:root{--ink:#172435;--muted:#536174;--blue:#234dd2;--line:#dce1e8;--paper:#fafbfd;--serif:Georgia,'Times New Roman',serif;--sans:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;color:var(--ink);background:var(--paper);font:17px/1.7 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:5px;text-decoration-thickness:1px}a:hover{color:var(--blue)}a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:5px}img{max-width:100%;display:block}.wrap{width:min(1152px,calc(100% - 96px));margin:auto}.skip{position:absolute;top:-100px;left:20px;background:white;padding:10px;z-index:9}.skip:focus{top:12px}header{border-bottom:1px solid var(--line)}.header-inner{min-height:100px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{font-weight:600;text-decoration:none;letter-spacing:-.03em;font-size:20px}nav{display:flex;gap:30px;flex-wrap:wrap}nav a{font-size:14px;text-decoration:none}nav a[aria-current=page]{color:var(--blue)}.hero{display:grid;grid-template-columns:1.35fr .8fr;gap:92px;align-items:center;padding:82px 0 88px}.eyebrow{color:var(--blue);font-size:13px;font-weight:600;letter-spacing:.11em;text-transform:uppercase;margin:0 0 22px}h1,h2,h3,p{margin-top:0}h1{font:normal clamp(3.5rem,7vw,6rem)/1.03 var(--serif);letter-spacing:-.055em;margin-bottom:24px}.role{font-size:20px;margin-bottom:14px}.hero-copy{font-size:21px;line-height:1.6;max-width:510px;color:var(--muted);margin-bottom:30px}.links{display:flex;gap:22px;flex-wrap:wrap}.links a{font-size:14px}.portrait{margin:0;position:relative}.portrait img{width:100%;height:398px;object-fit:cover;object-position:50% 45%;border-radius:3px}.section{border-top:1px solid var(--line);padding:58px 0 68px;display:grid;grid-template-columns:250px 1fr;gap:60px}.section-label .index{font-size:12px;color:var(--blue);letter-spacing:.1em;display:block;margin-bottom:12px}h2{font:normal 36px/1.16 var(--serif);letter-spacing:-.035em}.section-label p{font-size:14px;color:var(--muted);line-height:1.6;max-width:205px}.prose p{margin-bottom:22px}.prose p:last-child{margin-bottom:0}.prose a,.timeline p a,.paper a,.contact a{color:var(--blue)}.timeline{list-style:none;padding:0;margin:0}.timeline li{position:relative;border-left:1px solid var(--line);padding:0 0 39px 32px}.timeline li:before{content:'';position:absolute;left:-5px;top:10px;width:9px;height:9px;border:2px solid var(--blue);background:var(--paper);border-radius:50%}.timeline li:first-child:before{background:var(--blue)}.timeline li:last-child{padding-bottom:0;border-left-color:transparent}.timeline .date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;display:block;margin-bottom:7px}.timeline h3{font-size:21px;line-height:1.35;font-weight:600;letter-spacing:-.02em;margin-bottom:4px}.timeline .position{font-size:16px;margin-bottom:8px}.timeline p{font-size:15px;color:var(--muted);line-height:1.65;margin-bottom:4px}.tag{display:inline-block;color:var(--blue);background:#edf1ff;padding:2px 9px;border-radius:3px;font-size:11px;font-weight:600;letter-spacing:.025em;margin-left:10px;vertical-align:3px}.section-cta{font-size:17px}.page-heading{padding:70px 0 50px;max-width:820px}.page-heading h1{font-size:clamp(3rem,6vw,4.5rem)}.page-heading p{color:var(--muted);font-size:19px;max-width:670px}.year-group{display:grid;grid-template-columns:140px 1fr;gap:60px;border-top:1px solid var(--line);padding:40px 