:root {
  --bg: #0a0a0f;
  --bg-card: #111118;
  --bg-code: #0d0d14;
  --border: #1e1e2e;
  --text: #cdd6f4;
  --text-muted: #6c7086;
  --accent: #89b4fa;
  --accent-hover: #b4d0fc;
  --tag: #1e1e2e;
  --tag-text: #89dceb;
  --heading: #ffffff;
  --link: #89b4fa;
  --link-hover: #cba6f7;
  --code-inline: #f38ba8;
  --stars-opacity: 0.6;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ── Starfield ─────────────────────────────────────────── */
#stars-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: var(--stars-opacity);
}

/* ── Layout ─────────────────────────────────────────────── */
.site-wrapper {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--heading);
  text-decoration: none;
}

.site-title:hover { color: var(--accent); }

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

/* ── Post list ──────────────────────────────────────────── */
.post-list { list-style: none; }

.post-item {
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--border);
}

.post-item:last-child { border-bottom: none; }

.post-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.post-title-link {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--heading);
  text-decoration: none;
  line-height: 1.3;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

.post-title-link:hover { color: var(--accent); }

.post-summary {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.8rem;
}

.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.tag {
  background: var(--tag);
  color: var(--tag-text);
  font-size: 0.75rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  letter-spacing: 0.03em;
}

/* ── Single post ────────────────────────────────────────── */
.post-header { margin-bottom: 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border); }

.post-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--heading);
  line-height: 1.25;
  margin-bottom: 0.8rem;
}

/* ── Article body ───────────────────────────────────────── */
.post-content { max-width: 100%; }

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
  color: var(--heading);
  font-weight: 600;
  line-height: 1.3;
  margin: 2rem 0 0.8rem;
}

.post-content h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; }
.post-content h3 { font-size: 1.2rem; }
.post-content h4 { font-size: 1rem; color: var(--accent); }

.post-content p { margin-bottom: 1.2rem; }

.post-content a { color: var(--link); text-decoration: underline; text-underline-offset: 3px; }
.post-content a:hover { color: var(--link-hover); }

.post-content ul, .post-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.2rem;
}
.post-content li { margin-bottom: 0.3rem; }

.post-content blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.5rem 0;
  padding: 0.5rem 1.2rem;
  color: var(--text-muted);
  font-style: italic;
  background: var(--bg-card);
  border-radius: 0 6px 6px 0;
}

.post-content img {
  max-width: 100%;
  border-radius: 8px;
  margin: 1.5rem 0;
  border: 1px solid var(--border);
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

/* inline code */
.post-content :not(pre) > code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.85em;
  color: var(--code-inline);
  background: var(--bg-code);
  padding: 0.1em 0.45em;
  border-radius: 4px;
}

/* code blocks */
.post-content pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.88rem;
  line-height: 1.6;
}

.post-content pre code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  color: var(--text);
  background: none;
  padding: 0;
}

/* Hugo syntax highlight override — keep dark bg */
.highlight { border-radius: 8px; margin: 1.5rem 0; overflow: hidden; }
.highlight pre { margin: 0; border-radius: 0; border: none; }

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-links { display: flex; gap: 1.2rem; }
.footer-links a { color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }

/* ── Back link ──────────────────────────────────────────── */
.back-link {
  display: inline-block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 2rem;
  transition: color 0.2s;
}
.back-link:hover { color: var(--accent); }
.back-link::before { content: '← '; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 480px) {
  .site-header { flex-direction: column; gap: 0.8rem; }
}