/* =========================================================
   ICCCMLA 2026 — IEEE theme · multipage
   IEEE blue (#00629B) dominant · gold spark · light content
   Bricolage Grotesque + Hanken Grotesk + JetBrains Mono
   ========================================================= */

:root{
  --ieee:#00629B;          /* IEEE master blue */
  --ieee-bright:#0086D1;
  --ieee-deep:#003E63;
  --ieee-soft:#E6F1F8;
  --gold:#E3AD31;
  --gold-deep:#B07F12;
  --ink:#102A3C;
  --ink-2:#566A7B;
  --bg:#F5F8FB;
  --bg-2:#E9F0F6;
  --surface:#FFFFFF;
  --line:rgba(16,42,60,.12);
  --line-soft:rgba(16,42,60,.07);

  --font-display:"Bricolage Grotesque",Georgia,serif;
  --font-body:"Hanken Grotesk",-apple-system,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,monospace;

  --maxw:1180px;
  --pad:clamp(20px,5vw,72px);
  --r:14px;
  --ease:cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
em{font-style:italic}
b{font-weight:600}
img{max-width:100%;display:block}
::selection{background:var(--gold);color:var(--ink)}

.grain{position:fixed;inset:0;z-index:9999;pointer-events:none;opacity:.022;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}*{animation:none!important}}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-mono);font-size:.8rem;font-weight:500;letter-spacing:.02em;padding:.85em 1.35em;border-radius:100px;border:1px solid transparent;cursor:pointer;transition:transform .35s var(--ease),background .25s,color .25s,box-shadow .35s var(--ease);white-space:nowrap}
.btn--lg{padding:1.05em 1.7em;font-size:.85rem}
.btn--block{width:100%;justify-content:center}
.btn--solid{background:var(--ieee);color:#fff;box-shadow:0 8px 22px -10px rgba(0,98,155,.65)}
.btn--solid:hover{background:var(--ieee-deep);transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(0,98,155,.75)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn--gold{background:var(--gold);color:var(--ink);box-shadow:0 8px 22px -10px rgba(227,173,49,.7)}
.btn--gold:hover{background:#f0bf4f;transform:translateY(-2px)}
.btn--ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn--ghost-light:hover{border-color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px)}

.link-arrow{font-family:var(--font-mono);font-size:.82rem;color:var(--ieee);border-bottom:1px solid transparent;transition:border-color .25s;display:inline-block}
.link-arrow:hover{border-color:var(--ieee)}

.dot{width:7px;height:7px;border-radius:50%;background:var(--gold);display:inline-block;flex:none;animation:pulse 2.4s infinite}
.dot--hot{background:var(--gold)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(227,173,49,.5)}70%{box-shadow:0 0 0 9px rgba(227,173,49,0)}100%{box-shadow:0 0 0 0 rgba(227,173,49,0)}}

/* ============ TOP UTILITY BAR (IEEE branding) ============ */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:7px var(--pad);background:#fff;border-bottom:1px solid var(--line-soft)}
.topbar__txt{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.02em;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__logos{display:flex;align-items:center;gap:18px;flex:none}
.topbar__logos img{height:36px;width:auto;display:block}
@media (max-width:720px){.topbar__txt{display:none}.topbar{justify-content:center}}

/* skip-to-content (a11y) */
.skip-link{position:absolute;left:-9999px;top:0;z-index:300;background:var(--ieee);color:#fff;font-family:var(--font-mono);font-size:.8rem;padding:10px 16px;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
main:focus{outline:none}

