@import url("https://fonts.googleapis.com/css2?family=Noto+Sans:wght@200&display=swap");

:root {
  --background: rgba(0, 214, 170, 0.85);
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: #222;
  font-family: "Noto Sans", sans-serif;
  font-weight: 400;
}
.content {
  height: 200vh;

  background-image: url(//unsplash.it/1000/1000);
  background-color: #333;
  background-blend-mode: multiply;
  background-size: cover;

  display: grid;
  place-items: center;
}
/* navigation style starts here*/
header {
  background: var(--background);

  text-align: center;
  position: fixed;
  z-index: 99;

  width: 100%;
}
.nav-toggle {
  display: none;
}
.nav-toggle-label {
  position: absolute;
  top: 0;
  left: 0;

  margin-left: 1em;
  height: 100%;

  display: flex;
  align-items: center;
}
.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  height: 2px;
  width: 2em;

  position: relative;

  display: block;
  background: white;
  border-radius: 2px;
}
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: "";
  position: absolute;
}
.nav-toggle-label span::before {
  bottom: 7px;
}
.nav-toggle-label span::after {
  top: 7px;
}
nav {
  position: absolute;
  top: 100%;
  left: 0;

  text-align: left;
  background: var(--background);

  width: 100%;

  transform: scale(1, 0);
  transform-origin: top;
  transition: transform 400ms ease-in-out;
}
nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
nav li {
  margin: 0 0 1em 1em;
}
nav a {
  color: white;
  text-decoration: none;
  font-size: 1.2rem;
  text-transform: uppercase;
  opacity: 0;

  transition: opacity 150ms ease-in-out;
}
nav a:hover {
  color: #000;
}
.nav-toggle:checked ~ nav {
  transform: scale(1, 1);
}
.nav-toggle:checked ~ nav a {
  opacity: 1;
  transition: opacity 250ms ease-in-out 250ms;
}
@media screen and (min-width: 800px) {
  .nav-toggle-label {
    display: none;
  }
  header {
    display: grid;
    grid-template-columns: 1fr minmax(250px, 3fr) 1fr 1fr;
  }
  .logo {
    grid-column: 1/2;
  }
  nav {
    all: unset;

    grid-column: 3/4;

    display: flex;
    justify-content: flex-end;
    align-items: center;
  }
  nav a {
    opacity: 1;
    position: relative;
  }
  nav ul {
    display: flex;
  }
  nav li {
    margin-left: 3em;
    margin-bottom: 0;
  }
  nav a::before {
    content: "";
    display: block;

    height: 5px;
    background: #000;
    position: absolute;
    top: -0.75em;
    left: 0;
    right: 0;

    transform: scale(0, 1);
    transition: transform ease-in-out 250ms;
  }
  nav a:hover::before {
    transform: scale(1, 1);
  }
}