*,*::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;--signal:#1558C9;--ink:#17263A;--coral:#E45447;--sky:#E4EEF9;
 --quiet:#5a6b80;--rule:#cfdcea}
body{background:var(--white);color:var(--ink);
 font:400 17px/1.66 "IBM Plex Sans",system-ui,sans-serif}
h1,h2,h3,h4{font-family:"IBM Plex Sans Condensed","IBM Plex Sans",system-ui,sans-serif;
 font-weight:700;letter-spacing:-.005em}
.sr-w{max-width:1260px;margin:0 auto;padding:0 24px}

/* ---- narrow top navigation, links set on the lane alignment points ---- */
.sr-hd{border-bottom:2px solid var(--ink)}
.sr-hd-in{max-width:1260px;margin:0 auto;padding:10px 24px;display:flex;
 flex-wrap:wrap;gap:8px 28px;align-items:center;justify-content:space-between}
.sr-mark{margin:0;font-family:"IBM Plex Sans Condensed",system-ui,sans-serif;
 font-size:16px;font-weight:700;display:flex;align-items:center;gap:9px}
.sr-tick{width:4px;height:19px;background:var(--coral);display:inline-block;flex:none}
.sr-nav{list-style:none;margin:0;padding:0;display:grid;
 grid-template-columns:repeat(4,minmax(0,1fr));gap:0 26px}
.sr-nav a{display:block;padding:10px 0 9px;border-top:2px solid var(--sky);
 text-decoration:none;font-size:14.5px;font-weight:500}
.sr-nav a:hover{border-top-color:var(--signal);color:var(--signal)}

/* ---- four unequal lanes. Relay bars only ever sit on these three alignment
   points, so boundary crossings stay sparse instead of becoming a border. ---- */
.sr-lanes{border-bottom:2px solid var(--ink)}
.sr-lane{position:relative}
.sr-bar{position:absolute;top:-14px;width:5px;height:28px;background:var(--coral);
 z-index:2}
.sr-bar--a{left:17%}
.sr-bar--b{left:49%}
.sr-bar--c{left:78%}

/* lane 1 -- narrow: dates and location */
.sr-l1{background:var(--sky);border-bottom:1px solid var(--rule)}
.sr-l1 dl{margin:0;max-width:1260px;margin:0 auto;padding:13px 24px;display:flex;
 flex-wrap:wrap;gap:4px 34px;align-items:baseline}
/* flex:none on the term -- BASE_CSS sets min-width:0 inside <header>/<main>,
   so otherwise a narrow lane breaks "Venue" across two lines. */
.sr-l1 dt{font-size:13px;color:var(--quiet);flex:none}
.sr-l1 dd{margin:0 0 0 7px;font-size:15px;font-weight:600}
.sr-l1 .sr-pair{display:flex;align-items:baseline;gap:0}

/* lane 2 -- largest: identity, actions, photo in the final third */
.sr-l2{border-bottom:1px solid var(--rule)}
.sr-l2-in{max-width:1260px;margin:0 auto;padding:46px 24px 40px;display:grid;
 grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:38px;align-items:end}
.sr-kick{margin:0 0 12px;font-size:15px;font-weight:600;color:var(--signal)}
h1{margin:0;font-size:clamp(38px,5.7vw,78px);line-height:1.01}
.sr-sub{margin:14px 0 0;font-size:19px;max-width:44ch;color:#33465c}
.sr-acts{margin:26px 0 0;display:flex;gap:12px;flex-wrap:wrap}
.sr-a{display:inline-block;padding:13px 24px;font-weight:600;font-size:15px;
 text-decoration:none;background:var(--signal);color:var(--white)}
.sr-a--o{background:var(--white);color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}
.sr-a:hover{background:var(--ink);color:var(--white);box-shadow:none}
.sr-shot{margin:0}
.sr-shot img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.sr-shot figcaption{margin-top:8px;font-size:12px;color:var(--quiet)}

