* {
    box-sizing: border-box ;
}

:root {
    --white-color: #FFFFFF;
    --black-color: #000000;
    --black-color-alfa: #0000004D;
    --head-grey-color: #00000066;
    --head-border-color: #FFFFFF33;
    --red-color: #FF0000;
    --heading-shadow-color: #00000040;
    --link-shadow-color: #FF00004D;
    --link-white-color: #FFFFFF29;
    --blog-text-color: #6A6A6A;
    --service-footer-background-color: #28272C;
    --service-contact-text-color: #B2B2B2;
    --contact-frame-color: #D1D1D1;
}

body {
    font-family: "Nunito Sans", sans-serif;
}

header {
    height: 100vh;
    background-image: url(../images/Image.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
}

header::before {
    content: "";
    height: 100%;
    width: 100%;
    background-color: var(--black-color-alfa);
    position: absolute;
    top: 0;
    left: 0;
}

.container {
    margin: 0 auto;
    width: 1088px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
}

.menu {
    width: 100%;
    height: 88px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--white-color);
}

.menu_border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 88px;
    border: 2px solid var(--head-border-color);
    background-color: var(--head-grey-color);
}

.logo {
    font-size: 35px;
    font-weight: 800;
    display: flex;
    z-index: 1;
}

.logo_img {
    margin-right: 10px;
    width: 31px;
    height: 35px;
}

.logo span {
    color: var(--red-color);
}

h1, h2, h3,
.link__buttons,
.menu,
.btn_little,
.nav_footer,
.btn_send  {
    text-transform: uppercase;
}


h1 {
    padding-top: 164px;
    padding-bottom: 10px;
    color: var(--white-color);
    text-shadow: var(--heading-shadow-color);
    text-align: center;
    font-size: 90px;
    font-weight: 900;
    z-index: 1;
}

.section_title {
    text-align: center;
    font-size: 35px;
    font-weight: bold;
    color: var(--black-color);
    position: relative;
}

.section_title::before,
.section_title::after {
    content: "";
    width: 50px;
    height: 3px;
    background-color: var(--red-color);
    box-shadow: 0px 1px 6px var(--link-shadow-color);
    border-radius: 8px;
    position: absolute;
    top: 50%;
}

.section_title::before {
    left: -60px;
}

.section_title::after {
    right: -60px;   
}

.header__discription {
    padding-bottom: 54px;
    color: var(--white-color);
    text-align: center;
    line-height: 22px;
    z-index: 1;
}

.nav__list {
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav--button {
    width: 128px;
    height: 88px;
    color: var(--white-color);
    text-decoration: none;
    text-align: center;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.nav--button:hover {
    background-color: var(--head-border-color);
}

.link__buttons {
    display: flex;
    justify-content: center;
    z-index: 1;
}

.btn {
    color: var(--white-color);
    background-color: var(--red-color);
    text-decoration: none;
    font-weight: bold;
    border-radius: 40px;
    box-shadow: 0px 3px 6px var(--link-shadow-color);
}

.btn_big {
    margin: 0 12px;
    padding: 22px 55px;
}

.btn_white {
    color: var(--red-color);
    background-color: var(--white-color);
}

.btn_arrow_down {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background-color: var(--red-color);
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    bottom: -23px;
}

.blog__articles,
.service__articles {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.heading_blog {
    margin-top: 91px;
    margin-bottom: 35px;
}

.heading_service {
    margin-top: 60px;
    margin-bottom: 75px;
    color: var(--white-color);
}

.heading_contact{
    margin-top: 65px;
    margin-bottom: 35px;
}

.section_service_bgc {
    margin-top: 110px;
    padding-bottom: 100px;
    width: 100%;
    background-color: var(--service-footer-background-color);
}

.article {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.blog__articles .article {
    margin: 0 8px;
}

.service__articles .article {
    margin: 0 22px;
}

.article_img {
    margin: 0 auto;
    width: 352px;
    height: 234px; 
}

.article_img_cirle {
    width: 170px;
    height: 170px;
}

 .article_title {
    padding-top: 25px;
    padding-bottom: 15px;
    line-height: 26px;
    font-size: 19px;
    text-align: center;
}

.blog__articles {
    color: var(--blog-text-color);
}

.service__articles {
    color: var(--white-color);
}

.article p {
    font-family: "Open Sans", sans-serif;
    font-size: 14px;
    text-align: center;
    line-height: 19px;
}

.blog__articles p {
    color: var(--blog-text-color);
}

.service__articles p {
    color: var(--service-contact-text-color);
}

.btn_little {
    margin-top: 15px;
    padding: 10px 29px;
    display: inline-block;
}

.contact_form {
    width: 444px;
    display: flex;
    flex-direction: column;
}

.contact_section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact_img {
    margin-right: 16px;
    width: 444px;
    height: 316.5px;
    align-self: flex-start;
}

footer {
    margin-top: 65px;
    background-color: var(--service-footer-background-color);
}

.footer_container {
    margin: 0 auto;
    padding-top: 40px;
    padding-bottom: 39px;
    width: 1088px;
}

footer .logo {
    margin-bottom: 22px;
    color: var(--white-color);
    font-size: 25px;
    font-display: flex;
    align-items: center;
}

.logo_img_mini {
    width: 16.45px;
    height: 18.95px;
    margin-right: 7.55px;
}

.nav_footer {
    width: 40%;
    height: 97px;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
}

.nav_footer a {
    margin: 35px 0;
    font-size: 14px;
    font-weight: bold;
    line-height: 21px;
    text-decoration: none;
    color: var(--white-color);
}

.nav_footer a:hover {
    color: var(--red-color);
}

.footer_menu {
    display: flex;
}

.footer_menu p {
    font-size: 12px;
    line-height: 16px;
    font-weight: 300;
    color: var(--contact-frame-color);
    align-self: flex-end;
    position: relative;
    right: -100px;
}

.contact_form::placeholder {
    color: var(--service-contact-text-color);
}

.input_button {
    margin-bottom: 20px;
    padding: 8px 12px;
    border: 1px solid var(--contact-frame-color);
    border-radius: 8px;
}

.input_button:focus {
    box-shadow: 0px 1px 6px var(--link-shadow-color);
    border: 1px solid var(--red-color);
    border-radius: 8px;
}

.btn_send {
    margin-top: 20px;
    padding: 11px 52px;
    width: 142px;
    text-align: center;
    font-size: 14px;
    font-weight: bold;
    color: var(--red-color);
    background-color: var(--white-color);
    box-shadow: 0px 3px 6px var(--link-shadow-color);
    border: 1px solid var(--red-color);
    border-radius: 40px;
    align-self: flex-end;
}

.rodo {
    margin-left: 10px;
    font-family: "Open Sans", sans-serif;
    font-size: 10px;
    line-height: 14px;
    color: var(--service-contact-text-color);
}

.rodo_container {
    display: flex;
}