body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
}

.container {
  max-width: 600px;
  margin: auto;
  padding: 1em;
  background: white;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  margin-top: 2em;
  border-radius: 10px;
}

textarea {
  width: 100%;
  height: 150px;
  margin-bottom: 1em;
  padding: 0.5em;
  font-size: 1em;
}

button {
  padding: 0.5em 1em;
  font-size: 1em;
  margin-bottom: 1em;
  cursor: pointer;
}

#meldung {
  margin-bottom: 1em;
  color: red;
}

#ausgabe-container {
  margin-top: 1em;
}

#ausgabe {
  background: #eef;
  padding: 1em;
  border-radius: 5px;
  white-space: pre-wrap;
}

.hidden {
  display: none;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}


@media (max-width: 600px) {
  .container {
    padding: 1em;
  }
}