/* ============================================================
   Symbiosis Science — shared design system
   Editorial · restrained · dark
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

:root{
  --ink:#06080E;
  --ink-2:#090D16;
  --line:rgba(255,255,255,.085);
  --line-2:rgba(255,255,255,.16);
  --brass:#C9A227;
  --brass-l:#DFC271;
  --text:rgba(255,255,255,.84);
  --muted:rgba(255,255,255,.52);
  --faint:rgba(255,255,255,.32);
  --nav-h:64px;
  --pad:clamp(22px,5vw,64px);
  --max:1180px;
  --serif:'Playfair Display',Georgia,serif;
  --sans:'Inter',system-ui,-apple-system,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}

body{
  font-family:var(--sans);
  font-weight:300;
  background:var(--ink);
  color:var(--text);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block}
a{color:inherit}
::selection{background:rgba(201,162,39,.28)}
:focus-visible{outline:1px solid var(--brass-l);outline-offset:3px}

/* ---------- motion ---------- */
.rv{opacity:0;transform:translateY(20px);transition:opacity .8s cubic-bezier(.2,.6,.3,1),transform .8s cubic-bezier(.2,.6,.3,1)}
.rv.on{opacity:1;transform:none}
.stg>*{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.3,1),transform .6s cubic-bezier(.2,.6,.3,1)}
.stg.on>*{opacity:1;transform:none}
.stg.on>*:nth-child(1){transition-delay:.04s}.stg.on>*:nth-child(2){transition-delay:.09s}
.stg.on>*:nth-child(3){transition-delay:.14s}.stg.on>*:nth-child(4){transition-delay:.19s}
.stg.on>*:nth-child(5){transition-delay:.24s}.stg.on>*:nth-child(6){transition-delay:.29s}
.stg.on>*:nth-child(7){transition-delay:.34s}.stg.on>*:nth-child(8){transition-delay:.39s}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv,.stg>*{opacity:1!important;transform:none!important;transition:none!important}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* ---------- nav ---------- */
nav{position:fixed;top:0;left:0;right:0;z-index:200;height:var(--nav-h);
  background:rgba(6,8,14,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--pad);transition:background .3s,border-color .3s}
nav.on{background:rgba(6,8,14,.94);border-bottom-color:var(--line)}
.nlogo{display:block}
.nlogo img{height:24px;width:auto}
.nlinks{display:flex;align-items:center;gap:30px;list-style:none}
.nlinks a{font-family:var(--mono);font-size:10px;font-weight:400;letter-spacing:.18em;
  text-transform:uppercase;color:var(--faint);text-decoration:none;transition:color .25s}
.nlinks a:hover{color:var(--brass-l)}
.nright{display:flex;align-items:center;gap:16px}
.ncta{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brass-l);text-decoration:none;border:1px solid rgba(201,162,39,.4);padding:10px 20px;
  transition:background .25s,color .25s,border-color .25s;white-space:nowrap}
.ncta:hover{background:var(--brass-l);border-color:var(--brass-l);color:#0A0A0A}
.hbg{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.hbg span{display:block;width:22px;height:1px;background:#fff;transition:.3s}
.hbg.o span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hbg.o span:nth-child(2){opacity:0}
.hbg.o span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mmenu{position:fixed;top:var(--nav-h);left:0;right:0;background:rgba(6,8,14,.98);
  backdrop-filter:blur(20px);border-bottom:1px solid var(--line);z-index:199;
  padding:14px var(--pad) 28px;flex-direction:column;display:none}
.mmenu.o{display:flex}
.mmenu a{font-family:var(--serif);font-weight:400;font-size:21px;color:var(--muted);
  text-decoration:none;padding:14px 0;border-bottom:1px solid var(--line)}
.mmenu a:last-child{border-bottom:none}

/* ---------- shell ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
section.s{padding:clamp(72px,10vw,124px) 0;border-top:1px solid var(--line)}
section.s:first-of-type{border-top:none}
.s-alt{background:var(--ink-2)}

