:root {
  --bg: #0f0f0f; --surface: #1a1a1a; --surface2: #242424;
  --border: #2e2e2e; --text: #e8e8e8; --muted: #999;
  --accent: #7c6af7; --accent-dim: #3d3472;
  --green: #4ade80; --blue: #60a5fa; --orange: #fb923c;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg); color: var(--text);
  line-height: 1.7; -webkit-font-smoothing: antialiased;
}

/* ─── Header ─────────────────────────────────────── */
.blog-header {
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
  background: rgba(15,15,15,.85); backdrop-filter: blur(20px);
}
.blog-header a { color: var(--text); text-decoration: none; }
.blog-logo { font-size: 15px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.blog-logo span { color: var(--accent); }
.blog-nav { display: flex; gap: 16px; font-size: 13px; }
.blog-nav a { color: var(--muted); transition: color .2s; }
.blog-nav a:hover { color: var(--accent); }

/* ─── Container ──────────────────────────────────── */
.blog-container {
  max-width: 720px; margin: 0 auto;
  padding: 48px 24px 80px;
}

/* ─── Index page ─────────────────────────────────── */
.blog-hero { margin-bottom: 48px; }
.blog-hero h1 { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.blog-hero p { color: var(--muted); font-size: 15px; line-height: 1.6; }

.post-list { display: flex; flex-direction: column; gap: 24px; }

.post-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px;
  transition: border-color .2s, transform .2s;
  text-decoration: none; color: inherit; display: block;
}
.post-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.post-card h2 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.post-card .post-meta {
  font-size: 12px; color: var(--muted); margin-bottom: 10px;
  display: flex; gap: 12px; align-items: center;
}
.post-card .post-tag {
  background: var(--accent-dim); color: var(--accent);
  padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600;
}
.post-card .post-excerpt { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ─── Article ────────────────────────────────────── */
.article-header { margin-bottom: 36px; }
.article-header h1 { font-size: 30px; font-weight: 700; line-height: 1.3; margin-bottom: 12px; }
.article-meta {
  font-size: 13px; color: var(--muted);
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
}
.article-tag {
  background: var(--accent-dim); color: var(--accent);
  padding: 2px 10px; border-radius: 4px; font-size: 11px; font-weight: 600;
}

.article-body { font-size: 16px; line-height: 1.8; }
.article-body h2 { font-size: 22px; font-weight: 700; margin: 36px 0 14px; color: var(--text); }
.article-body h3 { font-size: 18px; font-weight: 600; margin: 28px 0 10px; color: var(--text); }
.article-body p { margin-bottom: 18px; color: #ccc; }
.article-body ul, .article-body ol { margin: 0 0 18px 24px; color: #ccc; }
.article-body li { margin-bottom: 6px; }
.article-body strong { color: var(--text); font-weight: 600; }
.article-body em { color: var(--muted); }
.article-body a { color: var(--accent); text-decoration: none; }
.article-body a:hover { text-decoration: underline; }

.article-body blockquote {
  border-left: 3px solid var(--accent); margin: 24px 0;
  padding: 12px 20px; background: var(--surface);
  border-radius: 0 8px 8px 0; font-size: 15px; color: var(--muted);
}

.article-body code {
  background: var(--surface2); padding: 2px 6px; border-radius: 4px;
  font-size: 14px; font-family: 'SF Mono', Consolas, monospace;
}
.article-body pre {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px; margin: 18px 0;
  overflow-x: auto; font-size: 13px; line-height: 1.6;
}
.article-body pre code { background: none; padding: 0; }

/* ─── CTA ────────────────────────────────────────── */
.blog-cta {
  margin-top: 48px; padding: 28px;
  background: var(--surface); border: 1px solid var(--accent-dim);
  border-radius: 12px; text-align: center;
}
.blog-cta h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.blog-cta p { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.blog-cta a {
  display: inline-block; background: var(--accent); color: #fff;
  padding: 10px 24px; border-radius: 8px; font-size: 14px; font-weight: 600;
  text-decoration: none; transition: opacity .2s;
}
.blog-cta a:hover { opacity: .85; }

/* ─── Footer ─────────────────────────────────────── */
.blog-footer {
  border-top: 1px solid var(--border); padding: 24px;
  text-align: center; font-size: 12px; color: var(--muted);
}
.blog-footer a { color: var(--accent); text-decoration: none; }

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 600px) {
  .blog-container { padding: 32px 16px 60px; }
  .blog-hero h1 { font-size: 22px; }
  .article-header h1 { font-size: 24px; }
  .article-body { font-size: 15px; }
  .post-card { padding: 18px; }
}
@media (max-width: 400px) {
  .blog-container { padding: 24px 12px 48px; }
  .blog-hero h1 { font-size: 20px; }
  .blog-hero p { font-size: 13px; }
  .article-header h1 { font-size: 21px; }
  .article-body { font-size: 14px; }
  .article-body h2 { font-size: 19px; }
  .article-body h3 { font-size: 16px; }
  .post-card { padding: 14px; }
  .post-card h2 { font-size: 15px; }
  .blog-header { padding: 0 12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}