:root {
  --navy-950: #04111f;
  --navy-900: #071a2e;
  --navy-850: #0a2138;
  --navy-800: #0f2c47;
  --cyan-300: #7df4ef;
  --cyan-400: #26dce5;
  --cyan-500: #1fbecf;
  --amber-300: #ffd777;
  --ice: #edffff;
  --text: #d9e7ef;
  --muted: #8fa9b9;
  --line: rgba(125, 244, 239, 0.16);
  --surface: rgba(12, 38, 61, 0.72);
  --surface-strong: #0d2942;
  --max-width: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 8%, rgba(31, 190, 207, 0.13), transparent 28rem),
    radial-gradient(circle at 15% 25%, rgba(52, 120, 223, 0.1), transparent 30rem),
    var(--navy-950);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(125, 244, 239, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 244, 239, 0.025) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ice);
  color: var(--navy-950);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(125, 244, 239, 0.11);
  background: rgba(4, 17, 31, 0.78);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 40px), 1260px);
  min-height: 76px;
  margin-inline: auto;
  gap: 32px;
}

.brand { flex: 0 0 216px; }
.brand img {
  width: 216px;
  filter: drop-shadow(0 4px 14px rgba(38, 220, 229, 0.12));
}

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.86rem;
  font-weight: 650;
  letter-spacing: 0.015em;
  white-space: nowrap;
}

.nav-tabs a {
  padding: 9px 13px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #b7ccd8;
  transition: 160ms ease;
}

.nav-tabs a:hover,
.nav-tabs a:focus-visible {
  border-color: var(--line);
  background: rgba(125, 244, 239, 0.07);
  color: var(--ice);
  outline: none;
}

.nav-tabs .member-tab {
  margin-left: 8px;
  border-color: rgba(255, 215, 119, 0.28);
  color: var(--amber-300);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 0;
}

.hero::after {
  position: absolute;
  top: -180px;
  right: -180px;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(125, 244, 239, 0.12);
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 110px rgba(31, 190, 207, 0.08) inset;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(400px, 0.95fr);
  align-items: center;
  gap: 72px;
  min-height: 500px;
}

.eyebrow, .section-number, .card-kicker, .news-type {
  margin: 0;
  color: var(--cyan-300);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 18px 0 24px;
  color: var(--ice);
  font-size: clamp(3rem, 6.3vw, 5.7rem);
  font-weight: 680;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero-lede {
  max-width: 650px;
  margin: 0;
  color: #adc2cf;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 19px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover, .button:focus-visible { transform: translateY(-2px); outline: none; }

.button-primary {
  border-color: var(--cyan-300);
  background: var(--cyan-300);
  color: var(--navy-950);
  box-shadow: 0 12px 34px rgba(31, 190, 207, 0.16);
}
.button-primary:hover, .button-primary:focus-visible { background: var(--ice); }
.button-secondary { color: #c7d9e3; }
.button-secondary:hover, .button-secondary:focus-visible { border-color: rgba(255, 215, 119, 0.38); color: var(--amber-300); }

.hero-mark {
  position: relative;
  padding: 26px;
  border: 1px solid rgba(125, 244, 239, 0.12);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(13, 41, 66, 0.82), rgba(4, 17, 31, 0.5));
  box-shadow: 0 38px 90px rgba(0, 0, 0, 0.3);
}

.hero-mark::before {
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(125, 244, 239, 0.1);
  border-radius: 22px;
  content: "";
  pointer-events: none;
}

.hero-mark > img {
  position: relative;
  width: 100%;
  filter: drop-shadow(0 22px 36px rgba(0, 0, 0, 0.25)) drop-shadow(0 0 16px rgba(38, 220, 229, 0.08));
}

.observation-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  padding: 15px 17px;
  border: 1px solid rgba(125, 244, 239, 0.14);
  border-radius: 14px;
  background: rgba(4, 17, 31, 0.72);
}

