/* Editorial homepage and topic index. Desktop review surface, no legacy guide CSS. */
.guide-library-v3 {
    --library-bg: #070909;
    --library-panel: #0c1010;
    --library-text: #f0f3f4;
    --library-copy: #b5bfc0;
    --library-muted: #879294;
    --library-rule: rgba(225, 233, 234, .16);
    --library-accent: var(--lz-accent, #00f0c2);
    margin: 0;
    background: var(--library-bg);
    color: var(--library-text);
    font: 400 16px/1.65 "Instrument Sans", -apple-system, BlinkMacSystemFont, sans-serif;
    overflow-x: clip;
}
.guide-library-v3 *, .guide-library-v3 *::before, .guide-library-v3 *::after { box-sizing: border-box; }
.guide-library-v3 [hidden] { display: none !important; }
.guide-library-v3 :is(button, input, select) { font: inherit; }
.guide-library-v3 button { cursor: pointer; }
.guide-library-v3 :is(a, button, input, select, summary):focus-visible { outline: 2px solid var(--library-accent); outline-offset: 5px; }
.guide-library-v3 .library-shell {
    /* Match the navigation frame itself on desktop; safety gutters return once
       the compact navigation layout takes over. */
    width: min(1520px, calc(100vw - 84px));
    margin-inline: auto;
    padding: 118px 0 0;
}
.guide-library-v3--home .library-shell { padding-top: 110px; }
.guide-library-v3 .library-shell a { color: inherit; text-decoration: none; }
.guide-library-v3 .library-shell a:hover { color: var(--library-accent); }
.guide-library-v3 .library-shell :is(h1, h2, h3, p, ol) { margin: 0; }
.guide-library-v3 .library-shell :is(h1, h2, h3) { color: var(--library-text); font-weight: 650; }
.guide-library-v3 .library-shell p { color: var(--library-copy); }
.guide-library-v3 .library-shell svg { width: 19px; height: 19px; flex: 0 0 auto; }
.guide-library-v3 .library-sr { position: absolute; width: 1px; height: 1px; clip-path: inset(50%); white-space: nowrap; overflow: hidden; }
.guide-library-v3 .library-skip { position: fixed; z-index: 1000; top: 12px; left: 20px; padding: 12px 20px; background: var(--library-text); color: var(--library-bg); transform: translateY(-160%); }
.guide-library-v3 .library-skip:focus { transform: none; }
.guide-library-v3 .library-eyebrow { display: block; color: var(--library-accent); font: 500 12px/1.5 "DM Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.guide-library-v3 .library-shell .library-text-link { display: inline-flex; align-items: center; gap: 12px; color: var(--library-accent); font-size: 16px; font-weight: 600; }
.guide-library-v3 .library-masthead { display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: center; gap: 42px; margin-bottom: 32px; }
.guide-library-v3 .library-masthead h1 { margin-top: 10px; font-size: clamp(56px, 3.55vw, 66px); line-height: 1.04; letter-spacing: -.055em; }
.guide-library-v3 .library-masthead p { margin-top: 10px; font-size: 22px; line-height: 1.45; }
.guide-library-v3 .library-search { display: flex; align-items: center; gap: 16px; min-width: 0; }
.guide-library-v3 .library-search input { width: 100%; min-width: 0; min-height: 54px; padding: 13px 18px; color: var(--library-text); background: var(--library-panel); border: 1px solid var(--library-rule); border-radius: 5px; }
.guide-library-v3 .library-search input::placeholder { color: var(--library-muted); opacity: 1; }
.guide-library-v3 .library-search button { min-height: 54px; padding: 12px 36px; border: 1px solid var(--library-rule); border-radius: 5px; color: var(--library-text); background: var(--library-panel); font-size: 15px; font-weight: 650; }
.guide-library-v3 .library-search--compact { position: relative; }
.guide-library-v3 .library-search--compact input { padding-right: 56px; }
.guide-library-v3 .library-search--compact button { position: absolute; right: 6px; min-height: 42px; width: 42px; padding: 9px; display: grid; place-items: center; border: 0; background: transparent; }
.guide-library-v3 .library-topics { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--library-rule); }
