*,*::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{--ice:#F3F8FB;--deep:#183A63;--cyan:#1B93B3;--mint:#6AC5A4;--white:#FFFFFF;
 --quiet:#5c6d7e;--rule:#cfdde7;--cyantext:#167892}
body{background:var(--ice);color:var(--deep);
 font:400 17px/1.7 "Atkinson Hyperlegible",system-ui,sans-serif}
h1,h2,h3,h4{font-family:Urbanist,system-ui,sans-serif;font-weight:800;margin:0;
 letter-spacing:-.015em}
.px-w{max-width:1260px;margin:0 auto;padding:0 28px}

/* ---- opening: photograph | dissolve band | information field ---- */
.px-op{display:grid;grid-template-columns:minmax(0,33%) auto minmax(0,1fr);
 grid-template-rows:auto 1fr;
 grid-template-areas:"photo band field" "photo band themes";
 align-items:stretch;min-height:640px}
.px-photo{grid-area:photo;margin:0;position:relative;overflow:hidden}
.px-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
 object-position:42% 40%}
.px-photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:12px 16px;
 background:rgba(24,58,99,.88);color:#e2eef6;font-size:12px;line-height:1.5}
.px-band{grid-area:band;display:grid;grid-auto-flow:column;align-content:start;
 background:var(--ice)}
.px-col{display:grid}
.px-sq{width:22px;height:22px}
.px-field{grid-area:field;padding:0}
/* the navigation lives entirely over the clean field, never over the photo */
.px-nav{position:relative;z-index:3;
 background:linear-gradient(to bottom,var(--ice) 72%,rgba(243,248,251,0));
 padding:16px 30px 26px;display:flex;gap:8px 26px;align-items:baseline;
 flex-wrap:wrap}
.px-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:0 24px;flex-wrap:wrap}
.px-nav a{display:inline-block;padding:8px 0;text-decoration:none;font-size:15px;
 font-weight:700;font-family:Urbanist,system-ui,sans-serif}
.px-nav a:hover{color:var(--cyantext)}
.px-nav-id{margin:0;font-size:14px;font-weight:700;color:var(--quiet);
 font-family:Urbanist,system-ui,sans-serif}
.px-body{padding:8px 30px 0}
.px-k{margin:0 0 14px;font-size:14.5px;font-weight:700;color:var(--cyantext);
 font-family:Urbanist,system-ui,sans-serif}
h1{font-size:clamp(36px,4.6vw,74px);line-height:1.0;max-width:14ch}
.px-facts{margin:22px 0 0;display:flex;flex-wrap:wrap;gap:14px 40px}
.px-facts div{min-width:0}
.px-facts dt{font-size:12.5px;color:var(--quiet)}
.px-facts dd{margin:2px 0 0;font-size:16px;font-weight:700}
.px-acts{margin:24px 0 0;display:flex;gap:11px;flex-wrap:wrap}
.px-a{display:inline-block;padding:13px 22px;font-weight:700;font-size:15px;
 text-decoration:none;background:var(--deep);color:var(--white);
 font-family:Urbanist,system-ui,sans-serif}
.px-a--o{background:transparent;color:var(--deep);box-shadow:inset 0 0 0 2px var(--deep)}
.px-a:hover{background:var(--cyan);color:var(--white);box-shadow:none}
/* five theme lines, staggered on the pixel module */
.px-themes{grid-area:themes;list-style:none;margin:34px 30px 54px;padding:0;
 border-top:2px solid var(--deep);align-self:start}
.px-themes li{display:flex;gap:12px;align-items:baseline;padding:11px 0;
 border-bottom:1px solid var(--rule)}
.px-themes li:nth-child(1){margin-left:0}
.px-themes li:nth-child(2){margin-left:22px}
.px-themes li:nth-child(3){margin-left:calc(22px * 2)}
.px-themes li:nth-child(4){margin-left:22px}
.px-themes li:nth-child(5){margin-left:0}
.px-dot{width:11px;height:11px;flex:none;background:var(--cyan)}
.px-themes li:nth-child(even) .px-dot{background:var(--mint)}
.px-tn{font-family:Urbanist,system-ui,sans-serif;font-weight:700;font-size:17px}
.px-td{font-size:14px;color:var(--quiet)}

