/* ============================================================
   INNOVAC 2027 — design system
   Palette derived from the conference logo:
   orange #F58220 · blue #1B9CD8 · green #6EBE44
   ============================================================ */

:root{
  /* brand */
  --brand:#0b6fa4;          /* deep logo blue */
  --brand-600:#0a5f8d;
  --brand-050:#e8f4fb;
  --accent:#f58220;         /* logo orange */
  --accent-600:#dd6f13;
  --accent-050:#fff3e6;
  --green:#6ebe44;

  /* neutrals */
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#64748b;
  --line:#e2e8f0;
  --line-2:#eef2f7;
  --bg:#ffffff;
  --bg-alt:#f7f9fc;
  --card:#ffffff;

  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --shadow:0 2px 10px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow-lg:0 18px 40px -18px rgba(11,111,164,.35);

  --r-sm:10px;
  --r:14px;
  --r-lg:20px;
  --r-full:999px;

  --nav-h:68px;
  --maxw:1160px;

  --ff:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --ff-display:"Plus Jakarta Sans","Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.6;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-family:var(--ff-display);color:var(--ink);letter-spacing:-.02em;line-height:1.2;margin:0}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
img{max-width:100%;height:auto}
ul{margin:0 0 1em;padding-left:1.15em}
li{margin:.28em 0}

a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{max-width:var(--maxw);margin:0 auto;padding:0 20px;width:100%}
[id]{scroll-margin-top:calc(var(--nav-h) + 16px)}

.small{font-size:.8125rem;line-height:1.55}
.muted{color:var(--muted)}
.center{text-align:center}
.mt-0{margin-top:0}
.stack>*+*{margin-top:10px}

/* ============================ nav ============================ */
.nav{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav .inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:var(--nav-h);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-logo{height:44px;width:auto;display:block}
.brand-text{display:none;line-height:1.15}
.brand-text b{font-family:var(--ff-display);font-size:.95rem;color:var(--ink);display:block;letter-spacing:-.01em}
.brand-text span{font-size:.7rem;color:var(--muted)}
@media(min-width:520px){.brand-text{display:block}}

.nav .links{display:flex;align-items:center;gap:2px}
.nav .links a{
  padding:8px 11px;border-radius:var(--r-full);
  font-size:.875rem;font-weight:500;color:var(--ink-2);
  white-space:nowrap;transition:background .15s,color .15s;
}
.nav .links a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none}
.nav .links a.is-active{background:var(--brand-050);color:var(--brand);font-weight:600}
.nav .links a.btn{color:#fff}
.nav .links a.btn:hover{color:#fff}
/* outline buttons in the nav keep dark text — without this the white-on-white
   default above makes the label invisible */
.nav .links a.btn.outline{color:var(--ink);background:#fff}
.nav .links a.btn.outline:hover{color:var(--ink);background:var(--bg-alt)}

.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;padding:0;
}
.nav-toggle span{position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px;display:block;transition:.2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

@media(max-width:1023px){
  .nav .links{
    position:fixed;inset:var(--nav-h) 0 auto 0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 20px 18px;
    box-shadow:var(--shadow);
    max-height:calc(100dvh - var(--nav-h));overflow:auto;
    display:none;
  }
  .nav .links.open{display:flex}
  .nav .links a{padding:11px 12px;border-radius:10px;font-size:.95rem}
  .nav .links a.btn{justify-content:center;margin-top:6px}
}
@media(min-width:1024px){ .nav-toggle{display:none} }

/* ============================ buttons ============================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--r-full);padding:11px 20px;
  font-size:.9rem;font-weight:600;cursor:pointer;
  box-shadow:var(--shadow-sm);transition:transform .15s,background .15s,box-shadow .15s;
  text-decoration:none;
}
.btn:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn.accent{background:var(--accent);border-color:var(--accent)}
.btn.accent:hover{background:var(--accent-600);border-color:var(--accent-600)}
.btn.outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.outline:hover{background:var(--bg-alt);color:var(--ink);border-color:#cbd5e1}
.btn.ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);color:#fff}
.btn.ghost-light:hover{background:rgba(255,255,255,.22);color:#fff}
.btn-sm{padding:7px 14px;font-size:.8125rem}