.guide-library-v3 .library-topics a { display: flex; align-items: center; min-height: 58px; padding: 8px 6px 15px; border-bottom: 2px solid transparent; font-size: 14px; line-height: 1.5; white-space: nowrap; }
.guide-library-v3 .library-topics a[aria-current] { color: var(--library-accent); border-bottom-color: var(--library-accent); }
.guide-library-v3 .library-feature { display: grid; grid-template-columns: minmax(0, 1.85fr) minmax(0, 1fr); gap: 36px; padding-block: 40px; }
.guide-library-v3 .library-feature-main h2 { margin-block: 14px 18px; font-size: clamp(48px, 3vw, 56px); line-height: 1.03; letter-spacing: -.048em; }
.guide-library-v3 .library-feature-main > p { max-width: 660px; font-size: 18px; line-height: 1.6; }
.guide-library-v3 .library-feature-main > .library-text-link { margin-top: 20px; }
.guide-library-v3 .library-feature-art { display: block; margin-top: 28px; }
.guide-library-v3 .library-feature-art img { display: block; width: 100%; height: auto; }
.guide-library-v3 .library-reading-list { min-width: 0; padding-left: 34px; border-left: 1px solid var(--library-rule); }
.guide-library-v3 .library-section-heading { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 20px; }
.guide-library-v3 .library-section-heading h2 { font-size: 28px; line-height: 1.2; letter-spacing: -.035em; }
.guide-library-v3 .library-section-heading h2.library-eyebrow { font: 500 12px/1.5 "DM Mono", monospace; color: var(--library-accent); letter-spacing: .06em; }
.guide-library-v3 .library-section-heading > a { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-size: 14px; color: var(--library-accent); }
.guide-library-v3 .library-reading-list .library-section-heading { margin-bottom: 0; }
.guide-library-v3 .library-reading-list ol { list-style: none; padding: 0; }
.guide-library-v3 .library-reading-list li { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 16px; padding-block: 24px; border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-reading-list li:first-child { margin-top: 20px; }
.guide-library-v3 .library-index { color: var(--library-muted); font: 400 15px/1.6 "DM Mono", monospace; }
.guide-library-v3 .library-reading-list h3 { font-size: 21px; line-height: 1.25; letter-spacing: -.025em; }
.guide-library-v3 .library-reading-list p { margin-top: 10px; font-size: 16px; line-height: 1.55; }
.guide-library-v3 .library-reading-list small { margin-top: 12px; }
.guide-library-v3 :is(.library-topic-section, .library-updates) { padding-block: 30px; border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 48px; }
.guide-library-v3 .library-topic-grid > a { display: grid; grid-template-columns: 24px minmax(0, 1fr) 19px; align-items: start; gap: 18px; padding-block: 24px; border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-topic-grid > a:nth-child(-n + 3) { border-top: 0; padding-top: 4px; }
.guide-library-v3 .library-topic-grid h3 { font-size: 20px; line-height: 1.35; }
.guide-library-v3 .library-topic-grid p { margin-top: 5px; font-size: 16px; }
.guide-library-v3 .library-topic-grid span { display: block; margin-top: 8px; color: var(--library-muted); font-size: 13px; }
.guide-library-v3 .library-topic-grid .library-topic-icon { width: 21px; height: 21px; margin-top: 3px; color: var(--library-copy); stroke-width: 1.7; }
.guide-library-v3 .library-topic-grid .library-topic-arrow { width: 17px; height: 17px; margin-top: 4px; color: var(--library-accent); }
.guide-library-v3 .library-recent-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 48px; row-gap: 24px; }
.guide-library-v3 .library-recent-grid a { padding-top: 4px; }
.guide-library-v3 .library-recent-grid a:nth-child(n + 4) { padding-top: 24px; border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-recent-grid h3 { font-size: 19px; line-height: 1.35; }
.guide-library-v3 .library-recent-grid small { margin-top: 12px; }
