.hero-landing {
  position: relative;
}

.surface-cta {
  --cta-size: clamp(8.5rem, 10vw, 10.5rem);

  position: absolute;
  top: 20%;
  right: 20%;
  z-index: 10;

  display: flex;
  align-items: center;
  justify-content: center;

  width: var(--cta-size);
  height: var(--cta-size);
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;

  transform-origin: center center;
}

.surface-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--bs-white, #fff);
  transform-origin: center center;
  animation: surface-pulse 2.4s ease-in-out infinite;
  pointer-events: none;
}

.surface-cta__text {
  position: relative;
  z-index: 1;
  font-size: clamp(0.6875rem, 0.9vw, 0.875rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.05em;
  text-align: center;
  text-transform: uppercase;
  color: var(--bs-primary, #005e66);
  transition: opacity 0.3s ease;
}

.surface-cta.is-expanding::before {
  animation: none;
}

.surface-cta.is-expanding {
  z-index: 1000;
  transition: transform 0.8s ease-in;
  transform: scale(var(--cta-scale, 1));
}

.hero-landing.is-activating .surface-cta__text {
  opacity: 0;
}

@keyframes surface-pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.35);
  }

  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 0.5rem rgba(255, 255, 255, 0.12);
  }
}

@media (max-width: 991.98px) {
  .surface-cta {
    --cta-size: 7rem;
    top: 5%;
    right: 5%;
  }

  .surface-cta__text {
    font-size: 0.6875rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .surface-cta::before {
    animation: none;
  }

  .surface-cta.is-expanding {
    transition: none;
  }

  .surface-cta__text {
    transition: none;
  }
}