/* ============ NAV ============ */
.nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:13px var(--pad);background:rgba(255,255,255,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.brand{display:flex;align-items:center;gap:11px}
.brand__logo{width:36px;height:36px;display:block;border-radius:50%;box-shadow:0 4px 14px -4px rgba(0,98,155,.5)}
.brand__txt{font-family:var(--font-display);font-weight:600;font-size:1.16rem;letter-spacing:-.01em;display:inline-flex;align-items:baseline;gap:6px}
.brand__yr{font-family:var(--font-mono);font-size:.62rem;font-weight:500;color:var(--ieee)}
.nav__links{display:flex;gap:24px}
.nav__links a{font-size:.9rem;color:var(--ink-2);font-weight:500;position:relative;transition:color .25s;padding:4px 0}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:linear-gradient(90deg,var(--ieee),var(--gold));transition:width .3s var(--ease)}
.nav__links a:hover,.nav__links a.is-active{color:var(--ink)}
.nav__links a.is-active::after,.nav__links a:hover::after{width:100%}
.nav__right{display:flex;align-items:center;gap:14px}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav__burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s var(--ease)}
.nav__burger.open span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav__burger.open span:last-child{transform:translateY(-3.5px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0 0 0 auto;width:min(82vw,340px);z-index:99;background:var(--surface);padding:90px 32px 32px;display:flex;flex-direction:column;gap:4px;transform:translateX(100%);transition:transform .45s var(--ease);box-shadow:-20px 0 60px -20px rgba(16,42,60,.25)}
.mobile-menu.open{transform:none}
.mobile-menu a{padding:13px 0;font-size:1.1rem;font-family:var(--font-display);border-bottom:1px solid var(--line-soft)}
.mobile-menu a.is-active{color:var(--ieee)}
.mobile-menu .btn{margin-top:18px;border-bottom:none;justify-content:center}

/* ============ HERO (IEEE blue) ============ */
.hero{position:relative;overflow:hidden;color:#fff;padding:clamp(72px,13vh,150px) var(--pad) clamp(56px,9vh,100px);background:radial-gradient(50% 60% at 85% 10%,rgba(0,134,209,.55),transparent 70%),linear-gradient(160deg,#0a4e7a 0%,#00629B 45%,#003E63 100%)}
.hero__net{position:absolute;inset:0;z-index:0;width:100%;height:100%;opacity:.9}
.hero__inner{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.03em;color:#cfe6f5;padding:8px 15px;border:1px solid rgba(255,255,255,.22);border-radius:100px;background:rgba(255,255,255,.07);margin-bottom:30px}
.hero__title{font-family:var(--font-display);font-weight:600;font-size:clamp(2.4rem,6.6vw,5.4rem);line-height:1.0;letter-spacing:-.025em;display:flex;flex-direction:column}
.hero__accent em{font-style:italic;font-weight:600;background:linear-gradient(100deg,#7fd0f5 0%,#bfe6fa 45%,var(--gold) 110%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero__sub{font-family:var(--font-mono);font-size:.92rem;color:#a9c8dd;margin-top:20px;letter-spacing:.01em}
.hero__meta{display:flex;flex-wrap:wrap;gap:18px 48px;margin:36px 0 0;border-top:1px solid rgba(255,255,255,.16);padding-top:26px}
.hero__metacol{display:flex;flex-direction:column;gap:3px}
.hero__metacol .lbl{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:#7fa9c6}
.hero__metacol .val{font-size:1.12rem;font-weight:600}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero__cta .btn--solid{background:var(--gold);color:var(--ink)}
.hero__cta .btn--solid:hover{background:#f0bf4f;box-shadow:0 14px 36px -12px rgba(227,173,49,.6)}
.hero__cta .btn--ghost{color:#fff;border-color:rgba(255,255,255,.3)}
.hero__cta .btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.countdown{display:flex;align-items:flex-end;gap:14px;margin-top:46px}
.cd__unit{display:flex;flex-direction:column;align-items:center;min-width:62px}
.cd__unit b{font-family:var(--font-display);font-size:clamp(2.1rem,5vw,3.1rem);font-weight:600;line-height:1;font-variant-numeric:tabular-nums;color:#fff}
.cd__unit i{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:#7fa9c6;margin-top:9px}
.cd__sep{font-family:var(--font-display);font-size:1.8rem;color:var(--gold);line-height:1;padding-bottom:16px}
.countdown__done{font-family:var(--font-mono);color:var(--gold)}