0 6px}.year-group h2{font-size:32px;color:var(--blue)}.paper{padding:0 0 30px;margin:0 0 28px;border-bottom:1px solid var(--line)}.paper:last-child{border:0}.paper h3{font:500 20px/1.45 var(--sans);letter-spacing:-.015em;margin-bottom:10px}.paper p{font-size:15px;color:var(--muted);margin-bottom:8px}.paper .venue{color:var(--ink)}.paper .paper-links{display:flex;flex-wrap:wrap;gap:20px;font-size:14px}.contact{min-height:340px;max-width:700px}.contact h2{font-size:30px}.contact p{margin-bottom:25px}footer{margin-top:10px;border-top:1px solid var(--line);padding:30px 0 36px}.footer-inner{display:flex;justify-content:space-between;gap:24px;align-items:center}.footer-inner p{font-size:13px;color:var(--muted);margin:0}.footer-inner .links{gap:20px}.footer-inner a{font-size:13px}.empty-page{min-height:60vh;padding:80px 0}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding-bottom:75px}.contact-grid>div{border-top:1px solid var(--line);padding-top:30px}.contact-address{font-style:normal;font-size:18px;overflow-wrap:anywhere}.back{font-size:14px;color:var(--blue)}@media(min-width:1400px){.hero{padding-top:100px;padding-bottom:105px}}@media(max-width:900px){.wrap{width:calc(100% - 56px)}.hero{gap:38px;grid-template-columns:1.1fr .8fr;padding:60px 0}.portrait img{height:330px}.hero-copy{font-size:19px}.section{grid-template-columns:190px 1fr;gap:30px}.year-group{grid-template-columns:90px 1fr;gap:30px}}@media(max-width:640px){.wrap{width:calc(100% - 40px)}.header-inner{min-height:95px;gap:16px;align-items:flex-start;justify-content:center;flex-direction:column;padding:19px 0}nav{gap:23px}nav a{font-size:13px}.hero{grid-template-columns:1fr;padding:44px 0 42px;gap:34px}.hero h1{font-size:58px}.hero .eyebrow{margin-bottom:18px}.role{font-size:18px}.hero-copy{font-size:19px}.portrait img{height:330px;object-position:50% 42%}.section{grid-template-columns:1fr;padding:35px 0 42px;gap:15px}.section-label h2{font-size:32px;margin-bottom:15px}.section-label p{max-width:none}.section-label .index{margin-bottom:8px}.prose{font-size:16px}.timeline li{padding-left:23px}.timeline h3{font-size:19px}.year-group{grid-template-columns:1fr;gap:4px;padding-top:30px}.year-group h2{font-size:27px}.paper h3{font-size:19px}.page-heading{padding:45px 0 30px}.page-heading p{font-size:17px}.footer-inner{align-items:flex-start;flex-direction:column;gap:14px}.contact-grid{grid-template-columns:1fr;gap:20px;padding-bottom:40px}.contact{min-height:0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{header,footer,.skip{display:none}.wrap{width:100%}.hero{padding:20px 0}.portrait img{height:240px}.section{padding:20px 0}.timeline li,.paper{break-inside:avoid}}
/* Modern dark theme. */
:root{--ink:#ecf1f8;--muted:#a2aec0;--blue:#80adff;--line:#283343;--paper:#0b111b;--serif:var(--sans)}
body{background:radial-gradient(ellipse 850px 620px at 90% 0%,#152b49 0%,transparent 78%),var(--paper)}
header{background:rgba(11,17,27,.82);border-bottom-color:#263244}
.brand{font-size:20px;font-weight:650}
nav a{font-size:14px;color:#aab7ca;transition:color .18s ease}nav a:hover{color:#fff}
.hero{position:relative;gap:80px;padding-top:90px;padding-bottom:90px}
.eyebrow{color:#80adff;font-size:12px;font-weight:600;letter-spacing:.14em}
.hero h1{font-family:var(--sans);font-weight:650;font-size:clamp(3.5rem,7vw,6rem);line-height:1.02;letter-spacing:-.065em;max-width:650px}
