.methodology-page { display: grid; padding-bottom: var(--space-12); }
.methodology-page * { min-width: 0; }
.methodology-page .breadcrumbs { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 3rem; font: .9rem var(--font-family-interface); color: var(--color-text-muted); }
.methodology-page .breadcrumbs a { color: inherit; }
.methodology-hero { display: grid; gap: 2.5rem; padding: 1rem 0 3rem; align-items: center; }
.methodology-hero__copy { display: grid; gap: 1.25rem; }
.methodology-hero h1 { font-size: clamp(2.65rem, 5.5vw, 5.5rem); line-height: 1.08; overflow-wrap: anywhere; }
.methodology-hero__intro { max-width: 36ch; font-size: clamp(1.2rem, 2vw, 1.65rem); line-height: 1.55; }
.methodology-hero__example { padding: clamp(1.25rem, 3vw, 2.5rem); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 1.25rem; box-shadow: 0 12px 30px rgb(20 30 40 / 4%); }
.methodology-hero__example-label { margin-bottom: 1.75rem; font: bold .7rem var(--font-family-interface); letter-spacing: .08em; text-transform: uppercase; color: var(--color-brand-red); }
.methodology-hero__calculation { display: grid; grid-template-columns: minmax(0, 1fr) 4rem minmax(0, 1fr); gap: 1rem; align-items: center; }
.methodology-hero__calculation span { display: grid; gap: .4rem; }
.methodology-hero__calculation small { font: .8rem var(--font-family-interface); color: var(--color-text-muted); }
.methodology-hero__calculation strong { font: clamp(1.8rem, 2.5vw, 2.6rem) var(--font-family-display); }
.methodology-hero__calculation > b {
  align-self: end;
  justify-self: center;
  margin-bottom: 0.25rem;
  color: var(--color-brand-navy);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--font-weight-regular);
  line-height: 1;
}
.methodology-hero__calculation > b:nth-of-type(2) { display: none; }
.methodology-hero__calculation .methodology-hero__result { grid-column: 1 / -1; padding: 1rem 1.25rem; border-left: 3px solid var(--color-brand-red); background: var(--color-brand-red-soft); color: var(--color-brand-red); }
.methodology-hero__caption { margin-top: 1.25rem; font-size: .95rem; line-height: 1.65; color: var(--color-text-muted); }
.methodology-reading { display: grid; gap: 1.5rem; padding: 2rem; border-block: 1px solid var(--color-border-strong); }
.methodology-reading article { display: grid; gap: .6rem; align-content: start; }
.methodology-reading span { color: var(--color-brand-red); font: bold .75rem var(--font-family-interface); }
.methodology-reading h2 { font-size: 1.5rem; }
.methodology-reading p { color: var(--color-text-muted); font-size: .95rem; }
.methodology-section { display: grid; gap: 2rem; padding: clamp(2.75rem, 5vw, 4.5rem) 0; border-bottom: 1px solid var(--color-border); scroll-margin-top: calc(var(--header-height) + 2rem); }
.methodology-heading { display: grid; gap: 1rem; align-content: start; }
.methodology-heading h2 { font-size: clamp(1.8rem, 2.8vw, 2.65rem); line-height: 1.15; }
.methodology-heading p:not(.eyebrow) { color: var(--color-text-muted); line-height: 1.7; }
.methodology-heading .eyebrow { font-size: .7rem; }
.methodology-journey__steps { display: grid; gap: 0; list-style: none; margin: 0; padding: 0; }
.methodology-journey__steps li { position: relative; display: grid; grid-template-columns: 2.5rem 1fr; gap: .5rem 1rem; padding-bottom: 1.5rem; }
.methodology-journey__steps li:not(:last-child)::before { content: ""; position: absolute; top: 2rem; bottom: 0; left: 1rem; border-left: 1px solid var(--color-border-strong); }
.methodology-journey__steps span { grid-row: span 2; display: grid; place-items: center; align-self: start; width: 2rem; height: 2rem; border-radius: 50%; background: var(--color-brand-red-soft); color: var(--color-brand-red); font: bold .7rem var(--font-family-interface); }
.methodology-journey__steps strong { font: 1.4rem var(--font-family-display); }
.methodology-journey__steps p { grid-column: 2; color: var(--color-text-muted); }
.concept-grid { display: grid; gap: 1rem; width: 100%; max-width: 72rem; margin: 0 auto; }
.concept-grid > div { display: grid; align-content: start; gap: .6rem; padding: 1.5rem; border: 1px solid var(--color-border); border-top: 3px solid var(--color-brand-red); border-radius: .7rem; background: var(--color-surface-strong); }
.concept-grid dt { font: 1.3rem var(--font-family-display); margin-bottom: .5rem; }
.concept-grid dd { margin: 0; color: var(--color-text-muted); line-height: 1.7; }
.methodology-sources { max-width: 72rem; grid-template-columns: 1fr; gap: 1rem; }
.methodology-sources > div { padding: 1.5rem; border: 1px solid var(--color-border); border-top: 3px solid var(--color-brand-red); border-radius: .7rem; background: var(--color-surface-strong); }
.quality-grid { display: grid; gap: 1rem; }
.quality-card { display: grid; align-content: start; gap: .85rem; padding: 1.5rem; border: 1px solid var(--color-border); border-radius: .8rem; background: var(--color-surface); }
.quality-card__icon { display: flex; align-items: center; min-height: var(--icon-size-large); overflow: visible; color: var(--color-brand-red); }
.quality-card__icon .icon { display: block; overflow: visible; }
.quality-card__type { color: var(--color-text-muted); font: bold .7rem var(--font-family-interface); text-transform: uppercase; letter-spacing: .08em; }
.quality-card h3 { font-size: 1.6rem; }