.guide-library-v3 .library-entry-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; color: var(--library-muted); font-size: 12px; line-height: 1.5; }
.guide-library-v3 .library-entry-type { color: var(--library-accent); font: 500 11px/1.5 "DM Mono", monospace; letter-spacing: .07em; text-transform: uppercase; }
.guide-library-v3 .library-entry-meta time { color: var(--library-copy); font: 500 11px/1.5 "DM Mono", monospace; letter-spacing: .025em; text-transform: uppercase; }
.guide-library-v3 .library-entry-read { padding-left: 10px; border-left: 1px solid var(--library-rule); }
.guide-library-v3 .library-methodology { display: flex; gap: 32px; align-items: center; margin-top: 20px; padding-block: 24px; border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-methodology p { font-size: 14px; }
body.public-ecosystem-page.guide-library-v3 .lz-footer-main { padding-top: 64px; }

/* Topic index: one navigational rail, one flat list; not cards inside cards. */
.guide-library-v3--archive .library-archive-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 0 48px; }
.guide-library-v3 .library-topic-rail { position: sticky; top: 118px; align-self: start; padding-right: 26px; border-right: 1px solid var(--library-rule); }
.guide-library-v3 .library-topic-rail > .library-eyebrow { color: var(--library-muted); margin-bottom: 26px; }
.guide-library-v3 .library-topic-rail nav a { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 54px; margin-left: -12px; padding: 10px 0 10px 12px; font-size: 16px; line-height: 1.4; border-left: 2px solid transparent; }
.guide-library-v3 .library-topic-rail nav a[aria-current] { border-left-color: var(--library-accent); color: var(--library-accent); font-weight: 600; }
.guide-library-v3 .library-topic-rail nav span { color: var(--library-muted); font-size: 12px; }
.guide-library-v3 .library-rail-notes { display: grid; gap: 16px; margin-top: 42px; padding-top: 26px; border-top: 1px solid var(--library-rule); font-size: 13px; color: var(--library-muted); }
.guide-library-v3 .library-rail-notes > * { display: flex; align-items: center; gap: 12px; }
.guide-library-v3 .library-rail-notes svg { width: 17px; height: 17px; }
.guide-library-v3 .library-archive-main { min-width: 0; }
.guide-library-v3 .library-archive-header h1 { margin-top: 18px; max-width: 24ch; font-size: clamp(48px, 3.9vw, 64px); line-height: 1.04; letter-spacing: -.05em; }
.guide-library-v3 .library-archive-header p { margin-top: 18px; max-width: 920px; font-size: 19px; line-height: 1.6; }
.guide-library-v3 .library-archive-form { margin-top: 26px; }
.guide-library-v3 .library-archive-form .library-search { position: relative; }
.guide-library-v3 .library-archive-form .library-search > svg { position: absolute; left: 18px; color: var(--library-muted); }
.guide-library-v3 .library-archive-form .library-search input { padding-left: 52px; }
.guide-library-v3 .library-filters { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 16px; border-bottom: 1px solid var(--library-rule); }
.guide-library-v3 .library-filters button { display: inline-flex; align-items: center; gap: 8px; min-height: 54px; padding: 12px 6px; background: transparent; color: var(--library-copy); border: 0; border-bottom: 2px solid transparent; font-size: 15px; }
.guide-library-v3 .library-filters button[aria-pressed="true"] { color: var(--library-text); border-bottom-color: var(--library-accent); }
.guide-library-v3 .library-filters span { color: var(--library-muted); font-size: 12px; }
.guide-library-v3 .library-starter { padding-block: 28px 34px; }
.guide-library-v3 .library-starter > div { display: grid; grid-template-columns: 120px minmax(0, 1fr) 200px; gap: 24px; margin-top: 22px; }
.guide-library-v3 .library-start-label { color: var(--library-muted); font: 400 12px/1.6 "DM Mono", monospace; text-transform: uppercase; padding-top: 5px; }
.guide-library-v3 .library-starter h2 { font-size: 26px; letter-spacing: -.025em; line-height: 1.2; }
