/* IT content uses the existing site chrome and a quiet, readable journal layout. */

.ch-site #main-content { min-height: 65vh; }
.ch-site .eh-header { border-bottom: 1px solid var(--pc-hairline); }
.ch-site .eh-nav { gap: 23px; }
.ch-site .eh-footer { margin-top: 0; }

.ch-shell { width: min(100% - 112px, 1180px); margin-inline: auto; padding-bottom: 72px; }
.ch-breadcrumb { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; padding: 125px 0 31px; font-size: 11px; color: var(--pc-muted); overflow-wrap: anywhere; }
.ch-breadcrumb a:hover { text-decoration: underline; text-underline-offset: 4px; }
.ch-eyebrow { font: 11px/1.6 var(--pc-font-mono); letter-spacing: .055em; color: var(--pc-muted); }
.ch-heading { padding: 22px 0 45px; max-width: 860px; }
.ch-heading h1 { margin: 15px 0 22px; font-size: clamp(32px, 4vw, 48px); font-weight: 600; line-height: 1.5; letter-spacing: -.035em; overflow-wrap: anywhere; }
.ch-lead { max-width: 690px; color: var(--pc-muted); font-size: 15px; line-height: 2; }
.ch-collection-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 35px; border-block: 1px solid var(--pc-hairline); margin-bottom: 42px; }
.ch-collection-nav a { display: inline-flex; align-items: center; min-height: 58px; padding: 9px 0; font-size: 13px; color: var(--pc-muted); }
.ch-collection-nav a[aria-current="page"] { color: var(--pc-ink); box-shadow: inset 0 -2px var(--pc-ink); font-weight: 650; }
.ch-collection-nav a:hover { color: var(--pc-ink); }
.ch-search { margin: -16px 0 35px; }
.ch-search label { display: block; margin-bottom: 7px; font-size: 11px; color: var(--pc-muted); }
.ch-search > div { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.ch-search input { flex: 1 1 170px; max-width: 320px; min-width: 0; min-height: 44px; padding: 9px 12px; border: 1px solid var(--pc-hairline); border-radius: 2px; background: var(--pc-canvas); color: var(--pc-ink); font: inherit; font-size: 13px; }
.ch-search button { min-height: 44px; padding: 9px 17px; border: 1px solid var(--pc-ink); background: var(--pc-ink); color: var(--pc-canvas); border-radius: 2px; font-size: 12px; }
.ch-search a { display: inline-flex; align-items: center; min-height: 44px; font-size: 12px; text-decoration: underline; text-underline-offset: 4px; }
.ch-list-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 74px; }
.ch-entry { position: relative; min-width: 0; padding: 28px 0 30px; border-bottom: 1px solid var(--pc-hairline); }
.ch-entry:first-child { padding-top: 0; }
.ch-entry-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; color: var(--pc-muted); font-size: 11px; }
.ch-entry h2 { margin: 13px 0 12px; font-size: 23px; line-height: 1.65; }
.ch-entry h2 a { display: block; overflow-wrap: anywhere; }
.ch-entry h2 a:hover { text-decoration: underline; text-underline-offset: 5px; text-decoration-thickness: 1px; }
.ch-entry-arrow { display: inline-block; padding-left: 8px; font: 20px var(--pc-font-ui); }
.ch-entry-summary { color: var(--pc-muted); font-size: 13px; line-height: 2; overflow-wrap: anywhere; }
.ch-tags { display: flex; flex-wrap: wrap; gap: 7px; padding: 0; margin: 19px 0 0; list-style: none; }
.ch-tags li { padding: 2px 8px; background: var(--pc-surface); color: var(--pc-muted); font-size: 10px; border-radius: 2px; overflow-wrap: anywhere; }
.ch-list-aside { align-self: start; padding: 25px 0; border-top: 2px solid var(--pc-ink); }
.ch-list-aside h2,.ch-article-aside h2 { margin: 15px 0; font-size: 23px; line-height: 1.7; }
.ch-list-aside > p:not(.ch-eyebrow),.ch-article-aside > p:not(.ch-eyebrow) { margin-top: 14px; color: var(--pc-muted); font-size: 13px; line-height: 2; }
.ch-reading-steps { list-style: none; margin: 22px 0; padding: 0; }
.ch-reading-steps li { display: flex; gap: 12px; padding: 13px 0; border-top: 1px solid var(--pc-hairline); font-size: 11px; }
.ch-reading-steps span { font: 10px/2 var(--pc-font-mono); color: var(--pc-muted); }
