@media (max-width: 576px) {
    html {
        font-size: 3.44vw;
    }

    h1 {
        font-size: 4rem;
    }

    .container {
        width: 90%;
    }

    .logo {
        width: 17rem;
        margin-top: 4rem;
        margin-left: auto;
        margin-right: auto;
    }

    .first_screen {
        flex-direction: column;
        margin-top: 2rem;
    }
    
    .first_screen_start-promotion_wrapper {
        top: 26rem;
        left: 3rem;
    }

    .first_screen_form {
        width: 90%;
        order: 3;
        margin-top: 5rem;
    }

    .form_input_header {
        font-size: 1.1rem;
    }

    .form_input {
        font-size: 1.2rem;
        padding: 0.7rem;
    }

    .form_agree {
        font-size: 0.7rem;
    }

    .form_submit-button {
        font-size: 1.2rem;
        padding-top: 0.791rem;
        padding-bottom: 0.791rem;
    }

    .form_submit-button_wrapper.loading {
        height: 3.2rem;
    }

    .form_submit-button_wrapper.loading:before {
        left: calc(50% - (3.2rem/2));
        width: 3.2rem;
        height: 3.2rem;
    }

    .form_have-account {
        font-size: 0.9rem;
        text-align: center;
        margin-top: 1.2rem;
    }

    .form_label.second-step {
        margin-top: 11.857rem;
        margin-bottom: 3.5rem;
    }

    .form_submit-button.second-step {
        margin-bottom: 2.5rem;
    }

    .mobile_how {
        order: 2;
        display: flex;
    }
    
    .first_screen_content {
        order: 1;
    }

    .first_screen_content_image_main {
        left: -14%;
        top: -4rem;
    }

    .first_screen_content_image_bubble {
        display: none;
    }

    .how,
    .participate_button_wrapper,
    .participate_button_agree {
        display: none;
    }

    .example {
        width: 100%;
    }

    .example_single,
    .example_express {
        font-size: 0.8rem;
    }

    .example_description {
        font-size: 0.7rem;
        margin-top: 1rem;
    }

    .example_description_text {
        width: 71%;
    }

    .example_insert {
        right: -2rem;
        bottom: -2rem;
        width: 10rem;
    }

    .rules_header {
        font-size: 1rem;
        font-weight: 500;
        margin-left: 2rem;
    }

    .rules-block__wrapper {
        padding-top: 2rem;
        padding-left: 2rem;
        padding-bottom: 2rem;
        padding-right: 1rem;
        width: 100%;
    }

    .rules-block ul {
        margin-left: 1.8rem;
    }

    .rules-block p {
        font-size: 1rem;
    }

    .rules-block li {
        font-size: 1rem;
    }

    .rules-block h2 {
        font-size: 1.6rem;
    }

    .rules-block h3 {
        font-size: 1.2rem;
    }

    .bg_many_bubbles {
        left: -10rem;
        right: -10rem;
        bottom: 59rem;
    }

    .left_bubble {
        top: 84rem;
        left: -1rem;
        bottom: auto;
        width: 19rem;
    }

    .right_top_bubbles {
        top: 38rem; 
        right: -9rem;
        bottom: auto;
        width: 19rem;
        transform: rotate(48.6deg);
    }

    .right_bottom_bubbles {
        width: 23rem;
    }
}