.eyebrow{font-family:var(--mono);font-size:9.5px;font-weight:500;letter-spacing:.26em;
  text-transform:uppercase;color:var(--brass);margin-bottom:22px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;color:#fff;letter-spacing:-.005em}
.h2{font-size:clamp(28px,3.8vw,46px);line-height:1.12;margin-bottom:20px}
.h2 em{font-style:italic;color:var(--brass-l)}
.lead{font-family:var(--serif);font-style:italic;font-weight:400;font-size:clamp(15px,1.7vw,18px);
  line-height:1.7;color:var(--muted);max-width:62ch}
.body{font-size:15.5px;line-height:1.9;color:var(--muted);max-width:66ch}
.body+.body{margin-top:18px}
.body strong{color:var(--text);font-weight:400}
.body em{font-style:italic;color:var(--brass-l)}
.note{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding:calc(var(--nav-h) + 56px) 0 72px;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 60% 45% at 62% 30%,rgba(201,162,39,.09),transparent 62%)}
.hero .wrap{position:relative;z-index:2}
.hero-meta{font-family:var(--mono);font-size:10px;font-weight:400;letter-spacing:.3em;
  text-transform:uppercase;color:var(--brass);margin-bottom:clamp(24px,4vw,40px)}
.hero-h{font-family:var(--serif);font-weight:400;font-size:clamp(40px,7.4vw,86px);
  line-height:1.03;letter-spacing:-.015em;color:#fff;max-width:16ch}
.hero-h em{font-style:italic;color:var(--brass-l)}
.hero-sup{font-family:var(--serif);font-style:italic;font-size:clamp(17px,2.3vw,26px);
  color:var(--brass-l);margin-top:18px}
.hero-sub{font-size:clamp(14.5px,1.7vw,17px);line-height:1.8;color:var(--muted);
  max-width:48ch;margin-top:clamp(20px,3vw,28px)}
.hero-act{display:flex;align-items:center;gap:clamp(18px,3vw,32px);flex-wrap:wrap;
  margin-top:clamp(30px,4.5vw,44px)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:11px;font-family:var(--mono);font-size:10.5px;
  font-weight:500;letter-spacing:.14em;text-transform:uppercase;padding:15px 30px;
  text-decoration:none;transition:background .25s,color .25s,border-color .25s;border:1px solid transparent}
.btn svg{transition:transform .25s}
.btn:hover svg{transform:translateX(4px)}
.btn-solid{background:var(--brass-l);color:#0A0A0A}
.btn-solid:hover{background:#fff}
.btn-line{border-color:var(--line-2);color:var(--text)}
.btn-line:hover{border-color:var(--brass-l);color:var(--brass-l)}
.link{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:10px;
  font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-l);
  text-decoration:none;transition:gap .25s}
.link:hover{gap:14px}

/* ---------- organizer / host lockup ---------- */
.lock{display:flex;flex-direction:column;gap:14px}
.lock-row{display:flex;align-items:center;gap:clamp(14px,2.5vw,26px);flex-wrap:wrap}
.lock-row+.lock-row{border-top:1px solid var(--line);padding-top:14px}
.lock-lab{font-family:var(--mono);font-size:8.5px;font-weight:500;letter-spacing:.24em;
  text-transform:uppercase;color:var(--faint);width:74px;flex-shrink:0}
.lock-set{display:flex;align-items:center;gap:clamp(16px,2.6vw,26px);flex-wrap:wrap}
.lock-set img{width:auto;opacity:.95}
.lock-set .l-sym{height:30px}
.lock-set .l-lc{height:46px}
.lock-set .l-adv{height:40px}
.lock-set .l-lindau{height:40px}
.lock-set .div{width:1px;height:24px;background:var(--line-2)}
.lock-txt{font-family:var(--serif);font-size:17px;color:#fff}
.lock-txt small{display:block;font-family:var(--mono);font-size:8.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--faint);margin-top:5px}

