:root {
  --bg: #050816;
  --bg-2: #081127;
  --panel: rgba(13, 24, 52, 0.66);
  --panel-strong: rgba(12, 24, 50, 0.92);
  --line: rgba(164, 204, 255, 0.18);
  --text: #f6fbff;
  --muted: #a8b7d2;
  --cyan: #52e7ff;
  --blue: #7c8cff;
  --violet: #b678ff;
  --green: #70ffd2;
  --max: 1180px;
  --radius: 24px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 0%, rgba(82, 231, 255, 0.09), transparent 28%),
    radial-gradient(circle at 90% 12%, rgba(182, 120, 255, 0.11), transparent 25%),
    linear-gradient(180deg, #030611 0%, var(--bg) 45%, #060a18 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: rgba(82, 231, 255, 0.25); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.starfield,
.starfield::before,
.starfield::after {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -3;
  content: "";
  background-repeat: repeat;
}
.starfield {
  opacity: .45;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.85) 0 1px, transparent 1.2px),
    radial-gradient(circle, rgba(82,231,255,.55) 0 1px, transparent 1.2px);
  background-size: 140px 140px, 220px 220px;
  background-position: 10px 20px, 80px 100px;
}
.starfield::before {
  opacity: .25;
  background-image: radial-gradient(circle, rgba(255,255,255,.7) 0 .8px, transparent 1px);
  background-size: 90px 90px;
  background-position: 35px 55px;
}
.starfield::after {
  opacity: .2;
  background-image: radial-gradient(circle, rgba(182,120,255,.8) 0 .7px, transparent .9px);
  background-size: 190px 190px;
  background-position: 130px 40px;
}

.aurora {
  position: fixed;
  width: 48vw;
  height: 48vw;
  border-radius: 50%;
  filter: blur(110px);
  opacity: .1;
  z-index: -2;
  pointer-events: none;
}
.aurora-a { background: var(--cyan); left: -20vw; top: 24vh; }
.aurora-b { background: var(--violet); right: -20vw; top: 55vh; }

.site-header {
  width: min(calc(100% - 32px), var(--max));
  margin: 18px auto 0;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 16px;
  position: sticky;
  top: 12px;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(5, 8, 22, 0.72);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 18px 50px rgba(0,0,0,.18);
}

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand strong { display: block; letter-spacing: .12em; font-size: .88rem; }
.brand small { display: block; color: var(--muted); letter-spacing: .2em; font-size: .65rem; }
.brand-mark { position: relative; width: 36px; height: 36px; display: inline-grid; place-items: center; }
.brand-mark .planet { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.brand-mark .orbit { position: absolute; border: 1px solid rgba(82,231,255,.45); border-radius: 50%; transform: rotate(-28deg); }
.brand-mark .orbit-1 { width: 30px; height: 16px; }
.brand-mark .orbit-2 { width: 22px; height: 34px; transform: rotate(56deg); border-color: rgba(182,120,255,.42); }

.site-nav { display: flex; align-items: center; gap: 20px; }
.site-nav a { color: var(--muted); font-size: .88rem; transition: color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; padding: 6px; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2px; display: block; margin: 5px 0; background: var(--text); }

.section-shell { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.section { padding-block: 110px; }

.hero {
  min-height: calc(100vh - 110px);
  display: grid;
  grid-template-columns: 1.07fr .93fr;
  gap: 64px;
  align-items: center;
  padding-block: 90px 72px;
}
.eyebrow { color: var(--cyan); letter-spacing: .22em; text-transform: uppercase; font-size: .75rem; font-weight: 700; }
.hero h1 { margin: 12px 0 18px; font-size: clamp(4rem, 11vw, 9rem); line-height: .82; letter-spacing: -.07em; }
.hero h1 span { display: block; }
.gradient-text { background: linear-gradient(90deg, var(--cyan), #9daaff 48%, var(--violet)); background-clip: text; -webkit-background-clip: text; color: transparent; }
.hero-subtitle { font-size: clamp(1.35rem, 2.5vw, 2rem); max-width: 760px; margin: 0 0 22px; font-weight: 600; letter-spacing: -.02em; }
.hero-intro { color: var(--muted); max-width: 750px; font-size: 1.05rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 0 20px; border-radius: 999px; font-weight: 700; letter-spacing: .01em; border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(90deg, var(--cyan), #82a7ff); color: #03101d; box-shadow: 0 10px 30px rgba(82,231,255,.16); }
.button-secondary { border-color: var(--line); background: rgba(255,255,255,.025); }
.button-secondary:hover { border-color: rgba(82,231,255,.5); }

.hero-meta { margin-top: 42px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.hero-meta > div { padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.025); }
.hero-meta strong, .meta-label { display: block; }
.meta-label { color: var(--muted); text-transform: uppercase; font-size: .66rem; letter-spacing: .13em; margin-bottom: 5px; }
.hero-meta strong { font-size: .85rem; }

