body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  width: 300px;
  text-align: center;
}

h1 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

input {
  width: 100%;
  padding: 0.5rem;
  font-size: 1rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.meter {
  width: 100%;
  height: 10px;
  background: #ddd;
  border-radius: 5px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

#strength-bar {
  height: 100%;
  width: 0%;
  background: red;
  transition: width 0.3s ease;
}

#feedback {
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.toggle {
  margin-top: 1rem;
  font-size: 0.9rem;
}

.toggle input {
  margin-right: 0.5rem;
}