@import url('https://fonts.googleapis.com/css2?family=Monserrat:wght@400;600;900&display-swap');

* {
  padding:0;
  margin:0;
  text-decoration:none;
  List-style:none;
  box-sizing:border-box;
}
body {
  font-family: "Monserrat", sans-serif;
}
header {
  width:100%;
  height:100vh;
  background-image:construccion.jfif;
  background-repeat:no-repeat;
  background-position:center;
  background-size:cover;
}
nav {
  height:100px;
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.logo {
  width:140px;
  margin-left:20px;
}
.bar-btn {
  font size:25px;
  color:#fff;
  margin-right:20px;
  cursor:pointer;
}
.nav-menu {
  position:fixed;
  width:100%;
  height:100vh;
  top:100px;
  background:rgba (0,0,0,.95);
  text-align:center;
  transition:all .5s;
}
.nav.menu li {
  display: block;
  LIne-height:30px;
  margin: 50px 0;
  transition: all .5s;
}
.nav.menu li a {
  color:#fff;
  font-size:16px;
  text-transform:uppercase;
  font-weight:600;
}