@font-face {
  font-family: "Bricolage Grotesque";
  src: url("/assets/fonts/bricolage-grotesque-latin-variable.woff2") format("woff2");
  font-style: normal;
  font-weight: 600 800;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("/assets/fonts/instrument-sans-latin-variable.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

:root {
  --navy: #0a1a36;
  --navy-2: #122b52;
  --ink: #0d1b2a;
  --ink-2: #33465c;
  --muted: #63748a;
  --line: #e3e9f0;
  --line-2: #cbd6e2;
  --wash: #f5f8fc;
  --wash-2: #eaf1f9;
  --blue: #1857c4;
  --blue-dark: #10428f;
  --blue-wash: #e8f0fd;
  --gold: #c4881f;
  --green: #12795e;
  --display: "Bricolage Grotesque", -apple-system, "BlinkMacSystemFont", "Segoe UI", sans-serif;
  --ui: "Instrument Sans", -apple-system, "BlinkMacSystemFont", "Segoe UI", sans-serif;
  --number: ui-monospace, "SFMono-Regular", "SF Mono", "Menlo", "Consolas", monospace;
  --shell: min(1168px, calc(100vw - 48px));
  --radius: 14px;
  --shadow-1: 0 1px 2px rgba(13, 27, 42, 0.05);
  --shadow-2: 0 2px 4px rgba(13, 27, 42, 0.04), 0 12px 28px rgba(13, 27, 42, 0.07);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: var(--ui);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* stylelint-disable-next-line value-keyword-case */
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }

.skip-link {
  position: fixed;
  z-index: 10000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  background: #fff;
  color: var(--navy);
  font-weight: 700;
  transform: translateY(-170%);
}
.skip-link:focus { transform: translateY(0); }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.site-header .brand:focus-visible, .site-header .nav-link:focus-visible,
.site-header .button:focus-visible, .mobile-menu summary:focus-visible,
.site-footer a:focus-visible,
.resource-cta--article a:focus-visible { outline-color: #8fb6f0; }
.mobile-menu__panel a:focus-visible { outline-color: var(--blue); }

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  background: var(--navy);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.07);
}
.site-header__inner { min-height: 84px; display: flex; align-items: center; gap: 36px; }
.site-header nav { min-height: 84px; display: flex; flex: 1; align-items: center; gap: 30px; }
.brand { display: inline-flex; flex: none; align-items: center; gap: 10px; color: #fff; line-height: 1; text-decoration: none; }
.brand__mark { width: 42px; height: 41px; flex: none; object-fit: contain; }
.brand__name { color: #fff; font-family: var(--display); font-size: 19px; font-weight: 700; letter-spacing: -0.03em; white-space: nowrap; }
.brand__name b { color: #8fb6f0; font-weight: 700; }
.nav-link { position: relative; color: #c3d2e6; font-size: 14px; font-weight: 600; text-decoration: none; }
.nav-link:hover, .nav-link[aria-current="page"] { color: #fff; }
.nav-link[aria-current="page"]::after { content: ""; position: absolute; right: 0; bottom: -12px; left: 0; height: 2px; background: #8fb6f0; }
.mobile-menu { position: relative; display: none; }
.mobile-menu summary { padding: 8px 4px; color: #c3d2e6; font-size: 12px; font-weight: 700; cursor: pointer; list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary::after { content: "+"; margin-left: 5px; color: #8fb6f0; }
.mobile-menu[open] summary::after { content: "−"; }
.mobile-menu__panel { position: absolute; z-index: 20; top: calc(100% + 12px); right: 0; width: 180px; padding: 8px; border: 1px solid var(--line); border-radius: 10px; background: #fff; box-shadow: var(--shadow-2); }
.mobile-menu__panel a { display: block; padding: 10px 11px; border-radius: 7px; color: var(--ink-2); font-size: 13px; font-weight: 600; text-decoration: none; }
.mobile-menu__panel a:hover, .mobile-menu__panel a[aria-current="page"] { background: var(--blue-wash); color: var(--blue-dark); }

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 20px;
  border: 1px solid var(--blue);
  border-radius: 9px;
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}
.button:hover { border-color: var(--blue-dark); background: var(--blue-dark); transform: translateY(-1px); }
.button--small { min-height: 44px; margin-left: auto; border-color: #fff; background: #fff; color: var(--navy); font-size: 13px; }
.button--small:hover { border-color: #8fb6f0; background: #8fb6f0; color: var(--navy); }
.button__label-short { display: none; }

.eyebrow, .article-topic, .resource-card__topic {
  margin: 0;
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.11em;
  line-height: 1.4;
  text-transform: uppercase;
}

