:root {
  --color-primary: #1e5a8a;
  --color-primary-hover: #174a72;
  --color-sidebar-bg: #0f2744;
  --color-sidebar-text: #c8d6e5;
  --color-sidebar-text-muted: #8fa3b8;
  --color-sidebar-active: #ffffff;
  --color-sidebar-hover-bg: rgba(255, 255, 255, 0.08);
  --color-sidebar-active-bg: rgba(255, 255, 255, 0.12);
  --color-surface: #ffffff;
  --color-bg: #f4f6f8;
  --color-border: #e2e8f0;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --radius-sm: 6px;
  --radius-md: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 39, 68, 0.08);
  --sidebar-width: 260px;
  --topbar-height: 56px;
  --font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}