:root {
  --font-display: 'Fraunces', Georgia, serif;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --color-ink: #0e1a0a;
  --color-paper: #f6f8f5;
  --color-rule: #d8e4d2;
  --color-spark: #3a8220;
  --color-spark-dark: #1f4d10;
  --color-spark-dim: #daf0d2;
  --color-muted: #6a7d64;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--color-paper);
  color: var(--color-ink);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-rule); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-muted); }

.wrap {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-rule);
}

.header-inner {
  height: 5.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-img {
  height: 4.5rem;
  width: auto;
  object-fit: contain;
  transition: opacity 0.2s;
}

.logo:hover .logo-img {
  opacity: 0.9;
}

.logo-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  background-color: var(--color-spark-dim);
  color: var(--color-spark-dark);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-btn {
  padding: 0.5rem 1rem;
  border-radius: 0.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  color: var(--color-muted);
  transition: background-color 0.15s, color 0.15s;
}

.nav-btn.is-active {
  background-color: var(--color-spark);
  color: #fff;
}

/* Main */
.main {
  flex: 1;
  width: 100%;
  padding: 3rem 1.5rem;
}

.section {
  display: none;
}

.section.is-active {
  display: block;
}

[hidden] {
  display: none !important;
}

.section-heading {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-rule);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-spark);
  margin: 0 0 0.5rem;
}

.heading {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
  color: var(--color-ink);
}

.section-sub {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--color-muted);
}

/* Featured article */
.featured-article {
  display: block;
  margin-bottom: 3rem;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--color-rule);
  transition: box-shadow 0.2s;
}

.featured-article:hover {
  box-shadow: 0 10px 25px -5px rgba(14, 26, 10, 0.15);
}

.featured-article:hover .featured-media img {
  transform: scale(1.05);
}

.featured-media {
  aspect-ratio: 16 / 9;
  background-color: #f0f0f0;
  overflow: hidden;
}

.featured-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.featured-body {
  padding: 1.25rem;
  background-color: var(--color-ink);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-spark);
}

.featured-title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
  color: #fff;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-summary {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: #9e9c96;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mono-muted {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
}

.featured-body .mono-muted {
  color: #6a6860;
}

.featured-body .dot {
  color: #3a3830;
}

.read-more {
  margin-left: auto;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-spark);
  transition: color 0.15s;
}

.featured-article:hover .read-more {
  color: #fff;
}

/* Article grid */
.article-grid, .video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card {
  display: flex;
  flex-direction: column;
  border-radius: 0.75rem;
  border: 1px solid var(--color-rule);
  overflow: hidden;
  background-color: #fff;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 6px 16px -4px rgba(14, 26, 10, 0.12);
}

.card:hover .card-media img {
  transform: scale(1.05);
}

.card-media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: #f0f0f0;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-ink);
}

.card-summary {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-muted);
  flex: 1;
}

.card-meta {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-rule);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-meta .dot {
  color: var(--color-rule);
}

/* Video cards */
.video-media {
  position: relative;
  height: 12rem;
  background-color: #111;
  overflow: hidden;
}

.video-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  transition: transform 0.5s;
}

.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.play-btn {
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(58, 130, 32, 0.92);
  backdrop-filter: blur(4px);
  transition: transform 0.2s;
}

.card:hover .play-btn {
  transform: scale(1.1);
}

.duration-badge {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.125rem 0.5rem;
  border-radius: 0.25rem;
  color: #fff;
  background-color: rgba(0, 0, 0, 0.75);
}

/* Footer */
.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--color-rule);
}

.footer-inner {
  padding: 2.5rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.footer-cta {
  text-align: center;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-rule);
}

.footer-cta-label {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.footer-mailto {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  background-color: var(--color-spark);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: opacity 0.15s, transform 0.15s;
}

.footer-mailto:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  transition: color 0.15s;
}

.footer-link:hover {
  color: #3a8220;
}

/* Breakpoints */
@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
  }
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }

  .featured-article {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .video-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Image placeholder (articles without a featured image) */
.card-media.placeholder,
.featured-media.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-spark-dim), var(--color-rule));
}

.card-media.placeholder span,
.featured-media.placeholder span {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-spark-dark);
  opacity: 0.5;
}

/* Article detail page */
.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  transition: color 0.15s;
}

.back-link:hover {
  color: var(--color-spark);
}

.article-detail {
  max-width: 44rem;
  margin: 0 auto;
}

.article-detail-header {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-rule);
}

.article-detail-title {
  margin-top: 0.75rem;
}

.article-detail-meta {
  margin-top: 1rem;
}

.article-detail-media {
  margin-bottom: 2rem;
  border-radius: 0.75rem;
  overflow: hidden;
}

.article-detail-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Prose (rendered markdown body) */
.prose {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-ink);
}

.prose > * + * {
  margin-top: 1.25em;
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 2em;
}

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
  margin-top: 1.75em;
}

.prose p {
  color: var(--color-ink);
}

.prose a {
  color: var(--color-spark);
  text-decoration: underline;
}

.prose ul,
.prose ol {
  padding-left: 1.5rem;
}

.prose li + li {
  margin-top: 0.5em;
}

.prose blockquote {
  margin: 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--color-spark);
  background-color: var(--color-spark-dim);
  border-radius: 0 0.5rem 0.5rem 0;
  color: var(--color-spark-dark);
  font-size: 0.9375rem;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-spark-dim);
  padding: 0.125em 0.375em;
  border-radius: 0.25rem;
}

.prose pre {
  padding: 1.25rem;
  border-radius: 0.5rem;
  background-color: var(--color-ink);
  overflow-x: auto;
}

.prose pre code {
  background-color: transparent;
  padding: 0;
  color: #f6f8f5;
}

.prose img {
  border-radius: 0.5rem;
}

.video-embed-link {
  display: block;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--color-rule);
}

.video-embed-link .video-media {
  height: auto;
  aspect-ratio: 16 / 9;
}

.video-embed-link .video-media img {
  object-fit: cover;
}

.video-embed-link:hover .play-btn {
  transform: scale(1.1);
}

.video-embed-caption {
  margin: 0;
  padding: 1rem 1.25rem;
  background-color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-muted);
}