.resource-masthead {
  overflow: hidden;
  padding: 86px 0 82px;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(circle at 88% 18%, rgba(24, 87, 196, 0.12), transparent 25%), linear-gradient(180deg, #fff 0%, var(--wash) 100%);
}
.resource-masthead__inner { display: grid; grid-template-columns: minmax(0, 1fr) 330px; align-items: end; gap: 72px; }
.resource-masthead__copy { max-width: 760px; }
.resource-masthead h1, .article-header h1, .empty-state h1 { margin: 0; color: var(--ink); font-family: var(--display); font-weight: 800; letter-spacing: -0.045em; }
.resource-masthead h1 { max-width: 760px; margin-top: 13px; font-size: clamp(43px, 5.3vw, 68px); line-height: 0.98; }
.resource-masthead__dek { max-width: 670px; margin: 25px 0 0; color: var(--ink-2); font-size: 18px; line-height: 1.65; }
.resource-masthead__note { padding: 24px 24px 22px; border: 1px solid #c7dcfa; border-radius: var(--radius); background: var(--blue-wash); box-shadow: var(--shadow-1); }
.resource-masthead__note span { display: block; margin-bottom: 8px; color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
.resource-masthead__note strong { display: block; color: var(--ink); font-family: var(--display); font-size: 20px; font-weight: 700; letter-spacing: -0.025em; line-height: 1.3; }

.resource-feed { padding: 76px 0 104px; background: #fff; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
.section-heading h2, .resource-cta h2 { margin: 0; color: var(--ink); font-family: var(--display); font-size: 30px; font-weight: 800; letter-spacing: -0.035em; line-height: 1.15; }
.section-heading p { margin: 0; color: var(--muted); font-size: 14px; }
.resource-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; margin-top: 32px; }
.resource-card { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-1); transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease; }
.resource-card:hover { border-color: var(--line-2); box-shadow: var(--shadow-2); transform: translateY(-3px); }
.resource-card__link { height: 100%; display: flex; flex-direction: column; color: inherit; text-decoration: none; }
.resource-card--featured .resource-card__link { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.88fr); }
.resource-card__media { min-width: 0; overflow: hidden; background: var(--wash-2); }
.resource-card__image, .article-hero-image { overflow: hidden; }
.resource-card__image { height: 100%; min-height: 230px; aspect-ratio: 4 / 3; }
.resource-card__image img, .article-hero-image img { width: 100%; height: 100%; object-fit: cover; }
.resource-card__image img { transition: transform 260ms ease; }
.resource-card:hover .resource-card__image img { transform: scale(1.025); }
.resource-card__image--placeholder { display: grid; place-items: center; background: linear-gradient(145deg, rgba(24, 87, 196, 0.14) 0 46%, transparent 46%), repeating-linear-gradient(90deg, rgba(13, 27, 42, 0.05) 0 1px, transparent 1px 28px), var(--wash-2); }
.resource-card__image--placeholder span { width: 70px; height: 70px; display: grid; place-items: center; border-radius: 16px; background: var(--navy); color: #fff; font-family: var(--display); font-size: 21px; font-weight: 800; }
.resource-card__body { flex: 1; display: flex; flex-direction: column; padding: 25px 24px 22px; }
.resource-card--featured .resource-card__body { justify-content: center; padding: 46px 48px; }
.resource-card h2 { margin: 11px 0 12px; color: var(--ink); font-family: var(--display); font-size: 21px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.25; }
.resource-card--featured h2 { font-size: clamp(29px, 3.2vw, 40px); line-height: 1.1; }
.resource-card__excerpt { margin: 0 0 22px; color: var(--ink-2); font-size: 15px; line-height: 1.65; }
.resource-card--featured .resource-card__excerpt { font-size: 16px; }
.resource-card__meta { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: auto; padding-top: 17px; border-top: 1px solid var(--line); color: var(--muted); font-family: var(--number); font-size: 11px; }
.resource-card__read { color: var(--blue); font-family: var(--ui); font-size: 12px; font-weight: 700; white-space: nowrap; }
.resource-card__read span { display: inline-block; transition: transform 160ms ease; }
.resource-card:hover .resource-card__read span { transform: translateX(3px); }

.resource-cta { padding: 62px 0; border-top: 1px solid #c7dcfa; background: var(--blue-wash); }
.resource-cta__inner { display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.resource-cta h2 { max-width: 680px; font-size: 31px; }
.resource-cta .eyebrow { margin-bottom: 9px; }
.resource-cta__links { display: flex; flex-wrap: wrap; gap: 12px; }
.resource-calculator { padding: 64px 0; background: var(--wash); border-block: 1px solid var(--line); }
.resource-calculator h2 { font-family: var(--display); font-size: clamp(28px, 3vw, 38px); }
.resource-calculator p { max-width: 850px; line-height: 1.6; }
.resource-calculator label { display: grid; gap: 8px; font-size: 14px; }
.resource-calculator input, .resource-calculator select { box-sizing: border-box; width: 100%; min-height: 44px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: white; color: var(--ink); font: inherit; }
.resource-calculator select { max-width: 320px; }
.resource-calculator__inputs { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 20px; margin: 24px 0; }
.resource-calculator__results { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 16px; }
.resource-calculator__results p { padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: white; }
.resource-calculator__results strong { display: block; font-size: 26px; color: var(--blue-dark); }
.author-badge { display: inline-grid; place-items: center; width: 18px; height: 18px; margin-left: 6px; border-radius: 50%; background: var(--blue-dark); color: white; font-size: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

