:root {
  --dark: #0b0f1a;
  --dark-2: #121827;
  --paper: #f5f7fa;
  --white: #ffffff;
  --ink: #141a26;
  --muted: #626d7f;
  --line: #dce2ea;
  --line-dark: #283248;
  --green: #00b979;
  --green-dark: #087451;
  --mint: #e2f8f0;
  --coral: #f06455;
  --amber: #d69a19;
  --blue: #3e75c7;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(11, 15, 26, .96);
  border-bottom: 1px solid var(--line-dark);
}
.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  color: #f6f8fc;
  font-weight: 850;
  font-size: 18px;
  white-space: nowrap;
}
.brand span {
  display: inline-block;
  margin-right: 7px;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--green);
  color: #06100d;
}
.top-nav { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.top-nav a { color: #aab4c6; font-size: 14px; font-weight: 650; }
.top-nav a:hover, .top-nav a[aria-current="page"] { color: #fff; }
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 17px;
  border-radius: 7px;
  background: var(--green);
  color: #05110d;
  font-size: 14px;
  font-weight: 800;
}
.detail-hero, .collection-hero {
  background: var(--dark);
  color: #f7f9fc;
  border-bottom: 1px solid var(--line-dark);
}
.detail-hero { padding: 42px 0 70px; }
.collection-hero { padding: 42px 0 64px; }
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
  color: #8591a6;
  font-size: 13px;
}
.breadcrumbs a:hover { color: #fff; }
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 72px;
  align-items: center;
}
.eyebrow, .section-head > span, .cta-band .cta-layout > div > span {
  display: block;
  margin-bottom: 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}
h1, h2, h3, p { overflow-wrap: break-word; }
h1 {
  max-width: 820px;
  margin: 0 0 22px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08;
  letter-spacing: 0;
}
.hero-lead {
  max-width: 780px;
  margin: 0;
  color: #b4bed0;
  font-size: 19px;
  line-height: 1.65;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 26px;
  color: #8894a9;
  font-size: 13px;
}
.signal {
  min-height: 315px;
  padding: 24px;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background: var(--dark-2);
}
.signal-head { display: flex; justify-content: space-between; gap: 16px; color: #9ca8bb; font-size: 12px; }
.signal-head b { color: var(--green); }
.signal-chart {
  height: 142px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: end;
  gap: 9px;
  margin: 30px 0 12px;
  border-bottom: 1px solid #35415a;
}
.signal-chart span { display: block; background: var(--green); border-radius: 3px 3px 0 0; }
.signal-chart span:nth-child(2), .signal-chart span:nth-child(5) { background: var(--blue); }
.signal-chart span:nth-child(3) { background: var(--amber); }
.signal-chart span:nth-child(4) { background: var(--coral); }
.signal-labels { display: flex; justify-content: space-between; color: #7f8a9e; font-size: 11px; }
.signal p { margin: 22px 0 0; color: #d0d7e3; font-size: 14px; line-height: 1.5; }
.content-band { padding: 70px 0; background: var(--white); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 284px; gap: 70px; align-items: start; }
.article-body { min-width: 0; }
.article-body h2 {
  margin: 0 0 20px;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.22;
  letter-spacing: 0;
}
.article-body h3 { margin: 28px 0 12px; font-size: 21px; line-height: 1.3; }
.article-body p, .article-body li { font-size: 18px; }
.article-body p { margin: 0 0 18px; }
.article-body ul, .article-body ol { margin: 0; padding-left: 24px; }
.article-body li { margin-bottom: 10px; }
.editorial-meta {
  display: grid;
  grid-template-columns: 1fr 1.35fr .8fr;
  gap: 18px;
  margin-bottom: 34px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.editorial-meta div { min-width: 0; }
.editorial-meta span { display: block; margin-bottom: 3px; color: var(--muted); font-size: 12px; text-transform: uppercase; }
.editorial-meta a, .editorial-meta strong { display: block; font-size: 14px; line-height: 1.4; }
.editorial-meta a { color: var(--green-dark); font-weight: 800; }
