/* Base styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #0f172a;
  background-color: #0b1120;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  margin: 0 0 0.5rem;
}

p {
  margin: 0.25rem 0 0.75rem;
}

/* Layout */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(15, 23, 42, 0.85);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: #e5e7eb;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  font-size: 0.9rem;
}

.nav-links a {
  color: #cbd5f5;
}

.nav-links .nav-cta {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(129, 140, 248, 0.8);
  background: radial-gradient(circle at top left, rgba(129, 140, 248, 0.2), transparent);
}

main {
  padding-bottom: 3rem;
}

.section {
  padding: 3.5rem 0;
}

.section:nth-child(odd) {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.06), transparent);
}

.section:nth-child(even) {
  background: radial-gradient(circle at bottom right, rgba(129, 140, 248, 0.08), transparent);
}

.section-header {
  max-width: 640px;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 1.7rem;
  color: #e5e7eb;
}

.section-header p {
  color: #9ca3af;
}

.section-note {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: #9ca3af;
}

.section-note a {
  color: #a5b4fc;
}

.section-cta {
  margin-top: 2rem;
}

/* Hero */
.hero {
  padding: 3.5rem 0 3rem;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.25), transparent),
              radial-gradient(circle at bottom right, rgba(129, 140, 248, 0.35), transparent);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.2fr);
  gap: 2.5rem;
  align-items: stretch;
}

.hero-copy h1 {
  font-size: 2.6rem;
  line-height: 1.05;
  color: #f9fafb;
}

.hero-subtitle {
  margin-top: 0.9rem;
  font-size: 1.02rem;
  line-height: 1.6;
  color: #e5e7eb;
}

.hero-note {
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: #cbd5f5;
}

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #a5b4fc;
}

.hero-actions {
  margin-top: 1.5rem;
}

.hero-secondary-links {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: #cbd5f5;
}

.hero-secondary-links a {
  color: #c4b5fd;
}

.hero-card {
  align-self: stretch;
}

.hero-card-inner {
  height: 100%;
  border-radius: 1.25rem;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.95), rgba(30, 64, 175, 0.55));
  padding: 1.75rem 1.6rem;
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.75);
}

.hero-card-inner h2 {
  font-size: 1.4rem;
  color: #e5e7eb;
}

.hero-card-inner .card-text {
  font-size: 0.95rem;
  color: #d1d5db;
}

.hero-card-inner .card-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #a5b4fc;
  margin-bottom: 0.35rem;
}

.hero-card-inner .card-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1.5rem;
}

.hero-card-inner .card-list li {
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: #d1d5db;
}

/* Grid & cards */
.grid {
  display: grid;
  gap: 1.3rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border-radius: 1rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.92), rgba(30, 64, 175, 0.45));
  padding: 1.35rem 1.25rem;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.65);
}

.card h3 {
  font-size: 1.1rem;
  color: #e5e7eb;
}

.card p {
  font-size: 0.94rem;
  color: #d1d5db;
}

.text-link {
  font-size: 0.9rem;
  color: #a5b4fc;
}

.text-link:hover {
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn.primary {
  background: linear-gradient(135deg, #4f46e5, #22d3ee);
  color: #f9fafb;
  box-shadow: 0 18px 45px rgba(56, 189, 248, 0.45);
}

.btn.secondary {
  background: rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
  border: 1px solid rgba(148, 163, 184, 0.7);
}

.btn:hover {
  filter: brightness(1.05);
}

.section-outcomes .card,
.section-inside .card,
.section-ecosystem .card,
.section-forwho .card {
  backdrop-filter: blur(12px);
}

/* Lists */
.bullet-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.bullet-list li {
  margin-bottom: 0.6rem;
  font-size: 0.93rem;
  color: #d1d5db;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(55, 65, 81, 0.8);
  background: #020617;
  padding: 1.8rem 0 2rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  font-size: 0.9rem;
  color: #9ca3af;
}

.footer-links a {
  color: #a5b4fc;
}

.footer-note {
  font-size: 0.82rem;
  color: #6b7280;
}

/* Responsive */
@media (max-width: 880px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 2.5rem;
  }

  .hero-copy h1 {
    font-size: 2.1rem;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .section {
    padding: 2.5rem 0;
  }
}