@font-face{font-family:Arc;src:url('assets/GoogleSansFlex-SemiBold.ttf') format('truetype');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:ArcHero;src:url('assets/GoogleSans-Regular.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
:root{--arcgold:#C77F00;--paper:#f5f3ee;--ink:#242624;--muted:#666962;--line:#d8d9d0;--orange:#ee6335;--orange-dark:#b33c1c;--dark:#20241f;--sans:Arial,Helvetica,sans-serif;--display:Arc,Arial,Helvetica,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6}button,a,input{touch-action:manipulation}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;color:inherit}button:disabled{cursor:default}button{border:0}img,video{display:block;max-width:100%}video{background:#171a17}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--orange);outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--display);font-weight:600}h2{font-size:clamp(38px,4.3vw,64px);line-height:1.07;letter-spacing:-2.5px}h3{line-height:1.25}em{font-style:normal}.orange-text{color:var(--orange)}.skip-link{position:fixed;left:20px;top:-80px;z-index:200;padding:12px 20px;background:white}.skip-link:focus{top:16px}.site-header{height:88px;padding:0 4.2%;display:flex;align-items:center;justify-content:space-between;gap:28px;background:rgba(245,243,238,.95);position:sticky;top:0;z-index:30;border-bottom:1px solid #24262412;backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:600;font-size:25px;letter-spacing:-1px;white-space:nowrap}.brand svg{width:30px;height:30px;fill:none;stroke:var(--orange);stroke-width:2.8}.brand-dot{color:var(--orange);margin-left:-9px}.site-header nav{display:flex;gap:35px;margin-left:auto;margin-right:30px;font-size:14px}.site-header nav a{position:relative}.site-header nav a:after{content:'';height:1px;position:absolute;left:0;right:100%;bottom:-4px;background:var(--orange);transition:right .2s}.site-header nav a:hover:after{right:0}.nav-play{font-size:14px;border:1px solid #a8aba1;border-radius:50px;padding:9px 18px;display:flex;align-items:center;gap:24px}.nav-play:hover{background:var(--ink);color:var(--paper)}.hero{margin:0 20px;position:relative;isolation:isolate;min-height:680px;height:calc(100svh - 108px);max-height:900px;overflow:hidden;background:#383b34;color:white}.hero-film,.hero-shade{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}.hero-film{object-position:64% 50%}.hero-shade{z-index:-1;background:linear-gradient(90deg,rgba(15,22,17,.83) 0%,rgba(15,22,17,.45) 35%,rgba(15,22,17,.05) 70%),linear-gradient(0deg,rgba(15,22,17,.7),transparent 35%)}.hero-copy{padding:72px 6% 110px;max-width:780px}.eyebrow{font-size:11px;letter-spacing:1.7px;font-weight:bold;display:flex;align-items:center;gap:12px}.eyebrow.light{color:#f3f1e9}.signal-dot{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px #ee633526}.hero h1{font-size:clamp(64px,6.55vw,100px);letter-spacing:-4.8px;line-height:.98;margin-top:35px}.hero h1 em{color:#ff986d}.hero-description{font-size:18px;line-height:1.5;margin:28px 0 30px;color:#e8e8df}.button{border-radius:3px;display:inline-flex;align-items:center;gap:16px;padding:15px 21px;font-size:14px;font-weight:bold;min-height:52px;transition:transform .18s,background .18s}.button:hover{transform:translateY(-2px)}.button.orange{background:var(--orange);color:#fff}.button.orange:hover{background:#d95329}.button-meta{border-left:1px solid #ffffff55;padding-left:18px;font-size:11px;font-weight:normal}.play-triangle{font-size:11px}.hero-bottom{position:absolute;bottom:27px;left:6%;right:6%;display:flex;align-items:center;justify-content:space-between;font-size:10px;letter-spacing:1.4px;color:#e5e6dc}.hero-bottom button{font-size:13px;background:transparent;color:white;display:flex;gap:10px;align-items:center}.hero-scroll{position:absolute;right:6%;top:70px;width:43px;height:43px;border:1px solid #ffffff66;border-radius:50%;text-align:center;line-height:40px;font-size:22px}.section-shell{width:min(1216px,calc(100% - 112px));margin:0 auto;padding:104px 0}.section-kicker{font-size:10px;font-weight:bold;letter-spacing:1.3px;display:flex;justify-content:space-between;gap:18px;padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:50px}.section-kicker span:last-child{color:var(--muted)}.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}.intro h2{font-size:clamp(52px,5.4vw,78px);letter-spacing:-3.5px;line-height:1.03}.intro-copy{padding-top:6px;max-width:510px}.large-copy{font-family:var(--display);font-size:25px;letter-spacing:-.6px;line-height:1.4;margin-bottom:24px}.intro-copy>p:not(.large-copy){color:var(--muted);font-size:16px;line-height:1.8}.resource-links{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;font-size:13px;align-items:flex-start}.resource-links a:first-child{border-bottom:1px solid var(--ink);padding-bottom:5px}.resource-links a:first-child span{margin-left:12px}.resource-links small{display:block;font-size:9px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}.spec-strip{margin-top:70px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr 1fr .85fr;padding:32px 0}.spec-strip>div{padding:0 22px;border-left:1px solid var(--line)}.spec-strip>div:first-child{padding-left:0;border:0}.spec-strip strong{font-family:var(--display);font-size:48px;letter-spacing:-2px;line-height:1.2}.spec-strip strong span{font:16px var(--sans);letter-spacing:0;margin-left:5px}.spec-strip p{font-size:11px;margin-top:7px;color:var(--muted)}.spec-strip .spec-note{padding-top:9px;position:relative;font-size:11px;letter-spacing:1px;line-height:2}.spec-note span{letter-spacing:0;font-size:11px;color:var(--muted)}.spec-note .mini-arrow{position:absolute;right:0;top:0;font-size:22px;color:var(--orange)}.dark-section{background:var(--dark);color:var(--paper);--muted:#b5bbae;--line:#4b5045}.dark-section .section-shell{padding-bottom:75px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:60px;margin-bottom:48px}.section-heading>p{font-size:14px;max-width:340px;color:var(--muted);line-height:1.8}.demo-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid #53584c;margin-top:56px}.demo-tabs button{background:transparent;border-bottom:2px solid transparent;text-align:left;color:#b6bcaf;font-size:13px;padding:20px 8px 20px 0;transition:color .2s}.demo-tabs button span{font-size:10px;margin-right:12px;color:#8e9886}.demo-tabs button[aria-selected=true]{border-color:var(--orange);color:white}.demo-tabs