body {
    background-color: #f5f6fa;
}
.card {
    border: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.table-responsive {
    background: #fff;
    border-radius: 8px;
}
.stat-card {
    border-radius: 12px;
    color: #fff;
    padding: 1.2rem;
}
.badge-div-I { background-color: #27ae60; }
.badge-div-II { background-color: #2980b9; }
.badge-div-III { background-color: #f39c12; }
.badge-div-IV { background-color: #e67e22; }
.badge-div-0 { background-color: #c0392b; }