/* ============================================
   LINUS — Design Tokens
   Personal AI Assistant for Ruanna
   ============================================ */

:root {
  /* ---- Page ---- */
  --bg-primary: #F8F9FC;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F3F4F8;
  --bg-overlay: rgba(45, 49, 66, 0.4);

  /* ---- Roles ---- */
  --color-mae: #E8B4B8;
  --color-mae-light: #FDF0F1;
  --color-mae-dark: #C4878C;
  --color-business: #7C9CBF;
  --color-business-light: #EEF3F9;
  --color-business-dark: #5A7A9D;
  --color-personal: #B8A9C9;
  --color-personal-light: #F3EFF8;
  --color-personal-dark: #8E7CA8;

  /* ---- Finance ---- */
  --color-finance: #7DBEA0;
  --color-finance-light: #EDF8F2;
  --color-finance-dark: #5A9A7C;

  /* ---- Status ---- */
  --color-danger: #E57373;
  --color-danger-light: #FDEAEA;
  --color-warning: #FFB74D;
  --color-warning-light: #FFF3E0;
  --color-success: #81C784;
  --color-success-light: #E8F5E9;

  /* ---- Text ---- */
  --color-text: #2D3142;
  --color-text-secondary: #6B7280;
  --color-text-muted: #9CA3AF;
  --color-text-inverse: #FFFFFF;

  /* ---- Borders ---- */
  --color-border: #E5E7EB;
  --color-border-light: #F0F1F4;

  /* ---- Linus Orb ---- */
  --color-linus-1: #B8A9C9;
  --color-linus-2: #7C9CBF;
  --color-linus-3: #E8B4B8;
  --color-linus-glow: rgba(184, 169, 201, 0.4);

  /* ---- Shadows ---- */
  --shadow-xs: 0 1px 2px rgba(45, 49, 66, 0.04);
  --shadow-sm: 0 1px 3px rgba(45, 49, 66, 0.06);
  --shadow-md: 0 4px 12px rgba(45, 49, 66, 0.08);
  --shadow-lg: 0 8px 30px rgba(45, 49, 66, 0.12);
  --shadow-xl: 0 16px 48px rgba(45, 49, 66, 0.16);
  --shadow-glow: 0 0 40px rgba(184, 169, 201, 0.3);
  --shadow-glow-active: 0 0 60px rgba(184, 169, 201, 0.5);

  /* ---- Radii ---- */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* ---- Typography ---- */
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --text-xs: 0.6875rem;    /* 11px */
  --text-sm: 0.8125rem;    /* 13px */
  --text-base: 0.9375rem;  /* 15px */
  --text-md: 1rem;         /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.375rem;     /* 22px */
  --text-2xl: 1.75rem;     /* 28px */
  --text-3xl: 2.25rem;     /* 36px */

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

  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;

  /* ---- Spacing (4px base grid) ---- */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;
  --space-4xl: 40px;
  --space-5xl: 48px;
  --space-6xl: 64px;

  /* ---- Layout ---- */
  --nav-height: 72px;
  --header-height: 56px;
  --container-max: 428px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --touch-target: 44px;

  /* ---- Transitions ---- */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ---- Z-Index Scale ---- */
  --z-base: 1;
  --z-card: 10;
  --z-nav: 100;
  --z-linus: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}