:root {
  --paper: #f6f3ed;
  --paper-muted: #ece8df;
  --ink: #171b1f;
  --muted: #758091;
  --line: #d8d1c3;
  --red: #c7341f;
  --gold: #d5aa42;
  --white: #fffdfa;
  --dark: #11161a;
  --container: min(100% - 48px, 1280px);
  --header-h: 104px;
  --hero-y: clamp(44px, 7svh, 76px);
  --section-y: clamp(38px, 5svh, 64px);
  --card-pad: clamp(24px, 3.2svh, 34px);
  --serif: Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.6;
}

body.screen-page {
  height: 100svh;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

html[data-lang="uk"] .lang-en,
html[data-lang="en"] .lang-uk {
  display: none !important;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.narrow {
  max-width: 920px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(246, 243, 237, 0.94);
  backdrop-filter: blur(12px);
}

.screen-page .site-header {
  position: relative;
  top: auto;
}

main > section {
  display: grid;
  align-items: center;
}

.screen-page main {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior-y: contain;
  scroll-behavior: smooth;
  scroll-padding-top: 0;
  scroll-snap-type: y mandatory;
}

.screen-page main > section {
  min-height: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.screen-page > .site-footer {
  display: none;
}

.nav-bar {
  width: var(--container);
  margin: 0 auto;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
}

.language-switch button {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: 800 12px/1 var(--mono);
  letter-spacing: 0.14em;
}

html[data-lang="uk"] [data-lang-switch="uk"],
html[data-lang="en"] [data-lang-switch="en"] {
  color: var(--ink);
}

.nav-bar {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  min-width: min(410px, 42vw);
}

.brand-mark {
  width: 50px;
  height: 50px;
  display: inline-grid;
  place-items: center;
  border: 2px solid var(--ink);
  font: 900 13px/1 var(--mono);
}

.brand strong {
  display: block;
  font-size: 26px;
  line-height: 1;
}

.brand small,
.nav-links,
.button,
.kicker,
.section-index,
.footer-label,
.fact-panel dt,
.date-grid p,
.track-grid p,
.placeholder-list p,
.rule-grid strong,
.contact-grid p,
.archive-list a {
  font-family: var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 1.8vw, 28px);
  color: #252b32;
  font-size: 12px;
}

.nav-links a {
  transition: color 160ms ease;
}

.nav-links a:hover,
.nav-links .is-active {
  color: var(--red);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--ink);
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  display: block;
  margin: 3px 0;
  background: var(--ink);
  transition: transform 160ms ease, opacity 160ms ease;
}

.site-header.is-open .menu-toggle span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.site-header.is-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-open .menu-toggle span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.button {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  padding: 0 30px;
  font-size: 12px;
  font-weight: 800;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button-red {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}

.button-dark {
  border-color: var(--dark);
  background: var(--dark);
  color: var(--white);
}

.button-light {
  border-color: var(--white);
  color: var(--white);
}

.button-outline {
  background: transparent;
}

.button:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.hero,
.page-hero {
  padding: var(--hero-y) 0;
  background: var(--paper);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
  gap: clamp(38px, 6vw, 88px);
  align-items: center;
}

.kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
}

.kicker > span:first-child {
  width: 36px;
  height: 2px;
  background: var(--red);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
.page-hero h1 {
  max-width: 840px;
  margin-bottom: 22px;
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.02;
  font-weight: 500;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(40px, 4.7vw, 66px);
}

h1 em,
h2 em {
  color: var(--red);
  font-style: italic;
  font-weight: 500;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font: 13px/1.65 var(--mono);
  letter-spacing: 0.08em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.fact-panel {
  border-top: 4px solid var(--ink);
}

.fact-panel dl {
  margin: 0;
}

.fact-panel div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.fact-panel dt {
  color: var(--muted);
  font-size: 11px;
}

.fact-panel dd {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
}

.section {
  padding: var(--section-y) 0;
  background: var(--paper);
}

.section-muted {
  background: var(--paper-muted);
}

.section-heading {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 36px;
  align-items: end;
  margin-bottom: clamp(28px, 4svh, 52px);
}

.section-index {
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
}

.section-heading h2,
.cta-band h2,
.two-column h2 {
  margin-bottom: 0;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.05;
  font-weight: 500;
}

