:root {
  --navy: #17345f;
  --blue: #3166d5;
  --teal: #00a6a6;
  --mint: #65d6c1;
  --coral: #ff6b6b;
  --orange: #ff9f43;
  --yellow: #ffd166;
  --violet: #7b61ff;
  --cream: #fffaf0;
  --soft: #f4f8ff;
  --ink: #17223b;
  --muted: #61708a;
  --line: #dfe7f3
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px
}
body {
  overflow-x: hidden;
  color: var(--ink);
  background: #fff;
  font-family: Inter, "Noto Sans", "Helvetica Neue", Arial, sans-serif
}
a {
  color: var(--blue)
}
a:focus-visible, button:focus-visible {
  outline: 3px solid #111;
  outline-offset: 4px
}
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 2000;
  padding: .75rem 1rem;
  color: #fff;
  background: #000
}
.skip-link:focus {
  top: 1rem
}
.site-nav {
  background: rgba(23, 52, 95, .94);
  box-shadow: 0 8px 28px rgba(20, 45, 90, .16);
  backdrop-filter: blur(14px)
}
.navbar-brand {
  max-width: 72%;
  font-weight: 800
}
.nav-register {
  --bs-btn-color: #17223b;
  --bs-btn-bg: var(--yellow);
  --bs-btn-border-color: var(--yellow);
  --bs-btn-hover-color: #17223b;
  --bs-btn-hover-bg: #ffe08a;
  --bs-btn-hover-border-color: #ffe08a;
  border-radius: 999px;
  font-weight: 800
}
.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(125deg, #17345f 0%, #3166d5 46%, #7b61ff 100%)
}
.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 82% 18%, rgba(255, 209, 102, .45), transparent 22%), radial-gradient(circle at 12% 82%, rgba(101, 214, 193, .35), transparent 25%)
}
.hero:after {
  content: "";
  position: absolute;
  right: -8rem;
  bottom: -14rem;
  width: 34rem;
  height: 34rem;
  border-radius: 42% 58% 62% 38%/45% 40% 60% 55%;
  background: linear-gradient(145deg, rgba(255, 107, 107, .5), rgba(255, 159, 67, .25));
  animation: floatBlob 9s ease-in-out infinite alternate
}
.hero .container {
  position: relative;
  z-index: 1
}
.eyebrow {
  display: inline-flex;
  gap: .55rem;
  align-items: center;
  margin-bottom: 1.25rem;
  color: #e55757;
  font-size: .82rem;
  font-weight: 900;
  letter-spacing: .15em;
  text-transform: uppercase
}
.hero .eyebrow {
  color: #fff0a8
}
.eyebrow:before {
  content: "";
  width: 2.25rem;
  height: 3px;
  border-radius: 999px;
  background: currentColor
}
.hero h1 {
  max-width: 980px;
  margin-bottom: 1.4rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.45rem, 3vw, 5.4rem);
  line-height: 1.01;
  text-wrap: balance;
  text-shadow: 0 12px 35px rgba(22, 30, 70, .2)
}
.hero-lead {
  max-width: 760px;
  color: rgba(255, 255, 255, .9);
  font-size: clamp(1.05rem, 2vw, 1.38rem)
}
.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 1.6rem;
  margin-top: 2rem;
  padding: 1.15rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 20px;
  background: rgba(255, 255, 255, .13);
  box-shadow: 0 16px 40px rgba(15, 30, 80, .12);
  backdrop-filter: blur(12px)
}
.event-meta strong {
  display: block
}
.event-meta span {
  color: rgba(255, 255, 255, .75);
  font-size: .84rem
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem
}
.btn-coral {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--coral);
  --bs-btn-border-color: var(--coral);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: #ef5555;
  --bs-btn-hover-border-color: #ef5555;
  border-radius: 999px;
  box-shadow: 0 12px 30px rgba(255, 107, 107, .3);
  font-weight: 900
}
.hero .btn-outline-light {
  border-radius: 999px;
  font-weight: 800
}
.scroll-cue {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-top: 2rem;
  color: rgba(255, 255, 255, .8);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase
}
.scroll-cue span {
  position: relative;
  width: 1.4rem;
  height: 2.25rem;
  border: 2px solid rgba(255, 255, 255, .7);
  border-radius: 999px
}
.scroll-cue span:after {
  content: "";
  position: absolute;
  top: .4rem;
  left: 50%;
  width: .3rem;
