/* ADSD 2027 — shared styles (index.html + sponsorship.html) */
:root{
  --bg:#050d20;
  --bg2:#0a1734;
  --bg3:#16295a;
  --card:#0d1d42;
  --line:rgba(150,180,255,.16);
  --gold:#8fb3ff;
  --gold2:#ffffff;
  --cyan:#b9d0ff;
  --brand:#1f4080;
  --text:#e8edf7;
  --muted:#93a1bd;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{background:var(--bg);color:var(--text);font-family:'Inter',sans-serif;line-height:1.6;overflow-x:hidden}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;line-height:1.15}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:96px 0;position:relative}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin-bottom:14px;font-weight:600}
.sec-title{font-size:clamp(1.8rem,3.6vw,2.7rem);font-weight:700;margin-bottom:18px}
.sec-sub{color:var(--muted);max-width:720px;font-size:1.05rem;margin-bottom:48px}
.center{text-align:center}
.center .sec-sub{margin-left:auto;margin-right:auto}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s;padding:0;background:var(--brand);border-bottom:1px solid rgba(255,255,255,.12)}
nav.scrolled{background:rgba(31,64,128,.95);backdrop-filter:blur(14px);box-shadow:0 6px 24px rgba(0,0,0,.35)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:112px;transition:min-height .3s}
nav.scrolled .nav-inner{min-height:84px}
.nav-logo img{height:112px;width:auto;transition:height .3s}
nav.scrolled .nav-logo img{height:84px}
.nav-links{display:flex;gap:28px;align-items:center;list-style:none}
.nav-links a{font-size:.9rem;color:rgba(232,237,247,.85);font-weight:500;transition:.2s}
.nav-links a:hover{color:#fff}
.btn{display:inline-block;padding:12px 28px;border-radius:40px;font-weight:600;font-size:.92rem;transition:.25s;cursor:pointer;border:none;font-family:'Inter',sans-serif}
.btn-gold{background:#fff;color:var(--brand)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(255,255,255,.25)}
.btn-ghost{border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold2)}
.hamburger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.hamburger span{width:24px;height:2px;background:var(--text);transition:.3s}

/* NAV CTA BUTTONS */
.btn-register,.btn-sponsor{position:relative;overflow:hidden;border-radius:40px;font-weight:700;letter-spacing:.02em;transition:.28s}
.btn-register,.nav-links a.btn-register{background:linear-gradient(135deg,#ffffff,#e4ecff 55%,#c6d8ff);color:#14306b;box-shadow:0 4px 18px rgba(185,208,255,.32)}
.btn-register:hover,.nav-links a.btn-register:hover{transform:translateY(-2px);color:#0d1d42;box-shadow:0 10px 30px rgba(255,255,255,.45)}
.btn-sponsor,.nav-links a.btn-sponsor{background:linear-gradient(135deg,rgba(22,41,90,.9),rgba(13,29,66,.9));color:var(--cyan);border:1px solid rgba(185,208,255,.55);box-shadow:0 4px 18px rgba(10,23,52,.5)}
.btn-sponsor:hover,.nav-links a.btn-sponsor:hover{transform:translateY(-2px);color:#fff;border-color:#fff;box-shadow:0 10px 30px rgba(143,179,255,.35)}
.btn-register::after,.btn-sponsor::after{content:'';position:absolute;top:0;left:-120%;width:60%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);animation:shine 4.5s infinite}
.btn-sponsor::after{animation-delay:1.6s}
@keyframes shine{0%{left:-120%}22%{left:140%}100%{left:140%}}
.nav-cta{display:flex;gap:12px;align-items:center}
/* the nav CTA for the page you're already on */
.nav-links a.btn-sponsor.current{border-color:#fff;color:#fff;background:rgba(255,255,255,.12)}