/* lanes 3 and 4 -- two real programme statements, unequal depth */
.sr-l3,.sr-l4{border-bottom:1px solid var(--rule)}
.sr-l4{border-bottom:0}
.sr-st{max-width:1260px;margin:0 auto;padding:30px 24px;display:grid;
 grid-template-columns:minmax(0,7.5rem) minmax(0,1fr);gap:8px 30px;align-items:baseline}
.sr-l4 .sr-st{padding:22px 24px}
.sr-st-n{margin:0;font-family:"IBM Plex Sans Condensed",system-ui,sans-serif;
 font-size:40px;font-weight:700;line-height:1;color:var(--signal)}
.sr-l4 .sr-st-n{font-size:30px;color:var(--coral)}
.sr-st h2{margin:0 0 5px;font-size:21px}
.sr-st p{margin:0;color:#33465c;max-width:74ch}

/* ---- sections ---- */
.sr-s{padding:64px 0}
.sr-s--tint{background:var(--sky)}
.sr-s--ink{background:var(--ink);color:#dce7f4}
.sr-s--ink h2,.sr-s--ink h3{color:var(--white)}
h2{font-size:clamp(26px,3vw,40px);margin:0 0 14px;line-height:1.12}
.sr-lead{font-size:18.5px;max-width:68ch;margin:0 0 28px;color:#33465c}
.sr-s--ink .sr-lead{color:#c5d6e9}
.sr-more{margin:30px 0 0;font-weight:600}
.sr-more a{color:var(--signal)}
.sr-s--ink .sr-more a{color:#8ab6ff}

.sr-sig{list-style:none;margin:0;padding:0;display:grid;gap:0}
.sr-sig li{display:grid;grid-template-columns:minmax(0,15rem) minmax(0,1fr);
 gap:6px 34px;padding:20px 0;border-top:2px solid var(--ink)}
.sr-sig h3{margin:0;font-size:20px}
.sr-sig p{margin:0;color:#33465c}

/* ---- agenda: one long horizontal lane per day ---- */
.sr-days{display:grid;gap:0}
.sr-day{position:relative;border-top:2px solid var(--ink);padding:26px 0}
.sr-day:last-child{border-bottom:2px solid var(--ink)}
.sr-day-in{display:grid;grid-template-columns:minmax(0,19rem) minmax(0,1fr);
 gap:18px 40px;align-items:start}
.sr-day-h h3{margin:0;font-size:23px}
.sr-day-date{margin:5px 0 0;font-weight:600;color:var(--signal);font-size:15px}
.sr-day-c{margin:3px 0 0;font-size:13.5px;color:var(--quiet);
 font-variant-numeric:tabular-nums}
.sr-day-t{margin:10px 0 0;font-size:15px;color:#33465c;max-width:36ch}
.sr-ex{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.sr-ex li{display:grid;grid-template-columns:minmax(0,7.5rem) minmax(0,1fr);
 gap:4px 24px;padding-left:16px;border-left:3px solid var(--sky)}
.sr-ex-t{margin:0;font-weight:600;font-size:14.5px;font-variant-numeric:tabular-nums}
.sr-ex h4{margin:0;font-size:17px}
.sr-ex-r{margin:2px 0 0;font-size:13.5px;color:var(--quiet)}
.attr{margin:5px 0 0;font-size:13.5px;color:#33465c}

/* ---- speakers: three-line unit beside a modest headshot ---- */
.sr-units{list-style:none;margin:0;padding:0;display:grid;
 grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 44px}
.sr-u{display:grid;grid-template-columns:72px minmax(0,1fr);gap:18px;
 align-items:start;padding-top:16px;border-top:2px solid var(--signal)}
.sr-u:nth-child(4n+2),.sr-u:nth-child(4n+3){border-top-color:var(--coral)}
.sr-u img{width:72px;height:72px;object-fit:cover}
.sr-u-n{margin:0;font-family:"IBM Plex Sans Condensed",system-ui,sans-serif;
 font-size:22px;font-weight:700;line-height:1.14}
.sr-u-o{margin:4px 0 0;font-size:14.5px;color:#33465c}
.sr-u-s{margin:7px 0 0;font-size:14.5px;font-weight:600}
.sr-u-s span{display:block;font-weight:400;font-size:13px;color:var(--quiet);
 margin-top:2px}

