:root{
  --bg:#0b1020;
  --surface:rgba(255,255,255,.04);
  --surface2:rgba(255,255,255,.06);
  --card:rgba(18,28,58,.62);
  --text:#e9ecf5;
  --muted:rgba(233,236,245,.78);
  --border:rgba(233,236,245,.14);
  --accent:#7dd3fc;
  --accent2:#a78bfa;
  --radius:16px;
  --shadow:0 12px 30px rgba(0,0,0,.22);
  --maxw:1120px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(125,211,252,.18), transparent 60%),
    radial-gradient(900px 500px at 80% 0%, rgba(167,139,250,.16), transparent 55%),
    var(--bg);
  color:var(--text);
  line-height:1.65;
}

a{color:inherit}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.container{
  width:min(var(--maxw), calc(100% - 2rem));
  margin:0 auto;
}

/* ===== Header / Nav (replaces HTML5UP) ===== */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(11,16,32,.76);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}

.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem; padding:.9rem 0;
}

.brand{display:flex; align-items:center; gap:.9rem; text-decoration:none; min-width:260px}
.brand img{width:42px; height:42px; object-fit:contain}
.brand-title{line-height:1.15}
.brand-title .name{font-weight:900; letter-spacing:.2px}
.brand-title .tag{font-size:.88rem; color:var(--muted); margin-top:.15rem}

.nav-toggle{
  display:none;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--text);
  padding:.55rem .75rem;
  border-radius:12px;
  cursor:pointer;
}

.site-nav ul{list-style:none; margin:0; padding:0}
.site-nav > ul{display:flex; gap:.2rem; align-items:center}
.site-nav a{
  display:inline-flex; align-items:center;
  padding:.55rem .75rem;
  border-radius:12px;
  text-decoration:none;
  color:var(--text);
  font-weight:700;
  font-size:.95rem;
}
.site-nav a:hover{background:rgba(255,255,255,.07); text-decoration:none}

/* Dropdown */
.site-nav li{position:relative}
.site-nav li > ul{
  position:absolute;
  top:calc(100% + .45rem);
  left:0;
  min-width:270px;
  background:rgba(18,28,58,.98);
  border:1px solid var(--border);
  border-radius:14px;
  box-shadow:var(--shadow);
  padding:.45rem;
  display:none;
}
.site-nav li:hover > ul{display:block}
.site-nav li.is-open > ul{display:block}
.site-nav li > ul a{width:100%; justify-content:flex-start; padding:.6rem .7rem}
.site-nav li > ul a:hover{background:rgba(255,255,255,.08)}
.site-nav li > ul li > ul{top:.15rem; left:calc(100% + .45rem)}

/* Mobile */
@media (max-width: 980px){
  .nav-toggle{display:inline-flex}
  .site-nav{display:none; width:100%}
  .site-nav[data-open="true"]{display:block}
  .header-inner{flex-wrap:wrap}
  .site-nav > ul{flex-direction:column; align-items:stretch; padding:0 0 1rem}
  .site-nav li > ul{
    position:static;
    display:block;
    background:transparent;
    border:none;
    box-shadow:none;
    padding:0 0 0 .8rem;
  }
}

/* ===== Legacy HTML5UP wrappers mapped to new design ===== */
#page-wrapper{padding:0 0 2rem}
section.wrapper{padding:1.6rem 0}
section.wrapper.style2{
  padding:1.6rem 0 2.2rem;
}
section.wrapper.style2 .container{
  background:rgba(18,28,58,.55);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:1.2rem;
}

.title{
  width:min(var(--maxw), calc(100% - 2rem));
  margin:1.4rem auto .9rem;
  font-weight:900;
  font-size:1.55rem;
  letter-spacing:.2px;
}

/* ===== Cards / grids ===== */
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card-body{padding:1rem}
.card-title{margin:0 0 .35rem; font-weight:900}
.muted{color:var(--muted)}

.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:1rem}
@media (max-width:980px){.grid-3{grid-template-columns:1fr}}

/* ===== Buttons ===== */
.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.65rem .9rem;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--text);
  text-decoration:none;
  font-weight:800;
}
.btn:hover{background:rgba(255,255,255,.10); text-decoration:none}
.btn.primary{
  border-color:rgba(125,211,252,.45);
  background:linear-gradient(135deg, rgba(125,211,252,.18), rgba(167,139,250,.16));
}

/* ===== People ===== */
.category{margin:1.2rem 0 1.6rem}
.category > h2{
  margin:.2rem 0 .6rem;
  font-size:1.25rem;
  font-weight:900;
}
.persons{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:14px;
}
.person{
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  border-radius:14px;
  padding:14px;
  text-align:center;
}
.person img{
  width:110px;
  height:110px;
  object-fit:cover;
  border-radius:999px;
  margin:0 auto 10px;
}
.person p{margin:0; color:var(--text)}
.person p strong{display:block; font-size:1.02rem}
.person a{display:inline-flex; margin-top:.35rem}