/* VENUE */
.venue-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.venue-card{background:linear-gradient(150deg,var(--card),rgba(10,23,52,.5));border:1px solid var(--line);
  border-radius:14px;padding:26px 24px;transition:.28s}
.venue-card:hover{transform:translateY(-6px);border-color:rgba(143,179,255,.45);box-shadow:0 18px 44px rgba(0,0,0,.4)}
.venue-card .v-ico{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;color:var(--gold);
  background:rgba(143,179,255,.14);border:1px solid rgba(143,179,255,.3);margin-bottom:16px}
.venue-card .v-ico svg{width:20px;height:20px}
.venue-card h4{font-size:1.02rem;font-weight:600;margin-bottom:8px}
.venue-card p{color:var(--muted);font-size:.9rem;line-height:1.6}

/* CTA pair — same baseline, same height */
.cta-row{display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:34px}
.cta-row .btn{display:inline-flex;align-items:center;justify-content:center;
  min-height:52px;padding:0 30px;border:1px solid transparent;line-height:1}

/* HERO */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding:170px 0 80px}
#stars{position:absolute;inset:0;z-index:0}
.hero::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 70% 20%,rgba(185,208,255,.08),transparent 55%),radial-gradient(ellipse at 20% 80%,rgba(143,179,255,.07),transparent 50%);pointer-events:none}
.hero-content{position:relative;z-index:2;max-width:860px}
/* HERO META BAR — edition · dates · venue */
.hero-badge{position:relative;display:inline-flex;align-items:center;flex-wrap:wrap;gap:6px;
  border:1px solid rgba(185,208,255,.32);border-radius:40px;padding:9px 10px;margin-bottom:30px;
  font-size:.86rem;color:var(--cyan);overflow:hidden;
  background:linear-gradient(100deg,rgba(31,64,128,.55),rgba(13,29,66,.35) 55%,rgba(143,179,255,.12));
  backdrop-filter:blur(8px);box-shadow:0 8px 30px rgba(5,13,32,.5)}
/* slow shine sweep */
.hero-badge::after{content:'';position:absolute;top:0;left:-140%;width:55%;height:100%;pointer-events:none;
  background:linear-gradient(100deg,transparent,rgba(198,216,255,.22),transparent);
  transform:skewX(-20deg);animation:shine 6s 1.5s infinite}
.hb-item{display:inline-flex;align-items:center;gap:8px;padding:3px 12px;white-space:nowrap}
.hb-item b{color:#fff;font-weight:600}
.hb-item svg{width:15px;height:15px;color:var(--gold);flex:none}
.hb-live{color:var(--gold2);font-weight:600;letter-spacing:.02em;
  background:rgba(143,179,255,.16);border:1px solid rgba(143,179,255,.34);border-radius:40px;padding:3px 14px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);flex:none;
  box-shadow:0 0 0 0 rgba(143,179,255,.6);animation:pulse-ring 2.4s infinite}
.hb-sep{width:1px;height:16px;background:rgba(185,208,255,.28);flex:none}
@keyframes pulse-ring{
  0%{box-shadow:0 0 0 0 rgba(143,179,255,.55)}
  70%{box-shadow:0 0 0 7px rgba(143,179,255,0)}
  100%{box-shadow:0 0 0 0 rgba(143,179,255,0)}
}
@media(max-width:720px){
  .hero-badge{border-radius:16px;padding:10px 8px;font-size:.8rem}
  .hb-sep{display:none}
  .hb-item{white-space:normal}
}
@media(prefers-reduced-motion:reduce){
  .hero-badge::after,.hero-badge .dot{animation:none}
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(1.5rem,7vw,4.4rem);font-weight:700;margin-bottom:10px;white-space:nowrap}
.hero h1 .accent{background:linear-gradient(90deg,var(--gold2),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .tagline{font-size:clamp(1.05rem,2vw,1.4rem);color:var(--cyan);font-family:'Space Grotesk',sans-serif;font-weight:500;margin-bottom:22px;letter-spacing:.01em}
.hero p.lead{color:var(--muted);font-size:1.08rem;max-width:640px;margin-bottom:36px}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.countdown{display:flex;gap:14px;flex-wrap:wrap}
.cd-box{background:rgba(11,23,48,.75);border:1px solid var(--line);border-radius:var(--radius);padding:16px 22px;min-width:92px;text-align:center;backdrop-filter:blur(6px)}
.cd-box .num{font-family:'Space Grotesk',sans-serif;font-size:2rem;font-weight:700;color:var(--gold2)}
.cd-box .lbl{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}

