.step-columns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  max-width: 1230px;
  margin: 3rem auto 4rem;
  padding: 0;
}

.step {
  flex: 1 1 calc(33.333% - 2rem);
  max-width: calc(33.333% - 2rem);
  background-color: #fff;
  padding: 3rem 2rem;
  box-shadow: 0 4px 8px -2px rgba(0, 0, 0, 0.12),
              0 2px 4px -1px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: all 0.3s ease;
  overflow: hidden;
  position: relative;
}

@keyframes synthGlow {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.30; }
}

.step-number {
  position: absolute;
  top: 0.5rem;
  left: 1rem;
  font-size: 14rem;
  font-weight: 900;
  color: rgba(200, 16, 46, 0.5);
  z-index: 0;
  pointer-events: none;
  user-select: none;
  line-height: 1;
  animation: synthGlow 4s ease-in-out infinite;
}

.step-content {
  position: relative;
  z-index: 1;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.step-content h3 {
  margin-top: 0;
  font-size: 1.75em;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.step-content p {
  font-size: 1.25em;
  line-height: 1.85;
  color: #292929;
  margin: 0;
}

/* Responsive Breakpoints */
@media (max-width: 1068px) {
  .step {
    flex: 1 1 calc(50% - 1.5rem);
    max-width: calc(50% - 1.5rem);
  }
}

@media (max-width: 600px) {
  .step {
    flex: 1 1 100%;
    max-width: 100%;
  }
}