/* ---- sections ---- */
.px-s{padding:70px 0}
.px-s--white{background:var(--white)}
.px-s--deep{background:var(--deep);color:#cfe0ee}
.px-s--deep h2,.px-s--deep h3,.px-s--deep h4{color:var(--white)}
h2{font-size:clamp(27px,3.1vw,44px);line-height:1.08;margin:0 0 16px}
.px-lead{font-size:18.5px;max-width:68ch;margin:0 0 30px;color:#3a4d5f}
.px-s--deep .px-lead{color:#adc5da}
.px-more{margin:32px 0 0;font-weight:700}
.px-more a{color:var(--cyantext)}
.px-s--deep .px-more a{color:var(--mint)}

/* ---- theme chapters ---- */
.px-ch{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:34px;
 padding:30px 0;border-top:1px solid var(--rule)}
.px-ch h3{font-size:clamp(22px,2.3vw,30px);line-height:1.14}
.px-ch-d{margin:8px 0 0;font-size:14.5px;font-weight:700;color:var(--cyantext)}
.px-ch-b{margin:0;color:#3a4d5f}

/* ---- sessions: text bands with small square date markers ---- */
.px-band-day{padding:26px 0;border-top:1px solid var(--rule)}
.px-marker{display:flex;gap:5px;margin:0 0 12px}
.px-marker span{width:13px;height:13px;background:var(--mint)}
.px-marker span:nth-child(n+3){background:var(--cyan)}
.px-band-h{display:flex;flex-wrap:wrap;gap:4px 20px;align-items:baseline}
.px-band-h h3{font-size:22px}
.px-band-dt{margin:0;font-size:14.5px;color:var(--quiet)}
.px-rows{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:0}
.px-rows li{display:grid;grid-template-columns:minmax(0,8rem) minmax(0,1fr);
 gap:4px 26px;padding:12px 0;border-top:1px dotted var(--rule)}
.px-rows li:first-child{border-top:0}
.px-time{margin:0;font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.px-rows h4{font-size:17px;font-weight:700;line-height:1.32}
.px-room{margin:2px 0 0;font-size:13px;color:var(--quiet)}
.attr{margin:4px 0 0;font-size:14px;color:#3a4d5f}

/* ---- speakers: unmodified headshots in clean rectangles ---- */
.px-people{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px}
.px-p{background:var(--white);padding:18px}
.px-p-top{display:flex;gap:9px;margin:0 0 14px}
.px-p-top span{width:10px;height:10px;background:var(--cyan)}
.px-p-top span:nth-child(2){background:var(--mint)}
.px-p-top span:nth-child(3){background:var(--deep)}
.px-p img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover}
.px-p h3{margin:14px 0 0;font-size:20px;line-height:1.2}
.px-p-r{margin:6px 0 0;font-size:14.5px;color:#3a4d5f}
.px-p-o{margin:3px 0 0;font-size:14.5px;font-weight:700;color:var(--cyantext)}
.px-p-s{margin:12px 0 0;font-size:14.5px;font-weight:700}
.px-p-w{margin:3px 0 0;font-size:13px;color:var(--quiet)}

