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.course-series-chevron{margin-top:3px;transform:rotate(-135deg)}.course-series>:not(.course-series-head){padding-left:20px;padding-right:20px}.course-series>:last-child{padding-bottom:16px}.course-blurb{color:var(--muted);max-width:640px;margin:4px 0 20px;font-size:14.5px;line-height:1.7}.course-chapter{margin:22px 0}.course-chapter-title{color:var(--faint);letter-spacing:.02em;margin:0 0 8px;font-size:14px;font-weight:600}.course-lesson-list{border-top:1px solid var(--border);margin:0;padding:0;list-style:none}.course-lesson-list>li{counter-increment:none}.course-lesson{border-bottom:1px solid var(--border);color:var(--foreground);justify-content:space-between;align-items:center;gap:12px;padding:11px 4px;transition:color .15s,background .15s;display:flex}.course-lesson:hover{color:var(--accent);background:var(--code-bg)}.course-lesson-title{font-size:15px;line-height:1.5}.course-lock{opacity:.55;flex-shrink:0;font-size:12px}.course-subgroup-head{color:var(--accent);border-bottom:1px solid var(--border);padding:14px 4px 6px;font-size:14px;font-weight:600}.course-lesson-grouped .course-lesson{padding-left:20px;position:relative}.course-lesson-grouped .course-lesson:before{content:"";background:var(--border);width:2px;position:absolute;top:0;bottom:0;left:7px}.course-pager{border-top:1px solid var(--border);justify-content:space-between;gap:16px;margin-top:64px;padding-top:24px;display:flex}.course-pager-link{border:1px solid var(--border);border-radius:6px;flex-direction:column;gap:4px;max-width:46%;padding:10px 14px;transition:border-color .15s,color .15s;display:flex}.course-pager-link:hover{border-color:var(--accent);color:var(--accent)}.course-pager-link.next{text-align:right;align-items:flex-end}.course-pager-dir{color:var(--faint);font-size:12px}.course-pager-title{font-size:14px;line-height:1.4}