/* Top navigation bar — for node pages and satellite pages */

.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 52px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 1000;
  font-family: var(--font-nav);
  font-size: 13px;
}

.topnav-brand {
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
  transition: color 0.2s;
}
.topnav-brand:hover { color: var(--text); }

.topnav-sep {
  color: var(--border-lit);
  margin: 0 16px;
  font-size: 14px;
  user-select: none;
}

.topnav-links {
  display: flex;
  align-items: center;
  gap: 0;
  margin-left: auto;
}

.topnav-links a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 4px 12px;
  font-size: 12px;
  transition: color 0.2s;
  white-space: nowrap;
}
.topnav-links a:hover { color: var(--text-bright); }
.topnav-links a.active { color: var(--text-white); }

/* Node page main content area */
.node-main {
  min-height: 100vh;
  padding-top: 52px;
}

.node-content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--content-pad);
}

@media (max-width: 840px) {
  .topnav { padding: 0 16px; }
  .topnav-links { gap: 0; }
  .topnav-links a { padding: 4px 8px; font-size: 11px; }
  .topnav-sep { margin: 0 8px; }
  .node-content { padding: 24px 20px; }
}

@media (max-width: 520px) {
  .topnav-links a { padding: 4px 6px; font-size: 10px; }
  .node-content { padding: 20px 16px; }
}