.course-page{flex-direction:column;min-height:calc(100vh - 64px);display:flex}.course-page__bar{border-bottom:1px solid var(--border,#e8eaef);padding:16px 40px}.course-page__back{font-family:var(--font-inter,sans-serif);color:var(--text-muted,#0f171f99);align-items:center;gap:8px;font-size:14px;font-weight:500;text-decoration:none;transition:color .15s;display:inline-flex}.course-page__back:hover{color:var(--text,#0f171f)}.course-page__embed{flex:1;padding:24px 40px 40px}.course-page__embed .course-embed__iframe,.course-page__embed .course-embed__loading,.course-page__embed .course-embed__error{width:100%;height:calc(100vh - 180px);min-height:500px}.course-page__error{font-family:var(--font-inter,sans-serif);color:var(--text-muted,#0f171f80);padding:80px 40px;font-size:16px}@media (max-width:1199px){.course-page__bar,.course-page__embed{padding-left:24px;padding-right:24px}}@media (max-width:799px){.course-page__embed{padding:16px}.course-page__embed .course-embed__iframe,.course-page__embed .course-embed__loading,.course-page__embed .course-embed__error{border-radius:12px;height:calc(100vh - 140px)}}