@charset "UTF-8";
:root {
  --blue: #000000;
  --dark-blue: #ffffff;
  --background: #000000;
  --grey: #333;
  --light-grey: #3b3b3b;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

.accordion {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40vh;
  background: var(--background);

}

.menu {
  width: 100%;
  border-radius: 0.2rem;
  overflow: hidden;
}
.menu a {
  text-decoration: none;
}

.menu-item {
  list-style: none;
  border-top: 1px solid var(--dark-blue);
  overflow: hidden;
}

.btn-accordion {
  display: block;
  padding: 1rem 1.2rem;
  background: var(--blue);
  color: white;
  position: relative;
}
.btn-accordion::before {
  content: '';
  position: absolute;
  width: 1rem;
  height: 1rem;
  background: var(--blue);
  left: 1.5rem;
  bottom: -0.5rem;
  transform: rotate(45deg);
}
.btn-accordioin i {
  margin-right: 1rem;
}

.menu-item__sub {
  background: var(--grey);
  overflow: hidden;
  transition: max-height 0.3s;
  max-height: 0;
}
.menu-item__sub a {
  display: block;
  padding: 1rem 1.6rem;
  color: white;
  font-size: 0.9rem;
  position: relative;
  border-bottom: 1px solid var(--light-grey);
}
.menu-item__sub a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 0.4rem;
  height: 100%;
  background: var(--blue);
  transform: translatex(-0.4rem);
  transition: 0.3s;
  opacity: 0;
}
.menu-item__sub a:hover::before {
  opacity: 1;
  transform: translatex(0);
}

.menu-item__sub iframe {
	padding-top: 10px;
	background: #fff;
}

.menu-item:target .menu-item__sub {
	max-height: 1000em;
}