.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border, #e2e8f0);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.site-nav-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}

.site-brand:hover .site-brand-name {
  color: var(--brand-700, #047857);
}

.site-logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-600, #059669), var(--brand-700, #047857));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.35);
  flex-shrink: 0;
}

.site-logo svg {
  width: 18px;
  height: 18px;
}

.site-brand-name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text, #0f172a);
  line-height: 1.2;
  transition: color 0.15s ease;
}

.btn-nav-demo {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--brand-600, #059669), var(--brand-700, #047857));
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.3);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  flex-shrink: 0;
}

.btn-nav-demo:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.35);
}

.btn-nav-demo.is-active {
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.35);
}

.demo-page .app-header {
  top: 55px;
}

.demo-page .app-header-actions-only .app-header-inner {
  justify-content: flex-end;
}

@media (max-width: 640px) {
  .site-nav-inner {
    padding: 8px 14px;
  }
}