/* Resource library index */
.resource-index { overflow: hidden; }
.resource-proof { position: relative; overflow-x: auto; border-bottom: 1px solid var(--line); background: var(--wash-2); scrollbar-width: none; }
.resource-proof::-webkit-scrollbar { display: none; }
.resource-proof__track { width: max-content; display: flex; align-items: stretch; animation: resource-proof-scroll 42s linear infinite; will-change: transform; }
.resource-proof:hover .resource-proof__track { animation-play-state: paused; }
.resource-proof__group { width: max-content; min-width: 100vw; display: flex; flex: 0 0 auto; align-items: stretch; justify-content: center; }
.resource-proof__item { min-height: 48px; display: inline-flex; flex: 1 0 auto; align-items: center; justify-content: center; gap: 7px; padding: 0 25px; border-right: 1px solid var(--line-2); color: var(--ink-2); font-size: 12px; font-weight: 500; white-space: nowrap; }
.resource-proof__item:first-child { border-left: 1px solid var(--line-2); }
.resource-proof__item strong { color: var(--blue-dark); font-family: var(--number); font-size: 13px; }
@keyframes resource-proof-scroll { to { transform: translate3d(-50%, 0, 0); } }

.resource-lead { padding: 52px 0 58px; background: #fff; }
.resource-lead__grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.72fr); gap: clamp(36px, 5vw, 68px); align-items: start; }
.resource-lead__grid--solo { grid-template-columns: minmax(0, 800px); }
.resource-lead__story-link { display: block; color: inherit; text-decoration: none; }
.resource-lead__image { min-height: 310px; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--wash-2); box-shadow: var(--shadow-2); aspect-ratio: 16 / 9; }
.resource-lead__image img { width: 100%; height: 100%; object-fit: cover; transition: transform 260ms ease; }
.resource-lead__story-link:hover .resource-lead__image img { transform: scale(1.018); }
.resource-lead__copy { max-width: 700px; padding-top: 24px; }
.resource-lead__copy h1 { margin: 9px 0 14px; color: var(--ink); font-family: var(--display); font-size: clamp(34px, 4.3vw, 52px); font-weight: 800; letter-spacing: -0.045em; line-height: 1.02; }
.resource-lead__copy > p:not(.eyebrow) { max-width: 640px; margin: 0 0 18px; color: var(--ink-2); font-size: 17px; line-height: 1.65; }
.resource-lead__copy > span { color: var(--blue); font-size: 13px; font-weight: 700; }
.resource-lead__copy > span i { display: inline-block; margin-left: 4px; font-style: normal; transition: transform 160ms ease; }
.resource-lead__story-link:hover h1 { color: var(--blue-dark); }
.resource-lead__story-link:hover .resource-lead__copy > span i { transform: translateX(3px); }

.resource-latest { padding-top: 3px; }
.resource-latest__heading { display: flex; align-items: center; gap: 10px; padding-bottom: 15px; border-bottom: 2px solid var(--ink); }
.resource-latest__heading > span { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 7px; background: var(--blue); color: #fff; font-size: 13px; }
.resource-latest__heading h2 { margin: 0; font-family: var(--display); font-size: 22px; font-weight: 800; letter-spacing: -0.025em; }
.resource-latest__item { display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: 13px; align-items: start; padding: 20px 0; border-bottom: 1px solid var(--line); color: inherit; text-decoration: none; }
.resource-latest__number { padding-top: 2px; color: var(--blue); font-family: var(--number); font-size: 10px; font-weight: 700; }
.resource-latest__item em { display: block; margin-bottom: 5px; color: var(--blue); font-size: 9px; font-style: normal; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.resource-latest__item strong { display: block; color: var(--ink); font-size: 15px; line-height: 1.35; }
.resource-latest__item time { display: block; margin-top: 6px; color: var(--muted); font-family: var(--number); font-size: 9px; }
.resource-latest__item > i { padding-top: 19px; color: var(--blue); font-style: normal; transition: transform 160ms ease; }
.resource-latest__item:hover strong { color: var(--blue-dark); }
.resource-latest__item:hover > i { transform: translateX(3px); }

