.rules-grid-section {
  padding-top: 34px;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.rule-card {
  position: relative;
  min-height: 365px;
  padding: 26px 24px 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white-soft);
  box-shadow: 0 10px 28px rgba(32, 37, 45, 0.04);
}

.rule-card::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 13px;
  width: 42px;
  height: 1px;
  background: var(--copper);
  opacity: .55;
}

.rule-number {
  display: block;
  margin-bottom: 10px;
  color: var(--copper-dark);
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.rule-card h2 {
  margin: 0 0 16px;
  color: var(--navy);
  font-size: 28px;
  line-height: 1.12;
}

.rule-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.rule-card li {
  margin-bottom: 10px;
  font-size: 13px;
  line-height: 1.6;
}

.rule-card li:last-child {
  margin-bottom: 0;
}

.rule-card strong {
  color: var(--navy);
}

@media (max-width: 980px) {
  .rules-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .rules-grid {
    grid-template-columns: 1fr;
  }

  .rule-card {
    min-height: 0;
  }
}