body {
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: #1e293b;
  padding: 20px;
  border-radius: 10px;
  width: 300px;
}

input {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
}
.strength-bar {
  width: 100%;
  height: 10px;
  background: #334155;
  border-radius: 5px;
  margin-top: 10px;
}

#strength-level {
  height: 100%;
  width: 0%;
  border-radius: 5px;
  transition: width 0.3s;
}