.carbon-section {
  --carbon-green: var(--nexa-green, #00a651);
  --carbon-action: var(--nexa-action, #008547);
  --carbon-ink: var(--nexa-ink, #08131c);
  --carbon-muted: var(--nexa-muted, #56636a);
  --carbon-line: var(--nexa-line, #d9e2dd);
  background: #f8faf9;
  color: var(--carbon-ink);
  scroll-margin-top: calc(var(--nav-height, 72px) + 20px);
}
.carbon-inner { max-width: 1328px; margin-inline: auto; padding: 112px 64px 96px; }
.carbon-heading .eyebrow { color: var(--carbon-action); margin-bottom: 28px; }
.carbon-heading-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 64px; align-items: end; }
.carbon-heading h2 { margin: 0; font-size: clamp(2.5rem, 4.7vw, 4rem); line-height: 1.08; letter-spacing: -.055em; }
.carbon-heading h2 span { display: block; color: var(--carbon-action); }
.carbon-intro { margin: 0 0 3px; max-width: 470px; color: var(--carbon-muted); font-size: 1.0625rem; line-height: 1.75; }
.carbon-scenario-layout { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; margin-top: 60px; }
.carbon-scenarios, .carbon-visual, .carbon-panel { min-width: 0; }
.carbon-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-bottom: 1px solid var(--carbon-line); }
.carbon-tabs button { display: flex; align-items: center; justify-content: flex-start; gap: 10px; min-height: 58px; min-width: 0; padding: 14px 10px 15px 0; position: relative; color: var(--carbon-muted); font-size: .875rem; line-height: 1.4; text-align: left; transition: color .2s ease; }
.carbon-tabs button::after { content: ''; position: absolute; left: 0; right: 20px; bottom: -1px; height: 2px; background: var(--carbon-green); opacity: 0; transition: opacity .2s ease; }
.carbon-tab-number { font-size: .625rem; letter-spacing: .06em; }
.carbon-tabs button[aria-selected='true'] { color: var(--carbon-action); }
.carbon-tabs button[aria-selected='true']::after { opacity: 1; }
.carbon-tabs button:hover { color: var(--carbon-action); }
.carbon-panel-stack { display: grid; }
.carbon-panel { padding: 32px 0 4px; }
.carbon-scenario-name { margin: 0 0 16px; color: var(--carbon-action); font-size: .6875rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.carbon-panel h3 { max-width: 440px; margin: 0 0 22px; font-size: clamp(1.75rem, 2.8vw, 2.5rem); letter-spacing: -.045em; line-height: 1.18; }
.carbon-scenario-text { max-width: 440px; margin: 0; color: var(--carbon-muted); font-size: 1rem; line-height: 1.7; }
.carbon-tags { display: flex; flex-wrap: wrap; gap: 9px; list-style: none; margin: 30px 0 0; padding: 0; }
.carbon-tags li { padding: 8px 12px; border: 1px solid var(--carbon-line); border-radius: 4px; color: var(--carbon-action); background: #fff; font-size: .6875rem; line-height: 1.5; }
.js-ready .carbon-panel { grid-area: 1 / 1; opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(5px); transition: opacity .22s ease, transform .22s ease, visibility .22s; }
.js-ready .carbon-panel.is-active { opacity: 1; visibility: visible; pointer-events: auto; transform: none; }
.carbon-visual { margin: 0; padding: 22px 24px 20px; border: 1px solid var(--carbon-line); border-radius: 10px; background: #f5f7f7; overflow: hidden; }
.carbon-visual-label { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; color: var(--carbon-muted); font-size: .5625rem; line-height: 1.6; letter-spacing: .13em; }
.carbon-visual-label > span:first-child { color: var(--carbon-action); }
.carbon-forest { display: block; width: 100%; height: auto; aspect-ratio: 451 / 330; margin: 10px 0 12px; overflow: hidden; }
.carbon-visual figcaption { border-top: 1px solid var(--carbon-line); padding-top: 14px; display: grid; gap: 5px; color: var(--carbon-muted); font-size: .625rem; line-height: 1.65; }
.carbon-visual figcaption strong { font-size: .625rem; color: var(--carbon-ink); font-weight: 500; }
.carbon-pathway { margin-top: 64px; }
.carbon-pathway > h3 { margin: 0 0 24px; font-size: 1.25rem; line-height: 1.45; letter-spacing: -.025em; }
.carbon-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: start; gap: 24px; }
.carbon-step { min-width: 0; border-top: 1px solid var(--carbon-line); }
.carbon-step summary { display: grid; grid-template-columns: 1fr auto; column-gap: 14px; align-items: center; padding: 20px 0 15px; min-height: 100px; cursor: pointer; list-style: none; font-size: .9375rem; line-height: 1.4; }
.carbon-step summary::-webkit-details-marker { display: none; }
