body {
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif; 
}
.intro {
    background: url(img/bg.png) center repeat-y;
    background-position-y: -1px;
}
* {
    box-sizing: border-box;
}
h1, h2, h3, h4, h5, h6 {
    margin: 0;  
}
a {
    color: rgb(0, 0, 238);
    
}
a:hover {
   
}
/* Сontainer */
.container {
    width: 100%;
    max-width: 1200px;
    background-color: #fff;
    margin: 0 auto;  
    box-shadow: 0px 0px 10px 0px #000000;
    height: 100%;
}
/* Header */
.header {
    width: 100%;
    position: absolute;
}
.header__logo {
    position: absolute;    
    top: 0;  
    left: 0;
    right: 0;
    z-index: 1000;  
    display:flex;
    justify-content:center;
    padding-top: 6px;
}
/* Section */
.section {
    padding-top: 80px;
}
.section__header {
    width: 100%;
    max-width: 1080px;
    margin: 43px auto;
}
.info {
    margin-left: 20px;
}
.section__info {
    color: #000;
    font-size: 22px;
    font-family: 'Open Sans', sans-serif;
}
.section__link {
    display: flex;
    justify-content: center;
    font-size: 18px;
    padding-bottom: 30px;
    font-weight: 400;
    flex-wrap: wrap;
}
.btn {
    display: inline-block; 
    vertical-align: top;
    color: #551A8B;
    margin: 1px;
    text-decoration: none; 
    transition: color 0.05s linear, background 0.05s linear;
    padding: 6px 13px;
}
.btn:hover { 
    color: #fff;
    background-color: #dd4128;
}

/* MEDIA */
@media (max-width:1440px) {
    .container {
    max-width: 865px;
    }
    .section__link {
    font-size: 17px;
    }
    .section__text {
    font-size: 20px;
    line-height: 33px;
    }
    .section__header {
    max-width: 780px;
    }
    .section__title {
    font-size: 35px;
    }
    .intro {
    background: url(img/bg1440.png) center repeat-y;
    background-position-y: 4px;
    }
    .photo_right {
    height: 255px;
    width: 380px;
    }
    .photo_left {
    height: 255px;
    width: 380px;
    }
    .scrollup{
        right: 20.1%;
    }
    .section__title {
    font-size: 60px;
    }
    .section__info {
    font-size: 21px;
    max-width: 95%;
    }
}
/*------------------------------*/
@media (max-width:1280px) {
    .logo {
    height: 110px;
    }
    .container {
    max-width: 765px;
    }
    .section__link {
    font-size: 17px;
    }
    .section__header {
    max-width: 700px;
    }
    .section__title {
    font-size: 45px;
    }
    .photo_left {
    height: 250px;
    width: 340px;
    }
    .photo_right {
    height: 250px;
    width: 340px;
    }
    .intro {
    background: url(img/bg1280.png) center repeat-y;
    background-position-y: 7px;
    }
    .section__info {
    font-size: 20px;
    max-width: 95%;
    }
}
/*------------------------------*/
@media (max-width:1050px) {  /* 1024px */
    .container {
    max-width: 100%;
    }
    .section__header {
    max-width: 900px;
    }
    .section__link {
    font-size: 20px;
    flex-wrap: wrap;
    max-width: 100%;
    line-height: 1.3;
    }
    .section__info {
    font-size: 24px;
    max-width: 95%;
    }
}
/*------------------------------*/
@media (max-width:900px) {  /* 768px */
    .container {
    box-shadow: 0px 0px 0px 0px #fff;
    }
    .section__header {
    max-width: 720px;
    }
}
/*------------------------------*/
@media (max-width:720px) {
    .container {
    box-shadow: 0px 0px 0px 0px #fff;
    }
    .section__link {
    font-size: 18px;
    flex-wrap: wrap;
    max-width: 720px;
    }
    .section__header {
    max-width: 670px;
    }
}
/*------------------------------*/
@media (max-height: 600px) {
    .header {
    position: absolute;
    }
    .logo {
    height: 97px;
    }
    .header__band {
    height: 60px;
    }
    .section {
    padding-top: 60px;
    }
    .section__header {
    max-width: 95%;
    }
    .section__link {
    font-size: 17px;
    line-height: 1.0;
    max-width: 100%;
    flex-wrap: wrap;
    }
    .section__info {
    font-size: 20px;
    max-width: 95%;
    }
}
/*------------------------------*/
@media (max-width:524px) {  /* 411px 414px */
    .section__header {
    max-width: 93%;
    margin: 20px auto;
    }
    .logo {
    height: 70px;
    }
    .header__logo {
    padding-top: 3px;
    }
    .header__band {
    height: 45px;
    }
    .section__link {
    font-size: 16px;
    padding-bottom: 15px;
    flex-wrap: wrap;
    max-width: 100%;
    line-height: 1.3;
    }
    .btn {
    padding: 5px;
    }
    .header {
    position: fixed;
    }
    .section {
    padding-top: 55px;
    }
    .section__info {
    font-size: 16px;
    text-align: center;
    max-width: 95%;
    }
}
/*------------------------------*/
@media (max-width:375px) {
    .section__header {
    max-width: 93%;
    margin: 20px auto;
    }
    .logo {
    height: 70px;
    }
    .header__logo {
    padding-top: 3px;
    }
    .header__band {
    height: 45px;
    }
    .section__link {
    font-size: 14.5px;
    padding-bottom: 15px;
    flex-wrap: wrap;
    max-width: 100%;
    line-height: 1.3;
    }
    .header {
    position: fixed;
    }
    .section {
    padding-top: 55px;
    }
    .section__info {
    font-size: 16px;
    text-align: center;
    max-width: 95%;
    }
    .btn {
    padding: 4px;
    }
}
/*------------------------------*/
@media (max-width:345px) {  /* 320px */
    .section__link {
    font-size: 13px;
    }
    .header {
    position: fixed;
    }
    .section__info {
    font-size: 14px;
    text-align: center;
    max-width: 95%;
    }
}