/* ═══════════════════════════════════════════════════════
   PULS 2026 — brochure-matched stylesheet
   Blues sampled from brochure: #0f1e45 (bg), #f2eb28 (yellow)
   ═══════════════════════════════════════════════════════ */
:root {
  --bg:        #0f1e45;   /* sampled from brochure */
  --bg-1:      #172454;
  --bg-2:      #1e2e65;
  --bg-3:      #253578;
  --yellow:    #f2eb29;
  --yellow-d:  #d4cd1a;
  --cyan:      #4dc4f5;
  --cyan-d:    #2aa8df;
  --mid:       #5b6da0;
  --cream:     #f0eada;
  --muted:     #8fa3cc;
  --dim:       #5a70a0;
  --white:     #ffffff;
  --rule:      rgba(242,235,41,0.18);
  --rule2:     rgba(77,196,245,0.18);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Manrope',system-ui,sans-serif;
  font-size:16px;line-height:1.7;
  color:var(--cream);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
::selection{background:var(--yellow);color:var(--bg)}
.container{max-width:1200px;margin:0 auto;padding:0 36px;position:relative;z-index:1}
.container-sm{max-width:900px;margin:0 auto;padding:0 36px;position:relative;z-index:1}
@media(max-width:768px){.container,.container-sm{padding:0 20px}}
section{padding:96px 0;position:relative}
@media(max-width:768px){section{padding:64px 0}}
h1,h2,h3,h4{font-family:'Oswald',sans-serif;font-weight:700;line-height:1.1;color:var(--white);letter-spacing:0.02em;text-transform:uppercase}
h1{font-size:clamp(2.8rem,7vw,5.5rem)}
h2{font-size:clamp(2rem,4vw,3rem)}
h3{font-size:clamp(1.3rem,2.5vw,2rem)}
h4{font-size:1.1rem}
.script{font-family:'Dancing Script',cursive;font-style:normal;font-weight:600;text-transform:none;letter-spacing:0}
.accent{color:var(--yellow)}
p{font-size:1rem;line-height:1.75;color:var(--muted)}
.lead{font-size:1.2rem;line-height:1.6;color:var(--cream);font-weight:400}

/* eyebrow */
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:0.7rem;font-weight:700;letter-spacing:0.28em;text-transform:uppercase;color:var(--cyan)}
.eyebrow::before{content:'';width:28px;height:1px;background:var(--cyan)}

/* ─── NAV ─── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(15,30,69,0.82);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s}
nav.scrolled{border-bottom-color:var(--rule)}
.nav-inner{max-width:1200px;margin:0 auto;padding:12px 36px;
  display:flex;justify-content:space-between;align-items:center;gap:24px}
@media(max-width:768px){.nav-inner{padding:12px 20px}}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.nav-brand img{height:38px;width:auto;border-radius:50%;filter:drop-shadow(0 1px 4px rgba(0,0,0,.3))}
.nav-brand span{font-family:'Oswald',sans-serif;font-weight:700;font-size:1.1rem;color:var(--white);letter-spacing:0.08em}
.nav-brand span em{color:var(--yellow);font-style:normal}
.nav-links{display:flex;gap:24px;list-style:none;align-items:center}
.nav-links a{font-size:.8rem;font-weight:600;color:var(--muted);text-decoration:none;letter-spacing:.06em;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--yellow)}
.nav-cta{background:var(--yellow) !important;color:var(--bg) !important;padding:9px 20px;border-radius:2px;font-size:.75rem;font-weight:700;letter-spacing:.1em}
.nav-cta:hover{background:var(--white) !important}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:6px}
.hamburger span{display:block;width:22px;height:2px;background:var(--white);margin:4px 0}
@media(max-width:960px){
  .nav-links{display:none}.hamburger{display:block}
  .nav-links.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--bg);padding:20px;gap:16px;border-bottom:1px solid var(--rule)}
}

/* ─── HERO ─── */
.hero{min-height:100vh;padding-top:110px;display:flex;align-items:center;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse 60% 70% at 15% 30%,rgba(77,196,245,.2) 0%,transparent 55%),radial-gradient(ellipse 50% 50% at 85% 70%,rgba(37,53,120,.6) 0%,transparent 55%);pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:70px 70px;mask-image:radial-gradient(ellipse at 50% 50%,black 30%,transparent 75%);pointer-events:none}