button[aria-selected=true] span{color:#ff9c74}.video-stage{margin-top:28px;background:#151714;aspect-ratio:16/9}.video-stage video{width:100%;height:100%;object-fit:contain}.demo-caption{display:grid;grid-template-columns:1fr 1fr auto;gap:32px;align-items:start;margin-top:28px}.demo-caption h3{font-size:21px;letter-spacing:-.5px}.demo-caption p{color:#b5bbae;font-size:13px;max-width:430px}.demo-index{font-size:11px;color:#a5ae9b;white-space:nowrap}.impact-heading{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end;margin-bottom:45px}.impact-heading>p{max-width:340px;font-size:15px;color:var(--muted);justify-self:end}.impact-grid{display:grid;grid-template-columns:1.8fr 1fr;gap:65px;align-items:center}.impact-media video{aspect-ratio:16/9;width:100%}.media-note{font-size:10px;color:var(--muted);padding-top:12px;letter-spacing:.2px}.impact-stat{border-top:1px solid var(--line);padding:15px 0 18px}.impact-stat strong{font-family:var(--display);font-size:64px;font-weight:600;letter-spacing:-3px;line-height:1.2;display:flex;align-items:baseline;gap:3px}.impact-stat strong>span{font-size:30px;letter-spacing:-1px}.impact-stat strong .down-arrow{color:var(--orange);margin-left:auto;font-family:var(--sans);font-size:36px}.impact-stat p{font-size:13px;margin-top:5px}.measurement-note{font-size:10px;color:var(--muted);line-height:1.8;margin-top:4px}.comparison-bars{display:grid;grid-template-columns:1fr 1fr;gap:65px;margin-top:40px;border-top:1px solid var(--line);padding-top:25px}.bar-chart h3{font-family:var(--sans);font-size:12px;font-weight:normal;margin-bottom:22px;display:flex;justify-content:space-between}.bar-chart h3 span{color:var(--muted)}.bar-row{display:grid;grid-template-columns:53px 1fr 55px;gap:15px;font-size:10px;margin-top:15px;align-items:center}.bar-track{height:7px;background:#e8e8e0}.bar-track i{height:100%;width:var(--bar);display:block;background:var(--orange)}.baseline .bar-track i{background:#9da597}.bar-row b{font-size:11px;font-weight:normal;text-align:right}.approach-section{background:#e9ede5}.approach-section .section-heading h2{font-size:clamp(36px,3.7vw,55px)}.pathway{display:grid;grid-template-columns:1fr 35px 1fr 35px 1fr;margin-top:60px;align-items:center}.pathway-node{border:1px solid #c1c9ba;padding:22px 24px;min-height:250px;display:flex;flex-direction:column;position:relative;background:#eef1ea}.node-number{font-size:11px;color:var(--muted);margin-bottom:28px}.pathway-node small{font-size:9px;letter-spacing:1.1px;opacity:.75}.pathway-node h3{font-size:24px;margin:6px 0 12px;letter-spacing:-.7px}.pathway-node p{font-size:12px;color:#575f51;line-height:1.7}.pathway-node b{font-size:10px;font-weight:normal;margin-top:30px;padding-top:12px;border-top:1px solid #b9c2b1}.pathway-node.highlighted{background:var(--orange);color:#fff;border-color:var(--orange)}.pathway-node.highlighted p,.pathway-node.highlighted .node-number{color:#fff}.pathway-node.highlighted b{border-color:#ffffff55}.pathway-arrow{font-size:22px;text-align:center;color:#829078}.method-details{display:grid;grid-template-columns:.8fr 1.6fr;gap:80px;margin-top:65px}.method-intro .eyebrow{font-size:9px;color:var(--orange-dark);margin-bottom:20px}.method-intro>p:not(.eyebrow){font-size:15px;line-height:1.7;max-width:250px}.text-button{padding:0 0 6px;background:transparent;border-bottom:1px solid #8c9583;font-size:11px;margin-top:32px;text-align:left}.text-button span{margin-left:12px}.method-accordion details{border-bottom:1px solid #c1c9ba}.method-accordion summary{list-style:none;cursor:pointer;padding:19px 0;font-family:var(--display);font-size:17px;display:flex;gap:15px;align-items:center}.method-accordion summary::-webkit-details-marker{display:none}.method-accordion summary>span{font:10px var(--sans);color:#6b7662}.method-accordion summary b{margin-left:auto;font-family:var(--sans);font-weight:normal}.method-accordion details[open] summary b{transform:rotate(45deg)}.method-accordion details>p{font-size:13px;line-height:1.85;color:#5c6555;padding:0 32px 24px}.formula{margin:0 30px 24px;padding:16px;background:#f5f6f1;font-family:monospace;font-size:15px}.formula span{color:var(--orange);padding:0 10px}.study-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.film-card{display:block;width:100%;padding:0;position:relative;background:#222;overflow:hidden}.film-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s,opacity .4s}.film-card:hover img{transform:scale(1.025);opacity:.8}.round-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid #ffffffbb;border-radius:50%;width:58px;height:58px;display:grid;place-items:center;font-size:16px;color:#fff;background:#20241f44;backdrop-filter:blur(5px)}.study-caption{padding:25px 0}.study-caption>span{font-size:9px;letter-spacing:1px;color:var(--muted)}.study-caption h3{font-size:24px;letter-spacing:-.6px;margin:12px 0}.study-caption p{font-size:13px;color:var(--muted);max-width:440px}.paper-inline{display:flex;justify-content:space-between;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;margin-top:16px;font-size:12px}.paper-inline span:last-child{color:var(--muted)}.playground-callout{position:relative;background:var(--orange);color:white;overflow:hidden}.playground-pattern{position:absolute;inset:0;background-image:linear-gradient(#ffffff0c 1px,transparent 1px),linear-gradient(90deg,#ffffff0c 1px,transparent 1px);background-size:70px 70px;mask-image:linear-gradient(90deg,transparent,#000)}.playground-callout-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;position:relative;padding-top:75px;padding-bottom:75px}.playground-callout .eyebrow{margin-bottom:25px}.playground-callout h2{font-size:clamp(42px,4.9vw,72px);letter-spacing:-3px}.playground-callout p:not(.eyebrow){font-size:14px;line-height:1.8;margin-top:24px;color:#fff1e8}.button.pale{background:var(--paper);color:var(--ink);margin-top:30px;gap:35px}.release-tag{font-size:9px;letter-spacing:.9px;display:block;margin-top:18px}.playground-art{position:relative;height:440px;border:1px solid #ffffff38;background:radial-gradient(ellipse at center,#ffffff18,transparent 70%);margin-left:50px}.playground-art:before,.playground-art:after{content:'';position:absolute;left:50%;top:50%;border:1px solid #ffffff26;border-radius:50%;width:74%;height:65%;transform:translate(-50%,-50%) rotate(-20deg)}.playground-art:after{transform:translate(-50%,-50%) rotate(25deg);height:30%}.playground-art img{position:absolute;height:135%;width:135%;object-fit:contain;max-width:none;top:-23%;left:-17%;filter:grayscale(1) contrast(1.2) brightness(1.5)}.art-caption{position:absolute;bottom:16px;left:20px;font-size:8px;letter-spacing:1px}.coordinate{font:10px monospace;position:absolute}.coordinate.x{right:12px;top:50%}.coordinate.y{left:50%;top:12px}.publication{padding-bottom:70px}.publication-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:110px}.publication h2{font-size:clamp(27px,2.6vw,40px);line-height:1.2;letter-spacing:-1.3px}.authors{font-size:13px;line-height:1.8}.authors span{color:var(--muted);font-size:11px}.publication-links{margin-top:30px}.publication-links a{display:flex;align-items:center;justify-content:space-between;font-size:13px;border-bottom:1px solid var(--line);padding:12px 0}.publication-links small{font-size:9px;text-transform:uppercase;color:var(--muted);letter-spacing:.4px}.research-summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:50px}.research-summary summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;font-size:12px;padding:18px 0}.research-summary summary::-webkit-details-marker{display:none}.research-summary p{font-size:14px;max-width:850px;line-height:1.9;color:var(--muted);padding:8px 0 25px}.site-footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:30px;padding:30px 4.2%}.site-footer .brand{font-size:22px}.site-footer p{font-size:11px;color:var(--muted)}.site-footer>a:last-child{font-size:11px}.media-dialog,.diagram-dialog{padding:0;background:#1c211b;color:#f5f3ee;border:1px solid #6b7560;width:min(1100px,92vw);max-height:90svh;overflow:auto}.media-dialog::backdrop,.diagram-dialog::backdrop{background:#0c100bea;backdrop-filter:blur(8px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;padding:15px 22px;gap:25px}.dialog-heading h2{font-size:16px;letter-spacing:0}.dialog-close{background:transparent;color:inherit;font-size:28px;width:40px;height:40px;line-height:1}.media-dialog video{width:100%;max-height:75svh}.diagram-dialog{background:var(--paper);color:var(--ink)}.diagram-dialog img{width:100%;padding:25px;background:#fff}.diagram-dialog>p{font-size:11px;padding:12px 24px}.release-ready small{color:var(--orange-dark)}
/* Dedicated policy playground */
.playground-page{background:#161c18;color:#eef2e9;min-height:100svh}.playground-page .site-header{background:#171e19eF;border-color:#374337;color:#edf1e8}.playground-page .brand-dot{color:#f19267}.playground-page .nav-play{border-color:#52614e}.playground-page .nav-play:hover{background:#e6eedf;color:#182016}.playground-main{display:grid;grid-template-columns:minmax(0,1fr) 330px;min-height:calc(100svh - 88px)}.sim-stage{position:relative;min-height:650px;overflow:hidden;background:radial-gradient(ellipse at 50% 40%,#314034,#1b241d 65%)}.sim-stage .stage-grid{position:absolute;inset:40% -40% -50%;background-image:linear-gradient(#748d6b30 1px,transparent 1px),linear-gradient(90deg,#748d6b30 1px,transparent 1px);background-size:80px 80px;transform:perspective(500px) rotateX(60deg);transform-origin:center top}.sim-stage .stage-preview{position:absolute;width:90%;height:90%;object-fit:contain;top:0;left:5%;filter:grayscale(.5) brightness(1.3);opacity:.7}.stage-topline{position:absolute;top:28px;left:32px;right:32px;display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:10px;letter-spacing:1px;color:#bdcbb5}.stage-topline span:last-child{border:1px solid #73876c;padding:5px 10px;border-radius:30px;font-size:9px}.stage-label{position:absolute;bottom:30px;left:32px;font-size:10px;color:#a9b99e;letter-spacing:1px}.stage-message{position:absolute;left:32px;bottom:76px;max-width:350px}.stage-message h1{font-size:clamp(38px,4vw,60px);line-height:1.04;letter-spacing:-2.5px}.stage-message p{font-size:13px;color:#c2ceba;line-height:1.8;margin-top:18px}.sim-sidebar{background:#20291f;border-left:1px solid #3a4635;padding:32px 26px}.sim-sidebar .eyebrow{font-size:9px;color:#b4c3a9}.sim-sidebar h2{font-size:27px;letter-spacing:-1px;margin:16px 0 14px}.sim-sidebar>p{font-size:12px;color:#b7c5ac;line-height:1.8}.soon-pill{color:#f6bc9e;background:#ee633518;border:1px solid #ee633544;font-size:10px;display:inline-block;padding:5px 9px;margin:17px 0 30px}.sim-sidebar h3{font:10px var(--sans);letter-spacing:1px;margin-bottom:16px;color:#9fb293}.scenario-buttons{display:grid;gap:9px}.scenario-buttons button{background:#263224;border:1px solid #4c5c42;text-align:left;padding:13px;color:#cbd8bf;font-size:12px}.scenario-buttons button[aria-pressed=true]{border-color:#c4e9a3;color:#e8ffcf;background:#34482c}.scenario-description{font-size:11px;color:#a9bd99;margin:16px 0 28px;min-height:60px}.launch-button{display:block;width:100%;padding:15px 10px;background:#c4e9a3;color:#26391a;font-size:12px;font-weight:bold}.launch-button:disabled{opacity:.5}.sim-sidebar .runtime-status{font-size:10px;color:#b6c6a9;text-align:center;margin-top:12px}.sidebar-link{display:block;font-size:12px;text-align:center;margin-top:28px;text-decoration:underline;text-underline-offset:5px}.runtime-frame{width:100%;height:calc(100svh - 88px);border:0;display:block}.playground-page .site-footer{border-color:#3a4635;color:#a7b59a;font-size:10px}.playground-page .site-footer p{color:#a7b59a}
@media(min-width:1600px){.hero-copy{padding-top:95px}.hero h1{font-size:110px}}@media(max-width:1050px){.section-shell{width:calc(100% - 72px);padding:80px 0}.hero{min-height:650px;height:calc(100svh - 108px)}.hero h1{font-size:80px}.intro-grid{gap:45px}.section-heading{gap:35px}.impact-grid{gap:35px;grid-template-columns:1.6fr 1fr}.impact-stat strong{font-size:56px}.method-details{gap:45px;grid-template-columns:1fr 2fr}.pathway-node{padding:20px 16px}.pathway-node h3{font-size:21px}.playground-art{margin-left:20px;height:380px}.publication-grid{gap:65px}.playground-main{grid-template-columns:minmax(0,1fr) 290px}.demo-caption{grid-template-columns:1fr 1.2fr}.demo-index{display:none}}
