html {
        scroll-behavior: smooth;
    }

    body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
        background-color: #ffffff;
        color: #000;
    }

    .pricing-section {
        padding: 80px 20px;
        max-width: 1200px;
        margin: auto;
    }

    .pricing-section h1 {
        font-size: 36px;
        color: #183b2f;
        text-align: left;
        margin-left: 20px;
        margin-bottom: 10px;
    }

    .btn-contact {
        display: inline-block;
        margin-left: 20px;
        margin-bottom: 40px;
        padding: 12px 28px;
        background-color: #183b2f;
        color: #fff;
        font-weight: bold;
        text-decoration: none;
        border-radius: 30px;
        transition: background 0.3s ease;
        max-width: 250px;
        text-align: center;
    }

    .btn-contact:hover {
        background-color: #125c42;
    }

    .pricing-cards {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }

    .card {
        background: #f0f0f0;
        border-radius: 12px;
        padding: 30px 20px;
        width: 300px;
        max-width: 90vw;
        text-align: left;
        color: #333;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        transition: transform 0.2s ease, box-shadow 0.3s ease;
        cursor: pointer;
    }

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 18px rgba(0,0,0,0.15);
    }

    .card.highlight {
        background: #f9b233;
        color: #000;
    }

    .card h2 {
        font-size: 22px;
        margin-bottom: 10px;
    }

    .card .price {
        font-size: 30px;
        font-weight: bold;
        margin-bottom: 5px;
        color: #e67e22;
        transition: color 0.3s ease;
    }

    .card:hover .price,
    .card:active .price {
        color: #d35400;
    }

    .card .unit {
        font-size: 14px;
        color: #666;
    }

    .card ul {
        list-style: none;
        padding: 0;
        margin-top: 20px;
    }

    .card ul li {
        margin: 8px 0;
        display: flex;
        align-items: center;
    }

    .card ul li i {
        margin-right: 10px;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .pricing-section h1 {
            text-align: center;
            margin-left: 0;
        }

        .btn-contact {
            display: block;
            margin: 20px auto 40px;
            width: 100%;
            max-width: 250px;
        }

        .card {
            width: 100%;
            max-width: 320px;
            margin: 0 auto;
        }
    }