.resource-intro { padding: 54px 0; border-block: 1px solid var(--line); background: var(--wash); }
.resource-intro__inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(270px, 0.55fr); gap: 64px; align-items: end; }
.resource-intro h2, .resource-section-heading h2, .resource-method h2 { margin: 8px 0 0; color: var(--ink); font-family: var(--display); font-size: clamp(29px, 3.6vw, 41px); font-weight: 800; letter-spacing: -0.04em; line-height: 1.08; }
.resource-intro__inner > div > p:last-child { max-width: 660px; margin: 17px 0 0; color: var(--ink-2); font-size: 16px; line-height: 1.65; }
.resource-topic-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 9px; }
.resource-topic-nav a { padding: 8px 12px; border: 1px solid var(--line-2); border-radius: 999px; background: #fff; color: var(--ink-2); font-size: 12px; font-weight: 600; text-decoration: none; }
.resource-topic-nav a:hover { border-color: #a8c8f5; background: var(--blue-wash); color: var(--blue-dark); }

.resource-topic, .resource-contributors, .resource-method { padding: 68px 0 76px; }
.resource-topic--tint, .resource-method { border-block: 1px solid var(--line); background: var(--wash); }
.resource-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 29px; }
.resource-section-heading h2 { font-size: clamp(27px, 3vw, 36px); }
.resource-section-heading > a { color: var(--blue); font-size: 12px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.resource-section-heading > p { max-width: 430px; margin: 0; color: var(--muted); font-size: 14px; text-align: right; }
.resource-topic .resource-grid { margin-top: 0; }
.resource-index .resource-card { overflow: visible; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
.resource-index .resource-card:hover { border-color: transparent; box-shadow: none; transform: none; }
.resource-index .resource-card__media { overflow: visible; background: transparent; }
.resource-index .resource-card__image { min-height: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--wash-2); box-shadow: var(--shadow-1); aspect-ratio: 16 / 10; transition: transform 180ms ease, box-shadow 180ms ease; }
.resource-index .resource-card:hover .resource-card__image { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.resource-index .resource-card__body { padding: 17px 1px 0; }
.resource-index .resource-card h2 { margin: 8px 0 9px; font-family: var(--ui); font-size: 18px; font-weight: 700; letter-spacing: -0.018em; line-height: 1.32; }
.resource-index .resource-card:hover h2 { color: var(--blue-dark); }
.resource-index .resource-card__excerpt { margin-bottom: 17px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.resource-index .resource-card__meta { justify-content: flex-start; gap: 14px; padding-top: 13px; }
.resource-card__byline { min-width: 0; display: inline-flex; align-items: center; gap: 8px; }
.resource-card__byline > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.resource-card__avatar { width: 24px; height: 24px; flex: none; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; object-fit: cover; background: var(--blue-wash); color: var(--blue-dark); font-family: var(--ui); font-size: 8px; font-weight: 700; }
.resource-index .resource-card__read { margin-left: auto; }

.resource-contributors { background: #fff; }
.resource-contributor-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); box-shadow: var(--shadow-1); }
.resource-contributor { min-width: 0; display: grid; grid-template-columns: 60px minmax(0, 1fr); gap: 16px; padding: 25px; background: #fff; }
.resource-contributor__avatar { width: 60px; height: 60px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; object-fit: cover; background: var(--blue-wash); color: var(--blue-dark); font-family: var(--display); font-size: 15px; font-weight: 800; }
.resource-contributor h3 { margin: 0 0 3px; color: var(--ink); font-family: var(--display); font-size: 18px; font-weight: 700; letter-spacing: -0.025em; line-height: 1.2; }
.resource-contributor span { display: block; color: var(--blue); font-size: 10px; font-weight: 700; line-height: 1.45; }
.resource-contributor p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }

.resource-method__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 31px; border-top: 2px solid var(--ink); }
.resource-method__grid article { padding: 25px 25px 4px 0; }
.resource-method__grid article + article { padding-left: 25px; border-left: 1px solid var(--line-2); }
.resource-method__grid span { color: var(--blue); font-family: var(--number); font-size: 10px; font-weight: 700; }
.resource-method__grid h3 { margin: 9px 0 10px; color: var(--ink); font-size: 16px; line-height: 1.35; }
.resource-method__grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

