:root {
  --bg: #1a1b26;
  --bg-soft: #1f2335;
  --fg: #c0caf5;
  --fg-muted: #9aa5ce;
  --link: #7aa2f7;
  --accent: #7dcfff;
  --border: #2f3549;
  --quote: #bb9af7;
  --code-bg: #1f2335;
  --font-sans: "Inter", system-ui, sans-serif;
  --font-serif: "Playfair Display", serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
}

body {
  font-family: var(--font-sans);
  line-height: 1.7;
  font-size: 18px;
}

.container {
  width: min(100% - 2rem, 42.5rem);
  margin: 2.5rem auto;
}

.site-header {
  margin-bottom: 2rem;
}

.site-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.6rem;
  line-height: 1.25;
  margin: 0;
  letter-spacing: 0.01em;
}

.site-title a {
  color: var(--fg);
  text-decoration: none;
}

.site-subtitle {
  margin: 0.4rem 0 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.site-nav {
  margin-top: 0.7rem;
  display: flex;
  gap: 0.9rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  flex-wrap: wrap;
}

.site-nav a,
a {
  color: var(--link);
  text-decoration: none;
}

a:hover,
a:focus-visible,
.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.content {
  margin-bottom: 2.5rem;
}

.prose h1,
.prose h2,
.prose h3,
.article-header h1 {
  font-family: var(--font-serif);
  font-weight: 600;
}

.article-header h1 {
  margin: 0 0 0.6rem;
  line-height: 1.25;
  font-size: 1.8rem;
}

.article-meta {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-list li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1rem;
  padding: 0.3rem 0;
}

.post-list time {
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 0.87rem;
}

.prose h2,
.prose h3,
.prose h4 {
  line-height: 1.3;
  margin: 2.4rem 0 0.9rem;
}

.prose h4 {
  font-family: var(--font-sans);
  font-weight: 600;
}

.prose p {
  margin: 0 0 1.2rem;
}

.prose ul,
.prose ol,
.prose blockquote,
.prose pre {
  margin: 0 0 1.05rem;
}

.prose ul,
.prose ol {
  padding-left: 1.25rem;
}

.prose li + li {
  margin-top: 0.25rem;
}

.prose code,
.prose pre,
.post-list time {
  font-family: var(--font-mono);
}

.prose :not(pre) > code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.05rem 0.35rem;
  font-size: 0.9em;
}

.prose pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
}

.prose pre code {
  background: transparent;
  border: 0;
  padding: 0;
}

.prose blockquote {
  margin-left: 0;
  padding-left: 1rem;
  border-left: 2px solid var(--quote);
  color: var(--fg-muted);
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.prose img {
  max-width: 100%;
  height: auto;
}

.post-nav {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  body { font-size: 17px; }
  .container { width: min(100% - 1.4rem, 42.5rem); margin: 1.8rem auto; }
  .post-list li { grid-template-columns: 1fr; gap: 0.15rem; }
  .site-nav { gap: 0.75rem; }
}