/* ---------- LAYOUT ---------- */
.sidebar {
  position: fixed; top: 0; left: 0;
  width: var(--sidebar-width); height: 100%;
  padding: 2rem 1rem;
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
}

main {
  margin-left: var(--sidebar-width);
  padding: 2rem 1rem;
  max-width: 900px;
}