.article-page { background: #fff; }
.article-breadcrumbs { padding-top: 25px; color: var(--muted); font-size: 13px; }
.article-breadcrumbs a { color: var(--muted); text-decoration: none; }
.article-breadcrumbs a:hover { color: var(--blue); }
.article-breadcrumbs span { margin-inline: 7px; }
.article-breadcrumbs span:last-child { margin: 0; }
.article-layout { display: grid; grid-template-columns: minmax(0, 44rem) 18.5rem; align-items: start; gap: 4rem; padding-top: 24px; padding-bottom: 78px; }
.article-main { min-width: 0; max-width: 44rem; }
.article-header { padding-bottom: 30px; }
.article-topic { margin-bottom: 10px; }
.article-header h1 { max-width: 44rem; font-size: clamp(32px, 4.3vw, 45px); line-height: 1.06; }
.article-header__dek { margin: 18px 0 20px; color: var(--ink-2); font-size: 17px; line-height: 1.75; }
.article-byline { display: flex; align-items: center; gap: 14px; padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.article-byline__avatar { width: 46px; height: 46px; display: grid; flex: none; place-items: center; border: 1px solid #c7dcfa; border-radius: 50%; background: var(--blue-wash); color: var(--blue-dark); font-family: var(--display); font-size: 14px; font-weight: 800; object-fit: cover; }
.article-byline__author { min-width: 0; flex: 1; color: var(--muted); font-size: 14px; line-height: 1.45; }
.article-byline__author strong { color: var(--ink); font-weight: 600; }
.article-byline__author small { display: block; color: var(--green); font-size: 12px; font-weight: 600; }
.article-byline__meta { display: flex; align-items: center; gap: 9px; color: var(--muted); font-family: var(--number); font-size: 11px; white-space: nowrap; }
.article-byline__meta i { font-style: normal; }
.tag-row { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-row--large { margin-top: 16px; }
.tag-row span { padding: 4px 8px; border: 1px solid var(--line); border-radius: 5px; background: var(--wash); color: var(--muted); font-size: 9px; font-weight: 700; letter-spacing: 0.08em; line-height: 1.3; text-transform: uppercase; }
.article-hero-image { margin: 0 0 30px; border: 1px solid var(--line); border-radius: 16px; aspect-ratio: 16 / 10; background: var(--wash-2); box-shadow: var(--shadow-2); }
.article-hero-image--placeholder { display: none; }

.article-rail { min-width: 0; position: sticky; top: 112px; max-height: calc(100vh - 144px); overflow-y: auto; }
.article-rail__card, .article-rail__cta { overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: var(--shadow-1); }
.article-rail__card { padding: 20px; }
.article-rail__card + .article-rail__card { margin-top: 20px; }
.article-toc h2, .article-author-card > h2, .article-related > h2, .article-rail__cta > span { display: block; margin: 0 0 12px; color: var(--muted); font-family: var(--ui); font-size: 10px; font-weight: 700; letter-spacing: 0.12em; line-height: 1.4; text-transform: uppercase; }
.article-toc--mobile { display: none; }
.article-toc ol { margin: 0; padding: 0; list-style: none; }
.article-toc li { margin: 0; }
.article-toc a { display: block; padding: 8px 11px; border-left: 2px solid var(--line); color: var(--ink-2); font-size: 13px; line-height: 1.35; text-decoration: none; }
.article-toc a:hover, .article-toc a[aria-current="true"] { border-left-color: var(--blue); background: var(--blue-wash); color: var(--blue-dark); font-weight: 600; }
.article-rail__cta { margin-top: 20px; padding: 21px; }
.article-rail__cta p { margin: 0 0 13px; color: var(--ink); font-family: var(--display); font-size: 17px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.35; }
.article-rail__cta a { color: var(--blue); font-size: 12px; font-weight: 700; text-decoration: none; }
.article-rail__cta a:hover { color: var(--blue-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-author-card__body { display: flex; align-items: flex-start; gap: 14px; }
.article-author-card__avatar { width: 48px; height: 48px; display: grid; flex: none; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: var(--blue-wash); color: var(--blue-dark); font-family: var(--display); font-size: 13px; font-weight: 800; object-fit: cover; }
.article-author-card__body strong { display: block; color: var(--ink); font-size: 14px; line-height: 1.4; }
.article-author-card__body span { display: block; margin-top: 2px; color: var(--blue-dark); font-size: 12px; line-height: 1.45; }
.article-author-card__body p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.article-related__items a { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); text-decoration: none; }
.article-related__items a:first-child { padding-top: 0; border-top: 0; }
.article-related__items img, .article-related__placeholder { width: 68px; height: 56px; display: grid; flex: none; place-items: center; border: 1px solid var(--line); border-radius: 8px; background: var(--blue-wash); color: var(--blue-dark); font-family: var(--display); font-size: 11px; font-weight: 800; object-fit: cover; }
.article-related__items span { min-width: 0; }
.article-related__items em { display: block; margin-bottom: 3px; color: var(--blue); font-size: 9px; font-style: normal; letter-spacing: 0.08em; line-height: 1.4; text-transform: uppercase; }
.article-related__items strong { display: block; color: var(--ink); font-size: 13px; font-weight: 600; line-height: 1.35; }
.article-related__items a:hover strong { color: var(--blue-dark); }

