/* ═══════════════════════════════════════════════════════
   PULS 2026 — UNIFIED STYLESHEET
   Palette: Navy #0f1e45 · Teal #1a7a6e · Gold #c9a227 · Cream #f8f5ef
   Type: Fraunces (display) · Archivo (body/UI)
═══════════════════════════════════════════════════════ */

:root {
  --navy:    #0f1e45;
  --navy2:   #1a2f60;
  --teal:    #1a7a6e;
  --teal-lt: #e8f4f2;
  --gold:    #c9a227;
  --gold-lt: #f8f2de;
  --cream:   #f8f5ef;
  --offwhite:#fdfcfa;
  --text:    #1c1c2e;
  --muted:   #5a5a72;
  --border:  #ddd8cc;
  --white:   #ffffff;

  --ff-display: 'Fraunces', Georgia, serif;
  --ff-body:    'Archivo', system-ui, sans-serif;

  --wrap: 1140px;
  --r:    10px;
  --r-lg: 16px;

  --shadow-sm: 0 1px 4px rgba(15,30,69,.08);
  --shadow:    0 4px 18px rgba(15,30,69,.12);
  --shadow-lg: 0 12px 40px rgba(15,30,69,.18);
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--ff-body);font-size:16px;line-height:1.65;color:var(--text);background:var(--offwhite)}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font:inherit}

/* ── Wrap ── */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ══════════════════════ HEADER ══════════════════════ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(15,30,69,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .wrap{display:flex;align-items:center;gap:24px;height:62px}

.brand{display:flex;align-items:center;gap:10px;font-family:var(--ff-display);font-size:1.2rem;font-weight:600;color:#fff;flex-shrink:0}
.brand svg{width:36px;height:36px}
.brand .yr{font-weight:300;opacity:.75}

.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{color:rgba(255,255,255,.8);font-size:.875rem;font-weight:500;padding:6px 12px;border-radius:6px;transition:color .2s,background .2s;white-space:nowrap}
.nav a:hover,.nav a.active{color:#fff;background:rgba(255,255,255,.1)}
.nav a.cta{background:var(--gold);color:var(--navy);font-weight:700;margin-left:8px;padding:7px 18px}
.nav a.cta:hover{background:#dbb840}

.menu-btn{display:none;color:#fff;font-size:.85rem;font-weight:600;padding:7px 14px;border:1px solid rgba(255,255,255,.3);border-radius:6px}

/* ══════════════════════ PAGE HERO (inner pages) ══════════════════════ */
.page-hero{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 100%);
  padding:52px 0 44px;color:#fff;
}
.page-hero h1{font-family:var(--ff-display);font-size:clamp(2rem,4vw,2.8rem);font-weight:600;margin-bottom:10px}
.page-hero .sub{color:rgba(255,255,255,.7);font-size:1.05rem}
.crumb{font-size:.8rem;color:rgba(255,255,255,.5);margin-bottom:12px}
.crumb a{color:rgba(255,255,255,.6)}
.crumb a:hover{color:#fff}

/* ══════════════════════ HERO (homepage) ══════════════════════ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(150deg,var(--navy) 0%,#122348 55%,#0c2240 100%);
  color:#fff;padding:80px 0 72px;
}
/* subtle geometric accent */
.hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 50% at 80% 20%,rgba(201,162,39,.12) 0%,transparent 70%),
             radial-gradient(ellipse 40% 60% at 5% 80%,rgba(26,122,110,.15) 0%,transparent 60%);
  pointer-events:none;
}

.hero-inner{position:relative;z-index:1;text-align:center;max-width:780px;margin:0 auto}

/* hero logos row */
.hero-logos{
  display:flex;align-items:center;justify-content:center;gap:28px;margin-bottom:28px;flex-wrap:wrap;
}
.hero-logos img{height:56px;width:auto;filter:brightness(0) invert(1);opacity:.85;object-fit:contain}
.hero-logos .puls-mark{height:64px;opacity:1;filter:none}

