* {
  margin: 0px;
  padding: 0px;
  box-sizing: border-box;
  font-family: "roboto";
}

body {
  width: 1000px;
  margin: auto;
  display: grid;
  grid-template-columns: 1000px;
  grid-template-rows: 130px auto 30px;
  grid-template-areas:
    "hn hn hn hn"
    "mn mn mn mn"
    "ft ft ft ft";
    row-gap: 10px;
    padding-bottom: 20px;
    }

#header-nav {
  grid-area: hn;
  display: grid;
  grid-template-columns: 100%;
  grid-template-rows: 80px 50px;
  grid-template-areas:
    "hd"
    "nv";
    position: sticky;
    top: 0px;
    background-color: white;
}

header {
  position: relative;
  width: 100%;
  grid-area: hd;
  display: grid;
  grid-template-columns: 1000px;
  grid-template-rows: 70px;
  grid-template-areas:
    "tt fe";
  align-items: center;
  padding-top: 10px;
    
}

nav {
  grid-area: nv;
  border-bottom: 1px solid gray;
  }

main {
  grid-area: mn;
  
}

footer {
  grid-area: ft;
  border: 1px solid gray;
  
}