.article-body { min-width: 0; color: var(--ink-2); font-size: 1.04rem; line-height: 1.75; }
.article-body > :first-child { margin-top: 0; }
.article-summary { margin: 0 0 32px; padding: 25px 27px; border: 1px solid #c7dcfa; border-radius: 14px; background: var(--blue-wash); }
.article-body .article-summary__title { margin: 0 0 14px; padding: 0; border: 0; color: var(--blue-dark); font-family: var(--ui); font-size: 12px; font-weight: 700; letter-spacing: 0.13em; line-height: 1.4; text-transform: uppercase; }
.article-summary p { margin: 0 0 14px; color: var(--ink-2); font-size: 16px; line-height: 1.7; }
.article-summary p:last-child { margin-bottom: 0; }
.article-callout { margin: 0 0 32px; padding: 21px 24px; border: 1px solid #e3e9f0; border-radius: 12px; background: #f5f8fc; }
.article-body .article-callout h3 { margin: 0 0 7px; color: var(--blue-dark); font-family: var(--ui); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; line-height: 1.4; text-transform: none; }
.article-callout p { margin: 0; color: var(--ink-2); font-size: 16px; font-weight: 400; line-height: 1.65; }
.article-reviewers { display: grid; gap: 20px; margin: 4px 0 34px; }
.article-reviewer { display: flex; align-items: center; gap: 14px; }
.article-body .article-reviewer__avatar { width: 48px; height: 48px; display: grid; flex: none; place-items: center; margin: 0; border: 1px solid var(--line); border-radius: 50%; background: var(--blue-wash); box-shadow: none; color: var(--blue-dark); font-family: var(--display); font-size: 12px; font-weight: 800; object-fit: cover; }
.article-reviewer__body strong, .article-reviewer__body span { display: block; }
.article-reviewer__body strong { color: var(--ink); font-size: 15px; line-height: 1.35; }
.article-reviewer__body span { margin-top: 2px; color: var(--blue-dark); font-size: 13px; line-height: 1.45; }
.article-disclosure { margin: 34px 0 0; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.65; }
.article-jump-links { display: flex; flex-wrap: wrap; align-items: center; margin: 0 0 38px; font-size: 14px; line-height: 1.6; }
.article-jump-links a { color: var(--blue); font-weight: 600; }
.article-jump-links i { margin: 0 12px; color: var(--line-2); font-style: normal; }
.article-body h2, .article-body h3, .article-body h4 { color: var(--ink); font-family: var(--display); font-weight: 800; line-height: 1.2; scroll-margin-top: 112px; }
.article-body h2 { margin: 48px 0 17px; padding-top: 30px; border-top: 2px solid var(--ink); font-size: clamp(24px, 2.8vw, 29px); letter-spacing: -0.035em; }
.article-body h3 { margin: 36px 0 14px; font-size: 22px; letter-spacing: -0.025em; }
.article-body h4 { margin: 28px 0 12px; color: var(--blue-dark); font-family: var(--ui); font-size: 12px; letter-spacing: 0.09em; text-transform: uppercase; }
.article-body p, .article-body ul, .article-body ol, .article-body blockquote, .article-body table, .article-body pre { margin: 0 0 21px; }
.article-body strong { color: var(--ink); font-weight: 600; }
.article-body a { color: var(--blue); font-weight: 600; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article-body a:hover { color: var(--blue-dark); }
.article-body ul, .article-body ol { padding-left: 25px; }
.article-body li { padding-left: 4px; }
.article-body li + li { margin-top: 9px; }
.article-body ul li::marker { color: var(--blue); }
.article-body ol { padding: 0; list-style: none; counter-reset: article-step; }
.article-body ol > li { position: relative; min-height: 30px; padding: 0 0 20px 48px; counter-increment: article-step; }
.article-body ol > li::before { content: counter(article-step); position: absolute; top: 0; left: 0; width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid #c7dcfa; border-radius: 8px; background: var(--blue-wash); color: var(--blue-dark); font-family: var(--number); font-size: 11px; font-weight: 700; }
.article-steps strong, .article-steps span { display: block; }
.article-steps strong { margin-bottom: 4px; font-size: 16px; }
.article-steps span { color: var(--ink-2); font-size: 15px; line-height: 1.7; }
.article-body blockquote { padding: 20px 22px; border: 1px solid var(--line); border-left: 4px solid var(--gold); border-radius: 10px; background: var(--wash); color: var(--ink); font-family: var(--display); font-size: 20px; font-weight: 600; letter-spacing: -0.015em; line-height: 1.45; }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body img { width: auto; height: auto; margin: 32px auto; border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-1); }
.article-body figure { margin: 32px 0; }
.article-body figure img { margin-bottom: 10px; }
.article-body figcaption { color: var(--muted); font-size: 13px; line-height: 1.6; }
.article-table-scroll { overflow-x: auto; margin: 0 0 21px; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow-1); }
.article-table-scroll:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.article-body table { width: 100%; min-width: 560px; margin: 0; border-collapse: separate; border-spacing: 0; background: #fff; font-size: 14px; }
.article-body thead { background: var(--wash); color: var(--muted); }
.article-body th, .article-body td { min-width: 140px; padding: 13px 15px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.article-body th { color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.article-body td:first-child { color: var(--ink); font-weight: 600; }
.article-body tbody tr:last-child td { border-bottom: 0; }
.article-body tbody tr:hover { background: var(--wash); }
.article-body code, .article-body pre { font-family: var(--number); }
.article-body code { padding: 2px 5px; border-radius: 4px; background: var(--wash-2); color: var(--blue-dark); font-size: 0.9em; }
.article-body pre { overflow-x: auto; padding: 18px; border-radius: 12px; background: var(--navy); color: #e7eef9; font-size: 13px; line-height: 1.65; }
.article-body pre code { padding: 0; background: transparent; color: inherit; }
.article-faq { margin: 24px 0 0; border-top: 1px solid var(--line); }
.article-faq details { border-bottom: 1px solid var(--line); }
.article-faq summary { position: relative; padding: 18px 40px 18px 0; color: var(--ink); font-size: 16px; font-weight: 600; line-height: 1.45; cursor: pointer; list-style: none; }
.article-faq summary::-webkit-details-marker { display: none; }
.article-faq summary::after { content: ""; position: absolute; top: 22px; right: 8px; width: 8px; height: 8px; border-right: 2px solid var(--blue); border-bottom: 2px solid var(--blue); transform: rotate(45deg); transition: transform 0.2s ease; }
.article-faq details[open] summary::after { top: 26px; transform: rotate(-135deg); }
.article-faq__answer { padding: 0 0 20px; }
.article-faq__answer p:last-child { margin-bottom: 0; }