/* ============================ badges / chips ============================ */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--r-full);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:.75rem;font-weight:600;letter-spacing:.03em;text-transform:uppercase;
}
.badge.on-dark{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#fff}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(110,190,68,.25)}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:var(--r-full);
  background:var(--brand-050);color:var(--brand-600);font-size:.75rem;font-weight:600;
}
.chip.accent{background:var(--accent-050);color:var(--accent-600)}

/* ============================ hero ============================ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(245,130,32,.45), transparent 60%),
    radial-gradient(760px 460px at 88% 10%, rgba(110,190,68,.32), transparent 62%),
    linear-gradient(150deg,#062e46 0%,#0b6fa4 55%,#0d84c0 100%);
  padding:64px 0 72px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size:26px 26px;opacity:.5;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 75%);
  mask-image:linear-gradient(180deg,#000,transparent 75%);
}
.hero .container{position:relative;z-index:1}
.hero h1{
  font-size:clamp(1.75rem,3.6vw + .6rem,3rem);
  color:#fff;margin:18px 0 14px;max-width:22ch;text-wrap:balance;
}
.hero .lede{color:rgba(255,255,255,.9);font-size:1.02rem;max-width:62ch;margin:0 0 22px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0 0 26px;padding:0;list-style:none}
.hero-meta li{display:flex;align-items:center;gap:9px;color:rgba(255,255,255,.94);font-size:.9rem;font-weight:500}
.hero-meta .ico{
  width:30px;height:30px;flex:none;border-radius:9px;
  background:rgba(255,255,255,.16);display:grid;place-items:center;font-size:.95rem
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:0}

/* countdown */
.countdown{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;
  margin:34px 0 0;max-width:520px;
}
.counter{
  background:rgba(255,255,255,.13);
  border:1px solid rgba(255,255,255,.26);
  border-radius:var(--r);padding:12px 8px;text-align:center;
  backdrop-filter:blur(6px);
}
.counter .val{display:block;font-family:var(--ff-display);font-size:1.55rem;font-weight:800;color:#fff;line-height:1.1;font-variant-numeric:tabular-nums}
.counter .lbl{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;color:rgba(255,255,255,.78);margin-top:3px}
.countdown-note{color:rgba(255,255,255,.75);font-size:.78rem;margin:10px 0 0}

/* ============================ stat strip ============================ */
.statstrip{border-bottom:1px solid var(--line);background:var(--bg-alt)}
.statstrip .row{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border-left:1px solid var(--line);border-right:1px solid var(--line);
}
@media(min-width:760px){.statstrip .row{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--bg-alt);padding:20px 16px;text-align:center}
.stat b{display:block;font-family:var(--ff-display);font-size:1.5rem;color:var(--brand);letter-spacing:-.02em}
.stat span{display:block;font-size:.78rem;color:var(--muted);margin-top:3px}

/* ============================ sections ============================ */
.section{padding:64px 0}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:70ch;margin:0 0 30px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent-600);margin:0 0 8px
}
.section h2{font-size:clamp(1.4rem,1.4vw + 1rem,2rem);margin:0 0 10px;text-wrap:balance}
.section-head p{color:var(--muted);margin:0;font-size:.98rem}

/* ============================ cards & grids ============================ */
.grid{display:grid;gap:18px}
.cards2{grid-template-columns:1fr}
.cards3{grid-template-columns:1fr}
.cards4{grid-template-columns:1fr}
@media(min-width:640px){
  .cards2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cards3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cards4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(min-width:980px){
  .cards3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cards4{grid-template-columns:repeat(4,minmax(0,1fr))}
}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-sm);
}
.card h3{font-size:1.05rem;margin:0 0 8px}
.card p{color:var(--ink-2);font-size:.9rem}
.card .small{color:var(--muted)}
.card-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand);font-size:.72rem;font-weight:800;
  letter-spacing:.03em;margin-bottom:12px;
}
.card-icon.accent{background:var(--accent-050);color:var(--accent-600)}
.card.hoverable{transition:transform .18s,box-shadow .18s,border-color .18s}
.card.hoverable:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cbd5e1}
.card.feature{border-top:3px solid var(--brand)}
.card.feature.accent{border-top-color:var(--accent)}
.card.feature.green{border-top-color:var(--green)}

