*,*::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{--white:#FFFFFF;--cobalt:#183E8E;--orange:#EA6B2D;--mint:#8BD2BF;--pale:#EDF0F2;
 --otext:#b44712;
 --black:#17202A;--quiet:#5c6772;--rule:#d6dce1}
body{background:var(--white);color:var(--black);
 font:400 17px/1.7 "IBM Plex Sans",system-ui,sans-serif}
h1,h2,h3,h4{font-family:"Familjen Grotesk","IBM Plex Sans",system-ui,sans-serif;
 font-weight:700;margin:0;letter-spacing:-.016em}
.sw-w{max-width:1320px;margin:0 auto;padding:0 28px}

/* ---- slim top header ---- */
.sw-hd{background:var(--black);color:#fff}
.sw-hd-in{max-width:1320px;margin:0 auto;padding:9px 28px;display:flex;
 gap:6px 26px;align-items:center;flex-wrap:wrap}
.sw-hd-id{margin:0;font-family:"Familjen Grotesk","IBM Plex Sans",system-ui,sans-serif;
 font-weight:700;font-size:14.5px}
.sw-hn{list-style:none;margin:0 0 0 auto;padding:0;display:flex;gap:0 22px;
 flex-wrap:wrap}
.sw-hn a{display:inline-block;padding:7px 0;color:#fff;text-decoration:none;
 font-size:14px;font-weight:600}
.sw-hn a:hover{color:var(--mint)}

/* ---- identity block + six switch plates ---- */
.sw-op{padding:40px 0 0}
.sw-top{max-width:1320px;margin:0 auto;padding:0 28px;display:grid;
 grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:34px;align-items:start}
.sw-id{background:var(--cobalt);color:#dbe4f5;padding:28px}
.sw-k{margin:0 0 12px;font-size:13.5px;font-weight:700;color:var(--mint)}
h1{font-size:clamp(34px,4vw,60px);line-height:1.02;color:#fff}
.sw-id dl{margin:22px 0 0;display:grid;grid-template-columns:auto minmax(0,1fr);
 gap:7px 16px}
.sw-id dt{font-size:12.5px;color:#a9bbdd}
.sw-id dd{margin:0;font-size:15px;font-weight:600;color:#fff}
.sw-id-note{margin:20px 0 0;font-size:13.5px;color:#a9bbdd}

/* twelve units, so six genuinely different plate widths fit without any of
   them getting too narrow for its own label. */
.sw-plates{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));
 grid-auto-rows:minmax(112px,auto);gap:14px}
.sw-p{display:flex;flex-direction:column;gap:8px;padding:18px;
 background:var(--pale);color:var(--black);text-decoration:none;
 border-top:6px solid var(--cobalt);
 transition:transform .08s linear,background-color .08s linear}
.sw-p:hover{background:#e2e7eb}
.sw-p:active{transform:translateY(2px);background:var(--cobalt);color:#fff}
.sw-p:active .sw-p-go,.sw-p:active .sw-p-d{color:#cfdbf3}
.sw-p:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.sw-p:nth-child(1){grid-column:1/6;grid-row:1/3;border-top-color:var(--orange)}
.sw-p:nth-child(2){grid-column:6/13;grid-row:1}
.sw-p:nth-child(3){grid-column:6/10;grid-row:2;border-top-color:var(--mint)}
.sw-p:nth-child(4){grid-column:10/13;grid-row:2;border-top-color:var(--mint)}
.sw-p:nth-child(5){grid-column:1/5;grid-row:3;border-top-color:var(--black)}
.sw-p:nth-child(6){grid-column:5/13;grid-row:3}
.sw-ic{width:26px;height:26px;color:var(--cobalt);flex:none}
.sw-p:active .sw-ic{color:#fff}
.sw-p h2{font-size:19px;line-height:1.2}
.sw-p:nth-child(1) h2{font-size:clamp(21px,2vw,27px)}
.sw-p-d{margin:0;font-size:14px;color:#3c4752;line-height:1.5}
.sw-p-go{margin:auto 0 0;font-size:13.5px;font-weight:700;color:var(--cobalt)}
.sw-strip{margin:34px 0 0}
.sw-strip img{width:100%;height:auto;aspect-ratio:32/9;object-fit:cover;
 object-position:50% 42%}
.sw-strip figcaption{max-width:1320px;margin:0 auto;padding:11px 28px;
 font-size:12.5px;color:var(--quiet)}

/* ---- sections ---- */
.sw-s{padding:66px 0}
.sw-s--pale{background:var(--pale)}
.sw-s--dark{background:var(--black);color:#c9d1d9}
.sw-s--dark h2,.sw-s--dark h3,.sw-s--dark h4{color:#fff}
h2{font-size:clamp(26px,3vw,42px);line-height:1.07;margin:0 0 16px}
.sw-lead{font-size:18.5px;max-width:68ch;margin:0 0 28px;color:#3c4752}
.sw-s--dark .sw-lead{color:#9fabb6}
.sw-more{margin:30px 0 0;font-weight:700}
.sw-more a{color:var(--cobalt)}
.sw-s--dark .sw-more a{color:var(--mint)}

