body {
  margin: 0;
  background-color: #050505;
  color: #f1f1eb;
  font-family: "Courier New", Courier, monospace;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  line-height: 1.75;
}

a {
  color: #6a76fc;
  text-decoration: none;
}

a:hover {
  color: #bd7218;
  text-decoration: underline;
}

header {
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header h1 {
  color: #67f868;
  font-size: 4rem;
  margin: 0;
}

header h2 {
  font-size: 1.5rem;
  margin: 0.5rem 0 0;
}

.site-nav {
  display: inline-flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
  border-bottom: 2px solid #6a76fc;
  padding: 0 0.5rem;
}

.nav-link {
  display: inline-block;
  padding: 0.75rem 1.5rem 0.6rem;
  border: 2px solid #6a76fc;
  border-bottom: none;
  border-radius: 0.75rem 0.75rem 0 0;
  color: inherit;
  background-color: #000000;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  background-color: #1a1a1a;
  color: #bd7218;
  text-decoration: none;
}

.nav-link.active {
  background-color: #1a1a1a;
  color: #e1e1dd;
  box-shadow: 0 4px 0 -2px #000000;
}

.nav-link.active:hover {
  color: #e1e1dd;
}

main {
  max-width: 70ch;
  margin: 0 auto;
  padding: 0 2rem 4rem;
}

section {
  margin-top: 3rem;
}

section h2 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

section h3 {
  font-size: 1.5rem;
  margin: 1.5rem 0 0.5rem;
}

.blog-intro {
  line-height: 1.6;
  margin: 0 0 2rem;
  max-width: 36rem;
}

.post-header {
  border-bottom: 1px solid #333333;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
}

.post-header h2 {
  margin-bottom: 0.5rem;
}

.post-meta {
  color: #9c9c96;
  font-size: 0.875rem;
  margin: 0.25rem 0 1rem;
}

.post-summary {
  border-top: 1px solid #333333;
  margin-top: 2rem;
  padding-top: 1.5rem;
}

.post-summary:first-of-type {
  border-top: none;
  margin-top: 1.5rem;
  padding-top: 0;
}

p {
  line-height: 1.75;
  margin: 1.25rem 0;
}

ul,
ol {
  margin: 1.5rem 0 1.75rem 1.75rem;
  padding: 0;
}

li + li {
  margin-top: 0.75rem;
}

pre {
  background-color: #090909;
  border: 1px solid #333333;
  border-radius: 0.5rem;
  margin: 2rem 0;
  overflow-x: auto;
  padding: 1.5rem;
}

code {
  color: #67f868;
  font-family: "Courier New", Courier, monospace;
}

.intro {
  margin-top: 1.5rem;
  display: grid;
  justify-items: center;
  gap: 1.5rem;
  text-align: center;
}

.intro img {
  max-width: 20rem;
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 1.5rem;
}

.intro-content {
  text-align: left;
  max-width: 36rem;
}

.video-grid {
  display: grid;
  gap: 2rem;
}

.video-grid iframe {
  width: 100%;
  max-width: 560px;
  height: 315px;
  border: 0;
}

.video-grid iframe[allowfullscreen] {
  border: 0;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 3rem;
  }

  .video-grid iframe {
    height: 220px;
  }
}

@media (min-width: 780px) {
  .intro {
    grid-template-columns: auto 1fr;
    text-align: left;
  }
}