.carbon-step-number { grid-column: 1 / -1; color: var(--carbon-action); font-size: .625rem; letter-spacing: .1em; margin-bottom: 14px; }
.carbon-step-toggle { color: var(--carbon-action); font-size: 1.375rem; font-weight: 300; line-height: 1; transition: transform .2s ease; }
.carbon-step[open] .carbon-step-toggle { transform: rotate(45deg); }
.carbon-step summary:hover { color: var(--carbon-action); }
.carbon-step > p { margin: 0; padding-bottom: 12px; color: var(--carbon-muted); font-size: .8125rem; line-height: 1.7; }
.carbon-closing { margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--carbon-line); display: flex; justify-content: space-between; align-items: center; gap: 20px 32px; }
.carbon-closing > p { margin: 0; max-width: 590px; font-size: 1.125rem; line-height: 1.55; letter-spacing: -.02em; }
.carbon-cta { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 48px; padding: 13px 19px; border: 1px solid var(--carbon-action); border-radius: 5px; background: var(--carbon-action); color: #fff; font-size: .8125rem; line-height: 1.4; text-decoration: none; flex-shrink: 0; transition: background .2s ease, color .2s ease; }
.carbon-cta:hover { background: #fff; color: var(--carbon-action); }
.carbon-boundary { margin: 24px 0 0; max-width: 900px; color: var(--carbon-muted); font-size: .6875rem; line-height: 1.7; }
.carbon-section :is(button, a, summary, [tabindex]):focus-visible { outline: 2px solid var(--carbon-action); outline-offset: 5px; border-radius: 3px; }
html:not(.js-ready) .carbon-tabs { display: none; }
html:not(.js-ready) .carbon-panel + .carbon-panel { margin-top: 24px; border-top: 1px solid var(--carbon-line); }

@media (max-width: 1100px) {
  .carbon-inner { padding-inline: 40px; }
  .carbon-heading-grid, .carbon-scenario-layout { gap: 40px; }
  .carbon-tabs button { gap: 7px; font-size: .8125rem; }
  .carbon-steps { gap: 20px; }
}
@media (max-width: 850px) {
  .carbon-inner { padding: 80px 32px; }
  .carbon-heading-grid { grid-template-columns: 1fr; gap: 24px; }
  .carbon-intro { max-width: 620px; }
  .carbon-scenario-layout { grid-template-columns: 1fr; gap: 32px; margin-top: 40px; }
  .carbon-panel h3, .carbon-scenario-text { max-width: 620px; }
  .carbon-visual { width: 100%; max-width: 640px; justify-self: center; }
  .carbon-tabs button { gap: 10px; font-size: .875rem; }
  .carbon-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 32px; }
}
@media (max-width: 480px) {
  .carbon-inner { padding: 72px 24px; }
  .carbon-heading .eyebrow { margin-bottom: 20px; }
  .carbon-heading h2 { font-size: clamp(2rem, 8.5vw, 2.5rem); letter-spacing: -.045em; }
  .carbon-intro { font-size: 1rem; }
  .carbon-tabs button { flex-direction: column; align-items: flex-start; gap: 6px; font-size: .8125rem; min-height: 72px; }
  .carbon-tabs button::after { right: 12px; }
  .carbon-panel { padding-top: 28px; }
  .carbon-panel h3 { font-size: 1.75rem; margin-bottom: 18px; }
  .carbon-tags { gap: 7px; margin-top: 24px; }
  .carbon-tags li { font-size: .625rem; padding: 7px 10px; }
  .carbon-visual { padding: 16px 14px; }
  .carbon-visual-label { font-size: .5rem; }
  .carbon-forest { margin-block: 14px; }
  .carbon-pathway { margin-top: 44px; }
  .carbon-pathway > h3 { font-size: 1.125rem; }
  .carbon-steps { gap: 16px 20px; }
  .carbon-step summary { font-size: .875rem; padding-top: 17px; min-height: 92px; column-gap: 8px; }
  .carbon-step > p { font-size: .8125rem; }
  .carbon-closing { margin-top: 30px; align-items: flex-start; flex-direction: column; }
  .carbon-closing > p { font-size: 1rem; }
  .carbon-cta { flex-shrink: 1; max-width: 100%; }
}
.large-type .carbon-heading-grid, .large-type .carbon-scenario-layout { grid-template-columns: 1fr; }
.large-type .carbon-heading h2 { font-size: 2.25rem; }
.large-type .carbon-tabs button { flex-direction: column; align-items: flex-start; }
.large-type .carbon-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.large-type .carbon-closing { flex-wrap: wrap; }
.large-type .carbon-visual { max-width: 700px; justify-self: center; width: 100%; }
@media (max-width: 600px) {
  .large-type .carbon-steps { grid-template-columns: 1fr; }
  .large-type .carbon-tabs { grid-template-columns: 1fr; }
  .large-type .carbon-tabs button { flex-direction: row; align-items: baseline; }
  .large-type .carbon-heading h2 { font-size: 1.75rem; }
}
@media (prefers-reduced-motion: reduce) {
  .carbon-section *, .carbon-section *::after { transition: none !important; }
}