body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f5f7fb;
    color: #111827;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 36px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.price {
    font-size: 34px;
    font-weight: 700;
    margin: 12px 0;
}

.price-period {
    font-size: 16px;
}

.btn {
    padding: 12px 18px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-light {
    background: white;
    color: #111827;
    border: 1px solid #d1d5db;
}

.muted {
    color: #6b7280;
}

@media (max-width: 900px) {
    .grid {
        grid-template-columns: 1fr;
    }
}