html {
    font-size: 10px; 
}

h2 {
    display: block;
    font-size: 30px;
    margin-block-start: 0.83em;
    margin-block-end: 0.83em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}


#stage_title {
	 
	 
	font-size: 35px;
    color: #2770b1;
    text-transform: uppercase;
	
}

body {
    line-height: 1.5;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.6rem;
    color: #252525;
    margin-right: auto !important;
    margin-left: auto !important; 
    margin: 0 auto;
}
  
* {
    box-sizing: border-box;
    -webkit-backface-visibility: hidden;
            backface-visibility: hidden;
    outline-width: 0px; 
}

a {
    text-decoration: none;
    color: #2770b1;
    cursor: pointer;
}

.container{
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 0;
}

@media(max-width:768px){
    .container{
        width: 100%;
        max-width: 1140px;
        margin: 0 auto;
        padding: 0 10px;
    }
}
/* Header */

.header{
    width: 100%;
    height: 100px;

    
    background: #fff;
    position: static;
    top: 0;
    left: 0;
    z-index: 1000;
}

.header__inner{
    display: flex;
    justify-content: space-between;
    padding: 35px 0;
    align-items: center;

    
} 

/* Navigation */

.nav{
    display: flex;
    font-weight: 700;
    font-size: 16px;
    text-transform: uppercase;
}

.nav__link{
    margin-left: 50px;
    color: #2770b1;
    text-decoration: none;
    opacity: .75;

    transition: opacity .1s linerar;
}

.nav__link:first-child{
        margin-left: 0;
    }
.nav__link:hover{
    opacity: 1;
}

.header_burger{
    display: none;
}

@media(max-width:768px){
    .header_burger{
        display: block;
        position: relative;
        width: 3rem;
        height: 2rem;
        position: relative;
        z-index: 3;
    }

    .header_burger span{
        position: absolute;
        background-color: #2770b1;
        left: 0;
        width: 100%;
        height: 2px;
        top: 9px;
        transition: all .3s ease 0s;
    }

    .header_burger::before,
    .header_burger::after{
        content: '';
        background-color: #2770b1;
        position: absolute;
        width: 100%;
        height: 2px;
        left: 0;
        transition: all .3s ease 0s;
    }

    .header_burger::before{
        top: 0;
    }
    .header_burger::after{
        bottom: 0;
    }

    .header_logo{
        z-index: 3;

    }
    .nav{
        position: fixed;
        top: -100%;
        left: 0;
        width: 100%;height: 100%;
        background-color: #fff;
        padding: 15rem 0 0 2rem;
        flex-direction: column;
    }

    .nav.active{
        top: 0;
        transition: all .3s ease 0s;
    }

    .nav__link{
        margin-left: 0;
        margin-bottom: 1rem;
    }

    .header_burger.active::before{
        transform: rotate(45deg);
        top: 9px;
    } 
    .header_burger.active::after{
        transform: rotate(-45deg);
        bottom: 9px;
    }  
    
    .header_burger.active span{
        transform: scale(0);
    }

}

/* Stage */

.stage{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin: 15rem 0 5rem 0;
}

.stage_content{
    align-items: center;
    line-height: 1;
    
}
.stage_title, .stage_subtitle{
    font-size: 75px; 
    color: #2770b1; 
    text-transform: uppercase;
}
.stage_subtitle{
    font-weight: 900;
}

.stage_img img{
    width: 380px;
}

@media(max-width:768px){
    .stage{
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        margin: 6rem 0 5rem 0;
    }
    
    .stage_content{
        align-items: center;
        line-height: 1;
        
    }
    .stage_title, .stage_subtitle{
        font-size: 35px;
        color: #2770b1;
        text-transform: uppercase;
    }
    .stage_subtitle{
        font-weight: 900;
    }
    
    .stage_description{
        margin-top: 2rem;
        font-size: 15px;
    }
    
    .stage_img img{
        display: none;
    }
}

.advantages_wrapper{
    margin: 0 auto;

}
.advantages{
    font-size: 53px;
    color: #fff ;
    padding: 1rem 0 1rem 0;
    /* background-color: #2770b1; */
    background: linear-gradient(to right, #2770b1 50%, #fff 50%);
}

