:root {
    --guide-night: var(--yf26-night);
    --guide-forest: var(--yf26-forest);
    --guide-paper: var(--yf26-paper);
    --guide-white: var(--yf26-white);
    --guide-ink: var(--yf26-ink);
    --guide-muted: var(--yf26-muted);
    --guide-mint: var(--yf26-mint);
    --guide-mint-soft: var(--yf26-mint-soft);
    --guide-gold: var(--yf26-gold);
    --guide-red: #d95c65;
    --guide-blue: #397ec1;
    --guide-line: rgba(16, 34, 30, .13);
    --guide-dark-line: rgba(226, 248, 239, .13);
}

.yf-public-page, .yf-public-page * { box-sizing: border-box; letter-spacing: 0; }
.yf-public-page { display: block; min-height: 100%; height: auto; margin: 0; overflow-x: hidden; overflow-y: auto; color: var(--guide-ink); background: var(--guide-paper); font-family: "Manrope", Arial, sans-serif; line-height: 1.65; }
.yf-public-page .yf-public-shell { margin-top: 0; overflow-x: clip; overflow-y: visible; }
.yf-public-page main a:not(.yf26-button) { color: inherit; text-decoration: none; }
.yf-guide button, .yf-guide input { font: inherit; }
.yf-guide-wrap { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.yf-guide-section { padding: clamp(72px, 8vw, 112px) 0; }
.yf-guide-eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0; color: var(--yf26-gold); font: 600 11px/1.4 "IBM Plex Mono", monospace; text-transform: uppercase; }
.yf-guide-eyebrow::before { width: 26px; height: 1px; background: currentColor; content: ""; }

.yf-guide-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(68px, 7vw, 94px) 0 clamp(68px, 7vw, 94px);
    color: #f1f8f4;
    background:
        radial-gradient(circle at 82% 28%, rgba(69, 180, 139, .16), transparent 28rem),
        radial-gradient(circle at 14% 88%, rgba(232, 200, 105, .09), transparent 26rem),
        var(--yf26-night);
}
.yf-guide-hero::after { position: absolute; inset: 0; opacity: .16; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(90deg, transparent 2%, #000 30%, #000 100%); content: ""; }
.yf-guide-hero__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(320px, .62fr); align-items: center; gap: clamp(48px, 7vw, 92px); }
.yf-guide-hero__copy { animation: yf26-rise .65s ease both; }
.yf-guide-breadcrumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; margin-bottom: 36px; color: rgba(230,243,237,.54); font-size: 12px; }
.yf-guide-breadcrumbs a:hover { color: var(--guide-mint); }
.yf-guide-breadcrumbs i { font-size: 9px; }
.yf-guide-hero h1 { max-width: 720px; margin: 20px 0 22px; color: #f7fbf8; font-size: clamp(46px, 5.3vw, 68px); line-height: 1.01; font-weight: 700; }
.yf-guide-lead { max-width: 650px; margin: 0; color: rgba(231,243,237,.7); font-size: 17px; line-height: 1.68; }
.yf-guide-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px; color: rgba(226,240,233,.58); font-size: 12px; }
.yf-guide-meta span { display: inline-flex; align-items: center; gap: 7px; }
.yf-guide-meta i { color: var(--guide-mint); }
.yf-guide-author { display: flex; align-items: center; gap: 12px; max-width: 650px; margin-top: 18px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.1); }
.yf-guide-author > i { color: var(--guide-mint); font-size: 25px; }
.yf-guide-author p { display: grid; gap: 3px; margin: 0; }
.yf-guide-author strong { color: rgba(244,250,247,.92); font-size: 13px; }
.yf-guide-author span { color: rgba(226,240,233,.55); font-size: 12px; line-height: 1.5; }
.yf-guide-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.yf-guide-button { flex: 0 0 auto; }
.yf-guide-hero__brief { padding: 28px; border: 1px solid rgba(101,217,174,.25); border-radius: 8px; background: rgba(255,255,255,.045); box-shadow: 0 30px 90px rgba(0,0,0,.22); }
.yf-guide-hero__brief > span { display: block; margin-bottom: 16px; color: rgba(226,240,233,.5); font: 700 11px/1.4 "IBM Plex Mono", monospace; text-transform: uppercase; }
.yf-guide-hero__brief > div { display: grid; grid-template-columns: 24px 1fr; gap: 10px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.09); }
.yf-guide-hero__brief i { color: var(--guide-mint); }
.yf-guide-hero__brief p { margin: 0; font-size: 14px; font-weight: 650; }
.yf-guide-hero__brief small { display: block; margin-top: 18px; color: rgba(226,240,233,.55); line-height: 1.6; }