.hero-inner{position:relative;z-index:1;width:100%;text-align:center}

/* Three logos at top of hero */
.hero-logos{display:flex;align-items:center;justify-content:center;gap:40px;margin-bottom:28px;flex-wrap:wrap}
.hero-logos img{height:80px;width:auto;filter:drop-shadow(0 2px 12px rgba(0,0,0,.5))}
.hero-logos img.bos-logo{height:80px}
.hero-logos img.biprag-logo{height:58px}

/* Aegis badge */
.hero-aegis{display:inline-block;border:1px solid rgba(255,255,255,.3);border-radius:30px;padding:6px 20px;font-size:.75rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.85);margin-bottom:28px}

/* Main title */
.hero-title{font-family:'Oswald',sans-serif;font-weight:700;font-size:clamp(2.8rem,8vw,6rem);line-height:1.0;color:var(--white);letter-spacing:.04em;text-transform:uppercase;margin-bottom:0}
.hero-title .year{color:var(--yellow);font-size:clamp(3.5rem,10vw,7.5rem);display:block;line-height:.9;margin-top:-4px}

.hero-tagline{font-family:'Dancing Script',cursive;font-weight:600;font-size:clamp(1.5rem,3.5vw,2.5rem);color:var(--yellow);margin:20px 0 44px;text-shadow:0 0 30px rgba(242,235,41,.3)}

.hero-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:0;margin-bottom:44px}
.hero-meta-item{padding:0 40px;border-right:1px solid var(--rule)}
.hero-meta-item:last-child{border-right:none}
.hero-meta-item h5{font-family:'Manrope',sans-serif;font-size:.65rem;font-weight:700;letter-spacing:.25em;text-transform:uppercase;color:var(--cyan);margin-bottom:8px}
.hero-meta-item p{font-family:'Oswald',sans-serif;font-size:1.2rem;font-weight:400;color:var(--white);text-transform:uppercase;letter-spacing:.05em;line-height:1.3}
@media(max-width:600px){.hero-meta-item{padding:16px 20px;border-right:none;border-bottom:1px solid var(--rule)}.hero-meta-item:last-child{border-bottom:none}}

/* Hands image at bottom of hero */
.hero-hands{position:absolute;bottom:0;left:0;right:0;height:200px;background:url('images/hands.jpg') center/cover;mask-image:linear-gradient(to bottom,transparent 0%,rgba(0,0,0,.5) 50%,rgba(0,0,0,.8) 100%);-webkit-mask-image:linear-gradient(to bottom,transparent 0%,rgba(0,0,0,.5) 50%,rgba(0,0,0,.8) 100%);pointer-events:none}

/* ─── BUTTONS ─── */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;font-family:'Oswald',sans-serif;font-size:.85rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;border-radius:2px;border:1px solid transparent;cursor:pointer;transition:all .25s}
.btn-primary{background:var(--yellow);color:var(--bg);box-shadow:0 8px 24px rgba(242,235,41,.2)}
.btn-primary:hover{background:var(--white);transform:translateY(-2px);box-shadow:0 12px 32px rgba(242,235,41,.35)}
.btn-outline{background:transparent;color:var(--white);border-color:rgba(255,255,255,.3)}
.btn-outline:hover{border-color:var(--yellow);color:var(--yellow)}
.btn .arr{transition:transform .25s}
.btn:hover .arr{transform:translateX(4px)}

/* ─── TOPICS SECTION ─── */
.topics-section{background:var(--bg-1);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.section-header{text-align:center;margin-bottom:56px}
.section-header .eyebrow{justify-content:center;margin-bottom:14px}
.section-header .eyebrow::after{content:'';width:28px;height:1px;background:var(--cyan)}
.section-header h2{margin-bottom:16px}
.section-header p{max-width:600px;margin:0 auto}

