.three {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
    color: #fff;
    visibility: hidden;
    opacity: 0;
    animation: show-contact 0.8s ease forwards;
    animation-delay: 0.2s;
    z-index: 10;
}

body {
  margin: 0;
}

#bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
}

#ui {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 10;

  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  color: white;

  padding: 12px;
  border-radius: 10px;
  font-family: system-ui, sans-serif;
}

#ui button,
#ui input {
  margin-top: 6px;
  width: 100%;
}