/* Engineering blog — Deep Sage dark palette pulled from LandingPage.css.
   Self-sufficient (no CSS custom properties) so blog pages render correctly
   even before/without the SPA's CSS bundle. */

html, body {
  margin: 0;
  padding: 0;
  background: #121414;
  color: #E4E7E4;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* { box-sizing: border-box; }

a { color: #94B69B; }
a:hover { color: #A8C4AE; }

.blog {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(ellipse at top, #1c2e21 0%, #121414 50%);
  color: #E4E7E4;
}

/* Reuse the landing nav classes. Provide standalone styles in case the
   SPA's CSS hasn't loaded yet (or was stripped). */
.landing-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.landing-logo { height: 28px; opacity: 0.9; }

.landing-signin {
  color: #949C94;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  text-decoration: none;
  transition: all 200ms ease;
}

.landing-signin:hover {
  color: #E4E7E4;
  border-color: #94B69B;
  background: rgba(148, 182, 155, 0.08);
}

.blog-main {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ============================================
   INDEX HEADER
   ============================================ */
.blog-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: #E4E7E4;
}

.blog-subtitle {
  font-size: 1.05rem;
  color: #949C94;
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   POST LIST (cards)
   ============================================ */
.blog-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.blog-card {
  background: #1c1f1f;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  transition: transform 200ms ease, border-color 200ms ease;
}

.blog-card:hover {
  border-color: rgba(148, 182, 155, 0.3);
  transform: translateY(-2px);
}

.blog-card-link {
  display: block;
  padding: 1.5rem 1.75rem;
  color: inherit;
  text-decoration: none;
}

.blog-card-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: #E4E7E4;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.blog-card-meta {
  font-size: 0.825rem;
  color: #949C94;
  margin: 0 0 0.75rem;
}

.blog-card-meta-sep { margin: 0 0.5rem; opacity: 0.5; }

.blog-card-excerpt {
  color: #B9C0B9;
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 0 0.75rem;
}

.blog-card-tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.blog-tag {
  display: inline-block;
  padding: 0.2rem 0.625rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: #94B69B;
  background: rgba(148, 182, 155, 0.08);
  border: 1px solid rgba(148, 182, 155, 0.2);
  border-radius: 9999px;
  letter-spacing: 0.02em;
}

/* ============================================
   POST PAGE
   ============================================ */
.blog-post {
  padding: 0;
}

.blog-post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-back-link {
  margin: 0 0 1.5rem;
  font-size: 0.85rem;
}

.blog-back-link a {
  color: #949C94;
  text-decoration: none;
}

.blog-back-link a:hover { color: #94B69B; }

.blog-post-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: #E4E7E4;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.blog-post-meta {
  font-size: 0.875rem;
  color: #949C94;
  margin: 0;
}

.blog-post-tags {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ============================================
   PROSE (markdown body)
   ============================================ */
.blog-prose {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #D8DCD8;
}

.blog-prose h2 {
  font-size: 1.6rem;
  font-weight: 600;
  color: #E4E7E4;
  margin: 2.75rem 0 1rem;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.blog-prose h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #E4E7E4;
  margin: 2rem 0 0.75rem;
  line-height: 1.35;
}

.blog-prose h2 a, .blog-prose h3 a {
  color: inherit;
  text-decoration: none;
}

.blog-prose p {
  margin: 0 0 1.25rem;
}

.blog-prose strong { color: #E4E7E4; font-weight: 600; }

.blog-prose a {
  color: #94B69B;
  text-decoration: underline;
  text-decoration-color: rgba(148, 182, 155, 0.3);
  text-underline-offset: 2px;
}

.blog-prose a:hover {
  color: #A8C4AE;
  text-decoration-color: #A8C4AE;
}

.blog-prose ul, .blog-prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.blog-prose li {
  margin-bottom: 0.4rem;
}

.blog-prose code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  font-size: 0.88em;
  padding: 0.15em 0.4em;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  color: #C7D2C9;
}

.blog-prose pre {
  background: #0f1212;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 0 0 1.5rem;
  font-size: 0.875rem;
  line-height: 1.55;
}

.blog-prose pre code {
  background: transparent;
  padding: 0;
  font-size: inherit;
  color: #C7D2C9;
}

.blog-prose blockquote {
  margin: 0 0 1.5rem;
  padding: 0.5rem 1.25rem;
  border-left: 3px solid #94B69B;
  background: rgba(148, 182, 155, 0.05);
  color: #B9C0B9;
  font-style: italic;
}

.blog-prose blockquote p:last-child { margin-bottom: 0; }

.blog-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

.blog-prose th, .blog-prose td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-prose th {
  font-weight: 600;
  color: #E4E7E4;
  background: rgba(255, 255, 255, 0.03);
}

.blog-prose hr {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin: 2.5rem 0;
}

.blog-prose img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
}

/* ============================================
   FOOTER (mirrors LandingPageStatic)
   ============================================ */
.landing-footer {
  padding: 1.5rem 2rem;
  text-align: center;
  font-size: 0.8rem;
  color: #949C94;
  opacity: 0.7;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.landing-footer p { margin: 0; }

.landing-footer-links {
  margin-top: 0.5rem;
}

.landing-footer-links a {
  color: inherit;
  text-decoration: none;
}

.landing-footer-links a:hover {
  text-decoration: underline;
}

.landing-footer-sep {
  margin: 0 0.5rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
  .landing-nav { padding: 1rem 1.25rem; }
  .blog-main { padding: 1.5rem 1.25rem 3rem; }
  .blog-title { font-size: 2rem; }
  .blog-post-title { font-size: 1.75rem; }
  .blog-prose { font-size: 1rem; }
  .blog-prose h2 { font-size: 1.4rem; }
  .blog-prose h3 { font-size: 1.15rem; }
  .blog-card-link { padding: 1.25rem 1.25rem; }
}