/* TIMELINE */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:20px}
.timeline::before{content:'';position:absolute;top:26px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,var(--gold),var(--cyan))}
.tl-item{text-align:center;padding:0 14px;position:relative}
.tl-dot{width:14px;height:14px;border-radius:50%;background:var(--gold);margin:20px auto 18px;position:relative;z-index:2;box-shadow:0 0 0 6px rgba(143,179,255,.15)}
.tl-item:last-child .tl-dot{background:var(--cyan);box-shadow:0 0 0 6px rgba(185,208,255,.15)}
.tl-year{font-family:'Space Grotesk',sans-serif;font-size:1.35rem;font-weight:700;color:var(--gold2)}
.tl-item:last-child .tl-year{color:var(--cyan)}
.tl-desc{font-size:.88rem;color:var(--muted);margin-top:6px}

/* STATS */
.stats-band{background:linear-gradient(180deg,var(--bg2),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat{text-align:center;padding:26px 12px}
.stat .num{font-family:'Space Grotesk',sans-serif;font-size:clamp(2rem,4vw,2.9rem);font-weight:700;background:linear-gradient(135deg,var(--gold2),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--muted);font-size:.92rem;margin-top:6px}

/* PILLARS */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:36px 30px;transition:.3s}
.pillar:hover{transform:translateY(-6px);border-color:rgba(143,179,255,.45)}
.pillar .icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:20px;
  color:var(--gold);background:rgba(143,179,255,.13);border:1px solid rgba(143,179,255,.32);transition:.3s}
.pillar .icon svg{width:26px;height:26px}
.pillar:hover .icon{background:rgba(143,179,255,.24);color:var(--gold2);transform:scale(1.06)}
.pillar h3{font-size:1.25rem;margin-bottom:12px;color:var(--gold2)}
/* inline icons in notes + headings */
.spk-note .ni{width:17px;height:17px;flex:none;color:var(--gold);vertical-align:-3px;margin-right:9px}
.impact-box h3 .bi{width:22px;height:22px;color:var(--gold);vertical-align:-4px;margin-right:10px}
.pillar p{color:var(--muted);font-size:.95rem}

/* AGENDA */
.day-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.day-tab{position:relative;display:flex;align-items:center;gap:11px;padding:11px 22px;border-radius:40px;
  border:1px solid var(--line);background:rgba(13,29,66,.5);color:var(--muted);cursor:pointer;
  font-family:'Space Grotesk',sans-serif;transition:.25s;text-align:left}
.day-tab .ic{width:18px;height:18px;flex:none;opacity:.8}
.day-tab .d-date{display:block;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600;opacity:.8}
.day-tab .d-name{display:block;font-size:.94rem;font-weight:700;color:var(--text);margin-top:1px}
.day-tab:hover{border-color:rgba(143,179,255,.5);transform:translateY(-2px)}
.day-tab.active{background:linear-gradient(135deg,#fff,#dce6ff);border-color:transparent;color:var(--brand);
  box-shadow:0 10px 30px rgba(143,179,255,.28)}
.day-tab.active .d-name,.day-tab.active .ic{color:var(--brand);opacity:1}
.day-panel{display:none}
.day-panel.active{display:block;animation:fadeUp .4s ease}

