.app-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(8, 13, 24, 0.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
  outline: none;
}

.brand-icon {
  width: 30px;
  height: 30px;
  color: var(--accent);
  transition: color 200ms var(--ease), filter 200ms var(--ease);
  flex-shrink: 0;
}

.nav-brand:hover .brand-icon {
  color: #00E8F4;
  filter: drop-shadow(0 0 6px var(--accent-glow));
}

.brand-text {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1;
  white-space: nowrap;
}

.brand-viewers { color: var(--text-primary); }
.brand-health  { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color 180ms var(--ease), background 180ms var(--ease);
  letter-spacing: 0.01em;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-actions {
  display: flex;
  align-items: center;
}

.nav-meta {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hipaa-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--success);
  background: var(--success-soft);
  border: 1px solid rgba(34, 217, 160, 0.18);
  padding: 4px 10px 4px 8px;
  border-radius: 20px;
  white-space: nowrap;
}

.hipaa-badge svg {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
}