.jumbo1 {
  padding-left: 120px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 60vh;
  color: #fff;
  background-image: linear-gradient(0deg, #00000036, #0000002b),
    url(../assets/opsis-hero-img.webp);
  background-size: cover;
}
h1 {
  font-size: 5rem;
  max-width: 40%;
  font-weight: bold;
}
p {
  max-width: 50%;
  font-size: 1.5rem;
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}
.product {
  padding-left: 120px;
  display: flex;
  flex-wrap: wrap;
}
.products h3 {
  font-size: 4rem;
  font-weight: bold;
  padding-top: 60px;
  padding-left: 120px;
  padding-bottom: 80px;
}
.flex-item {
  flex: 1 1 calc(33.333% - 20px);
}
.our-tech-h3 h3 {
  font-size: 4rem;
  font-weight: bold;
  padding-top: 60px;
  padding-left: 120px;
  padding-bottom: 80px;
}
.our-tech {
  padding-left: 120px;
  display: flex;
}
h4 {
  font-size: 2rem;
  padding-left: 120px;
  padding-bottom: 30px;
}
.flex-item-2 {
  flex: 1 1 calc(50% - 20px);
}
.our-tech .footer {
  padding-left: 120px;
  display: flex;
}
.flex-item-3 {
  flex: 1 1;
}
.footer {
  margin-top: 80px;
  padding-top: 80px;
  height: 400px;
  background-color: #070505;
  color: #fff;
}

@media screen and (max-width: 1920px) {
  p {
    font-size: 16px;
  }
  h1 {
    font-size: 48px;
  }
  .products h3 {
    font-size: 36px;
  }
  .our-tech-h3 h3 {
    font-size: 36px;
  }
  h4 {
    font-size: 28px;
  }
  .flex-item img {
    max-width: 300px;
  }
}
@media screen and (max-width: 800px) {
  p {
    font-size: 16px;
  }
  h1 {
    font-size: 38px;
  }
  .products h3 {
    font-size: 30px;
  }
  .our-tech-h3 h3 {
    font-size: 28px;
  }
  h4 {
    font-size: 28px;
  }
  h1 {
    max-width: 90%;
    font-weight: bold;
  }
  p {
    max-width: 80%;
  }
  .jumbo1 {
    padding-left: 20px;
    height: 60vh;
    color: #fff;
    background-image: linear-gradient(0deg, #00000036, #0000002b),
      url(../assets/opsis-hero-img.webp);
    background-size: initial;
    background-position: right center;
  }
  .product {
    padding-left: 20px;
    display: flex;
    flex-wrap: row;
  }
  .flex-item img {
    width: 340px;
  }
}

@media screen and (max-width: 450px) {
  .nav img {
    max-width: 120px;
  }
  .products h3 {
    padding-left: 20px;
  }
  .our-tech {
    display: block;
    padding-left: 20px;
  }
  .our-tech-h3 h3 {
    padding-left: 20px;
    padding-bottom: 20px;
  }
  div h4 {
    display: block;
    padding-left: 20px;
    font-size: 22px;
  }
  .footer {
    margin-top: 0px;
    padding-top: 40px;
    height: 240px;
  }
}