/* RESET STYLES & HELPER CLASSES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
:root {
	--level-1: #8dccad;
	--level-2: #f5cc7f;
	--level-3: #7b9fe0;
	--level-4: #f27c8d;
	--black: black;
  }
  
  
  .chart ol {
	list-style: none;
  }
  
  .rectangle {
	position: relative;
	padding: 20px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
  }
  
  .containerChart {
	max-width: 1000px;
	padding: 0 10px;
	margin: 0 auto;
  }
  
  /* LEVEL-1 STYLES
  –––––––––––––––––––––––––––––––––––––––––––––––––– */
  .level-1 {
	width: 50%;
	margin: 0 auto 40px;
	background: var(--level-1);
  }
  
  .level-1::before {
	content: "";
	position: absolute;
	top: 100%;
	left: 50%;
	transform: translateX(-50%);
	width: 2px;
	height: 20px;
	background: var(--black);
  }
  
  
  /* LEVEL-2 STYLES
  –––––––––––––––––––––––––––––––––––––––––––––––––– */
  .level-2-wrapper {
	position: relative;
	display: grid;
	grid-template-columns: repeat(2, 1fr);
  }
  
  .level-2-wrapper::before {
	content: "";
	position: absolute;
	top: -20px;
	left: 25%;
	width: 50%;
	height: 2px;
	background: var(--black);
  }
  
  .level-2-wrapper::after {
	display: none;
	content: "";
	position: absolute;
	left: -20px;
	bottom: -20px;
	width: calc(100% + 20px);
	height: 2px;
	background: var(--black);
  }
  
  .level-2-wrapper li {
	position: relative;
  }
  
  .level-2-wrapper > li::before {
	content: "";
	position: absolute;
	bottom: 100%;
	left: 50%;
	transform: translateX(-50%);
	width: 2px;
	height: 20px;
	background: var(--black);
  }
  
  .level-2 {
	width: 70%;
	margin: 0 auto 40px;
	background: var(--level-2);
  }
  
  .level-2::before {
	content: "";
	position: absolute;
	top: 100%;
	left: 50%;
	transform: translateX(-50%);
	width: 2px;
	height: 20px;
	background: var(--black);
  }
  
  .level-2::after {
	display: none;
	content: "";
	position: absolute;
	top: 50%;
	left: 0%;
	transform: translate(-100%, -50%);
	width: 20px;
	height: 2px;
	background: var(--black);
  }
  
  
  /* LEVEL-3 STYLES
  –––––––––––––––––––––––––––––––––––––––––––––––––– */
  .level-3-wrapper {
	position: relative;
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	grid-column-gap: 20px;
	width: 90%;
	margin: 0 auto;
  }
  
  .level-3-wrapper::before {
	content: "";
	position: absolute;
	top: -20px;
	left: calc(25% - 5px);
	width: calc(50% + 10px);
	height: 2px;
	background: var(--black);
  }
  
  .level-3-wrapper > li::before {
	content: "";
	position: absolute;
	top: 0;
	left: 50%;
	transform: translate(-50%, -100%);
	width: 2px;
	height: 20px;
	background: var(--black);
  }
  
  .level-3 {
	margin-bottom: 20px;
	background: var(--level-3);
  }
  
  
  /* LEVEL-4 STYLES
  –––––––––––––––––––––––––––––––––––––––––––––––––– */
  .level-4-wrapper {
	position: relative;
	width: 80%;
	margin-left: auto;
  }
  
  .level-4-wrapper::before {
	content: "";
	position: absolute;
	top: -20px;
	left: -20px;
	width: 2px;
	height: calc(100% + 20px);
	background: var(--black);
  }
  
  .level-4-wrapper li + li {
	margin-top: 20px;
  }
  
  .level-4 {
	font-weight: normal;
	background: var(--level-4);
  }
  
  .level-4::before {
	content: "";
	position: absolute;
	top: 50%;
	left: 0%;
	transform: translate(-100%, -50%);
	width: 20px;
	height: 2px;
	background: var(--black);
  }
  
  
  /* MQ STYLES
  –––––––––––––––––––––––––––––––––––––––––––––––––– */
  @media screen and (max-width: 700px) {
	.rectangle {
	  padding: 20px 10px;
	}
  
	.level-1,
	.level-2 {
	  width: 100%;
	}
  
	.level-1 {
	  margin-bottom: 20px;
	}
  
	.level-1::before,
	.level-2-wrapper > li::before {
	  display: none;
	}
	
	.level-2-wrapper,
	.level-2-wrapper::after,
	.level-2::after {
	  display: block;
	}
  
	.level-2-wrapper {
	  width: 90%;
	  margin-left: 10%;
	}
  
	.level-2-wrapper::before {
	  left: -20px;
	  width: 2px;
	  height: calc(100% + 40px);
	}
  
	.level-2-wrapper > li:not(:first-child) {
	  margin-top: 50px;
	}
  }