:root {
  --bg: #030612;
  --panel: rgba(6, 13, 34, 0.78);
  --panel-2: rgba(12, 22, 54, 0.72);
  --text: #f5f8ff;
  --muted: #a8b8d5;
  --cyan: #75f4ff;
  --blue: #5f7cff;
  --violet: #9c77ff;
  --line: rgba(117, 244, 255, 0.22);
  --max: 1160px;
  --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background: url("assets/hero-bg.svg") center top / cover no-repeat;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(3,6,18,.98) 0%, rgba(3,6,18,.84) 46%, rgba(3,6,18,.60) 100%),
    radial-gradient(circle at 30% 15%, rgba(117,244,255,.12), transparent 35%),
    radial-gradient(circle at 75% 70%, rgba(156,119,255,.16), transparent 34%);
}

a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(3, 6, 18, .72);
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
}

.brand, .footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 760;
  letter-spacing: .02em;
}

.brand-mark {
  width: 38px;
  height: 38px;
}

nav {
  display: flex;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}

nav a:hover { color: var(--cyan); }

.hero {
  min-height: 88vh;
  max-width: var(--max);
  margin: 0 auto;
  padding: 112px 24px 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 12px;
  font-weight: 800;
  margin: 0 0 18px;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  font-family: "Segoe UI", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.09;
  letter-spacing: -0.022em;
  font-weight: 760;
  margin-bottom: 24px;
  max-width: 940px;
}

h2 {
  font-size: clamp(31px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}

h3 {
  font-size: 20px;
  letter-spacing: -.02em;
  margin-bottom: 10px;
}

.lead {
  font-size: clamp(18px, 2vw, 23px);
  color: #dbe8ff;
  max-width: 790px;
}

.notice {
  border: 1px solid rgba(117,244,255,.26);
  background: rgba(6, 18, 45, .74);
  border-radius: 18px;
  padding: 16px 18px;
  max-width: 760px;
  color: #dbe8ff;
  margin: 24px 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  font-weight: 700;
}

.button.primary {
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  color: #04101a;
  border: 0;
}

.button.secondary {
  background: rgba(255,255,255,.06);
  color: #eaf5ff;
}

.button.large {
  min-height: 58px;
  padding: 0 28px;
  white-space: nowrap;
}

.hero-card {
  background: rgba(6, 11, 30, .58);
  border: 1px solid rgba(117,244,255,.20);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 24px 80px rgba(0,0,0,.35), inset 0 0 0 1px rgba(255,255,255,.04);
}

.orbital {
  width: 180px;
  height: 180px;
  margin: 0 auto 26px;
  border-radius: 999px;
  position: relative;
  background: radial-gradient(circle, rgba(117,244,255,.38), rgba(95,124,255,.12) 48%, transparent 68%);
  border: 1px solid rgba(117,244,255,.20);
}

.orbital span {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 24px var(--cyan);
}

.orbital span:nth-child(1) { top: 35px; left: 44px; }
.orbital span:nth-child(2) { top: 90px; right: 30px; background: var(--violet); box-shadow: 0 0 24px var(--violet); }
.orbital span:nth-child(3) { bottom: 32px; left: 72px; }

.hero-card p, .prose p, .detail-card p, .audience-card p, .boundary-grid p, .partner p {
  color: var(--muted);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 84px 24px;
}

.split {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 58px;
  border-top: 1px solid var(--line);
}

.prose {
  font-size: 18px;
}

.evidence-grid, .scientific-detail, .audience, .boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.evidence-grid article, .detail-card, .audience-card, .boundary-grid div {
  background: var(--panel);
  border: 1px solid rgba(117,244,255,.15);
  border-radius: 24px;
  padding: 26px;
}

.num {
  color: var(--cyan);
  font-weight: 900;
  letter-spacing: .12em;
  margin-bottom: 34px;
  opacity: .9;
}

.scientific-detail {
  grid-template-columns: repeat(2, 1fr);
  padding-top: 32px;
}

