main, html {
    background-color: #dcb495;
}
#header_block {
    position: absolute;
    margin-bottom: 60%;
}
.header_block {
    margin-top: -1.1vw;
    width: 100%;
    height: 75vw;
    background-position: center;
    display: flex;
    justify-content: center;
    flex-direction: column;
    background: linear-gradient( rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0.85) ), url(../images/back_main_one.jpg);background-repeat: repeat;  background-position: center;
}
.header_title {
    margin-left: 10%;
    color: #ffffff;
    font: bold;
    font-size: 4vw;
    transition: font-size 0.5s ease-in, text-shadow 1s ease-in;
}
.header_title:hover {
    font-size: 4.05vw;
    text-shadow: 0px 0px 20px #ffffff;
}
.header_title_2 {
    margin-left: 10%;
    color: #afafaf;
    font: bold;
    font-size: 2vw;
    transition: font-size 0.5s ease-in, text-shadow 1s ease-in;
}
.header_title_2:hover {
    font-size: 2.05vw;
    text-shadow: 0px 0px 20px #ffffff;
}
.header_buttons {
    margin-top: 5%;
    margin-left: 10%;
    width: 90%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.header_button {
    background-color: #f5c99f;
    width: 20vw;
    height: 5vw;
    color: #000000;
    border-radius: 30px;
    vertical-align: middle;
}
.header_button:hover {
    text-decoration: none;
    color: #000000;
}
#link_to_about {
    margin-left: 40px;
    background-color: #000000;
    color: #ffffff;
    border: 2px solid #ffffff;
}
.header_button_text {
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 1.5vw;
    margin-top: 5%;
}
.body_block {
    background-color: #dcb495;
}
.about_block {
    margin-top: 10%;
    margin-left: 5%;
    width: 90%;
}
.about_title {
    color: #000000;
    font-size: 4vw;
}
.about_info_block {
    margin-top: 50px;
    width: 100%;
    display: inline-flex;
    justify-content: space-between;
}
.about_article_block {
    display: flex;
    flex-direction: column;
    align-content: space-around;
}
.about_article {
    display: inline-flex;
    justify-content: flex-start;
    align-items: center;
}
.article_image {
    width: 10vw;
    height: 10vw;
}
.main_image {
    width: 40vw;
    height: 26vw;
}
.article_text {
    max-width: 70%;
    margin-left: 10px;
    font-size: 1.3vw;
}
.how_work_block {
    margin-top: 20%;
    margin-left: 5%;
    width: 90%;
}
.how_work_title {
    text-align: center;
    color: #000000;
    font-size: 4vw;
}
.how_work_info_block {
    display: inline-flex;
    justify-content: space-evenly;
    margin-top: 100px;
}
.how_work_image {
    width: 10vw;
    height: 10vw;
}
.how_work_info, .how_work_article {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.how_work_article_title {
    text-align: center;
    font-size: 1.5vw;
}
.how_work_article_text {
    text-align: center;
    margin-top: 1vw;
    font-size: 1.1vw;
}
.reg_block {
    margin-top: 20%;
    width: 100%;
    height: 50vw;
}
.reg_content_block {
    margin-top: 100px;
    width: 90%;
    margin-left: 5%;
    display: inline-flex;
    justify-content: space-between;
    flex-wrap: nowrap;
    align-content: center;
}
.reg_title {
    text-align: center;
    color: #000000;
    font-size: 4vw;
}
.reg_content {
    display: flex;
    flex-direction: column;
    align-self: center;
    align-content: space-evenly;
}
.reg_button_group {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.reg_button_title {
    margin-bottom: 10%;
    color: #000000;
    font-size: 2.5vw;
    text-align: left;
}
.reg_button_info {
    margin-top: 8%;
}
.reg_button_group {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.reg_button {
    background-color: #a8886f;
    width: 20vw;
    height: 5vw;
    color: #ffffff;
    border-radius: 30px;
    vertical-align: middle;
}
.reg_button:hover {
    text-decoration: none;
    color: #ffffff;
}
.reg_button_text {
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 1.5vw;
    margin-top: 6%;
}
#link_to_start{
    width: 18vw;
    background-color:#f5d3b8;
}
#link_to_start_text {
    color: #000000;
}
.feedback_block {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 75vw;
    background: linear-gradient( rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0.85) ), url(../images/back_main_two.jpg);background-repeat: repeat;  background-position: center;
}
.feedback {
    width: 50%;
    height: 80%;
    margin-left: 25%;
    margin-right: 25%;
    background-color: #dcb495;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    align-content: space-around;
}
.feedback_title {
    width: 80%;
    margin-bottom: 20%;
    text-align: center;
    color: #000000;
    font-size: 3vw;
}
.feedback_logo {
    margin-bottom: 20%;
    width: 10vw;
    height: 10vw;
}
.feedback_mail, .feedback_mail_link {
    font-size: 1.5vw;
    color: #000000;
    transition: color 0.5s ease-in, border-bottom 0.5s ease-in;
}
.feedback_mail_link:hover {
    color: #694a2d;
    border-bottom: 3px solid #f3c79e;
    text-decoration: none;
}
.scroll_button {
    position: fixed;
    width: 50px;
    height: 50px;
    background-color: #e5e5e5;
    border-radius: 2vw;
    margin-left: 95%;
    margin-top: 45%;
    transition: background-color 0.5s ease-in;
}
.scroll_image {
    margin-top: 5px;
    margin-left: 5px;
    width: 40px;
    height: 40px;
    border-radius: 2vw;
}
.scroll_button:hover {
    background-color: #1c59fe;
}