.article-endmark { display: flex; align-items: center; gap: 14px; margin-top: 46px; color: var(--blue); }
.article-endmark::before, .article-endmark::after { content: ""; height: 1px; flex: 1; background: var(--line); }
.article-endmark span { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid #c7dcfa; border-radius: 9px; background: var(--blue-wash); font-family: var(--display); font-size: 11px; font-weight: 800; }

.resource-cta--article { border-top-color: rgba(255, 255, 255, 0.1); background: var(--navy); color: #fff; }
.resource-cta--article .eyebrow { color: #8fb6f0; }
.resource-cta--article h2 { color: #fff; }
.resource-cta--article .button { border-color: #fff; background: #fff; color: var(--navy); }
.resource-cta--article .button:hover { border-color: #8fb6f0; background: #8fb6f0; }

.empty-state { min-height: 68vh; display: grid; place-items: center; padding: 100px 0; background: var(--wash); }
.empty-state__inner { max-width: 760px; text-align: center; }
.empty-state h1 { font-size: clamp(38px, 6vw, 58px); line-height: 1.04; }
.empty-state p:not(.eyebrow) { margin: 22px 0 30px; color: var(--muted); font-size: 18px; }

.site-footer { padding: 56px 0 34px; background: var(--navy); color: #a9bbd2; }
.site-footer__grid { display: grid; grid-template-columns: minmax(260px, 1.5fr) repeat(2, minmax(150px, 0.55fr)); gap: 56px; padding-bottom: 42px; }
.brand--footer { margin-bottom: 17px; }
.site-footer__brand p { max-width: 310px; margin: 0; color: #8fa3be; font-size: 14px; line-height: 1.65; }
.site-footer h2 { margin: 0 0 14px; color: #8fa3be; font-family: var(--ui); font-size: 10px; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; }
.site-footer nav { display: grid; gap: 9px; }
.site-footer nav a { color: #c3d2e6; font-size: 14px; text-decoration: none; }
.site-footer nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 24px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, 0.11); color: #8fa3be; font-size: 11px; }

