:root {
  --ink: #141923;
  --muted: #5b6472;
  --paper: #f6f7f2;
  --surface: #ffffff;
  --line: #dfe3dc;
  --blue: #1456e8;
  --navy: #10213f;
  --lime: #d9ff00;
  --coral: #ed6a4f;
  --max: 1180px;
  --measure: 780px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 17px/1.72 Arial, sans-serif;
  letter-spacing: 0;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1, h2, h3, .brand, .kicker, .eyebrow, .hero-meta, .btn, .btn-head, .toc {
  font-family: Arial, sans-serif;
  letter-spacing: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.96);
}
.site-header .bar {
  width: min(calc(100% - 40px), var(--max));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand { font-weight: 900; text-decoration: none; white-space: nowrap; }
.brand span { color: var(--blue); }
.site-header nav { display: flex; gap: 24px; margin-left: auto; }
.site-header nav a { color: #424b58; font-size: 14px; font-weight: 700; text-decoration: none; }
.site-header nav a:hover { color: var(--blue); }
.btn-head, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 6px;
  background: var(--lime);
  color: var(--ink);
  font-size: 14px;
  font-weight: 900;
  text-decoration: none;
}

.hero {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  padding: 76px 0 48px;
}
.eyebrow, .kicker {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.03;
}
.hero .lede {
  max-width: 820px;
  margin: 25px 0 0;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.55;
}
.hero-meta {
  margin: 22px 0 0;
  color: #727b86;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}
.hero-img {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}
.hero-img img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  border-radius: 6px;
}
.hero-img figcaption { margin-top: 10px; color: var(--muted); font-size: 13px; }
.article-image {
  margin: 0 0 82px;
}
.article-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
}

.layout {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  padding: 70px 0 110px;
  display: grid;
  grid-template-columns: 220px minmax(0, var(--measure));
  justify-content: space-between;
  gap: 60px;
}
.toc {
  position: sticky;
  top: 94px;
  align-self: start;
  display: grid;
  gap: 3px;
  padding: 18px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.toc strong { padding: 5px 10px 10px; text-transform: uppercase; }
.toc a {
  padding: 8px 10px;
  border-left: 2px solid transparent;
  color: var(--muted);
  text-decoration: none;
}
.toc a:hover { border-left-color: var(--blue); color: var(--blue); background: #edf2ff; }
.article { min-width: 0; }
.article section { margin-bottom: 82px; }
.article h2 { margin: 0 0 24px; font-size: 38px; line-height: 1.16; }
.article h3 { margin: 30px 0 8px; font-size: 21px; line-height: 1.3; }
.article p { margin: 0 0 17px; }
.lead { font-size: 23px; line-height: 1.62; }
.callout {
  margin-top: 30px;
  padding: 27px 28px;
  border-left: 6px solid var(--lime);
  background: var(--navy);
  color: #fff;
}
.callout p { margin: 8px 0 0; color: #dce3ef; }
blockquote {
  margin: 34px 0 0;
  padding: 25px 28px;
  border-left: 5px solid var(--coral);
  background: #fff1ed;
  font-size: 20px;
  font-weight: 700;
}
.criteria {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  border-top: 1px solid var(--line);
}
.criteria article {
  padding: 25px 26px 25px 0;
  border-bottom: 1px solid var(--line);
}
.criteria article:nth-child(even) { padding-left: 26px; border-left: 1px solid var(--line); }
.criteria span { color: var(--coral); font-size: 12px; font-weight: 900; }
.criteria h3 { margin-top: 7px; }
.criteria p { margin: 8px 0 0; color: var(--muted); font-size: 15px; }
.steps {
  list-style: none;
  counter-reset: steps;
  display: grid;
  gap: 12px;
  padding: 0;
}
.steps li {
  counter-increment: steps;
  padding: 19px 20px 19px 68px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  position: relative;
}
.steps li::before {
  content: counter(steps, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 17px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--lime);
  font-size: 11px;
  font-weight: 900;
}
.scenario-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
.scenario-grid article { padding: 22px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.scenario-grid h3 { margin-top: 0; }
.scenario-grid p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
.check {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 10px 24px;
  padding: 28px 28px 28px 48px;
  border: 1px solid #cfd9c8;
  border-radius: 6px;
  background: #edf3e7;
}
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { padding: 19px 2px; cursor: pointer; font-weight: 800; }
details p { padding: 0 34px 20px 2px; color: var(--muted); }
.sources { padding-left: 20px; }
.sources li { margin: 8px 0; }
.sources a { color: var(--blue); }
.note { padding-left: 15px; border-left: 3px solid var(--lime); color: var(--muted); font-size: 14px; }
.final-cta { padding: 36px; border-radius: 6px; background: var(--blue); color: #fff; }
.final-cta .kicker { color: var(--lime); }
.final-cta h2 { max-width: 620px; }
.final-cta p { color: #e2e9ff; }
.final-cta .btn { margin-top: 10px; }

footer { padding: 48px 24px; background: var(--navy); color: #fff; }
footer > div { width: min(100%, var(--max)); margin: 0 auto; }
footer p { color: #b9c3d2; }
footer a { color: #fff; }

@media (max-width: 900px) {
  .site-header nav { display: none; }
  .btn-head { margin-left: auto; }
  .layout { grid-template-columns: 1fr; gap: 32px; }
  .toc { position: static; display: flex; flex-wrap: wrap; }
  .toc strong { width: 100%; }
  .scenario-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .site-header .bar { width: min(calc(100% - 28px), var(--max)); gap: 12px; }
  .brand { font-size: 14px; }
  .btn-head { min-height: 38px; padding: 7px 10px; font-size: 12px; }
  .hero { width: min(calc(100% - 32px), var(--max)); padding: 46px 0 30px; }
  .hero h1 { font-size: 40px; }
  .hero .lede { font-size: 18px; }
  .hero-img { width: 100%; }
  .hero-img img { aspect-ratio: 4 / 3; border-radius: 0; }
  .hero-img figcaption { padding: 0 16px; }
  .layout { width: min(calc(100% - 32px), var(--max)); padding: 38px 0 76px; }
  .article section { margin-bottom: 62px; }
  .article-image { margin-bottom: 62px; }
  .article-image img { aspect-ratio: 4 / 3; }
  .article h2 { font-size: 30px; }
  .lead { font-size: 19px; }
  .criteria { grid-template-columns: 1fr; }
  .criteria article, .criteria article:nth-child(even) { padding: 22px 0; border-left: 0; }
  .check { grid-template-columns: 1fr; padding: 24px 22px 24px 42px; }
  .final-cta { padding: 28px 22px; }
}