/* Blockchain Tech Show 2026 — landing page */
:root {
  --ink: oklch(0.2 0.05 257);
  --ink-2: oklch(0.27 0.055 257);
  --paper: oklch(0.975 0.01 85);
  --paper-2: oklch(0.94 0.017 85);
  --white: oklch(0.995 0.004 85);
  --line: oklch(0.85 0.02 85);
  --line-dark: oklch(0.38 0.05 257);
  --text: oklch(0.25 0.035 257);
  --muted: oklch(0.45 0.035 257);
  --on-ink: oklch(0.95 0.012 85);
  --on-ink-muted: oklch(0.8 0.025 250);
  --gold: oklch(0.8 0.125 82);
  --gold-deep: oklch(0.48 0.1 68);
  --cyan: oklch(0.82 0.1 205);
  --blue: oklch(0.46 0.15 257);
  --red: oklch(0.53 0.2 27);
  --ok: oklch(0.5 0.12 155);
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-io: cubic-bezier(0.77, 0, 0.175, 1);
  --display: "Bricolage Grotesque", "Noto Sans KR", "Phetsarath", "Noto Sans Lao", system-ui, sans-serif;
  --body: "Instrument Sans", "Noto Sans KR", "Phetsarath", "Noto Sans Lao", system-ui, sans-serif;
  --gut: clamp(1rem, 4vw, 2.5rem);
  --nav-h: 64px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--text); font: 400 1rem/1.65 var(--body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
[lang="lo"] body, html[data-lang="lo"] body { line-height: 1.85; }
html[data-lang="ko"] body { word-break: keep-all; }
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; border-radius: 2px; }
.wrap { width: min(1180px, 100% - 2 * var(--gut)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--gold); color: var(--ink); padding: .6rem 1rem; font-weight: 600; }
.skip:focus { left: 8px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.noscript { padding: 1rem; background: var(--gold); color: var(--ink); text-align: center; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 44px; padding: .65rem 1.25rem; border: 1.5px solid transparent; border-radius: 3px; font-weight: 600; text-decoration: none; line-height: 1.2; transition: transform 160ms var(--ease), background-color 160ms ease, border-color 160ms ease, color 160ms ease; -webkit-tap-highlight-color: transparent; }
.btn:active { transform: scale(.97); }
.btn--lg { min-height: 52px; padding: .8rem 1.7rem; font-size: 1.0625rem; }
.btn--gold { background: var(--gold); color: var(--ink); }
.btn--ghost { border-color: oklch(0.95 0.012 85 / .55); color: var(--on-ink); background: oklch(0.2 0.05 257 / .25); }
.btn--line { border-color: var(--text); color: var(--text); background: transparent; }
.btn--ghost-dark { color: var(--text); background: transparent; border-color: var(--line); }
@media (hover: hover) and (pointer: fine) {
  .btn--gold:hover { background: oklch(0.86 0.13 84); }
  .btn--ghost:hover { border-color: var(--on-ink); background: oklch(0.95 0.012 85 / .12); }
  .btn--line:hover, .btn--ghost-dark:hover { background: var(--text); color: var(--paper); border-color: var(--text); }
}
.link { background: none; border: 0; padding: .4rem 0; font-weight: 600; color: var(--cyan); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1.5px; min-height: 44px; }