.observation-card > div { display: flex; align-items: center; gap: 9px; }
.observation-card p, .status-label { margin: 0; color: #b5cad6; font-size: 0.74rem; }

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-300);
  box-shadow: 0 0 0 5px rgba(125, 244, 239, 0.1), 0 0 16px var(--cyan-400);
}

.fact-bar {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 64px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fact-bar div {
  display: flex;
  flex-direction: column;
  min-height: 112px;
  padding: 24px 26px;
  border-right: 1px solid var(--line);
}
.fact-bar div:last-child { border-right: 0; }
.fact-bar strong { color: var(--ice); font-size: 1.32rem; letter-spacing: -0.02em; }
.fact-bar span { margin-top: 4px; color: var(--muted); font-size: 0.78rem; }

.section { padding-block: 124px; }
.section-heading { max-width: 820px; margin-bottom: 52px; }

.section-heading h2 {
  margin: 12px 0 18px;
  color: var(--ice);
  font-size: clamp(2rem, 4.2vw, 3.7rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.section-heading > p:last-child, .section-heading-split > p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.section-heading-split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  align-items: end;
  max-width: none;
  gap: 80px;
}
.section-heading-split h2 { margin-bottom: 0; }

.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.feature-card {
  min-height: 260px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, var(--surface), rgba(7, 26, 46, 0.5));
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.13);
}

.feature-card-wide {
  grid-row: span 2;
  min-height: 536px;
  background:
    radial-gradient(circle at 85% 16%, rgba(31, 190, 207, 0.15), transparent 18rem),
    linear-gradient(145deg, var(--surface-strong), rgba(7, 26, 46, 0.58));
}

.feature-card h3, .publication-panel h3, .news-list h3, .team-grid h3, .science-flow h3 {
  margin: 12px 0;
  color: var(--ice);
  font-size: 1.35rem;
  line-height: 1.3;
}

.feature-card p, .team-grid p, .science-flow p, .publication-panel p, .news-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.mini-metric { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 168px; }
.mini-metric span { padding: 7px 10px; border: 1px solid rgba(125, 244, 239, 0.15); border-radius: 999px; background: rgba(4, 17, 31, 0.42); color: #b9d0dc; font-size: 0.72rem; }

.section-band { border-top: 1px solid rgba(125, 244, 239, 0.09); border-bottom: 1px solid rgba(125, 244, 239, 0.09); background: rgba(7, 26, 46, 0.6); }

.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: var(--line); }
.team-grid article { min-height: 270px; padding: 30px; background: var(--navy-900); }

.team-index {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 52px;
  border: 1px solid rgba(255, 215, 119, 0.35);
  border-radius: 50%;
  color: var(--amber-300);
  font-size: 0.82rem;
  font-weight: 800;
}

.science-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.science-flow article {
  position: relative;
  min-height: 225px;
  padding: 27px;
  border-top: 2px solid var(--cyan-500);
  background: rgba(13, 41, 66, 0.46);
}

.science-flow article:not(:last-child)::after {
  position: absolute;
  top: 40px;
  right: -13px;
  z-index: 2;
  color: var(--amber-300);
  content: "→";
  font-size: 1.1rem;
}
.science-flow article > span { color: var(--cyan-300); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.76rem; }

.publication-panel {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 70px;
  margin-top: 18px;
  padding: 34px;
  border: 1px solid rgba(255, 215, 119, 0.2);
  border-radius: 18px;
  background: linear-gradient(100deg, rgba(243, 154, 50, 0.07), rgba(13, 41, 66, 0.35));
}
.publication-panel h3 { margin-bottom: 0; }

.news-list { border-top: 1px solid var(--line); }
.news-list article { display: grid; grid-template-columns: 170px 1fr; gap: 50px; padding: 32px 0; border-bottom: 1px solid var(--line); }
.news-list time { color: #9db4c2; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.79rem; }
.news-list h3 { margin: 8px 0 6px; font-size: 1.18rem; }
.news-placeholder { opacity: 0.68; }