.ch-list-aside .ch-small { font-size: 11px !important; }
.ch-text-link { display: inline-flex; align-items: center; gap: 16px; min-height: 44px; font-size: 12px; font-weight: 600; }
.ch-text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.ch-empty { padding: 28px 0 35px; }
.ch-empty h2 { margin: 16px 0; font-size: 26px; }
.ch-empty > p:not(.ch-eyebrow) { max-width: 590px; color: var(--pc-muted); font-size: 14px; line-height: 2; }
.ch-empty .ch-text-link { margin-top: 20px; }
.ch-legacy-heading { margin-top: 38px; padding-block: 24px; border-top: 1px solid var(--pc-hairline); }
.ch-legacy-heading h2 { font-size: 23px; }
.ch-legacy-heading p { margin-top: 8px; font-size: 12px; color: var(--pc-muted); }
.ch-preview-banner { display: flex; flex-wrap: wrap; align-items: center; gap: 9px 20px; padding: 17px 21px; border: 1px solid #8a6b37; background: #f9f0db; color: #49391e; font-size: 12px; }
.ch-preview-banner a { text-decoration: underline; text-underline-offset: 4px; }
.ch-preview-banner p { flex: 1 1 260px; }
.ch-status { display: inline-flex; align-items: center; padding: 2px 9px; border: 1px solid currentColor; border-radius: 2px; font-size: 10px; }
.ch-article-heading { max-width: 920px; padding-bottom: 34px; }
.ch-article-heading h1 { font-size: clamp(29px, 3.5vw, 43px); }
.ch-article-heading .ch-lead { max-width: 800px; }
.ch-article-meta { display: flex; flex-wrap: wrap; gap: 10px 29px; margin: 25px 0 0; }
.ch-article-meta > div { display: flex; flex-wrap: wrap; gap: 8px; font-size: 11px; }
.ch-article-meta dt { color: var(--pc-muted); }
.ch-article-meta dd { margin: 0; }
.ch-article-layout { display: grid; grid-template-columns: minmax(0, 800px) minmax(0, 230px); gap: 75px; align-items: start; padding-top: 35px; border-top: 1px solid var(--pc-hairline); }
.ch-article-main { min-width: 0; }
.ch-environment { padding: 19px 22px; margin-bottom: 38px; background: var(--pc-canvas); border-left: 2px solid #9475ac; }
.ch-environment h2 { font-size: 13px; margin: 0 0 8px; }
.ch-environment ul { display: flex; flex-wrap: wrap; gap: 5px 23px; margin: 0; padding: 0; list-style: none; font: 12px/1.8 var(--pc-font-mono); color: var(--pc-muted); }
.ch-article-aside { padding-top: 16px; }
.ch-article-aside h2 { font-size: 21px; }
.ch-article-aside .ch-text-link { margin-top: 15px; }
.ch-prose { font-size: 15px; line-height: 2.05; overflow-wrap: anywhere; }
.ch-prose > :first-child { margin-top: 0; }
.ch-prose .toc { margin: 28px 0 36px; padding: 20px 24px; border: 1px solid var(--pc-hairline); background: var(--pc-canvas); }
.ch-prose .toc ul { margin-bottom: 0; }
.ch-prose h2[id] { scroll-margin-top: 110px; }
.ch-prose p { margin: 20px 0; }
.ch-prose h2 { margin: 48px 0 20px; padding-bottom: 12px; border-bottom: 1px solid var(--pc-hairline); font-size: 26px; line-height: 1.6; scroll-margin-top: 28px; }
.ch-prose h3 { margin: 32px 0 15px; font-size: 20px; line-height: 1.7; }
.ch-prose h4 { margin: 27px 0 12px; font-size: 16px; }
.ch-prose a { color: #63417e; text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.ch-prose a:hover { color: var(--pc-deep); }
.ch-prose ul,.ch-prose ol { padding-left: 1.65em; margin: 18px 0; }
.ch-prose li { margin-block: 7px; padding-left: .15em; }
.ch-prose li > ul,.ch-prose li > ol { margin-block: 8px; }
.ch-prose code { font: .87em/1.7 var(--pc-font-mono); background: #e5deed; padding: 2px 5px; border-radius: 2px; overflow-wrap: anywhere; }
.ch-prose pre { width: 100%; max-width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; padding: 20px 22px; margin: 22px 0; background: #30263b; color: #f8f3ff; border-radius: 3px; white-space: pre; tab-size: 4; }
.ch-prose pre code { background: none; padding: 0; border-radius: 0; font-size: 12px; line-height: 1.9; overflow-wrap: normal; white-space: pre; }
.ch-prose table { display: block; width: max-content; max-width: 100%; overflow-x: auto; border-collapse: collapse; margin: 25px 0; font-size: 12px; line-height: 1.8; background: var(--pc-canvas); }
