/* ================================================================
   EFSM 2026 — style.css  |  Design premium + responsive complet
   Auteur : Jean Narivelo
   ================================================================ */

/* ══ VARIABLES ══ */
:root{
  --blue:#344BD1; --blue-dk:#1E30A8; --blue-mid:#4A60DB;
  --blue-lt:#6B7FE3; --blue-pale:#EEF1FC;
  --yellow:#FFB400; --yellow-lt:#FFD166; --yellow-dk:#D99500;
  --white:#FFFFFF; --off:#F7F8FE; --dark:#0D1240;
  --muted:#5A6080; --border:#E2E8F5;
  --r:16px; --r-sm:10px;
  --sh1:0 2px 8px rgba(52,75,209,.06);
  --sh2:0 6px 24px rgba(52,75,209,.11);
  --sh3:0 16px 48px rgba(52,75,209,.16);
}

/* ══ RESET ══ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;font-size:16px}
body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--white);color:var(--dark);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4,h5{font-family:'Sora',sans-serif}
a{color:inherit}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--blue-pale)}
::-webkit-scrollbar-thumb{background:var(--blue);border-radius:2px}

/* ══ PROGRESS BAR ══ */
#progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--yellow));z-index:9999;transition:width .1s;border-radius:0 3px 3px 0;box-shadow:0 0 8px rgba(255,180,0,.5)}

/* ══ NAV ══ */
#nav{transition:all .3s cubic-bezier(.4,0,.2,1)}
#nav.scrolled{background:rgba(14,22,88,.97);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px);box-shadow:0 4px 30px rgba(0,0,0,.25),0 1px 0 rgba(255,255,255,.07)}
.nav-link{position:relative;transition:color .2s}
.nav-link::after{content:'';position:absolute;bottom:-3px;left:0;width:0;height:2px;background:var(--yellow);border-radius:2px;transition:width .3s}
.nav-link:hover::after,.nav-link.active-nav::after{width:100%}
.nav-link.active-nav{color:#fff!important}
#mobile-menu{transform:translateX(100%);transition:transform .32s cubic-bezier(.4,0,.2,1)}
#mobile-menu.open{transform:translateX(0)}
#back-top{opacity:0;pointer-events:none;transition:all .3s}
#back-top.show{opacity:1;pointer-events:auto}

/* ══ HERO ══ */
#hero{
  min-height:100svh;
  background:linear-gradient(145deg,#0A1562 0%,#182BAA 38%,#344BD1 65%,#1F3AC8 100%);
  position:relative;overflow:hidden;display:flex;flex-direction:column
}
#hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 50% at 85% 20%,rgba(255,180,0,.13) 0%,transparent 60%),radial-gradient(ellipse 60% 60% at 10% 80%,rgba(100,130,255,.14) 0%,transparent 55%);pointer-events:none}
#hero::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);background-size:48px 48px;pointer-events:none}
.bg-circle{position:absolute;border-radius:50%;pointer-events:none;background:rgba(255,255,255,.04)}
.hero-content{flex:1;display:flex;align-items:center;justify-content:center}
.hero-wave{height:clamp(50px,6vw,80px);overflow:hidden;flex-shrink:0}
.hero-wave svg{width:100%;height:100%}

/* ══ BADGES ══ */
.badge-yellow{background:var(--yellow);color:var(--dark);font-weight:800;border-radius:100px;padding:.4rem 1.1rem;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;display:inline-flex;align-items:center;gap:.4rem;font-family:'Sora',sans-serif;box-shadow:0 4px 16px rgba(255,180,0,.35)}
.badge-blue{background:rgba(255,255,255,.1);color:rgba(255,255,255,.85);font-weight:600;border:1px solid rgba(255,255,255,.18);border-radius:100px;padding:.32rem .9rem;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;display:inline-block;font-family:'Sora',sans-serif;backdrop-filter:blur(4px)}

/* ══ SECTION HEADERS ══ */
.section-eyebrow{font-size:.65rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--blue);font-family:'Sora',sans-serif;display:flex;align-items:center;gap:.5rem}
.section-eyebrow::before{content:'';display:inline-block;width:20px;height:2px;background:var(--yellow);border-radius:1px;flex-shrink:0}
.section-title{font-family:'Sora',sans-serif;line-height:1.1}
.rule{height:3px;width:48px;background:linear-gradient(90deg,var(--yellow),rgba(255,180,0,.2));border-radius:2px}

/* ════════════════════════════════════════════════════════════════
   COUNTDOWN — STRIP INSIDE HERO (bottom, just above the wave)
   ════════════════════════════════════════════════════════════════ */
.cd-strip{
  position:relative;z-index:5;
  background:rgba(0,0,0,.28);
  backdrop-filter:blur(12px) saturate(160%);
  -webkit-backdrop-filter:blur(12px) saturate(160%);
  border-top:1px solid rgba(255,255,255,.1);
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:clamp(.75rem,3vw,2rem);
  padding:clamp(.9rem,2.5vw,1.4rem) clamp(1rem,4vw,3rem);
}