/* ===== Prose / long text ===== */
.prose p{color:var(--muted)}
.prose{color:var(--muted)}
.prose{white-space:pre-line}

/* ===== Tables ===== */
table{
  width:100%;
  border-collapse:collapse;
  border:1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  background:rgba(255,255,255,.03);
}
th,td{padding:.7rem .8rem; border-bottom:1px solid var(--border); vertical-align:top}
th{background:rgba(255,255,255,.06); text-align:left}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid var(--border);
  padding:1.4rem 0;
  color:var(--muted);
  font-size:.95rem;
}
.footer-inner{display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap}

/* ===== Keynotes ===== */
.keynote{margin-bottom:1rem}
.keynote-grid{display:grid; grid-template-columns:140px 1fr; gap:1rem; align-items:start}
@media (max-width:720px){.keynote-grid{grid-template-columns:1fr}}
.keynote-photo{border-radius:14px; border:1px solid var(--border)}
.keynote-name{font-weight:900; font-size:1.25rem}
.section-label{font-weight:900; margin-top:.75rem}

/* ===== Homepage improvements ===== */

.photo-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 980px){
  .photo-grid{ grid-template-columns: 1fr; }
}

.photo-frame{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
  min-height: 280px;
  display:flex;
  align-items:center;
  justify-content:center;
}

.photo-img{
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: cover;
}

.fade-in{ animation: fadeIn .35s ease-in; }
@keyframes fadeIn { from{opacity:.2} to{opacity:1} }

/* Ticker */
.ticker{
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  overflow: hidden;
}
.ticker-track{
  white-space: nowrap;
  padding: .65rem 0;
  display: inline-block;
  animation: tickerMove 28s linear infinite;
}
.ticker:hover .ticker-track{ animation-play-state: paused; }
.ticker a{ color: #ff4d4d !important; font-weight: 700; text-decoration: none; }
@keyframes tickerMove { from{ transform: translateX(100%);} to{ transform: translateX(-100%);} }

/* 3 home boxes */
.home-box-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 980px){
  .home-box-grid{ grid-template-columns: 1fr; }
}
.home-box{
  background: rgba(18, 28, 58, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.home-box h2{
  margin:0;
  padding: .9rem 1rem;
  font-size: 1.05rem;
  border-bottom: 1px solid var(--border);
}
.home-box-body{
  padding: .9rem 1rem 1rem;
  color: var(--muted);
}
.home-box-body ul{ margin:0; padding-left: 1.1rem; }
.home-box-body li{ margin: .45rem 0; }
.home-box-body a{ color: var(--accent); }

/* Video */
.video-frame{
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow:hidden;
  background: rgba(0,0,0,0.25);
}
.video-frame iframe{
  width: 100%;
  height: 260px;
  border: 0;
}
@media (max-width: 980px){
  .video-frame iframe{ height: 220px; }
}

/* Keynote grid */
.speaker-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
@media (max-width: 1100px){ .speaker-grid{ grid-template-columns: repeat(3, 1fr);} }
@media (max-width: 980px){ .speaker-grid{ grid-template-columns: repeat(2, 1fr);} }
@media (max-width: 560px){ .speaker-grid{ grid-template-columns: 1fr;} }

/* Sponsors */
.sep{
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.1rem 0;
}
.sponsor-grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: start;
}
@media (max-width: 980px){ .sponsor-grid{ grid-template-columns: 1fr; } }

.sponsor-item{
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align:center;
  box-shadow: var(--shadow);
}
.sponsor-logo{
  width: 100%;
  max-height: 120px;
  object-fit: contain;
  margin: 0 auto .6rem;
}
.caption{ margin:0; color: var(--muted); font-weight: 600; }

/* Contact bar */
.contact-bar{
  position: sticky;
  bottom: 0;
  border-top: 1px solid var(--border);
  background: rgba(11,16,32,0.85);
  backdrop-filter: blur(10px);
  padding: .65rem 0;
  z-index: 45;
}
.contact-inner{
  display:flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--muted);
}
.contact-inner a{ color: #ffdd57 !important; font-weight: 700; text-decoration: none; }

/* ===========================
   Live tickers (Announcements + Important)
=========================== */

.live-ticker{
  display:flex;
  align-items:center;
  gap:.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  padding: .5rem .75rem;
  margin: 0.75rem auto;
  max-width: 1200px;
  overflow:hidden;
  box-shadow: var(--shadow);
}