/* ============ TICKER (research themes) ============ */
.ticker{position:relative;display:flex;align-items:stretch;background:linear-gradient(90deg,var(--ieee-deep),var(--ieee));color:#fff;overflow:hidden}
.ticker__label{flex:none;display:flex;align-items:center;gap:9px;padding:0 22px;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;background:var(--gold);color:var(--ink);white-space:nowrap;z-index:2}
.ticker__label .dot{background:var(--ink);animation:none}
.ticker__viewport{flex:1;overflow:hidden;-webkit-mask:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);mask:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.ticker__track{display:inline-flex;flex-wrap:nowrap;align-items:center;white-space:nowrap;width:max-content;animation:ticker 48s linear infinite}
.ticker:hover .ticker__track{animation-play-state:paused}
.ticker__item{display:inline-block;padding:15px 0;font-family:var(--font-display);font-style:italic;font-size:1.14rem;color:#fff;white-space:nowrap}
.ticker__sep{display:inline-block;margin:0 24px;color:var(--gold);font-size:.5rem;font-style:normal;vertical-align:middle}
@keyframes ticker{to{transform:translateX(-50%)}}
@media (max-width:620px){.ticker__label{display:none}}

/* ============ PAGE HEAD (interior pages) ============ */
.page-head{position:relative;overflow:hidden;color:#fff;padding:clamp(54px,9vh,96px) var(--pad) clamp(36px,5vh,56px);background:radial-gradient(60% 80% at 88% 0%,rgba(0,134,209,.5),transparent 70%),linear-gradient(150deg,#0a4e7a,#00629B 60%,#003E63)}
.page-head__inner{max-width:var(--maxw);margin:0 auto;position:relative;z-index:1}
.crumb{font-family:var(--font-mono);font-size:.74rem;color:#9fc3da;margin-bottom:16px;letter-spacing:.02em}
.crumb a{color:#cfe6f5}
.crumb a:hover{color:#fff}
.page-head h1{font-family:var(--font-display);font-weight:600;font-size:clamp(2.1rem,5vw,3.6rem);line-height:1.03;letter-spacing:-.022em}
.page-head p{margin-top:16px;color:#cfe1ee;max-width:60ch}
.page-head__deco{position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.1) 1px,transparent 1px);background-size:30px 30px;opacity:.5}

/* ============ SECTION SHELL ============ */
.section{max-width:var(--maxw);margin:0 auto;padding:clamp(56px,9vh,110px) var(--pad)}
.sec__head{display:flex;align-items:center;gap:16px;margin-bottom:34px}
.sec__num{font-family:var(--font-mono);font-size:.8rem;color:var(--ieee);font-weight:500}
.sec__kicker{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2)}
.sec__head::after{content:"";flex:1;height:1px;background:var(--line)}
.sec__title{font-family:var(--font-display);font-weight:600;font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.05;letter-spacing:-.02em;margin-bottom:44px;max-width:20ch}

/* ---- ABOUT ---- */
.about__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,84px);align-items:start;margin-bottom:64px}
.about__lead{font-family:var(--font-display);font-weight:500;font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.16;letter-spacing:-.018em}
.about__lead em{font-weight:600;color:var(--ieee)}
.about__body p{color:var(--ink-2);margin-bottom:18px}
.about__body b{color:var(--ink)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:var(--surface);padding:30px 26px;display:flex;flex-direction:column;gap:8px;position:relative}
.stat::before{content:"";position:absolute;top:0;left:0;width:36px;height:3px;background:linear-gradient(90deg,var(--ieee),var(--gold))}
.stat__num{font-family:var(--font-display);font-weight:600;font-size:clamp(2.2rem,4vw,3rem);line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.stat__lbl{font-size:.9rem;color:var(--ink-2)}

/* ---- HOME EXPLORE CARDS ---- */
.explore{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.xcard{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px 26px 26px;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .3s;position:relative;overflow:hidden}
.xcard::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--ieee),var(--gold));transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.xcard:hover{transform:translateY(-4px);box-shadow:0 24px 48px -28px rgba(0,98,155,.4);border-color:transparent}
.xcard:hover::before{transform:scaleX(1)}
.xcard__k{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ieee)}
.xcard h3{font-family:var(--font-display);font-size:1.3rem;font-weight:600;line-height:1.15}
.xcard p{font-size:.92rem;color:var(--ink-2);flex:1}
.xcard__go{font-family:var(--font-mono);font-size:.78rem;color:var(--ieee);margin-top:6px}