/* day header + orbit figure */
.day-head{position:relative;display:flex;align-items:center;justify-content:space-between;gap:26px;
  background:linear-gradient(115deg,rgba(31,64,128,.62),rgba(13,29,66,.25) 70%);
  border:1px solid var(--line);border-radius:18px;padding:28px 30px;margin-bottom:24px;overflow:hidden}
.day-head::after{content:'';position:absolute;inset:0;
  background:radial-gradient(420px 200px at 88% 50%,rgba(143,179,255,.16),transparent 70%);pointer-events:none}
.day-head h3{font-size:clamp(1.3rem,2.6vw,1.75rem);font-weight:700}
.day-head .sub{color:var(--cyan);font-size:.95rem;margin-top:6px}
.day-stats{display:flex;gap:26px;margin-top:16px;flex-wrap:wrap}
.day-stats div{font-size:.8rem;color:var(--muted)}
.day-stats b{display:block;font-family:'Space Grotesk',sans-serif;font-size:1.4rem;color:var(--gold2);font-weight:700}
.day-fig{width:132px;height:132px;flex:none;position:relative;z-index:1}
.day-fig .orbit{transform-origin:60px 60px;animation:spin 26s linear infinite}
.day-fig .orbit-2{transform-origin:60px 60px;animation:spin 16s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.day-fig .orbit,.day-fig .orbit-2{animation:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.day-head{margin-bottom:26px}
.day-head h3{font-size:1.5rem;color:var(--gold2)}
.day-head p{color:var(--cyan);font-family:'Space Grotesk',sans-serif;margin-top:4px}
/* SESSION CARDS — colour-coded by track */
.sessions{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.session{--tc:#8fb3ff;position:relative;display:flex;align-items:flex-start;gap:14px;
  background:linear-gradient(140deg,var(--card),rgba(10,23,52,.55));border:1px solid var(--line);
  border-left:3px solid var(--tc);border-radius:12px;padding:16px 18px;transition:.28s;overflow:hidden}
.session::after{content:'';position:absolute;right:-40px;top:-40px;width:110px;height:110px;border-radius:50%;
  background:var(--tc);opacity:.07;transition:.35s}
.session:hover{transform:translateY(-4px);border-color:rgba(143,179,255,.45);
  box-shadow:0 16px 40px rgba(0,0,0,.4)}
.session:hover::after{opacity:.16;transform:scale(1.25)}
.s-ico{width:36px;height:36px;border-radius:10px;flex:none;display:grid;place-items:center;color:var(--tc);
  background:color-mix(in srgb,var(--tc) 15%,transparent);border:1px solid color-mix(in srgb,var(--tc) 32%,transparent)}
.s-ico svg{width:19px;height:19px}
.s-body{position:relative;z-index:1}
.s-body h4{font-size:.95rem;font-weight:600;line-height:1.4;font-family:'Inter',sans-serif}
.s-track{display:inline-block;margin-top:8px;font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:700;color:var(--tc)}
.session[data-track=governance]{--tc:#8fb3ff}
.session[data-track=security]{--tc:#ff9d8c}
.session[data-track=economy]{--tc:#ffcf6b}
.session[data-track=technology]{--tc:#6fe0d0}
.session[data-track=sustainability]{--tc:#8fd99a}
.session[data-track=keynote]{--tc:#c9a9ff}

/* TIMELINE */
.schedule{list-style:none;margin-top:34px;position:relative;padding-left:4px}
.schedule::before{content:'';position:absolute;left:9px;top:14px;bottom:16px;width:1px;
  background:linear-gradient(180deg,var(--gold),rgba(143,179,255,.05))}
.schedule li{position:relative;display:flex;align-items:center;gap:18px;padding:15px 0 15px 34px;
  border-bottom:1px solid rgba(143,179,255,.1);font-size:.95rem;transition:.22s}
.schedule li:hover{padding-left:40px;color:#fff}
.schedule li::before{content:'';position:absolute;left:4px;top:50%;margin-top:-5px;width:11px;height:11px;
  border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(143,179,255,.14);transition:.22s}
.schedule li:hover::before{background:#fff;box-shadow:0 0 0 6px rgba(143,179,255,.26)}
.schedule li.hi::before{background:var(--cyan)}
.schedule .time{color:var(--gold2);font-family:'Space Grotesk',sans-serif;font-weight:700;min-width:66px;
  font-variant-numeric:tabular-nums}
.schedule .ev{display:flex;align-items:center;gap:10px}
.schedule .ev svg{width:17px;height:17px;color:var(--gold);flex:none;opacity:.85}
.workshop-chips{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px;align-items:center}
.workshop-chips .wl{font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-right:2px}
.chip{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(185,208,255,.4);color:var(--cyan);
  background:rgba(143,179,255,.06);border-radius:40px;padding:9px 20px;font-size:.85rem;font-weight:600;
  letter-spacing:.04em;transition:.22s;cursor:default}
.chip svg{width:15px;height:15px;opacity:.9}
.chip:hover{background:rgba(143,179,255,.16);border-color:var(--cyan);color:#fff;transform:translateY(-2px)}

