*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.contact_social{
    display:flex;
    justify-content:space-around;
    background-color: #2C4D8D;
    color: #fff;
    padding: 10px;
}
.contact_social ul{
    display:flex;
}

.contact_social ul li {
  list-style: none;
  padding-right: 10px;
}
nav {
  display: grid;
  grid-template-columns: 1fr 5fr;
  background: #fff;
}

nav ul {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

nav ul li {
  margin-right:10px;
  list-style: none;
  cursor:pointer;
  color: #2C4D8D;
  transition: color 0.5s;
}

nav ul li:hover  {
 background-color: #2C4D8D;
 color:#fff;
 padding: 10px;
 border-radius: 10px;
}

.block-logo {
  margin-left: 10px;
}

.img {
  background-image: url("img2.jpg");
  width: 100%;
  height: 100vh;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color:#fff;
}

.img h1 {
  font-size: 10em;
}

.img p{
  font-size: 5em;
}

@media (width<800px) {
  .img {
    min-height: 100vh;
  }
  .img h1 {
    font-size: 5em;
  }
  
  .img p{
    font-size: 2em;
  }
  
  
}

@media (width<590px) {
  .img {
    min-height: 100%;
  }
  .img h1 {
    font-size: 2em;
  }
  
  .img p{
    font-size: 0.5em;
  }
}