@media(max-width:760px){html{scroll-padding-top:78px}.site-header{height:72px;padding:0 22px;gap:20px}.brand{font-size:22px}.brand svg{width:25px}.site-header nav{display:none}.nav-play{font-size:12px;padding:7px 12px;gap:15px}.hero{margin:0 10px;min-height:650px;max-height:820px;height:calc(100svh - 82px)}.hero-film{object-position:59% center}.hero-shade{background:linear-gradient(90deg,#111c15ce,#111c1566 70%),linear-gradient(0deg,#111c15c9,transparent 60%)}.hero-copy{padding:60px 30px 120px}.hero h1{font-size:76px;letter-spacing:-4px;margin-top:40px}.hero-description{font-size:16px;margin:26px 0}.hero-copy .eyebrow{font-size:9px;letter-spacing:1px}.hero-scroll{display:none}.hero-bottom{left:30px;right:28px;font-size:8px;letter-spacing:.5px}.hero-bottom button{font-size:12px}.hero-bottom button span{display:none}.section-shell{width:calc(100% - 44px);padding:66px 0}.section-kicker{font-size:9px;letter-spacing:.8px;margin-bottom:35px;padding-bottom:18px}.section-kicker span:last-child{display:none}h2{font-size:42px;letter-spacing:-2px}.intro-grid{grid-template-columns:1fr;gap:32px}.intro h2{font-size:60px;letter-spacing:-3px}.intro-copy{max-width:none}.large-copy{font-size:23px}.intro-copy>p:not(.large-copy){font-size:14px}.resource-links{gap:28px;margin-top:25px}.spec-strip{grid-template-columns:1fr 1fr;margin-top:40px;padding:0}.spec-strip>div{padding:24px 14px;border-left:1px solid var(--line)}.spec-strip>div:nth-child(odd){border-left:0;padding-left:0}.spec-strip>div:nth-child(n+3){border-top:1px solid var(--line)}.spec-strip strong{font-size:43px}.spec-strip p{font-size:10px}.spec-strip .spec-note{padding-top:26px}.spec-note .mini-arrow{top:20px;right:15px}.section-heading{display:block;margin-bottom:32px}.section-heading>p{margin-top:24px;max-width:400px;font-size:13px}.demo-tabs{grid-template-columns:1fr 1fr;margin-top:32px}.demo-tabs button{font-size:12px;padding:16px 5px 16px 0}.demo-tabs button 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.stage-preview{top:-10%;height:90%;width:110%;left:0}.scenario-buttons{grid-template-columns:repeat(3,1fr);gap:8px}.scenario-buttons button{padding:11px;font-size:10px;text-align:center}.scenario-description{min-height:0}.runtime-frame{height:70svh}}
@media(max-width:380px){.hero h1{font-size:65px}.hero-copy{padding-left:23px;padding-right:23px}.hero-bottom{left:23px}.hero-bottom>span{font-size:7px}.hero .button{font-size:12px}.resource-links{gap:18px}.impact-stat strong{font-size:40px}.method-accordion summary{font-size:13px}.stage-topline span:last-child{font-size:7px}.stage-message h1{font-size:39px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.hero-film{display:none}.hero{background:url('assets/hero.jpg') center/cover}.hero-shade{z-index:-1}}
.diagram-dialog img{max-height:72svh;object-fit:contain}.diagram-dialog>p a{text-decoration:underline;text-underline-offset:3px}
/* ARC detail cards, inline evidence, and embedded Web MuJoCo. */
[hidden]{display:none!important}
.brand,.site-header nav button,.site-footer button,.hero-scroll{background:transparent}
.brand{padding:0}.site-header nav button{font-size:14px;padding:0;position:relative}.site-header nav button:hover{color:var(--orange-dark)}
.hero-copy{max-width:950px;padding-top:125px}.hero h1{font-size:clamp(76px,10.2vw,150px);letter-spacing:-6px;margin-top:28px;line-height:1.05}.hero-description{max-width:590px;font-size:21px;line-height:1.5;margin-top:25px;margin-bottom:36px}.hero-scroll{color:white}
.resource-links>button{padding:0 0 5px;border-bottom:1px solid var(--ink);background:transparent;font-size:13px}.resource-links>button span{margin-left:12px}.resource-links>span{font-size:13px}.resource-links>button:hover{color:var(--orange-dark)}
.arc-heading{align-items:start;gap:65px}.arc-heading h2{flex:1}.arc-motivation{flex:1;max-width:535px}.arc-motivation .eyebrow{color:var(--orange-dark);font-size:10px;margin:0 0 17px}.arc-motivation>p:not(.eyebrow){font-size:14px;line-height:1.8;color:#50594b}.arc-motivation>p+p:not(.eyebrow){margin-top:13px}
.reflex-strip{display:flex;align-items:center;gap:28px;border-block:1px solid #bcc6b4;padding:21px 0;margin:48px 0 45px;font-size:12px}.reflex-strip .strip-label{font-size:9px;letter-spacing:1px;font-weight:bold;margin-right:auto;max-width:115px}.reflex-strip small{display:block;color:#68745f;font-size:10px;margin-top:4px}.reflex-strip>b{font-weight:normal;color:#829078}.arc-section-label{display:flex;justify-content:space-between;font-size:9px;font-weight:bold;letter-spacing:1px;margin-bottom:17px;gap:20px}.arc-section-label span:last-child{font-weight:normal;color:#68745f}
.arc-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.arc-card{display:flex;flex-direction:column;align-items:stretch;text-align:left;background:#f2f5ef;border:1px solid #bac4b1;padding:22px 27px 20px;transition:background .2s,border-color .2s;color:var(--ink);min-height:300px}.arc-card:hover{background:#fff;border-color:#67785b}.arc-card[aria-expanded=true]{background:var(--orange);border-color:var(--orange);color:white}.arc-card-top{display:flex;justify-content:space-between;align-items:center;font-size:9px;letter-spacing:1px}.arc-expand{font:25px var(--sans);line-height:1}.arc-card h3{font-size:32px;letter-spacing:-1px;line-height:1.05;margin:27px 0 18px}.arc-card>p{font-size:12px;line-height:1.6;opacity:.8;margin-bottom:27px}.arc-card-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px solid #b8c4ae;padding-top:13px;font-size:10px;margin-top:auto}.arc-card[aria-expanded=true] .arc-card-bottom{border-color:#ffffff66}
.arc-panel{display:grid;grid-template-columns:1fr 1.25fr;gap:42px;padding:40px;background:#f5f7f1;border:1px solid #bac4b1;margin-top:18px;scroll-margin-top:110px}.arc-panel-copy .eyebrow{font-size:9px;letter-spacing:.9px;color:var(--orange-dark);margin-bottom:20px}.arc-panel h3{font-size:30px;letter-spacing:-.8px;margin-bottom:22px}.arc-panel-copy>p:not(.eyebrow){font-size:13px;color:#596151;line-height:1.8;margin-top:16px}.arc-panel-copy .source-note{font-size:10px!important;color:#7a8274!important;letter-spacing:.3px;margin-top:25px!important}.arc-panel figure{margin:0;padding:24px;background:#e5eadf;border:1px solid #d3dbc9}.arc-panel figcaption{font-size:8px;letter-spacing:1px;color:#647357;font-weight:bold;margin-bottom:25px}.training-flow{display:flex;align-items:center;gap:10px}.training-flow>div{flex:1}.training-flow span:not(.flow-arrow),.behavior-flow div>span{display:block;font-size:8px;letter-spacing:.8px;color:#647357;margin-bottom:8px}.training-flow