.role{color:#a6c6ff;font-size:21px;font-weight:500}
.hero-copy{font-size:22px;line-height:1.55;color:#a2aec0;max-width:470px}
.hero .links{gap:10px}
.hero .links a{font-size:14px;border:1px solid #34465e;background:#142133;border-radius:7px;padding:8px 14px;text-decoration:none;color:#dce8fa;transition:background .18s ease,border-color .18s ease}
.hero .links a:hover{background:#213957;border-color:#759bd2;color:white}
.portrait{margin:0;padding:9px;background:#172333;border:1px solid #344960;border-radius:18px;box-shadow:0 18px 70px #0005}
.portrait img{height:398px;border-radius:10px;object-position:50% 45%}

.section-label .index{font-size:12px;color:#80adff;font-weight:600;letter-spacing:.13em}
.section-label h2{font-family:var(--sans);font-size:31px;font-weight:600;line-height:1.15;letter-spacing:-.045em;color:#edf3fc}
.section-label p{color:#94a3b8}
.prose{color:#c0cad8}.prose a{color:#8eb7ff}
.timeline li{border-left-color:#31415a;padding-left:34px}
.timeline li:before{border-color:#729fe9;width:10px;height:10px;left:-5px;box-shadow:0 0 0 5px var(--paper)}
.timeline li:first-child:before{background:#80adff;box-shadow:0 0 0 5px var(--paper),0 0 18px #659cf977}
.timeline .date{display:inline-block;color:#9badc4;font-size:13px;margin-bottom:8px;font-variant-numeric:tabular-nums}
.timeline h3{font-weight:600;color:#e8effa;letter-spacing:-.025em}
.timeline p{color:#9faec3}.timeline .position{color:#c5d5ed}.timeline strong{color:#c5d5ed;font-weight:500}
.tag{background:#203859;color:#9fc5ff;border:1px solid #365886;border-radius:4px;font-size:11px;padding:2px 9px}
.section-cta{display:inline-flex;align-items:center;background:#95baff;color:#101c2d!important;padding:11px 19px;border-radius:7px;text-decoration:none;font-size:15px;font-weight:550}
.section-cta:hover{background:#b4ceff}
.page-heading h1{font-family:var(--sans);font-weight:600;letter-spacing:-.055em}
.year-group h2{font-family:var(--sans);font-weight:500;color:#80adff;letter-spacing:-.04em}
.paper h3{color:#e3edfc;font-weight:550}.paper p{color:#a2aec0}.paper p strong{color:#e6effc;font-weight:550}.paper .venue{color:#bacbe3}
.paper .paper-links{gap:8px}
.paper .paper-links a{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;font-size:14px;padding:3px 11px;background:#16243a;border:1px solid #293e5b;border-radius:5px;text-decoration:none;color:#9ec5ff}
.paper .paper-links a:hover{background:#243b5b;color:#d9e8ff}
.contact-grid>div{background:#121e2d;border:1px solid #293a51;padding:28px;border-radius:12px}
.contact-grid h2{font-family:var(--sans);font-size:27px;font-weight:550;letter-spacing:-.04em}
footer{background:#0e1724;border-color:#283343}.footer-inner p{color:#95a4b9}.footer-inner a{color:#b5c6df}
.skip{background:#12233d;color:white}
@media(max-width:900px){.hero{gap:35px;padding-top:65px;padding-bottom:65px}.portrait img{height:340px}.hero-copy{font-size:20px}.hero .links a{padding:7px 11px}}
@media(max-width:640px){.hero{gap:34px;padding-top:42px;padding-bottom:42px}.hero h1{font-size:57px}.hero-copy{font-size:20px}.role{font-size:19px}.hero .links{gap:8px}.hero .links a{font-size:14px;padding:7px 10px}.portrait{padding:8px;border-radius:14px}.portrait img{height:335px;border-radius:8px}.timeline li{padding-left:25px}.section-label h2{font-size:30px}.contact-grid>div{padding:23px}}
