:root{--qf-rule:#68686a;--qf-card:#e2e3e4;--qf-action:#3730a3;--qf-wash:#d2d3d4;--qf-band-rule:#99999b;--qf-on-action:#f2f3f4;--qf-strip:#e2e3e4;--qf-band:#2c2c2e;--qf-band-action:#a5b4fc;--qf-band-ink:#f2f3f4;--qf-ink:#2c2c2e;--qf-panel:#e2e3e4;--qf-paper:#f2f3f4;--qf-muted:#38383a;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--qf-rule:#99999b;--qf-card:#2a2a2c;--qf-action:#a5b4fc;--qf-wash:#343436;--qf-band-rule:#99999b;--qf-on-action:#1e1e20;--qf-strip:#2a2a2c;--qf-band:#343436;--qf-band-action:#a5b4fc;--qf-band-ink:#e2e2e4;--qf-ink:#e2e2e4;--qf-panel:#2a2a2c;--qf-paper:#1e1e20;--qf-muted:#ceced0}}
@font-face{font-display:swap;src:url(/fonts/spacegrotesk.woff2) format("woff2");font-weight:600;scroll-margin-inline-start:11px;font-style:normal;font-family:"Space Grotesk"}
@font-face{font-display:swap;src:url(/fonts/ibmplexsans.woff2) format("woff2");font-weight:400;scroll-margin-inline-start:11px;font-style:normal;font-family:"IBM Plex Sans"}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--qf-paper)}
body{overflow-wrap:break-word;font-weight:400;scroll-margin-inline-start:11px;color:var(--qf-ink);font-size:18px;background:var(--qf-paper);font-family:"IBM Plex Sans",sans-serif;line-height:1.65;margin:0}
a{scroll-margin-inline-start:11px;text-decoration-thickness:1px;color:var(--qf-action);text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--qf-action);outline-offset:3px}
main:focus{outline:none}
h1,h2,h3,.qf-word,.qf-kicker,.qf-tab-key,.qf-view-subjects,.qf-card-key,.qf-boundary strong,.qf-record-meta dt,.qf-index-rail h2,.qf-trust a,.qf-provenance-name,.qf-provenance-label{font-weight:600;font-family:"Space Grotesk",sans-serif}
h1{max-width:18ch;scroll-margin-inline-start:11px;text-wrap:balance;font-size:36px;letter-spacing:-.015em;line-height:1.06;margin:0 0 12px}
h2{scroll-margin-inline-start:11px;text-wrap:balance;font-size:1.5rem;letter-spacing:-.005em;line-height:1.2;margin:0 0 8px}
h3{scroll-margin-inline-start:11px;font-size:1.3rem;line-height:1.2;margin:0 0 4px}
p{max-width:70ch;margin:0 0 8px}
ul,ol{padding:0;margin:0}
svg{display:block}
.qf-skip{top:-200px;padding:4px 8px;scroll-margin-inline-start:11px;align-items:center;z-index:5;min-height:44px;color:var(--qf-on-action);display:inline-flex;position:absolute;background:var(--qf-action);left:8px}
.qf-skip:focus{top:8px}
.qf-skip:focus-visible,.qf-view-subjects:focus-visible{outline:3px solid var(--qf-action);box-shadow:0 0 0 2px var(--qf-paper);scroll-margin-inline-start:11px;outline-offset:3px}