.quick-answer {
  margin-bottom: 34px;
  padding: 28px;
  border-left: 5px solid var(--green);
  background: var(--mint);
}
.quick-answer h2 { font-size: 22px; }
.quick-answer ul { padding-left: 21px; }
.decision-panel {
  margin-bottom: 40px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.decision-panel > span, .deliverables > span, .calculator-head > span, .explainer-link > span {
  display: block;
  margin-bottom: 8px;
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}
.decision-panel h2 { font-size: 24px; }
.decision-panel dl { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 24px 0 0; }
.decision-panel dl div { padding-top: 14px; border-top: 1px solid var(--line); }
.decision-panel dt { color: var(--muted); font-size: 12px; }
.decision-panel dd { margin: 5px 0 0; font-size: 15px; font-weight: 750; }
.formula-box {
  margin-bottom: 54px;
  padding: 30px;
  border-radius: 8px;
  background: var(--dark);
  color: #f4f7fb;
}
.formula-box h2 { color: var(--green); font-size: 21px; }
.formula-box p { color: #d0d7e3; }
.formula-box .formula-note {
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
  color: #98a4b8;
  font-size: 15px;
}
.calculator {
  margin: 0 0 58px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}
.calculator-head h2 { margin-bottom: 10px; font-size: 27px; }
.calculator-head p { margin-bottom: 24px; color: var(--muted); font-size: 16px; }
.calculator-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-items: end;
}
.calculator-grid label { min-width: 0; }
.calculator-grid label span { display: block; min-height: 38px; margin-bottom: 7px; color: #4e596b; font-size: 13px; font-weight: 700; line-height: 1.35; }
.calculator-grid input, .calculator-grid select {
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid #cbd3df;
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
.calculator-grid input:focus, .calculator-grid select:focus { outline: 3px solid rgba(0, 185, 121, .18); border-color: var(--green); }
.calculator-grid button {
  min-height: 46px;
  padding: 0 18px;
  border: 0;
  border-radius: 6px;
  background: var(--green);
  color: #05110d;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}
.calculator-result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 18px;
  border: 1px solid var(--line);
  background: var(--line);
}
.calculator-result--single { grid-template-columns: 1fr; }
.calculator-result div { padding: 18px; background: #fff; }
.calculator-result span { display: block; color: var(--muted); font-size: 13px; }
.calculator-result strong { display: block; margin-top: 4px; color: var(--green-dark); font-size: 25px; }
.calculator-note { margin: 16px 0 0 !important; color: var(--muted); font-size: 14px !important; }
.content-section { scroll-margin-top: 96px; margin: 0 0 58px; }
.content-section strong { color: #0d6f4e; }
.data-table { max-width: 100%; overflow-x: auto; margin: 24px 0; border: 1px solid var(--line); }
table { width: 100%; min-width: 620px; border-collapse: collapse; background: #fff; }
th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #eef2f6; color: #465266; font-size: 13px; }
td { font-size: 15px; }
tbody tr:last-child td { border-bottom: 0; }
.article-side { position: sticky; top: 94px; display: grid; gap: 18px; }
.toc, .side-action { border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.toc { display: grid; padding: 22px; }
.toc b { margin-bottom: 12px; }
.toc a { padding: 9px 0; border-bottom: 1px solid var(--line); color: #5e697a; font-size: 13px; line-height: 1.4; }
.toc a:last-child { border-bottom: 0; }
.toc a:hover { color: var(--green-dark); }
.side-action { padding: 22px; background: var(--dark); color: #f7f9fc; border-color: var(--dark); }
.side-action p { margin: 8px 0 16px; color: #aeb8ca; font-size: 14px; }
.side-action a { display: block; padding: 11px 14px; border-radius: 6px; background: var(--green); color: #06110d; text-align: center; font-weight: 800; }
.solution-scope { margin-bottom: 42px; }