.hero-aegis{
  font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--gold);margin-bottom:16px;opacity:.9;
}

.hero-title{
  font-family:var(--ff-display);
  font-size:clamp(2.2rem,5.5vw,3.6rem);
  font-weight:600;line-height:1.12;
  margin-bottom:16px;
}
.hero-title .year{
  display:block;
  font-size:.55em;font-weight:300;
  color:var(--gold);letter-spacing:.04em;margin-top:6px;
}

.hero-tagline{
  font-family:var(--ff-display);font-style:italic;font-weight:300;
  font-size:clamp(1.1rem,2.5vw,1.45rem);
  color:rgba(255,255,255,.75);margin-bottom:36px;
}

.hero-meta{
  display:flex;gap:0;justify-content:center;margin-bottom:40px;flex-wrap:wrap;
}
.hero-meta-item{
  padding:16px 28px;border-right:1px solid rgba(255,255,255,.12);
}
.hero-meta-item:last-child{border-right:none}
.hero-meta-item h5{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);margin-bottom:4px}
.hero-meta-item p{font-size:.95rem;color:rgba(255,255,255,.85);line-height:1.4}

.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ══════════════════════ BUTTONS ══════════════════════ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:8px;
  font-family:var(--ff-body);font-size:.9rem;font-weight:700;
  transition:transform .15s,box-shadow .15s,background .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--gold);color:var(--navy);box-shadow:0 4px 14px rgba(201,162,39,.35)}
.btn.primary:hover{background:#dbb840;box-shadow:0 6px 20px rgba(201,162,39,.45)}
.btn.ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.45)}
.btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn.navy{background:var(--navy);color:#fff}
.btn.navy:hover{background:var(--navy2)}

/* ══════════════════════ SECTIONS ══════════════════════ */
.block{padding:64px 0}
.block.tint{background:var(--cream)}
.block.dark{background:var(--navy);color:#fff}

.eyebrow{
  display:block;font-size:.72rem;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:var(--teal);margin-bottom:10px;
}
.block.dark .eyebrow{color:var(--gold)}

h2{font-family:var(--ff-display);font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:600;line-height:1.2;margin-bottom:18px}
h3{font-family:var(--ff-display);font-size:1.25rem;font-weight:600;margin-bottom:8px}

.section-intro{max-width:600px;color:var(--muted);font-size:1.05rem;line-height:1.7;margin-bottom:40px}

/* ══════════════════════ GRID ══════════════════════ */
.grid{display:grid;gap:24px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}

/* ══════════════════════ CARD ══════════════════════ */
.card{
  background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow-sm);
}

/* ══════════════════════ HOMEPAGE: COUNTDOWN STRIP ══════════════════════ */
.countdown-strip{
  background:var(--gold);padding:14px 0;text-align:center;
}
.countdown-strip .inner{
  display:flex;align-items:center;justify-content:center;gap:32px;flex-wrap:wrap;
}
.countdown-strip .label{font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--navy);opacity:.7}
.countdown-nums{display:flex;gap:20px}
.cnum{text-align:center}
.cnum .n{display:block;font-family:var(--ff-display);font-size:1.8rem;font-weight:700;color:var(--navy);line-height:1}
.cnum .u{display:block;font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--navy);opacity:.6;margin-top:2px}

/* ══════════════════════ HOMEPAGE: TOPICS GRID ══════════════════════ */
.topics-grid{
  display:grid;gap:2px;
  grid-template-columns:repeat(4,1fr);
}
.topic-card{
  display:flex;flex-direction:column;
  background:#fff;padding:28px 22px;
  border:1px solid var(--border);
  transition:background .2s,border-color .2s,transform .2s;
  text-decoration:none;color:var(--text);
  position:relative;
}
.topic-card:hover{background:var(--navy);color:#fff;border-color:var(--navy);transform:translateY(-2px);z-index:1;box-shadow:var(--shadow)}
.topic-card .no{font-size:.72rem;font-weight:700;color:var(--teal);letter-spacing:.1em;margin-bottom:10px}
.topic-card:hover .no{color:var(--gold)}
.topic-card h3{font-family:var(--ff-display);font-size:1.05rem;font-weight:600;margin-bottom:6px;line-height:1.3}
.topic-card .meta{font-size:.82rem;color:var(--muted);line-height:1.5;flex:1}
.topic-card:hover .meta{color:rgba(255,255,255,.7)}
.topic-card .go{font-size:.8rem;font-weight:600;color:var(--teal);margin-top:16px}
.topic-card:hover .go{color:var(--gold)}