/* ---- the broad timetable ---- */
.sw-tt{display:grid;gap:0;border-top:3px solid var(--black)}
.sw-trow{display:grid;grid-template-columns:minmax(0,13rem) minmax(0,1fr);
 gap:16px 34px;padding:24px 0;border-bottom:1px solid var(--rule)}
.sw-trow h3{font-size:21px;line-height:1.18}
.sw-tday{margin:4px 0 0;font-size:14px;font-weight:700;color:var(--otext)}
.sw-tcount{margin:2px 0 0;font-size:13.5px;color:var(--quiet)}
.sw-tsess{list-style:none;margin:0;padding:0;display:grid;
 grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.sw-tsess li{border-left:3px solid var(--mint);padding:0 0 0 14px}
.sw-tsess h4{font-size:16.5px;line-height:1.3}
.sw-when{margin:4px 0 0;font-size:13px;color:var(--quiet)}
.attr{margin:4px 0 0;font-size:13.5px;color:#3c4752}

/* ---- speakers: one horizontal sequence ---- */
.sw-seq{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px}
.sw-sp{background:var(--white);padding:0}
.sw-sp img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover}
.sw-sp h3{margin:14px 0 0;font-size:19px;line-height:1.2}
.sw-sp-r{margin:5px 0 0;font-size:14px;color:#3c4752}
.sw-sp-o{margin:3px 0 0;font-size:14px;font-weight:700;color:var(--cobalt)}
.sw-sp-s{margin:11px 0 0;font-size:14.5px;font-weight:700}
.sw-sp-w{margin:3px 0 0;font-size:12.5px;color:var(--quiet)}

/* ---- participation / sponsor / venue / gallery ---- */
.sw-modes{list-style:none;margin:0;padding:0;display:grid;
 grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
.sw-modes li{padding:24px;border:2px solid var(--black)}
.sw-modes li+li{border-left:0}
.sw-modes h3{font-size:20px;margin:0 0 8px}
.sw-modes p{margin:0;color:#3c4752}
.sw-spon{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:34px;
 align-items:start}
.sw-spon-card{background:var(--cobalt);color:#dbe4f5;padding:24px}
.sw-spon-card h3{font-size:19px;margin:0 0 10px;color:#fff}
.sw-spon-card p{margin:0 0 8px;font-size:15px}
.sw-spon-card a{color:var(--mint);font-weight:700}
.sw-venue{margin:0;display:grid;grid-template-columns:minmax(0,13rem) minmax(0,1fr);
 gap:0 30px;max-width:900px}
.sw-venue dt{font-size:13.5px;color:var(--quiet);padding:11px 0;
 border-top:1px solid var(--rule)}
.sw-venue dd{margin:0;padding:11px 0;border-top:1px solid var(--rule);font-weight:600}
.sw-gal{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.sw-gal figure{margin:0}
.sw-gal img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.sw-gal figcaption{margin-top:9px;font-size:12.5px;color:var(--quiet)}

/* ---- faq / legal ---- */
.sw-q{border-top:1px solid var(--rule);padding:4px 0}
.sw-q summary{font-family:"Familjen Grotesk","IBM Plex Sans",system-ui,sans-serif;
 font-weight:700;font-size:18.5px;padding:13px 0}
.sw-q p{margin:0 0 16px;max-width:70ch;color:#3c4752}
.sw-legal{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
.sw-legal h3{font-size:18px;margin:0 0 10px}
.sw-legal p{margin:0 0 10px;font-size:15px;color:#3c4752}
.sw-legal a{color:var(--cobalt);font-weight:700}

/* ---- footer ---- */
.ft{background:var(--black);color:#c4ccd4}
.ft-in{max-width:1320px;margin:0 auto;padding:52px 28px;display:grid;gap:12px}
.ft-org strong{color:#fff}
.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:#a4aeb8;margin:0;max-width:78ch}
.ft-contact a{color:#fff}
.ft-c{font-size:13px;color:#929ca6;margin:10px 0 0}

@media (max-width:1100px){
  .sw-seq{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sw-tsess{grid-template-columns:minmax(0,1fr)}
  .sw-spon,.sw-legal{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:860px){
  /* identity block, then a two-column plate group, then the full-width image */
  .sw-top{grid-template-columns:minmax(0,1fr);gap:24px}
  .sw-plates{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:auto}
  .sw-p:nth-child(1){grid-column:1/3;grid-row:auto}
  .sw-p:nth-child(2){grid-column:1/3;grid-row:auto}
  .sw-p:nth-child(3){grid-column:1/2;grid-row:auto}
  .sw-p:nth-child(4){grid-column:2/3;grid-row:auto}
  .sw-p:nth-child(5){grid-column:1/2;grid-row:auto}
  .sw-p:nth-child(6){grid-column:2/3;grid-row:auto}
  .sw-strip img{aspect-ratio:2/1}
  .sw-trow{grid-template-columns:minmax(0,1fr);gap:12px}
  .sw-modes{grid-template-columns:minmax(0,1fr)}
  .sw-modes li+li{border-left:2px solid var(--black);border-top:0}
  .sw-gal{grid-template-columns:minmax(0,1fr)}
  .sw-venue{grid-template-columns:minmax(0,1fr);gap:0}
  .sw-venue dt{padding-bottom:0}
  .sw-venue dd{padding-top:2px;border-top:0}
  .sw-s{padding:50px 0}
}
@media (max-width:420px){
  /* one column, but the accent edges stay different so they never read as a
     set of identical cards. */
  .sw-plates{grid-template-columns:minmax(0,1fr)}
  .sw-p:nth-child(n){grid-column:1}
  .sw-p:nth-child(2){border-top-color:var(--cobalt);border-left:6px solid var(--cobalt)}
  .sw-p:nth-child(3){border-left:6px solid var(--mint)}
  .sw-p:nth-child(5){border-left:6px solid var(--black)}
  .sw-seq{grid-template-columns:minmax(0,1fr)}
}