@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');
:root{--navy:#101b31;--navy2:#15233d;--ink:#18243b;--muted:#667187;--teal:#4bd4c1;--line:#dde4ec;--paper:#f8fafb;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font:16px/1.65 'DM Sans',Arial,sans-serif;background:var(--white)}a{color:inherit}button{font:inherit}.wrap{width:min(1160px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:-999px;top:10px;background:#fff;padding:10px;z-index:20}.skip:focus{left:10px}.site-header{position:sticky;top:0;z-index:10;background:rgba(16,27,49,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}.nav-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:13px;text-decoration:none;color:#fff}.brand-mark{width:38px;height:38px;border:1px solid var(--teal);display:grid;place-items:center;color:var(--teal);font:700 14px Outfit,sans-serif;letter-spacing:-2px;border-radius:9px}.brand-mark span{font-size:11px;letter-spacing:0}.brand-name{font:700 19px Outfit,sans-serif;letter-spacing:-.5px}.brand-name>span{color:var(--teal)}.brand-name small{display:block;color:#aebbd0;font:600 9px 'DM Sans',sans-serif;letter-spacing:2px;margin-top:-4px}.site-header nav{display:flex;gap:28px}.site-header nav a{font-size:13px;text-decoration:none;color:#c5d0dd;font-weight:600;transition:color .2s}.site-header nav a:hover,.site-header nav a:focus{color:var(--teal)}.menu-toggle{display:none;background:none;color:#fff;border:0;font-size:24px;cursor:pointer}.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 83% 30%,#203d5d 0,#14263e 27%,var(--navy) 62%);color:#fff;min-height:660px}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(90deg,transparent 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rgba(75,212,193,.3);border-radius:50%;transform:rotate(-30deg)}.orbit-one{width:410px;height:410px;top:50px;left:100px}.orbit-two{width:570px;height:280px;top:110px;left:20px}.core{position:absolute;top:185px;left:263px;width:125px;height:125px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle,#70e8d6,#2c9eab 58%,#205074);box-shadow:0 0 90px #45d7d788;color:#e8fffb;font-size:78px;font-family:serif}.node{position:absolute;width:12px;height:12px;border-radius:50%;background:var(--teal);box-shadow:0 0 23px var(--teal)}.n1{top:77px;left:250px}.n2{top:246px;left:76px}.n3{top:447px;left:321px}.n4{top:226px;left:542px}.section{padding:100px 0;scroll-margin-top:75px}.kicker{color:#168f8b;margin-bottom:18px}.section h2,.contact-section h2{font-size:clamp(34px,4vw,52px);line-height:1.14;letter-spacing:-2px;margin-bottom:25px}.two-col{display:grid;grid-template-columns:.88fr 1.12fr;gap:110px}.prose{color:#4e5a6e;font-size:17px}.prose p{margin-bottom:20px}.topics-section,.dates-section,.speakers-section{background:var(--paper)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:36px}.section-head h2{margin-bottom:0}.section-head>p{max-width:365px;color:var(--muted);margin:0}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.topic-card{position:relative;min-height:255px;padding:27px;background:#fff;border:1px solid var(--line);border-radius:9px;transition:transform .2s,box-shadow .2s}.topic-card:hover{transform:translateY(-4px);box-shadow:0 16px 30px #17284211}.topic-num{position:absolute;right:25px;top:21px;color:#a7b3bf;font:600 11px Outfit;letter-spacing:2px}.topic-icon{width:42px;height:42px;border-radius:9px;background:#e4f8f4;color:#148c86;display:grid;place-items:center;font-size:25px;margin-bottom:24px}.topic-card h3{font-size:19px;margin-bottom:7px}.topic-card