/* left label */
.cd-strip-label{
  display:flex;align-items:center;gap:.55rem;
  font-size:clamp(.62rem,1.4vw,.75rem);
  font-weight:600;color:rgba(255,255,255,.6);
  letter-spacing:.05em;white-space:nowrap;
  font-family:'Plus Jakarta Sans',sans-serif;
}

/* right CTA */
.cd-strip-cta{
  display:inline-flex;align-items:center;gap:.4rem;
  background:var(--yellow);color:var(--dark);
  font-family:'Sora',sans-serif;font-weight:800;
  font-size:clamp(.68rem,1.4vw,.82rem);
  padding:clamp(.45rem,1.2vw,.65rem) clamp(.85rem,2vw,1.3rem);
  border-radius:100px;text-decoration:none;
  transition:transform .2s,box-shadow .2s;
  box-shadow:0 4px 18px rgba(255,180,0,.4);
  white-space:nowrap;justify-self:end;
}
.cd-strip-cta svg{width:14px;height:14px;flex-shrink:0}
.cd-strip-cta:hover{transform:scale(1.05);box-shadow:0 6px 26px rgba(255,180,0,.55)}

/* ended inline */
.cd-ended{
  display:flex;align-items:center;gap:.5rem;
  color:var(--yellow-lt);font-size:.82rem;font-weight:600;
  grid-column:1/-1;justify-content:center;
}
.cd-ended.hidden{display:none}
.cd-ended a{color:#fff;text-decoration:underline;font-size:.75rem}

/* Live dot */
.cd-live-dot{width:7px;height:7px;border-radius:50%;background:#4ade80;flex-shrink:0;animation:live-pulse 2s ease-out infinite}
@keyframes live-pulse{0%{box-shadow:0 0 0 0 rgba(74,222,128,.5)}70%{box-shadow:0 0 0 7px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}

/* ── COUNTDOWN GRID ── */
.cd-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;
  align-items:end;
  gap:0;
  width:100%;
  max-width:clamp(240px,42vw,400px);
  justify-self:center;
}
.cd-box{
  background:rgba(255,255,255,.11);
  border:1px solid rgba(255,255,255,.18);
  border-radius:clamp(8px,1.5vw,13px);
  padding:clamp(.45rem,1.5vw,.8rem) clamp(.25rem,.8vw,.5rem);
  text-align:center;
  backdrop-filter:blur(6px);
  transition:background .2s;
  min-width:0;
}
.cd-num{
  font-family:'Sora',sans-serif;
  font-size:clamp(1.25rem,4.5vw,2.2rem);
  font-weight:800;line-height:1;
  color:var(--yellow-lt);display:block;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.cd-label{
  font-size:clamp(.4rem,1.1vw,.55rem);
  font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:rgba(255,255,255,.45);
  margin-top:.25rem;display:block;
}
.cd-sep{
  font-family:'Sora',sans-serif;
  font-size:clamp(.9rem,2.5vw,1.6rem);
  font-weight:800;color:rgba(255,255,255,.22);
  line-height:1;align-self:end;
  padding-bottom:clamp(.55rem,1.8vw,1rem);
  padding-left:clamp(.1rem,.5vw,.3rem);
  padding-right:clamp(.1rem,.5vw,.3rem);
}
@keyframes cd-flip{0%{transform:rotateX(0)}50%{transform:rotateX(-90deg);opacity:.3}100%{transform:rotateX(0);opacity:1}}
.cd-flip{animation:cd-flip .36s ease}

/* ══ STAT CARDS ══ */
.stat-card{background:var(--white);border:1px solid var(--border);border-radius:var(--r);transition:all .25s;box-shadow:var(--sh1)}
.stat-card:hover{border-color:var(--blue-lt);box-shadow:var(--sh2);transform:translateY(-2px)}

/* ══ AXE CARDS ══ */
.axe-card{border-radius:var(--r);overflow:hidden;transition:transform .3s,box-shadow .3s;box-shadow:var(--sh2)}
.axe-card:hover{transform:translateY(-6px);box-shadow:var(--sh3)}
.axe-num{font-family:'Sora',sans-serif;font-size:6rem;font-weight:800;position:absolute;right:-8px;top:-16px;opacity:.07;line-height:1;color:#fff;pointer-events:none;user-select:none}

