@layer components {
  .sidebar {
    flex: 0 0 var(--sidebar-width);
    width: var(--sidebar-width);
    background: var(--color-side);
    color: var(--color-side-ink);
    padding: var(--block-space) 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: sticky;
    top: 0;
    max-height: 100dvh;
    overflow-y: auto;
    align-self: flex-start;

    @media (max-width: 90ch) { flex-basis: 100%; width: 100%; position: static; max-height: none; }
  }

  .sidebar__brand {
    display: block;
    padding: 0.25rem 0.75rem 1.125rem;
    font-weight: 800;
    font-size: 1.375rem;
    letter-spacing: -0.01em;
    text-decoration: none;

    & b { color: var(--color-logo-red); }
    & i { color: var(--color-logo-green); font-style: normal; }
    &:hover { text-decoration: none; }
  }

  .sidebar__section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1.25rem 0.75rem 0.375rem;
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--color-side-muted);

    &::before {
      content: "";
      width: 10px;
      height: 10px;
      border-radius: 3px;
      background: var(--section-color, var(--color-side-muted));
    }
  }

  .sidebar__section--requests { --section-color: var(--color-section-requests); }
  .sidebar__section--invoices { --section-color: var(--color-section-invoices); }
  .sidebar__section--services { --section-color: var(--color-section-services); }
  .sidebar__section--rfc { --section-color: var(--color-section-rfc); }
  .sidebar__section--reference { --section-color: var(--color-section-reference); }

  .sidebar__link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5625rem 0.75rem;
    border-radius: var(--radius);
    color: var(--color-side-ink);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-base);
    transition: background var(--duration) var(--ease);

    & svg { width: 18px; height: 18px; flex: none; }
    &:hover { background: color-mix(in oklab, var(--color-side-on), transparent 50%); text-decoration: none; }
    &[aria-current="page"] { background: var(--color-side-on); color: var(--color-side-on-ink); font-weight: 700; }
  }

  .sidebar__user {
    margin-top: auto;
    padding: 0.875rem 0.75rem 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    border-top: 1px solid var(--color-side-on);
    line-height: 1.2;
    color: var(--color-side-ink);

    & strong { display: block; color: #fff; font-size: 0.875rem; }
    & small { font-size: var(--text-xs); }
  }
}