:root {
  --bg: #0f1419;
  --text: #e7ecf3;
  --muted: #9aa7b8;
  --accent: #5b9dff;
  --card: #171d26;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); }

.site-header, .site-footer, .site-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem;
}

.site-header {
  font-size: 1.25rem;
  font-weight: 700;
  border-bottom: 1px solid #243041;
}

.site-footer {
  color: var(--muted);
  border-top: 1px solid #243041;
}

.post-preview, .post {
  background: var(--card);
  border: 1px solid #243041;
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

time { color: var(--muted); font-size: 0.9rem; }

.post-content img { max-width: 100%; height: auto; border-radius: 8px; }