strong{font-size:12px;font-weight:normal;line-height:1.5;display:block}.flow-arrow{color:var(--orange-dark)}.loop-caption{font-size:10px;color:#647357;text-align:center;border-top:1px solid #c6d0ba;padding-top:14px;margin-top:23px}.equation-card{background:#fff;border:1px solid #d3dbc9;padding:20px 24px;margin-top:16px;min-width:0}.equation-label{font-size:8px;letter-spacing:1px;color:#647357}.equation-card>p:last-child{font-size:11px;color:#68745f;line-height:1.7;margin-top:15px}.math-display{font-size:14px;overflow-x:auto;overflow-y:hidden;padding:5px 0}.math-display .katex-display{margin:15px 0}.alignment-flow{display:flex;align-items:center;justify-content:space-between;gap:12px}.alignment-flow>span:not(.policy-node){font-size:11px;max-width:70px}.alignment-flow>b{font-size:13px;color:var(--orange-dark);font-weight:normal}.policy-node{width:50px;height:50px;display:grid;place-items:center;background:var(--dark);color:white;border-radius:50%;flex-shrink:0}.alignment-diagram>p{font-size:10px;color:#68745f;line-height:1.7;margin-top:22px}.behavior-flow{display:flex;justify-content:space-between;align-items:center;gap:20px}.behavior-flow strong{font-family:var(--display);font-size:17px;letter-spacing:-.4px}.behavior-flow p{font-size:10px;color:#647357;margin-top:5px}.behavior-flow>b{color:var(--orange-dark);font-weight:normal}.prior-note{border-top:1px solid #c6d0ba;margin-top:23px;padding-top:16px}.prior-note>span{font-size:8px;letter-spacing:.9px;color:#647357}.prior-note>p{font-size:10px;margin-top:5px}.arc-task-note{grid-column:1/-1;display:flex;gap:25px;border-top:1px solid #d1dac8;padding-top:20px}.arc-task-note>span{font-size:9px;letter-spacing:.6px;white-space:nowrap;padding-top:2px;color:var(--orange-dark)}.arc-task-note>p{font-size:12px;color:#68745f}.arc-diagram-action{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:25px}.arc-diagram-action>span{font-size:9px;letter-spacing:1px;color:#68745f}.arc-diagram-action button{margin:0;font-size:12px}
.ablation-details{border-block:1px solid var(--line);margin-top:26px}.ablation-details summary{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:24px 0;cursor:pointer;list-style:none;font-size:17px;font-family:var(--display)}.ablation-details summary::-webkit-details-marker{display:none}.ablation-details summary small{font:10px var(--sans);color:var(--muted);margin-left:18px}.ablation-details summary>b{font:25px var(--sans);transition:transform .2s}.ablation-details[open] summary>b{transform:rotate(45deg)}.ablation-content{padding-bottom:28px}.table-intro{font-size:13px;max-width:780px;color:var(--muted);margin-bottom:24px}.table-scroll{overflow-x:auto;border:1px solid var(--line);background:#fafbf6}.ablation-table{border-collapse:collapse;width:100%;min-width:1060px;font-size:11px;text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}.ablation-table caption{text-align:left;font-size:10px;padding:14px 17px;color:var(--muted);border-bottom:1px solid var(--line)}.ablation-table td,.ablation-table th{padding:14px 12px;border-bottom:1px solid #dfe2d8;font-weight:normal}.ablation-table thead{background:#e8ede1}.ablation-table thead small{display:block;font-size:9px;color:var(--muted);margin-top:5px}.ablation-table .table-groups th{text-align:center;font-size:10px;letter-spacing:.2px;border-right:1px solid #d2dac8}.ablation-table th:first-child{padding-left:17px}.ablation-table tbody th{text-align:left;position:sticky;left:0;background:#fafbf6;z-index:1;box-shadow:1px 0 0 #dfe2d8}.ablation-table tbody tr.ours>*{background:#fce5d7;color:#792b15;border-bottom:0}.ablation-table td.best{font-weight:700}.table-notes{display:grid;grid-template-columns:1fr 1fr;gap:12px 30px;margin-top:20px}.table-notes p{font-size:10px;line-height:1.8;color:var(--muted)}.table-notes strong{font-weight:bold;color:var(--ink)}
.webmujoco-section{background:#20271e;color:var(--paper);--line:#4a5544;--muted:#b2bda9}.webmujoco-host{height:530px;border:1px solid #626e56;background:#151b13;overflow:hidden;position:relative}.webmujoco-placeholder{height:100%;position:relative;isolation:isolate;overflow:hidden;display:flex;align-items:center;justify-content:flex-start;padding:55px}.webmujoco-placeholder .stage-grid{opacity:.35}.webmujoco-placeholder>img{position:absolute;z-index:-1;width:86%;height:160%;object-fit:contain;right:-5%;top:-30%;opacity:.7}.webmujoco-placeholder:after{position:absolute;content:'';inset:0;background:linear-gradient(90deg,#151b13 0%,#151b1380 40%,transparent 80%);z-index:-1}.webmujoco-status .soon-pill{display:inline-block;margin-bottom:20px;border:1px solid #798b66;background:#303f27;color:#d3e3bd;font-size:10px;padding:5px 12px;border-radius:30px}.webmujoco-status h3{font-size:42px;letter-spacing:-1px}.webmujoco-status p{font-size:14px;margin-top:8px;color:#b7c4aa}.webmujoco-caption{position:absolute;left:55px;bottom:25px;font-size:8px;letter-spacing:1.3px;color:#a5b795}.webmujoco-frame{width:100%;height:100%;border:0;display:block}
.citation h2{font-size:42px;letter-spacing:-1px;margin-bottom:30px}.citation .section-kicker{margin-bottom:35px}.bibtex-pane{border:1px solid var(--line);background:#eeeee8;padding:24px 28px}.bibtex-label{font-size:9px;letter-spacing:1px;color:var(--muted)}.bibtex-pane pre{margin:12px 0 0;white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px;color:#66715a}.site-footer>button:last-child{font-size:11px}.paper-dialog{border:0;padding:0;width:min(1150px,95vw);height:90svh;max-height:94svh;background:var(--paper)}.paper-dialog::backdrop{background:#11180de6;backdrop-filter:blur(7px)}.paper-dialog iframe{width:100%;height:calc(100% - 65px);display:block;border:0}.standalone-mujoco{min-height:100svh}.standalone-mujoco .section-shell{padding-top:55px}
@media(max-width:1050px){.arc-panel{gap:28px;padding:30px;grid-template-columns:1fr 1.1fr}.arc-card{padding:20px}.arc-card h3{font-size:28px}.arc-heading{gap:35px}.reflex-strip{gap:18px}.math-display{font-size:12px}.training-flow{gap:8px}.training-flow strong{font-size:11px}.alignment-flow{gap:8px}.arc-panel figure,.equation-card{padding:20px}.arc-card-bottom{font-size:9px}}