.topics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--rule)}
@media(max-width:900px){.topics-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:500px){.topics-grid{grid-template-columns:1fr}}
.topic-card{background:var(--bg-1);padding:32px 28px;text-decoration:none;display:flex;flex-direction:column;gap:14px;min-height:200px;position:relative;transition:background .25s}
.topic-card:hover{background:var(--bg-2)}
.topic-card .tc-num{font-family:'Oswald',sans-serif;font-size:1rem;font-weight:400;color:var(--yellow);letter-spacing:.1em}
.topic-card .tc-name{font-family:'Oswald',sans-serif;font-size:1.3rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.04em;line-height:1.2;flex:1}
.topic-card .tc-arr{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);font-weight:700;display:flex;align-items:center;gap:8px;transition:gap .25s}
.topic-card:hover .tc-arr{gap:14px;color:var(--yellow)}
.topic-card::before{content:'';position:absolute;top:0;left:0;width:0;height:3px;background:var(--yellow);transition:width .3s}
.topic-card:hover::before{width:100%}

/* ─── PROGRAMME ─── */
.programme{background:var(--bg)}
.day-tabs{display:flex;justify-content:center;border-bottom:1px solid var(--rule);margin-bottom:56px}
.day-tab{background:none;border:none;padding:16px 36px;font-family:'Oswald',sans-serif;font-size:.9rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);cursor:pointer;position:relative;transition:color .2s}
.day-tab:hover,.day-tab.active{color:var(--white)}
.day-tab.active::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:3px;background:var(--yellow)}
.day-panel{display:none}.day-panel.active{display:block}

.session-block{margin-bottom:60px}
.session-head{display:flex;align-items:baseline;gap:20px;padding-bottom:14px;border-bottom:1px solid var(--rule);margin-bottom:6px}
.session-time{font-family:'Oswald',sans-serif;font-size:1.4rem;font-weight:400;color:var(--yellow);min-width:180px;letter-spacing:.04em}
.session-name{font-family:'Oswald',sans-serif;font-size:1.4rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.04em;flex:1}
.session-fmt{font-size:.65rem;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);font-weight:700}
.session-link-sm{font-size:.7rem;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan);font-weight:700;text-decoration:none;transition:color .2s}
.session-link-sm:hover{color:var(--yellow)}

.talk-list{list-style:none}
.talk{display:grid;grid-template-columns:140px 1fr 220px;gap:20px;padding:14px 0;border-bottom:1px dashed rgba(242,235,41,.09);align-items:start}
.talk:last-child{border-bottom:none}
.talk-t{font-size:.82rem;color:var(--dim);font-weight:600;letter-spacing:.03em;padding-top:3px}
.talk-topic{font-size:1rem;color:var(--white);line-height:1.45}
.talk-spk{font-size:.9rem;color:var(--muted);font-style:italic}
.tentative{font-style:normal;font-size:.65rem;letter-spacing:.15em;text-transform:uppercase;color:var(--yellow);margin-left:8px;font-weight:700}
@media(max-width:768px){.talk{grid-template-columns:1fr;gap:4px;padding:12px 0}.talk-t{color:var(--yellow);font-size:.8rem}}

.impact-row{background:var(--bg-2);border-left:4px solid var(--yellow);padding:20px 24px;margin:14px 0;display:grid;grid-template-columns:140px 1fr 220px;gap:20px;align-items:start}
.impact-row .impact-tag{font-size:.65rem;letter-spacing:.2em;text-transform:uppercase;color:var(--yellow);font-weight:700;margin-bottom:6px;font-style:normal;display:block}
.impact-row .talk-topic{font-style:italic;font-size:1.05rem}
@media(max-width:768px){.impact-row{grid-template-columns:1fr;gap:6px;padding:16px}}

.break-row{text-align:center;padding:12px 0;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;font-weight:700;color:var(--dim)}
.break-row::before,.break-row::after{content:'';display:inline-block;width:20px;height:1px;background:var(--cyan);vertical-align:middle;margin:0 14px}