/* nav */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; color: var(--on-ink); transition: background-color 220ms ease, box-shadow 220ms ease; }
.nav.is-solid { background: oklch(0.2 0.05 257 / .94); backdrop-filter: blur(10px); box-shadow: 0 1px 0 oklch(0.38 0.05 257 / .8); }
.nav__bar { height: var(--nav-h); width: min(1280px, 100% - 2 * var(--gut)); margin-inline: auto; display: flex; align-items: center; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; margin-right: auto; min-height: 44px; }
.brand__mark { width: 30px; height: 30px; fill: none; stroke: var(--gold); stroke-width: 2; stroke-linecap: round; }
.brand__txt { font: 800 1.25rem/1 var(--display); letter-spacing: .02em; display: inline-flex; align-items: baseline; gap: .35rem; }
.brand__txt small { font: 500 .75rem/1 var(--body); letter-spacing: .12em; color: var(--on-ink-muted); }
.nav__links { display: none; gap: 1.25rem; }
.nav__links a { text-decoration: none; font-size: .9375rem; padding: .5rem 0; min-height: 44px; display: inline-flex; align-items: center; color: var(--on-ink-muted); transition: color 160ms ease; position: relative; }
.nav__links a[aria-current="true"] { color: var(--on-ink); }
.nav__links a[aria-current="true"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 6px; height: 2px; background: var(--gold); }
@media (hover: hover) and (pointer: fine) { .nav__links a:hover { color: var(--on-ink); } }
.lang { display: inline-flex; flex-shrink: 0; border: 1px solid oklch(0.95 0.012 85 / .35); border-radius: 3px; overflow: hidden; }
@media (max-width: 480px) { .brand__txt small { display: none; } .lang button { padding: 0 .45rem; } .nav__bar { gap: .75rem; } }
.lang button { background: none; border: 0; min-height: 44px; min-width: 44px; padding: 0 .5rem; white-space: nowrap; font-size: .8125rem; font-weight: 600; color: var(--on-ink-muted); transition: background-color 160ms ease, color 160ms ease; }
.lang button[aria-pressed="true"] { background: var(--on-ink); color: var(--ink); }
.nav__cta { display: inline-flex; min-height: 40px; padding: .4rem .9rem; font-size: .875rem; white-space: nowrap; flex-shrink: 0; }   /* on phones too (the audit: no way to Register without seven screens of scrolling) */
.nav__progress { height: 2px; background: var(--gold); transform-origin: left; transform: scaleX(0); }
@media (min-width: 980px) { .nav__links { display: flex; } .nav__cta { display: inline-flex; } }