/* ══ PROGRAMME ══ */
.prog-table tr{border-bottom:1px solid var(--border)}
.prog-table tr:last-child{border-bottom:none}
.time-cell{font-family:'Sora',sans-serif;font-size:.78rem;font-weight:700;color:var(--blue);white-space:nowrap;padding:.9rem 1rem .9rem 0;width:120px;vertical-align:top}
.act-cell{padding:.9rem 0;font-size:.875rem;line-height:1.6;color:var(--dark)}
.conf-highlight{background:linear-gradient(135deg,var(--blue-pale),#f0f3ff);border-left:3px solid var(--yellow);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:.8rem 1rem;margin:.25rem 0}
.conf-speaker{font-weight:700;color:var(--blue-dk);font-size:.85rem}
.conf-theme{font-style:italic;color:var(--muted);font-size:.82rem;margin-top:.25rem}
.pause-row{opacity:.5}
.tab-pill{border-radius:100px;padding:.5rem 1.3rem;font-size:.78rem;font-weight:700;cursor:pointer;transition:all .2s;color:var(--muted);background:var(--white);border:2px solid var(--border);font-family:'Sora',sans-serif}
.tab-pill.active{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 4px 16px rgba(52,75,209,.35)}

/* ══ COMMITTEE ══ */
.member-card{border:1px solid var(--border);border-radius:var(--r-sm);padding:.9rem 1rem;display:flex;align-items:flex-start;gap:.75rem;transition:all .2s;background:var(--white);box-shadow:var(--sh1)}
.member-card:hover{border-color:var(--blue-lt);background:var(--blue-pale);transform:translateY(-1px);box-shadow:var(--sh2)}
.avatar{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.82rem;flex-shrink:0;font-family:'Sora',sans-serif;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.country-tag{font-size:.6rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;padding:.15rem .55rem;border-radius:4px;background:rgba(52,75,209,.08);color:var(--blue-mid);display:inline-block}

/* ══ PAPER CARDS ══ */
.paper-card{border-radius:var(--r-sm);border:1px solid var(--border);padding:1.1rem 1.25rem;background:var(--white);transition:all .25s;border-left:4px solid transparent;box-shadow:var(--sh1)}
.paper-card:hover{border-left-color:var(--yellow);background:linear-gradient(to right,#FFFDF5,var(--white) 40%);box-shadow:var(--sh2);transform:translateX(3px)}
.paper-card.hidden-by-search{display:none}


/* ══ KEYWORDS ══ */
.kw{font-size:.6rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;border-radius:4px;padding:.2rem .58rem;display:inline-block;margin-bottom:2px;transition:transform .15s}
.kw:hover{transform:scale(1.05)}
.kw-0{background:#EEF1FC;color:#344BD1} .kw-1{background:#FEF3C7;color:#92400E}
.kw-2{background:#F0FDF4;color:#166534} .kw-3{background:#FDF4FF;color:#7E22CE}
.kw-4{background:#FFF1F2;color:#9F1239} .kw-5{background:#F0F9FF;color:#0C4A6E}
.kw-6{background:#FFF7ED;color:#9A3412} .kw-7{background:#F5F3FF;color:#5B21B6}
.kw-8{background:#ECFDF5;color:#064E3B} .kw-9{background:#FFF5F5;color:#C53030}
.kw-10{background:#EFF6FF;color:#1E40AF} .kw-11{background:#FEF9C3;color:#713F12}
.kw-12{background:#F0FDFA;color:#134E4A} .kw-13{background:#FFF0FB;color:#86198F}
.kw-14{background:#FEFCE8;color:#854D0E}

/* ══ SPEAKERS ══ */
.speaker-card{background:var(--white);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;transition:all .25s;box-shadow:var(--sh1)}
.speaker-card:hover{box-shadow:var(--sh3);transform:translateY(-4px);border-color:var(--blue-lt)}
.speaker-stripe{height:5px}
.partner-pill{border:1px solid var(--border);border-radius:8px;padding:.45rem .9rem;font-size:.7rem;font-weight:700;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;background:var(--white)}

/* ══ SCIENCESCONF BANNER ══ */
.sciencesconf-banner{background:linear-gradient(135deg,rgba(255,180,0,.15),rgba(255,180,0,.05));border:1px solid rgba(255,180,0,.3);border-radius:var(--r);transition:all .25s;text-decoration:none;display:flex}
.sciencesconf-banner:hover{background:linear-gradient(135deg,rgba(255,180,0,.25),rgba(255,180,0,.1));box-shadow:0 8px 32px rgba(255,180,0,.18);transform:translateY(-2px)}

