* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: #f5f5f5; padding: 0 15px; }
header { background: #2c3e50; color: white; padding: 20px; text-align: center; position: relative; margin: 0 -15px; }
#langBtn { position: absolute; right: 20px; top: 20px; padding: 4px 8px; cursor: pointer; border: none; border-radius: 4px; font-size: 12px; }
main { max-width: 1200px; margin: 40px auto; padding: 0 20px; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.game-card { background: white; padding: 30px; border-radius: 8px; cursor: pointer; transition: transform 0.2s; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.game-card:hover { transform: translateY(-5px); box-shadow: 0 4px 8px rgba(0,0,0,0.2); }
.game-card h2 { margin-bottom: 10px; color: #2c3e50; }
canvas { border: 2px solid #333; display: block; margin: 20px auto; max-width: 100%; height: auto; }
.controls { text-align: center; margin: 20px; }
button { padding: 10px 20px; margin: 5px; cursor: pointer; background: #3498db; color: white; border: none; border-radius: 4px; font-size: 16px; }
button:hover { background: #2980b9; }
#leaderboard { max-width: 600px; margin: 20px auto; background: white; padding: 20px; border-radius: 8px; }
.record { padding: 10px; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; }
input[type="file"] { margin: 20px auto; display: block; }