body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f7f7f7;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  width: 90%;
  max-width: 400px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-align: center;
}

input[type="password"] {
  width: 100%;
  padding: 0.5rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

#strength-bar {
  width: 100%;
  height: 10px;
  background: #eee;
  border-radius: 5px;
  margin: 0.5rem 0;
}

#strength-fill {
  height: 100%;
  width: 0%;
  background: red;
  border-radius: 5px;
  transition: width 0.3s ease, background 0.3s ease;
}

#strength-text {
  margin-top: 0.5rem;
  font-weight: bold;
}