/* ProvenanceStrip (top): wordmark, scope line, research-subject index tabs */
.qf-strip{border-bottom:1px solid var(--qf-rule);background:var(--qf-strip)}
.qf-strip-inner{row-gap:8px;padding:12px 20px 8px;max-width:1280px;scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr);display:grid;margin-inline:auto}
.qf-ledger-name{justify-self:start;scroll-margin-inline-start:11px;text-decoration-line:none;gap:8px;align-items:center;min-height:44px;color:var(--qf-ink);display:inline-flex}
.qf-ledger-name svg{scroll-margin-inline-start:11px;height:40px;width:40px;flex:none}
.qf-mark-bracket{stroke-linecap:square;fill:none;stroke:var(--qf-action);stroke-width:3;scroll-margin-inline-start:11px}
.qf-mark-point{fill:var(--qf-ink)}
.qf-word{scroll-margin-inline-start:11px;display:grid;font-size:1.3rem;letter-spacing:-.01em;line-height:1}
.qf-word-base{color:var(--qf-ink)}
.qf-scope-line{max-width:52ch;scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:.9rem;line-height:1.5;margin:0}
.qf-subject-tabs ul{scroll-margin-inline-start:11px;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;list-style:none;display:grid}
.qf-subject-tabs a{border-style:solid;border-color:var(--qf-rule);padding:4px 8px;scroll-margin-inline-start:11px;text-decoration-line:none;gap:4px;align-items:center;min-height:44px;color:var(--qf-ink);display:flex;font-size:.95rem;background:var(--qf-panel);border-width:2px;line-height:1.25}
.qf-subject-tabs a:hover{border-color:var(--qf-rule)}
.qf-subject-tabs a[aria-current=page]{border-color:var(--qf-rule);box-shadow:inset 0 4px 0 var(--qf-action);scroll-margin-inline-start:11px;color:var(--qf-ink);background:var(--qf-paper)}
.qf-tab-key{scroll-margin-inline-start:11px;color:var(--qf-ink);font-size:14px;letter-spacing:.08em}