@media(max-width:700px){.site-header .nav-play{font-size:11px;gap:12px;padding:8px 13px}.hero-copy{padding-top:105px;max-width:100%}.hero h1{font-size:clamp(57px,14.8vw,100px);letter-spacing:-3px;white-space:nowrap}.hero-description{font-size:17px;max-width:335px;margin-top:25px}.desktop-break{display:none}.arc-motivation{max-width:100%;margin-top:28px}.arc-motivation>p:not(.eyebrow){font-size:13px}.reflex-strip{display:grid;grid-template-columns:1fr auto 1fr;gap:15px;padding:20px 0;margin:30px 0}.reflex-strip .strip-label{max-width:none;grid-column:1/-1;font-size:8px;margin:0 0 4px}.reflex-strip>span:last-child{grid-column:3;grid-row:3}.reflex-strip>b:nth-last-child(2){grid-column:3;justify-self:center;transform:rotate(90deg)}.reflex-strip>span{font-size:11px}.reflex-strip small{font-size:9px}.arc-section-label{font-size:8px;display:block;line-height:1.8}.arc-section-label span{display:block}.arc-cards{grid-template-columns:1fr;gap:10px}.arc-card{min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:0 15px;padding:19px 22px}.arc-card-top{grid-column:1/-1;font-size:8px}.arc-card h3{font-size:26px;margin:12px 0 19px}.arc-card>p{font-size:11px;margin:13px 0 18px;align-self:center}.arc-card-bottom{grid-column:1/-1}.arc-panel{grid-template-columns:1fr;gap:26px;padding:23px 20px;margin-top:12px}.arc-panel h3{font-size:28px}.arc-panel-copy .eyebrow{font-size:8px;line-height:1.7;letter-spacing:.5px}.arc-panel-copy>p:not(.eyebrow){font-size:12px}.arc-panel figure,.equation-card{padding:18px 15px}.arc-panel figcaption{font-size:7px;letter-spacing:.7px}.training-flow{gap:8px}.training-flow strong{font-size:10px}.training-flow span:not(.flow-arrow){font-size:7px}.loop-caption{font-size:8px}.math-display{font-size:12px}.equation-card>p:last-child{font-size:10px}.alignment-flow{gap:6px}.alignment-flow>span:not(.policy-node){font-size:9px;max-width:50px}.alignment-flow>b{font-size:11px}.policy-node{width:38px;height:38px}.behavior-flow{gap:10px}.behavior-flow strong{font-size:14px}.behavior-flow p{font-size:9px}.arc-task-note{display:block}.arc-task-note>p{margin-top:10px;font-size:11px}.arc-diagram-action{align-items:start}.arc-diagram-action>span{font-size:8px;max-width:130px}.arc-diagram-action button{font-size:10px}.ablation-details summary{font-size:15px;padding:20px 0}.ablation-details summary small{display:block;margin:5px 0 0;font-size:9px}.table-intro{font-size:12px}.table-notes{grid-template-columns:1fr;gap:10px}.ablation-table{min-width:1030px}.ablation-table tbody th{max-width:145px;white-space:normal;font-size:10px}.webmujoco-host{height:440px}.webmujoco-placeholder{padding:25px;align-items:flex-end;padding-bottom:65px}.webmujoco-placeholder>img{height:130%;width:145%;top:-30%;right:-25%}.webmujoco-placeholder:after{background:linear-gradient(0deg,#151b13,transparent 75%)}.webmujoco-status h3{font-size:33px}.webmujoco-status p{font-size:12px}.webmujoco-caption{left:25px;bottom:23px;font-size:7px}.citation h2{font-size:35px}.bibtex-pane{padding:20px}.bibtex-pane pre{font-size:12px}.site-footer>button:last-child{margin-left:auto}.paper-dialog iframe{height:calc(100% - 53px)}}

.paper-dialog .dialog-heading{height:61px}.paper-toolbar{display:flex;align-items:center;gap:16px;padding:10px 20px;border-bottom:1px solid var(--line);height:54px}.paper-toolbar button{background:#e4e8df;padding:5px 12px;font-size:13px;border-radius:3px}.paper-toolbar button:disabled{opacity:.35}.paper-toolbar span{font-size:11px;font-variant-numeric:tabular-nums}.paper-toolbar #paper-zoom{margin-left:auto}.paper-reading-stage{height:calc(100% - 115px);overflow:auto;background:#d6d8d2;padding:20px}.paper-reading-stage img{width:min(100%,850px);margin:0 auto;background:white;box-shadow:0 1px 8px #0002}.paper-reading-stage.is-zoomed img{width:1545px;max-width:none}.paper-reading-stage.is-zoomed{padding:10px}@media(max-width:700px){.paper-reading-stage{padding:8px}.paper-toolbar{padding:8px 12px}}

/* Prominent research resources and a direct entry to the policy experience. */
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/* The physical sensing and instantaneous optimization layers preceding ARC. */
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/* Method content follows the paper in an uncluttered reading layout. */
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  .approach-editorial .arc-cards{gap:14px}
  .approach-editorial .arc-card{padding:22px;min-height:258px}
  .approach-editorial .arc-expand{right:22px;top:22px;width:34px;height:34px}
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  .approach-editorial .arc-panel{padding:34px}
}
@media(max-width:700px){
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  .approach-editorial #approach-title{font-size:40px;letter-spacing:-1.5px}
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  .approach-editorial .method-heading>p{max-width:400px;margin-top:22px;padding:0}
  .approach-editorial .foundation-options{gap:12px;margin-bottom:14px}
  .approach-editorial .foundation-option{padding:23px;min-height:178px}
  .approach-editorial .foundation-option h3{font-size:27px}
  .approach-editorial .foundation-option .card-promise{font-size:13px;margin-top:14px}
  .approach-editorial .foundation-expand{width:34px;height:34px;font-size:23px}
  .approach-editorial .foundation-panel,.approach-editorial .arc-panel{padding:25px 22px}
  .approach-editorial .sensing-panel{gap:26px}
  .approach-editorial .tactile-player{padding:8px}
  .approach-editorial .arc-heading{display:block;margin:48px 0 28px;padding:44px 0 0}
  .approach-editorial .arc-heading-copy h2{font-size:42px;letter-spacing:-1.6px}
  .approach-editorial .arc-motivation{margin-top:32px;padding:0}
  .approach-editorial .arc-motivation h3{font-size:24px;margin-bottom:16px}
  .approach-editorial .arc-motivation>p{font-size:14px}
  .approach-editorial .arc-cards{gap:12px}
  .approach-editorial .arc-card{display:block;padding:23px;min-height:218px}
  .approach-editorial .arc-number{font-size:11px;line-height:30px}
  .approach-editorial .arc-expand{top:22px;right:22px;width:32px;height:32px;font-size:23px}
  .approach-editorial .arc-card h3{font-size:29px;margin-top:19px}
  .approach-editorial .arc-card .card-promise{font-size:14px;margin-top:14px}
  .approach-editorial .math-display{padding:10px 0}
}
@media(prefers-reduced-motion:reduce){
  .approach-editorial .foundation-panel:not([hidden]),.approach-editorial .arc-panel:not([hidden]){animation:none}
  .approach-editorial .foundation-option,.approach-editorial .arc-card{transition:none}
}

/* Pair the original reflex poses with the two solver equations. */