.hero-visual { min-height: 540px; display: grid; place-items: center; }
.cosmos-card {
  width: min(100%, 520px);
  aspect-ratio: 1 / 1;
  position: relative;
  border: 1px solid rgba(124, 140, 255, .24);
  border-radius: 34px;
  overflow: hidden;
  background:
    linear-gradient(rgba(82,231,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(82,231,255,.04) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(82,231,255,.12), rgba(5,8,22,.4) 40%, rgba(5,8,22,.95) 74%);
  background-size: 38px 38px, 38px 38px, auto;
  box-shadow: var(--shadow), inset 0 0 70px rgba(82,231,255,.05);
}
.cosmos-card::before { content: ""; position: absolute; inset: 10%; border-radius: 50%; border: 1px dashed rgba(255,255,255,.12); }
.sun { position: absolute; left: 50%; top: 50%; width: 42px; height: 42px; margin: -21px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #fff, var(--cyan) 30%, #2a4eff 72%); box-shadow: 0 0 45px rgba(82,231,255,.8), 0 0 110px rgba(82,231,255,.3); }
.system-orbit { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(164,204,255,.2); border-radius: 50%; transform: translate(-50%,-50%) rotate(-18deg); }
.orbit-a { width: 38%; height: 23%; animation: rotate 16s linear infinite; }
.orbit-b { width: 61%; height: 42%; animation: rotate 24s linear infinite reverse; }
.orbit-c { width: 82%; height: 67%; animation: rotate 35s linear infinite; }
.orbiter { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--text); box-shadow: 0 0 18px currentColor; top: 50%; right: -5px; }
.orbiter-b { width: 7px; height: 7px; background: var(--violet); }
.orbiter-c { width: 12px; height: 12px; background: var(--green); }
.scanline { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 0 47%, rgba(82,231,255,.16) 49%, transparent 51%); animation: scan 5s ease-in-out infinite; mix-blend-mode: screen; }
.cosmos-data { position: absolute; font-size: .64rem; letter-spacing: .16em; color: rgba(220,240,255,.7); }
.data-a { top: 9%; left: 8%; }
.data-b { top: 11%; right: 8%; }
.data-c { bottom: 9%; left: 8%; }
.data-d { bottom: 9%; right: 8%; }

.manifesto-band { border-block: 1px solid var(--line); background: rgba(255,255,255,.015); overflow: hidden; }
.manifesto-band p { margin: 0; padding: 22px; text-align: center; font-size: clamp(1rem, 2.6vw, 1.55rem); letter-spacing: .03em; font-weight: 650; }
.manifesto-band span { color: var(--cyan); }

.section-heading { max-width: 760px; margin-bottom: 46px; }
.section-heading h2, .statement-panel h2, .cta h2 { margin: 8px 0 16px; font-size: clamp(2.5rem, 5.5vw, 5rem); line-height: 1; letter-spacing: -.045em; }
.section-heading p:not(.eyebrow), .statement-panel p, .cta p { color: var(--muted); }

.lecture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.lecture-card {
  min-height: 390px;
  display: flex;
  flex-direction: column;
  position: relative;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.015));
  overflow: hidden;
}
.lecture-card::after { content: ""; position: absolute; width: 160px; height: 160px; border-radius: 50%; right: -80px; bottom: -80px; background: radial-gradient(circle, rgba(82,231,255,.2), transparent 64%); }
.lecture-card:nth-child(3)::after, .lecture-card:nth-child(4)::after { background: radial-gradient(circle, rgba(182,120,255,.2), transparent 64%); }
.lecture-no { color: rgba(255,255,255,.18); font-size: 4rem; line-height: 1; font-weight: 800; }
.date-chip { width: fit-content; border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; color: var(--cyan); font-size: .72rem; font-weight: 800; letter-spacing: .14em; }
.lecture-card h3 { margin: 18px 0 8px; font-size: 1.45rem; }
.lecture-card > p:not(.date-chip):not(.question) { color: var(--muted); }
.question { font-size: 1.12rem; font-weight: 700; margin-bottom: 0; }
.card-footer { margin-top: auto; border-top: 1px solid var(--line); padding-top: 18px; display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.card-footer span { color: var(--muted); font-size: .74rem; text-transform: uppercase; letter-spacing: .1em; }
.card-footer strong { font-size: .88rem; text-align: right; }
.closing-question { margin-top: 24px; padding: 30px; border-radius: var(--radius); border: 1px solid rgba(82,231,255,.24); background: linear-gradient(90deg, rgba(82,231,255,.06), rgba(182,120,255,.05)); }
.closing-question span { color: var(--cyan); text-transform: uppercase; letter-spacing: .15em; font-size: .72rem; font-weight: 700; }
.closing-question blockquote { margin: 12px 0 0; font-size: clamp(1.25rem, 2.6vw, 2rem); line-height: 1.25; font-weight: 650; }

.science-day { border-block: 1px solid var(--line); background: rgba(255,255,255,.012); }
.timeline { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgba(5,8,22,.62); }
.timeline-item { display: grid; grid-template-columns: 160px 1fr; min-height: 84px; border-bottom: 1px solid var(--line); }
.timeline-item:last-child { border-bottom: 0; }
.timeline-item time { color: var(--cyan); font-variant-numeric: tabular-nums; font-weight: 800; padding: 25px 28px; border-right: 1px solid var(--line); }
.timeline-item div { padding: 22px 30px; display: flex; flex-direction: column; justify-content: center; }
.timeline-item strong { font-size: 1.04rem; }
.timeline-item span { color: var(--muted); margin-top: 4px; }
.timeline-item.highlight { background: linear-gradient(90deg, rgba(82,231,255,.07), rgba(124,140,255,.035)); }
.timeline-item.break { background: rgba(255,255,255,.02); }
.timeline-item.reception { background: linear-gradient(90deg, rgba(112,255,210,.06), rgba(82,231,255,.03)); }