.solution-scope > div { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.solution-scope .scope-card { padding: 24px; border: 1px solid var(--line); border-top: 4px solid var(--green); border-radius: 8px; background: #fff; }
.solution-scope .scope-card:last-child { border-top-color: var(--amber); }
.solution-scope .scope-card span { color: var(--green-dark); font-size: 12px; font-weight: 850; text-transform: uppercase; }
.solution-scope .scope-card:last-child span { color: #8a5a00; }
.solution-scope .scope-card p { margin: 10px 0 0; font-size: 16px; }
.deliverables { margin-bottom: 44px; padding: 30px; border-radius: 8px; background: #eef2f6; }
.deliverables ol { display: grid; grid-template-columns: 1fr 1fr; gap: 0 30px; counter-reset: deliverable; padding: 0; list-style: none; }
.deliverables li { position: relative; min-height: 70px; margin: 0; padding: 18px 0 18px 44px; border-top: 1px solid #d5dce6; font-size: 15px; }
.deliverables li::before { counter-increment: deliverable; content: counter(deliverable); position: absolute; left: 0; top: 17px; color: var(--green-dark); font-weight: 850; }
.explainer-link { margin: 8px 0 52px; padding: 28px; border-left: 5px solid var(--blue); background: #eef4fc; }
.explainer-link h2 { font-size: 23px; }
.explainer-link p { color: var(--muted); font-size: 16px; }
.explainer-link a { color: #255fae; font-weight: 850; }
.faq-section { padding-top: 12px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 20px 34px 20px 0; cursor: pointer; font-size: 17px; font-weight: 750; }
.faq-list p { padding: 0 0 20px; color: var(--muted); font-size: 16px; }
.sources-section { margin-top: 54px; padding-top: 36px; border-top: 1px solid var(--line); }
.sources-section h2 { font-size: 25px; }
.sources-section > p { color: var(--muted); font-size: 15px; }
.sources-section ol { padding-left: 22px; }
.sources-section li { padding-left: 5px; font-size: 15px; }
.sources-section a { color: var(--green-dark); font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
.sources-section li span { display: block; color: var(--muted); font-size: 14px; }
.cta-band { padding: 58px 0; background: var(--dark-2); color: #f8fafc; border-top: 1px solid var(--line-dark); }
.cta-layout { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: center; }
.cta-layout h2 { max-width: 760px; margin: 0 0 12px; font-size: clamp(28px, 4vw, 42px); line-height: 1.15; }
.cta-layout p { max-width: 760px; margin: 0; color: #aeb8ca; font-size: 17px; }
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 7px;
  background: var(--green);
  color: #05110d;
  font-weight: 850;
  white-space: nowrap;
}
.related-section { padding: 66px 0 76px; background: var(--paper); }
.section-head { margin-bottom: 26px; }
.section-head h2 { margin: 0; font-size: clamp(26px, 4vw, 38px); line-height: 1.2; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related-card, .resource-card, .legacy-grid a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.related-card { padding: 22px; }
.related-card > span, .resource-card > span, .legacy-grid a > span {
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}
.related-card strong { display: block; margin: 9px 0; font-size: 18px; line-height: 1.35; }
.related-card p { margin: 0; color: var(--muted); font-size: 14px; }
.related-card:hover, .resource-card:hover, .legacy-grid a:hover { border-color: var(--green); }
.all-link { display: inline-block; margin-top: 26px; color: var(--green-dark); font-weight: 800; }
.site-footer { padding: 46px 0 24px; background: var(--dark); color: #a8b2c4; border-top: 1px solid var(--line-dark); }
.footer-grid { display: grid; grid-template-columns: 1.25fr .8fr 1fr; gap: 54px; }
.brand-footer { display: inline-block; margin-bottom: 15px; }
.footer-grid p { max-width: 430px; margin: 0; font-size: 14px; }
.footer-grid nav { display: grid; align-content: start; gap: 10px; font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--line-dark); color: #707d92; font-size: 13px; }