.guide-library-v3 .library-starter p { margin-top: 12px; font-size: 16px; }
.guide-library-v3 .library-starter .library-text-link { margin-top: 18px; font-size: 15px; }
.guide-library-v3 .library-start-meta { border-left: 1px solid var(--library-rule); padding-left: 26px; }
.guide-library-v3 .library-start-meta span { color: var(--library-muted); font: 400 12px/1.5 "DM Mono", monospace; text-transform: uppercase; }
.guide-library-v3 .library-start-meta p { font-size: 14px; }
.guide-library-v3 .library-starter:not([hidden]) + .library-archive { border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-archive-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-block: 24px 16px; }
.guide-library-v3 .library-archive-toolbar > p { font: 400 12px/1.6 "DM Mono", monospace; text-transform: uppercase; }
.guide-library-v3 .library-archive-toolbar label { display: flex; align-items: center; gap: 10px; color: var(--library-muted); font-size: 13px; }
.guide-library-v3 .library-archive-toolbar select { padding: 8px; border: 0; color: var(--library-text); background: var(--library-bg); font-size: 14px; }
.guide-library-v3 .library-guide-row { display: grid; grid-template-columns: 120px minmax(0, 1fr) 115px 22px; gap: 24px; align-items: center; padding-block: 24px; border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-row-type { color: var(--library-accent); font: 500 11px/1.6 "DM Mono", monospace; text-transform: uppercase; letter-spacing: .07em; }
.guide-library-v3 .library-row-meta { display: grid; gap: 12px; min-width: 0; }
.guide-library-v3 .library-brand-marks { display: flex; gap: 8px; align-items: center; max-width: 100%; }
.guide-library-v3 .library-guide-row h2 { font-size: 21px; line-height: 1.3; letter-spacing: -.022em; }
.guide-library-v3 .library-guide-row p { margin-top: 7px; font-size: 16px; line-height: 1.55; }
.guide-library-v3 .library-row-time { display: grid; justify-items: end; gap: 3px; color: var(--library-muted); font-size: 12px; line-height: 1.4; text-align: right; }
.guide-library-v3 .library-row-time time { color: var(--library-copy); font: 500 11px/1.4 "DM Mono", monospace; letter-spacing: .025em; text-transform: uppercase; }
.guide-library-v3 .library-guide-row > svg { color: var(--library-accent); }
.guide-library-v3 .library-show-more { display: flex; align-items: center; justify-content: center; gap: 12px; width: 100%; min-height: 50px; margin-top: 24px; border: 1px solid var(--library-rule); border-radius: 4px; color: var(--library-text); background: var(--library-panel); font-size: 15px; font-weight: 600; }
.guide-library-v3 :is(.library-show-more, .library-search button):hover { border-color: var(--library-accent); }
.guide-library-v3 .library-empty { text-align: center; padding: 60px 24px; }
.guide-library-v3 .library-empty > svg { display: block; width: 28px; height: 28px; margin-inline: auto; color: var(--library-muted); }
.guide-library-v3 .library-empty h2 { margin-top: 16px; font-size: 28px; }
.guide-library-v3 .library-empty p { margin-top: 10px; }
.guide-library-v3 .library-empty [data-library-clear] { display: inline-flex; align-items: center; min-height: 44px; margin-top: 20px; padding: 10px 20px; border: 1px solid var(--library-rule); border-radius: 4px; background: transparent; color: var(--library-text); font-size: 15px; }
.guide-library-v3 .library-archive-end { padding: 16px 0 8px; text-align: center; }
.guide-library-v3 .library-faq { margin-top: 30px; padding-top: 30px; border-top: 1px solid var(--library-rule); }
.guide-library-v3 .library-faq > h2 { margin-bottom: 22px; font-size: 28px; letter-spacing: -.025em; }
.guide-library-v3 .library-faq details { border-bottom: 1px solid var(--library-rule); }
.guide-library-v3 .library-faq summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 66px; padding-block: 16px; font-size: 17px; cursor: pointer; list-style: none; }
.guide-library-v3 .library-faq summary::-webkit-details-marker { display: none; }