/* ─── SPEAKERS ─── */
.speakers{background:var(--bg-1);border-top:1px solid var(--rule)}
.featured-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:28px;margin-bottom:72px}
.fsp{background:var(--bg-2);border:1px solid rgba(242,235,41,.1);padding:32px;display:flex;flex-direction:column;transition:all .3s;position:relative;overflow:hidden}
.fsp::before{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--yellow),var(--cyan));transform:scaleX(0);transform-origin:left;transition:transform .4s}
.fsp:hover{border-color:rgba(242,235,41,.3);transform:translateY(-3px)}.fsp:hover::before{transform:scaleX(1)}
.fsp-top{display:flex;gap:18px;align-items:flex-start;margin-bottom:18px}
.fsp-avatar{width:64px;height:64px;border-radius:50%;background:var(--bg-3);border:2px solid var(--yellow);display:flex;align-items:center;justify-content:center;color:var(--yellow);font-family:'Oswald',sans-serif;font-size:1.2rem;font-weight:700;flex-shrink:0}
.fsp-meta .fsp-role{font-size:.65rem;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:4px}
.fsp-meta .fsp-name{font-family:'Oswald',sans-serif;font-size:1.25rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.04em;line-height:1.1}
.fsp-meta .fsp-quals{font-size:.75rem;color:var(--muted);margin-top:3px}
.fsp-affil{font-size:.875rem;color:var(--muted);font-style:italic;margin-bottom:14px;line-height:1.45}
.fsp-bio{font-size:.93rem;color:var(--cream);line-height:1.7;flex:1;margin-bottom:18px}
.fsp-talk{padding-top:16px;border-top:1px solid var(--rule)}
.fsp-talk .lbl{font-size:.65rem;letter-spacing:.22em;text-transform:uppercase;color:var(--yellow);font-weight:700;display:block;margin-bottom:5px}
.fsp-talk .ttl{font-style:italic;color:var(--cream);font-size:1rem;line-height:1.4}

/* Faculty roster */
.faculty-header{display:flex;align-items:center;gap:20px;margin-bottom:28px;border-bottom:1px solid var(--rule);padding-bottom:16px}
.faculty-header h3{font-family:'Oswald',sans-serif;font-size:1.6rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.05em}
.faculty-header span{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);font-weight:700}
.faculty-roster{columns:3;column-gap:40px}
@media(max-width:900px){.faculty-roster{columns:2}}
@media(max-width:500px){.faculty-roster{columns:1}}
.fr-name{font-size:1rem;color:var(--cream);padding:9px 0;border-bottom:1px solid rgba(255,255,255,.06);break-inside:avoid;transition:color .2s,padding-left .2s}
.fr-name:hover{color:var(--yellow);padding-left:6px}

/* ─── COMMITTEE ─── */
.committee{background:var(--bg)}
.committee-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:56px}
@media(max-width:768px){.committee-grid{grid-template-columns:1fr;gap:40px}}
.member{text-align:center}
.member-photo{width:170px;height:170px;border-radius:50%;margin:0 auto 22px;background-size:cover;background-position:center top;border:3px solid var(--yellow);box-shadow:0 0 0 1px rgba(242,235,41,.2),0 12px 32px rgba(0,0,0,.45)}
.member-role{font-size:.65rem;letter-spacing:.28em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:8px}
.member-name{font-family:'Oswald',sans-serif;font-size:1.4rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.05em;margin-bottom:14px}
.member-contacts{display:flex;flex-direction:column;gap:5px;align-items:center}
.member-contacts a{color:var(--muted);text-decoration:none;font-size:.92rem;transition:color .2s}
.member-contacts a:hover{color:var(--yellow)}

