body {
  margin: 0;
  padding: 0;
  font-family: Georgia, "Times New Roman", serif;
  background-color: #fafafa;
  color: #2b2b2b;
  line-height: 1.6;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.subtitle {
  font-size: 1.1rem;
  color: #555;
}

.intro p {
  margin-top: 1rem;
  font-size: 1rem;
}

.how-to {
  margin-top: 2rem;
}

.how-to h2 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.how-to ol {
  padding-left: 1.2rem;
}

.prompt-block {
  margin-top: 2rem;
  background-color: #ffffff;
  padding: 1.5rem;
  border-left: 4px solid #d6bfa6;
}

/* ✅ NEW: Copy button styling */
.copy-btn {
  background-color: #e8e1d6;
  border: none;
  padding: 0.5rem 0.8rem;
  font-size: 0.9rem;
  font-family: Georgia, "Times New Roman", serif;
  cursor: pointer;
  margin-bottom: 0.8rem;
}

.copy-btn:hover {
  background-color: #d6bfa6;
}

.copy-btn:disabled {
  opacity: 0.7;
  cursor: default;
}

.prompt-block pre {
  white-space: pre-wrap;
  font-family: "Courier New", monospace;
  font-size: 0.9rem;
  margin: 0;
}

footer {
  margin-top: 3rem;
  font-size: 0.9rem;
  color: #666;
}