:root{
  --bg: #f7f7fb;
  --paper: #ffffff;
  --ink: #0b1220;
  --muted: #4b5563;
  --faint: #6b7280;
  --line: rgba(15,23,42,.10);
  --shadow: 0 18px 55px rgba(15,23,42,.10);

  --accent: #7c3aed; /* violet */
  --accent2:#2563eb; /* blue */
  --accent3:#f97316; /* orange */

  --radius: 16px;
  --radius2: 26px;
  --max: 1180px;

  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  --serif: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: var(--sans);
  color: var(--ink);
  line-height:1.55;
  background:
    radial-gradient(900px 320px at 15% 0%, rgba(124,58,237,.10), transparent 60%),
    radial-gradient(800px 300px at 85% 5%, rgba(37,99,235,.08), transparent 55%),
    radial-gradient(700px 320px at 55% 100%, rgba(249,115,22,.08), transparent 60%),
    var(--bg);
}

a{color:inherit}
a:hover{opacity:.92}
small{color:var(--faint)}
img{max-width:100%; display:block}

.container{max-width:var(--max); margin:0 auto; padding:0 20px; position:relative}


.topbar{
  position:sticky; top:0; z-index:60;
  background: rgba(255,255,255,.72);
  backdrop-filter: blur(16px);
  border-bottom:1px solid rgba(15,23,42,.08);
  box-shadow: 0 12px 28px rgba(2,6,23,.06);
}
.topbar:after{display:none}
.bar{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px;
  padding:12px 0;
}
.brand{
  display:flex; align-items:center; gap:14px;
  text-decoration:none;
}
.logoWrap{
  width:150px; height:101px;
  border-radius:0;
  padding:0;
  background: transparent;
  box-shadow: none;
  flex: 0 0 auto;
}
.logo{
  width:100%; height:100%;
  border-radius:0;
  display:block;
  object-fit: contain;
  border:0;
  background: transparent;
  filter: drop-shadow(0 12px 18px rgba(2,6,23,.16));
}
.brandText{display:flex; flex-direction:column; line-height:1.05}
.brandTitle{
  font-weight:800;
  font-size:18px;
  letter-spacing:-.3px;
  color: rgba(2,6,23,.92);
  white-space:nowrap;
}
.brandAcr{font-family: var(--serif)}
.brandEdition{
  font-family: var(--mono);
  font-weight:650;
  font-size:12px;
  color: rgba(2,6,23,.62);
}
.brandMeta{
  font-family: var(--mono);
  font-size:11px;
  color: var(--faint);
  margin-top:4px;
  white-space:nowrap;
}
@media (max-width: 520px){
  .logoWrap{width:96px; height:64px}
  .brandTitle{font-size:16px}
}

@media (max-width: 420px){
  .brandEdition{display:none}
  .brandMeta{display:none}
  .brandTitle{font-size:15px}
}

.nav{
  display:flex; align-items:center; gap:2px;
  padding:4px;
  border-radius:999px;
  border:1px solid rgba(15,23,42,.10);
  background: rgba(255,255,255,.58);
  box-shadow: 0 10px 22px rgba(2,6,23,.06);
}
.nav a{
  text-decoration:none;
  color: var(--muted);
  font-size:14px;
  padding:10px 14px;
  border-radius: 999px;
  border:1px solid transparent;
}
.nav a.active{
  color: var(--ink);
  background: linear-gradient(135deg, rgba(124,58,237,.16), rgba(37,99,235,.10));
  border-color: rgba(124,58,237,.22);
}
.nav a:hover{
  color: var(--ink);
  background: rgba(15,23,42,.03);
  border-color: rgba(15,23,42,.10);
}
.menuBtn{
  display:none;
  border:1px solid var(--line);
  background: rgba(15,23,42,.03);
  padding:10px 12px;
  border-radius: 999px;
  cursor:pointer;
}
@media (max-width: 920px){
  .nav{display:none}
  .menuBtn{display:inline-flex}
  .navwrap.open .nav{
    display:flex;
    position:absolute;
    top:100%;
    left:0; right:0;
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    padding:10px 20px 16px;
    background: rgba(247,247,251,.94);
    border-bottom:1px solid var(--line);
  }
  .navwrap.open .nav a{width:100%}
}

