:root {
  --bg-top: #08101f;
  --bg-bottom: #101b37;
  --panel: rgba(8, 14, 31, 0.78);
  --panel-strong: rgba(12, 19, 41, 0.92);
  --line: rgba(167, 192, 247, 0.2);
  --text: #edf3ff;
  --muted: #a9b7db;
  --accent: #93d6af;
  --warm: #efd28f;
  --shadow: 0 28px 64px rgba(3, 7, 18, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(28, 50, 112, 0.26), transparent 32%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
  position: relative;
  overflow-x: hidden;
}

.sky,
.stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.sky {
  background:
    radial-gradient(circle at 18% 20%, rgba(28, 57, 120, 0.28), transparent 18%),
    radial-gradient(circle at 82% 14%, rgba(65, 88, 164, 0.18), transparent 16%),
    radial-gradient(circle at 50% 110%, rgba(255, 233, 184, 0.08), transparent 24%);
}

.stars::before,
.stars::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.8) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(155, 183, 255, 0.75) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(255, 236, 191, 0.62) 0 1px, transparent 1.5px);
  background-size: 240px 240px, 320px 320px, 420px 420px;
  opacity: 0.42;
}

.stars-a::before {
  animation: drift-a 40s linear infinite;
}

.stars-b::after {
  animation: drift-b 58s linear infinite;
}

.shell {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 72px;
  position: relative;
  z-index: 1;
}

.hero {
  padding: 34px 34px 16px;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm);
}

h1,
h2 {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(3.2rem, 7vw, 5.6rem);
  line-height: 0.95;
  max-width: 10ch;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  margin-bottom: 16px;
}

.lede,
.panel p,
.metric-label,
.note,
.text-link {
  color: var(--muted);
}

.lede {
  margin: 22px 0 0;
  max-width: 720px;
  font-size: 1.12rem;
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button,
.text-link {
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  color: var(--text);
  background: rgba(14, 22, 44, 0.56);
  box-shadow: var(--shadow);
}

.button:hover,
.button:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(181, 209, 255, 0.35);
}

.button.primary {
  background: linear-gradient(135deg, rgba(148, 215, 176, 0.2), rgba(239, 210, 143, 0.16));
}

.metrics,
.grid {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

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

.metric {
  padding: 24px;
  min-height: 148px;
}

.metric-value {
  display: block;
  margin-bottom: 10px;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--text);
}

.panel {
  padding: 28px;
}

.feature {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: center;
  margin-top: 22px;
  background: var(--panel-strong);
}

.visual img {
  display: block;
  width: 100%;
  border-radius: 20px;
  border: 1px solid rgba(181, 209, 255, 0.16);
}

.link-list,
.detail-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.8;
  color: var(--muted);
}

.link-list a,
.text-link {
  color: var(--accent);
}

pre {
  margin: 0 0 18px;
  padding: 18px;
  border-radius: 18px;
  overflow-x: auto;
  border: 1px solid rgba(181, 209, 255, 0.12);
  background: rgba(5, 9, 21, 0.8);
}

code {
  font-family: "IBM Plex Mono", monospace;
}

@keyframes drift-a {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(24px);
  }
}

@keyframes drift-b {
  from {
    transform: translateY(0) translateX(0);
  }
  to {
    transform: translateY(-20px) translateX(14px);
  }
}

@media (max-width: 960px) {
  .metrics,
  .grid,
  .feature {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-left: 8px;
    padding-right: 8px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 20px, 1100px);
    padding-top: 28px;
  }

  .panel,
  .metric {
    padding: 22px;
    border-radius: 22px;
  }

  h1 {
    max-width: none;
  }
}