body {
    background: #f5f7fb;
    font-family: Arial, sans-serif;
}

.card-box {
    border-radius: 16px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    border: none;
}

.stat-box {
    padding: 20px;
    border-radius: 16px;
    color: #fff;
}