.yf-guide-intro { background: var(--guide-white); }
.yf-guide-reading-grid { display: grid; grid-template-columns: 220px minmax(0, 790px); justify-content: space-between; gap: 70px; }
.yf-guide-toc { position: sticky; top: 96px; align-self: start; display: grid; border-top: 1px solid var(--guide-line); }
.yf-guide-toc strong { padding: 16px 0; font: 700 11px/1.3 "IBM Plex Mono", monospace; text-transform: uppercase; }
.yf-guide-toc a { padding: 9px 0; color: var(--guide-muted); font-size: 13px; transition: color .2s ease, transform .2s ease; }
.yf-guide-toc a:hover { color: #168565; transform: translateX(3px); }
.yf-guide-prose { min-width: 0; }
.yf-guide-kicker { margin: 0 0 30px; color: #168565 !important; font-weight: 750; }
.yf-guide-prose > p, .yf-guide-prose section > p { margin: 0 0 20px; color: #495a54; font-size: 17px; line-height: 1.8; }
.yf-guide-prose section { margin-top: 60px; }
.yf-guide-prose h2, .yf-guide-example h2, .yf-guide-method h2, .yf-guide-tool h2, .yf-guide-product h2, .yf-guide-two-columns h2, .yf-guide-steps-section h2, .yf-guide-faq-layout h2, .yf-guide-related-head h2, .yf-guide-catalog-controls h2, .yf-guide-pricing-section h2 { max-width: 760px; margin: 14px 0 22px; color: var(--guide-ink); font-size: clamp(38px, 4.5vw, 58px); font-weight: 700; line-height: 1.08; }
.yf-guide-example h2, .yf-guide-cta h2 { color: #f4faf7; }
.yf-guide-prose ul { display: grid; gap: 12px; margin: 24px 0; padding: 0; list-style: none; }
.yf-guide-prose li { position: relative; padding-left: 28px; color: #354841; }
.yf-guide-prose li::before { position: absolute; left: 0; color: #168565; font-weight: 800; content: "✓"; }

.yf-guide-example-section { color: #edf7f2; background: var(--guide-forest); }
.yf-guide-example { display: grid; grid-template-columns: minmax(0, .9fr) minmax(440px, 1.1fr); gap: 80px; align-items: center; }
.yf-guide-example > div:first-child > p:last-child { max-width: 570px; color: rgba(230,243,237,.65); font-size: 16px; }
.yf-guide-example__ledger { overflow: hidden; border: 1px solid var(--guide-dark-line); border-radius: 8px; background: rgba(255,255,255,.035); }
.yf-guide-example__ledger > div { display: flex; align-items: baseline; justify-content: space-between; gap: 28px; padding: 15px 20px; border-bottom: 1px solid var(--guide-dark-line); }
.yf-guide-example__ledger span { color: rgba(230,243,237,.62); font-size: 13px; }
.yf-guide-example__ledger strong { font-size: 18px; }
.yf-guide-example__ledger .positive { color: var(--guide-mint); }
.yf-guide-example__ledger .negative { color: #ff969c; }
.yf-guide-example__ledger > p { margin: 0; padding: 20px; color: #0b241d; background: linear-gradient(135deg, var(--guide-gold), var(--guide-mint)); font-weight: 750; }

.yf-guide-method { display: grid; grid-template-columns: minmax(0, 1fr) minmax(390px, .8fr); gap: 72px; align-items: center; }
.yf-guide-method > div:first-child > p:last-child { color: var(--guide-muted); font-size: 17px; }
.yf-guide-formula { display: grid; gap: 14px; padding: 30px; border: 1px solid var(--guide-line); border-radius: 8px; background: var(--guide-white); box-shadow: 0 20px 55px rgba(10,42,32,.08); }
.yf-guide-formula__label { margin: 0; color: #8c752d; font: 700 11px/1.3 "IBM Plex Mono", monospace; text-transform: uppercase; }
.yf-guide-formula code { display: block; padding: 18px; overflow-wrap: anywhere; color: #0b553f; background: #e6f5ef; font: 600 15px/1.7 "IBM Plex Mono", monospace; }
.yf-guide-formula__note { margin: 0; color: var(--guide-muted); font-size: 13px; line-height: 1.6; }