/* ---------- tabbed switcher (signature) ---------- */
.sw-tabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-top:clamp(30px,4vw,44px);
  position:relative;overflow-x:auto;scrollbar-width:none}
.sw-tabs::-webkit-scrollbar{display:none}
.sw-tab{appearance:none;background:none;border:none;cursor:pointer;padding:0 clamp(18px,3vw,34px) 20px 0;
  margin-right:clamp(18px,3vw,34px);text-align:left;position:relative;flex-shrink:0;
  border-bottom:1px solid transparent;margin-bottom:-1px;transition:border-color .3s}
.sw-tab:last-child{margin-right:0;padding-right:0}
.sw-tab .t-k{display:block;font-family:var(--mono);font-size:8.5px;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;color:var(--faint);margin-bottom:9px;transition:color .3s;white-space:nowrap}
.sw-tab .t-n{display:block;font-family:var(--serif);font-size:clamp(19px,2.3vw,27px);color:var(--muted);
  line-height:1.1;transition:color .3s;white-space:nowrap}
.sw-tab .t-d{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--faint);margin-top:9px;transition:color .3s;white-space:nowrap}
.sw-tab:hover .t-n{color:var(--text)}
.sw-tab[aria-selected="true"]{border-bottom-color:var(--brass)}
.sw-tab[aria-selected="true"] .t-k{color:var(--brass)}
.sw-tab[aria-selected="true"] .t-n{color:#fff}
.sw-tab[aria-selected="true"] .t-d{color:var(--brass-l)}

.sw-panels{position:relative}
.sw-panel{display:none;padding-top:clamp(34px,4.5vw,52px);animation:swin .5s cubic-bezier(.2,.6,.3,1)}
.sw-panel.on{display:block}
@keyframes swin{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.sw-panel{animation:none}}
.sw-head{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(30px,5vw,64px);align-items:start;
  padding-bottom:clamp(30px,4vw,44px);border-bottom:1px solid var(--line)}
.sw-facts{display:flex;flex-direction:column;gap:0}
.sw-fact{display:flex;justify-content:space-between;align-items:baseline;gap:18px;
  padding:12px 0;border-bottom:1px solid var(--line)}
.sw-fact:first-child{border-top:1px solid var(--line)}
.sw-fact dt{font-family:var(--mono);font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.sw-fact dd{font-family:var(--serif);font-size:16px;color:#fff;text-align:right}
.sw-body{padding-top:clamp(30px,4vw,44px)}

/* agenda inside panels */
.days{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,64px)}
.day-h{display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding-bottom:14px;border-bottom:1px solid var(--line-2);margin-bottom:26px}
.day-n{font-family:var(--serif);font-style:italic;font-size:22px;color:var(--brass-l)}
.day-d{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.slot{font-family:var(--mono);font-size:9px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--faint);margin:26px 0 12px}
.slot:first-of-type{margin-top:0}
.itm{display:flex;gap:14px;padding:8px 0;font-size:14.5px;line-height:1.65;color:var(--muted)}
.itm::before{content:'';flex-shrink:0;width:4px;height:4px;border-radius:50%;background:var(--brass);margin-top:9px}
.itm strong{color:var(--text);font-weight:400}
.itm em{font-style:italic;color:var(--faint)}
.tline{display:flex;gap:22px;align-items:baseline;padding:13px 0;border-bottom:1px solid var(--line)}
.tline:last-child{border-bottom:none}
.tline dt{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--brass);
  min-width:104px;flex-shrink:0}
.tline dd{font-size:14.5px;color:var(--muted)}

/* ---------- themes list ---------- */
.rows{margin-top:clamp(30px,4vw,48px);border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:52px 1.05fr 1.35fr;gap:clamp(16px,3vw,36px);
  align-items:baseline;padding:26px 0;border-bottom:1px solid var(--line);transition:background .3s}
.row:hover{background:rgba(255,255,255,.018)}
.row-n{font-family:var(--serif);font-style:italic;font-size:19px;color:var(--brass)}
.row-t{font-family:var(--serif);font-size:clamp(18px,2vw,23px);color:#fff;line-height:1.25}
.row-t small{display:block;font-family:var(--sans);font-style:normal;font-size:12px;
  letter-spacing:.02em;color:var(--brass-l);margin-top:7px;font-weight:300}
.row-d{font-size:14px;line-height:1.7;color:var(--muted)}

