:root{--bg:#06141d;--bg2:#0b2029;--panel:#102934;--line:rgba(205,237,237,.16);--text:#f4f7f5;--muted:#acc0c2;--cyan:#8fe8e3;--sea:#32b7bd;--orange:#f5a463;--serif:Georgia,"Times New Roman",serif;--sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
img,video{max-width:100%;display:block}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit}
button:focus-visible,a:focus-visible,video:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
::selection{background:#b7f5eb;color:#06212a}
.container{width:min(1200px,calc(100% - 80px));margin:auto}
.skip{position:absolute;left:16px;top:-80px;background:#fff;color:#06141d;padding:10px 18px;z-index:100}
.skip:focus{top:16px}
.site-header{height:74px;padding:0 max(40px,calc((100vw - 1200px)/2));display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid rgba(255,255,255,.13);background:rgba(4,17,25,.88);backdrop-filter:blur(18px);position:sticky;top:0;z-index:30}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:760;letter-spacing:-.065em;font-size:23px;white-space:nowrap;line-height:1}
.brand-emphasis{color:var(--cyan)}
.brand-mark{width:28px;height:28px;border:2px solid var(--cyan);border-radius:50%;position:relative;display:grid;place-items:center;transform:rotate(-18deg)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--cyan);border-radius:50%;width:11px;height:24px;opacity:.8}
.brand-mark:after{width:23px;height:8px}
.brand-mark i{display:block;width:4px;height:4px;border-radius:50%;background:#fff}
.site-header nav{display:flex;gap:28px;margin-left:auto}
.site-header nav a{font-size:13px;color:#c4d4d4;font-weight:600;transition:color .2s}
.site-header nav a:hover{color:#fff}
.header-status{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:#a9c1bf;border:1px solid var(--line);padding:8px 11px;border-radius:99px;white-space:nowrap}
.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--cyan);margin-right:5px;vertical-align:1px}
.hero{min-height:745px;position:relative;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}
.hero-image{position:absolute;inset:0;background:url("images/hero-drone.webp") center 45%/cover no-repeat;transform:scale(1.015)}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,14,22,.98) 0%,rgba(3,18,26,.91) 39%,rgba(2,15,23,.34) 82%),linear-gradient(0deg,rgba(3,17,24,.96) 0%,transparent 25%,rgba(2,12,20,.08) 80%)}
.hero-content{position:relative;z-index:1;padding-top:116px;padding-bottom:50px}
.eyebrow,.kicker{font-size:11px;font-weight:760;text-transform:uppercase;letter-spacing:.25em;color:var(--cyan)}
.eyebrow{display:flex;align-items:center;gap:14px;margin:0 0 24px}
.eyebrow-line{display:block;width:29px;height:1px;background:var(--cyan)}
h1,h2,h3,p{margin-top:0}
h1,h2{font-family:var(--serif);font-weight:400;letter-spacing:-.048em;line-height:1.03}
h1{font-size:clamp(46px,5.4vw,80px);margin:0 0 29px;max-width:1130px;line-height:1.08}
h1 em,h2 em{color:var(--cyan);font-weight:400}
.hero-description{max-width:615px;color:#d2e1df;font-size:17px;line-height:1.75;margin-bottom:31px}
.hero-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 19px;border-radius:4px;font-size:13px;font-weight:750;letter-spacing:.01em;white-space:nowrap}
.button-primary{background:var(--cyan);color:#05202a}
.button-outline{border:1px solid #c5e2e0;color:#e6f5f2}
.button-note{font-size:10px;opacity:.7;font-weight:650}
.button-text{color:var(--cyan)}
.hero-bottom{position:relative;z-index:1;border-top:1px solid rgba(213,241,239,.27);padding:23px 0 28px;display:grid;grid-template-columns:repeat(3,minmax(150px,1fr)) 1.3fr;align-items:end;gap:23px}
.hero-bottom>div{display:flex;flex-direction:column}
.hero-bottom strong{font-family:var(--serif);font-size:36px;font-weight:400;letter-spacing:-.03em;line-height:1}
.hero-bottom div span{font-size:11px;text-transform:uppercase;letter-spacing:.13em;color:#bdd0d0;margin-top:8px}
.hero-bottom p{margin:0 0 2px;text-align:right;color:#e5f0ee;font-size:13px;font-weight:650}
.hero-bottom p span{color:var(--cyan);margin:0 7px}
.section{padding:102px 0}
.section-heading{margin-bottom:47px}
.section-heading-grid{display:grid;grid-template-columns:1.05fr .78fr;align-items:end;gap:75px}
.kicker{margin:0 0 19px}
h2{font-size:clamp(42px,5.1vw,68px);margin-bottom:0}
.section-heading-grid>p,.section-heading.compact>p:last-child{color:#bcd1d0;font-size:16px;line-height:1.8;max-width:510px;margin:0 0 7px}
.section-heading.compact h2{margin-bottom:19px}
.intro-section{background:#071821}
