*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #060912;
  --surface: rgba(255,255,255,0.03);
  --border: rgba(255,255,255,0.07);
  --text: #e8eaf0;
  --text-dim: rgba(232,234,240,0.45);
  --accent: #4fc3f7;
  --accent-2: #7c6dfa;
  --mono: 'DM Mono', monospace;
  --display: 'Syne', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Instrument Sans', 'DM Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: hidden;
}


#orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

main, nav, footer { position: relative; z-index: 1; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }


.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(6,9,18,0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav__logo img {
  border-radius: 50%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.nav__logo:hover img { transform: rotate(180deg); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav__links a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--text); }

.nav__hf {
  color: var(--accent) !important;
  border: 1px solid rgba(79,195,247,0.25);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  transition: background 0.2s, color 0.2s !important;
}
.nav__hf:hover {
  background: rgba(79,195,247,0.1) !important;
  color: var(--accent) !important;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 4rem;
}

.hero__content {
  max-width: 800px;
}

.hero__eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.2s forwards;
}

.hero__title {
  font-family: var(--display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}

.hero__title span {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}

.hero__btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  border-radius: 100px;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--accent);
  color: #060912;
  font-weight: 600;
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79,195,247,0.3);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  background: var(--surface);
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.15);
}

.label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

h2 {
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.about {
  padding: 8rem 0;
  border-top: 1px solid var(--border);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: start;
}

.about__right p {
  color: var(--text-dim);
  margin-bottom: 1.2rem;
}
.about__right em { color: var(--text); font-style: normal; }

.stats {
  display: flex;
  gap: 3rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat__n {
  display: block;
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
}
.stat__l {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.research {
  padding: 8rem 0;
  border-top: 1px solid var(--border);
}

.section-head {
  margin-bottom: 4rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
}

.card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  transition: background 0.3s;
  cursor: default;
}
.card:hover { background: rgba(79,195,247,0.04); }

.card__num {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 1.2rem;
}

.card h3 {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
}

.card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.cta-strip {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.cta-strip h2 {
  margin-bottom: 2rem;
  color: var(--text-dim);
  font-weight: 400;
}
.cta-strip h2 strong { color: var(--text); font-weight: 700; }

.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.95rem;
}
.footer__brand img { border-radius: 50%; }

.footer__copy {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.footer a {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.footer a:hover { color: var(--accent); }

.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
  from { opacity: 0; transform: translateY(24px); }
}

@media (max-width: 768px) {
  .nav { padding: 1rem 1.5rem; }
  .nav__links { display: none; }
  .about__grid { grid-template-columns: 1fr; gap: 3rem; }
  .stats { gap: 1.5rem; }
  .cards { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .fade-in { opacity: 1; transform: none; }
  #orbs { display: none; }
}