/* hero */
.hero { position: relative; min-height: min(100svh, 62rem); display: flex; flex-direction: column; justify-content: flex-end; color: var(--on-ink); background: var(--ink); overflow: hidden; isolation: isolate; }
.hero__img { position: absolute; inset: 0; z-index: -3; background: url(../img/hero.webp) 62% 50% / cover no-repeat, var(--ink); transform: scale(1.04); animation: heroIn 1400ms var(--ease) both; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, oklch(0.2 0.05 257 / .92) 0%, oklch(0.2 0.05 257 / .6) 38%, oklch(0.2 0.05 257 / 0) 70%), linear-gradient(0deg, oklch(0.2 0.05 257 / .95) 0%, oklch(0.2 0.05 257 / 0) 38%); }
.hero__net { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
@keyframes heroIn { from { opacity: 0; transform: scale(1.1); } to { opacity: 1; transform: scale(1.04); } }
/* content sits in the middle of the space between the nav and the ticker (was pinned to the bottom, leaving a tall gap on tall windows);
   same width as the nav bar so the left edges line up */
.hero__in { flex: 1; display: flex; flex-direction: column; justify-content: center; width: min(1280px, 100% - 2 * var(--gut)); padding-top: calc(var(--nav-h) + clamp(1rem, 4svh, 3rem)); padding-bottom: clamp(1rem, 3svh, 2rem); position: relative; }
@media (min-width: 1760px) { .nav__bar, .hero__in { width: min(1520px, 100% - 2 * var(--gut)); } }
.hero__edition { font-weight: 600; letter-spacing: .02em; color: var(--gold); font-size: clamp(.9rem, 1.6vw, 1.125rem); margin-bottom: 1rem; display: flex; align-items: center; gap: .75rem; }
.hero__edition::before { content: ""; width: 2.5rem; height: 2px; background: var(--gold); }
/* event mark (same as the X-banner): pixel logo, then GLOBAL ICT / CONFERENCE in the hero title type */
/* both scale with window height too, so short, wide windows keep the whole hero on screen */
.hero__brand { width: min(100%, 46rem, 76svh); margin-top: clamp(.5rem, 2vw, 1.25rem); }
@media (min-width: 1760px) { .hero__brand { width: min(100%, 54rem, 76svh); } }
/* the SVG has ~1.9% empty space left of the B: pull it back so the B lines up with the title below */
.hero__title img { display: block; width: 100%; height: auto; margin-left: -1.9%; }
.hero__conf { margin-top: clamp(.6rem, 2.2svh, 1.4rem); font: 800 clamp(2.4rem, min(10.5vw, 12.5svh), 8.6rem)/.92 var(--display); letter-spacing: -.035em; word-spacing: .26em; text-transform: uppercase; }
/* X-banner title treatment: each line solid white at the top, fading to 18% toward its foot */
.hero__conf span { display: block; width: fit-content; padding-bottom: .04em; color: var(--on-ink); background: linear-gradient(180deg, var(--on-ink) 38%, oklch(0.95 0.012 85 / .18) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
/* short windows (laptops at 720-820 px): tighter vertical rhythm so the ticker stays on the first screen */
@media (max-height: 820px) and (min-width: 700px) {
  .hero__edition { margin-bottom: .5rem; }
  .hero__brand { margin-top: 0; width: min(100%, 46rem, 66svh); }
  .hero__conf { margin-top: .5rem; font-size: clamp(2.4rem, min(10.5vw, 11.2svh), 8.6rem); }
  .hero__in { padding-bottom: .5rem; }
  .hero__meta { margin-top: 1.1rem; }
  .hero__row { margin-top: 1.1rem; }
  .hero__hint { margin-top: .6rem; }
  .ticker { margin-top: .75rem; }
}
.hero__meta { list-style: none; margin: clamp(1.5rem, 4vw, 2.5rem) 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; }
.hero__meta li { display: flex; gap: .75rem; align-items: flex-start; }
.hero__meta svg { width: 26px; height: 26px; fill: none; stroke: var(--gold); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex: none; margin-top: 2px; }
.hero__meta b { display: block; font-weight: 600; font-size: 1.125rem; line-height: 1.35; }
.hero__meta i { display: block; font-style: normal; color: var(--on-ink-muted); font-size: .9375rem; }
.hero__row { margin-top: clamp(1.5rem, 4vw, 2.5rem); display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.5rem 2rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .75rem; }
.hero__hint { margin-top: 1.25rem; font-size: .8125rem; color: var(--on-ink-muted); letter-spacing: .02em; }
@media (hover: none) { .hero__hint { display: none; } }
.cd { display: flex; gap: clamp(.9rem, 2.5vw, 1.75rem); font-variant-numeric: tabular-nums; }
.cd div { display: flex; flex-direction: column; min-width: 3.2rem; }
.cd b { font: 700 clamp(2rem, 5vw, 3.25rem)/1 var(--display); letter-spacing: -.02em; }
.cd span { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--on-ink-muted); margin-top: .35rem; }
.cd__msg { font: 700 1.5rem/1.2 var(--display); color: var(--gold); }
.ticker { margin-top: 1.5rem; border-top: 1px solid oklch(0.95 0.012 85 / .18); background: oklch(0.2 0.05 257 / .6); overflow: hidden; white-space: nowrap; }
.ticker__track { display: inline-flex; gap: 2.5rem; padding: .7rem 0; animation: tick 60s linear infinite; font-size: .8125rem; letter-spacing: .08em; color: var(--on-ink-muted); text-transform: uppercase; will-change: transform; }
.ticker__track b { color: var(--gold); font-weight: 600; margin-right: .6rem; font-variant-numeric: tabular-nums; }
@keyframes tick { to { transform: translateX(-50%); } }

/* sections */
.sec { position: relative; padding-block: clamp(4rem, 10vw, 8rem); isolation: isolate; }
.sec--paper { background: var(--paper); }
.sec--paper2 { background: var(--paper-2); }
.sec--white { background: var(--white); }
.sec--ink { background: var(--ink); color: var(--on-ink); }
.sec__bg { position: absolute; inset: 0; z-index: -1; background: var(--bg) center 30% / cover no-repeat; opacity: .5; mask-image: linear-gradient(180deg, #000 0%, transparent 85%); -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 85%); }
.kicker { display: flex; align-items: center; gap: .75rem; font-weight: 600; font-size: .8125rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-deep); margin-bottom: 1rem; }
.kicker--light { color: var(--gold); }
.blk { font-variant-numeric: tabular-nums; padding: .15rem .5rem; border: 1.5px solid currentColor; border-radius: 2px; letter-spacing: .06em; }
.h2 { font: 800 clamp(1.9rem, 4.6vw, 3.4rem)/1.08 var(--display); letter-spacing: -.025em; text-wrap: balance; max-width: 22ch; margin-bottom: 1.5rem; }
html[data-lang="ko"] .h2, html[data-lang="lo"] .h2 { max-width: 26ch; }
.h2--light { color: var(--on-ink); }
.lead { font-size: clamp(1.0625rem, 1.6vw, 1.25rem); line-height: 1.7; max-width: 60ch; margin-bottom: 1rem; text-wrap: pretty; }
.lead--light { color: var(--on-ink-muted); }
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 520ms var(--ease), transform 520ms var(--ease); transition-delay: var(--d, 0ms); }
.reveal.is-in { opacity: 1; transform: none; }