.intro-grid{display:grid;grid-template-columns:minmax(0,1.63fr) minmax(280px,.75fr);gap:28px;align-items:stretch}
.video-shell{background:#0d2630;padding:9px;border:1px solid var(--line);box-shadow:0 26px 60px rgba(0,0,0,.18)}
.video-shell video{width:100%;aspect-ratio:16/9;object-fit:cover;background:#030b11}
.video-caption{padding:13px 9px 5px;display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.video-caption strong{color:#fff;font-weight:650}
.video-caption>span:last-child{margin-left:auto}
.live-line{display:block;width:18px;height:2px;background:var(--cyan)}
.intro-note{border:1px solid var(--line);padding:27px 27px 21px;background:linear-gradient(160deg,#12303b,#0b222b);display:flex;flex-direction:column}
.mini-index{color:var(--cyan);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.18em}
.intro-note h3{font:400 30px/1.13 var(--serif);letter-spacing:-.035em;margin:25px 0 16px}
.intro-note p{font-size:13px;color:#bfcece;line-height:1.73}
.intro-note .fineprint{font-size:11px;border-top:1px solid var(--line);padding-top:14px;margin-top:auto;margin-bottom:0;color:#8fa9aa}
.data-section{background:#f3f5f2;color:#0c242c}
.data-section .kicker{color:#16878b}
.data-section h2 em{color:#16878b}
.data-section .section-heading.compact>p:last-child{color:#53696b}
.dataset-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.dataset-card{background:#fff;box-shadow:0 18px 40px rgba(7,39,43,.07);display:flex;flex-direction:column}
.dataset-photo{height:230px;background-size:cover;background-position:center}
.synthetic-card .dataset-photo{background-image:url("images/hero-quadruped.webp")}
.real-card .dataset-photo{background-image:url("images/real-plaza.webp")}
.dataset-body{padding:26px 30px 28px;display:flex;flex-direction:column;flex:1}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#667c7c;font-size:11px;font-weight:680}
.category{padding:6px 10px;border-radius:3px;font-size:10px;font-weight:830;letter-spacing:.095em;text-transform:uppercase;white-space:nowrap}
.category-s{background:#dbf4ee;color:#117f72}
.category-r{background:#e2e9f7;color:#365d9a}
.category-a{background:#f4e9db;color:#915a20}
.dataset-body h3{font:400 36px/1.05 var(--serif);letter-spacing:-.04em;margin:23px 0 15px}
.dataset-body p{color:#566a6d;font-size:13px;line-height:1.75;margin-bottom:22px;max-width:460px}
.card-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid #dde6e5;border-bottom:1px solid #dde6e5;padding:18px 0;margin-top:auto}
.card-stats div{display:flex;flex-direction:column;gap:2px}
.card-stats strong{font:400 25px/1.1 var(--serif)}
.card-stats span{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:#657a7b}
.dataset-body .license-note{max-width:none;margin:17px 0 0;padding:10px 0 0 11px;border-left:3px solid #33a7a6;color:#52686b;font-size:11px;line-height:1.55}
.dataset-link{display:flex;align-items:center;justify-content:space-between;color:#0b777a;font-size:13px;font-weight:760;margin-top:19px}
.dataset-link:hover{text-decoration:underline}
.support-banner{margin-top:22px;background:#dce9e5;display:flex;align-items:center;justify-content:space-between;gap:30px;padding:25px 29px}
.support-banner h3{font:400 27px/1.2 var(--serif);margin:12px 0 5px}
.support-banner p{font-size:12px;line-height:1.6;color:#53686a;margin:0;max-width:660px}
.support-banner>a{white-space:nowrap;color:#0a777a;font-size:12px;font-weight:750}
.support-gallery{margin:24px 0 0;background:#fff;padding:17px 17px 14px;box-shadow:0 18px 40px rgba(7,39,43,.07)}
.support-gallery img{width:100%;height:auto}
.support-gallery figcaption{margin-top:11px;border-top:1px solid #dde6e5;padding-top:9px;color:#53696b;font-size:12px;line-height:1.55}
.support-gallery figcaption a{color:#0a777a;font-weight:750;white-space:nowrap}
.support-gallery figcaption a:hover{text-decoration:underline}
.method-section{background:#071a23}
.method-figure{background:#f8faf9;margin:0;padding:24px 27px 16px;border:1px solid #e0e9e8}
.method-figure img{width:100%;max-height:455px;object-fit:contain}
.method-figure figcaption{color:#53676b;font-size:12px;line-height:1.5;border-top:1px solid #e5eaea;padding-top:11px;margin-top:10px}
.method-details{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:27px}
.method-details div{border-top:1px solid rgba(144,225,225,.37);padding-top:18px}
.method-details span{font:400 22px var(--serif);color:var(--cyan)}
.method-details h3{font:400 25px var(--serif);margin:5px 0 9px}
.method-details p{font-size:13px;color:var(--muted);max-width:320px;margin:0}
.results-section{background:#0c222c}
