* {
  margin: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Inter', sans-serif;
  width: 100%;
}
main {
    display: flex;
}
/* left_container style */
.left_container {
  width: 100%;
  max-width: 250px;
  background-color: #383b43;
  color: rgb(230, 224, 224);
  padding: 24px 0px;
  height: 100vh;
  top: 0;
  position: sticky;
  overflow-y: auto;
  flex-shrink: 1;
}
.left_container h2 {
  font-size: 1.3rem;
  text-align: center;
  font-weight: 700;
  margin-bottom: 25px;
}
.left_container ul {
  list-style: none;
  padding: 0px  10px;
  border-top: 2px solid #fff;
}
.left_container  li {
  margin: 10px 0;
  text-align: center;
}
.left_container ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  display: block;
  padding: 8px 10px;
  border-radius: 5px;
  transition: background 0.2s ease;
}
.left_container a:hover {
  background: #fff;
  color: #000;
}
/* right_container */
.right_container {
  width: 100%;
  background-color: #23272e;
  color: white;
  padding: 40px;
  overflow-y: auto;
}
.right_container section {
  margin-bottom: 40px;
  padding-top: 16px;
}
.right_container h2 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: #ffff;
}
.right_container p,
ul {
  font-size: 1rem;
  line-height: 1.6;
}
.right_container code {
  font-family: 'Fira Code', monospace;
  background:rgba(95, 90, 90 , 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.95rem;
}
.right_container pre {
  width: 100%;
  background: #5b5757;
  padding: 12px;
  border-left: 6px solid #1d1c1c;
  overflow-x: auto;
  font-family: 'Fira Code', monospace;
  border-radius: 5px;
  margin-top: 10px;
  color: #fff;
}
@media(max-width:700px){
  .left_container{
    max-width: 200px;
  }
}
@media(max-width:500px){
  main{
    flex-direction: column;
  }
  .left_container{
    max-width: 500px;
    height: 90vh;
    position: static;
        border-bottom: 2px solid #000;
  }
}