/* ══════════════════════ FEATURED FACULTY CARDS ══════════════════════ */
.fac-card{
  display:grid;grid-template-columns:100px 1fr;gap:24px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--shadow-sm);
}
.fac-card .avatar{
  width:96px;height:96px;border-radius:50%;
  background:var(--navy);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;flex-shrink:0;
}
.fac-card .avatar img{width:100%;height:100%;object-fit:cover}
.fac-card .avatar .mono{font-family:var(--ff-display);font-size:1.5rem;font-weight:600;color:#fff}
.badge{
  display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  background:var(--gold-lt);color:var(--navy);border:1px solid rgba(201,162,39,.3);
  padding:3px 10px;border-radius:20px;margin-bottom:8px;
}
.badge.intl{background:rgba(26,122,110,.1);color:var(--teal);border-color:rgba(26,122,110,.25)}
.badge.impact{background:var(--navy);color:#fff}
.fac-card .quals{font-size:.8rem;color:var(--muted);margin-bottom:4px}
.fac-card .aff{font-size:.85rem;font-weight:600;color:var(--navy);margin-bottom:10px}
.fac-card .bio{font-size:.88rem;color:var(--muted);line-height:1.6;margin-bottom:12px}
.fac-card .pres{
  font-size:.82rem;font-weight:500;
  background:var(--teal-lt);color:var(--teal);
  padding:8px 12px;border-radius:6px;
  border-left:3px solid var(--teal);
}
.fac-card .pres b{color:var(--navy)}

/* ══════════════════════ ROSTER (compact faculty list) ══════════════════════ */
.roster{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.r-card{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--r);padding:12px 14px;
  box-shadow:var(--shadow-sm);
}
.r-card .avatar{
  width:40px;height:40px;flex-shrink:0;border-radius:50%;
  background:var(--navy);display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.r-card .avatar img{width:100%;height:100%;object-fit:cover}
.r-card .avatar .mono{font-size:.65rem;font-weight:700;color:#fff}
.r-card .nm{font-size:.85rem;font-weight:600;line-height:1.3}
.r-card .af{font-size:.75rem;color:var(--muted)}

/* ══════════════════════ PROGRAMME ══════════════════════ */
.day-tabs{
  display:flex;gap:8px;margin-bottom:28px;
  border-bottom:2px solid var(--border);padding-bottom:0;
}
.day-tabs button,.day-tabs .dt{
  padding:10px 22px;font-size:.9rem;font-weight:600;color:var(--muted);
  border-radius:8px 8px 0 0;border:1px solid transparent;border-bottom:none;
  cursor:pointer;background:none;font-family:var(--ff-body);
  margin-bottom:-2px;transition:color .2s,background .2s;
}
.day-tabs button.active,.day-tabs .dt.active{
  color:var(--navy);background:#fff;border-color:var(--border);
}

.day-panel{display:none}
.day-panel.active{display:block}

.break-row{
  background:var(--cream);border:1px solid var(--border);
  padding:10px 16px;border-radius:6px;margin:10px 0;
  font-size:.82rem;font-weight:600;color:var(--muted);
  font-style:italic;
}