@media(prefers-reduced-motion:reduce){.hero .links a,nav a{transition:none}}
@media print{body{background:white;color:#111}:root{--ink:#111;--muted:#333;--blue:#234a81;--line:#ccc;--paper:#fff}.prose,.timeline h3,.timeline p,.timeline .position,.timeline strong,.section-label h2,.paper h3,.paper p,.paper .venue,.year-group h2{color:#111}.portrait{box-shadow:none;background:white}.hero .links a,.tag{background:white;color:#111;border-color:#aaa}}

/* Original organization logos and social identities. */
.links a{display:inline-flex;align-items:center;gap:8px}
.social-icon{display:inline-block;width:22px;height:22px;flex:0 0 22px;vertical-align:middle}
.social-icon--mono{filter:brightness(0) invert(1);opacity:.9}
.social-icon--scholar{filter:none;opacity:1}
.paper-links .social-icon{width:18px;height:18px;flex:0 0 18px}
.hero .links{display:grid;grid-template-columns:repeat(2,max-content);gap:10px}
.timeline-entry{display:grid;grid-template-columns:80px minmax(0,1fr);gap:22px;align-items:start}
.org-logos{display:flex;flex-direction:column;gap:10px;padding-top:3px}
.org-logos img{display:block;width:80px;height:80px;object-fit:contain;border:0;border-radius:0;background:transparent}
.timeline-content{min-width:0}
.footer-inner .social-icon{width:19px;height:19px;flex-basis:19px}
@media(min-width:1200px){.hero .links{grid-template-columns:repeat(4,max-content)}}
@media(max-width:640px){.timeline-entry{grid-template-columns:60px minmax(0,1fr);gap:15px}.org-logos img{width:60px;height:60px}.timeline li{padding-left:19px}.timeline h3{font-size:18px}.timeline .position{font-size:15px}.timeline .date{font-size:12px}.tag{margin-left:0;vertical-align:2px}}
@media print{.social-icon--mono{filter:none}}

/* Keep touch scrolling while disabling page-zoom gestures on phone layouts. */
@media(max-width:900px){html,body{touch-action:pan-x pan-y}}

/* Theme selection. Dark is the default; visitors can keep a light preference. */
:root{color-scheme:dark}
.header-tools{display:flex;align-items:center;gap:28px}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:36px;padding:7px 10px;border:1px solid #34465e;border-radius:7px;background:#142133;color:#dce8fa;font:500 13px/1 var(--sans);cursor:pointer;white-space:nowrap}
.theme-toggle:hover{background:#213957;border-color:#759bd2}
.theme-toggle svg{width:17px;height:17px;flex:0 0 17px}
.theme-icon-moon{display:none}
.org-logos .org-logo--openai{filter:brightness(0) invert(1)}
:root[data-theme=light]{color-scheme:light;--ink:#182638;--muted:#53647a;--blue:#235eae;--line:#dbe3ee;--paper:#e9edf2}
[data-theme=light] body{background:radial-gradient(ellipse 850px 620px at 90% 0%,#d6dfe9 0%,transparent 78%),var(--paper)}
[data-theme=light] header{background:#e1e6eded;border-bottom-color:#c6d0dd}
[data-theme=light] nav a{color:#526177}
[data-theme=light] nav a:hover,[data-theme=light] nav a[aria-current=page]{color:#174e95}
[data-theme=light] .eyebrow,[data-theme=light] .section-label .index,[data-theme=light] .year-group h2{color:#235eae}
[data-theme=light] .role{color:#2a5c9e}
[data-theme=light] .hero-copy,[data-theme=light] .section-label p,[data-theme=light] .timeline p,[data-theme=light] .paper p{color:#53647a}
[data-theme=light] .hero .links a{background:#dce5f0;border-color:#bdcbdc;color:#244769}
[data-theme=light] .hero .links a:hover{background:#dce9f9;border-color:#92afd7;color:#143f77}