.pillar-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.pillar { min-height: 300px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); position: relative; overflow: hidden; }
.pillar::after { content: ""; position: absolute; inset: auto -20% -55% auto; width: 260px; height: 260px; border-radius: 50%; border: 1px solid rgba(82,231,255,.18); box-shadow: 0 0 80px rgba(82,231,255,.05) inset; }
.pillar:nth-child(even)::after { border-color: rgba(182,120,255,.2); }
.pillar-icon { position: absolute; top: 28px; right: 30px; font-size: 2rem; color: var(--cyan); }
.pillar-kicker { color: var(--cyan); letter-spacing: .2em; font-weight: 800; }
.pillar h3 { font-size: 2rem; margin: 8px 0; }
.pillar p:last-child { color: var(--muted); max-width: 85%; }

.alignment { border-block: 1px solid var(--line); background: linear-gradient(180deg, rgba(124,140,255,.025), rgba(5,8,22,.01)); }
.alignment-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.alignment-grid .section-heading { position: sticky; top: 120px; }
.alignment-stack { display: grid; gap: 16px; }
.alignment-card { padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--panel); }
.alignment-card .tag { display: inline-block; color: var(--cyan); border: 1px solid rgba(82,231,255,.25); border-radius: 999px; padding: 5px 9px; font-size: .66rem; letter-spacing: .15em; font-weight: 800; }
.alignment-card h3 { margin: 16px 0 8px; font-size: 1.45rem; }
.alignment-card p { color: var(--muted); margin-bottom: 0; }

.statement-panel { padding: clamp(30px, 5vw, 64px); border-radius: 34px; border: 1px solid rgba(124,140,255,.28); background: radial-gradient(circle at 12% 10%, rgba(82,231,255,.08), transparent 30%), radial-gradient(circle at 85% 78%, rgba(182,120,255,.1), transparent 32%), var(--panel-strong); box-shadow: var(--shadow); }
.ambition-grid { margin-top: 42px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.ambition-grid > div { display: grid; grid-template-columns: 48px 1fr; gap: 14px; align-items: start; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.02); }
.ambition-grid span { color: var(--cyan); font-weight: 800; }
.ambition-grid p { margin: 0; color: var(--text); }

.architecture { background: rgba(255,255,255,.012); border-block: 1px solid var(--line); }
.architecture-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 12px; align-items: stretch; }
.architecture-flow > div:not(.flow-arrow) { border: 1px solid var(--line); border-radius: 20px; padding: 22px; background: rgba(255,255,255,.02); }
.architecture-flow span { color: var(--cyan); font-size: .72rem; letter-spacing: .16em; font-weight: 800; }
.architecture-flow strong { display: block; margin-top: 10px; }
.architecture-flow p { color: var(--muted); font-size: .9rem; }
.flow-arrow { display: grid; place-items: center; color: var(--cyan); font-size: 1.4rem; }



/* Scientific Organising Committee */
.soc {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 18%, rgba(82,231,255,.07), transparent 25%),
    radial-gradient(circle at 92% 82%, rgba(182,120,255,.08), transparent 28%);
}
.soc::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 84%, transparent);
}
.soc .section-shell { position: relative; z-index: 1; }
.soc-heading { margin-bottom: 34px; }
.soc-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.soc-card {
  min-height: 160px;
  padding: 26px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.018));
  box-shadow: 0 18px 55px rgba(0,0,0,.14);
  transition: transform .22s ease, border-color .22s ease, background .22s ease;
}
.soc-card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  right: -55px;
  bottom: -55px;
  border-radius: 50%;
  border: 1px solid rgba(82,231,255,.16);
  box-shadow: 0 0 50px rgba(82,231,255,.04) inset;
}
.soc-card:hover { transform: translateY(-4px); border-color: rgba(82,231,255,.34); background: linear-gradient(180deg, rgba(82,231,255,.06), rgba(255,255,255,.018)); }
.soc-card h3 { margin: 0 0 8px; font-size: 1.28rem; letter-spacing: -.02em; }
.soc-card p { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.55; max-width: 92%; }
.soc-tag { display: inline-flex; margin-top: 14px; padding: 6px 9px; border: 1px solid rgba(82,231,255,.24); border-radius: 999px; color: var(--cyan); background: rgba(82,231,255,.045); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 800; }