/* ---------- grids ---------- */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,60px)}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,3.5vw,44px)}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,2.5vw,32px)}
.g5{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(16px,2vw,24px)}
.col-top{border-top:1px solid var(--line-2);padding-top:22px}
.col-t{font-family:var(--serif);font-size:20px;color:#fff;margin-bottom:12px;line-height:1.25}
.col-k{font-family:var(--mono);font-size:9px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brass);margin-bottom:12px}
.col-d{font-size:14px;line-height:1.75;color:var(--muted)}
.col-d strong{color:var(--text);font-weight:400}
.col-d em{font-style:italic;color:var(--brass-l)}
.tick{list-style:none;margin-top:14px}
.tick li{position:relative;padding-left:16px;font-size:13.5px;line-height:1.7;color:var(--muted);margin-bottom:9px}
.tick li::before{content:'';position:absolute;left:0;top:9px;width:4px;height:1px;background:var(--brass)}

/* ---------- people ---------- */
.person{}
.person img{width:100%;aspect-ratio:23/27;object-fit:cover;filter:contrast(1.02) saturate(1.02);
  transition:filter .45s,transform .45s}
.person:hover img{transform:translateY(-3px)}
.person-n{font-family:var(--serif);font-size:17px;color:#fff;margin-top:15px;line-height:1.25}
.person-r{font-size:12.5px;color:var(--muted);margin-top:5px;line-height:1.5}
.person-o{font-family:var(--mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--brass);margin-top:6px}

.laur{display:grid;grid-template-columns:82px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}
.laur img{width:82px;aspect-ratio:23/28;object-fit:cover;transition:filter .45s}
.laur-ph{width:82px;aspect-ratio:23/28;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,.025);
  font-family:var(--mono);font-size:13px;letter-spacing:.16em;color:var(--faint)}
.laur-n{font-family:var(--serif);font-size:21px;color:#fff;line-height:1.2}
.laur-p{font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brass);margin-top:8px}
.laur-p .cf{color:var(--text)}
.laur-i{font-size:12.5px;color:var(--faint);margin-top:5px}
.laur-d{font-size:13.5px;line-height:1.75;color:var(--muted);margin-top:12px}

.name-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0 clamp(20px,3vw,40px);
  margin-top:clamp(28px,4vw,44px);border-top:1px solid var(--line)}
.nm{padding:18px 0;border-bottom:1px solid var(--line)}
.nm-n{font-family:var(--serif);font-size:16.5px;color:#fff;line-height:1.25}
.nm-r{font-size:12px;color:var(--muted);margin-top:5px}
.nm-t{font-family:var(--mono);font-size:8.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--brass);margin-top:6px}

/* ---------- stats ---------- */
.stats{display:flex;gap:clamp(28px,5vw,64px);flex-wrap:wrap}
.stat-n{font-family:var(--serif);font-size:clamp(30px,3.6vw,42px);color:var(--brass-l);line-height:1}
.stat-l{font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--faint);margin-top:11px;line-height:1.7;max-width:150px}

