html {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

* , *::before , *::after {
  box-sizing: inherit;
}

body {
  font-family: sans-serif;
  line-height: 1.5;
  color: #0a0a23;
  background-color: #f5f5f5;
  margin: 0;
}

#main-doc {
  margin-left: max(320px, 32vw);
  padding: 2rem;
  max-width: 900px;
}

#navbar {
  position: fixed;
  width: max(300px, 30vw);
  height: 100%;
  border-right: 2px solid #e2e8f0;
  top: 0;
  left: 0;
  background-color: #fff;
  overflow-y: auto;
  z-index: 10;
}

#navbar header {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid #e2e8f0;
}

#navbar h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
}

.nav-link {
  display: block;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #e2e8f0;
  font-size: 0.95rem;
  transition: all 0.2s;
}

a {
  text-decoration: none;
  color: #475569;
}

a:hover {
  background-color: #f8fafc;
  color: #2563eb;
}

.main-section {
  margin-bottom: 4rem;
}

.main-section h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: #1e293b;
}

.main-section p {
  margin-bottom: 1rem;
  color: #334155;
  font-size: 1.1rem;
}

.title {
  padding: 20px;
}

code {
  display: block;
  background-color: #dcdcdc;
  white-space: pre-wrap;
  border-radius: 8px;
  padding: 10px;
}

@media (max-width: 786px) {
#navbar {
  position: absolute;
  width: 100%;
  height: 250px;
  border-right: none;
  border-bottom: 2px solid #d3d3d3;
  z-index: 1;
}

#main-doc {
    margin-left: 0;
    margin-top: 260px;
  }
}