p{color:var(--muted);font-size:14px;margin:0}.cfp-layout{display:grid;grid-template-columns:1fr 410px;gap:110px;align-items:center}.cfp-layout p{color:#58657a}.cfp-layout .lead{font:500 22px/1.45 Outfit;color:var(--ink)}.text-link{display:inline-block;color:#147f7d;text-decoration:none;border-bottom:1px solid #78c8bd;font-weight:700;margin-top:8px}.submission-box{background:var(--navy);color:#fff;border-radius:12px;padding:38px;box-shadow:16px 16px 0 #dff2f0}.box-label{color:var(--teal)}.submission-box h3{font-size:29px;line-height:1.2;margin:20px 0}.submission-box h3 em{color:var(--teal);font-style:normal}.submission-box p{color:#afbdcd;font-size:14px}.box-rule{height:1px;background:#ffffff24;margin:26px 0 15px}.mini-row{display:flex;justify-content:space-between;gap:15px;padding:10px 0;font-size:13px}.mini-row span{color:#afbdcd}.mini-row strong{white-space:nowrap}.submission-box small{display:block;color:#93a4ba;line-height:1.5;margin-top:20px}.timeline{border-top:1px solid var(--line)}.date-item{display:grid;grid-template-columns:180px 1fr;gap:35px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line)}.date-day{font:700 43px/1 Outfit;color:#159a91;display:flex;align-items:center;gap:12px}.date-day span{color:var(--muted);font:700 11px/1.35 'DM Sans';letter-spacing:1.3px;max-width:80px}.date-item h3{font-size:19px;margin:0 0 3px}.date-item p{color:var(--muted);font-size:14px;margin:0}.program-tabs{display:flex;gap:8px;margin-bottom:18px}.tab{padding:11px 22px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--muted);font-size:13px;font-weight:700;cursor:pointer}.tab.active{background:var(--navy);color:#fff;border-color:var(--navy)}.program-panel{border:1px solid var(--line);border-radius:10px;overflow:hidden}.program-panel[hidden]{display:none}.session{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:15px 24px;border-bottom:1px solid var(--line);font-size:15px;font-weight:600}.session:last-child{border:0}.session time{color:#148d87;font:700 13px 'DM Sans'}.session.break{background:#f4f8f8;color:#788598;font-weight:400}.session.break time{color:#788598}.people-grid{display:grid;gap:14px}.speakers-grid{grid-template-columns:repeat(4,1fr)}.organizers-grid{grid-template-columns:repeat(5,1fr)}.person{background:#fff;border:1px solid var(--line);border-radius:9px;padding:25px;min-height:215px}.avatar{display:grid;place-items:center;width:54px;height:54px;border-radius:12px;background:#e3f6f2;color:#168c86;font:700 18px Outfit;margin-bottom:22px}.person h3{font-size:18px;line-height:1.25;margin:0 0 5px}.person h3 a{text-decoration:none}.person h3 a:hover{color:#118d88}.person p{font-size:13px;color:var(--muted);margin:0}.person small{display:block;margin-top:12px;color:#7a879a;font-size:12px;line-height:1.45}.role{display:block;color:#168f8b;font-size:9px;letter-spacing:1.3px;margin-bottom:8px}.speaker-note{font-size:13px;color:var(--muted);margin:18px 0 0}.organizers-section .person{min-height:205px}.contact-section{background:var(--navy);color:#fff;padding:67px 0}.contact-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}.contact-section .kicker{color:var(--teal)}.contact-section h2{margin:0 0 8px}.contact-section p:last-child{color:#b4c1d2;margin:0}.button.light{background:var(--teal);color:var(--navy);white-space:nowrap}footer{background:#0b1425;color:#91a0b3;padding:26px 0;font-size:12px}.footer-inner{display:flex;justify-content:space-between;gap:20px}footer a{text-decoration:none;color:#d4e1ea}footer a:hover{color:var(--teal)}
