/* Ball styling for each digit */
.ball {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
    text-shadow: 0 0 3px rgba(0,0,0,0.5);
    box-shadow: inset -5px -5px 10px rgba(0,0,0,0.3), 
                2px 2px 5px rgba(0,0,0,0.2);
    position: relative;
}

/* Different colors for each digit */
.ball-0 { background: #e74c3c; } /* Red */
.ball-1 { background: #3498db; } /* Blue */
.ball-2 { background: #2ecc71; } /* Green */
.ball-3 { background: #f39c12; } /* Orange */
.ball-4 { background: #9b59b6; } /* Purple */
.ball-5 { background: #1abc9c; } /* Turquoise */
.ball-6 { background: #d35400; } /* Pumpkin */
.ball-7 { background: #34495e; } /* Dark blue */
.ball-8 { background: #c0392b; } /* Dark red */
.ball-9 { background: #16a085; } /* Green sea */

/* Ball shine effect */
.ball::after {
    content: '';
    position: absolute;
    top: 10%;
    left: 10%;
    width: 20%;
    height: 20%;
    background: rgba(255,255,255,0.4);
    border-radius: 50%;
}

/* Responsive ball sizing */
@media (max-width: 768px) {
    .ball {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .ball {
        width: 30px;
        height: 30px;
        font-size: 0.8rem;
        margin: 0 2px !important;
    }
}

.ball-sm {
    width: 30px;
    height: 30px;
    font-size: 0.8rem;
    margin: 0 2px !important;
}

/* Even smaller on mobile */
@media (max-width: 576px) {
    .ball-sm {
        width: 20px;
        height: 20px;
        font-size: 0.6rem;
        margin: 0 1px !important;
    }
}