  height: .3rem;
  border-radius: 50%;
  background: #fff;
  transform: translateX(-50%);
  animation: scrollDot 1.7s ease-in-out infinite
}
.section {
  position: relative;
  padding: 6rem 0
}
.section-soft {
  background: linear-gradient(180deg, var(--soft), #fffaf6)
}
.section-title {
  margin-bottom: .9rem;
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 4vw, 3.35rem)
}
.section-intro {
  max-width: 780px;
  color: var(--muted);
  font-size: 1.07rem
}
.venue-card {
  padding: 2rem;
  border: 0;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(42, 76, 130, .11)
}
.venue-card:before {
  content: "";
  display: block;
  width: 4rem;
  height: .45rem;
  margin-bottom: 1.25rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal), var(--yellow), var(--coral))
}
.venue-card h3 {
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif
}
.speaker-card {
  height: 100%;
  overflow: hidden;
  border: 0;
  border-radius: 24px;
  box-shadow: 0 18px 42px rgba(34, 64, 120, .12);
  transition: transform .35s ease, box-shadow .35s ease
}
.speaker-card:hover {
  transform: translateY(-10px) rotate(-.4deg);
  box-shadow: 0 28px 55px rgba(34, 64, 120, .18)
}
.speaker-photo {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: center top;
  background: #e9eef2;
  transition: transform .55s ease
}
.speaker-card:hover .speaker-photo {
  transform: scale(1.035)
}
.speaker-card .card-body {
  position: relative;
  padding: 1.5rem
}
.speaker-card .card-body:before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.5rem;
  width: 3.5rem;
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--coral), var(--orange))
}
.speaker-card h3 {
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem
}
.affiliation {
  min-height: 3rem;
  color: var(--teal);
  font-weight: 800
}
.talk-title {
  color: #52617b;
  font-size: .94rem
}
.agenda-wrap {
  overflow: hidden;
  border-top: 6px solid transparent;
  border-radius: 22px;
  background: linear-gradient(#fff, #fff) padding-box, linear-gradient(90deg, var(--teal), var(--yellow), var(--coral), var(--violet)) border-box;
  box-shadow: 0 20px 50px rgba(34, 64, 120, .11)
}
.agenda-row {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
  transition: background .25s ease, transform .25s ease
}
.agenda-row:hover {
  position: relative;
  z-index: 1;
  background: #f8fbff;
  transform: translateX(6px)
}
.agenda-row:last-child {
  border-bottom: 0
}
.agenda-time {
  padding: 1.1rem 1.25rem;
  color: var(--navy);
  background: #f3f7ff;
  font-weight: 900;
  font-variant-numeric: tabular-nums
}
.agenda-content {
  padding: 1.1rem 1.35rem
}
.agenda-content h3 {
  margin: 0 0 .3rem;
  color: var(--navy);
  font-size: 1.05rem
}
.agenda-content p {
  margin: 0;
  color: var(--muted)
}
.agenda-row.break > * {
  background: #fff7df
}
.badge-session {
  display: inline-block;
  margin-bottom: .45rem;
  padding: .26rem .58rem;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase
}
.registration-section {
  background: linear-gradient(135deg, #fff5e8, #eef7ff)
}
.registration-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(2rem, 5vw, 4rem);
  border-radius: 30px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(35, 70, 130, .13)
}
.registration-action {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: center;
  gap: .65rem
}
.registration-action small {
  color: var(--muted)
}
.btn-registration-pending {
  border: 2px dashed var(--coral);
  border-radius: 999px;
  color: #b33f4a;
  background: #fff4f4;
  font-weight: 900;
  cursor: not-allowed
}
footer {
  padding: 2.4rem 0;
  color: rgba(255, 255, 255, .78);
  background: linear-gradient(110deg, #17345f, #243d7d)
}
footer strong {
  color: #fff
}
[data-reveal], [data-reveal-item] {
  opacity: 0;
  transform: translateY(42px);