@media(max-width:1000px){.site-header nav{gap:14px}.site-header nav a{font-size:12px}.hero-art{right:-260px}.cfp-layout{gap:55px}.organizers-grid{grid-template-columns:repeat(3,1fr)}.speakers-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.wrap{width:min(100% - 34px,1160px)}.nav-inner{height:66px}.menu-toggle{display:block}.site-header nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy);padding:18px 22px 26px;flex-direction:column;gap:12px;border-top:1px solid #ffffff24}.site-header nav.open{display:flex}.site-header nav a{font-size:15px;padding:5px}.hero{min-height:0}.hero-content{padding:74px 0 35px}.hero-art{opacity:.2;right:-380px}h1{letter-spacing:-2px}.hero-sub{font-size:16px}.hero-meta{margin-top:70px;flex-wrap:wrap;gap:18px}.hero-meta>div{min-width:180px;border:0;padding:0;margin:0}.section{padding:68px 0}.two-col,.cfp-layout{grid-template-columns:1fr;gap:20px}.section-head{display:block}.section-head>p{margin-top:16px}.topic-grid{grid-template-columns:repeat(2,1fr)}.contact-inner{display:block}.contact-inner .button{margin-top:25px}.footer-inner{flex-wrap:wrap}}
@media(max-width:520px){h1{font-size:42px}.hero-meta{display:grid;grid-template-columns:1fr 1fr}.hero-meta>div{min-width:0}.topic-grid,.speakers-grid,.organizers-grid{grid-template-columns:1fr}.topic-card{min-height:0}.date-item{grid-template-columns:95px 1fr;gap:10px}.date-day{font-size:31px;display:block}.date-day span{display:block;font-size:9px;margin-top:4px}.session{grid-template-columns:105px 1fr;gap:10px;padding:14px;font-size:13px}.session time{font-size:11px}.submission-box{padding:27px;box-shadow:8px 8px 0 #dff2f0}.hero-actions{display:grid}.footer-inner{display:grid}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
/* Light editorial theme */
:root{--navy:#173c40;--ink:#173236;--muted:#647b7d;--teal:#157d76;--line:#dce9e6;--paper:#f5faf8}
body{background:#fff;color:var(--ink)}.site-header{background:rgba(255,255,255,.95);border-bottom:1px solid var(--line)}.brand,.site-header nav a,.menu-toggle{color:var(--ink)}.brand-mark{color:var(--teal);background:#e9f7f2;border:0}.brand-name>span{color:var(--teal)}.brand-name small{color:#748a88}.site-header nav a:hover,.site-header nav a:focus{color:var(--teal)}
.hero{background:linear-gradient(135deg,#f4fbf8 0%,#edf8f6 60%,#e5f2f0 100%);color:var(--ink);min-height:600px}.hero:before{background-image:linear-gradient(#157d7610 1px,transparent 1px),linear-gradient(90deg,#157d7610 1px,transparent 1px);mask-image:none}.hero-content{padding:100px 0 45px}.eyebrow{color:var(--teal)}.dot{background:var(--teal);box-shadow:none}h1 em{color:#168b80}.hero-sub{color:#586f71}.button.primary,.button.light{background:var(--teal);color:#fff}.button.ghost{color:var(--ink);border:1px solid #b5ceca}.button.ghost:hover{background:#ffffff99}.hero-meta{border-top:1px solid #cddfda}.hero-meta>div{border-right:1px solid #cddfda}.meta-label{color:var(--teal)}.hero-meta small{color:#748b8c}
.hero-art{right:5%;top:40px;width:450px;height:460px;opacity:.8}.diagram-node{position:absolute;border:1.5px solid #93cfc5;background:#ffffffba;box-shadow:0 18px 55px #2e8b7a15;color:#247f79;display:grid;place-items:center;font:700 34px Outfit;border-radius:22px;z-index:2}.d1{width:135px;height:135px;top:35px;left:160px}.d2{width:110px;height:110px;top:250px;left:45px;font-family:serif}.d3{width:125px;height:125px;top:250px;left:288px}.diagram-line{position:absolute;height:2px;background:#9bcdc4;transform-origin:left}.l1{width:190px;left:130px;top:272px;transform:rotate(-54deg)}.l2{width:184px;left:248px;top:143px;transform:rotate(55deg)}