.date-grid,
.track-grid,
.rule-grid,
.contact-grid {
  display: grid;
  border: 1px solid var(--line);
  background: var(--white);
}

.date-grid {
  grid-template-columns: repeat(4, 1fr);
}

.date-grid article,
.track-grid article,
.rule-grid article,
.contact-grid article {
  padding: var(--card-pad);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.date-grid article:last-child,
.track-grid article:nth-child(2n),
.rule-grid article:last-child,
.contact-grid article:last-child {
  border-right: 0;
}

.date-grid p,
.track-grid p,
.contact-grid p {
  min-height: 42px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.committee-leads {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.committee-leads article {
  padding: var(--card-pad);
  background: var(--paper);
}

.committee-leads .organizing-card { grid-column: 1 / -1; }
.committee-leads article:not(.organizing-card) { text-align: center; }
.committee-leads p { margin-top: 0; font: 800 11px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--red); }
.committee-leads h2 { margin: 16px 0 4px; font-size: clamp(20px, 1.65vw, 27px); line-height: 1.12; }
.committee-leads span { color: var(--muted); }

.committee-portrait {
  width: clamp(140px, 12vw, 190px);
  height: clamp(140px, 12vw, 190px);
  aspect-ratio: 1;
  display: block;
  margin: 0 auto 22px;
  object-fit: cover;
  object-position: center;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--line), 0 10px 28px rgba(17, 22, 26, .08);
  filter: saturate(.9) contrast(1.02);
}

.committee-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}

.committee-list p {
  margin: 0;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

.committee-list p:nth-child(odd) { border-right: 1px solid var(--line); }
.committee-list span { display: block; margin-top: 3px; color: var(--muted); font: 12px/1.5 var(--sans); }

.home-leaders {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-bottom: 28px;
  border: 1px solid var(--line);
  background: var(--line);
}

.committee-intro {
  max-width: 920px;
  margin: -10px 0 26px;
  color: var(--muted);
  font: 13px/1.65 var(--mono);
  letter-spacing: 0.08em;
}

.home-leaders article {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
  padding: 18px;
  background: var(--paper-muted);
}

.home-leaders img {
  width: 72px;
  height: 72px;
  flex: 0 0 72px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--line);
}

.home-leaders p {
  margin: 0 0 6px;
  color: var(--red);
  font: 800 9px/1.4 var(--mono);
  letter-spacing: .11em;
  text-transform: uppercase;
}

.home-leaders h3 {
  margin: 0;
  font-size: clamp(17px, 1.4vw, 22px);
  line-height: 1.08;
}

.leader-affiliation {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font: 11px/1.4 var(--sans);
}

.date-grid strong {
  display: block;
  margin: 26px 0 8px;
  font-size: 46px;
  line-height: 1;
  font-weight: 500;
}

.date-grid span,
.track-grid span,
.archive-list p {
  color: var(--muted);
  font: 12px/1.7 var(--mono);
}

.track-grid {
  grid-template-columns: repeat(2, 1fr);
}

.track-grid article {
  position: relative;
  overflow: hidden;
  min-height: clamp(210px, 27svh, 260px);
  display: flex;
  flex-direction: column;
  padding: clamp(22px, 2.6svh, 28px);
}

.track-grid h3 {
  margin: 14px 0 24px;
  font-size: 26px;
  line-height: 1.22;
  font-weight: 500;
}

.track-grid article > span:last-child {
  margin-top: 0;
}

.track-grid p {
  min-height: 0;
  margin-bottom: 0;
}

.track-wide {
  grid-column: 1 / -1;
}

.track-art {
  position: relative;
  height: clamp(72px, 10svh, 96px);
  margin: -8px -8px 22px;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(117, 128, 145, 0.12) 1px, transparent 1px),
    linear-gradient(rgba(117, 128, 145, 0.12) 1px, transparent 1px),
    #f4f1ea;
  background-size: 24px 24px;
  overflow: hidden;
}

.track-art::before,
.track-art::after,
.track-art i {
  content: "";
  position: absolute;
  display: block;
}

.track-art-aerospace::before {
  width: 160px;
  height: 2px;
  left: 50%;
  top: 50%;
  background: var(--ink);
  transform: translate(-50%, -50%) rotate(-18deg);
}

