/* General Body Styles */
body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #667eea, #764ba2);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.main-container {
  width: 100%;
  max-width: 400px;
  padding: 20px;
  box-sizing: border-box;
}

/* Game Screen */
.game-container, .result-screen {
  background: white;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

h1 {
  margin-bottom: 20px;
  color: #333;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.cell {
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: #e0e0e0;
  font-size: 2.5rem;
  font-weight: bold;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.3s ease;
}

.cell:hover {
  background-color: #d0d0d0;
}

#status {
  margin-top: 15px;
  font-size: 1.1rem;
  color: #444;
}

button {
  margin-top: 15px;
  padding: 10px 20px;
  font-size: 1rem;
  border: none;
  background-color: #007bff;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

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

/* Result Screen */
.result-screen {
  display: none;
}

.result-screen h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: #333;
}