.hero-glass {
  background: rgba(255, 255, 255, 0.06);      /* léger voile clair */
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);        /* Safari */
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
  padding: 32px 40px;
}