.yf-guide-tool-section { background: #e7eeea; }
.yf-guide-tool { display: grid; grid-template-columns: minmax(0, .8fr) minmax(520px, 1.2fr); gap: 72px; align-items: center; }
.yf-guide-tool__copy > p:not(.yf-guide-eyebrow) { color: var(--guide-muted); font-size: 17px; }
.yf-guide-tool__copy > small { display: flex; gap: 8px; margin-top: 24px; color: #64746e; }
.yf-guide-tool__copy > small i { color: #168565; }
.yf-guide-tool__workspace { width: 100%; min-width: 0; padding: 26px; border: 1px solid var(--guide-line); border-radius: 8px; background: var(--guide-white); box-shadow: 0 24px 65px rgba(8,35,27,.1); }
.yf-guide-tool__workspace form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.yf-guide-tool__workspace label > span { display: block; margin-bottom: 7px; color: #5f706a; font-size: 12px; font-weight: 650; }
.yf-guide-tool__workspace label > div { display: flex; align-items: center; min-height: 46px; border: 1px solid var(--guide-line); border-radius: 6px; background: #fff; }
.yf-guide-tool__workspace input { width: 100%; min-width: 0; padding: 11px 13px; border: 0; outline: 0; color: var(--guide-ink); background: transparent; font-weight: 700; }
.yf-guide-tool__workspace label small { padding-right: 12px; color: #7b8984; white-space: nowrap; }
.yf-guide-tool__result { margin-top: 18px; padding: 22px; border-left: 3px solid var(--guide-mint); background: #edf7f3; }
.yf-guide-tool__result span { display: block; color: #62736d; font-size: 12px; }
.yf-guide-tool__result strong { display: block; margin-top: 4px; color: #087352; font-size: 32px; }
.yf-guide-tool__result strong.is-negative { color: var(--guide-red); }
.yf-guide-tool__result p { margin: 8px 0 0; color: #52635d; font-size: 13px; }
.yf-guide-tool__workspace > a { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; color: #0a6d51; font-size: 13px; font-weight: 750; }
.yf-guide-flow { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.yf-guide-flow button, .yf-guide-flow > div { min-width: 0; min-height: 150px; padding: 22px; border: 1px solid var(--guide-line); border-radius: 6px; text-align: left; }
.yf-guide-flow button { display: flex; flex-direction: column; justify-content: space-between; color: #f8fcfa; background: var(--guide-forest); cursor: pointer; }
.yf-guide-flow button i { color: #50b8f2; font-size: 27px; }
.yf-guide-flow button.is-sent { border-color: var(--guide-mint); }
.yf-guide-flow > div { display: flex; flex-direction: column; justify-content: center; background: #eef4f1; }
.yf-guide-flow > div span { color: #77847f; font-size: 12px; }
.yf-guide-flow > div strong { margin-top: 8px; }
.yf-guide-flow > div small { margin-top: 8px; color: #168565; }
.yf-guide-flow button:focus-visible { outline: 3px solid rgba(43, 150, 114, .25); outline-offset: 3px; }
.yf-guide-flow [data-flow-output] { transition: border-color .18s ease, background-color .18s ease; }
.yf-guide-flow [data-flow-output].is-complete { border-color: #92cdb7; background: #e7f5ef; }

.yf-guide-product-section { background: var(--guide-white); }
.yf-guide-product { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(340px, .8fr); align-items: center; gap: 72px; }
.yf-guide-product__media { overflow: hidden; border: 1px solid var(--guide-line); border-radius: 8px; box-shadow: 0 28px 70px rgba(10,42,32,.12); }
.yf-guide-product__media img { display: block; width: 100%; height: auto; aspect-ratio: 1350 / 580; object-fit: contain; background: #eef3f1; }
.yf-guide-product > div:last-child > p:not(.yf-guide-eyebrow) { color: var(--guide-muted); font-size: 16px; }
.yf-guide-product ul { display: grid; gap: 10px; padding: 0; list-style: none; }
.yf-guide-product li { display: flex; gap: 10px; }
.yf-guide-product li i { color: #168565; }