/* ---- TIMELINE ---- */
.timeline{list-style:none}
.tl{display:grid;grid-template-columns:minmax(150px,210px) 1fr;gap:18px 30px;align-items:baseline;padding:24px 0;border-top:1px solid var(--line)}
.tl:last-child{border-bottom:1px solid var(--line)}
.tl__date{font-family:var(--font-mono);font-size:.92rem;color:var(--ink);font-weight:500;display:flex;align-items:center;gap:9px}
.tl__title{font-family:var(--font-display);font-size:1.3rem;font-weight:500;grid-column:2}
.tl__note{font-size:.92rem;color:var(--ink-2);grid-column:2}
.tl--hot{background:linear-gradient(90deg,rgba(227,173,49,.14),transparent 70%)}
.tl--hot .tl__title{color:var(--gold-deep)}
.tl:hover .tl__date{color:var(--ieee);transition:color .3s}

/* ---- TRACKS ---- */
.tracks__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.track{background:var(--surface);padding:28px 24px 30px;display:flex;flex-direction:column;gap:11px;transition:background .3s var(--ease);min-height:182px}
.track__id{font-family:var(--font-mono);font-size:.72rem;color:var(--ieee);font-weight:500}
.track h3{font-family:var(--font-display);font-size:1.14rem;font-weight:500;line-height:1.2}
.track p{font-size:.88rem;color:var(--ink-2);margin-top:auto}
.track:hover{background:var(--ieee)}
.track:hover h3,.track:hover p{color:#fff}
.track:hover .track__id{color:var(--gold)}
.tracks__special{display:flex;gap:16px;align-items:flex-start;margin-top:24px;padding:22px 26px;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(120deg,var(--ieee-soft),#FFF8E9)}
.tracks__special .track__id{font-family:var(--font-display);font-size:1.4rem;color:var(--ieee);line-height:1}
.tracks__special p{font-size:.95rem;color:var(--ink-2)}
.tracks__special b{color:var(--ink)}

/* ---- TOPICS (chips) ---- */
.topics{display:flex;flex-wrap:wrap;gap:10px}
.topics li{list-style:none;font-size:.86rem;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:100px;padding:8px 15px;transition:background .25s,color .25s,border-color .25s}
.topics li:hover{background:var(--ieee);color:#fff;border-color:var(--ieee)}

/* ---- SPEAKERS ---- */
.speakers__lead{color:var(--ink-2);max-width:62ch;margin:-28px 0 38px}
.speakers__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.spk{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.spk:hover{transform:translateY(-4px);box-shadow:0 22px 44px -22px rgba(16,42,60,.3)}
.spk__photo{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;background:linear-gradient(150deg,var(--ieee-deep),var(--ieee));position:relative}
.spk__photo::before{content:attr(data-init);font-family:var(--font-display);font-size:2.6rem;font-weight:600;color:#fff;letter-spacing:.02em}
.spk__photo::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 22%,rgba(227,173,49,.4),transparent 55%)}
.spk__photo--tba{background:var(--bg-2)}
.spk__photo--tba::before{content:none}
.spk--tba .spk__photo{font-family:var(--font-display);font-size:2.4rem;color:var(--line);font-weight:600}
.spk--tba{opacity:.8}
.spk__body{padding:20px}
.spk__body h3{font-family:var(--font-display);font-size:1.12rem;font-weight:500;line-height:1.2}
.spk__role{display:block;font-size:.83rem;color:var(--ink-2);margin:6px 0 0}
.spk__tag{display:inline-block;margin-top:11px;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ieee);background:var(--ieee-soft);padding:4px 9px;border-radius:5px}

/* ---- COMMITTEE ---- */
.comm__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-bottom:52px}
.comm{background:var(--surface);padding:26px 24px;display:flex;flex-direction:column;gap:8px}
.comm__role{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ieee)}
.comm h3{font-family:var(--font-display);font-size:1.14rem;font-weight:500;line-height:1.25}
.comm p{font-size:.85rem;color:var(--ink-2)}
.comm__sub{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);margin-bottom:20px;font-weight:500}
.comm__board{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-bottom:34px}
.comm__board li{background:var(--surface);padding:18px 20px;display:flex;flex-direction:column;gap:3px}
.comm__board b{font-family:var(--font-display);font-size:1rem;font-weight:500}
.comm__board span{font-size:.8rem;color:var(--ink-2)}
.comm__board--dense li{padding:14px 16px}
.comm__board--dense b{font-size:.92rem}
.comm__board--dense span{font-size:.74rem}
.comm__counts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center}
.comm__counts div{padding:24px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.comm__counts b{display:block;font-family:var(--font-display);font-size:2.4rem;font-weight:600;color:var(--ieee);line-height:1}
.comm__counts span{font-size:.85rem;color:var(--ink-2);margin-top:6px;display:block}

