/* ===== Blog styles — extends the Users First design system ===== */
/* Relies on the variables and base rules defined in style.css. */

:root {
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --content-width: 720px;
}

/* ===== Top navigation (blog pages) ===== */
.site-nav {
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.site-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.site-nav-logo img {
  height: 26px;
  width: auto;
  filter: invert(1) brightness(1.8) contrast(1.3);
  opacity: 0.9;
  transition: opacity 0.2s;
}

.site-nav-logo:hover img {
  opacity: 1;
}

.site-nav-links {
  display: flex;
  gap: 1.75rem;
}

.site-nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

.site-nav-links a:hover {
  color: var(--accent-green);
}

/* ===== Blog hero ===== */
.blog-hero {
  padding: 4.5rem 0 2rem;
}

.blog-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: 0.75rem;
}

.blog-title {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  line-height: 1.1;
}

.rss-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.rss-link:hover {
  color: var(--accent-green);
}

.rss-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px rgba(68, 255, 102, 0.6);
}

/* ===== Post list ===== */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 920px;
  margin: 0 auto 3rem;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

a.post-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-green);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(68, 255, 102, 0.12);
}

.post-card h2 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  line-height: 1.25;
}

.post-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  flex: 1;
  margin-bottom: 1.25rem;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 0.9rem;
}

.post-card-dot {
  opacity: 0.5;
}

.blog-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 0;
}

/* ===== Tags ===== */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.post-tag {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent-blue);
  background: rgba(74, 170, 255, 0.1);
  border: 1px solid rgba(74, 170, 255, 0.22);
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-family: var(--font-mono);
}

.draft-badge {
  background: rgba(170, 102, 255, 0.14);
  color: var(--accent-magenta);
  border: 1px solid rgba(170, 102, 255, 0.3);
}

/* ===== Single post ===== */
.post {
  max-width: var(--content-width);
  padding-top: 3rem;
  padding-bottom: 1rem;
}

.post-back {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-family: var(--font-mono);
}

.post-back:hover {
  color: var(--accent-green);
}

.post-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2rem;
}

.post-header h1 {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0.75rem 0 0;
}

.post-lede {
  font-size: 1.15rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-top: 1rem;
  line-height: 1.5;
}

.post-header .post-tags {
  margin-top: 1.25rem;
  margin-bottom: 0;
}

/* ===== Post body typography ===== */
.post-body {
  font-size: 1.075rem;
  line-height: 1.75;
  color: var(--text-primary);
}

.post-body > * + * {
  margin-top: 1.4rem;
}

.post-body h2 {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: 2.75rem;
  margin-bottom: 0.25rem;
}

.post-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 2rem;
}

.post-body p,
.post-body ul,
.post-body ol {
  color: var(--text-secondary);
}

.post-body a {
  color: var(--accent-green);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(68, 255, 102, 0.4);
}

.post-body a:hover {
  text-decoration-color: var(--accent-green);
}

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

.post-body li + li {
  margin-top: 0.5rem;
}

.post-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.post-body blockquote {
  border-left: 3px solid var(--accent-green);
  padding: 0.25rem 0 0.25rem 1.25rem;
  margin-left: 0;
  color: var(--text-secondary);
  font-style: italic;
}

.post-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 0.12em 0.4em;
  color: var(--accent-green);
}

.post-body pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  overflow-x: auto;
  line-height: 1.5;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.post-body img {
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

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

.post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* ===== Draft banner (only shown in draft previews) ===== */
.draft-banner {
  background: rgba(170, 102, 255, 0.1);
  border: 1px solid rgba(170, 102, 255, 0.3);
  border-radius: 10px;
  padding: 0.85rem 1.1rem;
  margin-bottom: 2rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.draft-banner strong {
  color: var(--accent-magenta);
}

/* ===== Responsive ===== */
@media (max-width: 880px) {
  .posts-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .blog-title {
    font-size: 2rem;
  }

  .post-header h1 {
    font-size: 1.85rem;
  }

  .site-nav-links {
    gap: 1.1rem;
  }
}