#cupom-container {
        position: fixed;
        top: 50%;
        right: 0;
        transform: translateY(-50%);
        z-index: 999;
    }

    #cupom-form-container {
        position: relative;
    }

    #cupom-form {
        position: absolute;
        top: 0;
        right: 100%;
        width: 300px;
        background-color: #f9f9f9;
        padding: 20px;
        border: 2px solid #ccc;
        border-radius: 10px;
        box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
        transition: transform 0.3s ease;
        transform: translateX(100%);
    }

    #cupom-tab {
        position: absolute;
        top: 0;
        right: 0;
        background-color: #007bff;
        color: #fff;
        padding: 10px 15px;
        border-top-left-radius: 5px;
        border-bottom-left-radius: 5px;
        cursor: pointer;
        box-shadow: -3px 0 5px rgba(0,0,0,0.2);
        transition: transform 0.3s ease;
        transform: translateY(-50%);
    }

    #cupom-tab.open + #cupom-form {
        transform: translateX(0%);
    }

    #cupom-form h2 {
        font-size: 24px;
        margin-bottom: 20px;
        color: #333;
        text-align: center;
    }

    #cupom-form label {
        font-weight: bold;
        display: block;
        margin-bottom: 5px;
        color: #333;
    }

    #cupom-form input[type="text"] {
        width: 100%;
        padding: 10px;
        margin-bottom: 20px;
        border: 1px solid #ccc;
        border-radius: 5px;
    }

    #cupom-form button {
        width: 100%;
        padding: 10px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        background-color: #007bff;
        color: #fff;
        font-size: 16px;
        text-transform: uppercase;
    }

    #cupom-form button:hover {
        background-color: #0056b3;
    }

    .arrow {
        display: inline-block;
        width: 0;
        height: 0;
        border-style: solid;
        border-width: 6px 6px 0 6px;
        border-color: #fff transparent transparent transparent;
        margin-left: 5px;
        transition: transform 0.3s ease;
    }

    .arrow.up {
        transform: rotate(-90deg);
    }