.yf-guide-two-columns > .yf-guide-wrap { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.yf-guide-mistakes { border-top: 1px solid var(--guide-line); }
.yf-guide-mistakes article { display: grid; grid-template-columns: 25px 1fr; gap: 14px; padding: 22px 0; border-bottom: 1px solid var(--guide-line); }
.yf-guide-mistakes article > i { color: var(--guide-red); }
.yf-guide-mistakes h3 { margin: 0; font-size: 18px; }
.yf-guide-mistakes p { margin: 6px 0 0; color: var(--guide-muted); }
.yf-guide-steps-section { color: #edf7f2; background: var(--guide-night); }
.yf-guide-steps-section h2 { color: #f1f8f4; }
.yf-guide-steps { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 46px; border-top: 1px solid var(--guide-dark-line); }
.yf-guide-steps article { padding: 28px 28px 0 0; border-right: 1px solid var(--guide-dark-line); }
.yf-guide-steps article:last-child { border-right: 0; padding-left: 28px; }
.yf-guide-steps article:nth-child(2) { padding-left: 28px; }
.yf-guide-steps span { color: var(--guide-gold); font: 600 12px/1 "IBM Plex Mono", monospace; }
.yf-guide-steps h3 { margin: 18px 0 10px; font-size: 21px; }
.yf-guide-steps p { margin: 0; color: rgba(230,243,237,.6); font-size: 14px; }

.yf-guide-faq-section { background: var(--guide-white); }
.yf-guide-methodology-section { background: #eef3f0; }
.yf-guide-methodology { display: grid; grid-template-columns: minmax(0, .8fr) minmax(400px, 1.2fr); gap: 72px; align-items: start; }
.yf-guide-methodology > div:only-child { grid-column: 1 / -1; max-width: 780px; }
.yf-guide-methodology h2 { max-width: 720px; margin: 14px 0 22px; color: var(--guide-ink); font-size: clamp(34px, 4vw, 52px); line-height: 1.08; }
.yf-guide-methodology p:not(.yf-guide-eyebrow) { max-width: 720px; color: var(--guide-muted); line-height: 1.75; }
.yf-guide-methodology__notice { padding-left: 16px; border-left: 2px solid var(--guide-gold); }
.yf-guide-sources { display: grid; border-top: 1px solid var(--guide-line); }
.yf-guide-sources a { display: grid; grid-template-columns: 32px 1fr 18px; align-items: center; gap: 12px; min-height: 70px; padding: 12px 0; border-bottom: 1px solid var(--guide-line); }
.yf-guide-sources span { color: #8f7525; font: 600 11px/1 "IBM Plex Mono", monospace; }
.yf-guide-sources strong { color: var(--guide-ink); font-size: 14px; line-height: 1.5; }
.yf-guide-sources i { color: #168565; }
.yf-guide-sources a:hover strong { color: #168565; }
.yf-guide-faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 90px; }
.yf-guide-faq-layout > div:first-child > p:last-child { color: var(--guide-muted); }
.yf-guide-faq { border-top: 1px solid var(--guide-line); }
.yf-guide-faq details { border-bottom: 1px solid var(--guide-line); }
.yf-guide-faq summary { display: grid; grid-template-columns: 34px 1fr 22px; align-items: center; gap: 12px; padding: 22px 0; cursor: pointer; list-style: none; font-size: 16px; font-weight: 730; }
.yf-guide-faq summary::-webkit-details-marker { display: none; }
.yf-guide-faq summary span { color: #899690; font: 600 11px/1 "IBM Plex Mono", monospace; }
.yf-guide-faq summary i { color: #168565; }
.yf-guide-faq details > div { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s ease; }
.yf-guide-faq details[open] > div { grid-template-rows: 1fr; }
.yf-guide-faq details > div > p { min-height: 0; overflow: hidden; margin: 0; color: var(--guide-muted); }
.yf-guide-faq details[open] > div > p { padding: 0 34px 22px 46px; }