.institutions {
  border-block: 1px solid var(--line);
  background:
    radial-gradient(circle at 18% 50%, rgba(82,231,255,.07), transparent 28%),
    radial-gradient(circle at 82% 50%, rgba(182,120,255,.07), transparent 28%),
    rgba(255,255,255,.012);
}
.institutions-heading { margin-bottom: 34px; }
.institution-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.institution-card {
  min-height: 260px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.018));
  box-shadow: 0 18px 55px rgba(0,0,0,.18);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.institution-card:hover, .institution-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(82,231,255,.44);
  box-shadow: 0 24px 70px rgba(0,0,0,.26), 0 0 0 1px rgba(82,231,255,.08) inset;
}
.institution-logo-wrap {
  min-height: 176px;
  display: grid;
  place-items: center;
  padding: 24px 28px;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
}
.institution-logo { display: block; width: 100%; height: 126px; object-fit: contain; }
.aob-logo { max-width: 350px; }
.ipb-logo { max-width: 460px; }
.institution-name { display: block; margin-top: 15px; color: var(--text); font-weight: 750; letter-spacing: -.01em; }
.institution-link { display: block; margin-top: 3px; color: var(--cyan); font-size: .78rem; letter-spacing: .05em; }

.cta { text-align: center; max-width: 860px; }
.cta p:not(.eyebrow) { max-width: 700px; margin: 0 auto 30px; }
.site-footer { width: min(calc(100% - 40px), var(--max)); margin: 0 auto 30px; padding: 28px 0; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 30px; color: var(--muted); font-size: .86rem; }
.site-footer strong, .site-footer span { display: block; }
.site-footer strong { color: var(--text); letter-spacing: .12em; }
.site-footer > div:last-child { text-align: right; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes rotate { to { transform: translate(-50%,-50%) rotate(342deg); } }
@keyframes scan { 0%,100% { transform: translateY(-42%); opacity: .3; } 50% { transform: translateY(42%); opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 980px) {
  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    background: rgba(5,8,22,.96);
    border-radius: 18px;
    backdrop-filter: blur(20px);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px; }
  .nav-toggle { display: block; }
  .hero { grid-template-columns: 1fr; padding-top: 70px; }
  .hero-visual { min-height: 430px; }
  .hero-meta { grid-template-columns: 1fr 1fr; }
  .lecture-grid { grid-template-columns: repeat(2, 1fr); }
  .alignment-grid { grid-template-columns: 1fr; gap: 10px; }
  .alignment-grid .section-heading { position: static; }
  .architecture-flow { grid-template-columns: 1fr; }
  .institution-grid { grid-template-columns: 1fr; }
  .soc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-arrow { transform: rotate(90deg); min-height: 24px; }
}

@media (max-width: 680px) {
  .site-header { width: min(calc(100% - 20px), var(--max)); top: 8px; }
  .section-shell { width: min(calc(100% - 26px), var(--max)); }
  .section { padding-block: 78px; }
  .hero { padding-top: 58px; gap: 34px; }
  .hero h1 { font-size: clamp(3.7rem, 23vw, 6.2rem); }
  .hero-meta { grid-template-columns: 1fr; }
  .hero-visual { min-height: auto; }
  .lecture-grid, .pillar-grid, .ambition-grid { grid-template-columns: 1fr; }
  .soc-grid { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; }
  .timeline-item time { border-right: 0; border-bottom: 1px solid var(--line); padding: 14px 18px; }
  .timeline-item div { padding: 18px; }
  .pillar p:last-child { max-width: 100%; }
  .site-footer { width: min(calc(100% - 26px), var(--max)); flex-direction: column; }
  .site-footer > div:last-child { text-align: left; }
  .institution-logo-wrap { min-height: 150px; padding: 20px; }
  .institution-logo { height: 104px; }
  .cosmos-data { font-size: .5rem; }
}


