.termin-button {
  position: fixed;
  top: 35%;
  right: 0;
  z-index: 9999;

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

  padding: 32px 20px;
  background-color: #009ee3;
  color: #ffffff;

  font-size: 32px;
  font-weight: 400;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;

  writing-mode: vertical-rl;
  border-radius: 0;

  transform: translateY(-50%);
  transition:
    background-color 0.25s ease,
    padding 0.25s ease;
}

.termin-button:hover,
.termin-button:focus-visible {
  padding-left: 25px;
  padding-right: 25px;
  background-color: #0087c2;
  color: #ffffff;
}

.termin-button:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: -5px;
}

/* Auf kleineren Bildschirmen etwas kompakter */
@media (max-width: 767px) {
  .termin-button {
    padding: 13px 8px;
    font-size: 21px;
    top: 40%;
  }

  .termin-button:hover,
  .termin-button:focus-visible {
    padding-left: 10px;
    padding-right: 10px;
  }
}