/* hero */
.hero{padding:44px 0 18px}
.heroCard{
  border-radius: var(--radius2);
  border:1px solid transparent;
  background:
    linear-gradient(rgba(255,255,255,.92), rgba(255,255,255,.84)) padding-box,
    linear-gradient(125deg, rgba(124,58,237,.40), rgba(37,99,235,.26), rgba(249,115,22,.22)) border-box;
  box-shadow: 0 26px 70px rgba(15,23,42,.12);
  overflow:hidden;
}
.heroGrid{
  display:grid;
  grid-template-columns: 1.06fr .94fr;
}
@media (max-width: 980px){ .heroGrid{grid-template-columns:1fr} }

.heroText{padding:34px 32px 30px}
.heroArt{
  border-left:1px solid var(--line);
  background: rgba(15,23,42,.01);
  display:grid; place-items:stretch;
}
@media (max-width: 980px){ .heroArt{border-left:0; border-top:1px solid var(--line)} }
.heroArt img{width:100%; height:100%; object-fit:cover; min-height: 280px}

.kicker{
  display:flex; flex-wrap:wrap; gap:10px; align-items:center;
  font-family: var(--mono);
  font-size:12px;
  color: var(--faint);
}
.pill{
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(124,58,237,.22);
  background: rgba(124,58,237,.07);
  color: rgba(2,6,23,.85);
}
.pill .dot{width:7px; height:7px; border-radius:50%; background: var(--accent)}
h1{
  font-family: var(--serif);
  margin:12px 0 10px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.03;
  letter-spacing: -.6px;
}
@media (max-width: 520px){ h1{font-size:34px} }

.sub{
  margin:0;
  color: var(--muted);
  font-size: 16px;
  max-width: 70ch;
}
.infoRow{
  display:flex; flex-wrap:wrap; gap:10px;
  margin-top:16px;
}
.chip{
  display:inline-flex; align-items:center; gap:10px;
  padding:10px 12px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(15,23,42,.02);
  color: rgba(2,6,23,.86);
  font-size:13px;
}
.chip b{font-family: var(--mono); font-weight:650; color: rgba(2,6,23,.72)}
.actions{display:flex; flex-wrap:wrap; gap:10px; margin-top:16px}
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:10px 14px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(15,23,42,.02);
  text-decoration:none;
  color: var(--ink);
  font-size:14px;
}
.btn.primary{
  border-color: rgba(124,58,237,.22);
  background: linear-gradient(135deg, rgba(124,58,237,.10), rgba(37,99,235,.08));
}
.btn small{font-family: var(--mono); font-size:11px; color: var(--faint)}

/* sections */
section{padding:34px 0}
.sectionHead{
  display:flex; align-items:baseline; justify-content:space-between;
  gap:14px;
  margin-bottom:12px;
}
.sectionHead h2{
  margin:0;
  font-size:18px;
  letter-spacing:.12px;
  text-transform: uppercase;
}
.sectionHead p{margin:0; color: var(--muted); font-size:13px}

/* cards & grids */
.grid{display:grid; gap:14px}
.grid.cols3{grid-template-columns: repeat(3, minmax(0,1fr))}
.grid.cols2{grid-template-columns: repeat(2, minmax(0,1fr))}
@media (max-width: 980px){
  .grid.cols3{grid-template-columns: repeat(2, minmax(0,1fr))}
}
@media (max-width: 560px){
  .grid.cols3,.grid.cols2{grid-template-columns:1fr}
}

.card{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.86);
  box-shadow: 0 10px 28px rgba(15,23,42,.06);
  overflow:hidden;
}
.cardPad{padding:16px}

/* big images */
.media{
  width: 100%;
  aspect-ratio: 1 / 1;         /* square tiles for 512×512 images */
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: rgba(15,23,42,.02);
}
.media img{
  width: 100%;
  height: 100%;
  object-fit: cover;           /* safe: container is square */
  object-position: center;
  display: block;
}

/* remove CV overlay artifacts from older markup */
.corners, .corner, .badge{display:none !important}

.personTitle{
  display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
}
.personTitle h3{
  margin:0;
  font-size:15px;
  letter-spacing:.1px;
}
.personTitle a.nameLink{
  text-decoration: underline;
  text-decoration-color: rgba(15,23,42,.18);
}
.personTitle .aff{
  margin-top:4px;
  color: var(--muted);
  font-size:13px;
}

ul.clean{
  margin:0;
  padding-left: 18px;
  color: var(--muted);
}
ul.clean li{margin:7px 0}

