:root {
  --green: #00ff6f;
  --green-transparent: #00ff6fee;
  --dark-green: #12914c;
  --black: #232228;
  --white: #fcfcfc;
}

body {
  background-color: var(--white);
  margin: 0;
}

main {
  margin-top: 75px;
  margin-left: 25px;
}

p,
li,
h1,
h2,
h3,
h4,
h5,
h6,
a {
  font-family: "Fira Sans", sans-serif;
}

a {
  font-size: large;
}

header {
  background: var(--green);
  text-align: center;
  position: fixed;
  z-index: 999;
  width: 100%;

  height: 50px;

  top: 0;
}

/* changed this from the tutorial video to
	 allow it to gain focus, making it tabbable */
.nav-toggle {
  position: absolute !important;
  top: -9999px !important;
  left: -9999px !important;
}

.nav-toggle:focus ~ .nav-toggle-label {
  outline: 3px solid rgba(var(--dark-green) 0.75);
}

.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 {
  display: block;
  background: var(--white);
  height: 2px;
  width: 2em;
  border-radius: 2px;
  position: relative;
}

.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;
  text-align: left;
  top: 100%;
  left: 0;
  background: var(--green);
  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-bottom: 1em;
  margin-left: 1em;
}

nav a {
  color: var(--black);
  text-decoration: none;
  font-size: 1.2rem;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 150ms ease-in-out;
}

nav a:hover {
  color: var(--dark-green);
}

.nav-toggle:checked ~ nav {
  transform: scale(1, 1);
}

.nav-toggle:checked ~ nav a {
  opacity: 1;
  transition: opacity 250ms ease-in-out 250ms;
}

.logo {
  border-radius: 10%;
}

@media screen and (min-width: 800px) {
  .nav-toggle-label {
    display: none;
  }

  header {
    display: grid;
    grid-template-columns: 1fr auto minmax(600px, 3fr) 1fr;
  }

  .logo {
    grid-column: 2 / 3;
  }

  nav {
    all: unset; /* this causes issues with Edge, since it's unsupported */

    /* the following lines are not from my video, but add Edge support */
    position: relative;
    text-align: left;
    transition: none;
    transform: scale(1, 1);
    background: none;
    top: initial;
    left: initial;
    /* end Edge support stuff */

    display: flex;
    justify-content: flex-end;
    align-items: center;
  }

  nav ul {
    display: flex;
  }

  nav li {
    margin-left: 3em;
    margin-bottom: 0;
  }

  nav a {
    opacity: 1;
    position: relative;
  }

  nav a:hover::before {
    transform: scale(1, 1);
  }
}