  transition: opacity .8s cubic-bezier(.2, .7, .2, 1), transform .8s cubic-bezier(.2, .7, .2, 1)
}
[data-reveal-item] {
  transition-delay: var(--reveal-delay, 0ms)
}
.is-visible {
  opacity: 1;
  transform: none
}
@keyframes floatBlob {
  to {
    transform: translate(-2rem, -1.5rem) rotate(9deg);
    border-radius: 55% 45% 42% 58%/38% 58% 42% 62%
  }
}
@keyframes scrollDot {
  0% {
    opacity: 0;
    transform: translate(-50%, 0)
  }
  35% {
    opacity: 1
  }
  100% {
    opacity: 0;
    transform: translate(-50%, 1rem)
  }
}
@media(max-width:991.98px) {
  .nav-register {
    display: inline-block;
    margin-top: .5rem
  }
  .registration-card {
    align-items: flex-start;
    flex-direction: column
  }
  .registration-action {
    align-items: flex-start
  }
}
@media(max-width:767.98px) {
  .hero {
    min-height: auto;
    padding: 8.5rem 0 4.8rem
  }
  .section {
    padding: 4.5rem 0
  }
  .agenda-row {
    grid-template-columns: 1fr
  }
  .agenda-time {
    padding-bottom: .65rem
  }
  .agenda-content {
    padding-top: .65rem
  }
  .event-meta {
    border-radius: 16px
  }
  .registration-card {
    border-radius: 22px
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto
  }
  *, *:before, *:after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important
  }
  [data-reveal], [data-reveal-item] {
    opacity: 1;
    transform: none
  }
}
/* v1.3 hero science visual + speaker composition */
.hero {
  background-image: linear-gradient(90deg, rgba(14, 34, 76, .92) 0%, rgba(34, 67, 145, .75) 52%, rgba(67, 47, 154, .54) 100%), url('../images/hero-science.svg');
  background-size: cover;
  background-position: center
}
.hero:before {
  background: radial-gradient(circle at 78% 22%, rgba(255, 209, 102, .24), transparent 24%), radial-gradient(circle at 14% 82%, rgba(101, 214, 193, .22), transparent 28%)
}
.hero-copy {
  position: relative;
  z-index: 3
}
.hero-speakers {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: end;
  gap: .65rem;
  min-height: 500px;
  padding: 2rem 0;
  isolation: isolate
}
.hero-speaker {
  position: relative;
  width: 100%;
  height: 420px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 18px;
  opacity: 0;
  transform: translateY(34px);
  box-shadow: 0 24px 50px rgba(8, 18, 55, .28);
  animation: speakerGather .85s cubic-bezier(.2, .75, .25, 1) forwards
}
.hero-speaker img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top
}
.hero-speaker-1 {
  animation-delay: .15s
}
.hero-speaker-2 {
  animation-delay: .38s
}
.hero-speaker-3 {
  animation-delay: .61s
}
.hero-speaker-4 {
  animation-delay: .84s
}
@keyframes speakerGather {
  to {
    opacity: 1;
    transform: none
  }
}
.speaker-card {
  overflow: visible;
  background: transparent;
  box-shadow: none;
  text-align: center
}
.speaker-card:hover {
  box-shadow: none
}
.speaker-photo {
  display: block;
  width: 220px;
  height: 220px;
  max-width: 78vw;
  margin: 0 auto 1.2rem;
  aspect-ratio: 1/1;
  border: 8px solid #fff;
  border-radius: 50% !important;
  object-fit: cover;
  object-position: center top;
  clip-path: circle(50% at 50% 50%);
  box-shadow: 0 18px 42px rgba(34, 64, 120, .18)
}
.speaker-card:hover .speaker-photo {
  transform: scale(1.035)
}
.speaker-card .card-body {
  padding: 1rem
}
.speaker-card .card-body:before {
  left: 50%;
  transform: translateX(-50%)
}
.affiliation {
  min-height: 0
}
.agenda-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem
}
.agenda-toggle {
  flex: 0 0 auto;
  border: 2px solid var(--blue);
  border-radius: 999px;
  color: var(--blue);
  font-weight: 800
}
.agenda-toggle:hover, .agenda-toggle:focus-visible {
  color: #fff;
  background: var(--blue)
}
.agenda-row {
  position: relative;
  overflow: hidden
}
.agenda-row:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: linear-gradient(var(--teal), var(--violet));