.yf-guide-related-section { background: #e7eeea; }
.yf-guide-related-head { display: block; }
.yf-guide-related { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 36px; border-top: 1px solid var(--guide-line); }
.yf-guide-related a { position: relative; display: grid; gap: 8px; min-height: 130px; padding: 24px 48px 24px 0; border-bottom: 1px solid var(--guide-line); }
.yf-guide-related a:nth-child(odd) { margin-right: 30px; }
.yf-guide-related a span { color: #77857f; font: 600 11px/1.3 "IBM Plex Mono", monospace; text-transform: uppercase; }
.yf-guide-related a strong { font-size: 18px; }
.yf-guide-related a > i { position: absolute; top: 28px; right: 8px; color: #168565; }
.yf-guide-related a:hover strong { color: #168565; }
.yf-guide-cta { padding: clamp(64px, 7vw, 90px) 0; color: #edf7f2; background: var(--guide-night); }
.yf-guide-cta > .yf-guide-wrap { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 40px; padding: clamp(34px, 5vw, 58px); border: 1px solid rgba(255,255,255,.12); border-radius: 8px; background: radial-gradient(circle at 82% 22%, rgba(101,217,174,.12), transparent 22rem), rgba(255,255,255,.025); }
.yf-guide-cta h2 { max-width: 780px; margin: 14px 0 20px; color: #f4faf7; font-size: clamp(38px, 4.5vw, 58px); line-height: 1.08; }
.yf-guide-cta div > p:last-child { max-width: 690px; color: rgba(230,243,237,.62); }

.yf-guide-catalog-section { background: var(--guide-white); }
.yf-guide-catalog-controls { display: grid; grid-template-columns: minmax(0, 700px) auto; align-items: end; justify-content: space-between; gap: clamp(32px, 6vw, 86px); }
.yf-guide-catalog-controls > div:first-child { min-width: 0; }
.yf-guide-catalog-controls h2 { max-width: none; margin-bottom: 0; font-size: 38px; line-height: 1.08; white-space: nowrap; }
.yf-guide-filters { display: flex; flex-wrap: nowrap; gap: 7px; padding-bottom: 4px; }
.yf-guide-filters button { padding: 9px 13px; border: 1px solid var(--guide-line); border-radius: 999px; color: var(--guide-muted); background: transparent; font-size: 12px; cursor: pointer; }
.yf-guide-filters button.is-active { color: #fff; border-color: var(--guide-forest); background: var(--guide-forest); }
.yf-guide-catalog { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 48px; overflow: hidden; border: 1px solid var(--guide-line); border-radius: 8px; background: var(--guide-line); }
.yf-guide-catalog a { display: grid; min-height: 250px; padding: 30px; background: var(--guide-white); }
.yf-guide-catalog a:hover { background: #edf6f2; }
.yf-guide-catalog a > span { color: #8f7525; font: 600 11px/1.3 "IBM Plex Mono", monospace; text-transform: uppercase; }
.yf-guide-catalog h3 { margin: 32px 0 10px; font-size: 27px; line-height: 1.2; }
.yf-guide-catalog p { margin: 0; color: var(--guide-muted); }
.yf-guide-catalog small { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 24px; color: #168565; }
.yf-guide-catalog a[hidden] { display: none; }

.yf-guide-pricing-section { background: var(--guide-white); }
.yf-guide-pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 42px; }
.yf-guide-pricing article { position: relative; display: flex; flex-direction: column; min-height: 390px; padding: 28px; border: 1px solid var(--guide-line); border-radius: 8px; background: #fff; }
.yf-guide-pricing article.is-featured { border-color: #45a986; box-shadow: 0 24px 60px rgba(13,83,62,.12); }
.yf-guide-pricing article > span { color: #8c752d; font: 700 11px/1.3 "IBM Plex Mono", monospace; text-transform: uppercase; }
.yf-guide-pricing h3 { margin: 18px 0 8px; font-size: 28px; }
.yf-guide-pricing article > strong { margin-top: 18px; font-size: 34px; }
.yf-guide-pricing strong small { color: var(--guide-muted); font-size: 12px; }
.yf-guide-pricing p { color: var(--guide-muted); }
.yf-guide-pricing a { margin-top: auto; padding: 12px; border: 1px solid var(--guide-line); border-radius: 6px; text-align: center; font-weight: 750; }
.yf-guide-pricing .is-featured a { color: #092019; border-color: var(--guide-mint); background: var(--guide-mint); }
.yf-guide-sale { position: absolute; top: 24px; right: 24px; padding: 5px 8px; color: #6f5510; background: #f7e9ad; font-weight: 800; }
.yf-guide-pricing del { color: #8a9691; }

