.card {
    transition: transform 0.2s;
    border: none;
    box-shadow: 0 0 15px rgba(0,0,0,0.1);
}
.card:hover {
    transform: translateY(-5px);
}
.stats-card {
    border-left: 4px solid;
}
.payment-history {
    max-height: 400px;
    overflow-y: auto;
}
.bg-kiri {
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
}