header button {
  padding: 10px 20px;
  font-size: 16px;
  border-radius: 5px;
  border: none;
  background-color: #f44336;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s ease-in-out;
}

header button:hover {
  background-color: #c41b18;
}

body {
  background-color: #121212;
  color: #fff;
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.container {
  height: 65vh;
  max-width: 90vw;
  margin: 0 auto;
  padding: 20px;
  margin-top: 10vh;
  margin-bottom: 10vh;
  background-color: #2c2c2c;
  border-radius: 5px;
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
}

h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.password-options {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 5px;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.checkbox-group label {
  margin-right: 10px;
}

.password-output {
  margin-bottom: 20px;
}

#passwordOutput {
  width: 88vw;
  height: 33vh;
  padding: 10px;
  font-size: 16px;
  border-radius: 5px;
  border: none;
  background-color: #424242;
  color: #fff;
  resize: none;
}

.green {
  padding: 10px 20px;
  font-size: 16px;
  border-radius: 5px;
  border: none;
  background-color: #4caf50;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s ease-in-out;
}

.green:hover {
  background-color: #45a049;
}

.red {
  padding: 10px 20px;
  font-size: 16px;
  border-radius: 5px;
  border: none;
  background-color: #f44336;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s ease-in-out;
}

.red:hover {
  background-color: #c41b18;
}

.form-group {
  margin-top: 10px;
  margin-bottom: 10px;
}

label {
  display: block;
  margin-bottom: 5px;
}

input[type="range"] {
  width: 100%;
}

input[type="number"] {
  width: 50px;
}