/* Pricing uses the same complete cards and pricing source as the landing page. */
.yf-guide-pricing-section {
    color: #eef8f3;
    background:
        radial-gradient(circle at 78% 18%, rgba(101, 217, 174, .1), transparent 28rem),
        var(--guide-forest);
}
.yf-guide-pricing-section .yf-guide-eyebrow { color: var(--guide-gold); }
.yf-guide-pricing-section h2 {
    max-width: 820px;
    color: #f5faf7;
}
.yf-guide-pricing-lead {
    max-width: 700px;
    margin: 0;
    color: rgba(229, 242, 236, .68);
    font-size: 16px;
    line-height: 1.7;
}
.yf-guide-pricing-section .yf26-pricing { margin-top: 42px; }

/* Related guides are a navigable continuation, not a flat link table. */
.yf-guide-related-section {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .28), transparent 40%),
        #e7eeea;
}
.yf-guide-related-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
    align-items: end;
    gap: 40px;
}
.yf-guide-related-head h2 { margin-bottom: 0; }
.yf-guide-related-head > p {
    margin: 0 0 4px;
    color: var(--guide-muted);
    font-size: 15px;
    line-height: 1.7;
}
.yf-guide-related {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 42px;
    border-top: 0;
}
.yf-guide-related a,
.yf-guide-related a:nth-child(odd) {
    position: relative;
    min-width: 0;
    min-height: 230px;
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) auto;
    grid-template-areas:
        "icon eyebrow number"
        "icon title title"
        ". text text"
        ". action action";
    grid-template-rows: auto auto 1fr auto;
    align-items: start;
    gap: 8px 16px;
    margin: 0;
    padding: 26px 28px;
    overflow: hidden;
    border: 1px solid rgba(16, 34, 30, .12);
    border-radius: 8px;
    background: rgba(255, 255, 255, .72);
    box-shadow: 0 12px 32px rgba(13, 51, 39, .055);
}
.yf-guide-related__number {
    grid-area: number;
    align-self: center;
    color: #9aa6a1 !important;
    font: 650 11px/1 "IBM Plex Mono", monospace !important;
}
.yf-guide-related__icon {
    grid-area: icon;
    width: 48px;
    aspect-ratio: 1;
    display: inline-grid;
    place-items: center;
    border: 1px solid rgba(36, 151, 112, .12);
    border-radius: 50%;
    color: #168565;
    background: #e1f3eb;
    font-size: 19px;
}
.yf-guide-related__eyebrow {
    grid-area: eyebrow;
    align-self: center;
    color: #71817b !important;
    font: 650 11px/1.35 "IBM Plex Mono", monospace !important;
    text-transform: uppercase;
}
.yf-guide-related a > strong {
    grid-area: title;
    color: var(--guide-ink);
    font-size: 21px;
    line-height: 1.3;
}
.yf-guide-related a > p {
    grid-area: text;
    max-width: 48ch;
    margin: 5px 0 0;
    color: var(--guide-muted);
    font-size: 14px;
    line-height: 1.65;
}
.yf-guide-related__action {
    grid-area: action;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    margin-top: 16px;
    color: #168565 !important;
    font: 750 13px/1.3 Manrope, sans-serif !important;
    text-transform: none !important;
}
.yf-guide-related__action i {
    transition: transform .2s ease;
}
.yf-guide-related a:hover .yf-guide-related__action i,
.yf-guide-related a:focus-visible .yf-guide-related__action i {
    transform: translateX(3px);
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; } }
@media (max-width: 1000px) {