/* about + ledger */
.about { display: grid; gap: clamp(2rem, 5vw, 4rem); }
@media (min-width: 900px) { .about { grid-template-columns: 1.05fr 1fr; align-items: start; } }
.about__lead p:not(.kicker):not(.lead) { max-width: 58ch; color: var(--muted); }
.ledger { margin: 0; border-top: 2px solid var(--text); font-feature-settings: "tnum"; }
.ledger__row { display: grid; grid-template-columns: 8.5rem 1fr; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); opacity: 0; transform: translateX(12px); transition: opacity 420ms var(--ease), transform 420ms var(--ease); transition-delay: calc(var(--i, 0) * 70ms); }
.ledger.is-in .ledger__row { opacity: 1; transform: none; }
.ledger dt { font-size: .8125rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gold-deep); font-weight: 600; padding-top: .2rem; }
.ledger dd { margin: 0; font-weight: 500; }
@media (max-width: 520px) { .ledger__row { grid-template-columns: 1fr; gap: .15rem; } }

/* tracks */
.tracks { display: grid; gap: 2rem; margin-top: 2.5rem; }
@media (min-width: 900px) { .tracks { grid-template-columns: 1.1fr 1fr; gap: 4rem; } }
.tracks__tabs { display: flex; flex-direction: column; border-top: 1px solid var(--line-dark); }
.tracks__tabs button { display: grid; grid-template-columns: 3.4rem 1fr; align-items: baseline; text-align: left; gap: .5rem; background: none; border: 0; border-bottom: 1px solid var(--line-dark); padding: 1.15rem .25rem; color: var(--on-ink-muted); font: 600 clamp(1.1rem, 2vw, 1.5rem)/1.3 var(--display); transition: color 200ms ease, padding-left 260ms var(--ease); min-height: 44px; }
.tracks__tabs button i { font-style: normal; font-size: .875rem; color: var(--gold); letter-spacing: .08em; }
.tracks__tabs button[aria-selected="true"] { color: var(--on-ink); padding-left: .85rem; }
@media (hover: hover) and (pointer: fine) { .tracks__tabs button:hover { color: var(--on-ink); } }
.tracks__panel { position: relative; padding: 1.5rem 0; align-self: start; }
.tracks__art { width: min(180px, 46%); margin-bottom: 1.25rem; stroke: var(--gold); fill: none; stroke-width: 1.4; stroke-linejoin: round; stroke-linecap: round; }
.tracks__art .f { fill: oklch(0.82 0.1 205 / .12); stroke: var(--cyan); }
.tracks__d { font-size: clamp(1.0625rem, 1.5vw, 1.2rem); line-height: 1.75; color: var(--on-ink); max-width: 46ch; transition: opacity 220ms ease, transform 220ms var(--ease); }
.tracks__panel.is-swap .tracks__d, .tracks__panel.is-swap .tracks__art { opacity: 0; transform: translateY(8px); }
.tracks__art { transition: opacity 220ms ease, transform 220ms var(--ease); }

