.tariff-card {
    transition: transform 0.3s;
    border: 2px solid #e9ecef;
}

.tariff-card:hover {
    transform: translateY(-5px);
    border-color: #007bff;
}

.tariff-card.popular {
    border-color: #007bff;
    position: relative;
}

.popular-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: #007bff;
    color: white;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
}