.kicker{color:var(--teal)}.prose strong{color:var(--ink)}.topic-card{box-shadow:0 3px 15px #20494008}.topic-icon,.avatar{background:#e9f7f2;color:var(--teal)}.submission-box{background:#e9f7f2;color:var(--ink);box-shadow:12px 12px 0 #d9ede8}.box-label,.submission-box h3 em{color:var(--teal)}.submission-box p,.mini-row span,.submission-box small{color:#607d7b}.box-rule{background:#cddfda}.date-day,.session time,.text-link{color:var(--teal)}
.speakers-section{background:#f4faf8}.speakers-placeholder{position:relative;min-height:220px}.speakers-placeholder h2 span{color:var(--teal)}.speakers-placeholder>p:last-of-type{color:var(--muted)}.tba-mark{position:absolute;right:30px;top:22px;width:220px;height:170px;border:1px dashed #9bcac1;border-radius:50%;display:flex;align-items:center;justify-content:center;gap:12px;transform:rotate(-12deg);color:#7bb5aa;font:700 43px Outfit}.tba-mark span{font-size:25px}.organizers-grid{grid-template-columns:repeat(3,1fr)}.organizers-section .person{min-height:190px}.contact-section{background:#e7f5f0;color:var(--ink)}.contact-section .kicker{color:var(--teal)}.contact-section p:last-child{color:var(--muted)}footer{background:#f8fbfa;color:var(--muted);border-top:1px solid var(--line)}footer a{color:var(--ink)}
@media(max-width:760px){.site-header nav{background:#fff;border-top:1px solid var(--line)}.hero-art{right:-210px;opacity:.22}.hero-meta>div{border:0}.tba-mark{display:none}.speakers-placeholder{min-height:0}}
@media(max-width:520px){.organizers-grid{grid-template-columns:1fr}.hero-content{padding-top:70px}.hero-meta{margin-top:55px}}
/* Header and topical illustration */
.brand{gap:24px;flex:none}.aaai-logo{display:block;width:112px;height:auto;max-height:45px;object-fit:contain}.brand-name{display:flex;flex-direction:column;justify-content:center;min-width:105px;line-height:1.15;white-space:nowrap}.brand-name small{margin-top:5px;line-height:1.2}.nav-inner{gap:36px}.site-header nav{gap:22px}.hero-art{width:min(46vw,580px);height:auto;right:1%;top:58px;opacity:.92;object-fit:contain}.hero-content h1{max-width:850px}.hero-sub{max-width:570px}.hero:before{opacity:.45}
.schedule-section{background:#fff}.schedule-placeholder{display:flex;justify-content:space-between;align-items:center;gap:40px;padding-top:20px;padding-bottom:20px}.schedule-placeholder h2{margin-bottom:12px}.schedule-placeholder p:last-child{color:var(--muted);margin:0}.schedule-tba{display:grid;place-items:center;width:180px;height:130px;flex:none;border:1px solid #c8e2da;border-radius:16px;background:#f3faf7;color:var(--teal);font:700 35px Outfit;letter-spacing:3px}
@media(max-width:1100px){.nav-inner{gap:15px}.site-header nav{gap:12px}.aaai-logo{width:95px}.brand{gap:14px}.hero-art{right:-70px;opacity:.45}}
@media(max-width:760px){.aaai-logo{width:92px}.brand{gap:15px}.hero-art{width:440px;right:-190px;top:100px;opacity:.18}.schedule-placeholder{align-items:flex-start}.schedule-tba{width:110px;height:90px;font-size:24px}}
@media(max-width:520px){.brand-name{font-size:17px;min-width:95px}.schedule-placeholder{display:block}.schedule-tba{margin-top:25px}}
.brand-name{display:block;line-height:1.15;min-width:105px}.brand-name small{display:block;margin-top:6px;line-height:1.2}

/* Organizer portraits */
.organizers-section .avatar{display:block;width:96px;height:96px;object-fit:cover;object-position:center;border-radius:16px;margin-bottom:22px}