.live-ticker__label{
  font-weight: 800;
  letter-spacing: .02em;
  font-size: .85rem;
  padding: .25rem .55rem;
  border-radius: 999px;
  flex: 0 0 auto;
  border: 1px solid rgba(255,255,255,0.12);
}

.live-ticker__viewport{
  overflow:hidden;
  flex: 1 1 auto;
}

.live-ticker__track{
  white-space: nowrap;
  display:inline-block;
  animation: tickerMove 30s linear infinite;
}

.live-ticker:hover .live-ticker__track{
  animation-play-state: paused;
}

.live-ticker__item{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  margin-right: .75rem;
}

.live-ticker__tag{
  font-size: .72rem;
  font-weight: 800;
  padding: .18rem .45rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
}

.live-ticker__sep{
  opacity:.5;
  margin-left:.35rem;
}

.live-ticker a{
  text-decoration:none;
  font-weight: 700;
}

.live-ticker a:hover{
  text-decoration: underline;
}

/* Tones */
.live-ticker.red .live-ticker__label{
  background: rgba(255, 77, 77, 0.12);
  color: #ff4d4d;
  border-color: rgba(255, 77, 77, 0.25);
}
.live-ticker.red a{ color: #ff4d4d !important; }

.live-ticker.blue .live-ticker__label{
  background: rgba(100, 176, 255, 0.12);
  color: #64b0ff;
  border-color: rgba(100, 176, 255, 0.25);
}
.live-ticker.blue a{ color: #64b0ff !important; }

/* animation shared */
@keyframes tickerMove {
  from { transform: translateX(100%); }
  to   { transform: translateX(-100%); }
}

/* ===========================
   Stable Important Bar
=========================== */
.important-bar{
  max-width: 1200px;
  margin: .75rem auto 1.25rem;
  padding: .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
  display:flex;
  gap:.75rem;
  align-items:flex-start;
}

.important-bar__label{
  flex:0 0 auto;
  font-weight: 900;
  font-size: .85rem;
  padding: .25rem .6rem;
  border-radius: 999px;
  background: rgba(100,176,255,0.12);
  color: #64b0ff;
  border: 1px solid rgba(100,176,255,0.25);
  margin-top: .15rem;
}

.important-bar__items{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
}

.important-pill{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding: .55rem .7rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.03);
  text-decoration:none;
  color: var(--text);
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}

.important-pill:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,0.06);
  border-color: rgba(100,176,255,0.35);
}

.important-pill__tag{
  font-size: .72rem;
  font-weight: 900;
  padding: .18rem .45rem;
  border-radius: 999px;
  background: rgba(100,176,255,0.12);
  color: #64b0ff;
  border: 1px solid rgba(100,176,255,0.22);
}

.important-pill__text{
  font-weight: 700;
  font-size: .92rem;
  color: #cfe6ff;
}

@media (max-width: 640px){
  .important-bar{ flex-direction:column; }
}

/* ===== Home Layout ===== */
.home-hero { padding: 1.25rem 0 0; }
.home-hero__grid{
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display:grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}
@media (max-width: 980px){ .home-hero__grid{ grid-template-columns: 1fr; } }

.card{
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.card__title{ margin:0 0 .6rem; font-size: 1.05rem; font-weight: 900; }
.section-title{ margin:0 0 .75rem; font-size: 1.35rem; font-weight: 900; }
.section-title.center{ text-align:center; }
.muted{ color: var(--muted); }

.home-hero__banner{
  width:100%;
  height:auto;
  border-radius: calc(var(--radius) - 4px);
  display:block;
  margin-bottom: .85rem;
}
.home-hero__title{ margin:.25rem 0 .5rem; font-size: 2rem; }
.home-hero__lead{ color: var(--muted); line-height: 1.65; margin: .55rem 0; }

.home-hero__cta{ display:flex; flex-wrap:wrap; gap:.6rem; margin-top: .9rem; }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: .6rem .9rem;
  border-radius: 12px;
  text-decoration:none;
  font-weight: 800;
  border: 1px solid rgba(255,255,255,0.12);
}
.btn-primary{
  background: rgba(100,176,255,0.18);
  border-color: rgba(100,176,255,0.35);
  color: #cfe6ff;
}
.btn-ghost{
  background: rgba(255,255,255,0.04);
  color: var(--text);
}
.btn-block{ width:100%; }

.quick-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
}
.quick-item{
  padding:.7rem .75rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.03);
  text-decoration:none;
  color: var(--text);
  font-weight: 800;
}
.quick-item:hover{
  background: rgba(255,255,255,0.06);
}

.home-updates{ padding: .75rem 0; }

.home-venue{ padding: .75rem 0 1.25rem; }
.home-venue__grid{
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 1rem;
}
@media (max-width: 980px){ .home-venue__grid{ grid-template-columns: 1fr; } }

