.header-label{text-decoration:none}
.course-nav{border-bottom:1px solid var(--line);margin:0 0 22px;padding-bottom:18px}
.course-nav ol{list-style:none;margin:0;padding:0}
.course-nav a{display:flex;gap:9px;padding:6px 8px;border-radius:6px;font-size:12px;line-height:1.6;text-decoration:none}
.course-nav a>span{flex:0 0 14px;color:var(--muted);font-variant-numeric:tabular-nums}
.course-nav a:hover{background:var(--panel)}
.course-nav a[aria-current=page]{color:var(--accent);font-weight:750}
.course-nav a[aria-current=page]>span{color:var(--accent)}
.course-nav a[aria-current=page]::after{content:'';flex:none;align-self:center;width:5px;height:5px;margin-left:auto;border-radius:50%;background:var(--accent)}
.back-to-course{display:inline-block;color:var(--muted);font-size:12px;margin:0 0 24px}
.lesson-navigation{display:flex;align-items:baseline;justify-content:space-between;gap:24px}
.lesson-next{max-width:65%;text-align:right}
.comparison{margin:24px 0;font-size:13px}
.comparison summary{font-weight:700;cursor:pointer}
.course-index{max-width:1160px;margin:auto;padding:64px 40px}
.course-index h1{max-width:860px;font-size:44px;line-height:1.15}
.course-index>.lead{max-width:70ch}
.course-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;padding:40px 0 48px;margin-top:24px;border-bottom:1px solid var(--line)}
.course-intro>img{display:block;width:100%;height:auto;border-radius:12px}
.course-intro h2{font-size:25px}
.course-intro p{font-size:14px}
.course-list{margin:0;padding:0;list-style:none}
.course-list>li{border-bottom:1px solid var(--line)}
.course-list>li>a{display:flex;align-items:center;gap:26px;padding:30px 8px;text-decoration:none;transition:background .16s}
.course-list>li>a:hover{background:var(--panel)}
.course-row-number{flex:0 0 28px;color:var(--accent);font-family:Montserrat,sans-serif;font-size:22px;font-weight:650}
.course-list h2{font-size:21px;margin:0 0 9px}
.course-list p{font-size:14px;color:var(--muted);margin:0}
.course-list svg{margin-left:auto}
.course-end{max-width:72ch;padding-top:44px}
.course-end h2{font-size:23px}
.course-end p{font-size:14px}
@media(max-width:760px){.course-nav{display:none}.course-nav ol{display:flex;gap:6px;overflow:auto;padding:0 0 6px}.course-nav li{flex:0 0 152px}.course-nav a{font-size:12px;padding:8px;background:var(--panel);min-height:76px}.course-nav a[aria-current=page]{background:var(--soft)}.course-nav a[aria-current=page]::after{display:none}.back-to-course{margin-bottom:18px}.lesson-navigation{align-items:flex-start;gap:20px}.lesson-navigation a{font-size:12px}.lesson-next{max-width:62%}.course-index{padding:34px 22px}.course-index h1{font-size:32px;line-height:1.16}.course-intro{display:flex;flex-direction:column;gap:24px;padding:20px 0 30px;margin-top:16px}.course-intro h2{font-size:22px}.course-intro p{font-size:14px}.course-list>li>a{gap:14px;padding:24px 0}.course-row-number{font-size:19px;flex-basis:20px}.course-list h2{font-size:19px;line-height:1.35}.course-list p{font-size:13px}.course-list svg{width:18px}.course-end{padding-top:30px}.course-end h2{font-size:22px}}
@media print{.course-nav,.back-to-course,.lesson-navigation{display:none}.course-index{padding:0}.course-intro{display:block}.course-intro>img{max-width:480px;margin-bottom:24px}.course-list>li>a{break-inside:avoid}.course-list svg{display:none}}