/* organisers banner */
.org-banner{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,#fff,var(--bg-alt));
  padding:22px;display:grid;gap:18px;align-items:center;
}
@media(min-width:820px){.org-banner{grid-template-columns:minmax(0,1fr) auto;padding:24px 28px}}
.org-banner .label{font-family:var(--ff-display);font-weight:700;font-size:.95rem;margin:0 0 6px}
.org-logos{display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:flex-start}
.org-logos img{height:52px;max-width:190px;object-fit:contain}
@media(min-width:820px){.org-logos{justify-content:flex-end}}

/* ============================ keynotes ============================ */
.keynote-card{display:flex;flex-direction:column;text-align:center;padding:22px 18px}
.keynote-photo{
  width:92px;height:92px;border-radius:var(--r-full);object-fit:cover;
  border:3px solid #fff;box-shadow:0 0 0 2px var(--brand-050);
  margin:0 auto 14px;background:var(--bg-alt);
}
.keynote-card h3{font-size:1rem;margin:8px 0 3px}
.keynote-card .affiliation{font-size:.8125rem;color:var(--brand);font-weight:600;margin:0 0 8px}
.keynote-card .brief{font-size:.8125rem;color:var(--muted);margin:0;line-height:1.5}

/* ============================ timeline (key dates) ============================ */
.timeline{position:relative;margin:0;padding:0;list-style:none}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent));border-radius:2px;
}
.timeline li{position:relative;padding:0 0 22px 46px}
.timeline li:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:6px;top:4px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
}
.timeline li.is-past .tl-dot{background:var(--brand);border-color:var(--brand)}
.timeline li.is-next .tl-dot{border-color:var(--accent);box-shadow:0 0 0 5px rgba(245,130,32,.18)}
.tl-date{
  display:inline-block;font-family:var(--ff-display);font-weight:700;font-size:.82rem;
  color:var(--brand-600);background:var(--brand-050);border-radius:var(--r-full);
  padding:3px 11px;margin-bottom:5px;
}
.timeline li.is-next .tl-date{color:var(--accent-600);background:var(--accent-050)}
.tl-title{display:block;font-family:var(--ff-display);font-weight:700;font-size:1rem;margin-bottom:2px}
.tl-note{display:block;font-size:.83rem;color:var(--muted)}
.tl-flag{
  display:inline-block;margin-left:8px;font-size:.66rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:#fff;background:var(--accent);border-radius:var(--r-full);padding:2px 9px;vertical-align:middle
}
.dates-layout{display:grid;gap:24px}
@media(min-width:940px){
  .dates-layout{
    grid-template-columns:minmax(0,1.12fr) minmax(0,1fr);
    gap:clamp(30px,3.5vw,48px);align-items:start
  }
}
.dates-aside{
  width:100%;justify-self:stretch;
  border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;
  background:linear-gradient(180deg,var(--brand-050),#fff);
}
.dates-aside h3{font-size:1rem;margin:0 0 10px}

/* ============================ programme ============================ */
.prog-day{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.prog-day h3{
  margin:0;padding:15px 20px;font-size:.98rem;color:#fff;
  background:linear-gradient(90deg,var(--brand),#0d84c0);
}
.prog-day table{width:100%;border-collapse:collapse}
.prog-day td{padding:11px 20px;border-top:1px solid var(--line-2);font-size:.88rem;vertical-align:top}
.prog-day td:first-child{
  white-space:nowrap;font-weight:700;color:var(--brand-600);width:1%;
  font-variant-numeric:tabular-nums;font-size:.83rem
}
.prog-day tr:first-child td{border-top:none}

/* ============================ tables ============================ */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}
.table{width:100%;border-collapse:collapse;min-width:600px}
.table th,.table td{padding:12px 14px;text-align:left;font-size:.875rem;border-bottom:1px solid var(--line-2)}
.table thead th{
  background:var(--bg-alt);font-family:var(--ff-display);font-weight:700;font-size:.8rem;
  color:var(--ink);border-bottom:1px solid var(--line);white-space:nowrap
}
.table tbody tr:last-child td{border-bottom:none}
.table tbody tr:hover{background:var(--brand-050)}
.table .cat{font-weight:600}
.tier-on{color:var(--accent-600);font-weight:700}

