:root {
  --offset: -50px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 1.25rem;
}

.nav .logo {
  font-size: 30px;
  cursor: pointer;
}

.nav .hamburger {
  border: none;
  width: 22px;
  height: 20px;
  background-color: transparent;
  cursor: pointer;
  transition: transform 0.5s;
}

.nav .hamburger .icon {
  position: relative;
  display: block;
  width: inherit;
  height: 3px;
  background-color: black;
}

.nav .hamburger .icon::before,
.nav .hamburger .icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: inherit;
  height: inherit;
  background-color: black;
}

.nav .hamburger .icon::before {
  transform: translateY(-7px);
}

.nav .hamburger .icon::after {
  transform: translateY(7px);
}

.menu {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  list-style-type: none;
}

.menu a {
  position: relative;
  font: 900 0.7rem helvetica, sans-serif;
  text-transform: uppercase;
  text-decoration: none;
  color: black;
  transition: color 0.2s;
}

.menu a::after {
  content: '';
  position: absolute;
  left: 0;
  top: 1.2rem;
  width: 100%;
  height: 3px;
  background-color: black;
  transform-origin: center;
  transform: scaleX(0);
  transition: transform 0.3s;
}

.menu a:hover::after {
  transform: scaleX(1);
}

.bgImg {
  position: fixed;
  top: 0;
  z-index: -10;
  width: 100%;
  height: 100vh;
  background-image: url('https://source.unsplash.com/6yxkUantXjM');
  background-position: center;
  background-size: cover;
  filter: grayscale(100%);
}

.animation .logo {
  color: white;
}

.animation .hamburger {
  transform: rotate(315deg);
  transition: transform 0.5s;
}

.animation .hamburger .icon::before {
  transform: translateY(0);
  background-color: white;
}

.animation .hamburger .icon::after {
  transform: translateY(0) rotate(270deg);
  background-color: white;
}

.animation .menu {
  display: grid;
  opacity: 1;
  background-color: black;
  transition: background-color 0.5s;
}

.animation .menu a {
  color: white;
}

@media (min-width: 600px) {
  .hamburger {
    display: none;
  }
}

@media (max-width: 600px) {
  .menu {
    position: fixed;
    z-index: 10;
    inset: 0;
    flex-direction: column;
    align-content: center;
    justify-content: center;
    text-align: center;
    gap: 1.75rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s, visibility 0.5s;
  }

  .menu a {
    display: block;
    font-size: 0.95rem;
    transform: translateX(var(--offset));
    opacity: 0;
  }

  .menu a:hover {
    color: rgba(255, 255, 255, 0.6);
  }

  .animation .menu {
    opacity: 1;
    visibility: visible;
  }
}