/* ─── REGISTRATION ─── */
.registration{background:var(--bg-1);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.reg-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
@media(max-width:900px){.reg-grid{grid-template-columns:1fr;gap:40px}}
.reg-left h2{margin:14px 0 22px}
.reg-left p{margin-bottom:18px}
.reg-card{background:linear-gradient(140deg,var(--bg-3),var(--bg-2));border:1px solid rgba(242,235,41,.4);padding:40px;border-radius:3px;box-shadow:0 8px 40px rgba(0,0,0,.4)}
.reg-tag{font-size:.68rem;letter-spacing:.28em;text-transform:uppercase;color:var(--yellow);font-weight:700;margin-bottom:12px}
.reg-price{font-family:'Oswald',sans-serif;font-size:4.5rem;font-weight:400;color:var(--white);line-height:1;margin-bottom:5px;letter-spacing:-.01em}
.reg-price .cur{font-size:1.8rem;color:var(--yellow);vertical-align:super;margin-right:6px}
.reg-sub{font-family:'Dancing Script',cursive;font-size:1.2rem;color:var(--yellow);margin-bottom:28px}
.inc-list{list-style:none;margin:24px 0}
.inc-list li{padding:9px 0;border-bottom:1px solid rgba(242,235,41,.08);display:flex;align-items:center;gap:12px;font-size:.93rem;color:var(--cream)}
.inc-list li::before{content:'';width:6px;height:6px;background:var(--yellow);border-radius:50%;flex-shrink:0}
.reg-actions{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.reg-actions .btn{justify-content:center}
.qr-row{display:grid;grid-template-columns:120px 1fr;gap:18px;margin-top:24px;padding:18px;background:rgba(242,235,41,.04);border:1px solid var(--rule);border-radius:2px;align-items:center}
.qr-row img{width:120px;height:120px;border-radius:3px;background:white;padding:5px;display:block}
.qr-txt .ql{font-size:.65rem;letter-spacing:.22em;text-transform:uppercase;color:var(--yellow);font-weight:700;margin-bottom:5px}
.qr-txt h4{font-family:'Oswald',sans-serif;font-size:1rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px}
.qr-txt p{font-size:.82rem;color:var(--muted);line-height:1.4}
@media(max-width:480px){.qr-row{grid-template-columns:1fr;text-align:center}.qr-row img{margin:0 auto}}

/* ─── VENUE ─── */
.venue{background:var(--bg-2);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.venue-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:64px;align-items:center}
@media(max-width:900px){.venue-grid{grid-template-columns:1fr;gap:32px}}
.venue-left h2{margin:14px 0 22px}
.venue-facts{margin-top:28px;padding-top:28px;border-top:1px solid var(--rule)}
.vf-row{display:grid;grid-template-columns:110px 1fr;gap:20px;margin-bottom:14px;align-items:baseline}
.vf-row .lbl{font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--yellow);font-weight:700}
.vf-row .val{font-family:'Oswald',sans-serif;font-size:1rem;font-weight:400;color:var(--white);letter-spacing:.03em}
.venue-map{width:100%;height:380px;border:1px solid rgba(242,235,41,.3);border-radius:2px;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.4);filter:invert(.9) hue-rotate(185deg) saturate(.75) brightness(.9)}
.venue-map iframe{width:100%;height:100%;border:0}

/* ─── PARTNERS ─── */
.partners{background:var(--bg)}
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:60px 0 48px}
@media(max-width:900px){.tiers{grid-template-columns:1fr}}
.tier{background:var(--bg-1);border:1px solid var(--rule);padding:36px 32px;display:flex;flex-direction:column}
.tier.featured{border-color:var(--yellow);background:var(--bg-2);transform:translateY(-8px);position:relative}
.tier.featured::before{content:'MOST POPULAR';position:absolute;top:-11px;left:32px;background:var(--yellow);color:var(--bg);font-size:.65rem;font-weight:700;letter-spacing:.18em;padding:4px 12px;border-radius:2px}
.tier-name{font-family:'Oswald',sans-serif;font-size:1.6rem;font-weight:700;color:var(--yellow);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.tier-sub{font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);font-weight:700;margin-bottom:24px}
.tier-price{font-family:'Oswald',sans-serif;font-size:2.6rem;font-weight:400;color:var(--white);line-height:1;margin-bottom:4px}
.tier-price .cur{font-size:1.2rem;color:var(--yellow);vertical-align:super;margin-right:4px}
.tier-gst{font-size:.82rem;color:var(--dim);margin-bottom:24px}
.tier-feats{list-style:none;padding-top:20px;border-top:1px solid var(--rule);flex:1}
.tier-feats li{padding:8px 0;font-size:.93rem;color:var(--cream);display:flex;gap:10px;align-items:flex-start;line-height:1.5}
.tier-feats li::before{content:'✓';color:var(--yellow);font-weight:700;flex-shrink:0}
.partners-cta{text-align:center;padding:52px 32px;background:var(--bg-1);border:1px solid var(--rule);border-radius:2px}
.partners-cta h3{margin-bottom:12px}.partners-cta p{max-width:520px;margin:0 auto 24px}
.confirmed-area{margin-top:48px;padding-top:40px;border-top:1px solid var(--rule);text-align:center}
.conf-lbl{font-size:.68rem;letter-spacing:.28em;text-transform:uppercase;color:var(--dim);font-weight:700;margin-bottom:28px}
.conf-logos{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;opacity:.5}
.conf-logos .ph{width:160px;height:72px;background:var(--bg-2);border:1px dashed var(--rule);border-radius:2px;display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--dim);letter-spacing:.1em}