/* ---------- closing ---------- */
.close{padding:clamp(90px,13vw,150px) 0;text-align:center;border-top:1px solid var(--line);
  background:radial-gradient(ellipse 50% 60% at 50% 50%,rgba(201,162,39,.07),transparent 65%)}
.close h2{font-family:var(--serif);font-size:clamp(30px,4.6vw,54px);line-height:1.16;margin-bottom:18px}
.close h2 em{font-style:italic;color:var(--brass-l)}
.close p{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--faint);margin-bottom:38px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:36px 0 40px}
.foot{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;flex-wrap:wrap}
.foot-logos{display:flex;align-items:center;gap:20px;flex-wrap:wrap;opacity:.45}
.foot-logos img{width:auto}
.foot-logos .l-sym{height:22px}
.foot-logos .l-lc{height:30px}
.foot-logos .l-lindau{height:24px}
.foot-logos .l-adv{height:26px}
.fcopy{font-family:var(--mono);font-size:9px;line-height:1.9;color:rgba(255,255,255,.24);
  letter-spacing:.06em;max-width:46ch}
.flinks{display:flex;gap:22px;list-style:none;flex-wrap:wrap}
.flinks a{font-family:var(--mono);font-size:9.5px;color:var(--faint);text-decoration:none;
  letter-spacing:.12em;text-transform:uppercase;transition:color .25s}
.flinks a:hover{color:var(--brass-l)}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .g4,.g5{grid-template-columns:repeat(3,1fr)}
  .name-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:860px){
  .nlinks{display:none}
  .hbg{display:flex}
  .hero{min-height:auto;padding:calc(var(--nav-h) + 64px) 0 64px}
  .sw-head{grid-template-columns:1fr;gap:30px}
  .days{grid-template-columns:1fr;gap:44px}
  .row{grid-template-columns:34px 1fr;gap:12px 16px}
  .row-d{grid-column:2}
  .g2,.g3{grid-template-columns:1fr}
  .g4,.g5{grid-template-columns:repeat(2,1fr)}
  .name-grid{grid-template-columns:repeat(2,1fr)}
  .lock-lab{width:100%;margin-bottom:2px}
  .foot{flex-direction:column;gap:22px}
}
@media(max-width:520px){
  .g4,.g5,.name-grid{grid-template-columns:1fr 1fr}
  .laur{grid-template-columns:64px 1fr;gap:16px}
  .laur img,.laur-ph{width:64px}
  .tline{flex-direction:column;gap:5px}
  .tline dt{min-width:0}
}

/* ---------- figures (host imagery, past editions) ---------- */
.figs{display:grid;gap:clamp(14px,2vw,24px);margin-top:clamp(26px,3.5vw,42px)}
.figs-2{grid-template-columns:1fr 1fr}
.fig{margin:0}
.fig img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line);
  filter:grayscale(28%) contrast(1.02);transition:filter .55s,transform .55s}
.fig:hover img{filter:grayscale(0);transform:translateY(-2px)}
.fig-c{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-top:11px;
  font-family:var(--mono);font-size:8.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.fig-c b{font-weight:400;color:var(--muted)}

/* logo lockup beside a section heading */
.host-head{display:flex;align-items:flex-start;justify-content:space-between;
  gap:clamp(22px,4vw,52px);flex-wrap:wrap}
.host-head>div:first-child{flex:1 1 420px;min-width:0}
.host-mark{flex-shrink:0;padding-top:6px}
.host-mark img{height:clamp(44px,4.6vw,62px);width:auto;opacity:.92}

/* past-edition card image */
.ed-img{width:100%;aspect-ratio:21/9;object-fit:cover;border:1px solid var(--line);
  margin-bottom:16px;filter:grayscale(30%) contrast(1.02);transition:filter .55s}
.col-top:hover .ed-img{filter:grayscale(0)}

/* partner block with a mark */
.pt-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:12px}
.pt-head .col-t{margin-bottom:0}
.pt-head img{height:clamp(46px,4.4vw,58px);width:auto;flex-shrink:0;border-radius:2px;
  box-shadow:0 0 0 1px rgba(255,255,255,.10)}

/* ---------- registration (Luma) ---------- */
.reg{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,1.6vw,18px);
  margin-top:clamp(26px,3.5vw,40px)}
.reg-a{display:block;text-decoration:none;border:1px solid var(--line-2);
  padding:clamp(18px,2.2vw,24px);transition:border-color .3s,background .3s,transform .3s}
.reg-a:hover{border-color:var(--brass-l);background:rgba(255,255,255,.022);transform:translateY(-2px)}
.reg-k{font-family:var(--mono);font-size:8.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--brass);margin-bottom:12px}
.reg-t{font-family:var(--serif);font-size:19px;color:#fff;line-height:1.25;margin-bottom:8px}
.reg-d{font-size:12.5px;line-height:1.6;color:var(--muted)}
.reg-go{display:inline-flex;align-items:center;gap:8px;margin-top:15px;font-family:var(--mono);
  font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-l);transition:gap .25s}
.reg-a:hover .reg-go{gap:13px}

