body {
  font-family: 'Pretendard', sans-serif;
  background-color: #1e1e24;
  color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.container {
  background-color: #2b2b36;
  padding: 24px;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  text-align: center;
  max-width: 680px;
  width: 100%;
}

h1 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: #4da6ff;
}

#canvas-container {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

canvas {
  border-radius: 12px;
}

.controls {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  justify-content: center;
}

input[type="text"] {
  flex: 1;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid #444;
  background-color: #1e1e24;
  color: #fff;
  font-size: 0.9rem;
}

button {
  padding: 10px 16px;
  border-radius: 8px;
  border: none;
  background-color: #007bff;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
}

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

.status-box {
  background-color: #1e1e24;
  padding: 12px;
  border-radius: 8px;
  font-size: 1.1rem;
}

#status-label {
  color: #ffcc00;
}