img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}
h1,
h2,
h3 {
  color: #000;
  margin: 0 0 var(--space-24);
}
p {
  margin: 0 0 var(--space-16);
}
ul {
  margin: var(--space-16) 0 var(--space-24);
  padding-left: var(--space-24);
}
li {
  margin-bottom: var(--space-8);
}
li p {
  margin: 0;
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: var(--section-space) var(--gutter);
  background: var(--brand-navy);
}
.hero > .wave-background {
  z-index: -1;
}
.hero-content {
  width: min(100%, 720px);
  margin: auto;
}
.brand-panel,
.intro-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.brand-panel {
  padding: var(--card-padding);
}
.event-logo {
  width: min(100%, 550px);
  margin: 0 auto var(--space-32);
}
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-8) var(--space-24);
  font-size: var(--font-small);
  font-weight: var(--weight-heading);
}
nav a {
  color: inherit;
  text-decoration-color: var(--accent);
}
.intro-panel {
  margin-top: var(--space-32);
  padding: var(--card-padding);
}
.intro-panel h1 {
  text-align: center;
  margin-bottom: var(--space-32);
}
.intro-panel p {
  text-align: left;
}
.intro-panel p:last-child {
  margin-bottom: 0;
}

.section {
  padding: var(--section-space) var(--gutter);
}
.content {
  max-width: var(--content-width);
  margin-inline: auto;
}
.shaded {
  background: var(--surface-alt);
}
.shaded :is(h1, h2, h3) {
  color: var(--accent);
}
.section-heading {
  text-align: center;
  margin-bottom: var(--space-48);
}
.section-heading p {
  margin: 0;
}
.event-date {
  display: inline-block;
  max-width: 100%;
  border: 0.1em solid var(--accent);
  border-radius: 50%;
  padding: 0.08em 0.6em;
  margin-bottom: var(--space-16);
}
.register-link {
  font-size: var(--font-body);
}
.section-title {
  text-align: center;
  margin-bottom: var(--space-48);
}
.title-mark {
  display: inline-block;
  position: relative;
  padding-bottom: 0.25em;
  --underline-color: var(--accent);
}
.shaded .title-mark {
  --underline-color: #000;
}
.title-mark::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 0.22em;
  border-top: 0.12em solid var(--underline-color);
  border-radius: 50% 50% 0 0;
  transform-origin: left;
}
.program-columns {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: var(--space-64);
}
.program-poster {
  text-align: center;
}
.program-poster h3 {
  margin-bottom: var(--space-32);
  font-size: var(--font-body);
}
.program-poster img {
  width: 100%;
}
.prose p {
  text-align: left;
}
.prose h3:not(:first-child) {
  margin-top: var(--space-32);
}
.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-64);
}
.align-center {
  align-items: center;
}
.networking-photo {
  width: 100%;
}

