* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

/* Hintergrund */
.background {
  position: fixed;
  inset: 0;
  background: url("../img/logo.png") center/cover no-repeat;
  filter: blur(24px) brightness(0.6);
  transform: scale(1.1);
  z-index: -1;
}

/* Kopfzeile */
.header {
  height: 80px;
  display: flex;
  align-items: center;
  padding: 0 30px;
}

.logo {
  height: 50px;
}

/* Login Box */
.auth-container {
  width: 320px;
  margin: 120px auto;
  padding: 25px;
  background: rgba(0, 0, 0, 0.65);
  border-radius: 12px;
  color: #fff;
  text-align: center;
}

.auth-container h2 {
  margin-bottom: 20px;
}

.auth-container input {
  width: 100%;
  padding: 10px;
  margin-bottom: 12px;
  border: none;
  border-radius: 6px;
}

.auth-container button {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  border: none;
  border-radius: 6px;
  background: #4caf50;
  color: white;
  font-size: 16px;
  cursor: pointer;
}

.auth-container .secondary {
  background: #2196f3;
}

#auth-msg {
  margin-top: 10px;
  font-size: 14px;
}