.ch-prose th,.ch-prose td { border: 1px solid var(--pc-hairline); padding: 11px 14px; text-align: left; min-width: 90px; }
.ch-prose th { background: var(--pc-surface); font-weight: 600; }
.ch-prose blockquote { margin: 24px 0; padding: 3px 20px; border-left: 3px solid #9475ac; color: var(--pc-muted); }
.ch-prose hr { margin: 36px 0; border: 0; border-top: 1px solid var(--pc-hairline); }
.ch-prose img { height: auto; max-width: 100%; margin-block: 24px; }
.ch-sources { padding-top: 29px; margin-top: 44px; border-top: 1px solid var(--pc-hairline); }
.ch-sources h2 { font-size: 19px; }
.ch-sources ul { padding-left: 1.35em; margin-block: 18px 0; }
.ch-sources li { padding-block: 5px; font-size: 12px; line-height: 1.9; overflow-wrap: anywhere; }
.ch-sources a { text-decoration: underline; text-underline-offset: 4px; }
.ch-sample-cta,.ch-material-cta { margin-top: 38px; padding: 30px; background: var(--pc-surface); }
.ch-sample-cta h2,.ch-material-cta h2 { margin: 10px 0 14px; font-size: 25px; line-height: 1.65; }
.ch-sample-cta > p:not(.ch-eyebrow),.ch-material-cta > p { font-size: 13px; line-height: 2; color: var(--pc-muted); }
.ch-material-cta { background: var(--pc-canvas); border: 1px solid var(--pc-hairline); }
.ch-material-cta .ch-status { margin-top: 20px; }
.ch-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; max-width: 100%; min-height: 49px; margin-top: 23px; padding: 11px 19px; background: var(--pc-ink); color: var(--pc-canvas) !important; border: 1px solid var(--pc-ink); border-radius: 3px; font-size: 12px; font-weight: 600; transition: background 150ms; }
.ch-button:hover { background: #4f3764; }
.ch-button-secondary { background: transparent; color: var(--pc-ink) !important; border-color: var(--pc-hairline); }
.ch-button-secondary:hover { background: var(--pc-surface); }
.ch-related { margin-top: 64px; padding-top: 35px; border-top: 1px solid var(--pc-hairline); }
.ch-section-heading h2 { margin-top: 10px; font-size: 27px; }
.ch-related-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 35px; margin-top: 32px; }
.ch-related-grid .ch-entry { padding-top: 0; }
.ch-related-grid .ch-entry h2 { font-size: 21px; }
.ch-back-link { margin-top: 35px; }
.ch-pagination { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 15px 25px; margin-top: 32px; font-size: 12px; }
.ch-pagination a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: underline; text-underline-offset: 4px; }
.ch-pagination > span { color: var(--pc-muted); }
.ch-it-hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .8fr); align-items: center; gap: 80px; padding: 33px 0 65px; }
.ch-it-hero h1 { font-size: clamp(36px, 4.3vw, 56px); font-weight: 600; line-height: 1.55; letter-spacing: -.045em; margin: 20px 0 23px; }
.ch-it-hero .ch-lead { max-width: 560px; }
.ch-it-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 5px; }
.ch-it-worknote { background: var(--pc-canvas); border: 1px solid var(--pc-hairline); border-radius: 3px; padding: 31px; }
.ch-it-worknote > .ch-eyebrow { padding-bottom: 17px; border-bottom: 1px solid var(--pc-hairline); }
.ch-it-worknote h2 { margin: 25px 0 20px; font-size: 27px; }
.ch-it-worknote dl { margin: 0; }
.ch-it-worknote dl > div { display: grid; grid-template-columns: 56px 1fr; gap: 17px; padding: 13px 0; border-top: 1px solid var(--pc-hairline); font-size: 12px; }
.ch-it-worknote dt { color: var(--pc-muted); }
.ch-it-worknote dd { margin: 0; }
.ch-it-worknote > p:last-child { margin-top: 19px; font-size: 11px; color: var(--pc-muted); }
.ch-it-section { border-top: 1px solid var(--pc-hairline); padding: 45px 0 57px; }
.ch-it-section .ch-section-heading { margin-bottom: 30px; }
.ch-it-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.ch-it-grid article { border-top: 2px solid var(--pc-ink); padding-top: 22px; }
.ch-it-grid h3 { margin: 15px 0; font-size: 24px; }
