body { background: #eee; margin: 0; display: flex; justify-content: center; font-family: sans-serif; }
.mobile-container { width: 100%; max-width: 400px; background: white; min-height: 100vh; position: relative; }
.header { background: #12d48c; padding: 20px; color: white; text-align: center; border-radius: 0 0 20px 20px; }
.action-btns button { padding: 8px 20px; border-radius: 20px; border: none; margin: 5px; font-weight: bold; }
.game-info { display: flex; justify-content: space-around; padding: 15px; background: #f9f9f9; }
.betting-area { padding: 10px; }
.color-row, .size-row { display: flex; justify-content: space-between; margin-bottom: 10px; }
.color-row button, .size-row button { flex: 1; margin: 5px; padding: 12px; color: white; border: none; border-radius: 5px; font-weight: bold; }
.btn-green { background: #12d48c; } .btn-violet { background: #9c27b0; } .btn-red { background: #f44336; }
.btn-big { background: #ffa000; } .btn-small { background: #2196f3; }
.number-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; }
.number-grid button { padding: 15px 0; border: 1px solid #ddd; background: #fff; border-radius: 50%; }