/* ══ CELEBRATION ══ */
#celebration-overlay{position:fixed;inset:0;z-index:9000;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .5s}
#celebration-overlay.active{opacity:1;pointer-events:auto}
.cel-backdrop{position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(20,30,100,.92),rgba(5,10,50,.97));backdrop-filter:blur(6px)}
.cel-card{position:relative;z-index:1;background:linear-gradient(145deg,rgba(52,75,209,.9),rgba(20,35,130,.95));border:1px solid rgba(255,180,0,.3);border-radius:24px;padding:2.5rem 2rem;max-width:520px;width:90%;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.5);transform:scale(.85) translateY(30px);transition:transform .6s cubic-bezier(.34,1.56,.64,1),opacity .5s;opacity:0}
#celebration-overlay.active .cel-card{transform:scale(1) translateY(0);opacity:1}
.cel-emoji{font-size:3.5rem;display:block;margin-bottom:.75rem;animation:cel-bounce .8s ease infinite alternate}
@keyframes cel-bounce{from{transform:translateY(0) rotate(-5deg)}to{transform:translateY(-10px) rotate(5deg)}}
.cel-title{font-family:'Sora',sans-serif;font-size:1.6rem;font-weight:800;color:#fff;line-height:1.15;margin-bottom:.5rem}
.cel-title span{color:var(--yellow-lt)}
.cel-sub{font-size:.85rem;color:rgba(255,255,255,.6);margin-bottom:1.5rem;line-height:1.6}
.cel-badge{display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,180,0,.15);border:1px solid rgba(255,180,0,.35);border-radius:100px;padding:.4rem 1rem;font-size:.75rem;font-weight:700;color:var(--yellow-lt);margin-bottom:1.5rem;font-family:'Sora',sans-serif}
.cel-actions{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}
.cel-btn-primary{background:var(--yellow);color:var(--dark);padding:.7rem 1.5rem;border-radius:12px;font-weight:700;font-size:.85rem;text-decoration:none;transition:transform .2s;box-shadow:0 4px 18px rgba(255,180,0,.35)}
.cel-btn-primary:hover{transform:scale(1.05)}
.cel-btn-secondary{background:rgba(255,255,255,.1);color:#fff;padding:.7rem 1.5rem;border-radius:12px;font-weight:600;font-size:.85rem;text-decoration:none;border:1px solid rgba(255,255,255,.2);cursor:pointer}
.cel-close{position:absolute;top:.9rem;right:1rem;background:rgba(255,255,255,.1);border:none;color:rgba(255,255,255,.5);width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:1rem;line-height:28px;text-align:center;transition:all .2s}
#confetti-canvas{position:fixed;inset:0;z-index:8999;pointer-events:none}
.spark{position:fixed;border-radius:50%;width:6px;height:6px;pointer-events:none;z-index:8998;animation:spark-fly var(--dur,.8s) ease-out forwards}
@keyframes spark-fly{0%{transform:translate(0,0) scale(1);opacity:1}100%{transform:translate(var(--tx,0),var(--ty,0)) scale(0);opacity:0}}

/* ══ SCROLL ANIMATIONS ══ */
.fade-in{opacity:0;transform:translateY(18px);transition:opacity .58s ease,transform .58s ease}
.fade-in.visible{opacity:1;transform:none}
.slide-left{opacity:0;transform:translateX(-38px);transition:opacity .62s ease,transform .62s ease}
.slide-left.visible{opacity:1;transform:none}
.slide-right{opacity:0;transform:translateX(38px);transition:opacity .62s ease,transform .62s ease}
.slide-right.visible{opacity:1;transform:none}
.zoom-in{opacity:0;transform:scale(.93);transition:opacity .58s ease,transform .58s ease}
.zoom-in.visible{opacity:1;transform:scale(1)}
.stagger-children>*{opacity:0;transform:translateY(20px);transition:opacity .48s ease,transform .48s ease}
.stagger-children.visible>*:nth-child(1){opacity:1;transform:none;transition-delay:.05s}
.stagger-children.visible>*:nth-child(2){opacity:1;transform:none;transition-delay:.12s}
.stagger-children.visible>*:nth-child(3){opacity:1;transform:none;transition-delay:.19s}
.stagger-children.visible>*:nth-child(4){opacity:1;transform:none;transition-delay:.26s}
.stagger-children.visible>*:nth-child(5){opacity:1;transform:none;transition-delay:.33s}
.stagger-children.visible>*:nth-child(n+6){opacity:1;transform:none;transition-delay:.40s}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.float-anim{animation:floatY 3s ease-in-out infinite}
.count-up{font-variant-numeric:tabular-nums}

/* ══ FOOTER ══ */
footer{background:linear-gradient(170deg,#060D40 0%,#0D1240 100%);border-top:1px solid rgba(255,255,255,.06)}

