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

:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #666666;
  --color-link: #0066cc;
  --color-link-hover: #004499;
  --color-border: #e0e0e0;
  --color-tag-bg: #f0f0f0;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --max-width: 720px;
}

body {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  margin: 0;
  padding: 0;
}

/* Layout */
.site-header,
.main,
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Nav */
.site-header {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2.5rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-home {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  text-decoration: none;
  margin-right: auto;
}

.nav-home:hover {
  color: var(--color-link);
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.25rem;
}

.nav-links a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.9375rem;
}

.nav-links a:hover {
  color: var(--color-link);
}

/* Footer */
.site-footer {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.875rem;
}

.site-footer a {
  color: var(--color-muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-link);
}

.social-links {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Links */
a {
  color: var(--color-link);
}

a:hover {
  color: var(--color-link-hover);
}

/* Headings */
h1, h2, h3 {
  line-height: 1.3;
  font-weight: 700;
}

.page-title {
  font-size: 1.75rem;
  margin-top: 0;
  margin-bottom: 2rem;
}

/* Post list */
.post-list {
  padding-bottom: 2rem;
}

.post-card {
  padding-bottom: 1.75rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-border);
}

.post-card:last-of-type {
  border-bottom: none;
}

.post-card-title {
  font-size: 1.25rem;
  margin: 0 0 0.35rem;
}

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

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

.post-card-meta {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.post-card-excerpt {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.draft-badge {
  background: #fff3cd;
  color: #856404;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

.pagination a {
  text-decoration: none;
}

.pagination-disabled {
  color: var(--color-muted);
  cursor: default;
}

.pagination-info {
  color: var(--color-muted);
}

/* Single post */
.post {
  padding-bottom: 1rem;
}

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

.post-title {
  font-size: 2rem;
  margin: 0 0 0.75rem;
}

.post-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.post-tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.post-tag {
  background: var(--color-tag-bg);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  font-size: 0.8125rem;
}

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

.post-tag a:hover {
  color: var(--color-link);
}

.tag-name {
  font-weight: 400;
}

/* Post content typography */
.post-content {
  max-width: 100%;
}

.post-content h2 { font-size: 1.5rem; margin-top: 2rem; }
.post-content h3 { font-size: 1.25rem; margin-top: 1.75rem; }
.post-content p { margin: 0 0 1.25rem; }

.post-content pre {
  background: #f5f5f5;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: #f5f5f5;
  padding: 0.15em 0.3em;
  border-radius: 3px;
}

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

.post-content blockquote {
  border-left: 3px solid var(--color-border);
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  color: var(--color-muted);
}

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

/* Search page */
.search-page {
  padding-bottom: 2rem;
}

.search-page .page-title {
  margin-bottom: 1.5rem;
}