/* ============================================================================= UI-kit layout CSS — composes the design system into the actual app shell. Light theme is default; dark theme tokens cascade from . ============================================================================= */ html, body { height: 100%; } body { background: var(--bg); color: var(--fg); overflow-x: hidden; } #root, .bk-app { position: relative; min-height: 100vh; z-index: 1; } /* Layout shell: side nav on desktop, drawer on mobile. --bk-sidenav-w is the single source of truth for the rail width: both the