.carbon-tool {
  max-width: 1000px;
  margin: 0 auto;
}

.carbon-form {
  display: grid;
  gap: 16px;
}

.carbon-form .input-group {
  display: grid;
  gap: 8px;
}

.carbon-form label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.carbon-form input,
.carbon-form select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 12px 14px;
  font-size: 0.95rem;
}

.result-card {
  margin-top: 20px;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.result-header h2 {
  font-size: 1.1rem;
}

.result-header h2 span {
  color: var(--primary);
}

.status-ok {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #dcfce7;
  color: #166534;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.82rem;
  font-weight: 700;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--bg-secondary);
}

.metric-primary {
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
}

.metric-item .label {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 6px;
}

.metric-item .value {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.rating-value.rating-aplus,
.rating-value.rating-a {
  color: #16a34a;
}

.rating-value.rating-b {
  color: #ca8a04;
}

.rating-value.rating-c {
  color: #ea580c;
}

.rating-value.rating-d,
.rating-value.rating-f {
  color: #dc2626;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.sub-head {
  margin: 8px 0 12px;
  font-size: 1rem;
}

.equiv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px;
}

.equiv-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--bg-secondary);
}

.equiv-item .icon {
  font-size: 1.25rem;
  line-height: 1;
}

.eq-text {
  font-weight: 700;
  margin-bottom: 3px;
}

.eq-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.error-card h2 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: #dc2626;
}

.error-card p {
  color: var(--text-secondary);
}