/* Base typography and layout */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #f7f7f7;
  color: #333;
}

.container { max-width: 900px; margin: 0 auto; padding: 1rem; }

.site-header, .site-footer {
  background: #fff;
  border-bottom: 1px solid #e0e0e0;
}
.site-footer { border-top: 1px solid #e0e0e0; border-bottom: none; }

.site-title a { color: inherit; text-decoration: none; }
.site-nav a { margin-right: .75rem; text-decoration: none; color: #0b5fff; }
.site-nav a:hover { text-decoration: underline; }

.page h1, .post h1 { margin-top: 0.2rem; }

.post-list { list-style: none; padding-left: 0; }
.post-list-item { background: #fff; padding: 1rem; margin: 0 0 1rem 0; border-radius: 8px; border: 1px solid #eee; }

.tags a { text-decoration: none; font-size: 0.9rem; }
.tag-list { list-style: none; padding-left: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.tag-list li { background: #fff; border: 1px solid #eee; padding: .25rem .5rem; border-radius: 999px; }

/* ==== Home (two-column) ==== */
.home-grid { display: grid; grid-template-columns: 300px 1fr; gap: 2rem; }
@media (max-width: 900px) { .home-grid { grid-template-columns: 1fr; } }

.sidebar {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 1rem;
  text-align: left;
}
.avatar-wrap { display:flex; justify-content:center; margin-bottom: .75rem; }
.avatar { width: 160px; height: 160px; border-radius: 50%; object-fit: cover; border: 1px solid #e0e0e0; }
.author-name { margin: .25rem 0; }
.affiliation { color: #666; margin-bottom: .5rem; }

.contact { list-style: none; padding-left: 0; margin: .5rem 0 0 0; }
.contact li { margin: .35rem 0; }

.section-divider { border: none; border-top: 1px solid #eee; margin: 1.25rem 0; }

.news-list { list-style: none; padding-left: 0; }
.news-list li { padding: .5rem 0; border-bottom: 1px solid #f0f0f0; }
.news-date { color: #777; margin-right: .5rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* Hide the duplicated page title on the home for a cleaner look */
.page h1 { display: none; }