guichet/static/css/lesgv/burger.css

#menuToggle
{
  display: block;
  position: absolute;
  /* top: 50px;
  left: 50px; */
  float: left;
  top: 1rem;
  left: 1rem;
  
  z-index: 600;
  
  -webkit-user-select: none;
  user-select: none;
  width: 100%;
}

#menuToggle a
{
  text-decoration: none;
  color: var(--color-link);
  
  transition: color 0.3s ease;
}

#menuToggle a:hover
{
  color: var(--color-link-hover);
}

#menu ul.submenu {
  display: none;
  position: absolute;
  z-index: 50;
  float: left;
  background: var(--color-background);
  list-style-type: none;
  padding-right: 1rem;
  padding-left: 1rem;
  padding-top: 1rem;
  border-radius: 0 0 1rem 1rem;
}


#menu ul.submenu li {
  text-align: left;
}

#menu li:hover ul.submenu {
  display: block;
}


#menuToggle input
{
  display: block;
  width: 40px;
  height: 32px;
  position: absolute;
  /* top: -7px;
  left: -5px; */
  right: 3rem;
  top: 1.25rem;
  cursor: pointer;
  
  opacity: 0; /* hide this */
  z-index: 800; /* and place it over the hamburger */
  
  -webkit-touch-callout: none;
}

#menuToggle div.burger {
  float: right;
  margin-right: 3rem;
}

/*
 * Just a quick hamburger
 */
#menuToggle div.burger span
{
  display: block;
  width: 2rem;
  height: 0.25rem;
  margin-bottom: 0.25rem;
  position: relative;
  background: var(--color-text);
  border-radius: 0.2rem;
  z-index: 1;
  /* transform-origin: -4px 0px; */
  transition: transform 0.5s cubic-bezier(0.77,0.2,0.05,1.0), background 0.5s cubic-bezier(0.77,0.2,0.05,1.0), opacity 0.55s ease;
  right: 1rem;
  top: 1rem;
  /* display: block;
  width: 33px;
  height: 4px;
  margin-bottom: 5px;
  position: relative;
  
  background: var(--color-text);
  border-radius: 3px;
  
  z-index: 1;
  
  transform-origin: 4px 0px;
  
  transition: transform 0.5s cubic-bezier(0.77,0.2,0.05,1.0),
              background 0.5s cubic-bezier(0.77,0.2,0.05,1.0),
              opacity 0.55s ease; */
}

#menuToggle div.burger span:first-child
{
  transform-origin: 0% 0%;
}

#menuToggle div.burger span:nth-last-child(2)
{
  transform-origin: 0% 100%;
}

/* 
 * Transform all the slices of hamburger
 * into a crossmark.
 */
#menuToggle input:checked ~ div.burger span
{
  opacity: 1;
  transform: rotate(-45deg) translate(-0.05rem, -0.1rem);
  background: var(--color-secondary);
}

/* body.darkmode #menuToggle input:checked ~ span {
  background: var(--color-secondary-dark);
} */

/*
 * But let's hide the middle one.
 */
#menuToggle input:checked ~ div.burger span:nth-last-child(3)
{
  opacity: 0;
  transform: rotate(0deg) scale(0.2, 0.2);
}

/*
 * Ohyeah and the last one should go the other direction
 */
#menuToggle input:checked ~ div.burger span:nth-last-child(2)
{
  transform: rotate(45deg) translate(-0.1rem, -0.2rem);
}

/*
 * Make this absolute positioned
 * at the top left of the screen
 */
#menu
{
  /* position: absolute; */
  justify-content: space-between;
  visibility: hidden;
  /* width: 300px;
  margin: -100px 0 0 -50px;
  padding: 50px;
  padding-top: 125px; */

  margin: 0.5rem 1rem 0 1rem;
  background: var(--color-background);
  opacity: 0.9;
  border: 1px solid;
  border-radius: 1em;
  list-style-type: none;
  -webkit-font-smoothing: antialiased;
  /* to stop flickering of text in safari */
  

  /* transform-origin: 0% 0%;
  transform: translate(-120%, 0); */
  transform: visibility 1s linear;
  transition-property: visibility;

  
  /* transition: transform 0.5s cubic-bezier(0.77,0.2,0.05,1.0); */
  padding-left: 0;
  padding: 1rem;
  /* left: 3rem; */
  visibility: hidden;
  opacity: 0;


  top: -1rem;
  display: flex;
  /* grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr; */
  column-gap: 1rem;
  flex-wrap: wrap;
}

#menu li
{
  padding: 0 0 0.5rem 0;
  font-size-adjust: 130%;
  text-align: center;
}

/*
 * And let's slide it in from the left
 */
#menuToggle input:checked ~ ul
{
  visibility: visible;
  opacity: 0.9;
  transition: visibility 0s linear 0s, opacity 300ms;
}

@media (max-width: 1200px) {
  #menu
  {
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr;
  }
}

@media (max-width: 800px) {
  #menu
  {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

@media (max-width: 600px) {
  #menu
  {
    grid-template-columns: 1fr;
  }
}