.venue-slides{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}
@media (max-width: 640px){ .venue-slides{ grid-template-columns: 1fr; } }

.venue-slide{
  border-radius: 14px;
  overflow:hidden;
  min-height: 240px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.10);
}

.video-frame{
  border-radius: 14px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,0.10);
}
.video-embed{ width:100%; height:315px; border:0; display:block; }
@media (max-width: 640px){ .video-embed{ height: 240px; } }

.home-keynotes{ padding: 1.25rem 0 1.5rem; }

.people-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
@media (max-width: 1100px){ .people-grid{ grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 820px){ .people-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px){ .people-grid{ grid-template-columns: 1fr; } }

.person-card{
  display:block;
  border-radius: 16px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.03);
  text-decoration:none;
  color: var(--text);
}
.person-card img{
  width:100%;
  height: 210px;
  object-fit: cover;
  display:block;
}
.person-card__meta{ padding: .75rem .85rem; }
.person-card__name{ font-weight: 900; }
.person-card__role, .person-card__org{ color: var(--muted); font-size: .92rem; margin-top:.2rem; }
.person-card:hover{ background: rgba(255,255,255,0.06); }

/* ===== Homepage Layout Wrapper ===== */
.home-hero { padding: 1.25rem 0 .5rem; }
.home-section { padding: 1rem 0; }
.home-updates { padding: .5rem 0 1rem; }

.container{ max-width: 1200px; margin:0 auto; padding:0 16px; }

.card{
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.section-title{ margin:0 0 .85rem; font-size: 1.35rem; font-weight: 900; }
.section-title.center{ text-align:center; }

.home-hero__grid{
  display:grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}
@media (max-width: 980px){ .home-hero__grid{ grid-template-columns: 1fr; } }

.home-hero__banner{
  width:100%;
  height:auto;
  border-radius: calc(var(--radius) - 4px);
  display:block;
  margin-bottom: .85rem;
}
.home-hero__cta{ display:flex; flex-wrap:wrap; gap:.6rem; margin-top: .75rem; }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: .6rem .9rem;
  border-radius: 12px;
  text-decoration:none;
  font-weight: 800;
  border: 1px solid rgba(255,255,255,0.12);
}
.btn-primary{
  background: rgba(100,176,255,0.18);
  border-color: rgba(100,176,255,0.35);
  color: #cfe6ff;
}
.btn-ghost{
  background: rgba(255,255,255,0.03);
  color: var(--text);
}

/* Quick Links */
.card__title{ margin:0 0 .6rem; font-size: 1.05rem; font-weight: 900; }
.quick-grid{ display:grid; grid-template-columns: 1fr; gap:.6rem; }
.quick-item{
  padding:.75rem .85rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.03);
  text-decoration:none;
  color: var(--text);
  font-weight: 800;
}
.quick-item:hover{ background: rgba(255,255,255,0.06); }

/* Venue slides */
.venue-slides{ display:grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
@media (max-width: 640px){ .venue-slides{ grid-template-columns: 1fr; } }
.venue-slide{
  border-radius: 14px;
  overflow:hidden;
  min-height: 240px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.10);
}

/* Keynotes grid */
.people-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
@media (max-width: 1100px){ .people-grid{ grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 820px){ .people-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px){ .people-grid{ grid-template-columns: 1fr; } }

.person-card{
  display:block;
  border-radius: 16px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.03);
  text-decoration:none;
  color: var(--text);
}
.person-card img{ width:100%; height: 210px; object-fit: cover; display:block; }
.person-card__meta{ padding: .75rem .85rem; }
.person-card__name{ font-weight: 900; }
.person-card__role, .person-card__org{ color: var(--muted); font-size: .92rem; margin-top:.2rem; }
.person-card:hover{ background: rgba(255,255,255,0.06); }


/* Hover bridges: prevent dropdown from collapsing when cursor crosses the visual gap */
.site-nav li > ul::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-.55rem;
  height:.55rem;
}
.site-nav li > ul li > ul::before{
  content:"";
  position:absolute;
  top:0;
  bottom:0;
  left:-.55rem;
  width:.55rem;
}

/* Submenu caret */
.site-nav a.has-children::after{content:"▾"; font-size:.8em; margin-left:.35rem; opacity:.75}
.site-nav li > ul a.has-children::after{content:"▸"; margin-left:auto;}

.footer-inner{display:flex; justify-content:space-between; gap:1rem; align-items:center; flex-wrap:wrap}
.footer-right{display:flex; flex-direction:column; gap:.35rem; align-items:flex-end}
.footer-social{display:flex; gap:.6rem; flex-wrap:wrap}
.footer-social a{text-decoration:none; opacity:.9}
.footer-social a:hover{text-decoration:underline; opacity:1}
@media (max-width: 640px){.footer-right{align-items:flex-start}}