.sound-bar {
  animation: pulse-bar 1.15s ease-in-out infinite;
  transform-origin: bottom;
}

.sound-bar:nth-child(2) {
  animation-delay: 0.12s;
}

.sound-bar:nth-child(3) {
  animation-delay: 0.24s;
}

.sound-bar:nth-child(4) {
  animation-delay: 0.36s;
}

#contact-modal.is-open .modal-panel {
  animation: modal-in 260ms ease both;
}

@keyframes pulse-bar {
  0%,
  100% {
    transform: scaleY(0.45);
    opacity: 0.55;
  }

  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}