/**
 * tokens.css — ElixerPro.tools Design System Tokens
 * Precision Diagnostics Lab Theme: Crisp, calm, high-contrast, accessible.
 */

:root {
  /* Brand Palette */
  --color-brand-primary: #1F5EFF;
  --color-brand-primary-rgb: 31, 94, 255;
  --color-brand-secondary: #00D2FF;
  --color-brand-glow: rgba(31, 94, 255, 0.18);
  
  /* Status Palette */
  --color-success: #10B981;
  --color-success-bg: rgba(16, 185, 129, 0.12);
  --color-warning: #F59E0B;
  --color-warning-bg: rgba(245, 158, 11, 0.12);
  --color-error: #EF4444;
  --color-error-bg: rgba(239, 68, 68, 0.12);
  --color-info: #0284C7;
  --color-info-bg: rgba(2, 132, 199, 0.12);

  /* Capability Tier Badges */
  --color-tier-a: #0284C7; /* Direct Browser Interaction */
  --color-tier-a-bg: rgba(2, 132, 199, 0.14);
  --color-tier-b: #7C3AED; /* Browser Estimate */
  --color-tier-b-bg: rgba(124, 58, 237, 0.14);
  --color-tier-c: #D97706; /* Guided System Check */
  --color-tier-c-bg: rgba(217, 119, 6, 0.14);
  --color-tier-d: #475569; /* Companion-App */
  --color-tier-d-bg: rgba(71, 85, 105, 0.14);

  /* Typography Scale */
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, Menlo, monospace;
  
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-md: 1.125rem;   /* 18px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.5rem;     /* 24px */
  --font-size-2xl: 1.875rem;  /* 30px */
  --font-size-3xl: 2.25rem;   /* 36px */
  --font-size-4xl: 3rem;      /* 48px */

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

  --line-height-tight: 1.2;
  --line-height-snug: 1.35;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.65;

  /* Spacing Scale */
  --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-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */

  /* Border Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Layout Widths */
  --container-max-width: 1240px;
  --container-narrow-width: 860px;
  --header-height: 72px;

  /* Motion & Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Elevation Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 20px var(--color-brand-glow);
}

/* Light Theme (Default) */
:root, [data-theme="light"] {
  --color-bg-canvas: #F4F7FB;
  --color-bg-surface: #FFFFFF;
  --color-bg-surface-elevated: #FFFFFF;
  --color-bg-subtle: #EDF2F7;
  --color-bg-muted: #E2E8F0;

  --color-border-subtle: #E2E8F0;
  --color-border-medium: #CBD5E1;
  --color-border-focus: #1F5EFF;

  --color-text-primary: #0E1B2C;
  --color-text-secondary: #475569;
  --color-text-muted: #64748B;
  --color-text-inverse: #FFFFFF;

  --glass-surface: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(226, 232, 240, 0.8);
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg-canvas: #080D15;
  --color-bg-surface: #0F1726;
  --color-bg-surface-elevated: #162235;
  --color-bg-subtle: #141F30;
  --color-bg-muted: #1D2B42;

  --color-border-subtle: #1E2D44;
  --color-border-medium: #2D4163;
  --color-border-focus: #3B82F6;

  --color-text-primary: #F8FAFC;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;
  --color-text-inverse: #0E1B2C;

  --glass-surface: rgba(15, 23, 38, 0.85);
  --glass-border: rgba(30, 45, 68, 0.8);

  --color-brand-glow: rgba(59, 130, 246, 0.28);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.5);
}