.performance-stats{margin-top:20px}
.mastery-panel{padding:0;overflow:hidden}
.mastery-panel>.section-title{padding:23px 23px 8px;margin:0}
.mastery-domain{border-top:1px solid var(--line)}
.mastery-domain summary{display:flex;align-items:center;gap:13px;padding:16px 23px;cursor:pointer;list-style:none}
.mastery-domain summary::-webkit-details-marker{display:none}
.mastery-domain-title{display:flex;flex-direction:column;gap:3px;flex:1}
.mastery-domain-title b{font-size:12px}
.mastery-domain-title small{font-size:9px;color:var(--muted)}
.mastery-chevron{font-size:22px;color:var(--green);transition:transform .18s}
.mastery-domain[open] .mastery-chevron{transform:rotate(90deg)}
.mastery-medal{color:#bf8c35;display:grid;place-items:center}
.mastery-medal svg{width:20px;height:20px}
.mastery-detail{padding:4px 23px 22px 67px;background:#f7faf4}
.mastery-bar{margin:11px 0 17px}
.mastery-bar-head{display:flex;justify-content:space-between;gap:12px;font-size:10px}
.mastery-bar-head b{font:10px var(--mono);color:var(--green)}
.mastery-bar .progress-track{height:7px;background:#e2eadf;border-radius:5px;margin-top:7px;overflow:hidden}
.mastery-bar .progress-track span{display:block;height:100%;background:#4d8a66;border-radius:5px}
.mastery-bar small{display:block;font-size:8px;color:var(--muted);margin-top:4px}
.mastery-topics{border-top:1px solid var(--line);margin-top:20px;padding-top:10px}
.mastery-topics>div{display:flex;justify-content:space-between;gap:15px;padding:7px 0;font-size:9px}
.mastery-topics small{color:var(--muted);text-align:right}
.performance-lower-title{margin-top:30px}
.recent-sessions{padding:8px 23px}
.mastery-hints .mastery-detail{padding-bottom:18px}
@media(max-width:650px){.mastery-domain summary{padding:14px 15px}.mastery-detail{padding:4px 15px 18px 57px}.mastery-topics>div{display:block}.mastery-topics small{display:block;text-align:left;margin-top:3px}.recent-sessions{padding:7px 15px}}