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: .1em solid var(--accent); border-radius: 50%; padding: .08em .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: .25em; --underline-color: var(--accent); }
.shaded .title-mark { --underline-color: #000; }
.title-mark::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: .22em; border-top: .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: .9; }
.silver { --tier-scale: .8; }
.bronze { --tier-scale: .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 .75s ease-out, transform .75s ease-out; }
  .reveal.is-visible { opacity: 1; transform: none; }
  .logo-row a:nth-child(2) { transition-delay: .08s; }
  .logo-row a:nth-child(3) { transition-delay: .16s; }
  .logo-row a:nth-child(4) { transition-delay: .24s; }
  .logo-row a:nth-child(5) { transition-delay: .32s; }
  .title-mark.animated.is-visible::after { animation: draw-underline .5s ease-out both; }
  @keyframes draw-underline { from { transform: scaleX(0); } to { transform: scaleX(1); } }
}