.track-art-aerospace::after {
  width: 58px;
  height: 58px;
  left: 22%;
  top: 24%;
  border: 1px solid var(--red);
  border-radius: 50%;
}

.track-art-aerospace i:nth-child(1) {
  width: 48px;
  height: 14px;
  left: 54%;
  top: 42%;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-18deg) skewX(-28deg);
}

.track-art-aerospace i:nth-child(2) {
  width: 42px;
  height: 42px;
  right: 17%;
  bottom: 18%;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.track-art-aerospace i:nth-child(3) {
  width: 7px;
  height: 7px;
  right: 25%;
  top: 26%;
  background: var(--red);
}

.track-art-ai::before {
  inset: 22px 54px;
  border: 1px solid var(--ink);
  border-radius: 50%;
}

.track-art-ai::after {
  width: 78px;
  height: 78px;
  left: 50%;
  top: 50%;
  border: 1px dashed var(--red);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.track-art-ai i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink);
}

.track-art-ai i:nth-child(1) { left: 30%; top: 27%; }
.track-art-ai i:nth-child(2) { left: 46%; top: 55%; background: var(--red); }
.track-art-ai i:nth-child(3) { right: 28%; top: 30%; }
.track-art-ai i:nth-child(4) { left: 36%; bottom: 22%; }
.track-art-ai i:nth-child(5) { right: 34%; bottom: 26%; background: var(--red); }

.track-art-industry::before {
  width: 70%;
  height: 58px;
  left: 15%;
  bottom: 25px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.track-art-industry::after {
  width: 54px;
  height: 54px;
  right: 18%;
  top: 24px;
  border: 2px solid var(--red);
  transform: rotate(45deg);
}

.track-art-industry i {
  width: 42px;
  bottom: 25px;
  background: var(--ink);
}

.track-art-industry i:nth-child(1) { height: 28px; left: 22%; }
.track-art-industry i:nth-child(2) { height: 48px; left: 36%; }
.track-art-industry i:nth-child(3) { height: 72px; left: 50%; background: var(--red); }
.track-art-industry i:nth-child(4) {
  width: 150px;
  height: 1px;
  left: 18%;
  top: 34px;
  background: var(--muted);
}

.track-art-energy::before {
  width: 180px;
  height: 70px;
  left: 50%;
  top: 50%;
  border-top: 2px solid var(--red);
  border-radius: 50%;
  transform: translate(-50%, -48%) rotate(-10deg);
}

.track-art-energy::after {
  width: 34px;
  height: 92px;
  left: 50%;
  top: 18px;
  background: linear-gradient(180deg, transparent 0 18px, var(--ink) 18px 22px, transparent 22px 44px, var(--ink) 44px 48px, transparent 48px);
  transform: translateX(-50%) skewX(-14deg);
}

.track-art-energy i:nth-child(1) {
  width: 84px;
  height: 84px;
  left: 18%;
  top: 22%;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.track-art-energy i:nth-child(2) {
  width: 10px;
  height: 10px;
  right: 25%;
  top: 44%;
  background: var(--red);
}

.track-art-energy i:nth-child(3) {
  width: 150px;
  height: 1px;
  right: 14%;
  bottom: 28px;
  background: var(--muted);
}

.track-art-logistics {
  height: clamp(112px, 18svh, 150px);
}

.track-art-logistics::before {
  width: 82%;
  height: 2px;
  left: 9%;
  top: 64%;
  background: var(--ink);
}

.track-art-logistics::after {
  width: 74%;
  height: 68px;
  left: 13%;
  top: 22%;
  border: 1px solid var(--line);
  border-bottom: 0;
}

.track-art-logistics i {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--red);
  top: calc(64% - 5px);
}

.track-art-logistics i:nth-child(1) { left: 17%; }
.track-art-logistics i:nth-child(2) { left: 38%; background: var(--ink); }
.track-art-logistics i:nth-child(3) { left: 60%; background: var(--ink); }
.track-art-logistics i:nth-child(4) { right: 15%; }

.people-preview {
  display: grid;
  gap: 18px;
}

.placeholder-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.placeholder-list article {
  padding: 36px 0;
  border-bottom: 1px dashed var(--line);
}