/* Carl Sagan legacy */
.legacy {
  border-block: 1px solid var(--line);
  background:
    radial-gradient(circle at 10% 20%, rgba(82,231,255,.07), transparent 30%),
    radial-gradient(circle at 88% 75%, rgba(182,120,255,.08), transparent 30%),
    rgba(255,255,255,.01);
}
.legacy-intro { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: stretch; }
.sagan-portrait-card, .legacy-copy-card, .pbd-card, .resource-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}
.sagan-portrait-card { position: relative; min-height: 560px; box-shadow: var(--shadow); }
.sagan-portrait-card img { width: 100%; height: 100%; object-fit: cover; object-position: 56% 38%; display: block; filter: contrast(1.04); }
.sagan-portrait-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(3,6,17,.94) 100%); }
.portrait-caption { position: absolute; z-index: 2; left: 24px; right: 24px; bottom: 22px; }
.portrait-caption strong { display: block; font-size: 1.15rem; }
.portrait-caption span { display: block; margin-top: 4px; color: #b8c6da; font-size: .78rem; }
.legacy-copy-card { padding: clamp(28px, 4vw, 52px); display: flex; flex-direction: column; justify-content: center; }
.legacy-copy-card h2 { margin: 8px 0 18px; font-size: clamp(2.6rem, 5vw, 4.8rem); line-height: .98; letter-spacing: -.045em; }
.legacy-copy-card p { color: var(--muted); }
.legacy-copy-card .legacy-lead { color: var(--text); font-size: 1.22rem; font-weight: 650; }
.legacy-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.legacy-links a, .card-link { display: inline-flex; align-items: center; gap: 7px; color: var(--cyan); font-weight: 750; font-size: .82rem; }
.legacy-links a { padding: 10px 13px; border: 1px solid rgba(82,231,255,.2); border-radius: 999px; background: rgba(82,231,255,.035); }
.legacy-links a:hover { border-color: rgba(82,231,255,.55); }
.pbd-card { margin-top: 20px; min-height: 430px; position: relative; display: grid; align-items: end; background: #090d18; }
.pbd-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .92; }
.pbd-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,6,17,.88) 0%, rgba(3,6,17,.42) 48%, rgba(3,6,17,.2) 100%), linear-gradient(180deg, transparent 45%, rgba(3,6,17,.72)); }
.pbd-content { position: relative; z-index: 2; max-width: 650px; padding: clamp(28px, 5vw, 58px); }
.pbd-content .eyebrow { margin: 0; }
.pbd-content h3 { margin: 8px 0 10px; font-size: clamp(2.5rem, 5vw, 4.6rem); line-height: .98; letter-spacing: -.045em; }
.pbd-content p { color: #c6d3e5; font-size: 1.04rem; }
.pbd-credit { display: block; color: #98abc4; font-size: .74rem; margin-top: 14px; }
.legacy-library { margin-top: 58px; }
.legacy-library-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 22px; }
.legacy-library-head h3 { margin: 5px 0 0; font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -.035em; }
.legacy-library-head p { color: var(--muted); max-width: 570px; margin: 0; }
.resource-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.resource-card { min-height: 430px; position: relative; display: flex; flex-direction: column; transition: transform .2s ease, border-color .2s ease; }
.resource-card:hover { transform: translateY(-4px); border-color: rgba(82,231,255,.38); }
.book-art { height: 250px; padding: 18px; display: grid; place-items: center; overflow: hidden; background: rgba(255,255,255,.025); }
.book-art img { height: 218px; max-width: 100%; object-fit: contain; box-shadow: 0 20px 45px rgba(0,0,0,.38); }
.resource-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.resource-body .resource-type { color: var(--cyan); letter-spacing: .15em; text-transform: uppercase; font-size: .66rem; font-weight: 800; }
.resource-body h4 { margin: 8px 0 8px; font-size: 1.28rem; line-height: 1.15; }
.resource-body p { color: var(--muted); font-size: .9rem; margin: 0 0 16px; }
.resource-body .card-link { margin-top: auto; }
.series-art { height: 250px; position: relative; overflow: hidden; display: grid; place-items: center; background:
  radial-gradient(circle at 28% 35%, rgba(82,231,255,.34), transparent 18%),
  radial-gradient(circle at 66% 55%, rgba(182,120,255,.3), transparent 24%),
  linear-gradient(135deg, #08142a, #050816 58%, #170c2b);
}
.series-art::before, .series-art::after { content: ""; position: absolute; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; }
.series-art::before { width: 230px; height: 90px; transform: rotate(-17deg); }
.series-art::after { width: 92px; height: 230px; transform: rotate(58deg); }
.series-title { position: relative; z-index: 2; text-align: center; padding: 20px; }
.series-title span { display: block; color: var(--cyan); letter-spacing: .2em; font-size: .68rem; font-weight: 800; }
.series-title strong { display: block; margin-top: 7px; font-size: 2rem; line-height: .95; letter-spacing: -.04em; }
.series-title small { display: block; color: var(--muted); margin-top: 10px; }
.rights-note { margin-top: 18px; color: var(--muted); font-size: .78rem; }
.rights-note a { color: var(--cyan); }

@media (max-width: 980px) {
  .legacy-intro { grid-template-columns: 1fr; }
  .sagan-portrait-card { min-height: 520px; }
  .resource-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 680px) {
  .sagan-portrait-card { min-height: 430px; }
  .pbd-card { min-height: 480px; }
  .resource-grid { grid-template-columns: 1fr; }
  .legacy-library-head { display: block; }
  .legacy-library-head p { margin-top: 10px; }
}


/* Venue */
.venue {
  border-block: 1px solid var(--line);
  background:
    radial-gradient(circle at 18% 22%, rgba(82,231,255,.08), transparent 30%),
    radial-gradient(circle at 82% 78%, rgba(182,120,255,.08), transparent 32%),
    rgba(255,255,255,.012);
}
.venue-grid { display: grid; grid-template-columns: .88fr 1.12fr; gap: 30px; align-items: stretch; }
.venue-copy, .venue-map-card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); overflow: hidden; box-shadow: var(--shadow); }
.venue-copy { padding: clamp(30px, 4vw, 54px); display: flex; flex-direction: column; justify-content: center; }
.venue-copy h2 { margin: 8px 0 18px; font-size: clamp(2.8rem, 5.5vw, 5.2rem); line-height: .95; letter-spacing: -.05em; }
.venue-lead { color: var(--muted); font-size: 1.08rem; margin: 0 0 28px; max-width: 630px; }
.venue-lead strong { color: var(--text); }
.venue-address { padding: 20px; border: 1px solid rgba(82,231,255,.18); border-radius: 18px; background: rgba(82,231,255,.035); }
.venue-address strong { display: block; font-size: 1.35rem; letter-spacing: -.02em; }
.venue-address p { color: var(--muted); margin: 2px 0 8px; }
.venue-address small { color: #8fa6c5; font-size: .72rem; letter-spacing: .08em; }
.venue-dates { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.venue-dates > div { padding: 14px 16px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.02); }
.venue-dates span { display: block; color: var(--cyan); font-size: .61rem; letter-spacing: .14em; font-weight: 800; }
.venue-dates strong { display: block; margin-top: 4px; font-size: .78rem; }
.venue-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 24px; }
.venue-map-card { min-height: 520px; position: relative; background: #07101e; }
.venue-map-card iframe { width: 100%; height: 100%; min-height: 520px; border: 0; filter: saturate(.75) contrast(1.03) brightness(.82); display: block; }
.venue-map-card::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 90px rgba(5,8,22,.44); }
.venue-map-caption { position: absolute; z-index: 2; left: 18px; right: 18px; bottom: 18px; display: flex; gap: 12px; align-items: center; padding: 14px 16px; border: 1px solid rgba(164,204,255,.22); border-radius: 16px; background: rgba(5,8,22,.88); backdrop-filter: blur(16px); box-shadow: 0 18px 50px rgba(0,0,0,.3); }
.venue-map-caption strong { display: block; font-size: .78rem; letter-spacing: .12em; }
.venue-map-caption span:not(.venue-pin) { display: block; color: var(--muted); font-size: .75rem; margin-top: 2px; }
.venue-pin { flex: 0 0 auto; width: 14px; height: 14px; border-radius: 50% 50% 50% 0; transform: rotate(-45deg); background: var(--cyan); box-shadow: 0 0 22px rgba(82,231,255,.8); }
.venue-pin::after { content: ""; position: absolute; width: 5px; height: 5px; border-radius: 50%; background: #07101e; left: 4.5px; top: 4.5px; }