/* ---- REGISTRATION ---- */
.fees{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface);box-shadow:0 18px 40px -28px rgba(16,42,60,.3)}
.fees table{width:100%;border-collapse:collapse;font-size:.96rem}
.fees thead th{background:var(--ieee);color:#fff;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;font-weight:500;text-align:left;padding:16px 22px}
.fees thead th:not(:first-child){text-align:right}
.fees tbody th{text-align:left;font-weight:600;padding:16px 22px;border-top:1px solid var(--line-soft)}
.fees tbody td{text-align:right;padding:16px 22px;border-top:1px solid var(--line-soft);font-family:var(--font-mono);font-size:.92rem;color:var(--ink);white-space:nowrap}
.fees tbody td i{color:var(--ink-2);font-style:normal;font-size:.78rem}
.fees tbody tr:hover{background:var(--ieee-soft)}
.register__note{margin-top:24px;color:var(--ink-2);font-size:.92rem;max-width:80ch}
.notice-list{margin:0 0 30px;padding-left:0;list-style:none}
.notice-list li{position:relative;padding:8px 0 8px 26px;color:var(--ink-2);border-bottom:1px solid var(--line-soft)}
.notice-list li::before{content:"›";position:absolute;left:6px;color:var(--ieee);font-weight:700}

/* ---- EDITIONS ---- */
.editions__sub{color:var(--ink-2);max-width:62ch;margin:-30px 0 40px}
.ed__list{list-style:none;border-top:1px solid var(--line)}
.ed{display:grid;grid-template-columns:120px 1fr auto;gap:24px;align-items:center;padding:18px 8px;border-bottom:1px solid var(--line);transition:padding .35s var(--ease),background .3s}
.ed:hover{padding-left:20px;background:var(--bg-2)}
.ed__yr{font-family:var(--font-display);font-size:1.6rem;font-weight:600;color:var(--ink)}
.ed__meta{font-size:.92rem;color:var(--ink-2)}
.ed__link{font-family:var(--font-mono);font-size:.78rem;color:var(--ieee)}
.ed__link:hover{text-decoration:underline}
.ed__link--muted{color:var(--ink-2)}
.ed--now{background:linear-gradient(90deg,var(--ieee-soft),transparent 60%)}
.ed--now .ed__yr{color:var(--ieee)}

/* ---- VENUE ---- */
.venue__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,64px);align-items:center}
.venue__copy h2{font-family:var(--font-display);font-weight:600;font-size:clamp(1.9rem,3.8vw,2.8rem);line-height:1.04;letter-spacing:-.02em;margin-bottom:22px}
.venue__copy p{color:var(--ink-2);margin-bottom:28px;max-width:46ch}
.venue__facts div{display:grid;grid-template-columns:96px 1fr;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
.venue__facts dt{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);padding-top:2px}
.venue__facts dd{font-weight:500}
.venue__map{position:relative;aspect-ratio:1/.92;border-radius:var(--r);overflow:hidden;background:linear-gradient(150deg,var(--ieee-deep),var(--ieee));border:1px solid var(--line);box-shadow:0 30px 60px -34px rgba(0,98,155,.5);display:flex;align-items:center;justify-content:center}
.venue__map::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px);background-size:26px 26px}
.venue__pin{position:relative;z-index:2}
.venue__mark{width:58px;height:58px;display:block;border-radius:50%;box-shadow:0 0 0 8px rgba(255,255,255,.14)}
.venue__rings{position:absolute;width:150px;height:150px;border:1px solid rgba(255,255,255,.45);border-radius:50%;animation:ring 3s ease-out infinite}
@keyframes ring{0%{transform:scale(.5);opacity:.9}100%{transform:scale(1.6);opacity:0}}
.venue__country{position:absolute;bottom:18px;right:22px;font-family:var(--font-mono);font-size:.8rem;color:rgba(255,255,255,.7);z-index:2}

