.logo {
  width: 100%;
}

@media (--viewport-lg) and (min-height: 34rem) {
  .is-fixed .logo {
    position: fixed;
    width: var(--logo-size-lg);
    z-index: 10;
  }
}

@media (--viewport-xl) and (min-height: 34rem) {
  .is-fixed .logo {
    width: var(--logo-size-xl);
  }
}

.logo__link {
  display: block;
  position: relative;
  margin: 0 auto;
  max-width: 16rem;
  border-radius: 50%;
  transition: box-shadow var(--transition-fs) ease-out;
  padding-bottom: 100%;
}

.logo__link:focus {
  box-shadow: var(--image-focus);
}

.logo__link:before {
  filter: drop-shadow(0.2rem 0.2rem 0.2rem rgba(0, 0, 0, 0.5));
}

.logo__image {
  bottom: 0;
  display: block;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
  transition: opacity var(--transition-sl) ease-out;
}