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16px}.lesson-player-nav{display:flex;gap:10px;margin-top:4px}.lesson-player-instructor{display:flex;align-items:center;gap:12px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}.lesson-player-instructor img{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid var(--brass);background:var(--white)}.lesson-player-instructor .name{font-weight:800;font-size:14px;color:var(--ink)}.lesson-player-instructor .role{font-size:12px;color:var(--ink-soft)}.lesson-sidebar{width:340px;flex:none;background:var(--green-dark);color:#fff;overflow-y:auto;-webkit-border-start:1px solid hsla(0,0%,100%,.08);border-inline-start:1px solid hsla(0,0%,100%,.08)}.lesson-sidebar-summary{padding:18px 22px;border-bottom:1px solid hsla(0,0%,100%,.12)}.lesson-sidebar-summary strong{display:block;font-size:14px}.lesson-sidebar-summary span{display:block;font-size:12px;color:var(--brass);margin-top:3px;font-weight:700}.lesson-chapter{border-bottom:1px solid hsla(0,0%,100%,.08)}.lesson-chapter-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 22px;background:none;border:none;color:#fff;font-family:inherit;cursor:pointer;text-align:start}.lesson-chapter-head strong{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:#d8cdb2}.lesson-chapter-head span{font-size:11.5px;color:#96896a;font-weight:700;white-space:nowrap}.lesson-row{display:flex;align-items:center;gap:10px;width:100%;padding:11px 22px 11px 36px;background:none;border:none;color:#d8cdb2;font-family:inherit;font-size:13.3px;font-weight:700;text-align:start;cursor:pointer;transition:background-color .15s ease,color .15s ease}.lesson-row:hover{background:hsla(0,0%,100%,.06);color:#fff}.lesson-row.active{background:var(--gold-dark);color:#fff}.lesson-row .dot{flex:none;width:6px;height:6px;border-radius:50%;background:hsla(0,0%,100%,.3)}.lesson-row.active .dot{background:#fff}.lesson-row .label{flex:1 1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lesson-row .check{flex:none;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:hsla(0,0%,100%,.12);color:transparent;font-size:11px;-webkit-margin-start:auto;margin-inline-start:auto}.lesson-row.completed .check{background:var(--brass);color:var(--green-dark)}@media (max-width:900px){.lesson-player-topbar{padding:12px 16px}.lesson-player-body{flex-direction:column}.lesson-sidebar{width:100%;max-height:320px;-webkit-border-start:none;border-inline-start:none;border-top:1px solid hsla(0,0%,100%,.12);order:2}.lesson-player-main{order:1;padding:18px}}