/* Only the owner-approved Courses disclosure and its nested groups. */
.site-shell-header nav .cfs-course-menu{position:relative;display:flex;align-items:center;gap:3px}
.site-shell-header nav .cfs-course-toggle{display:inline-flex;align-items:center;justify-content:center;gap:6px;width:auto;height:32px;padding:0;border:0;background:transparent;color:#bdbdbd;font:400 10px/1.5 Inter,Arial,sans-serif;cursor:pointer;border-radius:5px}
.site-shell-header nav .cfs-course-toggle:focus-visible,.site-shell-header nav .cfs-course-formats a:focus-visible,.site-shell-header nav .cfs-course-formats summary:focus-visible{outline:2px solid #ffd400;outline-offset:3px}
.site-shell-header nav .cfs-course-formats{position:absolute;top:100%;left:-20px;width:300px;max-height:70vh;overflow:auto;padding:12px;background:#101010;border:1px solid #444;border-radius:14px;box-shadow:0 18px 36px #0005;color:#f4f4f0;box-sizing:border-box}
.site-shell-header nav .cfs-course-formats[hidden]{display:none!important}
.site-shell-header nav .cfs-course-formats summary{padding:12px;cursor:pointer;font:600 13px/1.5 Inter,Arial,sans-serif;border-radius:8px}
.site-shell-header nav .cfs-course-formats summary:hover{background:#242424}
.site-shell-header nav .cfs-course-formats details+details{border-top:1px solid #333}
.site-shell-header nav .cfs-course-links{display:grid;padding:0 0 8px 16px}
.site-shell-header nav .cfs-course-links a{display:block;padding:11px 10px;color:#eee;font:400 12px/1.5 Inter,Arial,sans-serif;white-space:normal;border-radius:6px}
.site-shell-header nav .cfs-course-links a:hover{background:#242424;color:#ffd400}
@media(max-width:1024px){
 .site-shell-header nav.mobile-open{max-height:calc(100dvh - 140px);overflow:auto}
 .site-shell-header nav .cfs-course-menu{display:grid;grid-template-columns:1fr;width:100%}
 .site-shell-header nav .cfs-course-toggle{justify-content:space-between;width:100%;height:44px;padding:12px 14px;font-size:12px;color:#f3f3ef}
 .site-shell-header nav .cfs-course-formats{position:static;grid-column:1/-1;width:100%;max-height:none;overflow:visible;box-shadow:none;margin:0 0 8px;border-color:#333}
 .site-shell-header nav .cfs-course-links a{font-size:12px}
}

.site-shell-header nav .cfs-course-chevron{flex:none;transition:transform .2s ease}
.site-shell-header nav .cfs-course-toggle[aria-expanded="true"] .cfs-course-chevron{transform:rotate(180deg)}
.site-shell-header nav .cfs-course-toggle:hover,.site-shell-header.is-scrolled nav .cfs-course-toggle{color:#f4f4f0}
@media(prefers-reduced-motion:reduce){.site-shell-header nav .cfs-course-chevron{transition:none}}