.overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            justify-content: center;
            align-items: center;
            z-index: 100;
        }

.popup {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        justify-content: center;
        align-items: center;
        z-index: 100;
    }

.popup-form {
    background-color: #fff;
    padding: 10px;
    max-width: 600px;
    margin: auto;
    border-radius: 8px;
    position: relative;
    z-index:102;
    font-size: 15px;
}

.close-btn {
    position: absolute;
    top: 18px;
    right: 10px;
    font-size: 60px;
    font-weight: 900;
    cursor: pointer;
}

label {
    display: block;
    margin-bottom: 8px;
}

input {
    width: 100%;
    padding: 8px;
    margin-bottom: 16px;
    box-sizing: border-box;
}

button {
    padding: 10px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}