section {
  margin: 100px 0;
}

.about {
  margin-top: 200px;
}

.catalog {
  margin: 100px 0;
}

.advantages {
  margin-top: 100px;
}

.contact p {
  font-size: 18px;
  text-align: center;
  margin-bottom: 20px;
}

.features-grid {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.service-grid-el {
  height: 220px;
}

.fullwidth-line-title {
  font-size: 26px;
  max-width: 800px;
  width: 100%;
}

.descriptionSub {
  max-width: 700px;
  width: 100%;
  margin: auto;
  border-top: 2px solid #0071E4;
  border-bottom: 2px solid #0071E4;
  margin-bottom: -100px;
}

.about-ul {
  max-width: 700px;
  margin: auto;
  font-size: 20px;
  line-height: 120%;
  color: #536381;
  list-style-type: decimal;
}

.promo {
  background: #fff url("../img/backgrounds/gpu-bg.png") no-repeat center/cover;
  margin: 0 !important;
}

.main-content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  height: 100%;
  padding: 0;
}
.main-content p {
  max-width: 800px;
}

.bg-image--1 {
  top: -50px;
  right: 0;
}

.bg-image--2 {
  top: -130px;
  right: 100px;
}

.top-header-info {
  background: transparent;
}

.top-header-info-container a {
  color: #007aff;
}
.top-header-info-container a:before {
  background: url("../img/icons/phone-blue.svg") no-repeat center/contain;
}
.top-header-info-container a:nth-child(2):before {
  background: url("../img/icons/mail-blue.svg") no-repeat center/contain;
}
.top-header-info-container a:nth-child(3):before {
  background: url("../img/icons/telegram-blue.svg") no-repeat center/contain;
}

.promo p {
  color: #007aff;
}

h1 {
  color: #007aff;
}

.buttons .btn:nth-child(1) {
  background: #007aff;
  color: #fff;
  border: 1px solid #007aff;
  -webkit-transition: 0.3s ease-in-out;
  transition: 0.3s ease-in-out;
}
.buttons .btn:nth-child(1):hover {
  background: #fff;
  color: #007aff;
}

.item-image {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.item-buttons .btn:nth-child(1) {
  max-width: 100%;
  background: #007aff;
  color: #fff;
  border-color: #007aff;
}
.item-buttons .btn:nth-child(1):hover {
  background: #fff;
  border-color: #007aff;
  color: #007aff;
}

.advantages {
  margin-top: 200px;
}

.advantages-grid {
  margin-top: 60px;
}

.advantages-grid-el {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  min-height: 347px;
  height: 100%;
}
.advantages-grid-el .title {
  margin: 0 0 16px 0;
}
.advantages-grid-el:hover {
  background: #fff;
}
.advantages-grid-el:hover path {
  fill: none;
}
.advantages-grid-el:hover .title {
  color: #000;
}
.advantages-grid-el:hover .description {
  color: #536381;
}

.adv-btn {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  text-decoration: none;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  width: 100%;
  height: 50px;
  background: #0071E4;
  border-radius: 8px;
  margin-top: 32px;
  -webkit-transition: 0.3s ease-in-out;
  transition: 0.3s ease-in-out;
  border: 1px solid #0071E4;
}
.adv-btn:hover {
  background: #fff;
  color: #0071E4;
}

@media screen and (max-width: 1650px) {
  .service-grid-el {
    height: 180px;
  }
  .service-grid-el .btn {
    max-width: 300px;
  }
  .bg-image--1 {
    right: -500px;
    top: 50px;
  }
  .bg-image--1 img {
    max-width: 70%;
    width: 100%;
  }
  .bg-image--2 {
    top: -50px;
    right: -500px;
  }
  .promo {
    height: 850px;
  }
}
@media screen and (max-width: 1280px) {
  .service-grid-el {
    height: 160px;
  }
  .buttons {
    max-width: 400px;
    margin: auto;
  }
}
@media screen and (max-width: 768px) {
  .fullwidth-line-title {
    max-width: 80%;
    font-size: 16px;
  }
  .bg-image--1 {
    right: -800px;
    top: -130px;
  }
  .bg-image--1 img {
    max-width: 40%;
    width: 100%;
  }
  .bg-image--2 {
    top: 0;
    right: 0;
  }
  .catalog-grid {
    border: none !important;
    border-radius: 0 !important;
  }
  .item {
    border: 1px solid #007aff !important;
    border-radius: 0px !important;
  }
  .about .main-p {
    font-size: 16px;
  }
  .features-grid {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
  .descriptionSub .main-p {
    font-size: 16px;
  }
  .promo {
    height: 450px;
  }
  .descriptionSub {
    margin-top: 50px;
    margin-bottom: 0;
  }
  .descriptionSub .main-p {
    max-width: 90%;
    margin: 20px auto;
  }
  h1 {
    padding-top: 100px;
  }
  .about {
    margin: 50px 0;
  }
  .catalog {
    margin: 50px 0;
  }
}