/* ---- SPONSORS ---- */
.sponsors__lead{color:var(--ink-2);max-width:58ch;margin:-30px 0 38px}
.sponsor-card{display:flex;flex-direction:column;align-items:center;gap:22px;text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:clamp(34px,6vw,60px);max-width:560px;margin:0 auto;box-shadow:0 26px 60px -34px rgba(16,42,60,.35);position:relative;overflow:hidden}
.sponsor-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--ieee),var(--gold))}
.sponsor-card__tag{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ieee);background:var(--ieee-soft);padding:6px 14px;border-radius:100px}
.sponsor-card__logo{width:min(360px,80%);height:auto}
.sponsor-card__name{font-family:var(--font-display);font-size:1.2rem;font-weight:600}
.sponsor-card__name span{display:block;font-family:var(--font-body);font-size:.9rem;font-weight:400;color:var(--ink-2);margin-top:4px}
.sponsors__cta{text-align:center;margin-top:34px;color:var(--ink-2);font-size:.95rem}

/* ---- CFP / CTA panel ---- */
.cfp{max-width:var(--maxw)}
.cfp__panel{position:relative;overflow:hidden;border-radius:24px;background:linear-gradient(145deg,#0a4e7a,#00629B 60%,#003E63);color:#fff;padding:clamp(40px,7vw,80px)}
.cfp__glow{position:absolute;inset:auto -10% -40% 25%;height:90%;background:radial-gradient(50% 100% at 50% 100%,rgba(227,173,49,.4),transparent 70%)}
.cfp__panel>*{position:relative;z-index:1}
.cfp__kicker{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.cfp__panel h2{font-family:var(--font-display);font-weight:600;font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.04;letter-spacing:-.02em;margin:16px 0 18px;max-width:16ch}
.cfp__panel p{color:#cfe2f0;max-width:58ch;margin-bottom:32px}
.cfp__cta{display:flex;flex-wrap:wrap;gap:14px}

/* ---- CONTACT ---- */
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,72px);align-items:start}
.contact__info h2{font-family:var(--font-display);font-weight:600;font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.05;letter-spacing:-.02em;margin-bottom:30px}
.contact__info dl div{display:grid;grid-template-columns:96px 1fr;gap:14px;padding:15px 0;border-top:1px solid var(--line)}
.contact__info dt{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);padding-top:2px}
.contact__info dd{font-weight:500;word-break:break-word}
.contact__info a{color:var(--ieee)}
.contact__form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:30px;box-shadow:0 18px 40px -30px rgba(16,42,60,.3)}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);margin-bottom:8px}
.field input,.field textarea{width:100%;font-family:var(--font-body);font-size:1rem;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;transition:border-color .25s,box-shadow .25s;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ieee);box-shadow:0 0 0 3px rgba(0,98,155,.16)}

/* ============ SCROLL PROGRESS ============ */
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;background:linear-gradient(90deg,var(--ieee),var(--gold));box-shadow:0 1px 6px rgba(0,98,155,.4);transition:width .1s linear}

/* ============ IEEE BRANDING ============ */
/* official IEEE logo always sits on a white clear-space chip (brand-guideline safe) */
.ieee-logo{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 18px;box-shadow:0 10px 26px -16px rgba(16,42,60,.4);height:70px;width:auto;object-fit:contain}
.ieee-logo--lg{padding:16px 22px;height:88px}
.ieee-logos{display:flex;gap:16px;flex-wrap:wrap;align-items:center;flex:none}

/* home strip */
.ieee-strip{max-width:var(--maxw);margin:0 auto;padding:clamp(34px,5vw,52px) var(--pad);display:flex;align-items:center;gap:clamp(22px,4vw,44px);flex-wrap:wrap;border-bottom:1px solid var(--line-soft)}
.ieee-strip .ieee-logos{flex:none}
.ieee-strip__txt{flex:1;min-width:260px}
.ieee-strip__txt b{font-family:var(--font-display);font-size:1.3rem;font-weight:600;display:block;margin-bottom:6px}
.ieee-strip__txt p{color:var(--ink-2);font-size:.95rem;max-width:60ch}
.ieee-strip__txt p b{display:inline;font-size:inherit;color:var(--ieee)}
.ieee-strip__txt b{font-family:var(--font-display);font-size:1.3rem;font-weight:600;display:block;margin-bottom:6px}
.ieee-strip__txt p{color:var(--ink-2);font-size:.95rem;max-width:60ch}

