body { margin: 0; background: #222; display: flex; flex-direction: column; align-items: center; }
#gameCanvas { border: 2px solid #555; background: #87CEEB; }
#ui-layer { color: white; padding: 10px; font-family: sans-serif; }
button { padding: 10px; cursor: pointer; }

#gameCanvas {
width: 100%;       /* Canvas memenuhi lebar layar */
max-width: 400px;  /* Tapi tidak terlalu lebar */
height: auto;      /* Rasio tetap terjaga */
touch-action: none; /* Mencegah scrolling browser saat menyentuh canvas */
}