html {
  overflow-x: hidden;
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  padding: 0;
}

header {
  position: relative;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
    url("images/banner.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 600px;
}

header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 150px; /* adjust fade height */
  background: linear-gradient(to bottom, rgba(42, 108, 51, 0), #143418fe);
}

nav {
  width: 100%;
  padding: 30px;
  font-family: "Gasoek One", sans-serif;
  font-weight: 400;
  font-style: normal;
}

.nav-links {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links li {
  flex: 1;
  text-align: center;
}

.nav-links a {
  position: relative;
  text-decoration: none;
  color: #3fa34d;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background-color: #3fa34d;
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

main {
  height: 100vh;
  background-color: #143418fe;
}