/* Workspace: research header, IndexRail, definition cards, boundaries */
.qf-workspace{min-width:0;row-gap:16px;padding:16px 20px 24px;max-width:1280px;scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr);display:grid;margin-inline:auto}
.qf-workspace>*{min-width:0}
.qf-research-header{padding-bottom:16px;border-bottom:1px solid var(--qf-rule)}
.qf-kicker{text-transform:none;scroll-margin-inline-start:11px;color:var(--qf-ink);font-size:14px;letter-spacing:.02em;margin:0 0 8px}
.qf-lead{margin-bottom:12px;max-width:60ch;scroll-margin-inline-start:11px;font-size:1.2rem;line-height:1.5}
.qf-action-row{margin-bottom:16px;scroll-margin-inline-start:11px;gap:8px 12px;align-items:center;flex-wrap:wrap;display:flex}
.qf-action-row .qf-status{margin:0}
.qf-view-subjects{padding:4px 12px;scroll-margin-inline-start:11px;text-decoration-line:none;align-items:center;min-height:44px;color:var(--qf-on-action);border-radius:2px;display:inline-flex;font-size:1.05rem;background:var(--qf-action);letter-spacing:.01em}
.qf-view-subjects:hover{text-decoration-line:underline}
.qf-status{max-width:40ch;scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:.9rem;line-height:1.5}
.qf-record-panel{padding:12px;scroll-margin-inline-start:11px;gap:12px;border:1px solid var(--qf-rule);display:grid;background:var(--qf-card)}
.qf-record-meta{display:grid;margin:0}
.qf-record-meta div{border-top:1px solid var(--qf-rule);scroll-margin-inline-start:11px;grid-template-columns:7.5rem minmax(0,1fr);column-gap:8px;display:grid;padding-block:4px}
.qf-record-meta div:first-child{border-top-color:transparent}
.qf-record-meta dt{text-transform:none;scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;letter-spacing:.02em;line-height:1.9}
.qf-record-meta dd{margin:0}
.qf-meta-row{margin-bottom:12px}
.qf-interval{scroll-margin-inline-start:11px;gap:8px;display:grid;margin:0}
.qf-interval svg{height:auto;width:100%}
.qf-iv-bracket{stroke-linecap:square;fill:none;stroke:var(--qf-action);stroke-width:4;scroll-margin-inline-start:11px}
.qf-iv-axis{fill:none;stroke:var(--qf-rule);stroke-width:2;scroll-margin-inline-start:11px}
.qf-iv-band{stroke-dasharray:6 5;fill:var(--qf-wash);stroke:var(--qf-action);stroke-width:2;scroll-margin-inline-start:11px}
.qf-iv-tick{fill:none;stroke:var(--qf-action);stroke-width:2;scroll-margin-inline-start:11px}
.qf-iv-point{fill:var(--qf-ink)}
.qf-interval-key{scroll-margin-inline-start:11px;gap:4px;list-style:none;display:grid;font-size:.9rem;line-height:1.45}
.qf-interval-key strong{font-weight:600;scroll-margin-inline-start:11px;color:var(--qf-ink);font-family:"Space Grotesk",sans-serif}
.qf-interval figcaption{color:var(--qf-muted);font-size:14px}
.qf-index-rail{padding:12px;scroll-margin-inline-start:11px;border:1px solid var(--qf-rule);background:var(--qf-card)}
.qf-index-rail h2{text-transform:none;margin-bottom:4px;scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;letter-spacing:.02em}
.qf-index-rail ol,.qf-index-rail ul{list-style:none;display:grid}
.qf-index-rail a{scroll-margin-inline-start:11px;align-items:center;min-height:44px;display:flex;font-size:.95rem;line-height:1.3}
.qf-rail-note{scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;line-height:1.5;margin:8px 0 0}
.qf-rail-sub{margin-top:12px}
.qf-section-lead{margin-bottom:12px;max-width:60ch;scroll-margin-inline-start:11px;color:var(--qf-muted)}
.qf-card-grid{scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr);gap:12px;display:grid}
.qf-definition-card{flex-direction:column;padding:12px 16px;scroll-margin-inline-start:11px;display:flex;position:relative;background:var(--qf-card)}
.qf-definition-card::before,.qf-definition-card::after{top:0;border-style:solid;border-color:var(--qf-rule);scroll-margin-inline-start:11px;width:16px;content:"";position:absolute;bottom:0}
.qf-definition-card::before{border-width:3px 0 3px 3px;left:0}
.qf-definition-card::after{right:0;border-width:3px 3px 3px 0}
.qf-card-key{text-transform:none;scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;letter-spacing:.02em;margin:0}
.qf-definition-card h3 a{scroll-margin-inline-start:11px;text-decoration-line:underline;align-items:center;min-height:44px;color:var(--qf-ink);display:inline-flex;text-decoration-color:var(--qf-action)}
.qf-definition-card h3 a:hover{color:var(--qf-action)}
.qf-definition-card p{max-width:none}
.qf-boundary{border-top:1px dashed var(--qf-rule);scroll-margin-inline-start:11px;padding-top:8px;color:var(--qf-muted);font-size:.95rem;line-height:1.55;margin:auto 0 0}
.qf-boundary strong{text-transform:none;scroll-margin-inline-start:11px;color:var(--qf-ink);display:block;font-size:14px;letter-spacing:.02em}
.qf-callout{padding:12px;scroll-margin-inline-start:11px;border:2px dashed var(--qf-rule);background:var(--qf-wash)}
.qf-callout p:last-child,.qf-entry p:last-child,.qf-source-record p:last-child{margin-bottom:0}
.qf-callout h2::before{content:"[ ";color:var(--qf-ink)}
.qf-callout h2::after{content:" ]";color:var(--qf-ink)}
.qf-source-record{border-top:1px solid var(--qf-rule);padding-top:12px}
.qf-empty{padding:8px 12px;scroll-margin-inline-start:11px;border-left:1px solid var(--qf-rule);color:var(--qf-muted);background:var(--qf-card)}
.qf-entry{border-top:1px solid var(--qf-rule);padding-top:12px}
.qf-entry h2{font-size:1.35rem}
.qf-record-path ol{margin-bottom:4px;scroll-margin-inline-start:11px;column-gap:4px;flex-wrap:wrap;list-style:none;display:flex;font-size:.9rem}
.qf-record-path li+li::before{margin-right:4px;scroll-margin-inline-start:11px;content:"/";color:var(--qf-muted)}
.qf-record-path a{scroll-margin-inline-start:11px;align-items:center;min-height:44px;display:inline-flex}
.qf-lookup-result{padding:4px 12px;margin-bottom:12px;max-width:44rem;scroll-margin-inline-start:11px;border:1px solid var(--qf-rule);background:var(--qf-card)}
.qf-lookup-subjects ul{scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr);gap:4px;list-style:none;display:grid}
.qf-lookup-subjects a{padding:4px 8px;scroll-margin-inline-start:11px;text-decoration-line:none;gap:8px;align-items:center;min-height:44px;color:var(--qf-ink);border:1px solid var(--qf-rule);display:flex;background:var(--qf-card)}
.qf-lookup-subjects a:hover{border-color:var(--qf-rule)}

