/* Site chrome uses neutral surfaces; green identifies GroundAct and active states.
   Loaded after styles.css. Paper images and the method animation keep their own palettes. */
:root {
  --green: #76b900;
  --dark: #151619;
  --ink: #151619;
  --muted: #62666d;
  --line: #e2e3e6;
  --soft: #f6f6f7;
}

body { background: #fff; color: var(--ink); }
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible { outline-color: var(--green); }

/* Navigation And Hero */
.nav-wrap { background: #fffffff2; border-color: var(--line); }
.brand,
.footer-content .brand { color: var(--ink); }
.brand > span:last-child { color: var(--green); }
.nav-links { color: var(--muted); }
.nav-links a:hover,
.nav-links a.active,
.nav-paper,
.nav-paper span { color: var(--ink); }
.nav-links a::after { background: var(--green); }
.hero { background: var(--dark); color: #fff; }
.hero .eyebrow { color: #b5b8bf; }
.hero-wordmark,
.hero-wordmark > span { color: var(--green); }
.hero-wordmark > .wordmark-period { color: #fff; }
.paper-subtitle { color: #b5b8bf; }
.hero-summary { color: #e2e3e6; }

/* Authors And Resources */
.authors { color: var(--ink); }
.authors sup,
.affiliations,
.author-note,
.release-status,
.release-status small { color: var(--muted); }
.affiliations .nvidia { color: var(--ink); }
.primary { background: var(--green); color: var(--ink); }
.primary:hover { background: #84cc08; }
.secondary { color: var(--ink); background: #fff; border-color: var(--line); }
.secondary:hover { background: var(--soft); }

/* Section Typography And Published-Figure Frames */
.eyebrow.dark,
.micro-label,
.note-label,
.caption-label,
#interface .eyebrow.dark,
#interface .caption-label,
.muted-title { color: var(--muted); }
.section-heading h2,
.figure-title h3,
.results-header h3,
.example-copy h3,
.citation-heading h2 { color: var(--ink); }
.section-heading > p,
.figure-panel figcaption,
.wide-figure figcaption,
.architecture-figure > figcaption,
.example-copy p { color: var(--muted); }
.figure-panel figcaption strong { color: var(--ink); }
.panel-index { color: var(--muted); border-color: var(--line); }
.zoomable:after { color: var(--ink); background: #fffffff2; border-color: var(--line); }
.soft-section,
.examples-section,
.citation-section { background: var(--soft); border-color: var(--line); }
.wide-figure,
.example-panel .zoomable { background: #fff; border-color: var(--line); }
.wide-figure figcaption,
.architecture-figure > figcaption,
.abstract,
.figure-panel,
.question-band { border-color: var(--line); }
.question-band > span,
.question-band a { color: var(--muted); }
.question-band p,
.question-band em { color: var(--ink); }
.abstract summary,
.expand-sign { color: var(--ink); }
.abstract p { color: var(--muted); }

/* Interface Comparison */
.principle-panel { background: #fff; border-color: var(--line); border-top-color: #a7aab0; }
.principle-panel.principle-reference { background: #fcfcfc; border-top-color: var(--green); }
.principle-label { color: var(--muted); }
.principle-panel h3,
.principle-reference h3 { color: var(--ink); }
.principle-panel li,
.principle-reference li { color: var(--muted); }
.principle-panel li::before { background: #a7aab0; }
.principle-reference li::before { background: var(--green); }

/* Evidence: Black Numerals And Quiet Table Selection */
.metric-strip,
.metric-strip > div,
.results-section,
.results-card { border-color: var(--line); }
.metric-strip strong { color: var(--ink); }
.metric-strip div > span,
#table-description,
.table-note,
.results-footnote { color: var(--muted); }
.results-card { background: #fff; }
.result-tabs button { color: var(--muted); }
.result-tabs button:hover { color: var(--ink); }
.result-tabs button[aria-selected=true] {
  background: var(--soft);
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--green);
}
th,
td { border-bottom-color: var(--line); }
th { background: var(--soft); color: var(--muted); }
td { color: var(--ink); }
th:nth-child(2),
td:nth-child(2) { color: var(--muted); }
tr.ours td { background: var(--soft); color: var(--ink); border-top-color: var(--line); }
tr.ours td:first-child { border-left-color: var(--green); }

