@layer layout {
  .manager-topbar {
    position: fixed;
    z-index: 50;
    inset: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    height: var(--topbar-height);
    padding: 0 var(--space-6);
    border-bottom: 1px solid var(--color-border);
    background: rgb(11 16 24 / 0.94);
    backdrop-filter: blur(18px);
  }

  .brand-lockup { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }
  .brand {
    color: var(--color-text);
    font-size: 1.05rem;
    font-weight: 850;
    letter-spacing: 0.12em;
    text-decoration: none;
  }
  .brand span { color: var(--color-accent); }
  .product-name {
    padding-left: var(--space-3);
    border-left: 1px solid var(--color-border-strong);
    color: var(--color-text-muted);
    font-size: 0.82rem;
    font-weight: 620;
    white-space: nowrap;
  }

  .top-status { display: flex; align-items: center; justify-content: flex-end; gap: var(--space-4); min-width: 0; }
  .connection-status { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-text-muted); font-size: 0.8rem; white-space: nowrap; }
  .connection-dot { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--color-success); box-shadow: 0 0 0 4px rgb(105 223 163 / 0.1); }
  .connection-dot.error { background: var(--color-danger); box-shadow: 0 0 0 4px rgb(255 139 146 / 0.1); }
  #adminState.error { color: var(--color-danger); }
  .updated-time { color: var(--color-text-faint); font: 0.72rem/1.2 var(--font-mono); white-space: nowrap; }

  .manager-layout { min-height: 100vh; padding-top: var(--topbar-height); }
  .manager-sidebar {
    position: fixed;
    z-index: 40;
    inset: var(--topbar-height) auto 0 0;
    display: flex;
    flex-direction: column;
    width: var(--sidebar-width);
    padding: var(--space-6) var(--space-3) var(--space-4);
    overflow-y: auto;
    border-right: 1px solid var(--color-border);
    background: #0d141f;
  }
  .sidebar-heading { display: grid; gap: 2px; padding: 0 var(--space-3) var(--space-5); border-bottom: 1px solid var(--color-border); }
  .sidebar-heading span { color: var(--color-accent); font: 700 0.63rem/1.3 var(--font-mono); letter-spacing: 0.15em; }
  .sidebar-heading strong { font-size: 0.88rem; font-weight: 650; }
  .manager-nav { display: block; padding-top: var(--space-1); }
  .sidebar-label { margin: var(--space-5) var(--space-3) var(--space-2); color: var(--color-text-faint); font: 700 0.62rem/1.3 var(--font-mono); letter-spacing: 0.14em; }
  .nav-item {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 40px;
    margin: 2px 0;
    padding: 9px 12px 9px 30px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text-muted);
    font-size: 0.86rem;
    font-weight: 580;
    text-align: left;
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  }
  .nav-item::before {
    content: "";
    position: absolute;
    left: 13px;
    width: 6px;
    height: 6px;
    border: 1px solid var(--color-text-faint);
    border-radius: 2px;
    transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
  }
  .nav-item:hover { border-color: rgb(64 83 107 / 0.55); background: var(--color-surface-soft); color: var(--color-text); }
  .nav-item.active { border-color: rgb(102 217 239 / 0.24); background: rgb(102 217 239 / 0.09); color: var(--color-text); }
  .nav-item.active::before { border-color: var(--color-accent); background: var(--color-accent); transform: rotate(45deg); }

  .scope-note { display: flex; align-items: flex-start; gap: var(--space-3); margin: auto var(--space-1) 0; padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-bg-deep); }
  .scope-note strong, .scope-note span { display: block; }
  .scope-note strong { color: var(--color-text); font-size: 0.75rem; }
  .scope-note div > span { margin-top: 3px; color: var(--color-text-faint); font-size: 0.68rem; line-height: 1.5; }
  .scope-indicator { width: 8px; height: 8px; flex: 0 0 auto; margin-top: 5px; border-radius: 50%; background: var(--color-success); }

  .manager-main { width: calc(100% - var(--sidebar-width)); max-width: 1680px; min-width: 0; margin-left: var(--sidebar-width); padding: var(--space-10) clamp(24px, 4vw, 64px) 80px; }
  .manager-view { display: none; min-width: 0; }
  .manager-view.active { display: block; animation: view-in 180ms ease-out both; }
  @keyframes view-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

  .page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-6); margin: 0 0 var(--space-8); }
  .page-heading > div { max-width: 780px; }
  .page-heading h1 { margin: var(--space-1) 0 var(--space-2); }
  .page-heading p:not(.eyebrow) { max-width: 72ch; }
  .eyebrow { color: var(--color-accent); font: 720 0.68rem/1.3 var(--font-mono); letter-spacing: 0.15em; }

  @media (max-width: 980px) {
    :root { --topbar-height: 64px; }
    .manager-topbar { position: sticky; padding: 0 var(--space-4); }
    .manager-layout { padding-top: 0; }
    .manager-sidebar { position: sticky; inset: var(--topbar-height) 0 auto; width: 100%; height: auto; padding: var(--space-2); overflow: auto hidden; border-right: 0; border-bottom: 1px solid var(--color-border); }
    .sidebar-heading, .sidebar-label, .scope-note { display: none; }
    .manager-nav { display: flex; gap: var(--space-1); width: max-content; padding: 0; }
    .nav-item { width: auto; min-width: max-content; margin: 0; padding: 9px 12px; }
    .nav-item::before { display: none; }
    .manager-main { width: 100%; margin-left: 0; padding: var(--space-8) var(--space-5) 64px; }
  }

  @media (max-width: 680px) {
    .product-name, .updated-time { display: none; }
    .manager-topbar { gap: var(--space-2); }
    .top-status { gap: var(--space-2); }
    .connection-status { max-width: 152px; overflow: hidden; text-overflow: ellipsis; }
    .manager-main { padding: var(--space-6) var(--space-4) 56px; }
    .page-heading { align-items: flex-start; flex-direction: column; gap: var(--space-4); margin-bottom: var(--space-6); }
  }
}