#MobileSearch > .header {
  position: absolute;
  top: 0;
  left: 0;
  z-index: var(--z-mobile-search);
  width: 100%;
  height: 3.5rem;
  background: var(--color-background);
  display: flex;
  align-items: center;
  padding-left: max(0.25rem, env(safe-area-inset-left));
  padding-right: max(0.5rem, env(safe-area-inset-right));

  > .SearchInput {
    margin-left: 0.25rem;
    flex: 1;
  }

  // Target: Old Firefox (Waterfox Classic)
  @supports not (padding-left: max(0.25rem, env(safe-area-inset-left))) {
    padding-left: 0.25rem;
    padding-right: 0.5rem;
  }
}

#MobileSearch > .footer {
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: var(--z-mobile-search);
  width: 100%;
  height: 3.5rem;
  background: var(--color-background);
  display: flex;
  align-items: center;
  padding-left: max(1rem, env(safe-area-inset-left));
  padding-right: max(0.5rem, env(safe-area-inset-right));

  body:not(.keyboard-visible) & {
    padding-bottom: 0;
    height: 3.5rem;
  }

  @media (max-width: 600px) {
    @supports (padding-bottom: env(safe-area-inset-bottom)) {
      body:not(.keyboard-visible) & {
        padding-bottom: env(safe-area-inset-bottom);
        height: calc(3.5rem + env(safe-area-inset-bottom));
      }
    }
  }

  // Target: Old Firefox (Waterfox Classic)
  @supports not (padding-left: max(1rem, env(safe-area-inset-left))) {
    padding-left: 1rem;
    padding-right: 0.5rem;

    body:not(.keyboard-visible) & {
      padding-bottom: 0;
      height: 3.5rem;
    }
  }

  > .counter {
    flex: 1;
    color: var(--color-text-secondary);
  }
}

#MobileSearch:not(.active) {
  .header, .footer {
    // `display: none` will prevent synchronous focus on iOS
    transform: translateX(-999rem);
  }
}