/* Examples, Citation And Footer */
.example-tabs { border-color: var(--line); }
.example-tabs button { color: var(--muted); }
.example-tabs button:hover,
.example-tabs button[aria-selected=true] { color: var(--ink); }
.example-tabs button[aria-selected=true] { border-color: var(--green); }
.text-link { color: var(--ink); border-color: #a7aab0; }
.text-link:hover { border-color: var(--green); }
.closing-line p { color: var(--muted); }
.closing-line p strong { color: var(--ink); }
.copy-button { background: #fff; color: var(--muted); border-color: var(--line); }
.copy-button:hover { color: var(--ink); }
.citation-section pre { background: #fff; color: var(--muted); border-color: var(--line); }
.citation-note,
.footer-content p,
.footer-content > span { color: var(--muted); }
footer { background: #fff; border-color: var(--line); }
dialog { background: #fff; }
dialog::backdrop { background: #151619d4; }
dialog p { color: var(--muted); }
#close-dialog { color: var(--ink); }

/* Legacy Teaser Chrome: Kept Neutral If This Layout Is Reused. */
.visual-topline,
.visual-bottomline { background: var(--soft); color: var(--muted); }
.visual-topline > span:first-child,
.visual-bottomline small,
.reference-link small,
.state-row small,
.plan-row small { color: var(--muted); }
.connection-panel { background: #fff; }
.reasoning-line,
.state-row b,
.plan-row b,
.state-arrow { color: var(--ink); }
.reasoning-line mark { color: var(--ink); background: var(--soft); border-color: var(--green); }
.reference-link span { background: var(--line); }
.state-icon { border-color: var(--line); }
.scene:after { background: linear-gradient(transparent, #151619c4); }
.scene-bottom span { color: #e2e3e6; }
.entity-box { border-color: var(--green); background: transparent; }
.entity-box:before,
.entity-box:after { border-color: var(--green); }
.entity-box > span { background: var(--green); color: var(--ink); }
.plan-row .base-path { stroke: #a7aab0; }

/* The author-selected link token is the primary GroundAct mark. */
.brand-mark { width:50px; height:32px; }
.footer-content .brand-mark { width:42px; height:27px; }
.closing-line .brand-mark { width:63px; height:41px; }
.hero-wordmark { display:flex; align-items:center; justify-content:center; gap:14px; }
.hero-brand-mark { width:88px; height:57px; object-fit:contain; margin-top:3px; }
.hero-name { color:var(--green); }
.hero-name .wordmark-period { color:#fff; font-weight:400; }
@media(max-width:680px){
  .brand-mark { width:43px; height:28px; }
  .hero-wordmark { gap:9px; }
  .hero-brand-mark { width:64px; height:42px; }
  .hero-wordmark { font-size:49px; }
}