.approach-editorial .solver-panel .method-prose{max-width:none}
.approach-editorial .solver-panel .method-prose>p{max-width:820px;margin-left:auto;margin-right:auto}
.solver-visual-row{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(350px,1fr);gap:30px;align-items:center;margin:32px 0}
.approach-editorial .solver-visual-row .reflex-pose-figure{width:100%;max-width:none;margin:0;padding:12px}
.solver-equations{display:grid;gap:18px;min-width:0}
.approach-editorial .solver-equations .math-display{margin:0;padding:14px 8px}
@media(max-width:960px){
  .solver-visual-row{grid-template-columns:minmax(0,1fr);gap:22px;margin:28px 0}
  .approach-editorial .solver-visual-row .reflex-pose-figure{max-width:620px;margin:0 auto}
}
@media(max-width:700px){
  .solver-visual-row{gap:20px;margin:25px 0}
  .approach-editorial .solver-visual-row .reflex-pose-figure{padding:8px}
  .solver-equations{gap:16px}
  .approach-editorial .solver-equations .math-display{padding:10px 0}
}

/* Paper macro: \arc uses arcgold (HTML C77F00). */
.arc-word{color:var(--arcgold)}

/* The alignment diagram and its equations follow the solver's split layout. */
.approach-editorial #arc-alignment .method-prose{max-width:none}
.approach-editorial #arc-alignment .method-prose>p{max-width:820px;margin-left:auto;margin-right:auto}
.alignment-visual-row{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(350px,1fr);gap:30px;align-items:center;margin:32px 0}
.approach-editorial .alignment-visual-row .distribution-figure{width:100%;max-width:none;margin:0}
.approach-editorial .alignment-visual-row .math-display{min-width:0;margin:0;padding:14px 8px}
@media(max-width:960px){
  .alignment-visual-row{grid-template-columns:minmax(0,1fr);gap:22px;margin:28px 0}
  .approach-editorial .alignment-visual-row .distribution-figure{max-width:620px;margin:0 auto}
}
@media(max-width:700px){
  .alignment-visual-row{gap:20px;margin:25px 0}
  .approach-editorial .alignment-visual-row .math-display{padding:10px 0}
}

/* A restrained editorial accent for the three short research promises. */
.large-copy,.approach-editorial .method-promise{font-family:Georgia,'Times New Roman',serif;font-style:italic;font-weight:400;letter-spacing:-.35px}
.spec-strip strong,.impact-stat strong{font-variant-numeric:lining-nums tabular-nums}

/* Author-built policy demo, embedded like the PHP project page. */
.demo-controls{display:flex;justify-content:flex-end;margin-bottom:12px}
.demo-controls button{display:flex;align-items:center;gap:22px;background:#303b2b;border:1px solid #69775e;border-radius:4px;padding:9px 15px;color:var(--paper);font-size:13px}
.demo-controls button[hidden]{display:none}
.demo-controls button:hover{background:#3d4d34;border-color:#adbf9d}
.webmujoco-host.demo-live{width:100%;height:auto;min-height:600px;aspect-ratio:16/9;border-radius:8px;background:#07090d}
.demo-live .webmujoco-frame{position:absolute;inset:0}
.demo-player:fullscreen{display:flex;flex-direction:column;width:100%;height:100%;background:#07090d}
.demo-player:fullscreen .demo-controls{flex-shrink:0;margin:0;padding:8px 12px}
.demo-player:fullscreen .webmujoco-host.demo-live{flex:1;width:100%;height:auto;min-height:0;aspect-ratio:auto;border:0;border-radius:0}
@media(max-width:700px){
  .webmujoco-host.demo-live{height:640px;min-height:0;aspect-ratio:auto}
}

/* Research opening: HDMI's full-bleed framing, with a coordinated paper type scale. */
.research-document{scroll-padding-top:24px}
.research-document .section-shell{width:100%;max-width:none;padding-left:16px;padding-right:16px}
@media(min-width:960px){.research-document .section-shell{max-width:900px}}
@media(min-width:1280px){.research-document .section-shell{max-width:1200px}}
@media(min-width:1920px){.research-document .section-shell{max-width:1800px}}
@media(min-width:2560px){.research-document .section-shell{max-width:2400px}}
.research-document .hero{margin:0;min-height:740px;height:100svh;max-height:none;display:flex;align-items:center;justify-content:center;text-align:center}
.research-document .hero-copy{width:100%;max-width:100%;padding:72px 16px 92px}
.research-document .hero-shade{background:linear-gradient(180deg,#0b160e52,#0b160e8c 55%,#0b160e66)}
.research-document .hero h1{margin:0 auto;max-width:none;font-family:ArcHero,Arial,Helvetica,sans-serif;font-weight:400;font-size:clamp(30px,3vw,44px);line-height:1.2;letter-spacing:-.015em;white-space:normal;color:#fff;text-wrap:balance;text-shadow:0 2px 16px #06100b66}
.hero-title-name{display:block;font-size:clamp(64px,10.6vw,152px);line-height:1;letter-spacing:-.025em;margin-bottom:25px}
.hero-title-subtitle{display:block;max-width:1440px;margin:0 auto}
.hero-title-subtitle>span{display:block}
.keep-together{white-space:nowrap}
.hero-byline{margin-top:30px;color:#fff;text-shadow:0 1px 8px #06100b66;font-family:ArcHero,Arial,Helvetica,sans-serif}
.hero-authors,.hero-affiliations,.hero-author-notes{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:center}
.hero-authors{gap:8px 24px;font-size:21px;line-height:1.5}
.hero-authors>span,.hero-affiliations>span{white-space:nowrap}
.hero-byline sup{font-size:.63em;margin-left:3px;vertical-align:super;line-height:0}
.hero-affiliations{gap:6px 22px;margin-top:10px;font-size:16px;color:#edf0e9}
.hero-affiliations sup{margin:0 4px 0 0}
.hero-author-notes{gap:18px;margin-top:9px;font-size:12px;color:#e0e6dd}
.hero-actions{display:flex;flex-wrap:wrap;align-items:stretch;justify-content:center;gap:14px;margin-top:30px}
.hero-primary-actions,.hero-resource-actions{display:flex;gap:12px}
.hero-action{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:12px 24px;border:1px solid transparent;border-radius:30px;font-family:ArcHero,Arial,Helvetica,sans-serif;font-size:16px;font-weight:400;line-height:1.3;white-space:nowrap}
.hero-action svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.hero-action-mint{position:relative;background:linear-gradient(115deg,#e1ffc5,#bde8a1 58%,#d2f8b7);color:#23341c;border-color:#d4f1b4;box-shadow:0 6px 22px #07130c29;transition:transform .2s,box-shadow .2s}
.hero-action-mint:hover{transform:translateY(-2px);box-shadow:0 0 24px #ccffa32e,0 8px 26px #07130c44}
.hero-action-mint:focus-visible{outline-color:#e1ffc5}