.site-footer { padding: 70px 0 36px; background: #020b13; }
.footer-grid { display: grid; grid-template-columns: minmax(240px, 1fr) minmax(250px, 0.85fr) auto; align-items: start; gap: 48px; }
.footer-grid img {
  width: 230px;
  filter: drop-shadow(0 4px 14px rgba(38, 220, 229, 0.1));
}
.footer-grid p { margin: 12px 0 0; color: #7f98a8; font-size: 0.82rem; }
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 28px;
  border-left: 1px solid rgba(125, 244, 239, 0.13);
  color: #9fb5c2;
  font-style: normal;
  font-size: 0.82rem;
}
.footer-contact-heading { display: flex; align-items: center; gap: 9px; margin-bottom: 9px; }
.footer-label { color: var(--cyan-300); font-size: 0.7rem; font-weight: 750; letter-spacing: 0.16em; text-transform: uppercase; }
.placeholder-badge { padding: 2px 7px; border: 1px solid rgba(255, 215, 119, 0.25); border-radius: 999px; color: var(--amber-300); font-size: 0.58rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.footer-contact strong { color: var(--ice); font-size: 0.94rem; }
.footer-contact a { width: fit-content; margin-top: 5px; color: var(--cyan-300); }
.footer-contact a:hover, .footer-contact a:focus-visible { color: var(--ice); text-decoration: underline; text-underline-offset: 4px; }
.footer-links { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: flex-end; gap: 18px; color: #a9beca; font-size: 0.8rem; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--cyan-300); }
.footer-grid .footer-note { grid-column: 1 / -1; padding-top: 24px; border-top: 1px solid rgba(125, 244, 239, 0.09); }

@media (max-width: 980px) {
  .nav-shell { align-items: flex-start; flex-direction: column; gap: 8px; padding: 13px 0 10px; }
  .nav-tabs { width: 100%; overflow-x: auto; padding-bottom: 3px; }
  .hero { padding-top: 70px; }
  .hero-grid { grid-template-columns: 1fr; gap: 46px; }
  .hero-mark { max-width: 640px; }
  .section-heading-split { grid-template-columns: 1fr; gap: 24px; }
  .mini-metric { margin-top: 110px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-column: 1 / -1; justify-content: flex-start; }
}

@media (max-width: 720px) {
  html { scroll-padding-top: 132px; }
  .container, .nav-shell { width: min(calc(100% - 28px), var(--max-width)); }
  .brand, .brand img { width: 184px; flex-basis: auto; }
  .nav-tabs a { padding: 7px 10px; font-size: 0.78rem; }
  .nav-tabs .member-tab { margin-left: 0; }
  .hero { padding-top: 52px; }
  .hero h1 { font-size: clamp(2.75rem, 15vw, 4.2rem); }
  .hero-mark { padding: 15px; border-radius: 20px; }
  .observation-card { align-items: flex-start; flex-direction: column; }
  .fact-bar { grid-template-columns: repeat(2, 1fr); }
  .fact-bar div:nth-child(2) { border-right: 0; }
  .fact-bar div:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .section { padding-block: 88px; }
  .feature-grid, .team-grid, .science-flow, .publication-panel { grid-template-columns: 1fr; }
  .feature-card-wide { min-height: 420px; }
  .mini-metric { margin-top: 80px; }
  .team-grid { gap: 1px; }
  .team-grid article { min-height: 220px; }
  .team-index { margin-bottom: 32px; }
  .science-flow article:not(:last-child)::after { top: auto; right: 28px; bottom: -15px; transform: rotate(90deg); }
  .publication-panel { gap: 20px; }
  .news-list article { grid-template-columns: 1fr; gap: 9px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-contact { padding-top: 24px; padding-left: 0; border-top: 1px solid rgba(125, 244, 239, 0.13); border-left: 0; }
  .footer-links { grid-column: auto; justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}