#center {
  display: flex;
  padding: 2vh 2vw;
  height: 90vh;
  min-height: 300px;
  max-width: 100%;
  align-items: center;
  justify-content: center;
}

* {
  padding: 0;
  margin: 10px;
}

.card {
  transition: 200ms ease-in-out;
  background: #fafafa;
  padding: 30px 20px;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  box-shadow: 0 10px 20px -10px #7e7e7e;
  font-family: system-ui;
}

.button {
  transition: 200ms ease-in-out;
  border: 1px solid #cacdfa;
  background: #e5e7fd;
  padding: 10px 15px;
  color: black;
  text-decoration: none;
  border-radius: 20px;
}

.button:hover {
  border: 1px solid #b6bbff;
  background: #b4baff;
  color: blue;
}

@media (prefers-color-scheme: dark) {
  * {
    color: white !important;
  }
  body {
    background-color: rgb(20, 20, 20);
  }
  .card {
    background: rgb(17, 17, 17);
    border-color: #424242;
    box-shadow: 0 10px 20px -10px #080808;
  }
  .button {
    background: #1c1c1f;
  }
  .button:hover {
    background: blue;
    border-color: blue;
  }
}