.placeholder-list article:nth-child(odd) {
  padding-right: 44px;
}

.placeholder-list p {
  color: var(--red);
  font-size: 11px;
}

.placeholder-list h3 {
  font-size: 24px;
  font-style: italic;
  font-weight: 500;
}

.cta-band {
  padding: clamp(54px, 8svh, 74px) 0;
  background: var(--dark);
  color: var(--white);
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 42px;
  align-items: center;
}

.cta-grid p {
  max-width: 720px;
  color: #aab2bd;
  font: 14px/1.8 var(--mono);
}

.site-footer {
  padding: clamp(46px, 7svh, 70px) 0 clamp(32px, 5svh, 44px);
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.3fr;
  gap: 70px;
}

.footer-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.site-footer a {
  display: block;
  margin: 8px 0;
}

.compact {
  padding: 34px 0;
}

.two-column,
.venue-grid {
  display: grid;
  grid-template-columns: 1fr minmax(320px, 0.75fr);
  gap: 56px;
  align-items: start;
}

.two-column p,
.note-box h3 {
  color: var(--muted);
  font: 15px/1.8 var(--mono);
}

.note-box {
  padding: var(--card-pad);
  border: 1px solid var(--line);
  background: var(--white);
}

.note-box p {
  color: var(--red);
  font: 800 12px/1 var(--mono);
  letter-spacing: 0.16em;
}

.rule-grid,
.contact-grid {
  grid-template-columns: repeat(3, 1fr);
}

.rule-grid strong {
  color: var(--red);
  font-size: 13px;
}

.rule-grid p {
  margin: 30px 0 0;
  font-size: 22px;
  line-height: 1.35;
}

.venue-placeholder {
  min-height: clamp(280px, 52svh, 420px);
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #f8f5ee, #e5e0d6);
  color: var(--muted);
  font: 800 12px/1 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.archive-list article {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 34px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.archive-list strong {
  font-size: 40px;
  font-weight: 500;
}

.archive-list h2,
.contact-grid h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
  font-weight: 500;
}

.archive-note {
  margin-top: 32px;
}

@media (max-width: 980px) {
  :root {
    --header-h: 132px;
    --hero-y: clamp(42px, 6svh, 64px);
    --section-y: clamp(38px, 5svh, 58px);
  }

  .nav-bar {
    width: min(100% - 28px, 1280px);
  }

  .nav-bar,
  .nav-links {
    align-items: flex-start;
  }

  .nav-bar {
    flex-direction: column;
    padding: 18px 0;
  }

  .nav-links {
    width: 100%;
    flex-wrap: wrap;
    gap: 18px;
  }

  .brand {
    min-width: 0;
  }

  .hero-grid {
    min-height: auto;
  }

  .hero-grid,
  .section-heading,
  .two-column,
  .venue-grid,
  .cta-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .date-grid,
  .track-grid,
  .rule-grid,
  .contact-grid,
  .placeholder-list {
    grid-template-columns: 1fr;
  }

  .track-wide {
    grid-column: auto;
  }

  .date-grid article,
  .track-grid article,
  .rule-grid article,
  .contact-grid article {
    border-right: 0;
  }

  body.screen-page {
    height: auto;
    overflow: visible;
    display: block;
  }

  .screen-page main {
    min-height: 0;
    overflow: visible;
    scroll-snap-type: none;
  }

  .screen-page main > section {
    min-height: auto;
    scroll-snap-align: none;
  }

  .screen-page > .site-footer {
    display: block;
  }
}

@media (max-width: 980px) {
  .committee-leads { grid-template-columns: repeat(2, 1fr); }
  .home-leaders { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  :root {
    --container: min(100% - 28px, 1280px);
    --header-h: 0px;
    --hero-y: clamp(28px, 4svh, 42px);
    --section-y: clamp(34px, 5svh, 48px);
    --card-pad: clamp(22px, 4svh, 26px);
  }

  .site-header {
    position: static;
  }

  .nav-bar {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    min-height: auto;
    padding: 12px 0;
    gap: 12px;
  }

  .brand {
    width: auto;
    min-width: 0;
    gap: 12px;
  }

  .brand-mark {
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    font-size: 12px;
  }

  .brand small {
    max-width: 230px;
    margin-top: 5px;
    font-size: 10px;
    line-height: 1.35;
    letter-spacing: 0.14em;
  }

