body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f9;
  margin: 0;
  padding: 0;
}

.container {
  width: 90%;
  margin: auto;
  max-width: 800px;
  text-align: center;
  padding: 20px;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

h1 {
  color: #333;
}

#inputArea {
  margin: 20px 0;
}

.inputRow {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

input {
  padding: 8px;
  width: 45%;
  font-size: 1rem;
}

button {
  padding: 10px 20px;
  background-color: #007BFF;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  margin: 10px 0;
}

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

#crossword {
  margin-top: 20px;
}

.hide {
  display: none;
}

.square {
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 1px solid #333;
  margin: -1px;
  line-height: 30px;
  text-align: center;
  vertical-align: middle;
  font-size: 1.2rem;
}

.letter input {
  width: 100%;
  height: 100%;
  border: none;
  text-align: center;
  font-size: 1.2rem;
}