.main-nav {
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: 260px;
}

.main-nav__logo {
  display: inline-block;
  margin-bottom: 1.8rem;
}

.main-nav__item {
  align-items: center;
  border-radius: var(--radius-md);
  color: var(--color-off-black);
  display: flex;
  font-weight: bold;
  gap: 0.4em;
  padding: 0.6rem 1rem;
  text-decoration: none;
}

.main-nav__item:hover,
.main-nav__item:focus-visible {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.main-nav__item--active {
  background: var(--color-primary-light);
}

.main-nav__sub-nav {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  margin: 0.2rem 0 0.6rem;
}

.main-nav__sub-item {
  border-radius: var(--radius-md);
  color: var(--color-off-black);
  padding: 0.4rem 1rem;
  text-decoration: none;
}

.main-nav__sub-item:hover,
.main-nav__sub-item:focus-visible {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.main-nav__sub-item--active {
  background: var(--color-primary-light);
}