/* Sidebar glass */
.glass-sidebar {
  background: var(--glass-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-right: 1px solid rgba(0,0,0,0.05);
}

/* Navigation */
.nav-item {
  border-radius: var(--radius-md);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  color: var(--apple-gray);
  font-weight: 500;
  user-select: none;
}
.nav-item i { width: 24px; text-align: center; }
.nav-item:hover { background: rgba(0,0,0,0.03); color: var(--apple-text); }
.nav-item.active {
  background: #fff;
  color: var(--apple-blue);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}