/* ==========================================================================
   ScanFix Design Tokens
   High-performance, modern dark SaaS aesthetic:
   Dark Navy · Electric Cyan/Blue · Emerald Green · Off-White
   ========================================================================== */

:root {
  /* Color Palette - Backgrounds */
  --bg-darkest: #040711;
  --bg-body: #070c18;
  --bg-surface: #0c1427;
  --bg-surface-elevated: #121d36;
  --bg-surface-card: rgba(15, 23, 42, 0.7);
  --bg-glass: rgba(12, 20, 39, 0.75);
  --bg-glass-heavy: rgba(8, 14, 28, 0.88);
  --bg-glass-border: rgba(56, 189, 248, 0.12);

  /* Color Palette - Brand & Accents */
  --cyan-300: #7dd3fc;
  --cyan-400: #38bdf8;
  --cyan-500: #06b6d4;
  --cyan-600: #0284c7;
  --cyan-glow: rgba(6, 182, 212, 0.28);
  --cyan-subtle: rgba(6, 182, 212, 0.08);

  --emerald-300: #6ee7b7;
  --emerald-400: #34d399;
  --emerald-500: #10b981;
  --emerald-600: #059669;
  --emerald-glow: rgba(16, 185, 129, 0.28);
  --emerald-subtle: rgba(16, 185, 129, 0.08);

  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --amber-glow: rgba(245, 158, 11, 0.25);

  --rose-400: #fb7185;
  --rose-500: #f43f5e;
  --rose-glow: rgba(244, 63, 94, 0.25);

  --purple-400: #c084fc;
  --purple-500: #a855f7;

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  --text-inverse: #070c18;

  /* Borders & Dividers */
  --border-subtle: rgba(148, 163, 184, 0.1);
  --border-medium: rgba(148, 163, 184, 0.18);
  --border-strong: rgba(56, 189, 248, 0.25);
  --border-highlight: rgba(56, 189, 248, 0.5);
  --border-emerald: rgba(16, 185, 129, 0.35);

  /* Typography Font Families */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Font Sizes with Fluid Scaling */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: clamp(2.5rem, 5vw, 3.5rem); /* 40px - 56px */
  --text-hero: clamp(2.75rem, 5.5vw, 4.25rem);

  /* 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 */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

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

  /* Shadows & Glows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -4px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 8px 10px -6px rgba(0, 0, 0, 0.7);
  --shadow-card: 0 12px 32px -4px rgba(0, 0, 0, 0.65), 0 0 0 1px var(--border-subtle);
  --shadow-cyan-glow: 0 0 35px -5px var(--cyan-glow);
  --shadow-emerald-glow: 0 0 35px -5px var(--emerald-glow);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Z-Index Hierarchy */
  --z-negative: -1;
  --z-base: 0;
  --z-elevated: 10;
  --z-sticky: 100;
  --z-header: 1000;
  --z-modal-backdrop: 2000;
  --z-modal: 2010;
  --z-toast: 3000;
}