body {
  font-family: Arial, sans-serif;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  background-color: #f5f5f5;
}

.container {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

label {
  display: block;
  margin-top: 15px;
  margin-bottom: 5px;
  font-weight: bold;
}

input, select, button {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

button {
  background-color: #007bff;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background-color: #0056b3;
}

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

#copyJsonBtn {
  width: auto;
  margin-top: 10px;
}

.error {
  color: #dc3545;
  font-size: 14px;
  margin-bottom: 10px;
}

#addressDisplay {
  margin-top: 20px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 4px;
}

#addressTable {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 15px;
}

#addressTable th, #addressTable td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: left;
}

#addressTable th {
  background-color: #f2f2f2;
  font-weight: bold;
}

#copyExcelBtn {
  width: auto;
  margin-top: 10px;
}