*{box-sizing: border-box;}
body{font-family: roboto,poppins;margin:0px;padding:0px;}
p{font-family: roboto,poppins;}
button{font-family: roboto,poppins;}
a{font-family: roboto,poppins;text-decoration: none;}

.main{width: 100vw;height: 100vh;overflow: hidden;} /* background-color: rgba(0,0,0,0.2); */
video{width: 100vw;height: 100vh;position: absolute;z-index: -1;object-fit: cover;}
.logo{width: 150px;}
header{display: flex;align-items: center;justify-content: space-between;}

nav a {margin:10px;text-transform: uppercase;color: white;font-weight: 600;padding: 15px;
}
nav a:hover{background-color: white;transition: 2s;color: black;border-radius: 5px;}

h1{text-align: center;color: white;margin-top: 70px;font-size: 90px;font-weight: 800;}
button{
text-align: center;padding: 15px 60px;margin:20px 5px ;border-radius: 25px;
color:black; border: none;font-size: 20px;cursor: pointer;font-weight: 600;
display: block;margin: 20px auto;
}
button:hover{background-color: rgb(0,192,226);transition: 0.5s;color: white;}

@media screen and (width<700px) {
  header{flex-direction: column;}
  h1{font-size: 35px;}
  nav a {margin: 0px;text-transform: uppercase;color: white;font-weight: 600;padding: 8px;
    
}

}
@media screen and (height<500px) {
  header{flex-direction: column;}
  h1{font-size: 35px;}
  .main{height: 110vh;} /* background-color: rgba(0,0,0,0.2); */
video{height: 110vh;}
}