 <style>
    * {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: #FAF3E6;
  font-family: Arial, sans-serif;
  padding-top: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.login-logo {
  display: block;
  margin: 0 auto 20px auto;
  width: 100%;
  max-width: 500px; /* Desktop-Größe */
  height: auto;
}

.form-container {
  background: white;
  width: 90%;
  max-width: 600px;
  padding: 40px 30px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.tab-buttons {
  display: flex;
  margin-bottom: 25px;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: inset 0 0 3px rgba(0,0,0,0.1);
}

.tab-buttons button {
  flex: 1;
  background: #eee;
  border: none;
  padding: 14px;
  font-weight: bold;
  font-size: 1em;
  cursor: pointer;
  transition: background 0.3s;
}

.tab-buttons button.active {
  background: #ccc;
}

.tab {
  display: none;
}

.tab.active {
  display: block;
}

/* Eingabefelder nur im .form-container anpassen */
.form-container input {
  width: 100%;
  padding: 14px;
  margin-bottom: 18px;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1em;
}

.form-container button[type="submit"] {
  width: 100%;
  padding: 14px;
  background-color: #222;
  color: white;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  font-size: 1em;
}

.form-container button[type="submit"]:hover {
  background-color: #444;
}
.form-container h2 {
  margin-top: 0px;   /* weniger oben */
  padding-top: 0;
  margin-bottom: 40px; /* mehr unten */
  margin-block-start: 0;
}

.error {
  color: red;
  font-size: 0.95em;
  margin-bottom: 20px;
}

@media (max-width: 480px) {
  .form-container {
    padding: 25px 15px;
  }

  .form-container input,
  .form-container button[type="submit"] {
    font-size: 1em;
  }
}
.error {
  background-color: #c00;
  color: #fff;
  padding: 10px;
  border-radius: 5px;
  margin-bottom: 15px;
}

.error a {
  color: #fff;
  text-decoration: underline;
  font-weight: bold;
  display: inline-block;
  margin-top: 5px;
}

  </style>