/* === Shared Navbar Styles (navbar.css) === */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--border, #eee);
  backdrop-filter: saturate(150%) blur(6px);
}
body.dark .site-header, body.dark-mode .site-header {
  background: #1e1e1e;
  border-bottom-color: #333;
}
.nav-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 10px 16px 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  font-weight: 700;
  font-size: 16px; /* consistent brand text size */
  letter-spacing: 0.2px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol", sans-serif;
}
.brand-sub { 
  font-size: 12px; 
  color: var(--muted, #666); 
  font-weight: 400; 
  margin-top: 2px; 
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol", sans-serif;
}
.nav-menu a {
  margin: 0 8px;
  text-decoration: none;
  color: var(--accent, #1772d0);
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 15px; /* consistent link size */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol", sans-serif;
}
.nav-menu a:hover {
  background: rgba(23,114,208,0.08);
}
.nav-menu a.active {
  font-weight: 600;
  text-decoration: underline;
  color: inherit;
}