@media(max-width:860px){
  .figs-2{grid-template-columns:1fr}
  .reg{grid-template-columns:1fr}
  .host-mark{padding-top:0}
  .pt-head{flex-wrap:wrap;gap:12px}
}

/* ---- Portrait-wall hero (Nobel Heroes Day) ---- */
.hero-wall::before{content:'';position:absolute;inset:0;z-index:0;
  background:url('hero-mosaic.jpg') center/cover no-repeat;opacity:.26}
.hero-wall .veil{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(100deg,var(--ink) 24%,rgba(6,8,14,.88) 52%,rgba(6,8,14,.62) 100%),
             linear-gradient(180deg,var(--ink) 0%,transparent 20%,transparent 70%,var(--ink) 100%)}
@media(max-width:860px){
  .hero-wall::before{opacity:.20}
  .hero-wall .veil{background:linear-gradient(180deg,rgba(6,8,14,.90),rgba(6,8,14,.82))}
}
/* confirmed marker on laureate rows */
.cf-dot{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:8.5px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--brass-l);margin-left:10px}
.cf-dot i{width:4px;height:4px;border-radius:50%;background:var(--brass-l);display:block}
/* two-column laureate list */
.laur-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(28px,5vw,60px);
  margin-top:clamp(30px,4vw,48px);border-top:1px solid var(--line)}
@media(max-width:860px){.laur-grid{grid-template-columns:1fr}}

/* ============================================================
   Portrait frame with monogram fallback
   Drop a real .jpg into assets/speakers/ using the filename in
   the <img src> and it replaces the monogram automatically.
   ============================================================ */
.ph{position:relative;width:100%;aspect-ratio:23/27;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:
    radial-gradient(120% 90% at 50% 0%,rgba(201,162,39,.10),transparent 62%),
    linear-gradient(168deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  transition:transform .45s,border-color .45s}
.ph .mono{font-family:var(--serif);font-size:clamp(20px,2.4vw,30px);
  letter-spacing:.10em;color:rgba(223,194,113,.52);line-height:1;
  user-select:none;pointer-events:none}
.ph img{position:absolute;inset:0;width:100%;height:100%;aspect-ratio:auto;
  object-fit:cover;filter:contrast(1.02) saturate(1.02);transition:filter .45s}
.person:hover .ph{transform:translateY(-3px);border-color:var(--line-2)}
.person-x{font-size:11.5px;line-height:1.62;color:rgba(255,255,255,.40);margin-top:9px}
/* two-line name well, so roles baseline-align across a row */
.g5 .person-n,.g4 .person-n{min-height:2.5em}
@media(max-width:560px){.g5 .person-n,.g4 .person-n{min-height:0}}

/* laureate-row variant */
.laur .ph{width:82px;aspect-ratio:23/28}
.laur .ph .mono{font-size:17px}
@media(max-width:560px){.laur .ph{width:64px}.laur .ph .mono{font-size:14px}}

/* speaker category heading */
.spk-cat{margin-top:clamp(64px,9vw,110px)}

/* ============================================================
   2026 KEY-VISUAL SYSTEM — Nobel Heroes & AI4SCI Summit
   Warm sand/orange palette taken from the summit posters.
   Everything below is additive: no rule above is modified, so
   index.html and masters-of-abstraction.html are untouched.
   ============================================================ */
:root{
  --kv:#F1B473;                     /* poster orange */
  --kv-d:#D9964F;
  --kv-line:rgba(241,180,115,.38);
  --kv-glow:rgba(241,180,115,.10);
}

