.text-shadow-45 {
  /* 45°: offset-X = offset-Y per simulare 45° */
  text-shadow:
    8px 8px 16px rgba(0,0,0,0.7),
    16px 16px 32px rgba(0,0,0,0.7),
    32px 32px 64px rgba(0,0,0,0.7);
}