/* footer band */
.ieee-band{max-width:var(--maxw);margin:0 auto clamp(36px,5vh,52px);display:flex;align-items:center;gap:28px;flex-wrap:wrap;padding-bottom:clamp(28px,4vh,40px);border-bottom:1px solid rgba(255,255,255,.1)}
.ieee-band .ieee-logo{flex:none}
.ieee-band__txt{flex:1;min-width:260px}
.ieee-band__txt b{font-family:var(--font-display);font-size:1.05rem;color:#fff;display:block;margin-bottom:6px}
.ieee-band__txt span{font-size:.88rem;color:#8298a8;max-width:70ch;display:block}

/* ============ FOOTER ============ */
.footer{background:var(--ink);color:#aebecb;padding:clamp(56px,8vh,90px) var(--pad) 36px}
.footer__top{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.3fr 2fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer__brand .brand__logo{width:44px;height:44px;border-radius:50%}
.footer__brand .brand__txt{color:#fff;font-family:var(--font-display);font-weight:600;font-size:1.3rem;display:inline-flex;align-items:baseline;gap:6px;margin:14px 0 0}
.footer__brand .brand__yr{font-family:var(--font-mono);font-size:.62rem;color:var(--gold)}
.footer__brand p{margin-top:14px;font-size:.92rem;color:#8298a8;max-width:36ch}
.footer__ieee{font-family:var(--font-mono);font-size:.74rem!important;color:#6f8a9d!important}
.footer__cols{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.footer__cols h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:#6f8a9d;margin-bottom:16px;font-weight:500}
.footer__cols a{display:block;font-size:.93rem;padding:6px 0;color:#aebecb;transition:color .25s;word-break:break-word}
.footer__cols a:hover{color:var(--gold)}
.footer__bottom{max-width:var(--maxw);margin:28px auto 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-family:var(--font-mono);font-size:.74rem;color:#6f8a9d}
.footer__legal{display:flex;gap:14px;flex-wrap:wrap}
.footer__legal a{color:#8298a8}
.footer__legal a:hover{color:var(--gold)}

/* form consent / privacy note */
.form-consent{font-size:.82rem;color:var(--ink-2);line-height:1.5;margin:-2px 0 16px}
.form-consent a{color:var(--ieee);text-decoration:underline}

/* legal page prose */
.prose{max-width:75ch}
.prose h2{font-family:var(--font-display);font-weight:600;font-size:1.5rem;margin:36px 0 12px;letter-spacing:-.01em}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:var(--ink-2);margin-bottom:12px}
.prose ul{padding-left:22px;margin-bottom:12px}
.prose a{color:var(--ieee);text-decoration:underline}
.prose .updated{font-family:var(--font-mono);font-size:.78rem;color:var(--ink-2);margin-bottom:30px}

/* ============ RESPONSIVE ============ */
@media (max-width:1000px){
  .tracks__grid,.speakers__grid,.comm__board{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .comm__grid,.explore{grid-template-columns:1fr}
}
@media (max-width:860px){
  .nav__links{display:none}
  .nav__burger{display:flex}
  .about__grid,.venue__grid,.contact__grid{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr;gap:36px}
}
@media (max-width:620px){
  body{font-size:16px}
  .tracks__grid,.speakers__grid,.stats,.comm__board,.comm__counts{grid-template-columns:1fr}
  .tl{grid-template-columns:1fr;gap:6px}
  .tl__title,.tl__note{grid-column:1}
  .ed{grid-template-columns:60px 1fr;gap:12px}
  .ed__link{grid-column:2}
  .footer__cols{grid-template-columns:1fr 1fr}
  .countdown{gap:8px}
  .cd__unit{min-width:48px}
  .hero__cta .btn{flex:1;justify-content:center}
  .tracks__special{flex-direction:column;gap:10px}
}