.accordion {
  margin: auto;
  width: 80%;
}
.accordion input[type="radio"] {
  display: none;
}
.box {
  position: relative;
  background: white;
  height: 64px;
  transition: all 0.15s ease-in-out;
}
.box::before {
  content: "";
  position: absolute;
  display: block;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  pointer-events: none;
  box-shadow: 0 -1px 0 #e5e5e5, 0 0 2px rgba(0, 0, 0, 0.12),
    0 2px 4px rgba(0, 0, 0, 0.24);
}
header.box {
  background: #b09574;
  cursor: initial;
  box-shadow: 0 -1px 0 #e5e5e5, 0 0 2px -2px rgba(0, 0, 0, 0.12),
    0 2px 4px -4px rgba(0, 0, 0, 0.24);
}
header .box-title {
  margin: 0;
  font-weight: normal;
  font-size: 16pt;
  color: white;
  cursor: initial;
}
.box-title {
  width: calc(100% - 40px);
  height: 64px;
  line-height: 64px;
  padding: 0 20px;
  display: inline-block;
  cursor: pointer;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.box-content {
  width: calc(100% - 40px);
  padding: 30px 20px;
  font-size: 11pt;
  color: rgba(0, 0, 0, 0.54);
  display: none;
}
.box-close {
  position: absolute;
  height: 64px;
  width: 100%;
  top: 0;
  left: 0;
  cursor: pointer;
  display: none;
}
input:checked + .box {
  height: auto;
  margin: 16px 0;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.16), 0 6px 12px rgba(0, 0, 0, 0.32);
}
input:checked + .box .box-title {
  border-bottom: 1px solid rgba(0, 0, 0, 0.18);
}
input:checked + .box .box-content,
input:checked + .box .box-close {
  display: inline-block;
}
.arrows section .box-title {
  padding-left: 44px;
  width: calc(100% - 64px);
}
.arrows section .box-title:before {
  position: absolute;
  display: block;
  content: "\203a";
  font-size: 18pt;
  left: 20px;
  top: -2px;
  transition: transform 0.15s ease-in-out;
  color: rgba(0, 0, 0, 0.54);
}
input:checked + section.box .box-title:before {
  transform: rotate(90deg);
}