.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.summary-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 1px 2px rgba(23, 32, 26, 0.05); /* very subtle shadow */
}

.summary-card:hover {
  background-color: var(--surface);
  border-color: var(--green-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.summary-card.active {
  border-color: var(--green);
  background-color: var(--green-light);
  box-shadow: 0 0 0 1px var(--green);
}

.summary-card.attention {
  border-color: var(--orange);
}

.summary-card.critical {
  border-color: var(--critical);
}

.summary-card.high {
  border-color: var(--orange);
}

.s-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 8px;
}

.s-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--green); /* Total orders gets green number */
  line-height: 1;
}

.summary-card.critical .s-value {
  color: var(--critical); /* Red/Orange accent */
}

.summary-card.attention .s-value {
  color: var(--orange); /* Attention gets orange number */
}

.summary-card.high .s-value {
  color: var(--orange); 
}

.summary-card.active .s-value {
  color: var(--green);
}
.summary-card.active.attention .s-value {
  color: var(--orange);
}
.summary-card.active.high .s-value {
  color: var(--orange);
}
.summary-card.active.critical .s-value {
  color: var(--critical);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.app-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
}

.simulate-btn {
  background-color: #ffffff;
  color: var(--green);
  border: 1px solid #ffffff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.15s;
}

.simulate-btn:hover {
  background-color: var(--green-light);
}

/* Responsive */
@media (max-width: 768px) {
  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}