/* ---------- day key visual inside the agenda ---------- */
.day-kv{margin-bottom:clamp(22px,3vw,30px)}
.kv{margin:0;position:relative;overflow:hidden}
.kv img{width:100%;aspect-ratio:2.014/1;object-fit:cover;
  border:1px solid var(--line-2);transition:transform .6s cubic-bezier(.2,.6,.3,1),border-color .5s}
.kv:hover img{transform:scale(1.012);border-color:var(--kv-line)}
.day-co{display:flex;flex-wrap:wrap;align-items:baseline;gap:5px 12px;margin-top:14px}
.day-co-k{font-family:var(--mono);font-size:8.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--faint);flex-shrink:0}
.day-co-v{font-size:13px;line-height:1.55;color:var(--text)}
.day-co-v i{font-style:normal;color:var(--kv);margin:0 6px}

/* ---------- registration, merged into the programme ---------- */
.reg-block{margin-top:clamp(52px,7vw,88px);padding-top:clamp(32px,4.2vw,46px);
  border-top:1px solid var(--line-2)}
.reg-head{display:flex;align-items:baseline;justify-content:space-between;
  gap:clamp(16px,3vw,44px);flex-wrap:wrap}
.reg-head .eyebrow{margin-bottom:0}
.reg-lead{font-family:var(--serif);font-style:italic;font-size:15px;line-height:1.6;
  color:var(--muted);max-width:520px}
.reg-a:hover{border-color:var(--kv-line)}
.reg-a:hover .reg-go{color:var(--kv)}

/* ---------- themes: key-visual cards ---------- */
.tgrid{display:grid;grid-template-columns:repeat(6,1fr);
  gap:clamp(14px,1.8vw,22px);margin-top:clamp(34px,4.6vw,54px)}
.tcard{grid-column:span 2;position:relative;overflow:hidden;display:flex;flex-direction:column;
  padding:clamp(26px,2.8vw,34px) clamp(22px,2.4vw,30px) clamp(24px,2.6vw,32px);
  border:1px solid var(--line);
  background:linear-gradient(168deg,rgba(255,255,255,.034),rgba(255,255,255,.006));
  transition:transform .5s cubic-bezier(.2,.6,.3,1),border-color .5s,background .5s}
.tcard:nth-child(4),.tcard:nth-child(5){grid-column:span 3}
/* texture bar lifted straight from the poster artwork */
.tcard::before{content:'';position:absolute;top:0;left:0;right:0;height:8px;z-index:1;
  background:url('keyvisual/texture.jpg') 0% 16%/200% auto no-repeat;
  opacity:.92;transition:opacity .5s,height .5s}
.tcard:nth-child(2)::before{background-position:30% 8%}
.tcard:nth-child(3)::before{background-position:58% 26%}
.tcard:nth-child(4)::before{background-position:84% 12%}
.tcard:nth-child(5)::before{background-position:100% 30%}
.tcard::after{content:'';position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(120% 90% at 88% 0%,var(--kv-glow),transparent 60%);
  transition:opacity .5s}
.tcard:hover{transform:translateY(-4px);border-color:var(--kv-line);
  background:linear-gradient(168deg,rgba(255,255,255,.05),rgba(255,255,255,.012))}
.tcard:hover::before{opacity:1;height:11px}
.tcard:hover::after{opacity:1}
.tc-n{position:absolute;top:clamp(20px,2.1vw,26px);right:clamp(20px,2.2vw,28px);
  font-family:var(--serif);font-style:italic;font-size:clamp(38px,4.6vw,58px);
  line-height:1;color:var(--kv);opacity:.24;user-select:none;pointer-events:none;
  transition:opacity .5s}
.tcard:hover .tc-n{opacity:.46}
.tc-t{font-family:var(--serif);font-weight:400;font-size:clamp(21px,2.3vw,27px);
  line-height:1.2;color:#fff;padding-right:52px}
.tc-s{font-family:var(--mono);font-size:9px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--kv);margin-top:11px;line-height:1.6}
.tc-d{font-size:13.5px;line-height:1.75;color:var(--muted);margin-top:auto;
  padding-top:18px;border-top:1px solid var(--line);max-width:46em}
.tc-s{margin-bottom:18px}