/* ---- attendance / tracks / venue ---- */
.px-modes{list-style:none;margin:0;padding:0;display:grid;
 grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
.px-modes li{border-top:4px solid var(--cyan);padding:16px 0 0}
.px-modes h3{font-size:21px;margin:0 0 8px}
.px-modes p{margin:0;color:#3a4d5f}
.px-tracks{list-style:none;margin:0;padding:0;display:grid;
 grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.px-tracks li{display:flex;gap:16px;align-items:baseline;padding:13px 0;
 border-top:1px solid #2e5382}
.px-tracks b{font-family:Urbanist,system-ui,sans-serif;font-weight:700;
 font-size:17px;color:var(--white)}
.px-tracks span{margin-left:auto;font-size:14px;color:var(--mint);
 font-variant-numeric:tabular-nums}
.px-venue{margin:0 0 38px;display:grid;
 grid-template-columns:minmax(0,13rem) minmax(0,1fr);gap:0 30px;max-width:880px}
.px-venue dt{font-size:13.5px;color:var(--quiet);padding:11px 0;
 border-top:1px solid var(--rule)}
.px-venue dd{margin:0;padding:11px 0;border-top:1px solid var(--rule);font-weight:700}
.px-gal{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.px-gal figure{margin:0}
.px-gal img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.px-gal figcaption{margin-top:9px;font-size:12.5px;color:var(--quiet)}

/* ---- faq ---- */
.px-q{border-top:1px solid var(--rule);padding:4px 0}
.px-q summary{font-family:Urbanist,system-ui,sans-serif;font-weight:800;
 font-size:18.5px;padding:13px 0}
.px-q p{margin:0 0 16px;max-width:70ch;color:#3a4d5f}

/* ---- footer ---- */
.ft{background:var(--deep);color:#c6d9e8}
.ft-in{max-width:1260px;margin:0 auto;padding:52px 28px;display:grid;gap:12px}
.ft-org strong{color:var(--white)}
.ft-links{list-style:none;display:flex;flex-wrap:wrap;gap:18px;padding:0;margin:8px 0}
.ft-links a{color:var(--mint);font-weight:700;font-size:14.5px}
.ft-note,.ft-id,.ft-contact{font-size:13.5px;color:#a9c1d4;margin:0;max-width:78ch}
.ft-contact a{color:var(--white)}
.ft-c{font-size:13px;color:#96b0c5;margin:10px 0 0}

@media (max-width:1040px){
  .px-people{grid-template-columns:repeat(2,minmax(0,1fr))}
  .px-ch{grid-template-columns:minmax(0,1fr);gap:12px}
  .px-tracks{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:820px){
  /* no narrow side-by-side split on phones: facts first, then the full-width
     photograph, then a short horizontal pixel transition, then the themes. */
  .px-op{display:flex;flex-direction:column;min-height:0}
  .px-field{order:1}
  .px-photo{order:2}
  .px-band{order:3}
  .px-themes{order:4}
  .px-nav{background:var(--deep);padding:12px 22px;margin:0}
  .px-nav a,.px-nav-id{color:var(--white)}
  .px-nav a:hover{color:var(--mint)}
  .px-body{padding:30px 22px 0;order:1}
  .px-photo{position:relative;height:auto;margin:26px 0 0}
  .px-photo img{position:static;width:100%;height:auto;aspect-ratio:3/2}
  /* the dissolve becomes a short horizontal transition between the image and
     the theme list: display:contents lets every square wrap in one flex run. */
  .px-band{display:flex;flex-wrap:wrap;padding:0 22px;margin:20px 0 0}
  .px-col{display:contents}
  .px-col:nth-child(n+3){display:none}
  .px-sq{width:14px;height:14px}
  .px-themes{margin:22px 22px 40px}
  .px-themes li:nth-child(n){margin-left:0}
  .px-people{grid-template-columns:minmax(0,1fr)}
  .px-modes{grid-template-columns:minmax(0,1fr)}
  .px-gal{grid-template-columns:minmax(0,1fr)}
  .px-rows li{grid-template-columns:minmax(0,1fr);gap:2px}
  .px-venue{grid-template-columns:minmax(0,1fr);gap:0}
  .px-venue dt{padding-bottom:0}
  .px-venue dd{padding-top:2px;border-top:0}
  .px-acts{width:100%}
  .px-a{flex:1;text-align:center}
  .px-s{padding:52px 0}
}
@media (prefers-reduced-motion:no-preference){
  /* the pixels resolve once, coarse to sharp, and then stay put */
  .px-sq{animation:px-resolve .9s steps(4,end) backwards}
  @keyframes px-resolve{from{opacity:0;transform:scale(.4)}}
}