    .yf-guide-hero__grid, .yf-guide-example, .yf-guide-method, .yf-guide-tool, .yf-guide-product { grid-template-columns: 1fr; gap: 42px; }
    .yf-guide-hero__brief { max-width: 650px; }
    .yf-guide-reading-grid { grid-template-columns: 180px 1fr; gap: 45px; }
    .yf-guide-two-columns > .yf-guide-wrap, .yf-guide-faq-layout, .yf-guide-methodology { grid-template-columns: 1fr; gap: 42px; }
    .yf-guide-pricing { grid-template-columns: 1fr; }
    .yf-guide-pricing article { min-height: 0; }
}
@media (max-width: 820px) {
    .yf-guide-reading-grid { grid-template-columns: 1fr; }
    .yf-guide-product-section--mobile-copy-only .yf-guide-product {
        gap: 0;
    }
    .yf-guide-product-section--mobile-copy-only .yf-guide-product__copy {
        max-width: 620px;
    }
    .yf-guide-product-section--mobile-copy-only .yf-guide-product__media {
        display: none;
    }
    .yf-guide-toc { position: static; grid-template-columns: repeat(3, 1fr); gap: 4px 14px; padding-bottom: 20px; }
    .yf-guide-toc strong { grid-column: 1 / -1; }
    .yf-guide-steps { grid-template-columns: 1fr; }
    .yf-guide-steps article, .yf-guide-steps article:nth-child(2), .yf-guide-steps article:last-child { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--guide-dark-line); }
    .yf-guide-related, .yf-guide-catalog { grid-template-columns: 1fr; }
    .yf-guide-related a:nth-child(odd) { margin-right: 0; }
    .yf-guide-catalog-controls, .yf-guide-cta > .yf-guide-wrap { grid-template-columns: 1fr; align-items: flex-start; }
    .yf-guide-catalog-controls h2 { white-space: normal; }
    .yf-guide-filters { flex-wrap: wrap; }
}
@media (max-width: 600px) {
    .yf-guide-wrap { width: calc(100% - 28px); }
    .yf-guide-section { padding: 58px 0; }
    .yf-guide-hero { padding: 52px 0 58px; }
    .yf-guide-breadcrumbs { margin-bottom: 26px; }
    .yf-guide-hero h1 { font-size: clamp(36px, 11vw, 48px); }
    .yf-guide-lead { font-size: 16px; }
    .yf-guide-meta { gap: 9px 14px; }
    .yf-guide-actions, .yf-guide-actions form { width: 100%; }
    .yf-guide-actions .yf-guide-button { width: 100%; }
    .yf-guide-hero__brief, .yf-guide-tool__workspace { padding: 20px; }
    .yf-guide-toc { display: none; }
    .yf-guide-prose > p, .yf-guide-prose section > p { font-size: 16px; }
    .yf-guide-example__ledger > div { align-items: flex-start; flex-direction: column; gap: 4px; }
    .yf-guide-tool__workspace form, .yf-guide-flow { grid-template-columns: 1fr; }
    .yf-guide-product__media img { min-height: 230px; object-fit: contain; object-position: center; }
    .yf-guide-faq summary { grid-template-columns: 26px 1fr 18px; font-size: 15px; }
    .yf-guide-faq details[open] > div > p { padding-left: 38px; }
    .yf-guide-catalog a { min-height: 220px; padding: 24px; }
    .yf-guide-catalog h3 { margin-top: 24px; font-size: 23px; }
    .yf-guide-related-head { grid-template-columns: 1fr; gap: 18px; }
    .yf-guide-related-head > p { max-width: 48ch; }
    .yf-guide-related { margin-top: 30px; }
    .yf-guide-related a,
    .yf-guide-related a:nth-child(odd) {
        min-height: 0;
        grid-template-columns: 42px minmax(0, 1fr) auto;
        gap: 7px 13px;
        padding: 22px 20px;
    }
    .yf-guide-related__icon { width: 42px; font-size: 17px; }
    .yf-guide-related a > strong { font-size: 19px; }
}

