/* ── Top Bar ── */
    #topbar {
      height: var(--topbar-height);
      background: var(--surface-low);
      display: flex;
      align-items: center;
      padding: 0 1.5rem;
      gap: 1.5rem;
      flex-shrink: 0;
      position: relative;
      z-index: 100;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex-shrink: 0;
      min-width: 280px;
    }

    .brand-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary), var(--primary-container));
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      box-shadow: var(--lift-shadow);
    }

    .brand-name {
      font-family: 'Manrope', sans-serif;
      font-size: 1rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.01em;
    }

    .low-sym {
      text-transform: none !important;
      display: inline-block;
    }

    .pipeline-breadcrumb {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.2rem;
    }

    .pipeline-crumb {
      display: flex;
      align-items: center;
      gap: 0.2rem;
    }

    .crumb-btn {
      background: none;
      border: none;
      font-family: 'Inter', sans-serif;
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--outline);
      padding: 0.3rem 0.7rem;
      border-radius: var(--radius-full);
      cursor: pointer;
      transition: all var(--dur-fast) var(--ease-socialite);
    }

    .crumb-btn:hover {
      color: var(--primary);
      background: var(--surface-highest);
    }

    .crumb-btn.active {
      color: var(--primary);
      background: rgba(0, 91, 191, 0.1);
      font-weight: 700;
    }

    .crumb-btn.done {
      color: var(--secondary);
    }

    .crumb-arrow {
      color: var(--outline-variant);
      font-size: 0.8rem;
    }

    .topbar-actions {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex-shrink: 0;
      min-width: 280px;
      justify-content: flex-end;
    }

    .btn-present {
      background: linear-gradient(135deg, var(--primary), var(--primary-container));
      border: none;
      color: var(--on-primary);
      font-family: 'Inter', sans-serif;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 0.45rem 1.2rem;
      border-radius: var(--radius-full);
      cursor: pointer;
      transition: all var(--dur-normal) var(--ease-socialite);
      box-shadow: var(--lift-shadow);
      letter-spacing: 0.02em;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .btn-present:hover {
      transform: translateY(-1px);
      box-shadow: var(--ambient-shadow);
    }

    .btn-present svg {
      vertical-align: middle;
    }

    .icon-btn {
      background: none;
      border: none;
      color: var(--outline);
      font-size: 1.2rem;
      width: 34px;
      height: 34px;
      border-radius: var(--radius-md);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all var(--dur-fast);
    }

    .icon-btn:hover {
      background: var(--surface-high);
      color: var(--primary);
    }

    /* ── Layout ── */
    #app-body {
      flex: 1;
      display: flex;
      overflow: hidden;
    }

    /* ── Left Sidebar ── */
    #sidebar {
      width: var(--sidebar-width);
      background: var(--surface-low);
      display: flex;
      flex-direction: column;
      overflow-y: auto;
      flex-shrink: 0;
    }

    .sidebar-section {
      padding: 1rem;
    }

    .sidebar-section+.sidebar-section {
      padding-top: 0;
    }

    .section-eyebrow {
      font-size: 0.62rem;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--outline);
      margin-bottom: 0.5rem;
    }