/* Evidence keeps different scientific questions on their own metric scales. */
.author-row-break { flex-basis:100%; height:0; }
#results .section-heading { max-width:none; }
.evidence-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; margin:32px 0 28px; }
.evidence-card { min-width:0; padding:23px 23px 20px; border:1px solid var(--line); background:#fff; }
.evidence-kicker { font-size:9px; letter-spacing:.8px; color:var(--muted); margin-bottom:16px; }
.evidence-card h3 { font-size:17px; font-weight:600; letter-spacing:-.4px; line-height:1.3; }
.evidence-value { margin:17px 0 24px; font-size:43px; line-height:1.1; letter-spacing:-1.5px; font-weight:600; }
.evidence-value>span { display:block; margin-top:7px; font-size:10px; font-weight:450; color:var(--muted); letter-spacing:0; }
.evidence-bars>div,.size-bars>div { display:flex; align-items:center; gap:10px; margin:9px 0; }
.evidence-bars>div>span { flex:0 0 88px; font-size:10px; color:var(--muted); }
.evidence-bars i,.size-bars i { flex:1; display:block; height:6px; background:#f0f1f3; }
.evidence-bars b,.size-bars b { display:block; height:100%; background:#afb4bc; }
.evidence-bars strong { flex:0 0 33px; font-size:10px; font-weight:500; text-align:right; font-variant-numeric:tabular-nums; }
.evidence-bars .ours b,.size-bars .ours b { background:var(--green); }
.evidence-bars .ours>span { color:var(--ink); }
.evidence-card p { margin-top:20px; font-size:10px; line-height:1.75; color:var(--muted); }
.preservation-bar { height:10px; background:#d9dde2; margin:16px 0 13px; }
.preservation-bar>span { display:block; height:100%; background:var(--green); }
.preservation-legend { display:flex; gap:22px; font-size:10px; color:var(--muted); margin-bottom:16px; }
.preservation-legend i { display:inline-block; width:6px; height:6px; margin-right:6px; background:var(--green); }
.preservation-legend>span:last-child i { background:#d9dde2; }
.scale-reference { display:flex; align-items:center; gap:44px; padding:22px 25px; background:#f6f6f7; border:1px solid var(--line); border-bottom:0; }
.scale-copy { flex:1; }
.scale-copy h3 { font-size:18px; font-weight:600; letter-spacing:-.45px; }
.scale-copy p { font-size:11px; line-height:1.8; color:var(--muted); margin-top:7px; }
.size-bars { flex:0 1 420px; }
.size-bars>div>span { flex:0 0 120px; font-size:10px; }
.size-bars strong { flex:0 0 34px; text-align:right; font-size:12px; font-weight:600; }
.size-bars i { height:8px; background:#e6e8eb; }
.size-bars b { background:#555b65; }
.benchmark-comparison { font-size:11px; line-height:1.8; padding:9px 12px; border-left:2px solid #b9bec5; margin:0 0 16px; background:#fafafa; color:#4b5058; }
#performance-table { font-size:12px; }
#performance-table th { font-size:10px; white-space:normal; min-width:67px; line-height:1.5; }
#performance-table th:first-child { min-width:220px; }
#performance-table td,#performance-table th { padding:12px 9px; }
#performance-table td:nth-child(3),#performance-table th:nth-child(3) { text-align:center; color:var(--muted); font-size:10px; min-width:35px; }
#performance-table .model-name { display:inline-block; }
.sota-badge { display:inline-block; font-size:9px; font-weight:450; padding:3px 5px; margin-left:6px; border:1px solid #d9dce1; border-radius:3px; color:#686e77; vertical-align:middle; }
#performance-table tr.sota td { background:#fafafa; border-top:1px solid #aeb3ba; }
#performance-table tr.ours td { font-weight:450; }
#performance-table tr.ours td:first-child { font-weight:700; }
#performance-table tr.not-reported td { color:#949aa3; }
#performance-table td.not-reported-note { text-align:left; font-size:10px; }
#performance-table td strong { font-weight:750; }
@media(min-width:761px){ #results .section-heading h2 { white-space:nowrap; } }
@media(max-width:900px){
  .evidence-card { padding:18px 16px; }
  .evidence-card h3 { font-size:15px; }
  .evidence-bars>div>span { flex-basis:78px; font-size:9px; }
  .evidence-bars>div { gap:6px; }
  .scale-reference { gap:25px; }
}
@media(max-width:680px){
  .author-row-break { display:none; }
  .nav-links a:last-child { display:inline; }
  .nav-links a:first-child { display:none; }
  .evidence-grid { grid-template-columns:1fr; gap:13px; margin:25px 0; }
  .evidence-card { padding:21px; }
  .evidence-value { font-size:40px; }
  .evidence-card h3 { font-size:18px; }
  .evidence-bars>div>span { flex-basis:99px; font-size:10px; }
  .scale-reference { display:block; padding:20px; }
  .size-bars { margin-top:20px; }
  .size-bars>div>span { flex-basis:110px; font-size:9px; }
  .benchmark-comparison { font-size:10px; }
  #performance-table { font-size:10px; }
  #performance-table th:first-child { min-width:208px; }
}

.evidence-value>em { font-size:27px; font-style:normal; font-weight:500; margin-left:3px; }
.evidence-pair { display:grid; grid-template-columns:1fr 1fr; gap:18px; margin:17px 0 0; }
.evidence-pair>div { min-width:0; }
.evidence-pair strong { display:block; font-size:39px; font-weight:600; line-height:1.2; letter-spacing:-1.4px; }
.evidence-pair em { font-size:22px; font-style:normal; font-weight:500; margin-left:2px; }
.evidence-pair span { display:block; font-size:10px; margin-top:9px; color:var(--muted); white-space:nowrap; }
.evidence-pair i { display:block; height:6px; margin-top:22px; background:#f0f1f3; }
.evidence-pair b { display:block; height:100%; background:var(--green); }
.evidence-pair .adverse b { background:#a4804a; }
.evidence-selectivity p { margin-top:20px; }
@media(min-width:681px) and (max-width:1000px){
  .evidence-pair { gap:10px; }
  .evidence-pair strong { font-size:31px; }
  .evidence-pair em { font-size:17px; }
  .evidence-pair span { font-size:9px; }
}