:root {
  --bg: #faf8f5;
  --text: #1c1a18;
  --muted: #6b6560;
  --accent: #2a6496;
  --accent-hover: #1a4a70;
  --border: #ddd8d2;
  --card-bg: #f2ede8;
  --max-w: 700px;
  --header-bg: #1c1a18;
  --header-text: #f5f0eb;
  --header-nav: rgba(245, 240, 235, 0.75);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #181614;
    --text: #e8e2da;
    --muted: #8a8078;
    --accent: #5b9bd5;
    --accent-hover: #7ab3e0;
    --border: #322e2a;
    --card-bg: #201e1b;
    --header-bg: #0e0d0c;
    --header-text: #f5f0eb;
    --header-nav: rgba(245, 240, 235, 0.7);
  }
}

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

body {
  font-family: Georgia, "Times New Roman", serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ── Header ── */
.site-header {
  background: var(--header-bg);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--header-text);
  text-decoration: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: -0.01em;
}

.site-title:hover {
  color: #fff;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: var(--header-nav);
  font-size: 0.875rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-decoration: none;
}

nav a:hover {
  color: #fff;
  text-decoration: none;
}

/* ── Layout ── */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.site-footer {
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2rem;
  font-size: 0.82rem;
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ── Typography ── */
h1 { font-size: 1.7rem; line-height: 1.25; margin-bottom: 0.5rem; }
h2 { font-size: 1.25rem; line-height: 1.3; margin-bottom: 0.4rem; }
h3 { font-size: 1.1rem; margin-bottom: 0.35rem; }
p  { margin-bottom: 1.1rem; }

/* ── Blog listing ── */
.page-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.post-list { list-style: none; }

.post-item {
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--border);
}

.post-item:first-child {
  border-top: 1px solid var(--border);
}

.post-item h2 {
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
}

.post-item h2 a {
  color: var(--text);
}

.post-item h2 a:hover {
  color: var(--accent);
  text-decoration: none;
}

.post-meta {
  font-size: 0.8rem;
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ── Blog post ── */
.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.post-header h1 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.post-body {
  font-size: 1.0125rem;
  line-height: 1.8;
}

.post-body p     { margin-bottom: 1.25rem; }
.post-body strong { font-weight: 700; }
.post-body em     { font-style: italic; }

.post-body a { text-decoration: underline; }

.post-body blockquote {
  border-left: 3px solid var(--border);
  padding-left: 1.1rem;
  color: var(--muted);
  margin: 1.5rem 0;
}

.post-body img {
  max-width: 100%;
  height: auto;
  margin: 1rem 0;
}

.post-body ul,
.post-body ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.post-body li { margin-bottom: 0.3rem; }

.post-body pre {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
}

.post-body code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.875em;
  background: var(--card-bg);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

.post-body pre code {
  background: none;
  padding: 0;
}

.post-cat {
  font-style: italic;
}

.post-original {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-style: italic;
}

.post-nav {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.post-nav-prev,
.post-nav-next {
  flex: 1;
  color: var(--muted);
  line-height: 1.4;
}

.post-nav-next {
  text-align: right;
}

.post-nav-all {
  flex-shrink: 0;
  color: var(--muted);
  white-space: nowrap;
}

.post-nav a {
  color: var(--text);
  text-decoration: none;
}

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