/* SPEAKERS */
.spk-note{background:rgba(143,179,255,.08);border:1px solid rgba(143,179,255,.3);border-radius:10px;padding:14px 20px;font-size:.88rem;color:var(--gold2);margin-bottom:40px;max-width:760px}
.spk-group-title{font-size:1.3rem;color:var(--gold2);margin:46px 0 22px;padding-left:14px;border-left:3px solid var(--gold)}
.speakers-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.speaker{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 18px;text-align:center;transition:.3s}
.speaker:hover{transform:translateY(-4px);border-color:rgba(185,208,255,.45)}
.avatar{width:64px;height:64px;border-radius:50%;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.25rem;background:linear-gradient(135deg,var(--bg3),#14264d);border:2px solid rgba(143,179,255,.5);color:var(--gold2)}
.avatar.photo{width:100px;height:100px;padding:0;overflow:hidden;background:var(--bg3)}
.avatar.photo img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.speaker h4{font-size:.98rem;margin-bottom:6px}
.speaker p{font-size:.8rem;color:var(--muted)}

/* PAST EDITIONS */
.editions{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.edition{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s}
.edition:hover{transform:translateY(-5px)}
.edition img{height:230px;width:100%;object-fit:cover}
.edition .body{padding:30px}
.edition .yr{font-family:'Space Grotesk',sans-serif;color:var(--gold);font-weight:700;letter-spacing:.14em;font-size:.85rem}
.edition h3{font-size:1.35rem;margin:8px 0 12px}
.edition p{color:var(--muted);font-size:.95rem;margin-bottom:14px}
.edition ul{list-style:none;font-size:.9rem;color:var(--muted)}
.edition ul li{padding:5px 0 5px 22px;position:relative}
.edition ul li::before{content:'◆';position:absolute;left:0;color:var(--gold);font-size:.6rem;top:10px}
.impact-box{margin-top:28px;background:linear-gradient(135deg,rgba(143,179,255,.12),rgba(185,208,255,.08));border:1px solid rgba(143,179,255,.35);border-radius:var(--radius);padding:32px}
.impact-box h3{color:var(--gold2);margin-bottom:10px;font-size:1.2rem}
.impact-box p{color:var(--text);font-size:.98rem;max-width:900px}

/* PARTNERSHIP */
.part-cats{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:56px}
.part-cat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.part-cat h3{color:var(--cyan);font-size:1.2rem;margin-bottom:14px}
.part-cat ul{list-style:none;color:var(--muted);font-size:.93rem}
.part-cat ul li{padding:6px 0 6px 24px;position:relative}
.part-cat ul li::before{content:'→';position:absolute;left:0;color:var(--gold)}
.tiers{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tier{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;display:flex;flex-direction:column;transition:.3s}
.tier:hover{transform:translateY(-6px)}
.tier.featured{border-color:var(--gold);background:linear-gradient(180deg,rgba(143,179,255,.1),var(--card))}
.tier .tname{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.05rem;color:var(--gold2)}
.tier .tprice{font-family:'Space Grotesk',sans-serif;font-size:1.7rem;font-weight:700;margin:10px 0 4px}
.tier .tnote{font-size:.78rem;color:var(--cyan);margin-bottom:16px}
.tier ul{list-style:none;font-size:.85rem;color:var(--muted);flex:1}
.tier ul li{padding:5px 0 5px 20px;position:relative}
.tier ul li::before{content:'✦';position:absolute;left:0;color:var(--gold);font-size:.7rem}

/* CONTACT / FOOTER */
.contact-band{background:linear-gradient(135deg,var(--bg3),var(--bg2));border-top:1px solid var(--line);text-align:center}
.contact-band h2{font-size:clamp(1.8rem,3.4vw,2.6rem);margin-bottom:16px}
.contact-band p{color:var(--muted);max-width:620px;margin:0 auto 34px}
footer{border-top:1px solid var(--line);padding:44px 0;background:var(--bg)}
.foot-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-inner img{height:64px}
.foot-inner p{color:var(--muted);font-size:.85rem}

