.methodology-shell {
  max-width: 1120px;
}

.methodology-main {
  display: grid;
  gap: 22px;
}

.methodology-hero {
  display: grid;
  gap: 12px;
  padding: 34px;
  border: 1px solid rgba(23, 33, 43, 0.12);
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff, #eff7f5);
}

.methodology-hero h2 {
  max-width: 980px;
  margin: 0;
  color: #111827;
  font-size: clamp(2rem, 3.2vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.methodology-hero p:not(.eyebrow) {
  max-width: 820px;
  margin: 0;
  color: #475569;
  line-height: 1.8;
}

.methodology-section-head {
  display: grid;
  gap: 6px;
}

.methodology-section-head.standalone {
  padding: 0 4px;
}

.methodology-section-head h2 {
  margin: 0;
  color: #17212b;
  font-size: clamp(1.35rem, 2vw, 2rem);
}

.methodology-section-head p:not(.eyebrow) {
  max-width: 840px;
  margin: 0;
  color: #526171;
  line-height: 1.7;
}

.methodology-principles {
  display: grid;
  gap: 18px;
}

.methodology-principle-grid,
.methodology-list-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.methodology-list-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.methodology-principle-card,
.methodology-list-card {
  min-width: 0;
  padding: 16px;
  border: 1px solid rgba(23, 33, 43, 0.12);
  border-radius: 8px;
  background: #f8fbfb;
}

.methodology-principle-card > span {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 999px;
  background: #17212b;
  color: #f8fafc;
  font-weight: 900;
}

.methodology-principle-card h3,
.methodology-list-card h3 {
  margin: 12px 0 8px;
  color: #17212b;
  font-size: 1rem;
  line-height: 1.45;
}

.methodology-principle-card p,
.methodology-list-card li {
  margin: 0;
  color: #526171;
  line-height: 1.7;
}

.methodology-list-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 1.15rem;
}

.methodology-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.methodology-card,
.methodology-panel {
  border: 1px solid rgba(23, 33, 43, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 12px 30px rgba(33, 43, 54, 0.06);
}

.methodology-card {
  padding: 18px;
}

.methodology-card span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
}

.methodology-card.observed span {
  background: #e7f7f3;
  color: #0f766e;
}

.methodology-card.derived span {
  background: #eef2ff;
  color: #4338ca;
}

.methodology-card.estimated span {
  background: #fff7ed;
  color: #c2410c;
}

.methodology-card h3 {
  margin: 14px 0 8px;
  color: #17212b;
}

.methodology-card p,
.methodology-panel p {
  color: #526171;
  line-height: 1.7;
}

.methodology-panel {
  padding: 22px;
}

.methodology-panel h2 {
  margin-top: 0;
  color: #17212b;
}

.methodology-panel h3,
.methodology-panel strong {
  color: #17212b;
}

.methodology-table {
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1px solid rgba(23, 33, 43, 0.12);
  border-radius: 8px;
}

.methodology-table > div {
  display: grid;
  grid-template-columns: minmax(160px, 0.8fr) minmax(0, 1.2fr);
  border-top: 1px solid rgba(23, 33, 43, 0.1);
}

.methodology-table > div:first-child {
  border-top: 0;
  background: #17212b;
  color: #f8fafc;
}

.methodology-table strong,
.methodology-table span {
  padding: 12px;
  line-height: 1.55;
}

.methodology-table strong {
  color: #17212b;
}

.methodology-table span {
  color: #475569;
}

.methodology-table > div:first-child strong {
  color: #f8fafc;
}

.methodology-table span:first-child {
  color: #64748b;
}

.methodology-note {
  margin: 14px 0 0;
  padding: 12px 14px;
  border: 1px solid rgba(15, 118, 110, 0.22);
  border-radius: 8px;
  background: #eefbf8;
}

.methodology-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.methodology-link-row a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid rgba(15, 118, 110, 0.24);
  border-radius: 999px;
  background: #0f766e;
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 760px) {
  .methodology-grid,
  .methodology-principle-grid,
  .methodology-list-grid,
  .methodology-table > div {
    grid-template-columns: 1fr;
  }

  .methodology-hero {
    padding: 22px;
  }
}