.results-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.result-card{padding:27px 30px 25px;background:#102d37;border:1px solid var(--line)}
.result-protocol{font-size:10px;font-weight:770;text-transform:uppercase;letter-spacing:.14em;color:var(--cyan);margin-bottom:12px}
.result-card h3{font:400 29px var(--serif);margin-bottom:28px}
.result-track>div:not(.bar){display:flex;justify-content:space-between;gap:12px;align-items:baseline;font-size:12px;color:#c7d6d5;margin:16px 0 7px}
.result-track strong{color:#fff;font:400 26px var(--serif)}
.bar{height:6px;background:#23404a;border-radius:20px;overflow:hidden}
.bar i{height:100%;display:block;background:#7299a1;border-radius:20px}
.bar.highlighted i{background:linear-gradient(90deg,#39bac3,#b3f5e4)}
.result-card>p:last-child{font-size:11px;color:#90a9a9;margin:22px 0 0}
.scenes-section{background:#f3f5f2;color:#0c242c}
.scenes-section .kicker{color:#16878b}
.scenes-section .section-heading p:last-child{color:#53696b}
.scene-top{display:flex;justify-content:space-between;align-items:end;gap:30px}
.filters{display:flex;gap:4px;background:#e2e9e7;padding:4px;border-radius:4px;margin-bottom:47px}
.filters button{background:transparent;color:#4e696b;border:0;border-radius:3px;padding:8px 12px;cursor:pointer;font-size:12px;font-weight:760}
.filters button.active{background:#0b5c65;color:#fff}
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.scene-card{background:#fff;border:1px solid #dde6e5;min-width:0}
.scene-card[hidden]{display:none}
.scene-card video{width:100%;aspect-ratio:2/1;background:#0b2029;object-fit:contain}
.scene-card>div{padding:15px 18px 19px}
.scene-card span{color:#18828a;font-size:10px;letter-spacing:.12em;font-weight:780;text-transform:uppercase}
.scene-card h3{font:400 24px var(--serif);margin:5px 0 4px}
.scene-card p{font-size:12px;color:#607476;line-height:1.5;margin:0}
.scene-note{font-size:12px;color:#607476;margin:23px 0 0}
.site-footer{background:#041019;color:#d7e8e7;padding:55px 0 18px}
.footer-grid{display:grid;grid-template-columns:1fr 1.4fr .9fr;gap:35px}
.footer-grid p{font-size:12px;color:#89a3a3;margin:13px 0 0}
.footer-authors strong{font-size:13px;line-height:1.7;font-weight:640}
.footer-authors a{color:var(--cyan)}
.footer-links{display:flex;flex-direction:column;align-items:flex-start;gap:6px;font-size:12px}
.footer-links a:hover{color:var(--cyan)}
.footer-links span{color:#829e9e;font-size:11px;margin-top:5px}
.footer-bottom{border-top:1px solid var(--line);margin-top:50px;padding-top:16px;display:flex;justify-content:space-between;color:#728d8d;font-size:10px;letter-spacing:.08em;text-transform:uppercase}
@media(max-width:950px){.container{width:min(100% - 48px,1200px)}.site-header{padding:0 24px}.site-header nav{gap:15px}.header-status{display:none}.hero{min-height:690px}.hero-bottom{grid-template-columns:repeat(3,1fr)}.hero-bottom p{display:none}.intro-grid{grid-template-columns:1fr}.intro-note{min-height:200px}.dataset-body h3{font-size:32px}.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:670px){.container{width:calc(100% - 36px)}.site-header{height:65px;padding:0 18px}.site-header nav{gap:10px;overflow:auto}.site-header nav a{font-size:11px}.site-header nav a:nth-child(2){display:none}.brand{font-size:19px;gap:8px}.brand-mark{width:24px;height:24px}.hero{min-height:710px}.hero-content{padding-top:90px}.hero-image{background-position:57% center}.hero-shade{background:linear-gradient(90deg,rgba(2,14,22,.97),rgba(2,14,22,.52)),linear-gradient(0deg,#03131c 0%,transparent 35%)}h1{font-size:clamp(31px,8.1vw,53px)}.hero-description{font-size:14px}.hero-actions{gap:6px}.button{min-height:42px;font-size:11px;padding:9px 10px}.button-note{display:none}.hero-bottom{gap:6px;padding-top:17px}.hero-bottom strong{font-size:24px}.hero-bottom div span{font-size:8px;letter-spacing:.02em}.section{padding:69px 0}.section-heading-grid{grid-template-columns:1fr;gap:17px}.section-heading{margin-bottom:30px}.section-heading-grid>p{font-size:14px}.dataset-grid,.results-grid,.method-details,.scene-grid,.footer-grid{grid-template-columns:1fr}.dataset-photo{height:190px}.support-banner{display:block}.support-banner>a{display:inline-block;margin-top:15px}.method-figure{padding:12px}.method-details{gap:7px}.scene-top{display:block}.filters{width:max-content;margin-bottom:25px}.footer-grid{gap:24px}.footer-bottom{margin-top:32px}.video-caption>span:last-child{margin-left:0}.intro-note h3{font-size:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}