.method-main { padding-bottom: clamp(82px, 11vh, 132px); }
.method-hero { max-width: 850px; }

.method-choice-grid,
.method-explanation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.method-choice-card,
.method-explanation-card,
.limits-list li,
.method-callout {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.78);
}

.method-choice-card {
  min-height: 220px;
  padding: 26px;
  border-radius: 19px;
}

.method-card-tag {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--green-dark);
  background: var(--tint);
  font-size: 0.7rem;
  font-weight: 800;
}

.method-choice-card h3 {
  margin: 38px 0 11px;
  color: var(--ink);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  letter-spacing: -0.04em;
}

.method-choice-card p,
.method-explanation-card p,
.method-section-heading > p,
.method-callout p {
  color: var(--muted);
  line-height: 1.7;
}

.method-choice-card p { margin: 0; font-size: 0.92rem; }

.method-section-heading {
  display: grid;
  grid-template-columns: minmax(250px, 0.8fr) minmax(320px, 1.2fr);
  align-items: end;
  gap: 34px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.method-section-heading h2,
.method-callout h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.8rem, 3.4vw, 3rem);
  letter-spacing: -0.055em;
}

.method-section-heading > p { margin: 0; font-size: 0.94rem; }

#us-annual-note, #gb-monthly-note {
  max-width: 760px;
  margin: 20px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--ink);
  background: var(--tint);
  font-size: 0.88rem;
  line-height: 1.6;
}
.historical-source-link { display: inline-block; margin: 8px 0 18px; margin-inline-end: 18px; color: var(--green-dark); font-weight: 700; }
.ru-retail-panel {
  max-width: 780px;
  margin: 28px 0;
  padding: clamp(20px, 4vw, 30px);
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--tint);
}
.ru-retail-panel[hidden] { display: none; }
.ru-retail-panel h3 { margin: 0 0 12px; color: var(--ink); font-size: 1.18rem; }
.ru-retail-panel p { margin: 0 0 18px; color: var(--muted); line-height: 1.65; }
.ru-retail-selectors { display: flex; flex-wrap: wrap; gap: 12px; }
.ru-retail-selectors label { display: grid; gap: 7px; flex: 1 1 150px; color: var(--ink); font-size: 0.78rem; font-weight: 700; }
.ru-retail-selectors select {
  width: 100%; min-height: 44px; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 10px; color: var(--ink); background: #fff; font: inherit;
}
.ru-retail-selectors select:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }
#ru-retail-result { display: block; margin: 18px 0; color: var(--green-dark); font-size: 1.04rem; font-weight: 800; }
.ru-retail-panel #ru-retail-limit { margin-bottom: 8px; font-size: 0.82rem; }
.ru-retail-panel .historical-source-link { margin-bottom: 0; }
.method-explanation-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.method-explanation-card {
  min-width: 0;
  min-height: 250px;
  padding: 24px;
  border-radius: 18px;
}

.method-explanation-card h3 { margin: 0; font-size: 1rem; }
.method-explanation-card p { margin: 18px 0 0; font-size: 0.87rem; }

.formula {
  display: flex;
  min-height: 84px;
  align-items: center;
  margin-top: 22px;
  padding: 16px;
  border-radius: 13px;
  color: var(--green-dark);
  background: var(--tint);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: clamp(0.78rem, 1.2vw, 0.92rem);
  font-weight: 700;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.formula-card p { margin-top: 16px; }

.limits-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: method-limit;
}

.limits-list li {
  position: relative;
  min-height: 138px;
  padding: 24px 24px 24px 66px;
  border-radius: 16px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.7;
  counter-increment: method-limit;
}

.limits-list li::before {
  content: counter(method-limit, decimal-leading-zero);
  position: absolute;
  inset-block-start: 25px;
  inset-inline-start: 24px;
  color: #98a39a;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.method-callout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
  padding: clamp(26px, 5vw, 52px);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(232, 239, 230, 0.94), rgba(255, 255, 255, 0.84));
}

.method-callout p:not(.section-kicker) { max-width: 760px; margin: 16px 0 0; font-size: 0.92rem; }

.method-updates-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 17px;
  border-radius: 999px;
  color: #fff;
  background: var(--green);
  font-size: 0.78rem;
  font-weight: 750;
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
}

.method-updates-link:hover,
.method-updates-link:focus-visible { background: var(--green-dark); }

@media (max-width: 900px) {
  .method-explanation-grid { grid-template-columns: 1fr; }
  .method-explanation-card { min-height: 0; }
}

@media (max-width: 820px) {
  .method-section-heading { grid-template-columns: 1fr; gap: 12px; }
  .method-callout { grid-template-columns: 1fr; gap: 26px; }
  .method-updates-link { justify-self: start; }
}