@media (max-width: 980px) {
  .venue-grid { grid-template-columns: 1fr; }
  .venue-map-card, .venue-map-card iframe { min-height: 440px; }
}
@media (max-width: 680px) {
  .venue-dates { grid-template-columns: 1fr; }
  .venue-map-card, .venue-map-card iframe { min-height: 390px; }
  .venue-actions .button { width: 100%; }
}

/* Scientific Day registration */
.science-day-actions{margin-top:1.4rem;display:flex;gap:.75rem;flex-wrap:wrap}
.registration-section{position:relative;overflow:hidden;background:linear-gradient(180deg,rgba(7,13,30,.28),rgba(9,18,39,.72))}
.registration-section::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 15% 10%,rgba(80,175,255,.11),transparent 28%),radial-gradient(circle at 88% 78%,rgba(178,100,255,.10),transparent 30%)}
.registration-layout{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:1.25rem;margin-top:2rem}
.registration-card,.flash-card{border:1px solid rgba(151,196,255,.19);background:linear-gradient(145deg,rgba(13,25,49,.82),rgba(8,15,31,.74));box-shadow:0 24px 70px rgba(0,0,0,.2);border-radius:24px;padding:1.65rem;backdrop-filter:blur(14px)}
.registration-status,.flash-mark{display:inline-flex;align-items:center;min-height:28px;padding:.25rem .62rem;border:1px solid rgba(113,205,255,.32);border-radius:999px;font-size:.72rem;letter-spacing:.15em;font-weight:800;color:#8fdcff;background:rgba(45,160,228,.08)}
.registration-card h3,.flash-card h3{margin:.9rem 0 .4rem;font-size:clamp(1.25rem,2vw,1.7rem)}
.registration-intro,.flash-card>p{color:var(--muted);margin:0 0 1.1rem}
.registration-fields{display:grid;gap:.65rem;margin-top:1.1rem}
.registration-field{display:grid;grid-template-columns:42px 1fr;gap:.75rem;align-items:center;padding:.8rem .85rem;border:1px solid rgba(151,196,255,.11);border-radius:14px;background:rgba(255,255,255,.025)}
.registration-field>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:rgba(79,180,255,.09);color:#9ee7ff;font-size:.72rem;font-weight:800;letter-spacing:.08em}
.registration-field strong{display:block;font-size:.96rem}
.registration-field small{display:block;color:var(--muted);margin-top:.12rem;line-height:1.35}
.flash-card{position:relative}
.flash-card::after{content:"";position:absolute;right:-45px;top:-45px;width:130px;height:130px;border-radius:50%;border:1px solid rgba(145,123,255,.16);box-shadow:0 0 0 18px rgba(145,123,255,.025),0 0 0 36px rgba(145,123,255,.018)}
.flash-items{display:grid;gap:.72rem;margin:1.1rem 0}
.flash-items>div{padding:.8rem .9rem;border-left:2px solid rgba(135,205,255,.42);background:rgba(255,255,255,.025);border-radius:0 12px 12px 0}
.flash-items strong{display:block;font-size:.93rem}
.flash-items span{display:block;margin-top:.16rem;color:var(--muted);font-size:.83rem}
.flash-note{margin-top:1rem!important;padding-top:1rem;border-top:1px solid rgba(151,196,255,.12);font-size:.86rem;line-height:1.55}
.registration-consent{position:relative;margin-top:1.25rem;display:flex;justify-content:space-between;gap:1.4rem;align-items:center;padding:1rem 1.2rem;border:1px solid rgba(151,196,255,.14);border-radius:16px;background:rgba(7,16,34,.63)}
.registration-consent strong{font-size:.86rem;letter-spacing:.08em;text-transform:uppercase}
.registration-consent p{margin:.18rem 0 0;color:var(--muted);font-size:.85rem}
.registration-pending{flex:0 0 auto;border:1px solid rgba(113,205,255,.28);border-radius:999px;padding:.55rem .75rem;font-size:.72rem;font-weight:800;letter-spacing:.11em;color:#9ee7ff;background:rgba(45,160,228,.07);white-space:nowrap}
@media (max-width:860px){.registration-layout{grid-template-columns:1fr}.registration-consent{align-items:flex-start;flex-direction:column}.registration-pending{white-space:normal}}