[data-theme=light] .portrait{background:#d3dde8;border-color:#bbcbdc;box-shadow:0 18px 60px #203f6614}
[data-theme=light] .section-label h2,[data-theme=light] .timeline h3,[data-theme=light] .paper h3,[data-theme=light] .paper p strong{color:#182638}
[data-theme=light] .prose{color:#35485e}
[data-theme=light] .prose a{color:#235eae}
[data-theme=light] .timeline li{border-left-color:#ccd8e7}
[data-theme=light] .timeline li:last-child{border-left-color:transparent}
[data-theme=light] .timeline li:before{border-color:#4779be}
[data-theme=light] .timeline li:first-child:before{background:#4779be;box-shadow:0 0 0 5px var(--paper),0 0 16px #4779be25}
[data-theme=light] .timeline .date{color:#63758a}
[data-theme=light] .timeline .position,[data-theme=light] .timeline strong,[data-theme=light] .paper .venue{color:#354f6e}
[data-theme=light] .tag{background:#e5effc;border-color:#c5d7ef;color:#285c9e}
[data-theme=light] .section-cta{background:#245caa;color:#fff!important}
[data-theme=light] .section-cta:hover{background:#174887}
[data-theme=light] .paper .paper-links a{background:#dce5f0;border-color:#bdcbdc;color:#285b9a}
[data-theme=light] .paper .paper-links a:hover{background:#dce9f9;color:#143f77}
[data-theme=light] .contact-grid>div{background:#f0f3f7;border-color:#c6d2e0}
[data-theme=light] footer{background:#dce3eb;border-color:#c6d0dd}
[data-theme=light] .footer-inner p{color:#607086}
[data-theme=light] .footer-inner a{color:#405a7b}
[data-theme=light] .social-icon--mono,[data-theme=light] .org-logos .org-logo--openai,[data-theme=light] .org-logos .org-logo--aub{filter:none}
[data-theme=light] .theme-toggle{background:#dce5f0;border-color:#bdcbdc;color:#244769}
[data-theme=light] .theme-toggle:hover{background:#dce9f9;border-color:#92afd7}
[data-theme=light] .theme-icon-sun{display:none}
[data-theme=light] .theme-icon-moon{display:block}
@media(max-width:900px){.header-tools{gap:16px}nav{gap:20px}}
@media(max-width:640px){.header-tools{width:100%;gap:12px;justify-content:space-between}.header-tools nav{gap:12px;flex-wrap:nowrap}.header-tools nav a{font-size:13px}.theme-toggle{width:32px;min-height:32px;padding:6px;flex:0 0 32px}.theme-toggle-label{display:none}}
@media print{.theme-toggle{display:none}}

/* Transparent organization marks, with contrasting artwork in each theme. */
.org-logos .org-logo--uber{filter:brightness(0) invert(1)}
.microsoft-mark{width:80px;display:flex;flex-direction:column;align-items:center;gap:8px;padding-top:3px;color:var(--ink);text-align:center;font:500 12px/1.2 var(--sans)}
.org-logos .microsoft-mark img{width:46px;height:46px}
[data-theme=light] .org-logos .org-logo--uber{filter:none}
@media(max-width:640px){.microsoft-mark{width:60px;font-size:10px;gap:6px}.org-logos .microsoft-mark img{width:36px;height:36px}}

.org-logos .org-logo--mit,.org-logos .org-logo--cmu,.org-logos .org-logo--aub{filter:none}
[data-theme=light] .org-logos .org-logo--mit,[data-theme=light] .org-logos .org-logo--cmu{filter:none}

.org-logo--ri{display:block;width:80px;height:80px;background:#8b0d26;mask-image:linear-gradient(#fff,#fff),url('/assets/robotics-institute.jpg');mask-mode:alpha,luminance;mask-size:contain;mask-position:center;mask-repeat:no-repeat;mask-composite:subtract}
@media(max-width:640px){.org-logo--ri{width:60px;height:60px}}