/* ════════════════════════════════════════════════════════════════
   MOBILE BOTTOM NAV
   ════════════════════════════════════════════════════════════════ */
#mob-nav{
  display:none;
  position:fixed;bottom:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(24px) saturate(200%);
  -webkit-backdrop-filter:blur(24px) saturate(200%);
  border-top:1px solid var(--border);
  box-shadow:0 -4px 20px rgba(52,75,209,.09);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
.mob-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:.18rem;
  padding:.36rem .08rem .3rem;
  color:var(--muted);font-size:.5rem;font-weight:700;
  letter-spacing:.04em;text-transform:uppercase;
  text-decoration:none;font-family:'Plus Jakarta Sans',sans-serif;
  border:none;background:none;cursor:pointer;
  -webkit-tap-highlight-color:transparent;
  position:relative;transition:color .15s;
}
.mob-item svg{width:20px;height:20px;transition:transform .2s;stroke-width:2}
.mob-item.active{color:var(--blue)}
.mob-item.active svg{transform:scale(1.18)}
.mob-item.active::before{content:'';position:absolute;top:0;width:22px;height:3px;background:var(--blue);border-radius:0 0 4px 4px}
.mob-item:active{transform:scale(.88)}

/* ════════════════════════════════════════════════════════════════
   BREAKPOINTS
   ════════════════════════════════════════════════════════════════ */

/* ── Desktop: strip 3 col ── */
@media(min-width:1025px){
  .cd-strip{grid-template-columns:auto auto auto;justify-content:center}
  .cd-grid{max-width:360px}
}

/* ── Tablet 769-1024 ── */
@media(min-width:769px)and(max-width:1024px){
  .cd-strip{grid-template-columns:auto auto auto;gap:1.5rem}
  .cd-grid{max-width:320px}
}

/* ── Large phone / small tablet 641-768 ── */
@media(min-width:641px)and(max-width:768px){
  .cd-strip{grid-template-columns:1fr;justify-items:center;gap:.9rem;padding:1.1rem 1.5rem}
  .cd-strip-label{justify-content:center}
  .cd-strip-cta{justify-self:center}
  .cd-grid{max-width:min(380px,90vw)}
  #mob-nav{display:none!important}
  body{padding-bottom:0}
}

/* ── All phones ≤640px ── */
@media(max-width:640px){
  html{-webkit-tap-highlight-color:transparent}
  body{
    overscroll-behavior-y:contain;
    padding-bottom:calc(60px + env(safe-area-inset-bottom,0px));
  }

  /* Show bottom nav */
  #mob-nav{display:flex!important}
  #back-top{bottom:calc(68px + env(safe-area-inset-bottom,0px))!important}

  /* HERO */
  #hero{min-height:100svh}
  #hero .max-w-5xl{padding:5.5rem 1rem 0}
  #hero h1{font-size:clamp(1.65rem,7.5vw,2.4rem)!important;line-height:1.1!important}
  #hero .inline-block{font-size:.76rem!important;padding:.6rem .85rem!important}
  .badge-yellow{font-size:.64rem!important;padding:.35rem .85rem!important}
  #hero .badge-blue{font-size:.58rem!important;padding:.26rem .6rem!important}
  #hero .flex.flex-wrap.gap-3.mb-10{gap:.35rem!important}
  /* stats: always 2×2 */
  #hero .grid{grid-template-columns:repeat(2,1fr)!important;gap:.45rem!important}
  #hero .rounded-2xl.p-4{padding:.65rem .4rem!important}
  #hero .text-3xl{font-size:1.55rem!important}
  #hero .text-xs.mt-1{font-size:.55rem!important}
  /* CTA row */
  #hero .flex.flex-wrap.gap-3:not(.mb-10){gap:.4rem!important}
  #hero .flex.flex-wrap.gap-3:not(.mb-10) a{font-size:.75rem!important;padding:.62rem .95rem!important}

  /* COUNTDOWN STRIP — single column stacked */
  .cd-strip{
    grid-template-columns:1fr!important;
    justify-items:center;
    gap:.75rem;
    padding:.9rem 1rem;
  }
  .cd-strip-label{font-size:.6rem;justify-content:center}
  .cd-strip-cta{justify-self:center;font-size:.72rem!important;padding:.5rem 1rem!important}
  .cd-grid{
    max-width:min(320px,88vw);
    margin:0 auto;
  }
  .cd-num{font-size:clamp(1.5rem,8.5vw,2.2rem)!important}
  .cd-label{font-size:clamp(.42rem,1.4vw,.55rem)!important}
  .cd-sep{font-size:clamp(.9rem,3.5vw,1.4rem)!important;padding-bottom:clamp(.55rem,2vw,.85rem)!important}
  .cd-box{border-radius:9px!important;padding:clamp(.5rem,2.5vw,.75rem) clamp(.22rem,1.2vw,.4rem)!important}

  /* Disable hover on touch devices */
  .cd-box:hover,.stat-card:hover,.axe-card:hover,
  .member-card:hover,.speaker-card:hover,
  .paper-card:hover,.kw:hover,.sciencesconf-banner:hover{transform:none!important}
  /* Touch feedback */
  .paper-card:active{border-left-color:var(--yellow)!important;background:#FFFDF5!important}
  .paper-card button{width:34px!important;height:34px!important;min-width:34px}

