.header-bot-box ul a.active, .header-bot-box ul a:hover {
    color: #386383;
}

.header-bot-box ul a:after {
    content: '';
    width: 100%;
    height: 1px;
    background: #386383;
    opacity: 0;
    position: absolute;
    left: 0;
    bottom: 0;
    -webkit-transition: all .2s;
    -o-transition: all .2s;
    transition: all .2s;
}

.header-bot-box ul a.active:after, .header-bot-box ul a:hover:after {
    opacity: 1;
}

.main-title > span{
  display: block;
  font-size: 40px;
  font-weight: 500;
  font-style: normal;
  line-height: 1.7;
  letter-spacing: -0.82px;
  color: #28efa0;
  margin-bottom: 35px;
}
.main-text{
  padding-top: 20px;
}

.b-main {
    padding-top: 184px;
    padding-bottom: 112px;
}
.main-title {
    font-size: 60px;
    font-weight: 500;
    line-height: 1.13;
    letter-spacing: -1.63px;
}

@media screen and (max-width: 1365px){
  .main-title {
    font-size: 50px;
  }
  .main-title > span {
    font-size: 26px;
    margin-bottom: 25px;
  }
  .main-text {
    padding-top: 10px;
  }
  .small-text {
    font-size: 18px;
  }
}

@media screen and (max-width: 767px){
  .main-title {
    margin-bottom: 35px;
    font-size: 36px;
  }
  .small-text {
    font-size: 16px;
    line-height: 2;
  }
  .b-main{
    min-height: 100vh;
  }

}

.main_button_for_demo {
  padding-top: 30px;
}

/* form contact */

.contact-form button {
  width: 100%;
}
@media screen and (max-width: 1365px) {
  .contact-form button {
      width: 100%;
  }
}

.contact-form .form-group-btn {
  max-width: 369px;
}