.session{
  border:1px solid var(--border);border-radius:var(--r);
  margin:12px 0;overflow:hidden;background:#fff;
}
.session-head{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:14px 20px;background:var(--navy);color:#fff;
}
.session-head .time{font-size:.8rem;font-weight:600;color:rgba(255,255,255,.65);white-space:nowrap;min-width:120px}
.session-head h3{font-family:var(--ff-display);font-size:1rem;font-weight:600;margin:0;flex:1}
.session-head .fmt{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);white-space:nowrap}
.topic-link{font-size:.78rem;color:rgba(255,255,255,.55);white-space:nowrap;margin-left:auto;text-decoration:underline}
.topic-link:hover{color:#fff}

.talks{padding:0}
.talks li{
  display:grid;grid-template-columns:120px 1fr auto;
  gap:10px;align-items:baseline;
  padding:10px 20px;border-bottom:1px solid var(--border);
  font-size:.875rem;
}
.talks li:last-child{border-bottom:none}
.talks li.panel-row{background:var(--cream);font-style:italic;color:var(--muted)}
.talks .t{font-size:.78rem;color:var(--muted);white-space:nowrap;font-weight:600}
.talks .who{font-size:.8rem;font-weight:600;color:var(--teal);white-space:nowrap;text-align:right}
.talks .who.tba{color:var(--muted);font-style:italic;font-weight:400}

.impact{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 100%);
  color:#fff;padding:16px 20px;border-radius:var(--r);margin:12px 0;
}
.impact .tag{
  display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  background:var(--gold);color:var(--navy);padding:3px 10px;border-radius:20px;flex-shrink:0;
}
.impact .what{flex:1}
.impact .what strong{display:block;font-size:.95rem;font-family:var(--ff-display);margin-bottom:2px}
.impact .what span{font-size:.82rem;color:rgba(255,255,255,.7)}
.impact .time{font-size:.8rem;color:rgba(255,255,255,.55);white-space:nowrap;margin-left:auto}

/* ══════════════════════ PARTNERS / TIERS ══════════════════════ */
.tier{
  border:2px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  background:#fff;display:flex;flex-direction:column;
}
.tier.gold-t,.tier.featured{border-color:var(--gold);box-shadow:0 0 0 4px rgba(201,162,39,.12);}
.tier.platinum,.tier:last-child{border-color:var(--navy)}
.tier-head{padding:28px 24px 20px;border-bottom:1px solid var(--border);background:var(--cream)}
.tier.gold-t .tier-head,.tier.featured .tier-head{background:var(--gold-lt)}
.tier.platinum .tier-head{background:var(--navy);color:#fff}
.tier .nm{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin-bottom:4px}
.tier.platinum .nm{color:var(--gold)}
.tier-head h3{font-family:var(--ff-display);font-size:1.2rem;margin-bottom:12px}
.amt{font-family:var(--ff-display);font-size:2rem;font-weight:700;color:var(--navy)}
.tier.platinum .amt{color:#fff}
.gst{font-size:.75rem;color:var(--muted);margin-top:2px}
.tier.platinum .gst{color:rgba(255,255,255,.55)}
.tier ul{padding:20px 24px;flex:1}
.tier ul li{font-size:.875rem;color:var(--muted);padding:7px 0;border-bottom:1px solid var(--border);padding-left:18px;position:relative;line-height:1.4}
.tier ul li::before{content:'✓';position:absolute;left:0;color:var(--teal);font-weight:700;font-size:.8rem}
.tier.platinum ul li::before{color:var(--gold)}
.tier ul li:last-child{border-bottom:none}

/* ══════════════════════ CTA BAND ══════════════════════ */
.cta-band{
  display:flex;align-items:center;gap:32px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);padding:32px;
}
.cta-band h2{margin-bottom:6px;font-size:1.5rem}
.cta-band p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.cta-band .btn{flex-shrink:0;margin-left:auto}

