.border {
  border: 1px solid #dee2e6;
}

.border-thick {
  border-width: 3px;
}

.centered-figure {
  text-align: center;
}

.centered-figure img {
  display: inline-block;
}

.centered-caption {
  font-size: 0.9em;
  color: #666;
}

.attack-card {
  border-radius: 14px;
  border: 2px solid #d9d9d9;
  padding: 1rem 1.1rem;
  min-height: 10rem;
  text-align: center;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.poisoning-card {
  border-color: #9b2226;
  background: linear-gradient(180deg, #fff4f1 0%, #ffffff 100%);
}

.evasion-card {
  border-color: #005f73;
  background: linear-gradient(180deg, #eefafb 0%, #ffffff 100%);
}

.attack-card-formula {
  margin-top: 1.1rem;
  font-size: 1.2rem;
}

.pipeline-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin: 1.5rem 0 1rem 0;
}

.pipeline-box {
  min-width: 10rem;
  padding: 0.8rem 0.9rem;
  border: 2px solid #1d3557;
  border-radius: 14px;
  background: linear-gradient(180deg, #f3f7fb 0%, #ffffff 100%);
  text-align: center;
  box-shadow: 0 10px 24px rgba(29, 53, 87, 0.08);
}

.pipeline-title {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #1d3557;
}

.pipeline-math {
  margin-top: 0.3rem;
  font-size: 1.1rem;
}

.pipeline-arrow {
  font-size: 1.5rem;
  color: #9b2226;
}