/* programme */
.prog__tools { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.5rem; margin: 2rem 0 1.5rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { min-height: 44px; padding: .4rem 1rem; border: 1.5px solid var(--line); background: transparent; border-radius: 99px; font-weight: 500; font-size: .9375rem; transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms var(--ease); }
.chip:active { transform: scale(.97); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--on-ink); border-color: var(--ink); }
.tz { display: inline-flex; align-items: center; gap: .5rem; font-size: .875rem; color: var(--muted); flex-wrap: wrap; }
.tz button { min-height: 44px; padding: .3rem .8rem; border: 1.5px solid var(--line); background: transparent; border-radius: 3px; font-size: .875rem; transition: background-color 160ms ease, color 160ms ease; }
.tz button[aria-pressed="true"] { background: var(--text); color: var(--paper); border-color: var(--text); }
.sched { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--text); }
.sched__group { padding: 1.5rem 0 .6rem; font: 700 clamp(1.05rem, 1.8vw, 1.3rem)/1.3 var(--display); display: flex; align-items: center; gap: .75rem; border-bottom: 1px solid var(--line); }
.sched__group::before { content: ""; width: 10px; height: 10px; background: var(--gold); transform: rotate(45deg); flex: none; }
.row { display: grid; grid-template-columns: 7.2rem 1fr auto; gap: 1rem; align-items: baseline; padding: 1.05rem .5rem; border-bottom: 1px solid var(--line); transition: background-color 260ms ease, opacity 260ms ease, transform 260ms var(--ease); }
.row[hidden] { display: none; }
.row__t { font: 600 1rem/1.4 var(--display); font-variant-numeric: tabular-nums; color: var(--gold-deep); white-space: nowrap; }
.row__t small { display: block; font: 400 .8125rem var(--body); color: var(--muted); }
.row__m b { display: block; font-weight: 600; font-size: 1.0625rem; line-height: 1.45; }
.row__m span { display: block; font-size: .9rem; color: var(--muted); margin-top: .15rem; }
.tag { font-size: .6875rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; padding: .25rem .55rem; border-radius: 2px; background: var(--paper-2); color: var(--muted); white-space: nowrap; }
.row--mou { background: oklch(0.95 0.04 85); }
.row--mou .tag { background: var(--gold); color: var(--ink); }
.row--social .row__m b { font-weight: 500; }
.row.is-flash { background: oklch(0.93 0.07 85); }
@media (max-width: 640px) { .row { grid-template-columns: 6.4rem 1fr; gap: .75rem; } .row .tag { display: none; } .tz { margin-left: 0; } }
.note { margin-top: 1.5rem; font-size: .875rem; color: var(--muted); max-width: 70ch; }

/* speakers */
.spk { display: grid; gap: clamp(1rem, 2vw, 1.5rem); margin-top: 2.5rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); grid-auto-rows: 1fr; align-items: stretch; }
.spk__card { background: var(--white); border-radius: 3px; overflow: hidden; display: flex; flex-direction: column; transition: transform 260ms var(--ease), box-shadow 260ms ease; }
@media (hover: hover) and (pointer: fine) { .spk__card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px -18px oklch(0.2 0.05 257 / .5); } }
.spk__ph { aspect-ratio: 5 / 4; background: var(--ink); position: relative; overflow: hidden; }
.spk__ph svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.spk__body { padding: 1.1rem 1.15rem 1.35rem; display: flex; flex-direction: column; gap: .35rem; flex: 1; }
.spk__tba { font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 700; color: var(--gold-deep); }
.spk__org { font: 700 1.2rem/1.3 var(--display); }
.spk__topic { font-size: .9375rem; color: var(--muted); line-height: 1.55; }
.spk__time { margin-top: auto; padding-top: .6rem; font-size: .8125rem; color: var(--muted); font-variant-numeric: tabular-nums; }

/* organizers */
.orgs { margin-top: 1.75rem; border-top: 2px solid var(--text); }
.orgs__row { display: grid; gap: .6rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
@media (min-width: 760px) { .orgs__row { grid-template-columns: 11rem 1fr; align-items: center; } }
.orgs__row h3 { font: 700 .9375rem/1.3 var(--body); letter-spacing: .12em; text-transform: uppercase; color: var(--gold-deep); }
.orgs__logos { display: flex; flex-wrap: wrap; gap: .75rem 1.75rem; }
.logo { margin: 0; display: flex; flex-direction: column; gap: .25rem; }
.logo__plate { height: 88px; min-width: 190px; padding: .5rem 1rem; background: var(--white); border: 0; border-radius: 3px; display: grid; place-items: center; transition: transform 260ms var(--ease); }
@media (hover: hover) and (pointer: fine) { .logo__plate:hover { transform: translateY(-2px); } }
.logo__plate img { max-height: 72px; max-width: 100%; height: auto; width: auto; object-fit: contain; }
.logo figcaption { font-size: .875rem; color: var(--muted); }
.wordmark { font: 800 2.6rem/1 var(--display); letter-spacing: .04em; color: var(--ink); }
.wordmark--i { letter-spacing: 0; }
.wordmark--i b { color: var(--blue); font-weight: 800; }

