body {
  font-family: 'Segoe UI', sans-serif;
  background: #eef2f5;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 80%;
  margin: 50px auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

h1, h2 {
  text-align: center;
  color: #333;
}

textarea {
  width: 100%;
  height: 120px;
  font-size: 16px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

button {
  width: 100%;
  padding: 20px;
  background: #0077cc;
  color: white;
  border: none;
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #005fa3;
}

#loading {
  text-align: center;
  margin-top: 15px;
  font-size: 16px;
  color: #555;
}

.hidden {
  display: none;
}

#response {
  margin-top: 20px;
  padding: 15px;
  background: #f9f9f9;
  border-left: 4px solid #0077cc;
  border-radius: 6px;
  font-size: 16px;
  color: #222;
}

#history {
  margin-top: 20px;
  list-style: none;
  padding-left: 0;
}

#history li {
  background: #f0f0f0;
  margin-bottom: 8px;
  padding: 10px;
  border-radius: 4px;
  font-size: 14px;
}

.spinner {
  margin: 20px auto;
  width: 40px;
  height: 40px;
  border: 4px solid #ccc;
  border-top: 4px solid #0077cc;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.accordion-item {
  background: #f0f0f0;
  margin-bottom: 10px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid #ccc;
}

.accordion-header {
  padding: 12px;
  cursor: pointer;
  font-weight: bold;
  background: #e0e0e0;
}

.accordion-header:hover {
  background: #d0d0d0;
}

.accordion-content {
  padding: 12px;
  display: none;
  border-top: 1px solid #ccc;
  font-size: 14px;
  color: #333;
}

.actions {
  text-align: center;
  margin-top: 20px;
}

.actions button {
  padding: 10px 20px;
  background: #28a745;
  color: white;
  border: none;
  font-size: 14px;
  border-radius: 6px;
  cursor: pointer;
  margin: 5px;
}

.actions button:hover {
  background: #218838;
}

.copy-btn {
  float: right;
  background: #ffc107;
  color: black;
  border: none;
  padding: 5px 10px;
  font-size: 12px;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 5px;
}

.copy-btn:hover {
  background: #e0a800;
}