*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
/* Grid/flex children default to min-width:auto and refuse to shrink below their
content, which is the usual cause of mobile horizontal overflow. */
main *,footer *,header *{min-width:0}
h1,h2,h3,h4,p,li,blockquote,figcaption,dd,dt,summary{overflow-wrap:break-word}
.skip{position:absolute;left:-9999px;top:0;z-index:100;padding:.75rem 1.25rem;background:#000;color:#fff;text-decoration:none}
.skip:focus{left:0}
:focus-visible{outline:3px solid currentColor;outline-offset:2px}
.vh{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
details>summary{cursor:pointer;min-height:44px;display:flex;align-items:center}
details>summary::-webkit-details-marker{display:none}
@media (prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}
:root{
--warm:#FAF7F1;--navy:#183052;--coral:#C85A59;
--powder:#DDE9F4;--char:#29303A;
--coraltext:#B53D3C;--oncoral:#0D0D0D;
--thresh:58%;
}
body{background:var(--warm);color:var(--char);
font-family:"Inria Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
font-size:17px;line-height:1.62}
h1,h2,h3,h4{font-weight:700;line-height:1.12;margin:0 0 .5em;letter-spacing:-.012em}
p{margin:0 0 1em}
.du-in{max-width:1220px;margin:0 auto;padding:0 30px}
/* ---------- quiet header ---------- */
.du-head{background:var(--warm);border-bottom:1px solid rgba(24,48,82,.16)}
.du-head-in{max-width:1220px;margin:0 auto;padding:14px 30px;display:flex;
align-items:center;gap:24px;flex-wrap:wrap}
.du-id{margin:0;font-weight:700;color:var(--navy);font-size:15.5px}
.du-nav{margin-left:auto}
.du-nav ul{list-style:none;display:flex;gap:24px;margin:0;padding:0;flex-wrap:wrap}
.du-nav a{color:var(--char);text-decoration:none;font-size:15px;
display:inline-flex;align-items:center;min-height:44px}
.du-nav a:hover{color:var(--coraltext)}
.du-nav-em{background:var(--navy);color:var(--warm)!important;padding:0 18px;
border-radius:2px;font-weight:700}
.du-nav-em:hover{background:var(--coral);color:var(--oncoral)!important}
/* ---------- opening: warm-white region aligned to the 58% threshold -------- */
.du-open{background:var(--warm)}
.du-region{max-width:1220px;margin:0 auto;padding:58px 30px 46px;display:grid;
grid-template-columns:var(--thresh) 1fr;gap:40px;align-items:end}
.du-kick{margin:0 0 16px;color:var(--coraltext);font-size:15px;font-weight:700}
.du-title h1{font-size:clamp(38px,5.2vw,76px);margin:0;max-width:15ch;color:var(--navy)}
.du-facts{border-left:2px solid var(--navy);padding-left:26px}
.du-dates{margin:0 0 4px;font-size:clamp(22px,2.3vw,30px);font-weight:700;color:var(--navy)}
.du-loc{margin:0 0 4px;font-size:18px}
.du-part{margin:0 0 20px;font-size:15px;color:#5a626d}
.du-acts{display:flex;gap:10px;flex-wrap:wrap}
.du-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;
padding:0 22px;border:2px solid var(--navy);color:var(--navy);text-decoration:none;
font-weight:700;font-size:15px;background:transparent;border-radius:2px}
.du-btn--f{background:var(--navy);color:var(--warm)}
.du-btn:hover{background:var(--coral);border-color:var(--coral);color:var(--oncoral)}
.du-shot{margin:0}
.du-frame{position:relative;isolation:isolate;line-height:0}
.du-nat{width:100%;height:clamp(260px,34vw,460px);object-fit:cover}
.du-duo{position:absolute;inset:0;clip-path:inset(0 0 0 var(--thresh));isolation:isolate}
.du-duo img{width:100%;height:100%;object-fit:cover;