/* REVEAL */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* REGISTRATION MODAL */
.modal-overlay{position:fixed;inset:0;z-index:200;background:rgba(2,6,18,.78);backdrop-filter:blur(6px);display:flex;align-items:flex-start;justify-content:center;padding:40px 20px;overflow-y:auto;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s}
.modal-overlay.open{opacity:1;visibility:visible}
.modal{position:relative;width:100%;max-width:660px;background:linear-gradient(180deg,var(--bg2),var(--card));border:1px solid var(--line);border-radius:18px;padding:40px;margin:auto;transform:translateY(24px) scale(.98);transition:transform .35s cubic-bezier(.2,.8,.3,1)}
.modal-overlay.open .modal{transform:none}
.modal-close{position:absolute;top:16px;right:18px;background:none;border:none;color:var(--muted);font-size:1.6rem;line-height:1;cursor:pointer;transition:.2s;padding:4px 8px}
.modal-close:hover{color:var(--gold2)}
.modal h3{font-size:1.6rem;color:var(--gold2);margin-bottom:8px}
.modal .modal-sub{color:var(--muted);font-size:.94rem;margin-bottom:28px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);font-weight:600}
.field input,.field select,.field textarea{background:rgba(5,13,32,.7);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--text);font-family:'Inter',sans-serif;font-size:.95rem;transition:.2s;width:100%}
.field textarea{resize:vertical;min-height:88px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);background:rgba(5,13,32,.95)}
.field select option{background:var(--bg2);color:var(--text)}
.field input::placeholder,.field textarea::placeholder{color:#5c6a89}
/* SEARCHABLE COUNTRY COMBOBOX */
.combo{position:relative}
.combo input{width:100%;padding-left:38px}
.combo-flag{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:1.05rem;
  line-height:1;pointer-events:none;z-index:2}
.combo:not(.has-flag) input{padding-left:14px}
.combo-list{position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:20;list-style:none;
  max-height:230px;overflow-y:auto;background:#08132c;border:1px solid var(--line);
  border-radius:10px;box-shadow:0 18px 44px rgba(0,0,0,.55);display:none;padding:4px}
.combo.open .combo-list{display:block}
.combo-list li{padding:9px 12px;border-radius:7px;font-size:.92rem;cursor:pointer;
  display:flex;align-items:center;gap:10px;color:var(--text)}
.combo-list li:hover,.combo-list li.active{background:rgba(143,179,255,.16)}
.combo-list li .fl{font-size:1.05rem;line-height:1}
.combo-list li.none{color:var(--muted);cursor:default;background:none}
.combo-list::-webkit-scrollbar{width:8px}
.combo-list::-webkit-scrollbar-thumb{background:rgba(143,179,255,.28);border-radius:8px}
.form-note{font-size:.78rem;color:var(--muted);margin-top:16px}
.modal .btn-gold{width:100%;margin-top:22px;padding:14px 28px}
.form-success{display:none;text-align:center;padding:20px 0}
.form-success .tick{width:64px;height:64px;border-radius:50%;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;background:rgba(143,179,255,.14);border:2px solid var(--gold);color:var(--gold2)}
.form-success .tick.gold{background:rgba(185,208,255,.14);border-color:var(--cyan)}
.modal-eyebrow{display:inline-block;font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:10px}
.modal-gold{border-color:rgba(143,179,255,.4);background:linear-gradient(180deg,var(--bg3),var(--bg2) 55%,var(--card))}
.modal-gold::before{content:'';position:absolute;inset:0;border-radius:18px;pointer-events:none;background:radial-gradient(ellipse at 85% 0%,rgba(185,208,255,.14),transparent 55%)}
.modal-gold h3{background:linear-gradient(120deg,#ffffff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;font-size:1.9rem}
.modal-gold form,.modal-gold .form-success{position:relative;z-index:1}
.form-success h4{font-size:1.35rem;color:var(--gold2);margin-bottom:10px}
.form-success p{color:var(--muted);font-size:.95rem;max-width:420px;margin:0 auto}
body.modal-open{overflow:hidden}

