.eco-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.eco-card {
  background: #ffffff;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-top: 8px solid var(--eco-accent, #999999);
  border-radius: 16px;
  padding: 1rem 1rem 0.95rem 1rem;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.eco-card h3 {
  margin-top: 0.15rem;
  margin-bottom: 0.45rem;
  font-size: 1.12rem;
  color: #111827;
}

.eco-card p {
  margin-bottom: 0.8rem;
  color: #374151;
  line-height: 1.55;
}

.eco-card ul {
  margin: 0.4rem 0 0 1.1rem;
  color: #374151;
}

.eco-card li {
  margin-bottom: 0.3rem;
}

.eco-code {
  display: inline-block;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--eco-accent) 18%, white);
  color: #1f2937;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.eco-details {
  margin-top: 0.9rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(17, 24, 39, 0.08);
}

.eco-details summary {
  cursor: pointer;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 0.75rem;
}

.eco-details[open] summary {
  margin-bottom: 0.85rem;
}

.eco-details p,
.eco-details li {
  font-size: 0.96rem;
}

@media (prefers-color-scheme: dark) {
  .eco-card {
    background: #16181d;
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
  }

  .eco-card h3,
  .eco-code,
  .eco-details summary {
    color: #f3f4f6;
  }

  .eco-card p,
  .eco-card ul,
  .eco-card li,
  .eco-details p,
  .eco-details li {
    color: #d1d5db;
  }

  .eco-code {
    background: color-mix(in srgb, var(--eco-accent) 24%, #111827);
  }

  .eco-details {
    border-top-color: rgba(255, 255, 255, 0.08);
  }
}