@media (max-width: 680px) {
  .method-choice-grid,
  .limits-list { grid-template-columns: 1fr; }
  .method-choice-card { min-height: 0; padding: 22px; }
  .method-choice-card h3 { margin-top: 25px; }
  .method-explanation-card { padding: 20px; }
  .limits-list li { min-height: 0; padding: 20px 20px 20px 58px; }
  .limits-list li::before { inset-block-start: 21px; inset-inline-start: 20px; }
  .method-callout { padding: 24px 20px; }
  .method-updates-link { width: 100%; }
}

/* Compact reading layout, confined to the source/method page. */
.method-shell { padding: 20px clamp(18px,4vw,48px); }
.method-main { max-width: 980px; width: 100%; margin: 0 auto; padding-bottom: 40px; }
.method-shell .updates-hero { max-width: 720px; }
.method-shell .updates-hero h1 { font-size: clamp(28px,3vw,32px); line-height: 1.2; letter-spacing: -.035em; }
.method-shell .updates-intro { margin-top: 12px; font-size: 15px; line-height: 1.65; }
.method-shell .updates-kicker,.method-shell .section-kicker { font-size: 11px; margin-bottom: 8px; }
.method-shell .updates-section { margin-top: 32px; }
.method-shell .section-heading h2,.method-shell .method-section-heading h2,.method-shell .method-callout h2 { font-size: 20px; line-height: 1.3; letter-spacing: -.025em; }
.method-shell .section-heading > p,.method-shell .method-section-heading > p { font-size: 14px; line-height: 1.65; margin-top: 10px; }
.method-shell .method-section-heading { display:block; padding-bottom:14px; }
.method-shell .updates-badges { margin-top:14px; gap:6px; }
.method-shell .updates-badges > span { padding:4px 8px; font-size:11px; }
.method-shell .method-choice-grid,.method-shell .method-explanation-grid { gap:12px; margin-top:16px; }
.method-shell .method-choice-card,.method-shell .method-explanation-card { min-height:0; padding:16px; border-radius:10px; box-shadow:none; }
.method-shell .method-choice-card h3 { margin:12px 0 8px; font-size:17px; }
.method-shell .method-choice-card p,.method-shell .method-explanation-card p { font-size:14px; line-height:1.65; }
.method-shell .method-explanation-card h3 { font-size:15px; }
.method-shell .method-explanation-card p { margin-top:10px; }
.method-shell .formula { min-height:0; padding:12px; margin-top:12px; font-size:13px; }
.method-shell .limits-list { margin-top:16px; gap:10px; }
.method-shell .limits-list li { min-height:0; padding:14px 14px 14px 46px; border-radius:10px; font-size:14px; line-height:1.65; font-weight:400; }
.method-shell .limits-list li::before { inset-block-start:16px; inset-inline-start:16px; }
.method-shell .method-callout { padding:20px; gap:20px; border-radius:10px; }
.method-shell .method-callout p:not(.section-kicker) { font-size:14px; margin-top:10px; }
.method-country-detail { border-top:1px solid var(--border); padding:10px 0; }
.method-country-detail > summary,.method-other-countries > summary { cursor:pointer; color:var(--green-dark); font-size:17px; font-weight:650; padding:8px 0; min-height:40px; }
.method-other-countries { margin-top:16px; }
.method-other-countries > summary { font-size:15px; }
.method-country-detail [data-country-part] { padding:4px 0 8px; }
.method-country-detail h3 { font-size:14px; margin:12px 0 8px; }
.method-country-detail p,.method-country-detail a { font-size:14px; line-height:1.7; overflow-wrap:anywhere; }
.method-country-detail p { margin:8px 0 12px; }
.method-shell .historical-source-link { margin:4px 12px 8px 0; font-size:13px; font-weight:500; }
.method-country-detail #us-annual-note,.method-country-detail #gb-monthly-note { max-width:none; padding:0; border:0; background:none; color:var(--ink); font-size:14px; }
.method-shell summary:focus-visible { outline:2px solid var(--green); outline-offset:3px; }
@media(max-width:680px){
 .method-shell { padding:18px 18px 22px; }
 .method-main { padding-top:24px; }
 .method-shell .updates-section { margin-top:26px; }
 .method-shell .method-choice-card p,.method-shell .method-explanation-card p,.method-country-detail p,.method-shell .limits-list li { font-size:15px; }
 .method-shell .method-callout { padding:16px; }
}

.method-shell .method-main { padding-top:32px; }
.method-country-detail p { max-width:82ch; }
.method-note-paragraph { display:block; } .method-note-paragraph + .method-note-paragraph { margin-top:10px; }