* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Arial', sans-serif;
}

body {
  background: #f4f4f4;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-container {
  background: #fff;
  border-radius: 12px;
  padding: 40px;
  width: 400px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  text-align: center;
}

h1 {
  margin-bottom: 20px;
  font-size: 1.8rem;
  color: #333;
}

.analysis-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

textarea {
  width: 100%;
  height: 120px;
  padding: 10px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  resize: none;
  outline: none;
}

textarea:focus {
  border-color: #007bff;
}

button {
  padding: 10px;
  background: #007bff;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
}

button:hover {
  background: #0056b3;
}

button:disabled {
  background: #b0c4de;
  cursor: not-allowed;
}

.result-container {
  margin-top: 20px;
  padding: 15px;
  border-radius: 8px;
  color: #fff;
  font-weight: bold;
}

/* Sentiment-based styles */
.result-container.positive {
  background-color: #28a745;  /* Green for positive */
}

.result-container.negative {
  background-color: #dc3545;  /* Red for negative */
}

.result-container.neutral {
  background-color: #007bff;  /* Blue for neutral */
}