.groups-dialog{width:min(1100px,94vw);max-width:1100px;max-height:90vh;padding:30px;border:1px solid var(--silver);border-radius:18px;color:var(--navy);background:white}.groups-dialog::backdrop{background:rgba(0,43,73,.45)}.groups-dialog h2{margin:8px 0;font:normal 30px Georgia,serif}.groups-dialog h3{font-size:20px}.group-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.group-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:28px}.group-list{border-right:1px solid var(--silver);padding-right:24px}.group-choice{display:block;width:100%;text-align:left;margin:10px 0;white-space:normal}.groups-dialog details{margin-top:20px;padding:16px;border:1px solid var(--silver);border-radius:12px}.groups-dialog summary{cursor:pointer;font-weight:600}.groups-dialog label{display:block;font-size:14px;font-weight:600;margin:16px 0}.groups-dialog input,.groups-dialog textarea{display:block;width:100%;box-sizing:border-box;padding:12px;margin-top:8px;border:1px solid var(--silver);border-radius:8px;font:inherit}.groups-dialog textarea{min-height:110px}.groups-dialog .muted{font-size:13px;line-height:1.7}.group-notice:empty{display:none}.group-notice{padding:12px;background:var(--ice);border-radius:8px}.group-summary{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px}.group-summary>section{background:var(--ice);padding:18px;border-radius:12px}.group-ranking,.group-members{list-style:none;padding:0}.group-ranking li,.group-members li{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid var(--silver);overflow-wrap:anywhere}.group-post{border:1px solid var(--silver);padding:18px;border-radius:12px;margin-top:16px;overflow-wrap:anywhere}.group-post>div{display:flex;gap:16px;justify-content:space-between}.group-post small{color:var(--muted);font-size:12px}.group-post p{white-space:pre-wrap;line-height:1.7}.group-invite{background:var(--ice);border:1px solid var(--silver);padding:18px;border-radius:12px;margin:16px 0}.group-invite code{display:block;overflow-wrap:anywhere;margin:12px 0;user-select:all}.group-danger{color:#992c2c;margin-top:24px}.group-empty{padding:30px;background:var(--ice);border-radius:14px}@media(max-width:800px){.group-layout,.group-summary{grid-template-columns:1fr}.group-list{border-right:0;border-bottom:1px solid var(--silver);padding:0 0 20px}.groups-dialog{padding:20px}.group-post>div{flex-direction:column;gap:4px}}

.lesson-checklist label{display:flex;align-items:flex-start;gap:12px;margin:12px 0;line-height:1.6}.lesson-checklist input{width:18px;height:18px;margin-top:4px;accent-color:var(--blue);flex-shrink:0}.lesson-check{font-weight:650;padding:15px;background:var(--ice);border-radius:10px}.subtopic-checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 24px}.subtopic-checks label:has(input:checked){color:var(--muted)}@media(max-width:650px){.subtopic-checks{grid-template-columns:1fr}}