/* ---- participation / networking / venue ---- */
.sr-modes{list-style:none;margin:0;padding:0;display:grid;
 grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:0}
.sr-modes li{padding:24px 28px;background:var(--white);border:1px solid var(--rule)}
.sr-modes li+li{border-left:0}
.sr-modes h3{margin:0 0 8px;font-size:21px}
.sr-modes p{margin:0;color:#33465c}
.sr-wide{margin:0 0 30px}
.sr-wide img{width:100%;height:auto;aspect-ratio:21/8;object-fit:cover}
.sr-wide figcaption{margin-top:9px;font-size:12.5px;color:var(--quiet)}
.sr-s--ink .sr-wide figcaption{color:#9fb6cd}
.sr-venue{margin:0;display:grid;grid-template-columns:minmax(0,12rem) minmax(0,1fr);
 gap:0 28px;max-width:820px}
.sr-venue dt{font-size:13.5px;color:var(--quiet);padding:10px 0;
 border-top:1px solid var(--rule)}
.sr-venue dd{margin:0;padding:10px 0;border-top:1px solid var(--rule);font-weight:500}
.sr-pics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;
 margin:34px 0 0}
.sr-pics figure{margin:0}
.sr-pics img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.sr-pics figcaption{margin-top:8px;font-size:12.5px;color:var(--quiet)}

/* ---- questions ---- */
.sr-q{border-top:1px solid var(--rule);padding:4px 0}
.sr-q summary{font-family:"IBM Plex Sans Condensed",system-ui,sans-serif;
 font-weight:700;font-size:18.5px;padding:13px 0}
.sr-q p{margin:0 0 16px;max-width:68ch;color:#33465c}

/* ---- footer ---- */
.ft{background:var(--ink);color:#d3e0ee}
.ft-in{max-width:1260px;margin:0 auto;padding:48px 24px;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:#8ab6ff;font-weight:600;font-size:14.5px}
.ft-note,.ft-id,.ft-contact{font-size:13.5px;color:#b8cadd;margin:0;max-width:78ch}
.ft-contact a{color:var(--white)}
.ft-c{font-size:13px;color:#a6bad0;margin:10px 0 0}

@media (max-width:980px){
  .sr-l2-in{grid-template-columns:minmax(0,1fr);gap:28px;align-items:start}
  .sr-day-in{grid-template-columns:minmax(0,1fr)}
  .sr-units{grid-template-columns:minmax(0,1fr)}
  .sr-modes{grid-template-columns:minmax(0,1fr)}
  .sr-modes li+li{border-left:1px solid var(--rule);border-top:0}
}
@media (max-width:760px){
  .sr-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px;width:100%}
  .sr-hd-in{padding-bottom:4px}
  .sr-st{grid-template-columns:minmax(0,1fr);gap:4px}
  .sr-sig li{grid-template-columns:minmax(0,1fr);gap:4px}
  .sr-ex li{grid-template-columns:minmax(0,1fr);gap:2px}
  .sr-venue{grid-template-columns:minmax(0,1fr);gap:0}
  .sr-venue dt{padding-bottom:0}
  .sr-venue dd{padding-top:2px;border-top:0}
  .sr-pics{grid-template-columns:minmax(0,1fr)}
  .sr-wide img{aspect-ratio:3/2}
  .sr-shot img{aspect-ratio:16/9}
  .sr-acts{width:100%}
  .sr-a{flex:1;text-align:center}
  /* the relay bars survive on phones: they mark the joins between the stacked
     lanes instead of crossing them side by side. */
  .sr-bar--b{left:46%}
  .sr-bar--c{left:74%}
  .sr-s{padding:48px 0}
}
@media (prefers-reduced-motion:no-preference){
  .sr-bar{animation:sr-relay 1.5s ease-out 1 backwards}
  .sr-bar--b{animation-delay:.2s}
  .sr-bar--c{animation-delay:.4s}
  @keyframes sr-relay{0%{background:var(--sky)}30%{background:var(--signal)}
   100%{background:var(--coral)}}
}