/* key/value */
.kv{display:grid;grid-template-columns:130px 1fr;gap:9px 14px;font-size:.875rem}
.kv>div:nth-child(odd){color:var(--muted)}

/* ============================ forms ============================ */
label{display:block;font-size:.8125rem;font-weight:600;color:var(--ink-2);margin:0 0 5px}
input,select,textarea{
  width:100%;padding:11px 13px;font:inherit;font-size:.9rem;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;color:var(--ink);
  transition:border-color .15s,box-shadow .15s;
}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,111,164,.14)
}
.field{margin:0}
.upload{border:1.5px dashed #cbd5e1;border-radius:var(--r);padding:14px;background:var(--bg-alt)}
.upload input[type=file]{border:none;padding:8px 0;background:transparent}
.payable-box{
  border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;
  background:linear-gradient(180deg,var(--accent-050),#fff);
}
.payable-box .amt{font-family:var(--ff-display);font-size:1.6rem;font-weight:800;color:var(--accent-600);line-height:1.2}

/* ============================ notices ============================ */
.notice{border:1px solid var(--line);border-left:4px solid var(--brand);background:var(--brand-050);
  border-radius:var(--r);padding:14px 16px;font-size:.875rem;color:var(--ink-2)}
.notice.warn{border-left-color:var(--accent);background:var(--accent-050)}
.notice.ok{border-left-color:var(--green);background:#f1fae9}
.notice.err{border-left-color:#dc2626;background:#fef2f2}
.notice strong{color:var(--ink)}

.submission-cards .card{display:flex;flex-direction:column}
.submission-cards .card-actions{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:14px 0 0
}
.submission-cards .card-actions,.submission-cards .card-footer{margin-top:auto}
.submission-cards .card-footer{margin-bottom:0}
.cmt-acknowledgement{
  margin-top:18px;display:grid;grid-template-columns:minmax(180px,230px) 1fr;
  align-items:start;gap:14px 22px;padding:13px 16px
}
.cmt-acknowledgement p{margin:0;font-size:.84rem;line-height:1.55}
@media(max-width:639px){
  .cmt-acknowledgement{grid-template-columns:1fr;gap:6px}
}

/* ============================ FAQ ============================ */
.faq{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.faq details{border-top:1px solid var(--line-2)}
.faq details:first-child{border-top:none}
.faq summary{
  list-style:none;cursor:pointer;padding:16px 46px 16px 20px;position:relative;
  font-family:var(--ff-display);font-weight:600;font-size:.95rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--bg-alt)}
.faq summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:1.3rem;font-weight:400;color:var(--brand);line-height:1
}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{color:var(--brand)}
.faq .answer{padding:0 20px 18px;color:var(--ink-2);font-size:.9rem}

/* ============================ venue ============================ */
.venue-grid{display:grid;gap:20px}
@media(min-width:900px){.venue-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.map-embed{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--bg-alt);min-height:300px;box-shadow:var(--shadow-sm)
}
.map-embed iframe{display:block;width:100%;height:100%;min-height:340px;border:0}

/* ============================ committee ============================ */
.committee-toolbar{
  display:flex;gap:12px;flex-wrap:wrap;align-items:center;
  margin:0 0 20px;
}
.committee-toolbar input{max-width:340px}
.committee-list{
  columns:1;column-gap:34px;list-style:none;padding:0;margin:0;font-size:.875rem
}
@media(min-width:700px){.committee-list{columns:2}}
@media(min-width:1050px){.committee-list{columns:3}}
.committee-list li{
  break-inside:avoid;padding:7px 0 7px 16px;position:relative;color:var(--ink-2);
  border-bottom:1px solid var(--line-2)
}
.committee-list li::before{
  content:"";position:absolute;left:0;top:15px;width:6px;height:6px;border-radius:50%;background:var(--accent)
}
.committee-list li[hidden]{display:none}
.count-pill{
  font-size:.75rem;font-weight:700;color:var(--brand-600);
  background:var(--brand-050);border-radius:var(--r-full);padding:3px 10px
}
.role-card{border-left:3px solid var(--accent)}
.role-card h3{font-size:.92rem;color:var(--accent-600);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px}
.role-card ul{padding-left:16px;margin:0;font-size:.86rem;color:var(--ink-2)}

