.guide-page {
  --guide-ink: #111821;
  --guide-blue: #14345b;
  --guide-cyan: #c7f0f2;
  min-height: 100vh;
  background: #f6f8fb;
  color: var(--guide-ink);
}

.guide-page .chrono-header {
  position: sticky;
  color: var(--guide-ink);
  background: rgba(246, 248, 251, .94);
  border-color: rgba(13, 20, 28, .12);
  backdrop-filter: blur(18px);
}

.guide-main { overflow: hidden; }

.guide-hero {
  position: relative;
  min-height: 680px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .44fr);
  gap: clamp(50px, 10vw, 160px);
  align-items: end;
  padding: clamp(90px, 11vw, 160px) var(--page-gutter) clamp(78px, 9vw, 130px);
  border-bottom: 1px solid var(--line);
}

.guide-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 7vw;
  width: min(36vw, 490px);
  height: min(36vw, 490px);
  border: 1px solid rgba(20, 52, 91, .17);
  border-radius: 50%;
}

.guide-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 38px;
  color: #5d6875;
  font-size: 11px;
}

.guide-breadcrumb a { text-underline-offset: 4px; }

.guide-hero h1 {
  max-width: 980px;
  margin: 0;
  font: 500 clamp(48px, 7.2vw, 108px)/1.08 var(--display);
  letter-spacing: -.065em;
}

.guide-hero .guide-lead {
  max-width: 40em;
  margin: 34px 0 0;
  color: #4f5c69;
  font-size: clamp(15px, 1.4vw, 19px);
}

.guide-meta {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
  padding: 28px 0 0;
  border-top: 1px solid var(--line);
}

.guide-meta div { display: grid; gap: 6px; }
.guide-meta dt { font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.guide-meta dd { margin: 0; font-size: 13px; }

.guide-index-hero { min-height: 590px; }
.guide-index-hero h1 { max-width: 860px; }

.guide-index-list {
  padding: 100px var(--page-gutter) 130px;
  background: #0c1b30;
  color: #fff;
}

.guide-index-list > p { margin: 0 0 36px; color: #8fdfea; font-size: 10px; font-weight: 800; letter-spacing: .16em; }

.guide-index-list article {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 28px;
  padding: 44px 0;
  border-top: 1px solid rgba(255, 255, 255, .2);
}

.guide-index-list article:last-child { border-bottom: 1px solid rgba(255, 255, 255, .2); }
.guide-index-list article > span { color: #8fdfea; font: 400 17px/1 var(--display); }
.guide-index-list h2 { margin: 0; font: 500 clamp(26px, 3.4vw, 52px)/1.25 var(--display); letter-spacing: -.045em; }
.guide-index-list article p { max-width: 48em; margin: 16px 0 0; color: rgba(255, 255, 255, .64); font-size: 14px; }
.guide-index-list article small { display: block; margin: 0 0 10px; color: #8fdfea; font-size: 8px; font-weight: 800; letter-spacing: .17em; }
.guide-index-list article a { align-self: center; font-size: 12px; font-weight: 800; text-underline-offset: 7px; }

.article-layout {
  display: grid;
  grid-template-columns: minmax(160px, .34fr) minmax(0, 760px) minmax(150px, .3fr);
  justify-content: space-between;
  gap: clamp(30px, 6vw, 96px);
  padding: clamp(84px, 10vw, 140px) var(--page-gutter);
}

.article-toc {
  align-self: start;
  position: sticky;
  top: 116px;
}

.article-toc p { margin: 0 0 16px; font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.article-toc ol { display: grid; gap: 13px; margin: 0; padding: 0; list-style: none; }
.article-toc a { color: #65717d; font-size: 11px; text-decoration: none; }
.article-toc a:hover { color: var(--guide-ink); text-decoration: underline; text-underline-offset: 5px; }

.article-body { min-width: 0; }
.article-body > p:first-child { margin-top: 0; font-size: clamp(18px, 2vw, 23px); line-height: 1.9; }
.article-body h2 { scroll-margin-top: 110px; margin: 100px 0 28px; font: 600 clamp(30px, 3.5vw, 48px)/1.35 var(--display); letter-spacing: -.045em; }
.article-body h3 { margin: 48px 0 16px; font: 600 clamp(20px, 2vw, 26px)/1.45 var(--display); letter-spacing: -.025em; }
.article-body p,
.article-body li { color: #303b47; font-size: 16px; line-height: 2; }
.article-body ul,
.article-body ol { padding-left: 1.4em; }
.article-body li + li { margin-top: 11px; }

.answer-box {
  margin: 42px 0 70px;
  padding: 32px 34px;
  border-left: 4px solid #2aa9bd;
  background: var(--guide-cyan);
}

.answer-box strong { display: block; margin-bottom: 8px; font-size: 18px; }
.answer-box p { margin: 0; }

.steps {
  margin: 42px 0 60px !important;
  padding: 0 !important;
  list-style: none;
  counter-reset: steps;
  border-top: 1px solid var(--line);
}