/* ============================================================
   FIXED FULL-PAGE VIDEO BACKGROUND  (index.html — body.has-bg-video)
   Video is pinned to the viewport; all page content scrolls over it.
   ============================================================ */
.bg-video{position:fixed;inset:0;z-index:-2;overflow:hidden;background:var(--bg) center/cover no-repeat;pointer-events:none}
.bg-video video{width:100%;height:100%;object-fit:cover;display:block;
  /* subtle push toward the brand palette */
  filter:saturate(1.05) contrast(1.04) brightness(.92)}
/* readability scrim: uniform dark wash + soft vignette, sits above video, below content */
.bg-video::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse at 50% 45%,rgba(5,13,32,.42),rgba(5,13,32,.78) 100%),
    linear-gradient(180deg,rgba(5,13,32,.62),rgba(5,13,32,.72));}

/* let the video show through the page */
html{background:var(--bg)}
body.has-bg-video{background:transparent}
body.has-bg-video #stars{opacity:.55}

/* translucent section bands so the orbit stays visible while scrolling */
body.has-bg-video .sec-band{background:rgba(10,23,52,.60);backdrop-filter:blur(3px)}
body.has-bg-video .stats-band{background:linear-gradient(180deg,rgba(10,23,52,.72),rgba(5,13,32,.55));backdrop-filter:blur(3px)}
body.has-bg-video .contact-band{background:linear-gradient(135deg,rgba(22,41,90,.72),rgba(10,23,52,.68));backdrop-filter:blur(3px)}
body.has-bg-video footer{background:rgba(5,13,32,.78);backdrop-filter:blur(3px)}

/* cards: glass instead of solid, so the video reads behind them */
body.has-bg-video .pillar,
body.has-bg-video .speaker,
body.has-bg-video .edition,
body.has-bg-video .part-cat,
body.has-bg-video .tier,
body.has-bg-video .session{background:rgba(13,29,66,.66);backdrop-filter:blur(10px)}
body.has-bg-video .cd-box{background:rgba(11,23,48,.55)}

/* fallback backdrop (shows if the video is unavailable, on mobile, or with reduced motion) */
.bg-video{background-image:
  radial-gradient(ellipse at 70% 15%,rgba(143,179,255,.16),transparent 55%),
  radial-gradient(ellipse at 15% 85%,rgba(31,64,128,.35),transparent 55%),
  linear-gradient(180deg,#050d20,#0a1734 60%,#050d20)}

/* mobile: iOS/Android throttle looping background video and it eats battery — use the backdrop */
@media(max-width:720px){
  .bg-video video{display:none}
  .bg-video::after{background:linear-gradient(180deg,rgba(5,13,32,.35),rgba(5,13,32,.5))}
}
/* motion-sensitive users get the static backdrop too */
@media(prefers-reduced-motion:reduce){
  .bg-video video{display:none}
}

@media(max-width:960px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .pillars,.editions,.part-cats{grid-template-columns:1fr}
  .tiers{grid-template-columns:repeat(2,1fr)}
  .sessions{grid-template-columns:1fr}
  .timeline{grid-template-columns:repeat(2,1fr);gap:30px}
  .timeline::before{display:none}
  .day-head{flex-direction:column;align-items:flex-start;gap:18px}
  .day-fig{width:104px;height:104px;align-self:center}
  .day-tab{flex:1 1 auto}
  .venue-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .venue-grid{grid-template-columns:1fr}
}
@media(max-width:720px){
  .nav-links{position:fixed;top:0;right:-100%;height:100vh;width:min(78vw,320px);background:var(--brand);flex-direction:column;justify-content:center;gap:30px;transition:.35s;border-left:1px solid rgba(255,255,255,.14)}
  .nav-links.open{right:0}
  .hamburger{display:flex;z-index:110}
  .nav-logo img{height:80px}
  nav.scrolled .nav-logo img{height:54px}
  .nav-inner{min-height:70px}
  .nav-cta{flex-direction:column;gap:14px}
  .tiers{grid-template-columns:1fr}
  section{padding:70px 0}
  .modal{padding:32px 22px}
  .form-grid{grid-template-columns:1fr}
}