:root {
  --surface-1: #fafafa;
  --surface-2: #ffffff;
  --surface-3: #f4f4f5;
  --border: rgba(0,0,0,0.08);
  --border-strong: rgba(0,0,0,0.16);
  --text-primary: #1a1a1a;
  --text-secondary: rgba(0,0,0,0.6);
  --text-muted: rgba(0,0,0,0.4);
  --text-inverse: #ffffff;
  --bg-accent: #eef4ff;
  --text-accent: #1e40af;
  --border-accent: #3b82f6;
  --severity-high: #dc2626;
  --severity-high-bg: #fee2e2;
  --severity-medium: #d97706;
  --severity-medium-bg: #fef3c7;
  --severity-low: #059669;
  --severity-low-bg: #d1fae5;
  --prevalence-very-high: #10b981;
  --prevalence-high: #34d399;
  --prevalence-medium: #fbbf24;
  --prevalence-low: #94a3b8;
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Monaco, Menlo, monospace;
  --fs-xs: 11px;
  --fs-sm: 12px;
  --fs-base: 14px;
  --fs-md: 16px;
  --fs-lg: 18px;
  --fs-xl: 22px;
  --fs-2xl: 28px;
  --fs-3xl: 36px;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-bold: 600;
  --fw-heavy: 700;
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-12: 48px;
  --sp-16: 64px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --max-content-width: 1240px;
  --hub-sidebar-width: 320px;
  --detail-tabs-height: 48px;
}