/* ══════════════════════ REGISTER PAGE ══════════════════════ */
.price-card{
  background:#fff;border:2px solid var(--navy);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--shadow);
}
.price-card .until{
  display:inline-block;background:var(--gold);color:var(--navy);
  font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  padding:4px 12px;border-radius:20px;margin-bottom:18px;
}
.price-card .amt{font-family:var(--ff-display);font-size:3rem;font-weight:700;color:var(--navy);margin-bottom:2px}
.price-card .per{font-size:.9rem;color:var(--muted);margin-bottom:22px}
.price-card ul{margin-bottom:28px}
.price-card ul li{font-size:.9rem;padding:8px 0 8px 22px;position:relative;border-bottom:1px solid var(--border);color:var(--muted)}
.price-card ul li:last-child{border-bottom:none}
.price-card ul li::before{content:'✓';position:absolute;left:0;color:var(--teal);font-weight:700}

.qr-card{display:flex;flex-direction:column;align-items:center;text-align:center}
.qr-card img{width:200px;height:200px;border-radius:var(--r);margin:16px auto;border:1px solid var(--border)}
.qr-card h3{margin-bottom:6px}

.room-table-wrap{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.room-table{width:100%;border-collapse:collapse}
.room-table th,.room-table td{padding:16px 20px;text-align:left;font-size:.92rem}
.room-table thead th{
  background:var(--navy);color:#fff;font-weight:700;
  font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;
}
.room-table tbody tr{border-top:1px solid var(--border)}
.room-table tbody tr:nth-child(even){background:var(--cream)}
.room-table td:first-child{font-weight:600;color:var(--navy)}
.room-table .rate{color:var(--teal);font-weight:700;white-space:nowrap}
.room-table .tax-note{display:block;font-size:.78rem;color:var(--muted);font-weight:400}
.room-address{font-size:.9rem;color:var(--muted);padding:16px 20px;border-top:1px solid var(--border);background:var(--cream)}
.room-address strong{color:var(--navy)}

/* ══════════════════════ VENUE ══════════════════════ */
.venue-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.map-frame{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-sm);height:380px}
.map-frame iframe{width:100%;height:100%;border:none}
.lede{font-size:1.05rem;color:var(--muted);line-height:1.7}

.kv{display:flex;flex-direction:column;gap:0}
.kv li{display:flex;gap:16px;padding:10px 0;border-bottom:1px solid var(--border);font-size:.9rem}
.kv li:last-child{border-bottom:none}
.kv .k{font-weight:700;color:var(--navy);min-width:90px;flex-shrink:0}

/* ══════════════════════ ABOUT: ORG CARDS ══════════════════════ */
.org-card{text-align:center}
.org-card .role{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin-bottom:6px}
.org-card h3{font-family:var(--ff-display);font-size:1.15rem;margin-bottom:10px}
.contact a{display:block;color:var(--teal);font-size:.88rem;margin-bottom:2px}

/* ══════════════════════ PARTNER LOGOS ══════════════════════ */
.partner-logos{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.logo-chip{
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--r);padding:14px 24px;min-width:160px;
}
.logo-chip img{max-height:50px;max-width:140px;object-fit:contain}
.partner-slot{
  display:flex;align-items:center;justify-content:center;
  background:var(--cream);border:2px dashed var(--border);
  border-radius:var(--r);padding:24px 36px;
  font-size:.8rem;color:var(--muted);min-width:160px;min-height:80px;
}

/* ══════════════════════ FOOTER ══════════════════════ */
.site-footer{
  background:var(--navy);color:rgba(255,255,255,.75);
  padding:56px 0 0;font-size:.875rem;
}
.foot-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.foot-brand svg{width:36px;height:36px}
.foot-brand span{font-family:var(--ff-display);font-size:1.1rem;font-weight:600;color:#fff}
.foot-brand .yr{font-weight:300;opacity:.6}
.foot-tag{font-size:.75rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);margin-bottom:12px}
.foot-about{font-size:.83rem;line-height:1.65;color:rgba(255,255,255,.55)}
.site-footer h4{font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.4);margin-bottom:12px}
.site-footer ul li{padding:4px 0}
.site-footer ul a{color:rgba(255,255,255,.7);transition:color .2s}
.site-footer ul a:hover{color:#fff}
.foot-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 0;font-size:.78rem;color:rgba(255,255,255,.35);flex-wrap:wrap;gap:10px;
}
.foot-bar .reg{
  background:var(--gold);color:var(--navy);
  font-size:.78rem;font-weight:700;
  padding:6px 16px;border-radius:20px;white-space:nowrap;
}
.foot-bar .reg:hover{background:#dbb840}