/* ============================ CTA band ============================ */
.cta-band{
  color:#fff;text-align:center;padding:56px 0;
  background:linear-gradient(135deg,#062e46,#0b6fa4 60%,#0d84c0);
}
.cta-band h2{color:#fff;font-size:clamp(1.35rem,1.6vw + 1rem,1.9rem);margin:0 0 10px}
.cta-band p{color:rgba(255,255,255,.86);max-width:58ch;margin:0 auto 22px}
.cta-band .hero-actions{justify-content:center}

/* ============================ footer ============================ */
.footer{background:#0a1626;color:#94a3b8;padding:48px 0 26px;font-size:.875rem}
.footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;margin:0 0 12px}
.footer a{color:#cbd5e1}
.footer a:hover{color:#fff}
.footer-grid{display:grid;gap:28px}
@media(min-width:760px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr}}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin:.4em 0}
.footer-logo{height:56px;background:#fff;border-radius:12px;padding:6px;margin-bottom:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:18px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.8rem
}

/* back to top */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:150;
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--brand);box-shadow:var(--shadow);cursor:pointer;
  display:grid;place-items:center;font-size:1.05rem;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}

/* print */
@media print{
  .nav,.to-top,.cta-band,.hero-actions{display:none!important}
  .hero{background:#fff;color:#000;padding:20px 0}
  .hero h1,.hero .lede,.hero-meta li{color:#000}
  .card,.section{break-inside:avoid}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* ============================================================
   Legacy compatibility — classes used by /admin pages and any
   older markup, restyled to match the 2027 design system.
   ============================================================ */
.tabbar{display:flex;gap:8px;margin:0 0 18px;flex-wrap:wrap}
.tabbar a{
  padding:8px 14px;border:1px solid var(--line);border-radius:var(--r-full);
  font-size:.85rem;font-weight:600;color:var(--ink-2);background:#fff
}
.tabbar a:hover{background:var(--bg-alt);text-decoration:none}
.tabbar a.active{background:var(--brand);border-color:var(--brand);color:#fff}

.list-card{padding:22px}
.section-tag{margin:6px 0 10px;letter-spacing:.02em;text-transform:uppercase;font-size:.72rem;color:var(--accent-600);font-weight:700}
.full-bleed{width:100%}
.sponsor-logos{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin:8px 0 12px}
.sponsor-logos img{height:44px;max-width:180px;object-fit:contain}
.venue-highlight{
  display:flex;align-items:flex-start;gap:10px;padding:14px 16px;
  border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--r);background:var(--brand-050);margin:16px 0 0;font-size:.9rem
}
.org-sponsor-banner{width:100%;margin:12px 0 18px}
.org-sponsor-banner .org-block{
  max-width:var(--maxw);margin:0 auto;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px;background:#fff;box-shadow:var(--shadow-sm)
}
.org-block .label{font-family:var(--ff-display);font-weight:700;margin-bottom:8px}
.org-block .logos{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin:6px 0 10px}
.org-block .logos img{height:46px;max-width:190px;object-fit:contain}
.keynote-photo-wrap{display:flex;justify-content:center;margin-bottom:10px}
.keynote-meta{text-align:center}
.keynote-badge{
  display:inline-block;font-size:.72rem;font-weight:600;padding:4px 10px;border-radius:var(--r-full);
  background:var(--accent-050);color:var(--accent-600);margin-bottom:6px
}
.tracks-grid .card h3{font-size:1rem}
.qrwrap{display:flex;flex-direction:column;gap:8px}
.qrimg{max-width:280px;border:1px solid var(--line);border-radius:var(--r);padding:8px;background:#fff}
.linkbox{word-break:break-all}

/* Organiser logos with a role caption (host / lead sponsor / co-organiser) */
.org-logos .org-logo{
  margin:0;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;
}
.org-logos .org-logo img{height:56px;max-width:210px;object-fit:contain;display:block}
.org-logos .org-logo figcaption{
  font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);max-width:20ch;line-height:1.3;
}