.previous-events {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-48);
}
.past-event {
  display: flex;
  flex-direction: column;
}
.past-event > h3 {
  font-size: var(--font-heading);
  text-align: center;
}
.past-event-description {
  flex: 1;
}
.past-event > p {
  margin-top: var(--space-24);
}
.video-preview {
  aspect-ratio: 16 / 9;
  position: relative;
  background: var(--brand-navy);
  overflow: clip;
}
.video-preview button {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  cursor: pointer;
  background: none;
}
.video-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}
.play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68px;
  height: 48px;
  border-radius: var(--radius);
  background: #212121cc;
  display: grid;
  place-items: center;
}
.play-icon::before {
  content: "";
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 16px solid #fff;
  margin-left: 4px;
}
.video-preview button:hover .play-icon,
.video-preview button:focus-visible .play-icon {
  background: #f00;
}
.video-preview iframe {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.sponsors {
  padding-bottom: var(--space-24);
}
.sponsors .section-title {
  margin-bottom: var(--space-24);
}
.sponsors > .content > p,
.organization p {
  text-align: left;
}
.sponsor-tier {
  margin-top: var(--space-48);
}
.sponsor-tier h3 {
  margin-bottom: var(--space-24);
}
.sponsor-tier hr {
  height: 1px;
  border: 0;
  background: var(--line);
  margin: 0 0 var(--space-24);
}
.logo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-32) var(--space-48);
}
.logo-row a {
  display: grid;
  place-items: center;
  min-width: 0;
}
.logo-row img {
  object-fit: contain;
  width: 100%;
  height: 100%;
}
.sponsor-tier .logo-row {
  column-gap: var(--space-32);
}
.sponsor-tier .logo-row img {
  width: var(--art-width);
}
.platinum {
  --tier-scale: 1;
}
.gold {
  --tier-scale: 0.9;
}
.silver {
  --tier-scale: 0.8;
}
.bronze {
  --tier-scale: 0.7;
}
.platinum a {
  width: 250px;
  height: 110px;
}
.gold a {
  width: 240px;
  height: 90px;
}
.silver a {
  width: 225px;
  height: 78px;
}
.bronze a {
  width: 195px;
  height: 64px;
}
/* Optical widths account for each mark's visible artwork and stroke weight. */
.logo-aws {
  --art-width: 66%;
}
.logo-classiq {
  --art-width: 105%;
}
.logo-hpe {
  --art-width: 79%;
}
.logo-planqc {
  --art-width: 110%;
}
.logo-neqxt {
  --art-width: 80%;
}
.logo-quandela {
  --art-width: 92%;
}
.logo-qudora {
  --art-width: 90%;
}
.logo-xanadu {
  --art-width: 100%;
}
.logo-infineon {
  --art-width: 71.79%;
}
.logo-iqm {
  --art-width: 64.1%;
}
.logo-psiquantum {
  --art-width: 94.87%;
}
.logo-quantinuum {
  --art-width: 112.82%;
  max-width: none;
}
.logo-quera {
  --art-width: 79.49%;
}
.organizers {
  margin: var(--space-48) 0;
  gap: var(--space-48) var(--space-64);
}
.organizers a {
  width: 250px;
  height: 120px;
}
.organizers img {
  width: var(--art-width);
}
.organizer-mqsc {
  --art-width: 92%;
}
.organizer-tum {
  --art-width: 86%;
}
.organizer-mqv {
  --art-width: 85%;
}
.site-footer {
  text-align: center;
  padding: var(--space-48) var(--gutter) var(--space-32);
}
.site-footer > a {
  display: inline-block;
}
.site-footer img {
  width: 110px;
  border-radius: 0;
}
.site-footer h2 {
  font-size: var(--font-heading);
  margin: var(--space-24) 0 var(--space-16);
}
.site-footer p {
  margin: 0;
}

@media (max-width: 850px) {
  .program-columns,
  .two-columns {
    gap: var(--space-32);
  }
  .previous-events {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-48);
  }
  .past-event {
    max-width: 580px;
    width: 100%;
    margin-inline: auto;
  }
  .logo-row {
    gap: var(--space-24) var(--space-32);
  }
}

@media (max-width: 640px) {
  .event-logo {
    margin-bottom: var(--space-24);
  }
  nav {
    gap: var(--space-8) var(--space-16);
  }
  .intro-panel h1 {
    margin-bottom: var(--space-24);
  }
  .section-title {
    margin-bottom: var(--space-32);
  }
  .program-columns,
  .two-columns {
    grid-template-columns: 1fr;
  }
  .program-poster {
    max-width: 440px;
    margin-inline: auto;
  }
  .sponsor-tier .logo-row a {
    width: calc((50% - 16px) * var(--tier-scale));
    max-width: calc(220px * var(--tier-scale));
    height: calc(76px * var(--tier-scale));
  }
  .organizers a {
    width: 250px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(36px);
    transition:
      opacity 0.75s ease-out,
      transform 0.75s ease-out;
  }
  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
  .logo-row a:nth-child(2) {
    transition-delay: 0.08s;
  }
  .logo-row a:nth-child(3) {
    transition-delay: 0.16s;
  }
  .logo-row a:nth-child(4) {
    transition-delay: 0.24s;
  }
  .logo-row a:nth-child(5) {
    transition-delay: 0.32s;
  }
  .title-mark.animated.is-visible::after {
    animation: draw-underline 0.5s ease-out both;
  }
  @keyframes draw-underline {
    from {
      transform: scaleX(0);
    }
    to {
      transform: scaleX(1);
    }
  }
}