.block-main-banner {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
}


.block-main-banner::before {
  content: "";
  position: absolute;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  z-index: 10;
  background-color: #000000;
  opacity: 0.5;
}
.block-main-banner #mainBannerVideo {
  position: absolute;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}
.block-main-banner .container {
  margin-top: auto;
  position: relative;
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.block-main-banner .container .banner-content {
  margin-bottom: 100px;
  padding: 15px
}
.block-main-banner .container .banner-content .banner-offer .title {
  margin-bottom: 20px;
}
.block-main-banner .container .banner-content .banner-offer .title h1 {
  font-weight: 600;
  font-size: 64px;
  line-height: 100%;
  color: #ffffff;
  margin: 0px;
}
.block-main-banner .container .banner-content .banner-offer .subtitle {
  font-weight: 400;
  line-height: 135%;
  color: #ffffff;
}
.block-main-banner .container .banner-content .banner-offer .btn-main {
  margin-top: 40px;
  
}

@media (max-width: 1200px) {а
  .block-main-banner .container .banner-content .banner-offer .title h1 {
    font-size: 48px;
  }
  .block-main-banner .container .banner-content .banner-offer .subtitle br {
    display: none;
  }
}
@media (max-width: 767px) {
  .block-main-banner .container .banner-content .banner-offer .title h1 {
    font-size: 32px;
  }
  .block-main-banner .container .banner-content .banner-offer .subtitle {
    font-size: 14px;
  }
  .block-main-banner .container .banner-content .banner-offer .btn-main {
    margin-top: 20px;
  }
}
@media (max-width: 480px) {
  .block-main-banner .container .banner-content .banner-offer .title h1 {
    font-size: 24px;
  }
}