/* Palette from the JK AI Conclave brochure: royal blue, orange, green, cyan on white. Hero uses the dark data-center image. */
:root {
  --bg: #ffffff;
  --soft: #f3f6fc;
  --mint: #e4f3df;
  --ink: #131a33;
  --text: #2c3350;
  --muted: #5d6585;
  --line: #dde3f1;
  --blue: #23439c;
  --blue-d: #19327a;
  --cyan: #1da1dd;
  --orange: #f47b20;
  --orange-d: #d9650d;
  --green: #34b05a;
  --dark: #0a0b10;
  --gold: #f2b24a;
  --r: 14px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --display: 'Manrope', system-ui, sans-serif;
  --body: 'Inter', system-ui, sans-serif;
  --gutter: clamp(16px, 5vw, 64px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 16px/1.6 var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }
button { font: inherit; color: inherit; }
i.bi { line-height: 1; display: inline-block; vertical-align: -.12em; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; border-radius: 8px; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--orange); color: #fff; padding: 10px 16px; border-radius: 10px; z-index: 100; font-weight: 600; transition: top .2s; }
.skip:focus { top: 12px; }
.progress { position: fixed; top: 0; left: 0; height: 3px; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--orange), var(--green), var(--cyan), var(--blue)); z-index: 60; }
.c-j { color: var(--orange); } .c-a { color: var(--cyan); } .c-v { color: var(--green); }

/* nav: solid white over the banner slider */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px var(--gutter); height: 68px; color: var(--ink); background: rgba(255, 255, 255, .96); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line); }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.logo-plate { background: #fff; border-radius: 10px; padding: 5px 12px; display: grid; place-items: center; }
.logo-plate img { height: 32px; width: auto; display: block; }
.brand .sep { width: 1px; height: 26px; background: currentColor; opacity: .3; }
.brand b { font: 800 17px var(--display); letter-spacing: -.01em; white-space: nowrap; }
.links { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; align-items: center; }
.links a { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 10px; text-decoration: none; font-size: 14px; font-weight: 500; opacity: .85; transition: opacity .2s, background .2s; }
.links a:hover { opacity: 1; background: rgba(127, 140, 190, .18); }
.links a.cta { background: var(--orange); color: #fff; font-weight: 700; margin-left: 6px; opacity: 1; }
.links a.cta:hover { background: var(--orange-d); }

/* layout */
section { position: relative; padding: clamp(60px, 9vw, 104px) var(--gutter); max-width: 1320px; margin: 0 auto; }
.eyebrow { font: 700 12px var(--body); letter-spacing: .2em; text-transform: uppercase; color: var(--orange); margin: 0 0 12px; }
h2 { font: 800 clamp(28px, 4vw, 46px)/1.1 var(--display); letter-spacing: -.025em; margin: 0 0 18px; color: var(--blue); text-wrap: balance; }
h2 span { color: var(--orange); }
.lede { color: var(--muted); font-size: clamp(16px, 1.4vw, 18px); max-width: 70ch; margin: 0; }
.h-sm { font: 800 clamp(22px, 2.6vw, 30px) var(--display); color: var(--blue); margin: 52px 0 22px; }

/* buttons */
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; gap: 10px; min-height: 48px; padding: 0 22px; border-radius: 12px; font-weight: 600; font-size: 15px; text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: transform .3s var(--ease), background .2s, border-color .2s; will-change: transform; }
.btn.primary { background: var(--orange); color: #fff; font-weight: 700; }
.btn.primary:hover { background: var(--orange-d); }
.btn.ghost { border-color: rgba(255, 255, 255, .45); color: #fff; background: rgba(255, 255, 255, .06); backdrop-filter: blur(6px); }
.btn.ghost:hover { background: rgba(255, 255, 255, .16); }
.btn i { font-size: 17px; }

