:root {
  /* Palette - Industrial & Functional */
  --c-bg: #f8f9fa; /* Very light cool grey */
  --c-surface: #ffffff;
  --c-text: #1a1b1c;
  --c-text-muted: #5a5f64;
  --c-accent: #e03a3e; /* Safety red */
  --c-accent-dark: #b72a2e;
  --c-accent-subtle: #fbecec;
  --c-border: #d4d7db;
  --c-surface-alt: #e9ecef;

  --c-wire-red: #d32f2f;
  --c-wire-blue: #1976d2;
  --c-wire-green: #388e3c;
  --c-wire-yellow: #fbc02d;
  --c-wire-black: #212121;
  --c-wire-white: #f5f5f5;

  /* Typography */
  --font-display: 'Oswald', sans-serif;
  --font-text: 'Chivo', sans-serif;
  --font-mono: 'Chivo Mono', monospace;

  /* Scale (Minor Third) */
  --step--2: 0.694rem;
  --step--1: 0.833rem;
  --step-0: 1rem;
  --step-1: 1.2rem;
  --step-2: 1.44rem;
  --step-3: 1.728rem;
  --step-4: 2.074rem;
  --step-5: 2.488rem;
  --step-6: 2.986rem;

  /* Spacing */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --container-max: 1200px;
  --content-max: 800px;
  --radius: 0; /* Industrial feel - no rounded corners */
  --border-width: 2px;
}