:root {
  /* Backgrounds */
  --bg-base: #FFFFFF;
  --bg-surface: #F8FAFC;
  --bg-elevated: #FFFFFF;
  --bg-muted: #F1F5F9;

  /* Text */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-tertiary: #94A3B8;
  --text-on-accent: #FFFFFF;

  /* Borders */
  --border-default: #E2E8F0;
  --border-strong: #CBD5E1;
  --border-subtle: #F1F5F9;

  /* Accent — Royal Blue */
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-active: #1E40AF;
  --accent-bg: #EFF6FF;
  --accent-border: #BFDBFE;

  /* Semantic — Status colors */
  --success: #10B981;
  --success-bg: #ECFDF5;
  --success-border: #A7F3D0;

  --warning: #F59E0B;
  --warning-bg: #FFFBEB;
  --warning-border: #FCD34D;

  --danger: #EF4444;
  --danger-bg: #FEF2F2;
  --danger-border: #FECACA;

  --neutral: #64748B;
  --neutral-bg: #F8FAFC;
  --neutral-border: #E2E8F0;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;

  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.8125rem;    /* 13px */
  --text-base: 0.875rem;   /* 14px */
  --text-md: 1rem;         /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */

  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;

  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Spacing */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-12: 3rem;    /* 48px */

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 4px 6px rgba(15, 23, 42, 0.05), 0 2px 4px rgba(15, 23, 42, 0.06);

  /* Status Badge Tokens (Phase A.5) */
  --badge-accepted-text: #047857;
  --badge-accepted-bg: #ECFDF5;
  --badge-accepted-border: #A7F3D0;

  --badge-rejected-text: #B91C1C;
  --badge-rejected-bg: #FEF2F2;
  --badge-rejected-border: #FECACA;

  --badge-pending-text: #BE185D; /* pending_review, in_review */
  --badge-pending-bg: #FCE7F3;
  --badge-pending-border: #F9A8D4;

  --badge-needs-revision-text: #B45309;
  --badge-needs-revision-bg: #FFFBEB;
  --badge-needs-revision-border: #FCD34D;

  --badge-draft-text: #475569;
  --badge-draft-bg: #F1F5F9;
  --badge-draft-border: #CBD5E1;

  --badge-deleted-text: #B91C1C;
  --badge-deleted-bg: #FEF2F2;
  --badge-deleted-border: #FECACA;

  --badge-replaced-text: #475569;
  --badge-replaced-bg: #F1F5F9;
  --badge-replaced-border: #CBD5E1;

  --badge-replacement-text: #1D4ED8;
  --badge-replacement-bg: #EFF6FF;
  --badge-replacement-border: #BFDBFE;

  --badge-locked-text: #475569;
  --badge-locked-bg: #F1F5F9;
  --badge-locked-border: #CBD5E1;
}