/* Public materials: designer-review refinements. */
.yf-guide-hero h1 {
    font-size: 64px;
    line-height: 1.03;
    letter-spacing: 0;
    text-wrap: balance;
}
.yf-guide-prose h2,
.yf-guide-example h2,
.yf-guide-method h2,
.yf-guide-tool h2,
.yf-guide-product h2,
.yf-guide-two-columns h2,
.yf-guide-steps-section h2,
.yf-guide-faq-layout h2,
.yf-guide-related-head h2,
.yf-guide-catalog-controls h2,
.yf-guide-pricing-section h2 {
    font-size: 42px;
    line-height: 1.1;
    letter-spacing: 0;
    text-wrap: balance;
}
.yf-guide-prose h3 { font-size: 25px; line-height: 1.2; }
.yf-guide-eyebrow { color: #85702d; }
.yf-guide-hero .yf-guide-eyebrow,
.yf-guide-steps-section .yf-guide-eyebrow,
.yf-guide-cta .yf-guide-eyebrow { color: var(--guide-gold); }
.yf-guide-hero__brief > span {
    display: inline-flex;
    width: fit-content;
    margin-bottom: 18px;
    padding: 7px 10px;
    border: 1px solid rgba(229, 200, 93, .28);
    border-radius: 5px;
    color: #f0d56f;
    background: rgba(229, 200, 93, .08);
    font-size: 12px;
}
.yf-guide-product { grid-template-columns: minmax(0, .82fr) minmax(340px, 1.18fr); }
.yf-guide-product__copy { order: 1; }
.yf-guide-product__media { order: 2; }
.yf-guide-steps article {
    isolation: isolate;
    position: relative;
    min-height: 210px;
    overflow: hidden;
}
.yf-guide-steps article > span {
    position: absolute;
    z-index: -1;
    top: 18px;
    right: 22px;
    color: rgba(101, 217, 174, .12);
    font: 800 88px/1 Manrope, sans-serif;
}
.yf-guide-steps h3 { margin-top: 44px; }
.yf-guide-catalog { gap: 16px; }
.yf-guide-catalog > a,
.yf-guide-related > a,
.yf-guide-pricing > article {
    border-radius: 8px;
    box-shadow: 0 10px 28px rgba(13, 51, 39, .055);
}
.yf-guide-catalog > a,
.yf-guide-related > a {
    transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.yf-guide-catalog > a:hover,
.yf-guide-catalog > a:focus-visible,
.yf-guide-related > a:hover,
.yf-guide-related > a:focus-visible {
    border-color: #91c6b2;
    box-shadow: 0 16px 34px rgba(13, 51, 39, .1);
    transform: translateY(-2px);
}
.yf-guide-catalog > a:focus-visible,
.yf-guide-related > a:focus-visible,
.yf-guide-faq summary:focus-visible { outline: 3px solid rgba(43, 150, 114, .2); outline-offset: 3px; }
.yf-guide-pricing > article > span { font-size: 12px; line-height: 1.35; }
.yf-guide-faq details { border-radius: 8px; }

@media (max-width: 1023.98px) {
    .yf-guide-hero h1 { font-size: 52px; }
    .yf-guide-product { grid-template-columns: minmax(0, 1fr); }
    .yf-guide-prose h2,
    .yf-guide-example h2,
    .yf-guide-method h2,
    .yf-guide-tool h2,
    .yf-guide-product h2,
    .yf-guide-two-columns h2,
    .yf-guide-steps-section h2,
    .yf-guide-faq-layout h2,
    .yf-guide-related-head h2,
    .yf-guide-catalog-controls h2,
    .yf-guide-pricing-section h2 { font-size: 36px; }
}

@media (max-width: 575.98px) {
    .yf-guide-wrap,
    .yf-guide-hero > .yf26-container { width: calc(100% - 44px); }
    .yf-guide-section { padding: 58px 0; }
    .yf-guide-hero h1 { font-size: 40px; line-height: 1.06; }
    .yf-guide-prose h2,
    .yf-guide-example h2,
    .yf-guide-method h2,
    .yf-guide-tool h2,
    .yf-guide-product h2,
    .yf-guide-two-columns h2,
    .yf-guide-steps-section h2,
    .yf-guide-faq-layout h2,
    .yf-guide-related-head h2,
    .yf-guide-catalog-controls h2,
    .yf-guide-pricing-section h2 { font-size: 29px; }
    .yf-guide-steps article { min-height: 0; padding-block: 28px; }
    .yf-guide-steps article > span { top: 20px; right: 8px; font-size: 66px; }
    .yf-guide-steps h3 { margin-top: 34px; }
}

@media (max-width: 339.98px) {
    .yf-guide-wrap,
    .yf-guide-hero > .yf26-container { width: calc(100% - 36px); }
    .yf-guide-hero h1 { font-size: 36px; }
}