:root {
  --spacing: 30px;
  --arrow: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" fill="%23E7B44D"><path d="M480-528 296-344l-56-56 240-240 240 240-56 56-184-184Z"/></svg>');
}
body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: Arial;
}

.heading {
  margin: 0 auto;
  margin-bottom: 40px;
  padding-bottom: 30px;
  text-align: center;
  font-family: "Open Sans", serif;
  font-optical-sizing: auto;
  font-weight: 800;
  font-style: normal;
  font-size: 50px;
  font-variation-settings: "wdth" 100;
  color: #666;
  border-bottom: 1px solid #666;
}
label {
  width: 40px;
  height: 40px;
  display: block;
  background-repeat: no-repeat;
  background-size: 100% auto;
  cursor: pointer;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" fill="%23401801"><path d="M120-240v-80h720v80H120Zm0-200v-80h720v80H120Zm0-200v-80h720v80H120Z"/></svg>');
}
input,
span {
  display: none;
}
nav,
article {
  transition: left 0.2s ease-out;
}
nav {
  width: 20%;
  height: 100vh;
  background-color: #401801;
  position: absolute;
  left: -20%;
  top: 0;
  display: flex;
  flex-direction: column;
}
a {
  padding: 15px;
  color: #f2e5d5;
  text-decoration: none;
  font-weight: 700;
}
a:hover {
  color: #401801;
  background-color: #f2e5d5;
}
body:has(input:checked) nav {
  left: 0;
}
article {
  width: 100%;
  min-height: 100vh;
  left: 0;
  background-color: #d9c7b8;
  position: absolute;
}
body:has(input:checked) article {
  left: 20%;
}
body:has(input:checked) label {
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" fill="%23401801"><path d="M120-240v-80h520v80H120Zm664-40L584-480l200-200 56 56-144 144 144 144-56 56ZM120-440v-80h400v80H120Zm0-200v-80h520v80H120Z"/></svg>');
}
p {
  padding: 0;
  margin: 30px 10px;
}