/* ─── ABSTRACT CTA ─── */
.abstracts{padding:88px 0;text-align:center;background:var(--bg-2);border-top:1px solid var(--rule)}
.abstracts .eyebrow{justify-content:center;margin-bottom:14px}
.abstracts .eyebrow::after{content:'';width:28px;height:1px;background:var(--cyan)}
.abstracts h2{margin-bottom:20px;max-width:700px;margin-left:auto;margin-right:auto}
.abstracts .lead{max-width:620px;margin:0 auto 36px}

/* ─── FOOTER ─── */
footer{background:var(--bg);padding:80px 0 32px;border-top:1px solid var(--rule)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:56px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:540px){.footer-grid{grid-template-columns:1fr}}
.footer-col h4{font-family:'Oswald',sans-serif;font-size:.75rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--yellow);margin-bottom:18px}
.footer-col p,.footer-col a,.footer-col li{color:var(--muted);font-size:.92rem;line-height:1.7;text-decoration:none;list-style:none}
.footer-col a:hover{color:var(--yellow)}.footer-col ul li{margin-bottom:7px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand img{height:48px;width:auto;border-radius:50%;filter:drop-shadow(0 1px 4px rgba(0,0,0,.3))}
.footer-brand span{font-family:'Oswald',sans-serif;font-size:1.5rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.06em}
.footer-brand em{color:var(--yellow);font-style:normal}
.footer-tagline{font-family:'Dancing Script',cursive;font-size:1.1rem;color:var(--yellow);margin-bottom:18px}
.footer-bottom{border-top:1px solid var(--rule);padding-top:28px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.78rem;color:var(--dim)}

/* Mobile register bar */
.mob-reg{display:none;position:fixed;bottom:12px;left:12px;right:12px;z-index:50;background:var(--yellow);color:var(--bg);text-align:center;padding:13px;border-radius:2px;font-family:'Oswald',sans-serif;font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.85rem;text-decoration:none;box-shadow:0 8px 24px rgba(0,0,0,.5)}
@media(max-width:768px){.mob-reg{display:block}}

/* Animations */
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
.fade-up{opacity:0;animation:fadeUp .8s ease forwards}
.delay-1{animation-delay:.15s}.delay-2{animation-delay:.3s}.delay-3{animation-delay:.45s}.delay-4{animation-delay:.6s}.delay-5{animation-delay:.75s}