  transform: scaleY(0);
  transform-origin: center;
  transition: transform .28s ease
}
.agenda-row:hover:before {
  transform: scaleY(1)
}
.agenda-wrap.compact .agenda-row {
  grid-template-columns: 8rem minmax(0, 1fr)
}
.agenda-wrap.compact .agenda-row:not(.break) .agenda-content {
  padding-top: .72rem;
  padding-bottom: .72rem
}
.agenda-wrap.compact .agenda-row:not(.break) .agenda-content p {
  display: none
}
.agenda-wrap.compact .agenda-row:not(.break) .agenda-time {
  padding-top: .72rem;
  padding-bottom: .72rem
}
@media(max-width:1199.98px) {
  .hero-speakers {
    min-height: 430px;
    gap: .5rem
  }
  .hero-speaker {
    height: 360px
  }
}
@media(max-width:991.98px) {
  .hero-speakers {
    max-width: 720px;
    min-height: 0;
    margin: 0 auto;
    padding-top: 0
  }
  .hero-speaker {
    height: 330px
  }
}
@media(max-width:575.98px) {
  .hero-speakers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .55rem
  }
  .hero-speaker {
    height: 260px;
    border-radius: 14px
  }
  .agenda-heading {
    align-items: flex-start;
    flex-direction: column
  }
  .agenda-wrap.compact .agenda-row {
    grid-template-columns: 1fr
  }
}
@media(prefers-reduced-motion:reduce) {
  .hero-speaker {
    opacity: 1;
    transform: none;
    animation: none
  }
  .agenda-row:before {
    transition: none
  }
}
/* v1.5 requested hero refinements */
.hero .event-meta {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none
}
.hero-speaker {
  border-radius: 0 !important
}
/* v1.6 brighter deep-green theme + animated dot/line hero */ :root {
  --navy: #145c4a;
  --blue: #1f8f73;
  --teal: #20b486;
  --mint: #7fe0bd;
  --coral: #ff7b63;
  --orange: #ffad4d;
  --yellow: #ffe078;
  --violet: #5f8d7e;
  --soft: #f2fbf7;
  --ink: #18322b;
  --muted: #5d746c;
  --line: #d8ece4;
}
.site-nav {
  background: rgba(20, 92, 74, .95);
  box-shadow: 0 8px 28px rgba(10, 72, 55, .18)
}
.hero {
  background-image: linear-gradient(105deg, rgba(15, 102, 78, .96) 0%, rgba(24, 132, 99, .90) 48%, rgba(41, 154, 117, .82) 100%), url('../images/hero-science.svg');
  background-size: cover;
  background-position: center;
}
.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, .38) 1.5px, transparent 1.8px), linear-gradient(90deg, transparent 49.6%, rgba(255, 255, 255, .12) 49.8%, rgba(255, 255, 255, .12) 50.2%, transparent 50.4%), linear-gradient(0deg, transparent 49.6%, rgba(255, 255, 255, .10) 49.8%, rgba(255, 255, 255, .10) 50.2%, transparent 50.4%), radial-gradient(circle at 78% 22%, rgba(255, 224, 120, .20), transparent 25%), radial-gradient(circle at 14% 82%, rgba(127, 224, 189, .20), transparent 30%);
  background-size: 34px 34px, 136px 136px, 136px 136px, 100% 100%, 100% 100%;
  background-position: 0 0, 0 0, 0 0, center, center;
  animation: heroNetwork 16s linear infinite;
  pointer-events: none;
}
.hero:after {
  opacity: .18;
  background: linear-gradient(145deg, rgba(255, 224, 120, .45), rgba(127, 224, 189, .18))
}
@keyframes heroNetwork {
  0% {
    background-position: 0 0, 0 0, 0 0, center, center
  }
  100% {
    background-position: 68px 34px, 136px 68px, 68px 136px, center, center
  }
}
.hero h1 {
  font-size: clamp(2.4rem, 4.2vw, 3.9rem)
}
.hero-lead {
  font-size: clamp(1.55rem, 3vw, 2rem);
  line-height: 1.35
}
.hero-speakers {
  min-height: 540px;
  gap: .8rem
}
.hero-speaker {
  height: 460px;
  border-color: rgba(255, 255, 255, .24)
}
.section-title, .venue-card h3, .speaker-card h3 {
  color: var(--navy)
}
.section-soft {
  background: linear-gradient(180deg, var(--soft), #fbfffd)
}
.agenda-time {
  color: var(--navy);
  background: #eef9f4
}
.agenda-row:hover {
  background: #f4fcf8
}
footer {
  background: linear-gradient(110deg, #0f5f49, #19785d)
}
@media(max-width:1199.98px) {
