/* ==========================================
   QUANTUM WORKFLOWS - EDITORIAL DESIGN TOKENS
   ========================================== */

:root {
  /* Editorial Color System */
  --color-bg: #F5F3EE;            /* Warm off-white / linen page background */
  --color-surface: #FCFBF8;       /* Elevated paper surface */
  --color-surface-muted: #EFECE6; /* Muted secondary surface */
  
  /* Ink & Text */
  --color-text-primary: #171717;  /* Primary deep ink text */
  --color-text-body: #3A3834;     /* Dark readable body text */
  --color-text-muted: #66635E;    /* Secondary slate-brown text */
  --color-text-inverse: #F5F3EE;  /* Light paper text on dark surfaces */

  /* Borders & Structure */
  --color-border: #D9D5CE;        /* Crisp thin neutral border */
  --color-border-dark: #3A3834;   /* Dark element divider */
  
  /* Accents */
  --color-accent: #C4512D;        /* Burnt orange primary brand accent (used sparingly) */
  --color-accent-hover: #A84121;  /* Deeper burnt orange hover */
  --color-accent-subtle: #FDF6F3; /* Soft warm tint for selected workflow nodes */
  --color-accent-border: #E8A892; /* Warm border accent */

  /* Dark Contrast Surfaces */
  --color-dark: #1D2521;          /* Deep dark forest/charcoal contrast surface */
  --color-dark-hover: #2A3530;    /* Dark hover state */

  /* Typography Specs */
  --font-serif: 'Newsreader', 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace;

  --font-heading: var(--font-serif);
  --font-body: var(--font-sans);

  /* Font Scale */
  --fs-xs: 0.75rem;     /* 12px */
  --fs-sm: 0.875rem;    /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-lg: 1.125rem;    /* 18px */
  --fs-xl: 1.35rem;     /* 21.6px */
  --fs-2xl: 1.75rem;    /* 28px */
  --fs-3xl: 2.25rem;    /* 36px */
  --fs-4xl: 3rem;       /* 48px */
  --fs-5xl: 3.75rem;    /* 60px */

  /* 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 */

  /* Layout Constraints */
  --container-max-width: 1240px;
  --header-height: 72px;

  /* Crisp Editorial Radii & Shadows */
  --radius-none: 0px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-full: 9999px;

  /* No Heavy Floating Shadows */
  --shadow-none: none;
  --shadow-sm: 0 1px 2px 0 rgba(23, 23, 23, 0.04);
  --shadow-card-hover: 0 4px 12px rgba(23, 23, 23, 0.05);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}