.collection-intro { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 80px; align-items: end; }
.collection-intro h1 { margin-bottom: 20px; }
.collection-intro p { max-width: 760px; margin: 0; color: #b5bfd1; font-size: 19px; }
.collection-facts {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 14px;
  padding: 24px;
  border-left: 3px solid var(--green);
  background: var(--dark-2);
}
.collection-facts strong { color: var(--green); font-size: 24px; line-height: 1.2; }
.collection-facts span { color: #aab4c6; font-size: 13px; }
.resource-search { display: block; max-width: 720px; margin-top: 38px; }
.resource-search span { display: block; margin-bottom: 8px; color: #aab4c6; font-size: 13px; font-weight: 700; }
.resource-search input {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid #39455d;
  border-radius: 7px;
  background: #111827;
  color: #fff;
  font: inherit;
}
.resource-search input:focus { outline: 3px solid rgba(0, 185, 121, .25); border-color: var(--green); }
.editorial-start { padding: 42px 0; background: #fff; border-bottom: 1px solid var(--line); }
.editorial-start-layout { display: grid; grid-template-columns: 300px 1fr; gap: 58px; align-items: start; }
.editorial-start-layout > div > span { color: var(--green-dark); font-size: 12px; font-weight: 850; text-transform: uppercase; }
.editorial-start-layout h2 { margin: 8px 0 0; font-size: 28px; line-height: 1.2; }
.editorial-start ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; border: 1px solid var(--line); }
.editorial-start li { margin: 0; border-right: 1px solid var(--line); }
.editorial-start li:last-child { border-right: 0; }
.editorial-start a { display: block; min-height: 138px; padding: 20px; }
.editorial-start strong { display: block; margin-bottom: 7px; font-size: 15px; line-height: 1.35; }
.editorial-start a span { color: var(--muted); font-size: 13px; }
.resource-section { padding: 70px 0; background: var(--paper); }
.resource-groups { display: grid; gap: 52px; }
.resource-group > h2 { margin: 0 0 18px; font-size: 24px; }
.resource-group[hidden] { display: none; }
.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.resource-card { min-height: 290px; padding: 24px; }
.resource-card h2 { margin: 12px 0 12px; font-size: 21px; line-height: 1.3; }
.resource-card p { margin: 0 0 24px; color: var(--muted); font-size: 15px; }
.resource-card b { display: block; margin-top: auto; color: var(--green-dark); font-size: 14px; }
.resource-card { display: flex; flex-direction: column; }
.resource-card[hidden] { display: none; }
.empty-state { padding: 28px; border: 1px solid var(--line); background: #fff; color: var(--muted); }
.case-strip { padding: 66px 0; background: #fff; }
.legacy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.legacy-grid a { padding: 26px; }
.legacy-grid strong { display: block; margin: 10px 0; font-size: 22px; }
.legacy-grid p { margin: 0; color: var(--muted); }
.solutions-hero { border-bottom: 4px solid var(--green); }
.solution-grid .resource-card { min-height: 270px; }
.process-band { padding: 64px 0; background: #fff; }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; border: 1px solid var(--line); }
.process-list li { min-height: 155px; padding: 24px; border-right: 1px solid var(--line); }
.process-list li:last-child { border-right: 0; }
.process-list b { display: block; margin-bottom: 8px; font-size: 18px; }
.process-list span { color: var(--muted); font-size: 14px; }
.methodology-content { padding: 72px 0; background: #fff; }
.methodology-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 72px; align-items: start; }
.methodology-layout article { min-width: 0; }
.methodology-layout article section { position: relative; margin-bottom: 58px; padding-left: 68px; }
.methodology-layout article section > span { position: absolute; left: 0; top: 2px; color: var(--green-dark); font-weight: 850; }
.methodology-layout article h2 { margin: 0 0 18px; font-size: 30px; line-height: 1.2; }