/* ProvenanceStrip (foot): responsibility, trust routes, publication statement */
.qf-provenance{border-top:1px solid var(--qf-rule);background:var(--qf-strip)}
.qf-provenance-inner{padding:16px 20px;max-width:1280px;scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr);gap:16px;display:grid;margin-inline:auto}
.qf-provenance-label{text-transform:none;scroll-margin-inline-start:11px;color:var(--qf-ink);font-size:14px;letter-spacing:.02em;margin:0}
.qf-provenance-name{margin-bottom:4px;font-size:1.25rem}
.qf-responsibility p{max-width:46ch}
.qf-trust ul{scroll-margin-inline-start:11px;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;list-style:none;display:grid}
.qf-trust li{border-top:1px solid var(--qf-rule);padding:4px 8px 8px;scroll-margin-inline-start:11px;display:grid;align-content:start;background:var(--qf-paper)}
.qf-trust a{scroll-margin-inline-start:11px;align-items:center;min-height:44px;display:inline-flex;font-size:1.05rem}
.qf-trust span{scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;line-height:1.4}
.qf-provenance-base{border-top:1px solid var(--qf-rule);scroll-margin-inline-start:11px;gap:8px;padding-top:12px;display:grid}
.qf-provenance-base small{max-width:64ch;scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;line-height:1.5}
.qf-provenance-base ul{scroll-margin-inline-start:11px;column-gap:12px;flex-wrap:wrap;list-style:none;display:flex}
.qf-provenance-base a{scroll-margin-inline-start:11px;align-items:center;min-height:44px;display:inline-flex;font-size:.95rem}

@media (min-width:768px){
.qf-strip-inner{padding:12px 24px 0;scroll-margin-inline-start:11px;grid-template-columns:auto minmax(0,1fr);column-gap:16px;align-items:center}
.qf-scope-line{justify-self:end;text-align:right}
.qf-subject-tabs{grid-column:1 / -1}
.qf-subject-tabs ul{scroll-margin-inline-start:11px;column-gap:4px;flex-wrap:wrap;display:flex}
.qf-subject-tabs a{top:2px;padding:4px 12px;scroll-margin-inline-start:11px;position:relative;border-width:2px 2px 0}
.qf-subject-tabs a:not([aria-current]){top:0}
.qf-workspace{padding:24px 24px 32px;scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr) 176px;column-gap:16px}
.qf-workspace>*{grid-column:1}
.qf-workspace>.qf-index-rail{padding:0 0 0 8px;scroll-margin-inline-start:11px;grid-row:1 / span 3;align-self:start;grid-column:2;background:transparent;border-width:0 0 0 2px}
.qf-workspace-record>.qf-index-rail{grid-row:1 / span 4}
.qf-workspace>.qf-index-rail+.qf-entry{border-top-color:transparent}
h1{font-size:40px}
.qf-record-meta.qf-meta-row{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:12px}
.qf-meta-row div{border-top:1px solid var(--qf-rule);grid-template-columns:minmax(0,1fr)}
.qf-meta-row div:first-child{border-top-color:var(--qf-rule)}
.qf-lookup-subjects ul{grid-template-columns:repeat(2,minmax(0,1fr))}
.qf-provenance-inner{padding:24px 24px 16px;scroll-margin-inline-start:11px;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:16px}
.qf-provenance-base{scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr) auto;align-items:center;grid-column:1 / -1}
}
@media (min-width:1024px){
.qf-strip-inner{padding:12px 32px 0}
.qf-workspace{padding:24px 32px 32px;scroll-margin-inline-start:11px;grid-template-columns:minmax(0,1fr) 208px;column-gap:24px}
.qf-workspace>.qf-index-rail{padding:0 0 0 12px}
h1{max-width:20ch;font-size:52px}
h2{font-size:1.75rem}
.qf-record-panel{padding:12px 16px;scroll-margin-inline-start:11px;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:16px;align-items:center}
.qf-card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px}
.qf-interval-key{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:12px}
.qf-provenance-inner{padding:24px 32px 16px;column-gap:24px}
.qf-trust ul{grid-template-columns:repeat(4,minmax(0,1fr))}
.qf-provenance-inner{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto}}