.steps li {
  position: relative;
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  counter-increment: steps;
}

.steps li::before {
  content: "0" counter(steps);
  color: #278da2;
  font: 400 24px/1.4 var(--display);
}

.article-note {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: #687380 !important;
  font-size: 12px !important;
}

.article-callout {
  margin: 36px 0;
  padding: 26px 28px;
  border: 1px solid rgba(20, 52, 91, .18);
  background: #eef3f8;
}

.article-callout strong { display: block; margin-bottom: 8px; font-size: 14px; }
.article-callout p { margin: 0; font-size: 14px; }

.check-list {
  margin: 34px 0 46px;
  padding: 0 !important;
  list-style: none;
  border-top: 1px solid var(--line);
}

.check-list li {
  position: relative;
  margin: 0 !important;
  padding: 18px 0 18px 34px;
  border-bottom: 1px solid var(--line);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 4px;
  color: #278da2;
  font-weight: 800;
}

.comparison-wrap {
  max-width: 100%;
  margin: 36px 0 50px;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  color: #303b47;
  font-size: 14px;
  line-height: 1.7;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison-table thead th { color: #66717e; font-size: 10px; letter-spacing: .08em; }
.comparison-table tbody th { width: 26%; color: var(--guide-ink); font-weight: 700; }
.comparison-table--facts { min-width: 0; }
.comparison-table--facts tbody th { width: 34%; }

.article-sources {
  margin-top: 90px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.article-sources h2 { margin: 0 0 18px; font-size: 20px; letter-spacing: -.02em; }
.article-sources ul { margin: 0; padding-left: 1.2em; }
.article-sources li { color: #66717e; font-size: 12px; line-height: 1.7; }
.article-sources a { text-underline-offset: 4px; overflow-wrap: anywhere; }

.article-aside {
  align-self: start;
  position: sticky;
  top: 116px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.article-aside span { font: 300 32px/1 var(--display); font-variant-numeric: tabular-nums; }
.article-aside strong { display: block; margin-top: 14px; font-size: 11px; letter-spacing: .1em; }
.article-aside p { margin: 12px 0 0; color: #66717e; font-size: 11px; }

.article-cta {
  margin-top: 100px;
  padding: 48px;
  background: #0c1b30;
  color: #fff;
}

.article-cta h2 { margin: 0 0 20px; color: #fff; font-size: clamp(30px, 3.8vw, 50px); }
.article-cta p { color: rgba(255, 255, 255, .68); }
.article-cta .primary-cta { margin-top: 28px; border-color: #fff; background: #fff; color: #0c1b30; }

.related-guides {
  padding: 90px var(--page-gutter) 110px;
  border-top: 1px solid var(--line);
  background: #eaf0f7;
}

.related-guides h2 { margin: 0 0 30px; font: 500 clamp(30px, 4vw, 54px)/1.2 var(--display); letter-spacing: -.045em; }
.related-guides nav { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.related-guides a { padding: 24px 18px 24px 0; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 700; text-underline-offset: 6px; }

@media (max-width: 960px) {
  .guide-hero { grid-template-columns: 1fr; min-height: auto; }
  .guide-hero::before { width: 300px; height: 300px; right: -80px; }
  .guide-meta { grid-template-columns: repeat(3, 1fr); }
  .article-layout { grid-template-columns: minmax(0, 760px) minmax(150px, .28fr); }
  .article-toc { display: none; }
}

@media (max-width: 760px) {
  .guide-page .chrono-header { position: sticky; }
  .guide-hero { padding-top: 90px; padding-bottom: 76px; }
  .guide-hero h1 { font-size: clamp(45px, 14vw, 66px); }
  .guide-hero .guide-lead { font-size: 15px; }
  .guide-meta { grid-template-columns: 1fr; gap: 14px; }
  .guide-meta div { grid-template-columns: 88px 1fr; align-items: baseline; }

  .guide-index-list { padding-top: 80px; padding-bottom: 90px; }
  .guide-index-list article { grid-template-columns: 38px 1fr; gap: 12px; padding: 32px 0; }
  .guide-index-list article a { grid-column: 2; }

  .article-layout { grid-template-columns: 1fr; padding-top: 72px; padding-bottom: 90px; }
  .article-aside { display: none; }
  .article-body > p:first-child { font-size: 18px; }
  .article-body h2 { margin-top: 76px; font-size: 31px; }
  .article-body p,
  .article-body li { font-size: 15px; }
  .answer-box { margin: 34px -4px 54px; padding: 26px 22px; }
  .steps li { grid-template-columns: 48px 1fr; }
  .article-cta { margin: 80px -20px 0; padding: 42px 20px 50px; }
  .article-callout { padding: 22px 20px; }
  .comparison-wrap { margin-right: -20px; }
  .comparison-wrap--facts { margin-right: 0; }

  .related-guides { padding-top: 72px; padding-bottom: 90px; }
  .related-guides nav { grid-template-columns: 1fr; }
}