  /* Section padding */
  section{padding-top:2.75rem!important;padding-bottom:2.75rem!important}
  section>div.max-w-6xl,section>div.max-w-5xl{padding-left:1rem!important;padding-right:1rem!important}

  /* Programme table */
  .time-cell{width:72px!important;font-size:.68rem!important;padding-right:.3rem!important}
  .act-cell{font-size:.76rem!important}
  .conf-highlight{padding:.5rem .65rem!important}

  /* Tabs */
  .tab-pill{padding:.4rem .8rem!important;font-size:.68rem!important}

  /* Stop float animation */
  .float-anim{animation:none!important}
  .axe-num{font-size:4rem!important}

  /* Footer stacking */
  footer .grid{grid-template-columns:1fr!important}
  footer .pt-8.flex{flex-direction:column!important;gap:.5rem!important;text-align:center!important}
}

/* ── Tiny phones ≤380px ── */
@media(max-width:380px){
  #hero h1{font-size:clamp(1.45rem,8vw,1.75rem)!important}
  .cd-num{font-size:clamp(1.3rem,9vw,1.65rem)!important}
  .cd-sep{font-size:.85rem!important;padding-bottom:.5rem!important}
  .cd-label{font-size:.4rem!important;letter-spacing:.07em!important}
  .cd-box{padding:.45rem .18rem!important;border-radius:7px!important}
  .cd-grid{max-width:96vw!important}
  .cd-strip{padding:.75rem .75rem!important}
  #hero .flex.flex-wrap.gap-3:not(.mb-10) a{font-size:.7rem!important;padding:.55rem .8rem!important}
}

/* ── Landscape phones ── */
@media(max-height:480px)and(max-width:920px){
  #hero{min-height:auto}
  #hero .max-w-5xl{padding:4.5rem 1rem 0}
  #hero h1{font-size:clamp(1.2rem,4.5vw,1.6rem)!important;margin-bottom:.4rem!important}
  .hero-wave{height:40px}
  .cd-strip{grid-template-columns:auto auto auto!important;gap:1rem!important;padding:.65rem 1.25rem!important}
  .cd-strip-label{display:none}
  .cd-num{font-size:clamp(1.1rem,3.8vw,1.4rem)!important}
  .cd-label{font-size:.38rem!important}
  .cd-sep{font-size:.8rem!important;padding-bottom:.4rem!important}
  .cd-box{padding:.38rem .18rem!important;border-radius:7px!important}
  .cd-grid{max-width:min(270px,50vw)!important}
  .badge-yellow{display:none}
  .float-anim{animation:none!important}
}

/* ── Safe area (notch phones) ── */
@supports(padding:max(0px)){
  #mob-nav{padding-bottom:max(.28rem,env(safe-area-inset-bottom))}
  body{padding-left:env(safe-area-inset-left,0);padding-right:env(safe-area-inset-right,0)}
}

/* ── Print ── */
@media print{
  #nav,#mob-nav,#back-top,footer,#celebration-overlay,#confetti-canvas,.cd-strip{display:none!important}
  
  body{padding-bottom:0;font-size:10pt}
  .paper-card{break-inside:avoid}
}


/* ══ PAPER CARDS — ACCORDION ══ */
.paper-card{
  border-radius:var(--r-sm);border:1px solid var(--border);
  padding:1.1rem 1.25rem;background:var(--white);
  transition:border-color .2s,box-shadow .2s,background .2s;
  border-left:4px solid transparent;box-shadow:var(--sh1);
  cursor:pointer;
}
.paper-card:hover{
  border-left-color:var(--yellow);
  background:linear-gradient(to right,#FFFDF5,var(--white) 40%);
  box-shadow:var(--sh2);
}
.paper-card.is-open{
  border-left-color:var(--blue);
  background:linear-gradient(to right,var(--blue-pale),var(--white) 50%);
  box-shadow:var(--sh2);
}
.paper-card.hidden-by-search{display:none}

/* Header row: title+meta on left, chevron on right */
.card-header{
  display:flex;align-items:flex-start;gap:.75rem;
}
.card-header .flex-1{min-width:0}

/* Chevron button */
.cd-chevron{
  flex-shrink:0;width:30px;height:30px;
  border-radius:50%;
  background:var(--blue-pale);color:var(--blue);
  display:flex;align-items:center;justify-content:center;
  font-size:.8rem;font-weight:800;
  transition:transform .28s cubic-bezier(.4,0,.2,1),
             background .2s,color .2s;
  user-select:none;margin-top:.1rem;
}
.paper-card.is-open .cd-chevron{
  transform:rotate(90deg);
  background:var(--blue);color:#fff;
}