/* g539: restrained research header, definition rows and factual record. */
.qf-strip{border-bottom:1px solid var(--qf-rule);background:var(--qf-paper)}.qf-strip-inner{padding:10px 20px;scroll-margin-inline-start:11px;grid-template-columns:auto minmax(0,1fr);gap:8px 24px;align-items:center;min-height:64px;display:grid}.qf-subject-tabs{justify-self:end;scroll-margin-inline-start:11px;grid-row:1;grid-column:2}.qf-subject-tabs:has(details[open]){justify-self:stretch;scroll-margin-inline-start:11px;grid-row:2;grid-column:1 / -1}
.qf-ledger-name{gap:8px}.qf-ledger-name svg{height:24px;width:24px}.qf-word{scroll-margin-inline-start:11px;display:block;font-size:24px;line-height:1.2}.qf-word-base{color:var(--qf-ink)}
.qf-subject-tabs summary{cursor:pointer;padding:10px 12px;scroll-margin-inline-start:11px;min-height:44px;font-size:15px;line-height:24px}.qf-subject-tabs ul{flex-direction:column;scroll-margin-inline-start:11px;gap:8px;display:flex}.qf-subject-tabs a{top:0;padding:0;scroll-margin-inline-start:11px;border:0;font-size:15px;background:none;line-height:1.4}.qf-subject-tabs a[aria-current=page]{text-decoration:underline;box-shadow:none;scroll-margin-inline-start:11px;color:var(--qf-ink);background:none}.qf-subject-tabs a:hover{text-decoration:underline}.qf-tab-key{color:var(--qf-muted);font-size:14px}
.qf-workspace{row-gap:48px;padding-bottom:48px;scroll-margin-inline-start:11px;padding-top:48px}.qf-scope-line{justify-self:start;max-width:60ch;text-align:left;scroll-margin-inline-start:11px;font-size:14px;margin:0 0 16px}.qf-research-header{padding:0;border:0}.qf-kicker{scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;letter-spacing:0}.qf-lead{font-size:18px;line-height:1.55}.qf-action-row{display:block;margin:24px 0 0}.qf-view-subjects{padding:8px 16px;scroll-margin-inline-start:11px;min-height:44px;border-radius:6px}.qf-action-row .qf-status{max-width:60ch;scroll-margin-inline-start:11px;font-size:14px;margin:12px 0 0}
.qf-record-panel{border-top:1px solid var(--qf-rule);padding:24px 0;scroll-margin-inline-start:11px;gap:24px;border:0;background:var(--qf-paper)}.qf-record-meta{gap:8px;font-size:16px}.qf-record-meta div{padding:0;border:0}.qf-record-meta dt{font-size:14px;letter-spacing:0}.qf-record-panel .qf-interval{max-width:440px;margin:0}
.qf-definition-card{border-top:1px solid var(--qf-rule);padding:24px 0;scroll-margin-inline-start:11px;background:var(--qf-paper)}.qf-definition-card::before,.qf-definition-card::after{content:none}.qf-definition-card h3 a{color:var(--qf-action)}.qf-card-grid{gap:16px 32px}.qf-boundary{font-size:16px}.qf-callout{padding:24px;scroll-margin-inline-start:11px;border-left:1px solid var(--qf-rule);border:0;background:var(--qf-panel)}.qf-callout h2::before,.qf-callout h2::after{content:none}
.qf-provenance{border-top:1px solid var(--qf-rule);background:var(--qf-paper)}.qf-provenance-inner{gap:32px;padding-block:48px}.qf-trust ul{grid-template-columns:1fr 1fr;gap:24px}.qf-trust li{padding:0;scroll-margin-inline-start:11px;border:0;background:none}.qf-provenance-label{scroll-margin-inline-start:11px;color:var(--qf-muted);font-size:14px;letter-spacing:0}
@media(min-width:768px){.qf-strip-inner{padding:0 24px;scroll-margin-inline-start:11px;column-gap:32px;min-height:72px}.qf-subject-tabs:has(details[open]){justify-self:end;scroll-margin-inline-start:11px;grid-row:1;grid-column:2}.qf-subject-tabs summary{display:none}.qf-subject-tabs details::details-content{content-visibility:visible;display:contents}.qf-subject-tabs details:not([open])>ul,.qf-subject-tabs ul{flex-direction:row;scroll-margin-inline-start:11px;gap:24px;display:flex}.qf-subject-tabs a{top:0;padding:0;scroll-margin-inline-start:11px;border:0}.qf-workspace{grid-template-columns:minmax(0,1fr);padding-top:64px}.qf-workspace>.qf-index-rail{border-top:1px solid var(--qf-rule);padding:24px 0;scroll-margin-inline-start:11px;grid-row:auto;border-left:0;grid-column:1}.qf-lead{font-size:20px;line-height:1.5}.qf-record-panel{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.qf-provenance-inner{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.qf-strip-inner{padding-inline:32px}.qf-workspace{grid-template-columns:minmax(0,8fr) minmax(0,3fr);column-gap:48px}.qf-workspace>.qf-index-rail{border-top:0;padding:0 0 0 24px;scroll-margin-inline-start:11px;grid-row:1 / span 4;border-left:1px solid var(--qf-rule);grid-column:2}.qf-card-grid{grid-template-columns:1fr 1fr}.qf-trust ul{grid-template-columns:1fr 1fr}}