.hero-resource{min-width:122px;padding:9px 20px;border-color:#edf7e47a;background:#15251969;color:#fff;backdrop-filter:blur(8px);text-align:left}
.hero-resource small{display:block;margin-top:2px;font-size:10px;font-weight:400;color:#d3decf}
.hero-resource[href]:hover{background:#2c4130c9;border-color:#d3e4c6}
.research-document .hero-bottom{justify-content:flex-end}

/* Paper Abstract: readable paragraphs, selective emphasis, and a quiet results band. */
.abstract-section{background:linear-gradient(180deg,#fcfcf8 0%,var(--paper) 100%)}
.research-document .abstract-section .section-shell{padding-top:80px;padding-bottom:80px}
.abstract-heading{display:flex;justify-content:center;align-items:baseline;gap:14px;margin-bottom:36px}
.abstract-number{font:12px ArcHero,Arial,sans-serif;color:#87917e;letter-spacing:.06em}
.abstract-heading h2{font-family:ArcHero,Arial,Helvetica,sans-serif;font-size:44px;font-weight:400;line-height:1.15;letter-spacing:-1.1px}
.abstract-copy{max-width:1040px;margin:0 auto;font-family:ArcHero,Arial,Helvetica,sans-serif;font-size:19px;line-height:1.7;color:#52584d}
.abstract-copy p+p{margin-top:22px}
.abstract-copy strong{font-family:Arc,Arial,Helvetica,sans-serif;font-weight:600;color:#2f422a}
.abstract-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));max-width:1160px;margin:42px auto 0;padding:28px 0;background:#e9eee1;border:1px solid #d9e1cf;border-radius:12px;text-align:center}
.abstract-results>div+div{border-left:1px solid #cad4bf}
.abstract-results strong{display:block;font:400 48px/1.05 ArcHero,Arial,sans-serif;letter-spacing:-1.8px;color:#33482b;font-variant-numeric:tabular-nums}
.abstract-results strong span{font-size:25px;letter-spacing:-.3px;margin-left:4px}
.abstract-results p{font-size:14px;color:#5c6754;margin-top:11px}
.abstract-footer{max-width:1160px;margin:17px auto 0;display:flex;justify-content:flex-end;align-items:baseline;gap:20px;font-size:12px;color:#737b6b}
.abstract-footer button{background:transparent;padding:2px 0;border-bottom:1px solid #aeb9a2;color:#36482e;font-size:14px;white-space:nowrap}
.abstract-footer button span{margin-left:12px}
@media(max-width:760px){
  .research-document .hero{margin:0;min-height:740px;height:100svh}
  .research-document .hero-copy{padding:42px 20px 80px}
  .research-document .hero h1{font-size:clamp(24px,4.7vw,34px);line-height:1.25;letter-spacing:-.4px;text-wrap:balance}
  .hero-title-name{font-size:clamp(60px,14.5vw,102px);margin-bottom:23px;letter-spacing:-.025em}
  .hero-title-subtitle{max-width:600px}
  .hero-title-subtitle>span{display:inline}
  .hero-byline{margin-top:25px}
  .hero-authors{font-size:16px;gap:7px 16px}
  .hero-affiliations{font-size:12px;gap:6px 13px;margin-top:12px}
  .hero-author-notes{font-size:10px;gap:13px;margin-top:10px}
  .hero-actions{gap:10px;margin-top:25px}
  .hero-primary-actions{width:100%;max-width:400px;gap:10px}
  .hero-primary-actions .hero-action{flex:1;padding:12px 10px;font-size:14px;gap:7px;min-height:52px}
  .hero-action svg{width:18px;height:18px}
  .hero-resource-actions{gap:10px}
  .hero-resource{min-width:118px;min-height:48px;font-size:14px;padding:8px 15px}
  .hero-resource small{font-size:9px}
  .research-document .hero-bottom{left:24px;right:24px;bottom:24px}
  .research-document .abstract-section .section-shell{padding-top:52px;padding-bottom:52px;padding-left:24px;padding-right:24px}
  .abstract-heading{margin-bottom:28px;gap:10px}
  .abstract-heading h2{font-size:36px;letter-spacing:-.8px}
  .abstract-copy{font-size:17px;line-height:1.7}
  .abstract-copy p+p{margin-top:20px}
  .abstract-results{margin-top:30px;padding:22px 0;border-radius:9px}
  .abstract-results strong{font-size:34px;letter-spacing:-1.2px}
  .abstract-results strong span{font-size:18px;margin-left:2px}
  .abstract-results p{font-size:11px;line-height:1.45;margin:9px auto 0;max-width:90px;padding:0 5px}
  .abstract-footer{display:block;margin-top:14px;font-size:11px}
  .abstract-footer button{margin-top:18px;font-size:13px}
}
@media(max-width:370px){
  .research-document .hero-copy{padding-left:16px;padding-right:16px}
  .hero-primary-actions{gap:8px}
  .hero-primary-actions .hero-action{font-size:12px;padding:11px 8px;gap:6px}
  .hero-authors{gap:7px 13px;font-size:15px}
  .abstract-results strong{font-size:29px}
  .abstract-results strong span{font-size:15px}
}
/* Readability: larger labels, captions, and body copy */
.section-kicker{font-size:12px}
.section-heading>p{font-size:16px}
.impact-heading>p{font-size:17px}
.demo-tabs button{font-size:15px}
.demo-tabs button span{font-size:12px}
.demo-caption p{font-size:15px}
.demo-index{font-size:12px}
.media-note,.measurement-note{font-size:12px}
.impact-stat p{font-size:15px}
.bar-chart h3{font-size:14px}
.bar-row{font-size:12px}
.bar-row b{font-size:13px}
.study-caption>span{font-size:11px}
.study-caption p{font-size:15px}
.ablation-details summary small{font-size:12px}
.table-intro{font-size:15px}
.ablation-table{font-size:13px}
.ablation-table caption,.ablation-table .table-groups th{font-size:12px}
.ablation-table thead small{font-size:11px}
.table-notes p{font-size:13px}
.bibtex-label{font-size:11px}
.bibtex-pane pre{font-size:14px}
.site-footer p,.site-footer>button:last-child{font-size:13px}
.hero-author-notes{font-size:13px}
.hero-resource small{font-size:11px}
.abstract-results p{font-size:15px}
.method-prose>p{font-size:17px}
.approach-editorial .arc-motivation>p{font-size:16px}
.approach-editorial .card-promise,.approach-editorial .foundation-option .card-promise{font-size:16px}
.approach-editorial .arc-card .card-promise{font-size:15px}
@media(max-width:760px){
  .section-kicker{font-size:11px}
  .section-heading>p,.impact-heading>p{font-size:15px}
  .demo-tabs button{font-size:14px}
  .demo-tabs button span{font-size:11px}
  .demo-caption p,.study-caption p,.table-intro{font-size:14px}
  .media-note,.measurement-note,.hero-resource small{font-size:11px}
  .impact-stat p{font-size:13px}
  .study-caption>span{font-size:10px}
  .ablation-details summary small{font-size:11px}
  .ablation-table tbody th{font-size:12px}
  .table-notes p,.site-footer p{font-size:12px}
  .bibtex-pane pre{font-size:13px}
  .hero-author-notes{font-size:11px}
  .abstract-results p{font-size:12px}
  .method-prose>p,.approach-editorial .arc-panel .method-prose>p{font-size:16px}
  .approach-editorial .arc-motivation>p{font-size:15px}
}