.centered {
  position: absolute;
  inset: 0 0 0 0;
  margin: auto;

  display: flex;
}

.heading {
  font-family: monospace;
  font-size: 2em;
  font-weight: bold;
  color: #ffc0cb; /* #ac4aed */
}

/* =========================================================== *
 *                      Type Writer Effect                     *
/* =========================================================== */

#typing-wrapper {
  margin: auto auto;
  /* width: 71ch; /* prompt + command + cursor length */
  /* height: 21ch; */
  text-align: start;

  border: 0.5ch solid #ffc0cb; /* #ac4aed */
  background-color: var(--theme-bg);
  padding: 20px;

  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: start;
  align-content: center;
  align-items: start;
  animation: kfs-ending 2s 10s forwards;
}

#typing-prompt {
  color: var(--theme-tty-prompt);
  width: 10ch; /* prompt + command length */
  animation: kfs-typing 0.5s steps(4), kfs-cursor-blink 1.2s steps(1, start) 0.6s forwards;
  white-space: nowrap;
  overflow: hidden;
  border-right: 1ch solid;
  margin-bottom: 0.5ch;
}

#typing-result {
  color: var(--theme-tty-warning);
  /* "4.8s" means the result is shown 1.8s after typing ends */
  animation: unhide 1s 1.8s forwards;
  visibility: hidden;
  white-space: nowrap; /* preserve linebreaks */
}

#typing-prompt-segfault {
  color: var(--theme-tty-prompt);
  width: 47ch; /* prompt + command length */
  /* animation: kfs-typing-segfault 3s steps(36) 2.6s, cursor-blink 0.6s steps(1, start) 3s infinite alternate; */
  animation: kfs-typing-segfault 3s steps(36) 4s forwards, cursor-blink-segfault 0.6s steps(1, start) 7.1s infinite alternate;
  white-space: nowrap;
  overflow: hidden;
  border-right: 1ch solid;
  margin-bottom: 0.5ch;
  visibility: hidden;
}

#typing-result-segfault {
  /* "4.8s" means the result is shown 1.8s after typing ends */
  animation: unhide 1s 8.3s forwards;
  visibility: hidden;
  white-space: nowrap; /* preserve linebreaks */
}

@keyframes kfs-typing {
  from {
    width: 6ch; /* ignore prompt width */
  }
}

@keyframes kfs-typing-segfault {
  from {
    width: 11ch; /* ignore prompt width */
    visibility: visible;
  }
  25% {
    width: 11ch;
  }
  to {
    visibility: visible;
  }
}
    
@keyframes kfs-cursor-blink {
  from {
    border-color: transparent;
  }
  50% {
    border-color: currentColor;
  }
  to {
    border-color: transparent;
  }
}

@keyframes cursor-blink-segfault {
  50% {
    border-color: transparent;
  }
}

@keyframes unhide {
  to {
    visibility: visible;
  }
}