/* ═══════════════════════════════════════════════
   TOPIC PAGES
   ═══════════════════════════════════════════════ */
.topic-hero{padding:130px 0 80px;position:relative;overflow:hidden}
.topic-hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse 55% 65% at 15% 35%,rgba(77,196,245,.18) 0%,transparent 55%),radial-gradient(ellipse 40% 40% at 85% 65%,rgba(242,235,41,.07) 0%,transparent 55%)}
.topic-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:auto 1fr;gap:48px;align-items:start}
@media(max-width:900px){.topic-hero-inner{grid-template-columns:1fr;gap:20px}}
.topic-num{font-family:'Oswald',sans-serif;font-weight:700;font-size:clamp(7rem,16vw,12rem);line-height:.88;color:transparent;-webkit-text-stroke:2px var(--yellow);letter-spacing:-.03em}
.topic-content .breadcrumb{display:flex;gap:8px;align-items:center;margin-bottom:20px;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);font-weight:700}
.topic-content .breadcrumb a{color:var(--dim);text-decoration:none;transition:color .2s}.topic-content .breadcrumb a:hover{color:var(--yellow)}
.topic-content .breadcrumb .sep{color:var(--yellow)}
.topic-content h1{font-size:clamp(2.4rem,6vw,5rem);margin-bottom:20px}
.topic-content h1 .accent{color:var(--yellow)}
.topic-content .lead{margin-bottom:32px}
.topic-kf{display:flex;flex-wrap:wrap;gap:0;margin-top:32px;padding-top:32px;border-top:1px solid var(--rule)}
.kf-item{padding:0 32px;border-right:1px solid var(--rule)}
.kf-item:first-child{padding-left:0}.kf-item:last-child{border-right:none}
.kf-item h5{font-size:.65rem;letter-spacing:.25em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:6px}
.kf-item p{font-family:'Oswald',sans-serif;font-size:1.1rem;font-weight:400;color:var(--white);text-transform:uppercase;letter-spacing:.04em}
@media(max-width:600px){.kf-item{padding:14px 0;border-right:none;border-bottom:1px solid var(--rule)}.kf-item:last-child{border-bottom:none}}

.topic-body{background:var(--bg-1);border-top:1px solid var(--rule);padding:80px 0 100px}
.topic-overview-grid{display:grid;grid-template-columns:1fr 2fr;gap:64px;margin-bottom:72px}
@media(max-width:900px){.topic-overview-grid{grid-template-columns:1fr;gap:24px}}
.topic-overview-label{font-family:'Oswald',sans-serif;font-size:1.3rem;font-weight:700;color:var(--yellow);text-transform:uppercase;letter-spacing:.05em;line-height:1.2;padding-top:4px}
.topic-overview-text p{color:var(--cream);font-size:1.02rem;line-height:1.75}
.topic-overview-text p+p{margin-top:18px}
.topic-overview-text a{color:var(--cyan);text-decoration:none}
.topic-overview-text a:hover{color:var(--yellow)}

.topic-section-title{font-family:'Oswald',sans-serif;font-size:1.8rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.05em;margin-bottom:28px;padding-bottom:14px;border-bottom:1px solid var(--rule);display:flex;align-items:baseline;gap:16px}
.topic-section-title .tn{color:var(--yellow);font-weight:400;font-size:1.2rem}

.topic-spk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:28px}
.ts-card{background:var(--bg-2);padding:26px;border:1px solid var(--rule);transition:all .3s}
.ts-card:hover{border-color:rgba(242,235,41,.3);transform:translateY(-3px)}
.ts-card .tsn{font-family:'Oswald',sans-serif;font-size:1.15rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px}
.ts-card .tsa{font-size:.85rem;color:var(--muted);font-style:italic;margin-bottom:14px;line-height:1.4}
.ts-card .tst{padding-top:12px;border-top:1px solid var(--rule);font-style:italic;font-size:.93rem;color:var(--cream);line-height:1.45}
.ts-card .tst .tsl{display:block;font-style:normal;font-size:.65rem;letter-spacing:.2em;text-transform:uppercase;color:var(--yellow);font-weight:700;margin-bottom:5px}

.topic-nav{background:var(--bg);border-top:1px solid var(--rule);padding:60px 0}
.topic-nav-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:768px){.topic-nav-cards{grid-template-columns:1fr}}
.tnc{background:var(--bg-1);border:1px solid var(--rule);padding:26px;text-decoration:none;border-radius:2px;transition:all .3s}
.tnc:hover{background:var(--bg-2);border-color:rgba(242,235,41,.3)}
.tnc .dir{font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;color:var(--yellow);font-weight:700;margin-bottom:8px}
.tnc .nname{font-family:'Oswald',sans-serif;font-size:1.25rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:.05em}
.tnc.next{text-align:right}

.back-link{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--muted);font-size:.82rem;letter-spacing:.1em;font-weight:700;transition:color .2s;margin-bottom:28px}
.back-link:hover{color:var(--yellow)}