/* Abstract — closed by default, animates open */
.paper-abstract{
  overflow:hidden;
  max-height:0;
  transition:max-height .38s cubic-bezier(.4,0,.2,1),
             opacity .28s ease;
  opacity:0;
}
.paper-abstract.is-open{
  opacity:1;
  /* max-height set by JS */
}
.paper-abstract p{
  font-size:.83rem;line-height:1.78;color:#374151;
  margin-bottom:.6rem;text-align:justify;hyphens:auto;
}
.paper-abstract p:last-child{margin-bottom:0}
.paper-abstract em{font-style:italic;color:var(--blue-mid)}

/* Separator line when open */
.paper-abstract.is-open{
  border-top:1px solid var(--border);
  padding-top:.85rem;margin-top:.85rem;
}

/* ══ PAPER CARDS ACCORDION (override) ══ */
.paper-card{border-radius:var(--r-sm);border:1px solid var(--border);padding:1.1rem 1.25rem;background:var(--white);transition:border-color .2s,box-shadow .2s,background .2s;border-left:4px solid transparent;box-shadow:var(--sh1);cursor:pointer}
.paper-card:hover{border-left-color:var(--yellow);background:linear-gradient(to right,#FFFDF5,var(--white) 40%);box-shadow:var(--sh2)}
.paper-card.is-open{border-left-color:var(--blue);background:linear-gradient(to right,var(--blue-pale),var(--white) 50%);box-shadow:var(--sh2)}
.paper-card.hidden-by-search{display:none}
.card-header{display:flex;align-items:flex-start;gap:.75rem}
.card-header .flex-1{min-width:0}
.cd-chevron{flex-shrink:0;width:30px;height:30px;border-radius:50%;background:var(--blue-pale);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:800;transition:transform .28s cubic-bezier(.4,0,.2,1),background .2s,color .2s;user-select:none;margin-top:.1rem}
.paper-card.is-open .cd-chevron{transform:rotate(90deg);background:var(--blue);color:#fff}
.paper-abstract{overflow:hidden;max-height:0;transition:max-height .38s cubic-bezier(.4,0,.2,1),opacity .28s ease,padding-top .3s,margin-top .3s;opacity:0;border-top:0 solid var(--border);padding-top:0;margin-top:0}
.paper-abstract.is-open{opacity:1;border-top-width:1px;padding-top:.85rem;margin-top:.85rem}
.paper-abstract p{font-size:.83rem;line-height:1.78;color:#374151;margin-bottom:.6rem;text-align:justify;hyphens:auto}
.paper-abstract p:last-child{margin-bottom:0}
.paper-abstract em{font-style:italic;color:var(--blue-mid)}

@media print{.paper-abstract{max-height:none!important;opacity:1!important;display:block!important}}

/* ══ DEVELOPER CREDIT CARD ══ */
.dev-credit-card{
  display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
  background:linear-gradient(135deg,rgba(255,180,0,.12) 0%,rgba(255,180,0,.04) 100%);
  border:1px solid rgba(255,180,0,.28);
  border-radius:16px;
  padding:1.2rem 1.5rem;
  margin-bottom:1.5rem;
  transition:all .25s;
  position:relative;overflow:hidden;
}
.dev-credit-card::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,180,0,.06),transparent);
  transform:translateX(-100%);
  transition:transform .6s;
}
.dev-credit-card:hover::before{transform:translateX(100%)}
.dev-credit-card:hover{
  border-color:rgba(255,180,0,.5);
  box-shadow:0 8px 32px rgba(255,180,0,.15);
}
.dev-avatar{
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--yellow),var(--yellow-dk));
  color:var(--dark);font-family:'Sora',sans-serif;
  font-weight:800;font-size:1.1rem;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  box-shadow:0 4px 16px rgba(255,180,0,.4);
}
.dev-info{flex:1;min-width:0}
.dev-label{
  font-size:.62rem;font-weight:700;letter-spacing:.15em;
  text-transform:uppercase;color:rgba(255,255,255,.4);
  margin-bottom:.2rem;
}
.dev-name{
  font-family:'Sora',sans-serif;font-size:1.05rem;
  font-weight:800;color:#fff;line-height:1.2;
}
.dev-title{
  font-size:.72rem;color:var(--yellow-lt);
  font-weight:500;margin-top:.15rem;
}
.dev-wa-btn{
  display:inline-flex;align-items:center;gap:.5rem;
  background:#25D366;color:#fff;
  font-family:'Sora',sans-serif;font-weight:700;
  font-size:.78rem;padding:.6rem 1.2rem;
  border-radius:100px;text-decoration:none;
  transition:transform .2s,box-shadow .2s;
  white-space:nowrap;flex-shrink:0;
  box-shadow:0 4px 16px rgba(37,211,102,.35);
}
.dev-wa-btn:hover{transform:scale(1.06);box-shadow:0 6px 24px rgba(37,211,102,.5)}
.dev-wa-icon{width:18px;height:18px;flex-shrink:0}

@media(max-width:480px){
  .dev-credit-card{flex-direction:column;text-align:center;gap:.85rem}
  .dev-info{text-align:center}
  .dev-wa-btn{align-self:center}
}