.guide-library-v3 .library-faq details[open] summary svg { transform: rotate(45deg); }
.guide-library-v3 .library-faq details p { padding: 0 48px 26px 0; font-size: 16px; }
.guide-library-v3--archive .library-methodology { margin-top: 28px; }
body.guide-library-v3 .lz-footer { margin-top: 0; }

/* Compact desktop, tablet, and mobile compositions. */
@media (min-width: 1181px) and (max-width: 1380px) {
    .guide-library-v3 .library-shell {
        width: min(1520px, calc(100vw - 56px));
    }
}
@media (min-width: 1180px) and (max-width: 1439px) {
    .guide-library-v3 .library-masthead { grid-template-columns: minmax(0, 1fr) 270px; gap: 28px; }
    .guide-library-v3 .library-topics { gap: 8px; }
    .guide-library-v3 .library-topics a { font-size: 13px; padding-inline: 2px; }
    .guide-library-v3--archive .library-archive-layout { grid-template-columns: 200px minmax(0, 1fr); gap: 0 34px; }
    .guide-library-v3 .library-guide-row { grid-template-columns: 95px minmax(0, 1fr) 90px 18px; gap: 20px; }
    .guide-library-v3 .library-starter > div { grid-template-columns: 95px minmax(0, 1fr) 160px; gap: 20px; }
    .guide-library-v3 .library-reading-list { padding-left: 24px; }
}
@media (max-width: 1180px) {
    .guide-library-v3 .library-shell {
        width: auto;
        padding-inline: 28px;
    }
    .guide-library-v3 .library-masthead {
        grid-template-columns: minmax(0, 1fr);
        align-items: start;
        gap: 26px;
    }
    .guide-library-v3 .library-masthead h1 { max-width: 15ch; font-size: clamp(48px, 6vw, 60px); }
    .guide-library-v3 .library-masthead p { max-width: 760px; font-size: 20px; }
    .guide-library-v3 .library-search { width: min(720px, 100%); }
    .guide-library-v3 .library-topics {
        justify-content: flex-start;
        gap: 26px;
        overflow-x: auto;
        overscroll-behavior-inline: contain;
        scrollbar-width: none;
    }
    .guide-library-v3 .library-topics::-webkit-scrollbar { display: none; }
    .guide-library-v3 .library-topics a { flex: 0 0 auto; }
    .guide-library-v3 .library-feature {
        grid-template-columns: minmax(0, 1fr);
        gap: 36px;
        padding-block: 36px;
    }
    .guide-library-v3 .library-feature-main h2 { max-width: 22ch; font-size: clamp(42px, 5.2vw, 54px); }
    .guide-library-v3 .library-feature-main > p { max-width: 760px; }
    .guide-library-v3 .library-reading-list {
        padding: 30px 0 0;
        border-top: 1px solid var(--library-rule);
        border-left: 0;
    }
    .guide-library-v3 .library-reading-list ol {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        column-gap: 28px;
        margin-top: 18px;
    }
    .guide-library-v3 .library-reading-list li {
        grid-template-columns: 28px minmax(0, 1fr);
        gap: 10px;
        margin-top: 0;
        padding-block: 20px;
    }
    .guide-library-v3 .library-reading-list li:first-child { margin-top: 0; }
    .guide-library-v3 .library-topic-grid,
    .guide-library-v3 .library-recent-grid { column-gap: 32px; }
    .guide-library-v3--archive .library-archive-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 34px;
    }
    .guide-library-v3 .library-topic-rail {
        position: static;
        top: auto;
        padding: 0 0 20px;
        border-right: 0;
        border-bottom: 1px solid var(--library-rule);
    }
    .guide-library-v3 .library-topic-rail > .library-eyebrow { margin-bottom: 12px; }
    .guide-library-v3 .library-topic-rail nav {
        display: flex;
        gap: 26px;
        overflow-x: auto;
        overscroll-behavior-inline: contain;
        scrollbar-width: none;
    }
    .guide-library-v3 .library-topic-rail nav::-webkit-scrollbar { display: none; }
    .guide-library-v3 .library-topic-rail nav a {
        flex: 0 0 auto;
        gap: 8px;
        min-height: 46px;
        margin-left: 0;
        padding: 8px 0 12px;
        border-bottom: 2px solid transparent;
