/* Proven Peptide — Elevation. The system is flat-on-canvas: depth comes from
   alternating band surfaces, not resting shadows. Cards lift only on press. */
:root {
  --elev-0: none;                              /* hero bands, footer, full-bleed sections */
  --elev-hairline-light: 1px solid var(--color-hairline-light);
  --elev-hairline-dark: 1px solid var(--color-hairline-dark);
  --elev-press: 0 4px 12px rgba(11, 22, 38, 0.16); /* active/pressed CTA, lifted card */
}