:root {
  --ink: #172033;
  --body: #3f4a5a;
  --muted: #687386;
  --blue: #245f9b;
  --blue-dark: #194b7c;
  --blue-soft: #eaf2f9;
  --surface: #f6f8fb;
  --white: #ffffff;
  --line: #dce3eb;
  --line-dark: #cbd5df;
  --container: min(1080px, calc(100vw - 48px));
  --reading: 760px;
  --radius: 10px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  color: var(--body);
  background: var(--white);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: var(--blue);
  text-underline-offset: 3px;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

img,
svg {
  display: block;
}

:focus-visible {
  outline: 3px solid rgba(36, 95, 155, 0.35);
  outline-offset: 3px;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 9px 13px;
  color: var(--white);
  background: var(--blue-dark);
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform 150ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.site-brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
}

.site-mark {
  width: 40px;
  height: 40px;
  display: block;
  object-fit: contain;
}

.site-brand > span:last-child {
  display: grid;
  line-height: 1.1;
}

.site-brand strong {
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.015em;
}

.site-brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.68rem;
}

.primary-navigation {
  display: flex;
  align-items: center;
  gap: 25px;
}

.primary-navigation > a {
  color: #455164;
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 150ms ease;
}

.primary-navigation > a:hover,
.primary-navigation > a:focus-visible {
  color: var(--blue);
}

.primary-navigation .conference-link {
  min-height: 38px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--blue-dark);
  background: var(--blue-soft);
  border: 1px solid #d2e1ef;
  border-radius: 7px;
  font-weight: 600;
}

.conference-link svg,
.button svg {
  width: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line-dark);
  border-radius: 7px;
  cursor: pointer;
}

.nav-toggle > span:not(.sr-only) {
  width: 18px;
  height: 1.5px;
  margin: 4px auto;
  display: block;
  background: currentColor;
  transition: opacity 150ms ease, transform 150ms ease;
}

.hero {
  position: relative;
  overflow: hidden;
  background-color: var(--white);
  background-image:
    linear-gradient(180deg, #fff 0%, rgba(255, 255, 255, 0.96) 24%, rgba(255, 255, 255, 0.85) 58%, rgba(255, 255, 255, 0.78) 100%),
    url("../images/research/autonomous-driving.png");
  background-size: cover;
  background-position: center 65%;
  background-repeat: no-repeat;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: clamp(38px, 5vw, 58px) 0 clamp(60px, 7vw, 82px);
  text-align: center;
}

.conference-branding {
  margin-bottom: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.conference-branding img {
  width: min(100%, 850px);
  height: auto;
  object-fit: contain;
}

.hero-label,
.overline {
  margin: 0 0 15px;
  color: var(--blue);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 1020px;
  margin: 0 auto;
  color: var(--ink);
  font-size: clamp(2.8rem, 5.2vw, 4.15rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.045em;
}

.hero-summary {
  max-width: 810px;
  margin: 27px auto 0;
  color: #586477;
  font-size: clamp(1.04rem, 1.6vw, 1.18rem);
  line-height: 1.75;
}

.event-line {
  max-width: 900px;
  margin: 37px auto 0;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 13px 29px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.event-line span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #475366;
  font-size: 0.81rem;
  font-weight: 500;
}

.event-line svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  min-height: 44px;
  padding: 0 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 0.81rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 150ms ease, background 150ms ease, border-color 150ms ease;
}

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

.button-primary:hover,
.button-primary:focus-visible {
  color: var(--white);
  background: var(--blue-dark);
  border-color: var(--blue-dark);
}

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

.button-secondary:hover,
.button-secondary:focus-visible {
  color: var(--blue);
  border-color: var(--blue);
}

.framework {
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.framework-inner {
  padding: 31px 0;
  display: grid;
  grid-template-columns: minmax(220px, 0.67fr) minmax(0, 1.33fr);
  align-items: center;
  gap: clamp(38px, 6vw, 74px);
}

.framework-heading .overline {
  margin-bottom: 7px;
  font-size: 0.6rem;
}

.framework-heading h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.4;
}

.framework-flow {
  display: grid;
  grid-template-columns: 1fr 34px 1fr 34px 1fr;
  align-items: center;
  gap: 12px;
}

.framework-flow > div {
  min-width: 0;
  display: grid;
}

.framework-flow span {
  margin-bottom: 6px;
  color: var(--blue);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.framework-flow strong {
  color: var(--ink);
  font-size: 0.79rem;
  font-weight: 600;
}

.framework-flow small {
  margin-top: 1px;
  color: var(--muted);
  font-size: 0.68rem;
}

.framework-flow svg {
  width: 34px;
  fill: none;
  stroke: #9aa8b7;
  stroke-width: 1.1;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.section {
  padding: clamp(72px, 8vw, 94px) 0;
}

