h2 {
  text-align: center;
  margin-bottom: 20px;
}

.container {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,.1);
}

label {
  font-weight: bold;
  display: block;
  margin-top: 15px;
}

input[type='text'], input[type='number'], input[type='file'] {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  margin-bottom: 15px;
  border-radius: 4px;
  border: 1px solid #ccc;
  font-size: 16px;
  box-sizing: border-box;
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

.slider-container input[type='range'] {
  flex: 1;
}

.strength {
  font-weight: bold;
  margin-top: 5px;
}

.strength.strong {
  color: green;
}

.strength.verystrong {
  color: darkorange;
}

.strength.extreme {
  color: red;
}

button {
  display: block;
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  font-size: 16px;
  border: none;
  border-radius: 4px;
  background: #007bff;
  color: white;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

@media (max-width: 600px) {
  .slider-container {
    flex-direction: column;
    align-items: stretch;
  }
}