.line-friend-banner {
  position: fixed;
  left: 1.6rem;
  bottom: 1.6rem;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.1rem 1.8rem;
  background-color: rgb(var(--color-background));
  color: rgb(var(--color-foreground));
  border: 1px solid rgba(var(--color-foreground), 0.55);
  text-decoration: none;
  font-family: var(--font-heading-family);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08rem;
  text-transform: uppercase;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.line-friend-banner:hover {
  background-color: rgb(var(--color-button));
  color: rgb(var(--color-button-text));
}

.line-friend-banner--above-announcement {
  bottom: calc(80px + 1.6rem);
}

.line-friend-banner__icon {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

@media screen and (max-width: 749px) {
  .line-friend-banner {
    left: 1.2rem;
    bottom: 1.2rem;
    padding: 0.9rem 1.4rem;
    font-size: 1.1rem;
  }

  .line-friend-banner--above-announcement {
    bottom: calc(80px + 1.2rem);
  }
}