/* Live Google Form registration */
.registration-live{position:relative;margin-top:2rem;border:1px solid rgba(151,196,255,.19);background:linear-gradient(145deg,rgba(13,25,49,.86),rgba(8,15,31,.78));box-shadow:0 24px 70px rgba(0,0,0,.22);border-radius:24px;padding:1.1rem;backdrop-filter:blur(14px)}
.registration-live-bar{display:flex;justify-content:space-between;align-items:center;gap:1.25rem;padding:.6rem .55rem 1.15rem}
.registration-live-bar h3{margin:.72rem 0 .25rem;font-size:clamp(1.25rem,2vw,1.7rem)}
.registration-live-bar p{margin:0;color:var(--muted);max-width:760px}
.registration-open{display:inline-flex;align-items:center;min-height:28px;padding:.25rem .62rem;border:1px solid rgba(113,205,255,.34);border-radius:999px;font-size:.72rem;letter-spacing:.15em;font-weight:800;color:#9ee7ff;background:rgba(45,160,228,.09)}
.google-form-frame{overflow:hidden;border-radius:18px;background:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.google-form-frame iframe{display:block;width:100%;min-height:1900px;border:0;background:#fff}
.registration-live-link{flex:0 0 auto;display:inline-flex;align-items:center;border:1px solid rgba(113,205,255,.34);border-radius:999px;padding:.65rem .82rem;font-size:.74rem;font-weight:800;letter-spacing:.10em;color:#9ee7ff;background:rgba(45,160,228,.08);text-decoration:none;white-space:nowrap;transition:transform .2s ease,border-color .2s ease,background .2s ease}
.registration-live-link:hover{transform:translateY(-1px);border-color:rgba(113,205,255,.58);background:rgba(45,160,228,.13)}
@media (max-width:860px){.registration-live-bar{align-items:flex-start;flex-direction:column}.registration-live-bar .button{width:100%;text-align:center}.google-form-frame iframe{min-height:2050px}.registration-live-link{white-space:normal;width:100%;justify-content:center}}


/* 2026-09-23: expanded initiative introduction */
.hero-intro-expanded{display:grid;gap:.55rem;max-width:800px}
.hero-intro-expanded p{margin:0;color:var(--muted);font-size:1.02rem;line-height:1.7}
.hero-intro-expanded strong{color:var(--text);font-weight:700}
.hero-context-link{width:max-content;margin-top:.25rem;color:#9ee7ff;text-decoration:none;font-size:.82rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid rgba(158,231,255,.38);padding-bottom:.18rem;transition:color .2s ease,border-color .2s ease}
.hero-context-link:hover{color:#fff;border-color:#fff}

/* Updated public programme */
.lecture-track{margin:12px 0 -10px!important;color:#9ee7ff!important;font-size:.7rem!important;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.lecture-card:nth-child(2) .lecture-track{color:#71f0c4!important}
.lecture-card:nth-child(3) .lecture-track{color:#ffbf63!important}
.lecture-card:nth-child(4) .lecture-track{color:#9edfff!important}
.vs-word{font-size:.78em;font-weight:500;font-style:italic;opacity:.8}

/* Public lecture poster gallery */
.poster-showcase{margin-top:44px;padding:24px;border:1px solid rgba(151,196,255,.16);border-radius:26px;background:linear-gradient(145deg,rgba(13,25,49,.68),rgba(8,15,31,.55));box-shadow:0 24px 70px rgba(0,0,0,.18)}
.poster-showcase-head{display:flex;justify-content:space-between;align-items:end;gap:1.5rem;margin-bottom:22px}
.poster-showcase-head h3{margin:.35rem 0 0;font-size:clamp(1.45rem,2.6vw,2.1rem);letter-spacing:-.03em}
.poster-download{flex:0 0 auto;color:#9ee7ff;text-decoration:none;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border:1px solid rgba(113,205,255,.30);border-radius:999px;padding:.68rem .9rem;background:rgba(45,160,228,.07);transition:transform .2s ease,border-color .2s ease,background .2s ease}
.poster-download:hover{transform:translateY(-2px);border-color:rgba(113,205,255,.58);background:rgba(45,160,228,.13)}
.poster-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.poster-card{display:block;overflow:hidden;border-radius:18px;border:1px solid rgba(151,196,255,.14);background:rgba(255,255,255,.025);text-decoration:none;color:var(--text);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.poster-card:hover{transform:translateY(-5px);border-color:rgba(113,205,255,.42);box-shadow:0 20px 48px rgba(0,0,0,.32)}
.poster-card img{display:block;width:100%;height:auto;aspect-ratio:1/1.414;object-fit:cover;background:#030817}
.poster-card>span{display:grid;gap:.22rem;padding:13px 14px 15px}
.poster-card strong{font-size:.8rem;letter-spacing:.08em}
.poster-card small{color:var(--muted);font-size:.74rem;line-height:1.4}