/* tables */
.tableWrap{
  overflow:auto;
  border-radius: var(--radius2);
  border:1px solid var(--line);
  background: rgba(255,255,255,.86);
  box-shadow: 0 10px 26px rgba(15,23,42,.06);
}
table{border-collapse:collapse; width:100%; min-width:680px}
th,td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
  font-size:13px;
}
th{
  font-family: var(--mono);
  color: rgba(2,6,23,.85);
  background: rgba(15,23,42,.02);
}
td{color: var(--muted)}
tr:last-child td{border-bottom:0}

/* footer */
.footer{
  padding:26px 0 48px;
  color: var(--faint);
  border-top:1px solid var(--line);
  font-size:12px;
  background: rgba(255,255,255,.55);
}
.footerGrid{
  display:grid;
  grid-template-columns: 1fr auto;
  gap:12px;
  align-items:center;
}
@media (max-width: 720px){ .footerGrid{grid-template-columns:1fr} }

kbd.key{
  padding:2px 6px;
  border-radius: 8px;
  border:1px solid var(--line);
  background: rgba(15,23,42,.02);
  font-size:11px;
  font-family: var(--mono);
  color: rgba(2,6,23,.70);
}


/* program: schedule + invited talks */
.tbdCard{border-radius: var(--radius2)}
.tbdText{
  margin:0;
  padding: 10px 2px;
  font-family: var(--mono);
  font-size: 16px;
  color: rgba(2,6,23,.78);
}

.talkList{display:grid; gap:14px}
.talk{
  display:flex;
  gap:18px;
  padding:16px;
  align-items:flex-start;
}
.talkLeft{
  width: 230px;
  flex: 0 0 230px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  padding-right: 14px;
  border-right: 1px solid var(--line);
}
.talkPhoto{
  width: 132px;
  height: 132px;
  border-radius: 24px;
  object-fit: cover;
  border: 1px solid rgba(15,23,42,.10);
  box-shadow: 0 14px 28px rgba(2,6,23,.10);
  background: rgba(15,23,42,.02);
}
.talkWho{display:flex; flex-direction:column; gap:4px; text-align:center}
.talkName{font-weight: 850; letter-spacing: -.2px}
.talkAff{font-family: var(--mono); font-size: 12px; color: var(--muted)}

.talkRight{flex:1; min-width:0}
.talkField{margin:0 0 10px; color: var(--muted); font-size:14px; line-height:1.6}
.talkField:last-child{margin-bottom:0}
.talkLabel{font-family: var(--mono); font-weight:650; color: rgba(2,6,23,.85)}

@media (max-width: 780px){
  .talk{flex-direction:column}
  .talkLeft{
    width:auto; flex: 0 0 auto;
    flex-direction:row;
    justify-content:flex-start;
    align-items:center;
    text-align:left;
    padding-right:0;
    border-right:0;
    padding-bottom:12px;
    border-bottom: 1px solid var(--line);
  }
  .talkWho{text-align:left}
  .talkPhoto{width:96px; height:96px; border-radius:18px}
}


/* organizers layout */
.grid.cols1{grid-template-columns:1fr}
.orgRow{display:flex; gap:18px; align-items:flex-start}
.orgLeft{flex:0 0 190px; display:flex; flex-direction:column; gap:10px}
.orgPhoto{width:190px; aspect-ratio:1/1; overflow:hidden; border-radius:14px; border:1px solid var(--line); background: rgba(15,23,42,.02)}
.orgPhoto img{width:100%; height:100%; object-fit:cover}
.orgMeta h3{margin:0; font-size:16px}
.orgMeta .aff{margin-top:6px; color: var(--muted); font-size:13px}
.orgMeta .email{margin-top:6px; font-family: var(--mono); font-size:12px}
.orgMeta .email a{text-decoration:underline; text-decoration-color: rgba(15,23,42,.18)}
.orgBio{flex:1; color: var(--muted); font-size:13px}
.orgBio p{margin:0 0 10px}
.orgBio p:last-child{margin-bottom:0}
@media (max-width: 720px){
  .orgRow{flex-direction:column}
  .orgLeft{flex:0 0 auto; width:100%}
  .orgPhoto{width:100%}
}