:root {
  --content-width: 680px;
  --wide-width: 1040px;
  --color-text: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-bg: #ffffff;
  --color-border: #ebebeb;
  --color-accent: #0f766e;
  --color-pill-bg: #f2f2f2;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", Helvetica, Arial, sans-serif;
  --body-font-size: 21px;
  --body-line-height: 1.58;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: var(--body-font-size);
  line-height: var(--body-line-height);
}

a { color: inherit; }

img { max-width: 100%; display: block; }

/* --- nav --- */

.site-nav {
  border-bottom: 1px solid var(--color-border);
}

.site-nav-inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-sans);
}

.site-nav .wordmark {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.5rem;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-nav .nav-links { display: flex; gap: 1.5rem; }

.site-nav .nav-links a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

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

/* --- footer --- */

.site-footer {
  max-width: var(--wide-width);
  margin: 4rem auto 2rem;
  padding: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-align: center;
}

/* --- pills --- */

.pill {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--color-pill-bg);
  color: var(--color-text-secondary);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  text-decoration: none;
}

.pill.category { color: var(--color-accent); }

.pill-row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 0.75rem 0; }

/* --- card grid (homepage / category / related) --- */

.post-grid {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2.5rem;
}

.post-card { font-family: var(--font-sans); }

.post-card .thumb {
  aspect-ratio: 1200 / 630;
  overflow: hidden;
  border-radius: 6px;
  margin-bottom: 0.9rem;
  background: var(--color-pill-bg);
}

.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; }

.post-card h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  line-height: 1.3;
  margin: 0.5rem 0 0.4rem;
}

.post-card h2 a { text-decoration: none; }

.post-card .excerpt {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0 0 0.6rem;
}

.post-card .meta {
  color: var(--color-text-secondary);
  font-size: 0.8rem;
}

/* --- single post --- */

.post-hero {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
}

.post-hero .thumb {
  aspect-ratio: 1200 / 630;
  overflow: hidden;
  border-radius: 8px;
}

.post-hero .thumb img { width: 100%; height: 100%; object-fit: cover; }

.post-article {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.post-article h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.2;
  margin: 0 0 1rem;
}

.post-byline {
  font-family: var(--font-sans);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.post-body h2 { font-size: 1.6rem; margin-top: 2.2rem; }
.post-body h3 { font-size: 1.3rem; margin-top: 1.8rem; }
.post-body p { margin: 1.4rem 0; }
.post-body a { color: var(--color-accent); }
.post-body blockquote {
  border-left: 3px solid var(--color-border);
  margin: 1.5rem 0;
  padding-left: 1.2rem;
  color: var(--color-text-secondary);
  font-style: italic;
}
.post-body pre {
  background: #f6f6f6;
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85em;
}
.post-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: #f2f2f2;
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.85em;
}
.post-body pre code { background: none; padding: 0; }

.related-posts {
  max-width: var(--wide-width);
  margin: 3rem auto 0;
  padding: 2rem 1.5rem 0;
  border-top: 1px solid var(--color-border);
}

.related-posts h3 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

/* --- pagination --- */

.pagination {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  font-family: var(--font-sans);
}

.pagination a {
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.9rem;
}

/* --- admin (functional, minimal) --- */

.admin-page {
  font-family: var(--font-sans);
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.admin-page label { display: block; font-size: 0.85rem; margin: 1rem 0 0.3rem; color: var(--color-text-secondary); }
.admin-page input, .admin-page select, .admin-page textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}
.admin-page textarea { font-family: ui-monospace, monospace; min-height: 320px; }
.admin-page button {
  margin-top: 1.5rem;
  padding: 0.7rem 1.4rem;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
}
.admin-page .error { color: #b91c1c; margin: 1rem 0; }
.admin-page table { width: 100%; border-collapse: collapse; margin-top: 1.5rem; }
.admin-page th, .admin-page td { text-align: left; padding: 0.6rem 0.4rem; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }

@media (max-width: 700px) {
  .post-hero { padding: 1rem 1rem 0; }
  .post-article { padding: 2rem 1rem 3rem; }
  .post-grid { padding: 1.5rem 1rem; gap: 2rem; }
}