  .hero-speakers {
    min-height: 470px
  }
  .hero-speaker {
    height: 395px
  }
}
@media(max-width:991.98px) {
  .hero-speakers {
    min-height: 0
  }
  .hero-speaker {
    height: 340px
  }
}
@media(max-width:575.98px) {
  .hero-speaker {
    height: 270px
  }
}
@media(prefers-reduced-motion:reduce) {
  .hero:before {
    animation: none
  }
}/* v1.7 hero typography, poster contest, memorial portrait, agenda 0806 */
.hero h1,
.hero-lead {
  font-size: clamp(3.15rem, 2.55vw, 2.35rem);
  line-height: 1.12;
}
.hero-lead {
  max-width: 820px;
  margin-bottom: 1.5rem;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
}
.poster-contest-highlight {
  display: inline-flex;
  align-items: center;
  gap: .8rem 1rem;
  margin: .5rem 0 .4rem;
  padding: .6rem .85rem .6rem .65rem;
  border-left: 5px solid var(--yellow);
  background: rgba(255,255,255,.1);
}
.poster-contest-highlight span {
  padding: .28rem .55rem;
  color: #164f40;
  background: var(--yellow);
  font-size: .78rem;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.poster-contest-highlight strong {
  color: #fff;
  font-size: .96rem;
}
.about-photo-wrap {
  position: relative;
  max-width: 430px;
  margin-inline: auto;
}
.about-photo-wrap:before {
  content: "";
  position: absolute;
  inset: 1.25rem -1.25rem -1.25rem 1.25rem;
  z-index: -1;
  background: linear-gradient(145deg, var(--mint), var(--yellow));
}
.about-photo-wrap:after {
  content: "";
  position: absolute;
  left: -1.5rem;
  bottom: 2rem;
  
  opacity: .75;
}
.about-photo {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 22%;
  box-shadow: 0 26px 55px rgba(20,92,74,.18);
}
.about-glance {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}
.about-glance span {
  display: block;
  margin-bottom: .2rem;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.about-glance strong { color: var(--navy); font-size: 1.08rem; }
.agenda-row { grid-template-columns: 9rem minmax(0, 1fr); }
.agenda-mainline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(10rem, 15rem);
  gap: 1.5rem;
  align-items: start;
}
.agenda-text h3 { margin-bottom: .35rem; }
.agenda-moderator {
  padding-left: 1rem;
  border-left: 2px solid var(--line);
  text-align: right;
}
.agenda-moderator span {
  display: block;
  margin-bottom: .18rem;
  color: var(--muted);
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.agenda-moderator strong {
  color: var(--navy);
  font-size: .9rem;
}
.young-session > * {
  color: #fff;
  background: linear-gradient(105deg, #116b53, #20a179) !important;
}
.young-session .agenda-content h3,
.young-session .agenda-time,
.young-session .agenda-moderator strong { color: #fff; }
.young-session .agenda-moderator { border-left-color: rgba(255,255,255,.35); }
.young-session .agenda-moderator span { color: rgba(255,255,255,.72); }
.young-session .badge-session {
  color: #164f40;
  background: var(--yellow);
}
.young-talk .agenda-time { background: #f0fbf6; }
.young-talk .agenda-content {
  border-left: 5px solid rgba(32,180,134,.32);
  background: linear-gradient(90deg, #f7fffb, #fff 46%);
}
.young-talk .agenda-text h3 { color: #147057; }
.poster-award > * { background: #fff8dd; }
.poster-award .agenda-content h3 { color: #7a5b00; }
.agenda-wrap.compact .agenda-mainline { align-items: center; }
.agenda-wrap.compact .agenda-row:not(.break) .agenda-content p { display: none; }
@media(max-width:767.98px) {
  .hero h1, .hero-lead { font-size: clamp(1.8rem, 8vw, 3.65rem); }
  .poster-contest-highlight { align-items: flex-start; flex-direction: column; }
  .about-photo-wrap { max-width: 330px; }
  .agenda-mainline { grid-template-columns: 1fr; gap: .75rem; }
  .agenda-moderator { padding: .7rem 0 0; border-top: 1px solid var(--line); border-left: 0; text-align: left; }