.section-muted {
  background: var(--surface);
  border-top: 1px solid #edf1f5;
  border-bottom: 1px solid #edf1f5;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: clamp(55px, 8vw, 105px);
}

.section-heading h2,
.panel-intro h2,
.conference-card h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 3.6vw, 2.7rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.033em;
}

.section-heading > p:last-child:not(.overline),
.section-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.prose {
  max-width: var(--reading);
}

.prose p {
  margin: 0 0 19px;
  color: #4d596b;
  font-size: 1.02rem;
  line-height: 1.82;
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose .lead {
  margin-bottom: 23px;
  color: var(--ink);
  font-size: 1.24rem;
  font-weight: 500;
  line-height: 1.65;
}

.section-title-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.4fr);
  align-items: end;
  gap: 64px;
}

.section-title-row > p {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.topic-list {
  margin-top: 53px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 54px;
}

.topic-list article {
  position: relative;
  min-height: 168px;
  padding: 25px 4px 27px 53px;
  border-top: 1px solid var(--line-dark);
}

.topic-list article:last-child {
  grid-column: 1 / -1;
  max-width: calc(50% - 27px);
}

.topic-list .topic-icon {
  position: absolute;
  top: 26px;
  left: 1px;
  width: 27px;
  height: 27px;
  opacity: 0.68;
}

.topic-list h3 {
  margin: 0 0 9px;
  color: var(--ink);
  font-size: 1.06rem;
  font-weight: 600;
  line-height: 1.45;
}

.topic-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.7;
}

.section-heading-centered {
  max-width: 780px;
  margin-inline: auto;
  text-align: center;
}

.section-heading-centered > p:last-child:not(.overline) {
  margin-top: 15px;
}

.speaker-grid {
  align-items: start;
  margin-top: 55px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.speaker-card {
  --portrait-size: 128px;
  min-width: 0;
  padding: 25px;
  display: grid;
  grid-template-columns: var(--portrait-size) minmax(0, 1fr);
  align-items: start;
  gap: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.speaker-photo {
  width: var(--portrait-size);
  height: var(--portrait-size);
  aspect-ratio: 1;
  display: block;
  background: #edf3f8;
  border-radius: 6px;
  object-fit: cover;
  object-position: var(--portrait-position, center top);
}

.speaker-slot {
  min-height: 240px;
  border-style: dashed;
  background: #fbfcfe;
}

.portrait-frame {
  overflow: hidden;
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: 25% center;
  transform: scale(1.65);
  transform-origin: 50% 30%;
}

.portrait-placeholder {
  display: grid;
  place-items: center;
  color: var(--blue);
  background: #edf3f8;
  border: 1px solid var(--line);
  font-size: 1.4rem;
  font-weight: 600;
}

.speaker-details {
  min-width: 0;
  min-height: var(--portrait-size);
  display: flex;
  flex-direction: column;
}

.speaker-type,
.talk > p {
  margin: 0;
  color: var(--blue);
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.speaker-details h3 {
  margin: 7px 0 0;
  color: var(--ink);
  font-size: 1.37rem;
  font-weight: 600;
  line-height: 1.3;
}

.affiliation {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

.affiliation span {
  margin-left: 5px;
  color: var(--blue);
  font-size: 0.64rem;
  font-weight: 700;
}

.talk {
  margin: 20px 0 19px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.talk h4 {
  margin: 6px 0 0;
  color: #354154;
  font-size: 0.84rem;
  font-weight: 500;
  line-height: 1.55;
}

.speaker-details > a {
  width: max-content;
  margin-top: 18px;
  color: var(--blue);
  font-size: 0.73rem;
  font-weight: 500;
  text-decoration-thickness: 1px;
}

.speaker-details > a:hover,
.speaker-details > a:focus-visible {
  color: var(--blue-dark);
}

.format-grid {
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
}

.format-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.format-list li {
  padding: 23px 0;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}

.format-list li > span {
  padding-top: 2px;
  color: var(--blue);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.format-list h3 {
  margin: 0 0 5px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 600;
}

.format-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.65;
}

.panel-card {
  padding: clamp(38px, 5vw, 54px);
  display: block;
  background: var(--blue-soft);
  border: 1px solid #d4e1ed;
  border-radius: 12px;
}

.panel-intro h2 {
  font-size: clamp(2rem, 3.2vw, 2.55rem);
}

.panel-intro > p:last-child {
  margin: 16px 0 0;
  color: #5a6779;
  font-size: 0.9rem;
  line-height: 1.7;
}

.panelist-list {
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
}

.panelist-list li {
  min-width: 0;
  min-height: 126px;
  padding: 17px 14px;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  grid-template-rows: auto auto 1fr;
  align-items: start;
  gap: 5px 14px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid #d4e0eb;
  border-radius: 8px;
}