        border-left: 0;
        font-size: 14px;
    }
    .guide-library-v3 .library-topic-rail nav a[aria-current] {
        border-bottom-color: var(--library-accent);
        border-left-color: transparent;
    }
    .guide-library-v3 .library-rail-notes { display: none; }
    .guide-library-v3 .library-archive-header h1 { max-width: 20ch; font-size: clamp(44px, 6vw, 58px); }
    .guide-library-v3 .library-archive-header p { max-width: 760px; font-size: 18px; }
}

@media (max-width: 900px) {
    .guide-library-v3 .library-reading-list ol { grid-template-columns: minmax(0, 1fr); }
    .guide-library-v3 .library-reading-list li { grid-template-columns: 36px minmax(0, 1fr); gap: 14px; }
    .guide-library-v3 .library-topic-grid,
    .guide-library-v3 .library-recent-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .guide-library-v3 .library-topic-grid > a:nth-child(n + 3),
    .guide-library-v3 .library-recent-grid > a:nth-child(n + 3) {
        padding-top: 24px;
        border-top: 1px solid var(--library-rule);
    }
    .guide-library-v3 .library-topic-grid > a:nth-child(-n + 2),
    .guide-library-v3 .library-recent-grid > a:nth-child(-n + 2) {
        padding-top: 4px;
        border-top: 0;
    }
    .guide-library-v3 .library-starter > div {
        grid-template-columns: minmax(0, 1fr);
        gap: 14px;
    }
    .guide-library-v3 .library-start-label { padding-top: 0; }
    .guide-library-v3 .library-start-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 8px 20px;
        padding: 16px 0 0;
        border-top: 1px solid var(--library-rule);
        border-left: 0;
    }
    .guide-library-v3 .library-start-meta span { flex-basis: 100%; }
    .guide-library-v3 .library-start-meta p { margin-top: 0; }
    .guide-library-v3 .library-guide-row {
        grid-template-columns: minmax(0, 1fr) 20px;
        gap: 12px 18px;
        align-items: start;
    }
    .guide-library-v3 .library-guide-row > .library-row-meta {
        grid-column: 1;
        grid-row: 1;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .guide-library-v3 .library-guide-row > div {
        grid-column: 1 / -1;
        grid-row: 2;
    }
    .guide-library-v3 .library-guide-row > .library-row-time {
        grid-column: 1 / -1;
        grid-row: 3;
        display: flex;
        flex-wrap: wrap;
        justify-items: start;
        gap: 6px 14px;
        text-align: left;
    }
    .guide-library-v3 .library-guide-row > svg {
        grid-column: 2;
        grid-row: 1;
        align-self: center;
    }
}

@media (max-width: 640px) {
    .guide-library-v3 .library-shell { padding: 98px 20px 0; }
    .guide-library-v3--home .library-shell { padding-top: 98px; }
    .guide-library-v3 .library-masthead { gap: 20px; margin-bottom: 24px; }
    .guide-library-v3 .library-masthead h1 { font-size: clamp(38px, 10.8vw, 48px); line-height: 1.02; }
    .guide-library-v3 .library-masthead p { font-size: 18px; line-height: 1.5; }
    .guide-library-v3 .library-search input,
    .guide-library-v3 .library-search button { min-height: 50px; }
    .guide-library-v3 .library-topics { gap: 20px; }
    .guide-library-v3 .library-topics a { min-height: 52px; padding-bottom: 12px; }
    .guide-library-v3 .library-feature { gap: 28px; padding-block: 28px; }
    .guide-library-v3 .library-feature-main h2 { margin-block: 12px 16px; font-size: clamp(34px, 9.2vw, 42px); }
    .guide-library-v3 .library-feature-main > p { font-size: 16px; line-height: 1.55; }
    .guide-library-v3 .library-feature-main > .library-text-link { margin-top: 18px; }
    .guide-library-v3 .library-feature-art { margin-top: 24px; }
    .guide-library-v3 .library-reading-list { padding-top: 26px; }
    .guide-library-v3 .library-reading-list ol { margin-top: 14px; }
    .guide-library-v3 .library-reading-list li { grid-template-columns: 28px minmax(0, 1fr); gap: 10px; padding-block: 18px; }
    .guide-library-v3 .library-reading-list h3 { font-size: 19px; }