/* venue */
.venue { overflow: hidden; }
.venue__bg { position: absolute; inset: 0; z-index: -1; background: url(../img/hero.webp) 80% 72% / cover no-repeat; transform: scale(1.5); transform-origin: 78% 80%; }
.venue::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, oklch(0.2 0.05 257 / .95) 0%, oklch(0.2 0.05 257 / .82) 55%, oklch(0.2 0.05 257 / .5) 100%), linear-gradient(0deg, oklch(0.2 0.05 257 / .8) 0%, oklch(0.2 0.05 257 / 0) 50%); }
.venue__in { max-width: 100%; }
.venue__addr { font-style: normal; display: grid; gap: .25rem; margin: 1.5rem 0; padding: 1rem 0; border-block: 1px solid var(--line-dark); max-width: 56ch; }
.venue__addr b { font: 700 1.35rem/1.3 var(--display); }
.venue__addr span { color: var(--on-ink-muted); }
.venue__row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; }
.venue__tz { color: var(--on-ink-muted); max-width: 46ch; font-size: .9375rem; }

/* register */
.reg { padding-top: 0; }
.reg__band { position: relative; height: 0; }
.reg > .wrap { position: relative; }
.reg::before { content: ""; position: absolute; inset: 0 0 auto 0; height: clamp(300px, 36vw, 400px); background: linear-gradient(180deg, oklch(0.2 0.05 257 / .35), oklch(0.2 0.05 257 / .9)), url(../img/hall.webp) center / cover no-repeat, var(--ink); z-index: -1; }
.reg > .wrap { padding-top: clamp(4rem, 8vw, 6rem); }
.reg .h2 { margin-bottom: 1rem; }
.reg__grid { margin-top: 2.5rem; display: grid; gap: 2rem; align-items: start; }
@media (min-width: 980px) { .reg__grid { grid-template-columns: 340px 1fr; gap: 3rem; } .reg__badge { position: sticky; top: calc(var(--nav-h) + 24px); } }
.reg__formwrap { background: var(--white); border-radius: 4px; padding: clamp(1.25rem, 3vw, 2.25rem); box-shadow: 0 30px 60px -40px oklch(0.2 0.05 257 / .6); }
.reg__badgecap { margin-top: .75rem; text-align: center; font-size: .8125rem; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
@media (max-width: 979px) { .reg__badge { max-width: 320px; margin-inline: auto; width: 100%; } .reg__badgecap { color: var(--on-ink-muted); } }
form { display: grid; gap: 1.1rem 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { form { grid-template-columns: 1fr 1fr; } }
.field { display: flex; flex-direction: column; gap: .4rem; min-width: 0; }
.field--full { grid-column: 1 / -1; }
.label { font-size: .875rem; font-weight: 600; }
input[type="text"], input[type="email"], input[type="tel"], select { width: 100%; min-height: 48px; padding: .6rem .85rem; border: 1.5px solid var(--line); border-radius: 3px; background: var(--paper); font-size: 1rem; transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease; }
input::placeholder { color: oklch(0.62 0.02 257); }
input:hover, select:hover { border-color: oklch(0.7 0.03 257); }
input:focus, select:focus { outline: none; border-color: var(--blue); background: var(--white); box-shadow: 0 0 0 3px oklch(0.46 0.15 257 / .2); }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: var(--red); }
.err { color: var(--red); font-size: .8125rem; min-height: 0; font-weight: 500; }
.err:empty { display: none; }
.types { display: flex; flex-wrap: wrap; gap: .5rem; }
.types label { position: relative; }
.types input { position: absolute; opacity: 0; inset: 0; }
.types span { display: inline-flex; align-items: center; min-height: 44px; padding: .4rem 1rem; border: 1.5px solid var(--line); border-radius: 99px; font-size: .9375rem; transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms var(--ease); cursor: pointer; }
.types label:active span { transform: scale(.97); }
.types input:checked + span { background: var(--ink); color: var(--on-ink); border-color: var(--ink); }
.types input:focus-visible + span { outline: 3px solid var(--gold); outline-offset: 2px; }
@media (hover: hover) and (pointer: fine) { .types span:hover { border-color: var(--text); } }
.check { display: grid; grid-template-columns: 24px 1fr; gap: .75rem; align-items: start; font-size: .875rem; color: var(--muted); line-height: 1.6; cursor: pointer; }
.check input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--ink); }
.form__foot { display: flex; flex-direction: row; flex-wrap: wrap; align-items: center; gap: .75rem 1.25rem; }
.form__foot .btn { min-width: 180px; }
.btn[disabled] { opacity: .6; cursor: progress; }
.err--form { flex: 1 1 240px; font-size: .9rem; }
.done { text-align: left; display: grid; gap: 1rem; }
.done h3 { font: 800 clamp(1.5rem, 3vw, 2.1rem)/1.15 var(--display); color: var(--ok); }
.done__id b { font: 700 1.5rem var(--display); letter-spacing: .06em; margin-left: .5rem; font-variant-numeric: tabular-nums; }
.done__act { display: flex; flex-wrap: wrap; gap: .75rem; }
.done:focus { outline: none; }

