/* ==== Header & navigation bar ==== */
.site-header {
  background-color: #000; /* full-width black header background */
}

.site-navbar {
  background-color: #000; /* match header */
  position: sticky;
  top: 0;
  z-index: 1030; /* above content */
  box-shadow: 0 .125rem .25rem rgba(0,0,0,.075); /* shadow-sm equivalent */
}

/* Ensure unread badge aligns nicely in navbar */
#unread-badge { line-height: 1; }

.logo {
  margin-bottom: 20px;
  font-size: 2em;
  font-weight: bold;
  text-align: center;
}

/* ==== Navbar link appearance & active state ==== */
.site-navbar .nav-item {
  display: flex;
  align-items: center;
}

.site-navbar .nav-link {
  color: white;
  padding: 0.5rem 1rem;
  transition: color 0.3s, background-color 0.3s;
  text-decoration: none;
  border-radius: 4px;
  font-size: 1rem;
  display: block;
}

.site-navbar .nav-link:hover,
.site-navbar .nav-link:focus {
  background-color: rgba(255,255,255,0.1);
  color: #7e8fe9;
  text-decoration: none;
}

.site-navbar .nav-item.active .nav-link,
.site-navbar .nav-link.active {
  font-weight: bold;
  border-bottom: 2px solid #ffcc00;
  color: #ffcc00;
  background-color: rgba(255,255,255,0.08);
}