.methodology-layout article p, .methodology-layout article li { font-size: 18px; }
.methodology-layout article p { margin: 0 0 16px; }
.methodology-layout aside { position: sticky; top: 94px; padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.methodology-layout aside strong { display: block; font-size: 18px; }
.methodology-layout aside ul { margin: 16px 0 22px; padding-left: 20px; }
.methodology-layout aside li { margin-bottom: 9px; color: var(--muted); font-size: 14px; }
.methodology-layout aside a { display: block; padding: 11px 14px; border-radius: 6px; background: var(--green); color: #06110d; text-align: center; font-weight: 850; }
.metric-pixel { position: absolute; left: -9999px; }
@media (max-width: 960px) {
  .top-nav { display: none; }
  .header-cta { margin-left: auto; }
  .hero-layout, .collection-intro { grid-template-columns: 1fr; gap: 36px; }
  .signal { max-width: 520px; }
  .article-layout { grid-template-columns: 1fr; gap: 30px; }
  .article-side { position: static; }
  .toc { display: none; }
  .side-action { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px 20px; }
  .side-action p { margin: 0; }
  .side-action a { grid-column: 2; grid-row: 1 / span 2; min-width: 150px; }
  .calculator-grid { grid-template-columns: 1fr 1fr; }
  .resource-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li:nth-child(2) { border-right: 0; }
  .process-list li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .editorial-start-layout { grid-template-columns: 1fr; gap: 24px; }
  .methodology-layout { grid-template-columns: 1fr; gap: 30px; }
  .methodology-layout aside { position: static; }
}
@media (max-width: 700px) {
  .shell { width: calc(100% - 28px); }
  .header-inner { min-height: 62px; gap: 14px; }
  .brand { font-size: 15px; }
  .brand span { margin-right: 4px; padding: 3px 6px; }
  .header-cta { min-height: 38px; padding: 0 12px; font-size: 12px; }
  .detail-hero, .collection-hero { padding: 26px 0 44px; }
  .breadcrumbs { margin-bottom: 26px; }
  h1 { font-size: 32px; line-height: 1.14; }
  .hero-lead, .collection-intro p { font-size: 17px; }
  .signal { min-height: 280px; padding: 20px; }
  .content-band { padding: 46px 0; }
  .article-body p, .article-body li { font-size: 17px; }
  .editorial-meta { grid-template-columns: 1fr; gap: 13px; }
  .quick-answer, .formula-box { margin-left: 0; margin-right: 0; padding: 22px 18px; }
  .decision-panel, .calculator, .deliverables { padding: 22px 18px; }
  .decision-panel dl, .solution-scope > div, .deliverables ol { grid-template-columns: 1fr; }
  .calculator-grid { grid-template-columns: 1fr; }
  .calculator-grid label span { min-height: 0; }
  .calculator-result { grid-template-columns: 1fr; }
  .content-section { margin-bottom: 46px; }
  .article-body h2 { font-size: 26px; }
  .side-action { display: block; }
  .side-action p { margin: 8px 0 16px; }
  .cta-band { padding: 44px 0; }
  .cta-layout { grid-template-columns: 1fr; gap: 24px; }
  .cta-button { width: 100%; white-space: normal; text-align: center; }
  .related-section, .resource-section, .case-strip, .process-band { padding: 48px 0; }
  .resource-grid, .legacy-grid { grid-template-columns: 1fr; }
  .resource-card { min-height: 0; }
  .editorial-start ol { grid-template-columns: 1fr; }
  .editorial-start li { border-right: 0; border-bottom: 1px solid var(--line); }
  .editorial-start li:last-child { border-bottom: 0; }
  .editorial-start a { min-height: 0; }
  .collection-facts { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li, .process-list li:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .process-list li:last-child { border-bottom: 0; }
  .methodology-content { padding: 48px 0; }
  .methodology-layout article section { margin-bottom: 46px; padding-left: 0; padding-top: 35px; }
  .methodology-layout article section > span { top: 0; }
  .methodology-layout article h2 { font-size: 26px; }
  .methodology-layout article p, .methodology-layout article li { font-size: 17px; }
}