.CourseHeader_header__LbumV{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:hsla(0,0%,100%,.82);backdrop-filter:saturate(150%) blur(10px);-webkit-backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--border)}.CourseHeader_inner__bBiB_{height:74px;display:flex;align-items:center;gap:32px}.CourseHeader_back__igS9W{flex:none;font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;transition:color .18s}.CourseHeader_back__igS9W:hover{color:var(--green)}.CourseHeader_sections__r0wv9{display:flex;align-items:center;gap:34px;margin-inline:auto}.CourseHeader_sections__r0wv9 a{font-size:16px;font-weight:500;color:var(--muted);white-space:nowrap;transition:color .18s}.CourseHeader_sections__r0wv9 a:hover{color:var(--graphite)}.CourseHeader_dot__i_6BP{display:inline-block;width:7px;height:7px;margin-left:6px;border-radius:50%;background:var(--green);vertical-align:middle;transform:translateY(-1px)}.CourseHeader_active__dJrXv{color:var(--graphite)!important;font-weight:600!important;position:relative}.CourseHeader_active__dJrXv:after{content:"";position:absolute;left:0;right:0;bottom:-26px;height:2px;background:var(--green);border-radius:2px}.CourseHeader_account__0o_Hd{flex:none;position:relative;display:flex;align-items:center;gap:12px}.CourseHeader_editSwitch__ggClP{position:absolute;top:50%;right:calc(100% + 12px);transform:translateY(-50%);display:inline-flex;align-items:center;padding:0;border:0;border-radius:var(--radius-pill);background:none;cursor:pointer}.CourseHeader_editSwitch__ggClP:focus-visible{outline:2px solid var(--green);outline-offset:3px}.CourseHeader_editSwitch__ggClP:hover:not(.CourseHeader_editSwitchOn___ktul) .CourseHeader_switchTrack__HznXV{background:#c4c4c4}.CourseHeader_switchTrack__HznXV{flex:none;position:relative;width:42px;height:24px;border-radius:var(--radius-pill);background:var(--border-soft);transition:background .2s}.CourseHeader_switchKnob__xnu2Z{position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:var(--white);box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .2s}.CourseHeader_editSwitchOn___ktul .CourseHeader_switchTrack__HznXV{background:var(--green)}.CourseHeader_editSwitchOn___ktul .CourseHeader_switchKnob__xnu2Z{transform:translateX(18px)}@media (prefers-reduced-motion:reduce){.CourseHeader_switchKnob__xnu2Z,.CourseHeader_switchTrack__HznXV{transition:none}}.CourseHeader_profile___9OYi{flex:none;display:inline-flex;align-items:center;gap:10px;padding:7px 8px 7px 16px;border:1px solid var(--border);border-radius:var(--radius-pill);font-size:15px;font-weight:500;color:var(--graphite);white-space:nowrap;transition:background .18s,border-color .18s,color .18s}.CourseHeader_profile___9OYi:hover{border-color:var(--green);color:var(--green)}.CourseHeader_profileName__k6Jrz{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.CourseHeader_avatar__1b8Om{flex:none;width:30px;height:30px;border-radius:50%;background:var(--green);color:var(--white);display:grid;place-items:center}.CourseHeader_avatar__1b8Om svg{width:18px;height:18px;display:block}.CourseHeader_profileActive__Zy6MN{border-color:var(--green);color:var(--green);background:var(--green-tint)}.CourseHeader_profileText___M1yT{flex:none;display:inline-flex;align-items:center;padding:7px 16px;border:1px solid var(--border);border-radius:var(--radius-pill);font-size:15px;font-weight:500;color:var(--graphite);white-space:nowrap;transition:border-color .18s,color .18s}.CourseHeader_profileText___M1yT:hover{border-color:var(--green);color:var(--green)}@media (max-width:1040px){.CourseHeader_editSwitch__ggClP{position:static;transform:none}}@media (max-width:860px){.CourseHeader_inner__bBiB_{gap:20px;overflow-x:auto}.CourseHeader_sections__r0wv9{gap:22px;margin-inline:0}}