.card-glass {
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
}

/* Promo card — avoids dozens of missing purged Tailwind gradient utilities */
.promo-card-surface {
  background: linear-gradient(to bottom right, rgba(88, 28, 135, 0.45), rgba(0, 0, 0, 0.65));
}

.promo-radial-glow {
  background: radial-gradient(ellipse at top right, rgba(236, 72, 153, 0.18), transparent 55%);
}

.promo-headline-gradient {
  background: linear-gradient(to right, rgb(103, 232, 249), #fff 45%, rgb(253, 230, 138));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.promo-robot-bg {
  background: linear-gradient(to bottom right, rgba(96, 165, 250, 0.35), rgba(168, 85, 247, 0.35));
}