/* badge preview (90 x 120 mm) */
.badge { --band: oklch(0.5 0.14 257); aspect-ratio: 90 / 120; background: var(--white); border-radius: 12px; box-shadow: 0 28px 50px -26px oklch(0.15 0.05 257 / .8), 0 0 0 1px oklch(0.2 0.05 257 / .08); display: grid; grid-template-rows: auto auto 1fr auto; overflow: hidden; container-type: inline-size; transition: transform 260ms var(--ease); }
.badge[data-type="gov"] { --band: oklch(0.5 0.17 27); }
.badge[data-type="fin"] { --band: oklch(0.42 0.12 160); }
.badge[data-type="biz"] { --band: oklch(0.46 0.15 257); }
.badge[data-type="edu"] { --band: oklch(0.45 0.16 305); }
.badge[data-type="media"] { --band: oklch(0.4 0.03 257); }
.badge[data-type="other"] { --band: oklch(0.5 0.08 200); }
@media (hover: hover) and (pointer: fine) { .badge:hover { transform: rotate(-1.2deg) translateY(-3px); } }
.badge__top { background: var(--ink); color: var(--on-ink); padding: 7cqw 8cqw 6cqw; display: flex; justify-content: space-between; align-items: flex-end; gap: 4cqw; background-image: linear-gradient(115deg, transparent 55%, oklch(0.8 0.125 82 / .22)); }
.badge__brand { font: 800 7.4cqw/1.02 var(--display); letter-spacing: -.01em; }
.badge__ed { font: 600 3.6cqw/1.4 var(--body); text-align: right; letter-spacing: .08em; color: var(--gold); }
.badge__slot { width: 16cqw; height: 2.6cqw; border-radius: 2cqw; background: oklch(0.88 0.01 257); margin: 4cqw auto 0; box-shadow: inset 0 1px 2px oklch(0.2 0.05 257 / .3); }
.badge__body { padding: 6cqw 8cqw 3cqw; display: flex; flex-direction: column; justify-content: center; gap: 1.6cqw; text-align: center; min-height: 0; }
.badge__name { font: 800 11cqw/1.05 var(--display); letter-spacing: -.02em; overflow-wrap: anywhere; color: var(--ink); }
.badge__local { font: 500 5.4cqw/1.3 var(--body); color: var(--muted); }
.badge__org { font: 600 5.8cqw/1.3 var(--body); margin-top: 3cqw; color: var(--text); }
.badge__role { font: 400 4.8cqw/1.35 var(--body); color: var(--muted); }
.badge__name:empty::before { content: attr(data-ph); color: oklch(0.8 0.01 257); }
.badge__org:empty::before, .badge__role:empty::before { content: attr(data-ph); color: oklch(0.8 0.01 257); }
.badge__foot { background: var(--band); color: #fff; padding: 4cqw 8cqw; display: flex; flex-direction: column; gap: .8cqw; align-items: center; text-align: center; transition: background-color 260ms ease; }
.badge__foot #b-type { font: 800 5.6cqw/1.2 var(--display); letter-spacing: .1em; text-transform: uppercase; }
.badge__where { font-size: 2.8cqw; letter-spacing: .16em; opacity: .85; }