filter:grayscale(1) contrast(1.06) brightness(1.02)}
.du-duo::before{content:"";position:absolute;inset:0;background:var(--navy);
mix-blend-mode:lighten}
.du-duo::after{content:"";position:absolute;inset:0;background:var(--coral);
mix-blend-mode:darken}
.du-thresh{position:absolute;top:0;bottom:0;left:var(--thresh);width:2px;
background:var(--warm)}
.du-shot figcaption{max-width:1220px;margin:0 auto;padding:12px 30px 0;
font-size:13px;color:#5a626d;line-height:1.5}
/* ---------- sections ---------- */
.du-sec{padding:68px 0}
.du-sec h2{font-size:clamp(27px,3.1vw,44px);color:var(--navy)}
.du-sub{color:#5a626d;max-width:76ch}
.du-big{font-size:19px;max-width:62ch}
.du-lnk{color:var(--coraltext);font-weight:700}
/* currents */
.du-sec--cur{background:var(--powder)}
.du-currents{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin-top:28px}
.du-cur{border-top:3px solid var(--navy);padding-top:16px}
.du-cur:nth-child(2){border-top-color:var(--coral)}
.du-cur:nth-child(3){border-top-color:var(--char)}
.du-cur-n{margin:0 0 10px;font-weight:700;font-size:14px;color:var(--navy);
letter-spacing:.08em}
.du-cur ul{list-style:none;margin:0;padding:0}
.du-cur li{padding:11px 0;border-bottom:1px solid rgba(24,48,82,.2);font-size:16px}
/* agenda: one continuous current */
.du-flow{margin-top:30px;border-left:3px solid var(--powder);padding-left:30px}
.du-day h3{font-size:clamp(21px,2.3vw,30px);margin:0 0 4px;color:var(--char)}
.du-day h3 span{color:var(--navy)}
.du-day-n{margin:0 0 14px;font-size:14px;color:#6b727c}
.du-list{margin:0}
.du-item{display:grid;grid-template-columns:96px 1fr;gap:20px;padding:15px 0;
border-top:1px solid rgba(24,48,82,.16)}
.du-item dt{font-weight:700;color:var(--coraltext);font-size:15.5px}
.du-item dd{margin:0}
.du-item h4{margin:0 0 3px;font-size:18px;font-weight:700;color:var(--navy)}
.du-sp{margin:0;font-size:14.5px}
.du-pt{margin:5px 0 0;font-size:14px;color:#6b727c;max-width:76ch}
.du-div{height:10px;margin:36px 0 34px;
background:linear-gradient(90deg,var(--navy) 0 58%,var(--coral) 58% 100%)}
/* speakers: staggered stream */
.du-stream{display:grid;grid-template-columns:repeat(4,1fr);gap:34px 28px;margin:28px 0 26px}
.du-str:nth-child(even){margin-top:64px}
.du-str img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;margin-bottom:14px}
.du-str h3{font-size:18px;margin:0 0 4px;color:var(--navy)}
.du-str-r{margin:0 0 10px;font-size:13.5px;color:#5a626d}
.du-str-s{margin:0;font-size:14px;border-top:2px solid var(--powder);padding-top:9px}
/* participation */
.du-sec--part{background:var(--navy);color:var(--powder)}
/* `du-part` is also the hero's participation-modes paragraph class, and that
rule's color:#5a626d wins over inheritance on this grid container -- which
rendered the whole navy block's copy at 2.15:1. Restate the section colour on
the container. (The same collision leaks font-size:15px in here too; that is a
type size, so it is reported rather than changed in a contrast pass.) */
.du-sec--part .du-part{color:var(--powder)}
.du-sec--part h2{color:#fff}
.du-part{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:46px;
align-items:start}
.du-part-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.du-sec--part .du-btn{border-color:var(--powder);color:var(--powder);width:100%}
.du-sec--part .du-btn--f{background:var(--coral);border-color:var(--coral);
color:var(--oncoral)}