.panelist-photo {
  grid-row: 1 / 4;
  width: 88px;
  height: 88px;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: var(--portrait-position, center top);
  border-radius: 5px;
}

.panelist-name {
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.4;
  text-decoration-color: #a4b7c9;
}

.panelist-name:hover,
.panelist-name:focus-visible {
  color: var(--blue);
}

.panelist-affiliation {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.panelist-list small {
  margin-top: 0;
  color: var(--blue);
  font-size: 0.75rem;
  line-height: 1.5;
}

.organizer-unit {
  margin-top: 28px;
  padding: 25px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 34px;
  background: var(--white);
  border: 1px solid #d4e0eb;
  border-radius: 8px;
}

.organizer-logos {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 4fr);
  width: 100%;
  max-width: 380px;
  align-items: center;
  gap: 20px;
}

.lab-logo {
  display: block;
  width: 100%;
  max-width: 72px;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
}

.department-logo {
  width: 100%;
  height: auto;
  aspect-ratio: 499.83 / 104.61;
  object-fit: contain;
}

.organizer-unit .overline {
  margin-bottom: 5px;
}

.organizer-unit h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.13rem;
  line-height: 1.4;
}

.organizer-unit p:not(.overline) {
  margin: 8px 0 0;
  color: var(--body);
  font-size: 0.9rem;
  line-height: 1.65;
}

.registration-grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  align-items: start;
  gap: 52px;
}

.registration-copy > p {
  margin: 0 0 22px;
  font-size: 1rem;
}

.registration-steps {
  margin: 0 0 24px;
  padding-left: 24px;
}

.registration-steps li {
  margin-bottom: 18px;
  padding-left: 7px;
}

.registration-steps strong {
  color: var(--ink);
}

.registration-copy .registration-note {
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-card {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.contact-card h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.4rem;
}

.contact-card p:not(.overline) {
  margin: 12px 0;
  font-size: 0.9rem;
}

.contact-email {
  font-weight: 600;
  overflow-wrap: anywhere;
}

.contact-card .contact-note {
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.acknowledgements {
  margin-top: 48px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.acknowledgements h3 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 1rem;
}

.acknowledgements p {
  max-width: 850px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.conference-section {
  padding: clamp(60px, 7vw, 82px) 0;
}

.venue-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  overflow: hidden;
  background: #1b2a3d;
  border-radius: 10px;
}

.venue-photo {
  min-width: 0;
  margin: 0;
  position: relative;
  background: #0b5c81;
}

.venue-photo img {
  width: 100%;
  height: 100%;
  min-height: 350px;
  object-fit: cover;
  object-position: center;
}

.venue-photo figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 27px 20px 13px;
  color: var(--white);
  background: linear-gradient(transparent, rgba(10, 25, 42, 0.85));
  font-size: 0.75rem;
  line-height: 1.5;
}

.conference-card {
  min-width: 0;
  padding: 38px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  color: var(--white);
}

.conference-card .overline {
  margin-bottom: 7px;
  color: #9cc5e6;
}

.conference-card h2 {
  color: var(--white);
  font-size: 2.05rem;
}

.conference-card .venue-details {
  margin: 15px 0 24px;
  color: #c3ccd7;
  font-size: 0.82rem;
  line-height: 1.65;
}

.venue-details strong {
  color: var(--white);
}

.conference-card small {
  margin-top: 12px;
  color: #acb7c4;
  font-size: 0.75rem;
}

.site-footer {
  padding: 45px 0 24px;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.footer-main {
  padding-bottom: 34px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 50px;
}

.footer-main strong {
  display: block;
  max-width: 500px;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 600;
}

.footer-main p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.75rem;
}

.footer-main nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 20px;
}

.footer-main nav a,
.footer-meta a {
  color: #566274;
  font-size: 0.73rem;
  text-decoration: none;
}

.footer-main nav a:hover,
.footer-main nav a:focus-visible,
.footer-meta a:hover,
.footer-meta a:focus-visible {
  color: var(--blue);
  text-decoration: underline;
}

.footer-meta {
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 25px;
  color: #7a8493;
  border-top: 1px solid var(--line);
  font-size: 0.66rem;
}

.footer-meta p {
  margin: 0;
}

@media (max-width: 960px) {
  .panelist-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .primary-navigation {
    gap: 18px;
  }

  .primary-navigation > a {
    font-size: 0.77rem;
  }

  .framework-inner {
    grid-template-columns: 1fr;
    gap: 21px;
  }

  .content-grid {
    gap: 55px;
  }

  .speaker-card {
    --portrait-size: 112px;
    padding: 22px;
    gap: 18px;
  }
}

