:root {
  color-scheme: dark;
  --bg: #05070f;
  --bg-card: #0f1324;
  --bg-card-soft: #12172b;
  --bg-accent: linear-gradient(135deg, #5f5bff, #9b5cf6);
  --text: #f6f8ff;
  --text-muted: #c2c6e2;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #9b5cf6;
  --accent-soft: rgba(155, 92, 246, 0.15);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  background: radial-gradient(circle at top, rgba(155, 92, 246, 0.15), #05070f),
    var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

.hero {
  padding: 2.5rem clamp(1.5rem, 6vw, 6rem) 4rem;
  background: radial-gradient(circle at 20% 20%, rgba(95, 91, 255, 0.3), transparent),
    radial-gradient(circle at 80% 0, rgba(155, 92, 246, 0.25), transparent);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 5rem;
}

.logo {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
}

.hero-content {
  max-width: 720px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.9rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  text-decoration: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.btn.primary {
  background: var(--bg-accent);
  color: white;
}

.btn.ghost {
  border-color: var(--border);
  color: var(--text);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.stat-card {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  background: rgba(15, 19, 36, 0.5);
}

.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
}

.section {
  padding: 4rem clamp(1.5rem, 6vw, 6rem);
}

.section-header {
  max-width: 720px;
  margin-bottom: 2.5rem;
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.section p {
  color: var(--text-muted);
}

.research-grid,
.resource-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  border-radius: 1.4rem;
  padding: 1.8rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.card[data-link] {
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card[data-link]:hover,
.card[data-link]:focus-visible {
  border-color: var(--accent);
  transform: translateY(-4px);
  outline: none;
}

.card a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.highlights {
  background: rgba(5, 7, 15, 0.8);
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.milestone {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.8rem;
  border-radius: 1.4rem;
  border: 1px solid var(--border);
  background: var(--bg-card-soft);
  flex-wrap: wrap;
}

.milestone-year {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.milestone a {
  color: var(--text);
  font-weight: 600;
}

.milestone-links {
  display: flex;
  gap: 1rem;
}

.vision {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  background: rgba(15, 19, 36, 0.6);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.vision-points {
  display: grid;
  gap: 1.5rem;
}

.vision-points div {
  padding: 1.2rem 1.5rem;
  border-radius: 1.2rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.footer {
  padding: 3rem clamp(1.5rem, 6vw, 6rem);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-note {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    gap: 1.2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .milestone {
    flex-direction: column;
  }
}