.du-sec--part .du-btn:hover{background:var(--powder);color:var(--navy);border-color:var(--powder)}
/* proof */
.du-proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px}
.du-pf{margin:0}
.du-pf img{width:100%;aspect-ratio:3/2;object-fit:cover}
.du-pf figcaption{font-size:12.5px;color:#6b727c;margin-top:8px}
.du-quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px}
.du-q{margin:0;background:var(--powder);padding:24px;border-top:4px solid var(--coral)}
.du-q blockquote{margin:0}
.du-q p{margin:0 0 12px;font-size:16px}
.du-q figcaption{font-size:13.5px;font-weight:700;color:var(--navy)}
/* venue / partners / faq */
.du-sec--venue{background:var(--powder)}
.du-venue{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:46px}
.du-venue-dl{margin:0;background:var(--warm);padding:8px 24px}
.du-venue-dl>div{padding:12px 0;border-bottom:1px solid rgba(24,48,82,.18)}
.du-venue-dl>div:last-child{border-bottom:0}
.du-venue-dl dt{font-size:13px;color:var(--coraltext);font-weight:700}
.du-venue-dl dd{margin:2px 0 0;font-weight:700;color:var(--navy)}
.du-pt{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:44px;
align-items:center}
.du-pt-acts{display:grid;gap:12px;margin:0}
.du-sec--faq{background:var(--warm)}
.du-faq details{border-top:1px solid rgba(24,48,82,.2)}
.du-faq summary{font-weight:700;font-size:17.5px;padding:16px 0;color:var(--navy)}
.du-faq summary:hover{color:var(--coraltext)}
.du-faq details p{margin:0 0 18px;color:#5a626d;max-width:76ch}
/* footer */
.ft{background:var(--char);color:#d5dae1;padding:52px 0 32px}
.ft-in{max-width:1220px;margin:0 auto;padding:0 30px}
.ft-org strong{color:#fff}
.ft-links{list-style:none;display:flex;flex-wrap:wrap;gap:2px 26px;padding:0;margin:0 0 18px}
.ft-links a{color:var(--powder);font-size:14.5px;min-height:44px;display:inline-flex;
align-items:center}
.ft-links a:hover{color:var(--coral)}
.ft-note{font-size:13px;color:#9aa2ad;max-width:78ch;margin:0 0 10px}
.ft-c{font-size:12.5px;color:#9199a2;margin:22px 0 0;
border-top:1px solid rgba(221,233,244,.18);padding-top:18px}
/* ---------- tablet ---------- */
@media (max-width:1040px){
.du-region{grid-template-columns:1fr;gap:28px;align-items:start}
.du-facts{border-left:0;border-top:2px solid var(--navy);padding:20px 0 0}
.du-currents{grid-template-columns:1fr}
.du-stream{grid-template-columns:repeat(2,1fr)}
.du-str:nth-child(even){margin-top:0}
.du-str:nth-child(4n+2),.du-str:nth-child(4n+4){margin-top:48px}
.du-part,.du-venue,.du-pt{grid-template-columns:1fr;gap:28px}
.du-proof-grid{grid-template-columns:1fr}
.du-quotes{grid-template-columns:1fr}
}
/* ---------- mobile: threshold turns horizontal ---------- */
@media (max-width:640px){
body{font-size:16px}
.du-in,.du-head-in,.du-region{padding-left:20px;padding-right:20px}
.du-nav ul{gap:16px}
.du-nav a{font-size:14px}
.du-region{padding-top:36px;padding-bottom:30px}
.du-title h1{font-size:clamp(38px,10.6vw,46px)}
.du-nat{height:300px}
.du-duo{clip-path:inset(56% 0 0 0)}
.du-thresh{top:56%;bottom:auto;left:0;right:0;width:auto;height:2px}
.du-shot figcaption{padding-left:20px;padding-right:20px}
.du-sec{padding:46px 0}
.du-flow{padding-left:18px}
.du-item{grid-template-columns:72px 1fr;gap:12px}
.du-stream{grid-template-columns:1fr;gap:30px}
.du-str:nth-child(n){margin-top:0}
.du-str img{aspect-ratio:1/1}
.du-div{margin:28px 0}
.ft-links{flex-direction:column;gap:0}
}