/* hero: banner slider */
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.hero { max-width: none; margin: 0; padding: 68px 0 0; background: var(--soft); }
.slider { position: relative; width: 100%; }
.slides { position: relative; width: 100%; aspect-ratio: 2.9 / 1; overflow: hidden; background: #f4f7fc; }
.slide { position: absolute; inset: 0; display: grid; place-items: center; visibility: hidden; }
.slide.is-active, .slide.is-moving { visibility: visible; }
.slide img { display: block; width: 100%; height: 100%; object-fit: contain; }
.sl-btn { position: absolute; top: calc(50% - 20px); translate: 0 -50%; z-index: 3; width: 48px; height: 48px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .92); color: var(--blue); font-size: 20px; cursor: pointer; display: grid; place-items: center; box-shadow: 0 8px 22px -8px rgba(25, 50, 122, .55); opacity: 0; transition: opacity .25s, background .2s, color .2s; }
.sl-btn.prev { left: clamp(10px, 2vw, 28px); } .sl-btn.next { right: clamp(10px, 2vw, 28px); }
.slider:hover .sl-btn, .slider:focus-within .sl-btn { opacity: 1; }
.sl-btn:hover { background: var(--blue); color: #fff; }
.sl-dots { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 6px 8px 8px; background: #f4f7fc; }
.sl-dots button { min-width: 24px; height: 24px; display: grid; place-items: center; border: 0; background: transparent; cursor: pointer; padding: 0; color: var(--blue); }
.sl-dots button:not(.sl-pause) i { display: block; width: 28px; height: 6px; border-radius: 4px; background: #c5cde6; position: relative; overflow: hidden; }
.sl-dots button.on i::after { content: ''; position: absolute; inset: 0; background: var(--orange); transform-origin: 0 50%; transform: scaleX(var(--p, 1)); }
.sl-pause i { font-size: 16px; }

.hero-bar { display: grid; grid-template-columns: repeat(3, auto) 1fr auto; align-items: center; gap: 4px 0; background: var(--blue); color: #fff; padding: 6px var(--gutter); }
.fact { padding: 12px 22px; display: flex; gap: 12px; align-items: center; border-right: 1px solid rgba(255, 255, 255, .2); }
.fact:first-child { padding-left: 0; }
.fact > i { font-size: 22px; color: #ffb36b; flex: none; }
.fact small { display: block; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: #b9c5ee; }
.fact b { font: 700 15px/1.3 var(--display); white-space: nowrap; }
.countdown { display: flex; gap: 8px; align-items: center; justify-content: flex-end; padding: 8px 18px; }
.countdown div { min-width: 54px; padding: 6px 8px; text-align: center; border-radius: 10px; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .18); }
.countdown b { display: block; font: 800 20px/1 var(--display); font-variant-numeric: tabular-nums; }
.countdown small { font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: #b9c5ee; }
.hero-bar .cta-row { flex-wrap: nowrap; }
.hero-bar .btn { min-height: 44px; padding: 0 18px; font-size: 14px; white-space: nowrap; }

/* band */
.band { background: var(--blue); color: #fff; padding: 22px var(--gutter); text-align: center; border-bottom-left-radius: 0; }
.band p { margin: 0 auto; max-width: 1100px; font: 500 clamp(16px, 1.8vw, 21px)/1.5 var(--body); }
.band b { font-weight: 800; color: #9fe0ff; } .band b.o { color: #ffb36b; }

/* featuring */
.feat { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); border-block: 1px solid var(--line); }
.feat div { padding: 26px 12px; text-align: center; font: 700 16px/1.3 var(--display); color: var(--ink); border-right: 1px solid var(--line); }
.feat div:last-child { border-right: 0; }
.feat span { width: 62px; height: 62px; margin: 0 auto 12px; display: grid; place-items: center; border-radius: 18px; font-size: 30px; color: var(--cyan); background: #e6f4fb; transition: transform .5s var(--ease); }
.feat span.p { color: #7a4ccf; background: #efe8fb; } .feat span.g { color: var(--green); background: #e4f3df; } .feat span.o { color: var(--orange); background: #fdeadb; } .feat span.c { color: var(--blue); background: #e5ebfa; }
.feat div:hover span { transform: translateY(-5px) scale(1.06); }

/* stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-top: 44px; }
.stat { background: var(--soft); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; display: grid; gap: 4px; }
.stat > i { font-size: 20px; color: var(--orange); margin-bottom: 6px; }
.stat b { font: 800 clamp(36px, 4.2vw, 52px)/1 var(--display); letter-spacing: -.03em; color: var(--blue); }
.stat span { color: var(--muted); font-size: 14px; }

/* what to expect: brochure's blue band */
.expect-wrap { max-width: none; background: var(--blue); color: #fff; padding-inline: max(var(--gutter), calc((100% - 1320px) / 2 + var(--gutter))); }
.expect-wrap h2 { color: #fff; } .expect-wrap h2 span { color: #ffb36b; }
.expect { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 0; margin-top: 28px; }
.expect article { padding: 6px 24px 6px 0; margin-right: 24px; border-right: 1px solid rgba(255, 255, 255, .22); }
.expect article:last-child { border-right: 0; }
.expect h3 { font: 800 19px var(--display); margin: 0 0 8px; }
.expect p { margin: 0; color: #d4dcf5; font-size: 15px; }

