.page-nav {
  position: fixed;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
  z-index: 400;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.nav-arrow {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  text-decoration: none;
  font-size: 1.35rem;
  color: #f7f8ff;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.24);
  transition: transform 140ms ease, background 140ms ease;
}

.nav-arrow:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.24);
}

.nav-label {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  font-family: inherit;
  font-weight: 500;
}

@media (max-width: 640px) {
  .page-nav {
    bottom: 1rem;
  }

  .nav-arrow {
    width: 2.25rem;
    height: 2.25rem;
    font-size: 1.2rem;
  }

  .nav-label {
    font-size: 0.9rem;
  }
}