.avatar{width:40px;height:40px;border-radius:50%;display:flex;justify-content:center;align-items:center;background-color:var(--bg-tertiary);color:var(--text-primary);font-size:14px;font-weight:600;text-transform:uppercase;border:2px solid var(--border-default);cursor:pointer;transition:all var(--transition-fast);overflow:hidden;flex-shrink:0}.avatar:hover{border-color:var(--border-strong);transform:scale(1.05)}.avatar img{width:100%;height:100%;border-radius:50%;-o-object-fit:cover;object-fit:cover}.avatar.small{width:28px;height:28px;font-size:11px;border-width:1.5px}.avatar.medium{width:36px;height:36px;font-size:13px}.avatar.large{width:56px;height:56px;font-size:20px;border-width:2.5px}.avatar.xlarge{width:80px;height:80px;font-size:28px;border-width:3px}