/* why attend */
.why { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 26px 0 0; padding: 0; }
.why li { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-radius: 12px; background: var(--soft); border: 1px solid var(--line); font: 700 15px var(--display); color: var(--ink); transition: transform .4s var(--ease), border-color .2s, background .2s; }
.why li i { font-size: 20px; color: var(--orange); }
.why li:hover { transform: translateY(-3px); border-color: var(--blue); background: #fff; }

/* projects */
#projects { max-width: none; background: var(--soft); padding-inline: max(var(--gutter), calc((100% - 1320px) / 2 + var(--gutter))); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 30px 0 34px; }
.chip { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 16px; border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 14px; font-weight: 600; cursor: pointer; transition: all .25s var(--ease); }
.chip:hover { color: var(--blue); border-color: var(--blue); }
.chip[aria-pressed="true"] { background: var(--blue); border-color: var(--blue); color: #fff; }
.chip small { opacity: .7; font-weight: 700; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 26px 20px; }
.cell { perspective: 1200px; height: 430px; --c1: var(--blue); --c2: var(--cyan); }
.cell[data-cat="mobility"] { --c1: #1b7fc2; --c2: #29b6e8; }
.cell[data-cat="safety"]   { --c1: #19327a; --c2: #2f5ed0; }
.cell[data-cat="energy"]   { --c1: #e4600c; --c2: #f7a23a; }
.cell[data-cat="care"]     { --c1: #1f9248; --c2: #52c878; }
.cell[data-cat="platform"] { --c1: #23439c; --c2: #1da1dd; }
.cell[hidden] { display: none; }
.card { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; will-change: transform; }
.inner { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform .9s var(--ease); }
.cell.flipped .inner { transform: rotateY(180deg); }
.face { position: absolute; inset: 0; border-radius: var(--r); border: 1px solid var(--line); backface-visibility: hidden; -webkit-backface-visibility: hidden; transform-style: preserve-3d; overflow: hidden; display: flex; flex-direction: column; background: #fff; box-shadow: 0 24px 44px -26px rgba(25, 50, 122, .45); transition: border-color .3s; }
.face.back { transform: rotateY(180deg); padding: 22px; background: linear-gradient(170deg, var(--blue), var(--blue-d)); border-color: var(--blue); color: #fff; }
.cell:hover .face.front { border-color: var(--c1); }
.glare { position: absolute; inset: 0; pointer-events: none; border-radius: inherit; opacity: 0; transition: opacity .3s; background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 0%), rgba(255, 255, 255, .22), transparent 45%); }
.card:hover .glare { opacity: 1; }

.banner { position: relative; height: 132px; flex: none; z-index: 2; background: linear-gradient(135deg, var(--c1), var(--c2)); }
.banner svg.net { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.num { position: absolute; left: 18px; top: 14px; font: 600 12px ui-monospace, SFMono-Regular, Menlo, monospace; color: rgba(255, 255, 255, .9); letter-spacing: .1em; transform: translateZ(20px); z-index: 2; }
.hwtag { position: absolute; right: 14px; top: 12px; z-index: 2; display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 5px 10px; border-radius: 8px; background: rgba(255, 255, 255, .92); color: var(--ink); transform: translateZ(20px); }
.picon { position: absolute; left: 18px; bottom: -22px; z-index: 3; width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; font-size: 26px; color: var(--c1); background: #fff; border: 1px solid var(--line); box-shadow: 0 14px 24px -10px rgba(25, 50, 122, .5); transform: translateZ(46px); }
.body { padding: 36px 20px 18px; display: flex; flex-direction: column; flex: 1; }
.catline { display: flex; align-items: center; gap: 7px; font-size: 11.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--orange-d); margin-bottom: 8px; transform: translateZ(14px); }
.card h3 { font: 800 21px/1.18 var(--display); letter-spacing: -.02em; margin: 0 0 8px; color: var(--ink); transform: translateZ(26px); }
.tagline { color: var(--muted); font-size: 14.5px; margin: 0; transform: translateZ(14px); }
.foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 14px; border-top: 1px solid var(--line); }
.team { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); min-width: 0; }
.team i { font-size: 15px; color: var(--blue); flex: none; }
.team span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.flip { flex: none; min-height: 44px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--blue); background: transparent; color: var(--blue); font-size: 13px; font-weight: 700; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; transition: background .2s, color .2s; transform: translateZ(24px); }
.flip:hover { background: var(--blue); color: #fff; }
.back .flip { border-color: rgba(255, 255, 255, .6); color: #fff; }
.back .flip:hover { background: #fff; color: var(--blue); }
.flip i { font-size: 14px; }

