:root {
  --ink: #1f2a24;
  --muted: #5f6b64;
  --bg: #fbfaf6;
  --accent: #2f6b4f;
  --accent-soft: #e3efe8;
  --line: #e6e4dc;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 18px/1.7 "PT Serif", Georgia, serif;
}

a { color: var(--accent); }
img { max-width: 100%; display: block; }

.col { max-width: 760px; margin: 0 auto; padding: 0 22px; }

header.site { padding: 36px 0 22px; border-bottom: 1px solid var(--line); }
header.site .col { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.logo img { width: 44px; height: 44px; }
.logo b { display: block; font-size: 22px; }
.logo small { display: block; color: var(--muted); font: 14px Arial, Helvetica, sans-serif; }
header nav a { margin-left: 18px; font: 15px Arial, Helvetica, sans-serif; color: var(--muted); text-decoration: none; }
header nav a:hover { color: var(--accent); }

.post-card { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.post-card img { border-radius: 6px; }
.post-card h2 { margin: 0 0 6px; font-size: 24px; line-height: 1.3; }
.post-card h2 a { color: var(--ink); text-decoration: none; }
.post-card h2 a:hover { color: var(--accent); }
.meta { color: var(--muted); font: 14px Arial, Helvetica, sans-serif; margin-bottom: 8px; }
.tag { display: inline-block; background: var(--accent-soft); color: var(--accent); border-radius: 12px; padding: 1px 10px; margin-right: 6px; font: 13px Arial, Helvetica, sans-serif; }

article { padding: 36px 0; }
article h1 { font-size: 36px; line-height: 1.2; margin: 0 0 10px; }
article h2 { font-size: 24px; margin: 34px 0 10px; }
article .cover { margin: 24px 0; border-radius: 8px; }
article blockquote { margin: 24px 0; padding: 12px 22px; border-left: 4px solid var(--accent); background: var(--accent-soft); }
article ul li { margin: 6px 0; }
.back { font: 15px Arial, Helvetica, sans-serif; }

.about { display: grid; grid-template-columns: 160px 1fr; gap: 28px; padding: 36px 0; }
.about img { border-radius: 50%; }

footer.site { border-top: 1px solid var(--line); margin-top: 40px; padding: 26px 0 40px; color: var(--muted); font: 14px/1.6 Arial, Helvetica, sans-serif; }

@media (max-width: 640px) {
  .post-card, .about { grid-template-columns: 1fr; }
  article h1 { font-size: 28px; }
}