/* footer */
.foot { background: var(--ink); color: var(--on-ink-muted); padding-block: 2.5rem; }
.foot__in { display: flex; flex-wrap: wrap; gap: 1.5rem 3rem; align-items: flex-start; justify-content: space-between; }
.foot__brand { font: 800 1.35rem var(--display); color: var(--on-ink); }
.foot__note { font-size: .875rem; margin-top: .35rem; }
.foot__contact { font-size: .9375rem; }
.foot__contact a { color: var(--gold); }
.foot__top { color: var(--on-ink); text-underline-offset: 4px; min-height: 44px; display: inline-flex; align-items: center; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__img { animation: none; transform: none; }
  .ticker__track { animation: none; }
  .reveal, .ledger__row { opacity: 1; transform: none; transition: none; }
  .btn, .chip, .types span, .badge, .spk__card, .logo__plate { transition: none; }
  .tracks__d, .tracks__art { transition: opacity 120ms linear; transform: none !important; }
}

/* success: entry QR */
.done__qr { width: 240px; padding: 8px; background: #fff; border: 1px solid var(--line); border-radius: 4px; }
.done__qr img { width: 100%; height: auto; }
.done__mail, .done__dup { font-size: .9375rem; color: var(--muted); overflow-wrap: anywhere; }
.done__dup { color: var(--text); font-weight: 500; }
[hidden] { display: none !important; }

/* participating organisations */
.spk__ph--logo { display: grid; place-items: center; padding: 1rem; background: var(--white); border-bottom: 1px solid var(--line); aspect-ratio: 5 / 3; }
.spk__ph--logo img { max-height: 82%; max-width: 92%; width: auto; object-fit: contain; }
.spk__ph--logo img[src$="logo-iict.png"] { height: 132px; width: 132px; max-height: none; max-width: none; }
.spk__ph--txt { display: grid; place-items: center; padding: 1rem; background: linear-gradient(135deg, #173560, #0f2440); color: var(--on-ink); font: 800 clamp(1.5rem, 3vw, 2rem)/1.15 var(--display); text-align: center; aspect-ratio: 5 / 3; letter-spacing: -.01em; }
.spk__intro { font-size: .9375rem; line-height: 1.65; color: var(--text); }
.spk__talks { margin: .5rem 0 0; padding: .75rem 0 0; border-top: 1px solid var(--line); list-style: none; display: grid; gap: .5rem; font-size: .875rem; color: var(--muted); }
.spk__talks b { display: block; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gold-deep); font-weight: 700; margin-bottom: .1rem; }
.spk__talks li span { font-variant-numeric: tabular-nums; margin-right: .4rem; color: var(--gold-deep); font-weight: 600; }

/* organisation links */
a.logo__plate { text-decoration: none; color: inherit; }
.spk__link { align-self: flex-start; display: inline-flex; align-items: center; min-height: 44px; margin-top: .15rem; font-size: .875rem; font-weight: 600; color: var(--gold-deep); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1.5px; }
@media (hover: hover) and (pointer: fine) { .spk__link:hover { color: var(--text); } }

/* wide SVG logo (CunaeST): intrinsic size is small, so size it explicitly */
.spk__ph--logo:has(img[src$=".svg"]) { padding: .75rem; }
.spk__ph--logo img[src$=".svg"] { width: 94%; max-width: 94%; max-height: none; height: auto; }
.logo__plate img[src$=".svg"] { width: 220px; max-height: none; height: auto; }

/* phones take the small backgrounds (the -sm files were made for this and never referenced) */
@media (max-width: 640px) {
  .hero__img { background-image: url(../img/hero-sm.webp); }
  .venue__bg { background-image: url(../img/hero-sm.webp); }
}