/* SOC secretariat */
.secretariat{margin-top:28px;padding-top:26px;border-top:1px solid rgba(151,196,255,.14)}
.secretariat-head{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:16px}
.secretariat-head h3{margin:.25rem 0 0;font-size:clamp(1.45rem,2.6vw,2.15rem);letter-spacing:-.03em}
.secretariat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.secretary-card{display:flex;align-items:center;gap:16px;padding:20px;border:1px solid rgba(151,196,255,.15);border-radius:18px;background:linear-gradient(145deg,rgba(13,25,49,.58),rgba(8,15,31,.5))}
.secretary-mark{display:grid;place-items:center;flex:0 0 42px;width:42px;height:42px;border-radius:50%;border:1px solid rgba(113,205,255,.30);color:#9ee7ff;font-size:.72rem;font-weight:800;letter-spacing:.08em;background:rgba(45,160,228,.07)}
.secretary-card h4{margin:0 0 .25rem;font-size:1.12rem}
.secretary-card p{margin:0;color:var(--muted);font-size:.88rem}

@media (max-width:980px){.poster-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:680px){.poster-showcase{padding:16px}.poster-showcase-head{align-items:flex-start;flex-direction:column}.poster-download{width:100%;text-align:center}.poster-grid{grid-template-columns:1fr 1fr;gap:10px}.poster-card>span{padding:10px}.secretariat-grid{grid-template-columns:1fr}.secretariat-head{align-items:flex-start;flex-direction:column}}
@media (max-width:480px){.poster-grid{grid-template-columns:1fr}}


/* Public lecture announcements and posters — strict aligned rows */
.public-lecture-pairing-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin:8px 0 22px;padding:18px 0;border-top:1px solid rgba(151,196,255,.12)}
.public-lecture-pairing-head>div{max-width:760px}
.public-lecture-pairing-head .eyebrow{margin-bottom:7px}
.public-lecture-pairing-head p:not(.eyebrow){margin:0;color:var(--muted);font-size:.92rem}
.public-lecture-rows{display:grid;gap:16px}
.lecture-announcement-row,.lecture-poster-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:stretch}
.lecture-announcement-row .lecture-card{height:100%;min-height:410px}
.lecture-poster-row .poster-card{height:100%;display:flex;flex-direction:column}
.lecture-poster-row .poster-card img{width:100%;aspect-ratio:1/1.414;object-fit:cover;flex:0 0 auto}
.lecture-poster-row .poster-card>span{min-height:74px;flex:1;align-content:center}
.lecture-poster-row .poster-card strong{line-height:1.28}
@media (max-width:980px){
  .lecture-announcement-row,.lecture-poster-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .public-lecture-pairing-head{align-items:flex-start;flex-direction:column}
  .lecture-announcement-row .lecture-card{min-height:360px}
}
@media (max-width:680px){
  .lecture-announcement-row,.lecture-poster-row{grid-template-columns:1fr}
  .lecture-announcement-row .lecture-card{min-height:auto}
  .public-lecture-pairing-head{margin-bottom:18px}
  .poster-download{width:100%;text-align:center}
}

/* 2026-10-19: Scientific Day registration deadlines */
.registration-dates{position:relative;margin-top:1.25rem;padding:1.35rem;border:1px solid rgba(151,196,255,.16);border-radius:20px;background:linear-gradient(145deg,rgba(10,20,42,.78),rgba(7,14,29,.7));box-shadow:0 20px 55px rgba(0,0,0,.18)}
.registration-dates-head{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1rem}
.registration-dates-head .eyebrow{margin:0}
.registration-dates-head h3{margin:0;font-size:clamp(1.2rem,2vw,1.55rem);letter-spacing:-.02em}
.registration-date-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.8rem}
.registration-date-card{display:grid;gap:.5rem;min-height:116px;padding:1rem;border:1px solid rgba(151,196,255,.12);border-radius:15px;background:rgba(255,255,255,.025)}
.registration-date-card time{color:#9ee7ff;font-size:.76rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase;line-height:1.4}
.registration-date-card strong{font-size:.95rem;line-height:1.4}
.registration-date-card.deadline{border-color:rgba(255,191,99,.24);background:linear-gradient(145deg,rgba(255,191,99,.055),rgba(255,255,255,.02))}
.registration-date-card.deadline time{color:#ffd18c}
.registration-date-card.event-day{border-color:rgba(113,240,196,.24);background:linear-gradient(145deg,rgba(113,240,196,.055),rgba(255,255,255,.02))}
.registration-date-card.event-day time{color:#8bf2ce}
.flash-selection-note{margin:1rem 0 0;padding:1rem 1.05rem;border-left:2px solid rgba(158,231,255,.45);border-radius:0 12px 12px 0;background:rgba(82,231,255,.035);color:var(--muted);font-size:.9rem;line-height:1.6}
.flash-selection-note strong{color:var(--text)}
@media (max-width:980px){.registration-date-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.registration-dates-head{align-items:flex-start;flex-direction:column}}
@media (max-width:600px){.registration-date-grid{grid-template-columns:1fr}.registration-date-card{min-height:auto}}