/* ---------- laureates: poster-derived mosaic ---------- */
.laur-head{display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:clamp(30px,5vw,64px);align-items:center}
.laur-kv{margin:0;flex-shrink:0}
.laur-kv img{width:clamp(210px,26vw,340px);border:1px solid var(--line-2);
  transition:transform .6s cubic-bezier(.2,.6,.3,1),border-color .5s}
.laur-kv:hover img{transform:translateY(-3px);border-color:var(--kv-line)}
.laur-kv figcaption{font-family:var(--mono);font-size:8px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--faint);margin-top:10px;text-align:right}

.lgrid{display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(30px,3.6vw,46px) clamp(18px,2.2vw,28px);margin-top:clamp(38px,5vw,62px)}
.lcard{display:flex;flex-direction:column;min-width:0}
.lcard .ph{aspect-ratio:23/28;border-color:var(--line-2);width:100%}
.lcard .ph img{filter:grayscale(20%) contrast(1.04);transition:filter .55s,transform .6s}
.lcard:hover .ph img{filter:grayscale(0) contrast(1.04);transform:scale(1.02)}
/* the black caption plate from the poster, overlapping the portrait */
.lplate{position:relative;z-index:2;align-self:flex-start;max-width:96%;
  margin-top:clamp(-58px,-5vw,-44px);padding:12px 17px 13px;
  background:#141414;border-left:2px solid var(--kv);
  box-shadow:0 6px 16px rgba(0,0,0,.34);transition:border-color .45s}
.lcard:hover .lplate{border-left-color:#fff}
.lp-n{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.09em;
  text-transform:uppercase;color:#fff;line-height:1.35}
.lp-p{font-family:var(--mono);font-size:8.5px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--kv);margin-top:7px;line-height:1.5}
.lp-i{font-size:12.5px;line-height:1.6;color:var(--faint);margin-top:18px}
.lp-d{font-size:13.5px;line-height:1.75;color:var(--muted);margin-top:11px}
/* sixth cell of the mosaic — texture panel, as on the poster */
.lcard-tba{position:relative;overflow:hidden;display:flex;flex-direction:column;
  justify-content:flex-end;min-height:230px;padding:clamp(24px,3vw,32px);
  border:1px solid var(--line)}
.lcard-tba::before{content:'';position:absolute;inset:0;
  background:url('keyvisual/texture.jpg') center/cover no-repeat;opacity:.30}
.lcard-tba::after{content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,13,22,.44) 0%,rgba(9,13,22,.90) 76%)}
.lcard-tba .tba-bar{position:absolute;top:0;left:0;right:0;height:7px;z-index:2;
  background:url('keyvisual/texture.jpg') 10% 24%/200% auto no-repeat;opacity:.85}
.lcard-tba>*{position:relative;z-index:1}
.tba-k{font-family:var(--mono);font-size:8.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--kv)}
.tba-t{font-family:var(--serif);font-style:italic;font-size:clamp(19px,2vw,23px);
  color:#fff;line-height:1.3;margin-top:12px}

@media(max-width:1000px){
  .tgrid{grid-template-columns:repeat(4,1fr)}
  .tcard,.tcard:nth-child(4){grid-column:span 2}
  .tcard:nth-child(5){grid-column:span 4}
  .lgrid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:860px){
  .laur-head{grid-template-columns:1fr;gap:32px}
  .laur-kv img{width:min(300px,72vw)}
  .laur-kv figcaption{text-align:left}
  .reg-head{gap:14px}
}
@media(max-width:640px){
  .tgrid{grid-template-columns:1fr}
  .tcard,.tcard:nth-child(4),.tcard:nth-child(5){grid-column:span 1}
  .lgrid{grid-template-columns:1fr;gap:34px}
  .lcard .ph{max-width:340px}
  .lplate{margin-top:-46px}
  .lcard-tba{min-height:170px}
}