    .guide-library-v3 .library-reading-list p { font-size: 15px; }
    .guide-library-v3 :is(.library-topic-section, .library-updates) { padding-block: 26px; }
    .guide-library-v3 .library-section-heading { display: grid; justify-items: start; gap: 8px; margin-bottom: 18px; }
    .guide-library-v3 .library-section-heading h2 { font-size: 26px; }
    .guide-library-v3 .library-topic-grid,
    .guide-library-v3 .library-recent-grid { grid-template-columns: minmax(0, 1fr); row-gap: 0; }
    .guide-library-v3 .library-topic-grid > a,
    .guide-library-v3 .library-topic-grid > a:nth-child(n + 2),
    .guide-library-v3 .library-recent-grid > a,
    .guide-library-v3 .library-recent-grid > a:nth-child(n + 2) {
        padding-block: 20px;
        border-top: 1px solid var(--library-rule);
    }
    .guide-library-v3 .library-topic-grid > a:first-child,
    .guide-library-v3 .library-recent-grid > a:first-child {
        padding-top: 4px;
        border-top: 0;
    }
    .guide-library-v3 .library-topic-grid > a { grid-template-columns: 22px minmax(0, 1fr) 17px; gap: 14px; }
    .guide-library-v3 .library-topic-grid h3 { font-size: 19px; }
    .guide-library-v3 .library-topic-grid p { font-size: 15px; }
    .guide-library-v3 .library-recent-grid h3 { font-size: 18px; }
    .guide-library-v3 .library-methodology { align-items: flex-start; flex-direction: column; gap: 8px; }
    .guide-library-v3--archive .library-archive-layout { gap: 28px; }
    .guide-library-v3 .library-topic-rail { padding-bottom: 14px; }
    .guide-library-v3 .library-topic-rail > .library-eyebrow { margin-bottom: 8px; }
    .guide-library-v3 .library-topic-rail nav { gap: 22px; }
    .guide-library-v3 .library-topic-rail nav a { min-height: 44px; padding-bottom: 10px; }
    .guide-library-v3 .library-archive-header h1 { margin-top: 12px; font-size: clamp(36px, 10vw, 44px); }
    .guide-library-v3 .library-archive-header p { margin-top: 14px; font-size: 17px; line-height: 1.55; }
    .guide-library-v3 .library-archive-form { margin-top: 22px; }
    .guide-library-v3 .library-archive-form .library-search { gap: 10px; }
    .guide-library-v3 .library-archive-form .library-search button { padding-inline: 18px; }
    .guide-library-v3 .library-filters {
        flex-wrap: nowrap;
        gap: 20px;
        overflow-x: auto;
        overscroll-behavior-inline: contain;
        scrollbar-width: none;
    }
    .guide-library-v3 .library-filters::-webkit-scrollbar { display: none; }
    .guide-library-v3 .library-filters button { flex: 0 0 auto; min-height: 50px; }
    .guide-library-v3 .library-starter { padding-block: 24px 28px; }
    .guide-library-v3 .library-starter > div { margin-top: 16px; }
    .guide-library-v3 .library-starter h2 { font-size: 24px; }
    .guide-library-v3 .library-starter p { font-size: 15px; }
    .guide-library-v3 .library-archive-toolbar {
        align-items: start;
        flex-direction: column;
        gap: 8px;
        padding-block: 20px 12px;
    }
    .guide-library-v3 .library-archive-toolbar label { width: 100%; justify-content: space-between; }
    .guide-library-v3 .library-archive-toolbar select { max-width: 70%; text-align: right; }
    .guide-library-v3 .library-guide-row { gap: 10px 16px; padding-block: 22px; }
    .guide-library-v3 .library-guide-row h2 { font-size: 20px; }
    .guide-library-v3 .library-guide-row p { margin-top: 8px; font-size: 15px; line-height: 1.55; }
    .guide-library-v3 .library-row-meta { gap: 10px; }
    .guide-library-v3 .library-brand-mark { --tsb-source-mark-size: 30px; --tsb-prop-logo-frame: 30px; --tsb-prop-logo-art: 22px; }
    .guide-library-v3 .library-faq { margin-top: 24px; padding-top: 24px; }
    .guide-library-v3 .library-faq > h2 { font-size: 26px; }
    .guide-library-v3 .library-faq summary { gap: 16px; min-height: 62px; font-size: 16px; }
    .guide-library-v3 .library-faq details p { padding: 0 0 24px; font-size: 15px; }
}