/* ══════════════════════ REGISTRATION MODAL ══════════════════════ */
.reg-modal-overlay{
  display:none;position:fixed;inset:0;z-index:1000;
  background:rgba(15,30,69,.7);backdrop-filter:blur(4px);
  align-items:center;justify-content:center;padding:20px;
}
.reg-modal-overlay.open{display:flex}
.reg-modal{
  background:#fff;border-radius:var(--r-lg);
  width:100%;max-width:680px;max-height:90vh;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-lg);overflow:hidden;
}
.reg-modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 24px;background:var(--navy);color:#fff;flex-shrink:0;
}
.reg-modal-header h3{font-family:var(--ff-display);font-size:1.1rem;margin:0}
.reg-modal-header span{font-size:.82rem;color:rgba(255,255,255,.6);margin-left:12px}
.modal-close{
  width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.2rem;cursor:pointer;
  transition:background .2s;flex-shrink:0;margin-left:auto;
}
.modal-close:hover{background:rgba(255,255,255,.15)}
.reg-modal iframe{
  flex:1;border:none;min-height:500px;
}
.modal-footer{
  padding:12px 20px;background:var(--cream);border-top:1px solid var(--border);
  font-size:.78rem;color:var(--muted);text-align:center;flex-shrink:0;
}
.modal-footer a{color:var(--teal);text-decoration:underline}

/* ══════════════════════ MOBILE NAV ══════════════════════ */
@media(max-width:840px){
  .menu-btn{display:block}
  .nav{
    display:none;flex-direction:column;align-items:stretch;gap:0;
    position:absolute;top:62px;left:0;right:0;
    background:rgba(15,30,69,.98);padding:12px 16px 20px;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav.open{display:flex}
  .nav a{padding:11px 14px;border-radius:8px;font-size:.95rem}
  .nav a.cta{margin:8px 0 0;text-align:center}
  .site-header{position:relative}
  .site-header .wrap{position:relative}
}

/* ══════════════════════ RESPONSIVE ══════════════════════ */
@media(max-width:1024px){
  .grid.c4{grid-template-columns:repeat(2,1fr)}
  .roster{grid-template-columns:repeat(3,1fr)}
  .topics-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:720px){
  .block{padding:44px 0}
  .grid.c2,.grid.c3{grid-template-columns:1fr}
  .roster{grid-template-columns:repeat(2,1fr)}
  .topics-grid{grid-template-columns:1fr}
  .fac-card{grid-template-columns:1fr;text-align:center}
  .fac-card .avatar{margin:0 auto}
  .venue-grid{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;gap:10px}
  .hero-meta-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.12);padding:12px 0}
  .hero-meta-item:last-child{border-bottom:none}
  .talks li{grid-template-columns:1fr;gap:4px}
  .talks .t,.talks .who{text-align:left}
  .foot-grid{grid-template-columns:1fr}
  .session-head{flex-direction:column;align-items:flex-start;gap:6px}
  .impact{flex-direction:column;align-items:flex-start}
  .impact .time{margin-left:0}
  .cta-band{flex-direction:column}
  .cta-band .btn{margin-left:0;align-self:flex-start}
}
@media(max-width:480px){
  .roster{grid-template-columns:1fr}
}

/* ══════════════════════ UTILITIES ══════════════════════ */
.prose p{margin-bottom:14px;color:var(--muted)}
.prose p:last-child{margin-bottom:0}
.mb-lg{margin-bottom:40px}
.text-center{text-align:center}