.dark-panel {
  background: linear-gradient(135deg, rgba(7, 16, 42, .82), rgba(15, 17, 54, .70));
  border: 1px solid rgba(117,244,255,.18);
  border-radius: 34px;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 32px;
  padding: 44px;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  align-items: stretch;
}

.workflow div {
  min-height: 160px;
  border-radius: 20px;
  padding: 20px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
}

.workflow span {
  color: var(--cyan);
  font-weight: 900;
  font-size: 28px;
}

.workflow p {
  margin-top: 42px;
  color: #e6f3ff;
  font-weight: 700;
}

.audience {
  grid-template-columns: repeat(2, 1fr);
}

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

.partner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.partner p {
  max-width: 760px;
  font-size: 18px;
}

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 24px 70px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

footer p {
  margin-top: 18px;
  max-width: 840px;
  font-size: 14px;
}

@media (max-width: 900px) {
  .site-header {
    position: relative;
    align-items: flex-start;
    flex-direction: column;
  }

  nav { flex-wrap: wrap; gap: 14px; }

  .hero, .split, .dark-panel, .partner {
    grid-template-columns: 1fr;
    display: grid;
  }

  .partner { display: grid; }

  .evidence-grid, .scientific-detail, .audience, .boundary-grid, .workflow {
    grid-template-columns: 1fr;
  }

  .hero { padding-top: 64px; }
}

.provocation {
  max-width: 760px;
  margin: 0 0 4px;
  color: #f3fbff;
  font-size: 18px;
  font-weight: 650;
  border-left: 3px solid var(--cyan);
  padding-left: 16px;
}

.what-grid {
  padding-top: 32px;
}

.positive-grid div {
  background: linear-gradient(135deg, rgba(10, 27, 58, .82), rgba(21, 18, 62, .66));
}

.research-panel {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 42px;
  align-items: start;
  border-top: 1px solid var(--line);
}

.research-list {
  display: grid;
  gap: 14px;
}

.research-list div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 18px;
  background: var(--panel);
  border: 1px solid rgba(117,244,255,.15);
  border-radius: 24px;
  padding: 24px;
}

.research-list strong {
  color: var(--cyan);
}

.research-list span, .faq p, .roadmap-grid p {
  color: var(--muted);
}

.development-roadmap {
  border-top: 1px solid var(--line);
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.roadmap-grid div, .faq details {
  background: var(--panel);
  border: 1px solid rgba(117,244,255,.15);
  border-radius: 24px;
  padding: 24px;
}

.roadmap-grid span {
  display: block;
  color: var(--cyan);
  font-weight: 900;
  letter-spacing: .12em;
  margin-bottom: 20px;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.faq summary {
  cursor: pointer;
  font-weight: 760;
  color: #eaf5ff;
}

.faq p {
  margin: 14px 0 0;
}

.provocation {
  max-width: 820px;
  margin: 0 0 4px;
  color: #f3fbff;
  font-size: 18px;
  font-weight: 650;
  border-left: 3px solid var(--cyan);
  padding-left: 16px;
}

@media (max-width: 900px) {
  .roadmap-grid, .research-panel, .research-list div {
    grid-template-columns: 1fr;
  }
}

.founder-line {
  max-width: 760px;
  margin: 18px 0 0;
  color: #e9f8ff;
  font-size: 17px;
}

.founder-line strong {
  color: var(--cyan);
}

.founders-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.founder-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.founder-grid article {
  background: linear-gradient(135deg, rgba(10, 27, 58, .82), rgba(21, 18, 62, .66));
  border: 1px solid rgba(117,244,255,.16);
  border-radius: 24px;
  padding: 28px;
}

.founder-role {
  color: var(--cyan);
  font-weight: 760;
  margin-bottom: 14px;
}

.founder-grid p:not(.founder-role), .affiliation-note {
  color: var(--muted);
}

.affiliation-note {
  margin: 22px 0 0;
  font-size: 13px;
}

@media (max-width: 900px) {
  .founder-grid {
    grid-template-columns: 1fr;
  }
}

.founder-academic {
  color: #dbe8ff;
  font-weight: 650;
  margin-top: -8px;
  margin-bottom: 14px;
}