:root {
  color-scheme: light;
  --bg: #f7f7f5;
  --fg: #1f1f1f;
  --muted: #4a4a4a;
  --accent: #1f7a8c;
  --accent-soft: rgba(31, 122, 140, 0.07);
  --border: #d0d0cd;
  font-size: 16px;
}

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

body {
  margin: 0;
  font-family: "IBM Plex Mono", "SFMono-Regular", "Roboto Mono", monospace;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__wrap {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav a {
  margin-left: 1.5rem;
  font-size: 0.95rem;
}

.hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.hero__illustration {
  margin: 0;
  padding: 1.5rem;
  background: #ffffff;
  border: 1px dashed var(--border);
  border-radius: 12px;
  font-size: 0.85rem;
  overflow-x: auto;
}

.hero__content h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 1rem;
}

.hero__content p {
  margin-bottom: 1.5rem;
  max-width: 38ch;
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.cta:hover,
.cta:focus {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(31, 122, 140, 0.25);
}

.section {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

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

.episode-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.episode {
  padding: 1.5rem;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.episode header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.episode h3 {
  margin: 0;
  font-size: 1.1rem;
}

.episode time {
  font-size: 0.85rem;
  color: var(--muted);
}

.episode__link {
  margin-top: auto;
  font-size: 0.95rem;
}

.series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.series-grid article {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  min-height: 200px;
}

.callout {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  background: var(--accent-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.callout pre {
  background: #ffffff;
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow-x: auto;
}

.subscribe-form {
  display: grid;
  gap: 0.75rem;
  max-width: 320px;
  padding: 1.5rem;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.subscribe-form label {
  font-size: 0.9rem;
  color: var(--muted);
}

.subscribe-form input,
.subscribe-form button {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.subscribe-form input:focus {
  outline: 2px solid rgba(31, 122, 140, 0.25);
}

.subscribe-form button {
  background: var(--accent);
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.subscribe-form button:hover,
.subscribe-form button:focus {
  opacity: 0.9;
}

.subscribe-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.35rem;
}

.site-footer {
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Blog Post Styles */
.blog-post {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.blog-post__header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.blog-post__header h1 {
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  margin: 0 0 1rem 0;
  line-height: 1.2;
}

.blog-post__meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.blog-post__tldr {
  background: var(--accent-soft);
  padding: 1.25rem;
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  margin: 1.5rem 0 0 0;
}

.blog-post__content {
  font-size: 1.05rem;
  line-height: 1.7;
}

.blog-post__content h2 {
  font-size: 1.6rem;
  margin: 2.5rem 0 1rem 0;
  line-height: 1.3;
}

.blog-post__content h3 {
  font-size: 1.3rem;
  margin: 2rem 0 1rem 0;
  line-height: 1.3;
}

.blog-post__content h4 {
  font-size: 1.1rem;
  margin: 1.75rem 0 0.75rem 0;
  line-height: 1.3;
}

.blog-post__content p {
  margin: 1rem 0;
}

.blog-post__content ul,
.blog-post__content ol {
  margin: 1rem 0;
  padding-left: 2rem;
}

.blog-post__content li {
  margin: 0.5rem 0;
}

.blog-post__content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  font-size: 0.95rem;
}

.blog-post__content th,
.blog-post__content td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.blog-post__content th {
  background: var(--accent-soft);
  font-weight: 700;
}

.blog-post__content tbody tr:last-child td {
  border-bottom: none;
}

.blog-post__content blockquote {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  background: #ffffff;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  font-size: 0.98rem;
}

.blog-post__content blockquote strong {
  color: var(--accent);
}

.blog-post__content hr {
  margin: 2.5rem 0;
  border: none;
  border-top: 1px solid var(--border);
}

.blog-post__footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--muted);
}

.blog-post__footer p {
  margin: 0.5rem 0;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    align-items: center;
  }
  
  .blog-post {
    padding: 4rem 2rem;
  }
}