  .menu-toggle {
    display: grid;
  }

  .nav-links {
    grid-column: 1 / -1;
    gap: 13px 17px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    padding: 0;
    border-top: 0 solid var(--line);
    transition: max-height 220ms ease, opacity 160ms ease, padding 160ms ease, border-width 160ms ease;
  }

  .site-header.is-open .nav-links {
    max-height: 420px;
    opacity: 1;
    padding-top: 18px;
    border-top-width: 1px;
  }

  .nav-links > a:not(.button),
  .nav-links .language-switch {
    flex-basis: calc(50% - 9px);
  }

  .nav-links .language-switch {
    margin-left: 0;
  }

  .nav-links .button-dark {
    flex-basis: 100%;
    min-height: 46px;
    margin-top: 4px;
  }

  .hero,
  .page-hero,
  .section {
    padding: var(--section-y) 0;
  }

  .hero,
  .page-hero {
    padding: var(--hero-y) 0;
  }

  h1,
  .page-hero h1 {
    font-size: clamp(34px, 10vw, 42px);
  }

  .hero h1 {
    font-size: clamp(31px, 9vw, 38px);
    line-height: 1.04;
  }

  .section-heading h2,
  .cta-band h2,
  .two-column h2 {
    font-size: 38px;
  }

  .button {
    width: 100%;
  }

  .fact-panel div,
  .archive-list article {
    grid-template-columns: 1fr;
  }

  .date-grid article,
  .track-grid article,
  .rule-grid article,
  .contact-grid article {
    padding: var(--card-pad);
  }
}

@media (max-width: 640px) {
  .committee-list { grid-template-columns: 1fr; }
  .committee-list p:nth-child(odd) { border-right: 0; }
  .committee-leads { grid-template-columns: 1fr; }
  .committee-leads .organizing-card { grid-column: auto; }
  .home-leaders { grid-template-columns: 1fr; }
}

@media (max-height: 760px) {
  :root {
    --header-h: 82px;
    --hero-y: 34px;
    --section-y: 34px;
    --card-pad: 26px;
  }

  .nav-bar {
    min-height: 82px;
  }

  .button {
    min-height: 50px;
  }

  .hero-grid {
    min-height: auto;
  }

  .hero-actions {
    margin-top: 26px;
  }

  h1,
  .page-hero h1 {
    font-size: clamp(38px, 8svh, 58px);
    margin-bottom: 20px;
  }

  .hero h1 {
    font-size: clamp(36px, 7svh, 54px);
  }

  .section-heading h2,
  .cta-band h2,
  .two-column h2 {
    font-size: clamp(38px, 7svh, 58px);
  }

  .fact-panel div {
    padding: 16px 0;
  }

  .track-grid article {
    min-height: 210px;
  }

  .track-art {
    height: 72px;
    margin-bottom: 18px;
  }

  .track-art-logistics {
    height: 82px;
  }

  .track-grid h3 {
    margin-bottom: 20px;
  }

  .venue-placeholder {
    min-height: 280px;
  }
}

@media (max-height: 620px) {
  :root {
    --hero-y: 24px;
    --section-y: 28px;
    --card-pad: 22px;
  }

  .brand-mark {
    width: 44px;
    height: 44px;
  }

  .lead,
  .cta-grid p,
  .two-column p,
  .note-box h3 {
    line-height: 1.55;
  }

  h1,
  .page-hero h1 {
    font-size: clamp(34px, 9svh, 46px);
  }

  .hero h1 {
    font-size: clamp(32px, 8svh, 44px);
  }

  .section-heading h2,
  .cta-band h2,
  .two-column h2 {
    font-size: clamp(34px, 8svh, 48px);
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .date-grid strong {
    margin-top: 18px;
    font-size: 40px;
  }

  .track-grid article {
    min-height: 190px;
  }

  .track-art {
    height: 64px;
  }

  .track-art-logistics {
    height: 72px;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
  }

  .nav-bar {
    min-height: auto;
    padding: 12px 0;
  }

  .brand strong {
    font-size: 24px;
  }

  .button,
  .nav-links .button-dark {
    min-height: 46px;
  }

  .hero h1 {
    font-size: clamp(31px, 9vw, 38px);
    line-height: 1.04;
  }
}