.quality-card p, .quality-card li { font-size: .95rem; }
.quality-card ul { margin: 0; padding-left: 1.1rem; }
.quality-card li + li { margin-top: .75rem; }
.reference-numbers { display: grid; gap: 1.25rem; }
.reference-numbers article { display: grid; grid-template-columns: 4rem 1fr; gap: .35rem 1rem; align-items: center; padding-bottom: 1rem; border-bottom: 1px solid var(--color-border); }
.reference-numbers strong { grid-row: span 2; color: var(--color-brand-red); font: 3rem var(--font-family-display); }
.reference-number--standard strong { grid-row: auto; }
.reference-numbers span { font: bold .95rem var(--font-family-interface); }
.reference-numbers small { color: var(--color-text-muted); }
.classification-block { display: grid; gap: 1rem; align-content: start; }
.classification-block h3 { font-size: 1.5rem; }
.classification-scales { display: grid; gap: 2rem; }
.classification-scale { display: grid; gap: .4rem; }
.classification-scale__item { overflow: hidden; border-radius: .35rem; font: .75rem var(--font-family-interface); color: var(--color-brand-navy); }
.classification-scale__item summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .85rem 1rem; cursor: pointer; list-style: none; }
.classification-scale__item summary::-webkit-details-marker { display: none; }
.classification-scale__item summary::after { content: "▾"; font-size: 1.15rem; line-height: 1; }
.classification-scale__item[open] summary::after { content: "▴"; }
.classification-scale__item summary span { font-weight: bold; font-size: .85rem; }
.classification-scale__item p { margin: 0; padding: 0 1rem 1rem 2.55rem; max-width: 52rem; line-height: 1.6; }
.classification-scale--thermal .classification-scale__item:nth-child(1) { background: var(--color-thermal-extremely-cool); color: #ffffff; }
.classification-scale--thermal .classification-scale__item:nth-child(2) { background: var(--color-thermal-very-cool); color: #ffffff; }
.classification-scale--thermal .classification-scale__item:nth-child(3) { background: var(--color-thermal-cool); }
.classification-scale--thermal .classification-scale__item:nth-child(4) { background: var(--color-climate-normal); }
.classification-scale--thermal .classification-scale__item:nth-child(5) { background: var(--color-thermal-warm); }
.classification-scale--thermal .classification-scale__item:nth-child(6) { background: var(--color-thermal-very-warm); }
.classification-scale--thermal .classification-scale__item:nth-child(7) { background: var(--color-thermal-extremely-warm); color: var(--color-climate-no-data); }
.classification-scale--precipitation .classification-scale__item:nth-child(1) { background: var(--color-precipitation-extremely-dry); color: var(--color-brand-navy); }
.classification-scale--precipitation .classification-scale__item:nth-child(2) { background: var(--color-precipitation-very-dry); }
.classification-scale--precipitation .classification-scale__item:nth-child(3) { background: var(--color-precipitation-dry); }
.classification-scale--precipitation .classification-scale__item:nth-child(4) { background: var(--color-climate-normal); }
.classification-scale--precipitation .classification-scale__item:nth-child(5) { background: var(--color-precipitation-wet); }
.classification-scale--precipitation .classification-scale__item:nth-child(6) { background: var(--color-precipitation-very-wet); color: var(--color-brand-navy); }
.classification-scale--precipitation .classification-scale__item:nth-child(7) { background: var(--color-precipitation-extremely-wet); color: #ffffff; }
@media (min-width: 48rem) {
  .methodology-reading { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem; }
  .quality-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .concept-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 75rem) {
  .concept-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 75rem) {
  .methodology-hero { grid-template-columns: 1.1fr 1fr; gap: 4rem; }
  .methodology-section { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); column-gap: clamp(3rem, 6vw, 6rem); }
  .methodology-section > .methodology-heading { grid-column: 1; grid-row: 1 / span 3; }
  .methodology-section > :not(.methodology-heading) { grid-column: 2; }
  .methodology-classification { grid-template-columns: 1fr; }
  .methodology-classification > .methodology-heading { grid-column: 1; grid-row: auto; max-width: 62rem; }
  .methodology-classification > .classification-scales { grid-column: 1; grid-row: auto; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3rem; }
  .methodology-concepts { grid-template-columns: 1fr; }
  .methodology-concepts > .methodology-heading { grid-column: 1; grid-row: auto; max-width: 62rem; }
  .methodology-concepts > .concept-grid { grid-column: 1; grid-row: auto; }
  .methodology-sources-section { grid-template-columns: 1fr; }
  .methodology-sources-section > .methodology-heading { grid-column: 1; grid-row: auto; max-width: 62rem; }
  .methodology-sources-section > .methodology-sources { grid-column: 1; grid-row: auto; grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 32rem) {
  .methodology-reading { padding-inline: 0; }
  .methodology-hero h1 { overflow-wrap: anywhere; }
  .classification-scale__item summary { gap: .5rem; padding: .75rem; }
  .classification-scale__item p { padding-inline: 2.3rem .75rem; }
}