/* BioVerdi — design tokens.
   SINGLE SOURCE OF TRUTH for every brand value. A brand hex outside this file is a defect.
   Colors measured from assets/brand/bioverdi-logo-source.jpg on 2026-09-07
   (BMP pixel sample: leaf mode #386850, leaf mean #417054, wordmark mean #3B6C52,
   gold trace core median #D0B770). */

:root {
  /* MEASURED from the logo artwork */
  --green-700: #3A6B51;   /* the leaf and the wordmark. The only brand green. */
  --gold-400:  #D0B770;   /* the circuit traces. FILL / ACCENT ONLY — 1.96:1 on white, fails AA for text. */

  /* DERIVED — constructed, not measured */
  --green-900: #1E3D2E;   /* dark ground for hero, footer, inverted sections. 11.92:1 with white. */
  --green-800: #2B5440;
  --green-100: #DCE8E0;
  --green-050: #F4F7F4;   /* page tint */
  --gold-700:  #8A7233;   /* same hue as gold-400, luminance reduced: 4.63:1 on white, 4.29:1 on tint. Small text on light only. */
  --ink-900:   #14211A;
  --ink-600:   #4C5B52;
  --ink-400:   #8A968E;
  --line:      #E1E7E3;
  --white:     #FFFFFF;

  /* ACCESSIBILITY (computed 2026-09-07, WCAG 2.x relative luminance):
     green-700 on white 6.17:1, on green-050 5.72:1  -> body and link text OK.
     white on green-700 6.17:1, white on green-900 11.92:1 -> inverted text OK.
     gold-400 on green-900 6.07:1 -> gold text is allowed ONLY on green-900/green-800 grounds.
     gold-400 on white 1.96:1 -> never as text on light. Use gold-700 (4.63:1) for small gold text on light. */

  /* Type. Display face is thin geometric uppercase with wide tracking to echo the wordmark.
     Never set body copy in the display face. */
  --font-display: 'Jost', 'Josefin Sans', 'Futura', 'Avenir Next', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --track-display: 0.18em;

  /* Spacing and layout */
  --pad-x: 72px;
  --section-y: 104px;
  --maxw: 1440px;
  --radius: 4px;
}

@media (max-width: 860px) {
  :root { --pad-x: 24px; --section-y: 56px; }
}