.ch-it-grid article > p:not(.ch-eyebrow) { font-size: 13px; color: var(--pc-muted); line-height: 2; }
.ch-it-grid .ch-text-link { margin-top: 20px; }
.ch-it-principles { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 65px; }
.ch-it-principles .ch-section-heading h2 { font-size: 30px; line-height: 1.7; }
.ch-it-principles > div:last-child > p { font-size: 14px; color: var(--pc-muted); line-height: 2; }
.ch-it-format { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 25px 0 0; }
.ch-it-format li { padding: 5px 11px; background: var(--pc-surface); font-size: 11px; }
@media (max-width: 1100px) {
    .ch-shell { width: calc(100% - 72px); }
    .ch-list-layout,.ch-article-layout { gap: 42px; }
    .ch-it-hero { gap: 36px; }
    .ch-site .eh-header { padding-inline: 30px; }
    .ch-site .eh-nav { gap: 18px; }
    .ch-site .eh-wordmark { font-size: 22px; }
}
@media (max-width: 850px) {
    .ch-shell { width: calc(100% - 40px); }
    .ch-list-layout { grid-template-columns: minmax(0, 1fr) 220px; gap: 32px; }
    .ch-article-layout { display: block; }
    .ch-article-aside { margin-top: 42px; padding-top: 25px; border-top: 1px solid var(--pc-hairline); max-width: 600px; }
    .ch-article-aside h2 br { display: none; }
    .ch-it-hero { gap: 28px; }
    .ch-it-worknote { padding: 22px; }
    .ch-it-worknote h2 { font-size: 24px; }
    .ch-it-grid { gap: 25px; }
    .ch-it-principles { gap: 32px; }
}
@media (max-width: 700px) {
    .ch-shell { padding-bottom: 45px; }
    .ch-breadcrumb { padding-top: 104px; padding-bottom: 18px; font-size: 10px; }
    .ch-heading { padding: 20px 0 32px; }
    .ch-heading h1 { margin-top: 13px; font-size: 31px; }
    .ch-lead { font-size: 14px; line-height: 1.95; }
    .ch-list-layout { display: block; }
    .ch-list-aside { margin-top: 42px; }
    .ch-collection-nav { margin-bottom: 30px; gap: 25px; }
    .ch-collection-nav a { min-height: 53px; font-size: 12px; }
    .ch-entry h2 { font-size: 21px; }
    .ch-entry-summary { font-size: 13px; }
    .ch-entry-meta { gap: 7px 14px; font-size: 10px; }
    .ch-article-heading h1 { font-size: 28px; line-height: 1.6; }
    .ch-article-meta { gap: 8px 19px; }
    .ch-article-meta > div { font-size: 10px; }
    .ch-article-layout { padding-top: 25px; }
    .ch-environment { padding: 17px; margin-bottom: 30px; }
    .ch-prose { font-size: 14px; }
    .ch-prose h2 { font-size: 23px; margin-top: 37px; }
    .ch-prose h3 { font-size: 19px; }
    .ch-prose pre { padding: 16px; }
    .ch-prose pre code { font-size: 11px; }
    .ch-prose th,.ch-prose td { padding: 9px 11px; }
    .ch-sample-cta,.ch-material-cta { padding: 23px 20px; }
    .ch-sample-cta h2,.ch-material-cta h2 { font-size: 22px; }
    .ch-button { gap: 15px; padding-inline: 15px; font-size: 11px; }
    .ch-related-grid { grid-template-columns: minmax(0, 1fr); gap: 27px; }
    .ch-related { margin-top: 43px; }
    .ch-preview-banner { padding: 14px 16px; }
    .ch-it-hero { grid-template-columns: minmax(0, 1fr); padding-top: 20px; padding-bottom: 42px; gap: 30px; }
    .ch-it-hero h1 { font-size: 38px; margin-block: 15px 20px; }
    .ch-it-worknote { padding: 24px; }
    .ch-it-worknote h2 { margin: 18px 0; }
    .ch-it-section { padding-block: 35px 40px; }
    .ch-it-grid { grid-template-columns: minmax(0, 1fr); gap: 27px; }
    .ch-it-grid h3 { font-size: 23px; margin-block: 12px; }
    .ch-it-grid .ch-text-link { margin-top: 11px; }
    .ch-it-principles { display: block; }
    .ch-it-principles .ch-section-heading h2 { font-size: 27px; }
}
@media (max-width: 360px) {
    .ch-shell { width: calc(100% - 32px); }
    .ch-site .eh-header { padding-inline: 16px; }
    .ch-heading h1 { font-size: 28px; }
    .ch-article-heading h1 { font-size: 25px; }
    .ch-it-hero h1 { font-size: 32px; }
    .ch-it-actions { gap: 0 12px; }
}
@media (prefers-reduced-motion: reduce) {
    .ch-button { transition: none; }
}