@media (max-width: 820px) {
  .organizer-unit,
  .registration-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .department-logo {
    max-width: 400px;
  }
  :root {
    --container: min(100% - 36px, 700px);
  }

  .nav-toggle {
    display: block;
  }

  .nav-toggle[aria-expanded="true"] > span:nth-child(2) {
    transform: translateY(5.5px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] > span:nth-child(3) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] > span:nth-child(4) {
    transform: translateY(-5.5px) rotate(-45deg);
  }

  .primary-navigation {
    position: fixed;
    inset: 70px 0 auto;
    max-height: 0;
    padding: 0 18px;
    display: grid;
    gap: 0;
    overflow: hidden;
    visibility: hidden;
    opacity: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    transition: max-height 180ms ease, padding 180ms ease, opacity 150ms ease, visibility 150ms ease;
  }

  .primary-navigation.is-open {
    max-height: calc(100vh - 70px);
    padding-block: 12px 20px;
    overflow-y: auto;
    visibility: visible;
    opacity: 1;
  }

  .primary-navigation > a {
    min-height: 46px;
    padding: 0 4px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #edf1f5;
    font-size: 0.83rem;
  }

  .primary-navigation .conference-link {
    margin-top: 10px;
    justify-content: center;
    border-bottom: 1px solid #d2e1ef;
  }

  .content-grid,
  .format-grid,
  .section-title-row,
  .panel-card {
    grid-template-columns: 1fr;
  }

  .content-grid,
  .format-grid {
    gap: 39px;
  }

  .section-title-row {
    align-items: start;
    gap: 18px;
  }

  .section-title-row > p {
    max-width: 560px;
  }

  .speaker-grid {
    grid-template-columns: 1fr;
  }

  .speaker-card {
    --portrait-size: 144px;
  }

  .panelist-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .venue-card {
    grid-template-columns: 1fr;
  }

  .venue-photo img {
    height: auto;
    min-height: 0;
    aspect-ratio: 2 / 1;
  }
}

@media (max-width: 620px) {
  .organizer-unit,
  .contact-card {
    padding: 20px;
  }
  :root {
    --container: calc(100% - 28px);
  }

  html {
    scroll-padding-top: 76px;
  }

  .header-inner {
    min-height: 64px;
  }

  .site-mark {
    width: 36px;
    height: 36px;
  }

  .site-brand strong {
    font-size: 0.78rem;
  }

  .site-brand small {
    font-size: 0.63rem;
  }

  .primary-navigation {
    inset: 64px 0 auto;
  }

  .primary-navigation.is-open {
    max-height: calc(100vh - 64px);
  }

  .conference-branding {
    margin-bottom: 28px;
  }

  .hero-content {
    padding: 30px 0 58px;
  }

  .hero h1 {
    font-size: clamp(2.25rem, 11vw, 3rem);
    line-height: 1.12;
  }

  .hero h1 br {
    display: none;
  }

  .hero-summary {
    margin-top: 21px;
    font-size: 0.98rem;
    line-height: 1.7;
  }

  .event-line {
    margin-top: 28px;
    padding: 16px 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .event-line span {
    text-align: left;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .framework-inner {
    padding: 27px 0;
  }

  .framework-flow {
    grid-template-columns: 1fr;
    gap: 13px;
  }

  .framework-flow > div {
    position: relative;
    padding-left: 38px;
  }

  .framework-flow span {
    position: absolute;
    top: 2px;
    left: 0;
  }

  .framework-flow svg {
    display: none;
  }

  .section {
    padding: 58px 0;
  }

  .section-heading h2,
  .panel-intro h2 {
    font-size: 1.92rem;
  }

  .prose p {
    font-size: 0.96rem;
    line-height: 1.78;
  }

  .prose .lead {
    font-size: 1.1rem;
  }

  .topic-list {
    margin-top: 40px;
    grid-template-columns: 1fr;
  }

  .topic-list article,
  .topic-list article:last-child {
    min-height: 0;
    max-width: none;
    grid-column: auto;
  }

  .section-heading-centered {
    text-align: left;
  }

  .speaker-grid {
    margin-top: 40px;
  }

  .speaker-card {
    --portrait-size: 144px;
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .speaker-details {
    min-height: 0;
  }

  .panel-card {
    padding: 29px 22px;
  }

  .panelist-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .panelist-list li {
    padding: 16px 12px;
  }

  .conference-card {
    padding: 30px 23px;
  }

  .conference-card h2 {
    font-size: 1.85rem;
  }

  .footer-main,
  .footer-meta {
    flex-direction: column;
  }

  .footer-main {
    gap: 27px;
  }

  .footer-main nav {
    justify-content: flex-start;
  }

  .footer-meta {
    gap: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}