.advantages_items{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding-top: 5rem;

    
}

.advantages_item{
    display: flex;
    flex-direction: row;
    width: 33.33333%;
    margin-bottom: 5rem;
}

.advantages_item_text{
    margin-left: 2rem;
    font-weight: bold;
}

@media(max-width:768px){
    .advantages{
        font-size: 45px;
        color: #fff ;
        padding: 1rem 0 1rem 0;
        background: linear-gradient(to right, #2770b1 100%, #fff 0%);
    }
    
    .advantages_items{
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        padding-top: 5rem;
      
    }
    
    .advantages_item{
        display: flex;
        flex-direction: row;
        width: 100%;
        margin-bottom: 5rem;
    }
    
    .advantages_item_text{
        margin-left: 2rem;
    }
}

.steps{
    text-align: center;
    margin-bottom: 5rem;
}

.steps_items{
    display: flex;
    justify-content: space-around;
    margin-bottom: 5rem;
}

.steps_title{
    font-size: 45px;
  /*  font-weight: 700; */
    color: #2770b1;
    text-align: center;
    margin-bottom: 3rem;
}

.steps_item{
    text-align: center;
}

.steps_item-number{
    font-weight: 200;
    color: #2770b1;
    font-size: 29px;
}

.steps_item-text{
    font-size: 30px;
}

.steps_btn{
    width: 28rem;
    height: 4rem;
    background: #2770b1;
    border: none;
    text-transform: uppercase;
    color: #fff;
}

@media(max-width:768px){
    .steps{
        text-align: center;
        margin-bottom: 5rem;
    }
    
    .steps_items{
        display: flex;
        flex-wrap: wrap;
        margin-bottom: 5rem;
    }
    
    .steps_title{
        font-size: 45px;
      /*  font-weight: 700;  */
        color: #2770b1;
        text-align: center;
        margin-bottom: 3rem;
    }
    
    .steps_item{
        width: 100%;
        text-align: center;
        margin-bottom: 2rem;
    }
    
    .steps_item-number{
        font-weight: 200;
        color: #2770b1;
        font-size: 29px;
    }
    
    .steps_item-text{
        font-size: 30px;
    }
    
    .steps_btn{
        width: 28rem;
        height: 4rem;
        background: #2770b1;
        border: none;
        text-transform: uppercase;
        color: #fff;
    }
}

.about{
    margin-bottom: 8rem;
}

.about_title{
    font-size: 45px;
    font-weight: 700;
    margin-bottom: 5rem;
    color: #2770b1;
}

.about_text{
    font-size: 18px;
}

@media(max-width:768px){
    .about{
        margin-bottom: 8rem;
    }
    
    .about_title{
        font-size: 48px;
        font-weight: 700;
        margin-bottom: 5rem;
        color: #2770b1;
    }
    
    .about_text{
        font-size: 18px;
    }
}

.usage_title{
    text-align: center;
 /*   font-weight: 700; */
    font-size: 48px;
    color: #2770b1;
    margin-bottom: 50px;
}

.usage_items{
    display: flex;
    flex-wrap: wrap;

}

.usage_item{
    display: flex;
    flex-direction: row;
    width: 33.3333%;
    margin-bottom: 90px;
}

.usage_text{
    margin-left: 20px;
    font-weight: bold;
}

@media(max-width:768px){
    .usage_title{
        text-transform: uppercase;
        text-align: center;
   /*     font-weight: 700; */
        font-size: 45px;
        color: #2770b1;
        margin-bottom: 50px;
    }
    
    .usage_items{
        display: flex;
        flex-wrap: wrap;
    }
    
    .usage_item{
        display: flex;
        flex-direction: row;
        width: 100%;
        margin-bottom: 90px;
    }
    
    .usage_text{
        margin-left: 20px;
    }
}

.catalog{
    padding-top: 10rem;
}

.catalog_title{
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    background-color: #2770b1;
    margin-right: 10%;
}
.catalog_img img{
    width: auto;   
}


.materials{
    background-image: url("../img/materials_bg.png");
    background-repeat: repeat;  
}

.materials_wrapper{
    display: flex;
    justify-content: space-between;
}


.materials_text{
    padding: 10rem 0 3rem 0;

