.mega-ball {
    width: 55px; height: 55px;
    background: #28a745; color: white;
    border-radius: 50%; display: inline-flex;
    align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.3rem;
    margin: 8px; box-shadow: 0 4px 10px rgba(40, 167, 69, 0.3);
    border: 2px solid #1e7e34;
}
.bg-mega-light { 
    background-color: #f0fff4; 
    border: 2px dashed #28a745; 
    border-radius: 15px;
}
.prob-card {
    background: #ffffff;
    border-radius: 12px;
    transition: all 0.3s ease;
}
.stat-box {
    padding: 15px;
    border-radius: 10px;
    background: #f8f9fa;
    border-bottom: 3px solid #28a745;
}