Here is Nevada's definition of kidnapping:
1. A person who willfully seizes, confines, inveigles, entices, decoys, abducts, conceals, kidnaps or carries away a person by any
means whatsoever with the intent to hold or detain, or who holds or
detains, the person for ransom, or reward, or for the purpose of
committing sexual assault, extortion or robbery upon or from the
person, or for the purpose of killing the person or inflicting
substantial bodily harm upon the person, or to exact from relatives,
friends, or any other person any money or valuable thing for the
return or disposition of the kidnapped person, and a person who leads,
takes, entices, or carries away or detains any minor with the intent
to keep, imprison, or confine the minor from his or her parents,
guardians, or any other person having lawful custody of the minor, or
with the intent to hold the minor to unlawful service, or perpetrate
upon the person of the minor any unlawful act is guilty of kidnapping
in the first degree which is a category A felony.
2. A person who willfully and without authority of law seizes, inveigles, takes, carries away or kidnaps another person with the
intent to keep the person secretly imprisoned within the State, or for
the purpose of conveying the person out of the State without authority
of law, or in any manner held to service or detained against the
person’s will, is guilty of kidnapping in the second degree which is a
category B felony.
As you can see, you don't have to take the victim anywhere. Seizing and confining against a person's will suffice. Substantial bodily harm is defined as "Bodily injury which creates a substantial risk of death or which causes serious, permanent disfigurement or protracted loss or impairment of the function of any bodily member or organ; or Prolonged physical pain".