@media(max-width:767px){body{font-size:17px}header nav:has(details[open]){flex-basis:100%}header nav details[open]>summary{text-align:right}footer nav{min-width:0}}

/* g559: separated neutral sections and a soft dark end band. */
header[class]{background:var(--qf-panel)}
main[class]{background:var(--qf-paper)}
footer.qf-provenance{border-color:var(--qf-band-rule);scroll-margin-inline-start:11px;color:var(--qf-band-ink);background:var(--qf-band)}
footer.qf-provenance *{border-color:var(--qf-band-rule);color:var(--qf-band-ink)}
footer.qf-provenance a,footer.qf-provenance a[aria-current=page]{color:var(--qf-band-action)}
footer.qf-provenance a:focus-visible{outline:3px solid var(--qf-band-action);outline-offset:3px}

/* g559b: space the bands and continue the grey rhythm through the body. */
header[class],footer[class]{box-sizing:border-box;padding:34px}
main[class] > section:last-child,main[class] > aside:last-child,main[class] > nav:last-child,main[class] > article:last-child,main[class] > div:last-child,main[class] > ul:last-child,main[class] > ol:last-child{box-sizing:border-box;padding:34px;scroll-margin-inline-start:11px;background:var(--qf-wash)}
@media(max-width:600px){
header[class],footer[class],main[class] > section:last-child,main[class] > aside:last-child,main[class] > nav:last-child,main[class] > article:last-child,main[class] > div:last-child,main[class] > ul:last-child,main[class] > ol:last-child{padding:18px}
}

aside.qf-callout,aside.qf-index-rail{box-sizing:border-box;padding:34px}
@media(max-width:600px){aside.qf-callout,aside.qf-index-rail{padding:18px}}

/* Keep established panels inset when article lists are appended. */
main[class] > aside.qf-callout.qf-source-boundary,main[class] > nav.qf-lookup-subjects,main[class] > section.qf-entry,main[class] > section.qf-source-record{box-sizing:border-box;padding:34px;scroll-margin-inline-start:11px;background:var(--qf-wash)}
@media(max-width:600px){main[class] > aside.qf-callout.qf-source-boundary,main[class] > nav.qf-lookup-subjects,main[class] > section.qf-entry,main[class] > section.qf-source-record{padding:18px}}

/* g559c: an open menu is its own padded surface. */
header details nav{box-sizing:border-box;padding:34px}
@media(max-width:600px){header details nav{padding:18px}}