  .young-session .agenda-moderator { border-top-color: rgba(255,255,255,.35); }
}

/* v1.8 — single feathered Sunney portrait */
.hero-speakers.hero-sunney{display:flex;align-items:flex-end;justify-content:center;min-height:520px;padding:0}
.hero-sunney-portrait{width:min(100%,700px);height:520px;margin:0;overflow:visible;opacity:0;transform:translateY(24px);animation:sunneyHeroIn 1.05s cubic-bezier(.2,.75,.25,1) .18s forwards}
.hero-sunney-portrait img{display:block;width:100%;height:100%;object-fit:contain;object-position:center bottom;filter:drop-shadow(0 24px 32px rgba(0,0,0,.18));-webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 80%,rgba(0,0,0,.8) 88%,transparent 100%);mask-image:linear-gradient(to bottom,#000 0%,#000 80%,rgba(0,0,0,.8) 88%,transparent 100%)}
@keyframes sunneyHeroIn{to{opacity:1;transform:none}}
@media(max-width:991.98px){.hero-speakers.hero-sunney{min-height:420px;margin-top:1.5rem}.hero-sunney-portrait{width:min(100%,560px);height:420px}}
@media(max-width:575.98px){.hero-speakers.hero-sunney{min-height:330px}.hero-sunney-portrait{height:330px}}
@media(prefers-reduced-motion:reduce){.hero-sunney-portrait{opacity:1;transform:none;animation:none}}

/* v1.11 — Poster Session and Sponsors */
.poster-session-section{position:relative;overflow:hidden}
.poster-info-panel{padding:clamp(1.5rem,3vw,2.4rem);background:#fff;border:1px solid rgba(31,111,82,.14);box-shadow:0 20px 55px rgba(17,67,49,.08)}
.poster-details{margin:0}.poster-details>div{display:grid;grid-template-columns:minmax(150px,.7fr) 1.3fr;gap:1rem;padding:1rem 0;border-bottom:1px solid rgba(31,111,82,.12)}
.poster-details dt{color:var(--teal);font-weight:800}.poster-details dd{margin:0}
.poster-participants{margin:1.35rem 0;color:#c62828;font-weight:800}.poster-participants a{color:#c62828;text-decoration-thickness:2px;text-underline-offset:3px}
.poster-note{font-size:.94rem;color:var(--muted)}.poster-register-btn{margin-top:.5rem}
.sponsors-heading{max-width:760px}.sponsor-placeholder{min-height:150px;display:flex;align-items:center;justify-content:center;border:1px dashed rgba(31,111,82,.3);background:rgba(255,255,255,.7);color:var(--muted);font-weight:700}
@media(max-width:767.98px){.poster-details>div{grid-template-columns:1fr;gap:.25rem}}

/* v1.12 Sponsors / Organizer */
.support-column{position:relative}.organizer-column{padding-left:2rem;border-left:1px solid rgba(31,111,82,.18)}.sponsor-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.sponsor-card{min-height:116px;padding:1rem 1.1rem;display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid rgba(31,111,82,.12)}.sponsor-card img{display:block;width:100%;height:76px;object-fit:contain;object-position:center}.sponsor-card-wide{grid-column:1/-1}.sponsor-card-wide img{height:82px;max-width:430px}.sponsor-card-text{min-height:96px;text-align:center;color:var(--text);font-size:.92rem;font-weight:750;line-height:1.4}.organizer-list{display:flex;flex-direction:column;gap:.75rem}.organizer-item{display:flex;align-items:center;gap:1rem;padding:1rem 1.15rem;color:var(--text);text-decoration:none;background:rgba(255,255,255,.72);border:1px solid rgba(31,111,82,.14);transition:transform .25s ease,border-color .25s ease,background-color .25s ease}.organizer-item:hover,.organizer-item:focus-visible{color:var(--text);background:#fff;border-color:rgba(31,111,82,.42);transform:translateX(6px)}.organizer-mark{width:5px;height:42px;flex:0 0 5px;background:var(--teal)}.organizer-item strong{display:block;color:var(--teal);font-weight:800}@media(max-width:991.98px){.organizer-column{padding-left:0;padding-top:2rem;border-left:0;border-top:1px solid rgba(31,111,82,.18)}}@media(max-width:575.98px){.sponsor-grid{grid-template-columns:1fr}.sponsor-card-wide{grid-column:auto}.sponsor-card img,.sponsor-card-wide img{height:72px}}