.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    margin: 20px;
    overflow: hidden;
}

.card-header {
    background: linear-gradient(45deg, #4e54c8, #8f94fb);
    color: #fff;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    .card-header h5 {
        margin: 0;
        font-weight: 600;
    }

.card-body {
    background-color: #fff;
    padding: 20px;
}

.btn-refresh {
    background-color: rgba(255,255,255,0.8);
    border: none;
    border-radius: 5px;
    padding: 5px 10px;
    font-size: 0.9rem;
    cursor: pointer;
}

    .btn-refresh:hover {
        background-color: #f1f1f1;
    }