@media (max-width: 1019px) {
  .resource-lead__grid { grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr); gap: 38px; }
  .resource-intro__inner { gap: 38px; }
  .resource-contributor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .resource-method__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .resource-method__grid article:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--line-2); }
  .resource-method__grid article:nth-child(4) { border-top: 1px solid var(--line-2); }
  .article-layout { grid-template-columns: minmax(0, 44rem); justify-content: center; gap: 28px; }
  .article-rail { display: none; }
  .article-toc--mobile { display: block; margin-bottom: 30px; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: var(--shadow-1); }
  .article-toc ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 36px, 1168px); }
  .site-header__inner, .site-header nav { min-height: 72px; }
  .site-header__inner { gap: 14px; }
  .brand__mark { width: 36px; height: 35px; }
  .brand__name { font-size: 17px; }
  .site-header nav { justify-content: flex-end; gap: 8px; }
  .nav-link { display: none; }
  .mobile-menu { display: block; }
  .button--small { min-height: 39px; padding: 9px 12px; font-size: 11px; }
  .resource-proof__group { justify-content: flex-start; }
  .resource-proof__item { padding-inline: 18px; }
  .resource-lead { padding: 30px 0 44px; }
  .resource-lead__grid { grid-template-columns: 1fr; gap: 42px; }
  .resource-lead__image { min-height: 0; border-radius: 14px; aspect-ratio: 16 / 10; }
  .resource-lead__copy { padding-top: 20px; }
  .resource-lead__copy h1 { font-size: clamp(33px, 10.5vw, 45px); }
  .resource-lead__copy > p:not(.eyebrow) { font-size: 16px; }
  .resource-latest__item { padding-block: 17px; }
  .resource-intro { padding: 44px 0; }
  .resource-intro__inner { grid-template-columns: 1fr; gap: 25px; }
  .resource-topic-nav { justify-content: flex-start; }
  .resource-topic, .resource-contributors, .resource-method { padding: 52px 0 58px; }
  .resource-section-heading { display: block; margin-bottom: 24px; }
  .resource-section-heading > a { display: inline-block; margin-top: 12px; }
  .resource-section-heading > p { margin-top: 11px; text-align: left; }
  .resource-index .resource-card__body { padding: 15px 1px 0; }
  .resource-index .resource-card h2 { font-size: 19px; }
  .resource-contributor-grid { grid-template-columns: 1fr; }
  .resource-contributor { padding: 21px; }
  .resource-method__grid { grid-template-columns: 1fr; }
  .resource-method__grid article, .resource-method__grid article + article { padding: 22px 0; border-left: 0; border-top: 1px solid var(--line-2); }
  .resource-method__grid article:first-child { border-top: 0; }
  .resource-masthead { padding: 58px 0 54px; }
  .resource-masthead__inner { grid-template-columns: 1fr; gap: 30px; }
  .resource-masthead h1 { font-size: clamp(38px, 12vw, 52px); line-height: 1; }
  .resource-masthead__dek { margin-top: 20px; font-size: 17px; }
  .resource-masthead__note { padding: 20px; }
  .resource-masthead__note strong { font-size: 18px; }
  .resource-feed { padding: 54px 0 72px; }
  .section-heading { display: block; }
  .section-heading h2 { font-size: 26px; }
  .section-heading p { margin-top: 5px; }
  .resource-card--featured .resource-card__link { display: flex; }
  .resource-card--featured .resource-card__body, .resource-card__body { padding: 25px 22px 22px; }
  .resource-card--featured h2, .resource-card h2 { font-size: 23px; }
  .resource-grid { grid-template-columns: 1fr; gap: 22px; margin-top: 22px; }
  .resource-cta { padding: 48px 0; }
  .resource-cta__inner { align-items: flex-start; flex-direction: column; gap: 26px; }
  .resource-cta h2 { font-size: 26px; }
  .article-breadcrumbs { padding-top: 18px; overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
  .article-layout { gap: 25px; padding-top: 18px; padding-bottom: 58px; }
  .article-header { padding-bottom: 24px; }
  .article-header h1 { font-size: 33px; line-height: 1.08; }
  .article-header__dek { margin-top: 15px; font-size: 16px; line-height: 1.65; }
  .article-byline { align-items: flex-start; flex-wrap: wrap; }
  .article-byline__author { padding-top: 2px; }
  .article-byline__meta { width: 100%; padding-left: 60px; }
  .article-hero-image { margin-bottom: 24px; border-radius: 12px; }
  .article-toc ol { grid-template-columns: 1fr; }
  .article-toc a { padding-block: 9px; }
  .article-body { font-size: 16px; }
  .article-summary { padding: 22px 20px; }
  .article-callout { padding: 19px 20px; }
  .article-jump-links { margin-bottom: 32px; }
  .article-body h2 { margin-top: 42px; font-size: 25px; }
  .article-body h3 { font-size: 21px; }
  .article-body blockquote { font-size: 18px; }
  .site-footer { padding-top: 46px; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px 24px; }
  .site-footer__brand { grid-column: 1 / -1; }
  .site-footer__bottom { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (max-width: 420px) {
  .brand__name { font-size: 15px; }
  .button__label-full { display: none; }
  .button__label-short { display: inline; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
  .resource-proof__track { animation: none; }
  .resource-proof__group[aria-hidden="true"] { display: none; }
}