.back h4 { display: flex; align-items: center; gap: 8px; font: 700 11px var(--body); letter-spacing: .18em; text-transform: uppercase; color: #ffb36b; margin: 0 0 8px; }
.back .abs { font-size: 14px; line-height: 1.6; margin: 0 0 18px; color: #e3e9fb; }
.back ul { list-style: none; margin: 0 0 14px; padding: 0; display: grid; gap: 9px; }
.back li { display: flex; gap: 10px; font-size: 14px; align-items: flex-start; }
.back li i { color: #7fe0a0; font-size: 16px; margin-top: 2px; flex: none; }
.row-btns { margin-top: auto; display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.links2 { display: flex; flex-wrap: wrap; gap: 8px; }
.links2 a { min-height: 44px; display: inline-flex; align-items: center; gap: 8px; padding: 0 14px; border-radius: 10px; background: var(--orange); color: #fff; font-size: 13px; font-weight: 700; text-decoration: none; }
.links2 a:hover { background: var(--orange-d); }
.sr { position: absolute; left: -9999px; }

/* guests and speakers */
.guests { display: grid; grid-template-columns: repeat(3, minmax(0, 220px)); justify-content: center; gap: clamp(20px, 5vw, 70px); margin: 34px 0 60px; text-align: center; }
.guests figure { margin: 0; }
.guests figure > div { aspect-ratio: 1; border-radius: 22px; display: grid; place-items: center; font-size: 64px; border: 3px solid var(--orange); color: #f7b783; background: #fff; box-shadow: 10px 10px 0 #ececec; margin-bottom: 18px; }
.guests .g2 > div { border-color: var(--blue); color: #9aaee6; }
.guests figcaption { font-size: 14px; color: var(--muted); display: grid; }
.guests figcaption b { font: 800 16px var(--display); color: var(--orange-d); }
.guests .g2 figcaption b { color: var(--blue); }
.h2b { margin-top: 12px; }

/* programme */
.prog { display: grid; gap: 8px; margin: 28px 0 0; padding: 0; }
.prog li { list-style: none; display: grid; grid-template-columns: minmax(150px, 220px) 1fr; gap: 6px 22px; align-items: center; padding: 16px 20px; border-radius: 6px; background: var(--mint); transition: transform .4s var(--ease), background .2s; }
.prog li:hover { transform: translateX(8px); background: #d6edcf; }
.prog .t { font-size: 14px; font-weight: 600; color: var(--muted); }
.prog b { font: 700 clamp(16px, 1.8vw, 20px) var(--display); color: var(--ink); }

/* register */
.register .box { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-radius: 18px; overflow: hidden; background: var(--blue); color: #fff; }
.register .box > div { padding: clamp(28px, 4vw, 52px); }
.register .reg-r { border-left: 1px solid rgba(255, 255, 255, .22); }
.register h2 { color: #fff; font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 12px; }
.register p { margin: 0 0 24px; color: #d4dcf5; max-width: 40ch; }
.register dl { margin: 0; display: grid; gap: 12px; }
.register dl div { display: grid; grid-template-columns: 80px 1fr; }
.register dt { font-weight: 700; } .register dd { margin: 0; color: #d4dcf5; }

footer { padding: 36px var(--gutter) 40px; color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 22px; max-width: 1320px; margin: 0 auto; }
footer .logo-plate { padding: 0; }
footer .logo-plate img { height: 44px; }
footer b { color: var(--ink); }
footer .meta { display: flex; align-items: center; gap: 14px; }
.tricolour { height: 10px; background: var(--orange); }

@media (max-width: 1180px) {
  .hero-bar { grid-template-columns: 1fr 1fr; }
  .fact { border-right: 0; padding: 12px 8px; } .fact:first-child { padding-left: 8px; }
  .countdown { grid-column: 1 / -1; padding: 6px 0; justify-content: flex-start; }
  .hero-bar .cta-row { grid-column: 1 / -1; padding: 6px 0 12px; flex-wrap: wrap; }
}
@media (max-width: 980px) {
  .expect article { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .22); padding: 0 0 16px; margin: 0 0 16px; }
  .expect article:last-child { border-bottom: 0; }
}
@media (max-width: 860px) { .brand b, .brand .sep { display: none; } }
@media (max-width: 760px) {
  .links li:not(:last-child) { display: none; }
  .hero-bar { grid-template-columns: 1fr; }
  .sl-btn { opacity: 1; width: 38px; height: 38px; font-size: 16px; }
  .cell { height: 450px; }
  .guests { grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
  .guests figure > div { font-size: 34px; border-width: 2px; box-shadow: 5px 5px 0 #ececec; }
  .guests figcaption { font-size: 12px; } .guests figcaption b { font-size: 13px; }
  .prog li { grid-template-columns: 1fr; }
  .register .box { grid-template-columns: 1fr; }
  .register .reg-r { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .22); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .inner, .feat span, .why li, .prog li { transition: none; }
}