* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: linear-gradient(135deg, #ff9a9e, #fecfef); min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.game { background: #fff; padding: 30px; border-radius: 20px; text-align: center; }
.game h1 { color: #ff6b6b; margin-bottom: 10px; }
.grid { display: grid; grid-template-columns: repeat(4, 80px); gap: 10px; margin-top: 20px; }
.card { width: 80px; height: 80px; background: #ff6b6b; border-radius: 10px; cursor: pointer; font-size: 40px; display: flex; align-items: center; justify-content: center; }
.card.flipped { background: #fff; border: 3px solid #ff6b6b; }
.card.matched { background: #4ecdc4; border: 3px solid #4ecdc4; }