:root {
  /* ===== Colors (Industrial Integrity — Safety Orange + Steel Slate) ===== */
  --color-surface: #faf8f4;
  --color-surface-dim: #dcd6c9;
  --color-surface-bright: #faf8f4;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #f4f1ea;
  --color-surface-container: #ede9e0;
  --color-surface-container-high: #e7e2d8;
  --color-surface-container-highest: #e0dacd;
  --color-surface-variant: #e0dacd;
  --color-surface-muted: #f5f2eb;
  --color-on-surface: #201c16;
  --color-on-surface-variant: #5c5347;
  --color-inverse-surface: #36312a;
  --color-inverse-on-surface: #f5f2eb;
  --color-background: #faf8f4;
  --color-on-background: #201c16;

  /* Primary (Safety Orange — LOCKED) */
  --color-primary: #e88a2d;
  --color-on-primary: #ffffff;
  --color-primary-container: #fff0e0;
  --color-on-primary-container: #6d3a00;
  --color-primary-fixed: #ffe0c2;
  --color-primary-fixed-dim: #ffb77b;
  --color-on-primary-fixed: #2e1500;
  --color-on-primary-fixed-variant: #6d3a00;
  --color-inverse-primary: #ffb77b;
  --color-surface-tint: #e88a2d;

  /* Secondary (Steel-Slate) */
  --color-secondary: #2f5d72;
  --color-on-secondary: #ffffff;
  --color-secondary-container: #cfe4ee;
  --color-on-secondary-container: #123b4c;
  --color-secondary-fixed: #cfe4ee;
  --color-secondary-fixed-dim: #8fb6c8;
  --color-on-secondary-fixed: #06212c;
  --color-on-secondary-fixed-variant: #244c5e;

  /* Tertiary (Deep Slate) */
  --color-tertiary: #1f4d61;
  --color-on-tertiary: #ffffff;
  --color-tertiary-container: #bcdcea;
  --color-on-tertiary-container: #0c3140;
  --color-tertiary-fixed: #cfe4ee;
  --color-tertiary-fixed-dim: #8fb6c8;
  --color-on-tertiary-fixed: #14323d;
  --color-on-tertiary-fixed-variant: #244c5e;

  /* Accents */
  --color-eco-accent: #a8e0bd;
  --color-success: #2D8A4E;

  /* Error */
  --color-error: #D32F2F;
  --color-on-error: #ffffff;
  --color-error-container: #ffdad6;
  --color-on-error-container: #93000a;

  /* Outlines */
  --color-outline: #83786a;
  --color-outline-variant: #d6cdbf;

  /* ===== Typography ===== */
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "Inter", system-ui, sans-serif;

  --text-display-lg: 48px;
  --text-display-lg--line-height: 56px;
  --text-display-lg--letter-spacing: -0.02em;
  --text-display-lg--font-weight: 700;

  --text-headline-lg: 32px;
  --text-headline-lg--line-height: 40px;
  --text-headline-lg--letter-spacing: -0.01em;
  --text-headline-lg--font-weight: 700;

  --text-headline-lg-mobile: 28px;
  --text-headline-lg-mobile--line-height: 36px;
  --text-headline-lg-mobile--font-weight: 700;

  --text-headline-md: 24px;
  --text-headline-md--line-height: 32px;
  --text-headline-md--font-weight: 600;

  --text-headline-sm: 20px;
  --text-headline-sm--line-height: 28px;
  --text-headline-sm--font-weight: 600;

  --text-body-lg: 18px;
  --text-body-lg--line-height: 28px;
  --text-body-lg--font-weight: 400;

  --text-body-md: 16px;
  --text-body-md--line-height: 24px;
  --text-body-md--font-weight: 400;

  --text-body-sm: 14px;
  --text-body-sm--line-height: 20px;
  --text-body-sm--font-weight: 400;

  --text-label-lg: 14px;
  --text-label-lg--line-height: 20px;
  --text-label-lg--letter-spacing: 0.05em;
  --text-label-lg--font-weight: 600;

  --text-label-md: 12px;
  --text-label-md--line-height: 16px;
  --text-label-md--font-weight: 500;

  /* ===== Radii ===== */
  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;
  --radius-pill: 9999px;

  /* ===== Spacing / Layout ===== */
  --container-max: 1280px;
  --spacing-base: 8px;
  --spacing-gutter: 24px;
  --spacing-margin-mobile: 16px;
  --spacing-margin-desktop: 48px;
  --spacing-stack-xs: 4px;
  --spacing-stack-sm: 12px;
  --spacing-stack-md: 24px;
  --spacing-stack-lg: 48px;
  --spacing-stack-xl: 80px;
}