin:0}.course-item{display:grid;grid-template-columns:52px minmax(0,1fr);gap:22px;border-top:1px solid var(--line);padding:28px 0;scroll-margin-top:120px}.course-item:last-child{border-bottom:1px solid var(--line)}.course-number{font-size:16px;color:var(--cobalt);font-variant-numeric:tabular-nums;padding-top:4px}.course-item h2{font-size:clamp(21px,2.1vw,28px);line-height:1.4;letter-spacing:-.025em;margin:0 0 16px}.course-player summary{display:list-item;width:fit-content;padding:12px 18px;border:1px solid var(--line);border-radius:9px;cursor:pointer;font-weight:600;font-size:14px;min-height:46px}.course-player summary:hover,.course-player[open] summary{background:var(--mint);border-color:var(--cobalt)}.course-player summary:focus-visible,.course-source:focus-visible{outline:2px solid var(--cobalt);outline-offset:4px}.course-screen:not(:empty){margin-top:18px;aspect-ratio:16/9;width:100%;background:var(--ink)}.course-screen noscript p{color:var(--paper);padding:20px;line-height:1.7}.course-screen iframe{display:block;width:100%;height:100%;border:0}.course-source{display:inline-flex;min-height:44px;align-items:center;margin-top:5px;color:var(--cobalt);font-size:13px;text-decoration:underline;text-underline-offset:4px}.course-more h2{font-size:clamp(29px,3.2vw,42px);letter-spacing:-.03em;margin-bottom:24px}.course-more p{max-width:75ch;font-size:15px;line-height:1.85}.course-links{display:flex;flex-wrap:wrap;gap:6px 25px;margin:20px 0}.course-links a{display:inline-flex;min-height:44px;align-items:center;color:var(--cobalt);font-size:14px;text-decoration:underline;text-underline-offset:4px}.course-more .course-support{color:var(--muted);font-size:13px}.course-sites{display:flex;flex-wrap:wrap;gap:24px 48px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}.course-sites a{font-size:13px;font-weight:600}.course-sites span{display:block;margin-top:6px;font-size:12px;font-weight:400;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width: 650px){.course-intro .actions{align-items:flex-start;gap:20px}.course-breadcrumb{margin-bottom:25px}.course-section{padding-top:30px}.course-item{grid-template-columns:28px minmax(0,1fr);gap:12px;padding:24px 0}.course-number{font-size:13px}.course-player summary{padding:11px 13px;font-size:13px}.course-guidance{font-size:13px}.course-links{display:grid}}