/* 02-fullwidth-doc-header */

      .shell-body { grid-template-columns: var(--sidebar-w) 1fr var(--right-w); grid-template-rows: auto auto 1fr; }
      .sidebar { grid-row: 1 / 4; }
      .doc-header-span { grid-column: 2; grid-row: 1; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--border); }
      .doc-title-span { grid-column: 2; grid-row: 2; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--border); }
      .shell-inner { grid-column: 2; grid-row: 3; display: grid; grid-template-columns: var(--rail-w) var(--flyout-w) 1fr; min-height: 0; }
      .mode-rail { grid-column: 1; border-right: 1px solid var(--border); }
      .mode-flyout { grid-column: 2; }
      .workspace { grid-column: 3; }
      .right-panel { grid-row: 1 / 4; grid-column: 3; }

      .doc-inner { display: flex; flex-direction: column; gap: 12px; padding: 12px 16px; flex: 1; min-height: 0; overflow: auto; }
      .editor-block { flex: 1; display: flex; flex-direction: column; gap: 8px; min-height: 200px; }
      .editor-head { display: flex; justify-content: space-between; font-size: 13px; font-weight: 600; }