    
}

.materials_title{
    font-size: 48px;
   /* font-weight: 700; */
    margin-bottom: 3rem;
    margin-left: 3rem;
    color: #2770b1;
}

.materials_subtitle{
    font-size: 18px;
    margin-bottom: 2rem;
    font-weight: bold;
    padding: 2rem 2rem 2rem 2rem;
    background: rgba(255,255,255, 0.5)
}

.materials_img{
    position: absolute;
    right: 10%;
}

@media(max-width:768px){
    .materials{
        background-image: url("../img/materials_bg.png");
        background-repeat: repeat;  
    }
    
    .materials_wrapper{
        display: flex;
        justify-content: space-between;
    }
    
    
    .materials_text{
        padding: 10rem 0 3rem 0; 
    }
    
    .materials_title{
        font-size: 45px;
     /*   font-weight: 700;  */
        margin-bottom: 3rem;
    
        color: #2770b1;
    }
    
    .materials_subtitle{
        font-size: 15px;
        margin-bottom: 2rem;
    
        padding: 2rem 15rem 2rem 2rem;
        background: rgba(255,255,255, 0.5)
    }
    
    .materials_img{
       display: none;
    }
}

.footer{
 /*   background: #2770b1; */
    margin-top: 20px;
    padding-bottom: 20px;
}

.footer_content{
    padding-top: 5rem;
    color: #fff;
}

.footer_title{
    font-size: 35px;
    font-weight: 700;
    text-align: center;
    color: #2770b1;
}

.footer_subtitle{
    font-size: 14px;
    text-align: center;
    color: #000000;
}

.footer_order{
    margin-top: 3rem;
    margin-bottom: 9rem;
    display: flex;
    justify-content: center;
   
}

.oreder_control{
    text-transform: uppercase;
    width: 28rem;
    height: 4rem;
    border: 1px solid #2770b1;
}

.order_button{
    text-transform: uppercase;
    width: 28rem;
    height: 4rem;
    background: #ffffff;
    border: 1px solid #2770b1;
    color: #2770b1;
}

.footer_copyriting{
    color: #fff;
    text-align: center;
}

@media(max-width:768px){
    .footer{
        background: #ffffff;
        margin-top: 20rem;
        
    }
    
    .footer_content{
        padding-top: 5rem;
        color: #fff;
        
    }
    
    .footer_title{
        font-size: 35px;
        font-weight: 700;
        text-align: center;
    }
    
    .footer_subtitle{
        font-size: 14px;
        text-align: center;
    }
    
    .footer_order{
        margin-top: 3rem;
        margin-bottom: 9rem;
        display: flex;
        flex-direction: column;
        text-align: center;
    }
    
    .oreder_control{
        width: 28rem;
        height: 4rem;
    }
    
    .order_button{
        width: 28rem;
        height: 4rem;
        background: #ffffff;
        border: none;
        text-transform: uppercase;
        border: 5px solid #2770b1;
    }
    
    .footer_copyriting{
        color: #fff;
        text-align: center;
    }
}


.footer__container {
    display: flex;
    justify-content: space-between; }
    @media (max-width: 768px) {
      .footer__container {
        flex-wrap: wrap; } }
  
  @media (max-width: 768px) {
    .footer__mark {
      margin-bottom: 1rem; } }
  
  .footer__logo {
    display: block;
    width: 20rem;
    margin-bottom: 1rem; }
    .footer__logo:hover .footer__logo-img {
      opacity: .7; }
  
  .footer__logo-img {
    transition-duration: .3s; }
  
  .footer__copyright {
    color: #fff; }
    .footer__copyright a {
      color: #fff; }
      .footer__copyright a:hover {
        text-decoration: underline; }
  
  .footer__contact {
    background-repeat: no-repeat;
    background-position-y: 50%;
    font-weight: 500;
    color: #ffbb42;
    padding-left: 3.4rem;
    margin-bottom: 1.5rem; }
    .footer__contact:last-child {
      margin-bottom: 0rem; }
    /* .footer__contact.is-email {
      background-image: url("../img/email.png");
    }
    .footer__contact.is-phone {
      background-image: url("../img/tel.png"); }
    .footer__contact.is-address {
      background-image: url("../img/local.png"); } */