/* ════════════════════════════════════════════════════════════════
   PDF DOWNLOAD — Hero button + Banner section
   ════════════════════════════════════════════════════════════════ */

/* ── Hero PDF button ── */
.pdf-hero-btn{
  display:inline-flex;align-items:center;gap:.55rem;
  background:linear-gradient(135deg,#E53E3E,#C53030);
  color:#fff;
  font-family:'Sora',sans-serif;font-weight:800;
  font-size:.82rem;letter-spacing:.02em;
  padding:.72rem 1.4rem;
  border-radius:100px;
  text-decoration:none;
  border:2px solid rgba(255,255,255,.25);
  transition:transform .2s,box-shadow .2s;
  box-shadow:0 4px 20px rgba(197,48,48,.45);
}
.pdf-hero-btn svg{width:17px;height:17px;flex-shrink:0}
.pdf-hero-btn:hover{
  transform:scale(1.06) translateY(-1px);
  box-shadow:0 8px 28px rgba(197,48,48,.6);
}
@keyframes pulseRing{
  0%  {box-shadow:0 4px 20px rgba(197,48,48,.45),0 0 0 0 rgba(229,62,62,.5)}
  70% {box-shadow:0 4px 20px rgba(197,48,48,.45),0 0 0 10px rgba(229,62,62,0)}
  100%{box-shadow:0 4px 20px rgba(197,48,48,.45),0 0 0 0 rgba(229,62,62,0)}
}
.pdf-hero-btn.pulse-ring{animation:pulseRing 2.2s ease-out infinite}

/* ── PDF Banner section ── */
#pdf-section{padding:clamp(2rem,5vw,3.5rem) clamp(1rem,4vw,2rem)}

.pdf-banner-inner{
  max-width:900px;margin:0 auto;
  display:flex;align-items:center;
  justify-content:space-between;
  gap:clamp(1.5rem,4vw,3rem);
  flex-wrap:wrap;
  position:relative;z-index:1;
}

.pdf-banner-left{
  display:flex;align-items:center;
  gap:clamp(1rem,3vw,1.75rem);
  flex:1;min-width:0;
}

.pdf-icon-wrap{
  width:clamp(52px,8vw,72px);
  height:clamp(52px,8vw,72px);
  border-radius:16px;
  background:rgba(255,255,255,.12);
  border:2px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  backdrop-filter:blur(4px);
}
.pdf-icon-wrap svg{
  width:clamp(26px,4vw,36px);
  height:clamp(26px,4vw,36px);
}

.pdf-banner-label{
  font-size:clamp(.58rem,1.3vw,.68rem);
  font-weight:800;letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--yellow-lt);
  margin-bottom:.3rem;
}
.pdf-banner-title{
  font-family:'Sora',sans-serif;
  font-size:clamp(1rem,2.8vw,1.5rem);
  font-weight:800;color:#fff;
  line-height:1.15;margin-bottom:.4rem;
}
.pdf-banner-sub{
  font-size:clamp(.7rem,1.4vw,.82rem);
  color:rgba(255,255,255,.55);line-height:1.5;
}

/* ── Big download button ── */
.pdf-dl-btn{
  display:inline-flex;align-items:center;gap:.65rem;
  background:#fff;
  color:#C53030;
  font-family:'Sora',sans-serif;font-weight:800;
  font-size:clamp(.82rem,1.8vw,.95rem);
  padding:clamp(.8rem,2vw,1rem) clamp(1.5rem,3.5vw,2.2rem);
  border-radius:100px;
  text-decoration:none;
  white-space:nowrap;flex-shrink:0;
  transition:transform .2s,box-shadow .2s;
  box-shadow:0 6px 28px rgba(0,0,0,.2);
}
.pdf-dl-btn svg{
  width:clamp(18px,2.5vw,22px);
  height:clamp(18px,2.5vw,22px);
  flex-shrink:0;
}
.pdf-dl-btn:hover{
  transform:scale(1.06) translateY(-2px);
  box-shadow:0 10px 36px rgba(0,0,0,.3);
}
.pdf-dl-btn:active{transform:scale(.97)}

/* ── Mobile ── */
@media(max-width:600px){
  .pdf-banner-inner{flex-direction:column;text-align:center;align-items:center}
  .pdf-banner-left{flex-direction:column;text-align:center;gap:.75rem}
  .pdf-hero-btn{font-size:.75rem;padding:.62rem 1.1rem}
}

/* 6th mobile nav item (PDF) */
.mob-item[style*="E53E3E"] { color:#E53E3E !important; }
.mob-item[style*="E53E3E"].active { color:#C53030 !important; }
/* Ensure 6 items fit on small screens */
@media(max-width:380px){ .mob-item { font-size:.44rem !important; } }