:root {
  color-scheme: dark;
  --bg: #0b1020;
  --panel: rgba(255, 255, 255, 0.075);
  --panel-strong: rgba(255, 255, 255, 0.11);
  --text: #eef4ff;
  --muted: #aebbd3;
  --line: rgba(255, 255, 255, 0.16);
  --accent: #8bd3ff;
  --accent-2: #b69cff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(139, 211, 255, 0.22), transparent 32rem),
    radial-gradient(circle at 85% 0%, rgba(182, 156, 255, 0.18), transparent 34rem),
    linear-gradient(135deg, #08101f 0%, #101329 52%, #080b16 100%);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0;
}

.hero {
  padding: 72px 0 44px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2 { line-height: 1.05; margin: 0; }

h1 {
  max-width: 880px;
  font-size: clamp(3rem, 8vw, 6.6rem);
  letter-spacing: -0.075em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.55rem, 3vw, 2.3rem);
  letter-spacing: -0.045em;
}

.lede {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button, .links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease;
}

.button:hover, .links a:hover {
  transform: translateY(-2px);
  border-color: rgba(139, 211, 255, 0.6);
  background: rgba(139, 211, 255, 0.11);
}

.button.primary {
  color: #07101f;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-weight: 800;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 18px 0;
}

.stats div, .card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.stats div {
  padding: 24px;
}

.stats strong {
  display: block;
  font-size: 2.6rem;
  letter-spacing: -0.06em;
}

.stats span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.card {
  padding: 30px;
}

.feature {
  display: grid;
  grid-template-columns: 1.6fr 0.8fr;
  gap: 28px;
  align-items: center;
  margin: 18px 0;
  background: var(--panel-strong);
}

p, li {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

ul {
  margin: 0;
  padding-left: 1.2rem;
}

.links {
  display: grid;
  gap: 12px;
}

.links a {
  justify-content: flex-start;
  border-radius: 18px;
  min-height: 54px;
}

.note {
  margin-top: 18px;
  border-color: rgba(139, 211, 255, 0.28);
}

@media (max-width: 760px) {
  main { padding: 36px 0; }
  .hero { padding-top: 36px; }
  .grid, .stats, .feature { grid-template-columns: 1fr; }
  h1 { font-size: clamp(2.6rem, 16vw, 4rem); }
}
.hero-art { margin: 0 0 18px; padding: 10px; }
.hero-art img { display: block; width: 100%; border-radius: 22px; border: 1px solid var(--line); aspect-ratio: 16 / 9; object-fit: cover; }
.diagram-feature { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; align-items: center; margin-top: 18px; }
.diagram-feature img { width: 100%; display: block; border-radius: 20px; border: 1px solid var(--line); }
@media (max-width: 760px) { .diagram-feature { grid-template-columns: 1fr; } }