@layer layout {
  .app { display: flex; min-height: 100dvh; }

  .sidebar {
    width: var(--sidebar-width); flex: none; position: sticky; top: 0; height: 100dvh; overflow-y: auto;
    display: flex; flex-direction: column; gap: var(--space-4); padding: var(--space-5) var(--space-4);
    background: var(--color-surface); border-right: 1px solid var(--color-line);
  }
  .sidebar__logo { width: 140px; height: auto; margin: 0 6px; }
  .nav-group { display: grid; gap: 2px; }
  .nav-group__title { padding: var(--space-1) 10px; font-size: var(--text-xs); font-weight: 600; color: var(--color-text-subtle); }

  .nav-link {
    display: flex; align-items: center; gap: 10px; min-height: 40px; padding: 0 10px; border-radius: var(--radius-control);
    color: var(--color-text-muted); text-decoration: none; font-size: var(--text-md); font-weight: 500;
  }
  .nav-link .icon { color: var(--color-text-subtle); }
  .nav-link:hover { background: var(--color-surface-hover); color: var(--color-text); }
  .nav-link[aria-current="page"] { background: var(--color-action-soft); color: var(--color-action); font-weight: 700; }
  .nav-link[aria-current="page"] .icon { color: var(--color-action); }
  .sidebar__footer { margin-top: auto; display: grid; gap: var(--space-3); padding-top: var(--space-3); box-shadow: inset 0 1px 0 var(--color-line); }
  .user-card { display: flex; align-items: center; gap: 10px; padding: 0 6px; }
  .avatar { display: grid; place-items: center; width: 36px; height: 36px; flex: none; border-radius: 50%; background: var(--color-action); color: var(--color-on-action); font-size: var(--text-sm); font-weight: 700; }
  .user-card__text { display: grid; line-height: 1.3; min-width: 0; }
  .user-card__name { font-size: var(--text-md); font-weight: 700; overflow-wrap: anywhere; }
  .user-card__meta { font-size: var(--text-xs); color: var(--color-text-subtle); }

  .workspace { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }

  .topbar {
    display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); min-height: var(--topbar-height);
    padding: var(--space-3) var(--space-8); background: var(--color-surface); border-bottom: 1px solid var(--color-line);
  }
  .breadcrumbs { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); color: var(--color-text-subtle); }
  .breadcrumbs [aria-current="page"] { color: var(--color-text); font-weight: 600; }
  .topbar__end { display: flex; align-items: center; gap: var(--space-2); margin-left: auto; }

  .company-menu { position: relative; }

  .company-menu > summary {
    display: inline-flex; align-items: center; gap: 10px; min-height: 40px; padding: 0 12px 0 6px; list-style: none; cursor: pointer;
    border: 1px solid var(--color-control-border); border-radius: var(--radius-control); background: var(--color-surface);
    font-size: var(--text-sm); font-weight: 600; box-shadow: var(--shadow-xs);
  }
  .company-menu > summary::-webkit-details-marker { display: none; }

  .company-menu__list {
    position: absolute; right: 0; top: calc(100% + 6px); z-index: 20; width: 300px; padding: var(--space-2);
    display: grid; gap: 2px; background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-card); box-shadow: var(--shadow-float);
  }

  .company-menu__item {
    display: flex; align-items: center; gap: var(--space-3); width: 100%; min-height: var(--touch-min); padding: var(--space-1) var(--space-2);
    border: 0; border-radius: var(--radius-control); background: transparent; text-align: left; font-size: var(--text-md); font-weight: 500;
  }
  .company-menu__item:hover { background: var(--color-surface-hover); }
  .company-menu__item[aria-current="true"] { font-weight: 700; background: var(--color-action-soft); }

  .main { padding: var(--space-8); display: grid; gap: var(--space-6); align-content: start; }
  .page-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--space-4); }
  .page-head__text { display: grid; gap: var(--space-1); }
  .page-head__eyebrow { font-size: var(--text-md); color: var(--color-text-muted); }
  .page-head__sub { color: var(--color-text-muted); }

  .rate-chip { display: inline-flex; align-items: center; gap: var(--space-2); height: 40px; padding: 0 var(--space-3); border-radius: var(--radius-control); background: var(--color-surface-alt); font-size: var(--text-sm); color: var(--color-text); white-space: nowrap; }
  .rate-chip__code { font-weight: 600; color: var(--color-text-muted); }
  .rate-chip--warning { background: var(--color-warning-soft); color: var(--color-warning); }
  .rate-chip--warning .rate-chip__code { color: inherit; }

  @media (width <= 960px) {
    .app { flex-direction: column; }
    .sidebar { position: static; width: 100%; height: auto; flex-flow: row wrap; align-items: center; }
    .sidebar .nav-group__title, .user-card { display: none; }
    .sidebar__footer { margin: 0 0 0 auto; padding-top: 0; box-shadow: none; }
    .nav-link, .company-menu > summary { min-height: var(--touch-min); }
    .nav-group { display: flex; flex-wrap: wrap; }
    .topbar, .main { padding-left: var(--space-4); padding-right: var(--space-4); }
    .company-menu__list { width: min(300px, calc(100vw - 32px)); }
  }
}