:root {
  color-scheme: dark;
  --bg: #070b16;
  --bg-soft: #0d1425;
  --panel: rgba(15, 23, 42, 0.74);
  --panel-strong: #101827;
  --text: #e5edf9;
  --muted: #94a3b8;
  --line: rgba(148, 163, 184, 0.18);
  --blue: #60a5fa;
  --cyan: #22d3ee;
  --violet: #8b5cf6;
  --green: #34d399;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  --radius: 28px;
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 16% 4%, rgba(96, 165, 250, 0.20), transparent 32rem),
    radial-gradient(circle at 84% 10%, rgba(139, 92, 246, 0.22), transparent 34rem),
    linear-gradient(180deg, #070b16 0%, #0b1020 48%, #070b16 100%);
  color: var(--text);
}

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

code {
  color: #bfdbfe;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px 24px;
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease;
}

.site-header[data-scrolled="true"] {
  border-bottom: 1px solid var(--line);
  background: rgba(7, 11, 22, 0.78);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(96, 165, 250, 0.35);
  border-radius: 13px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.22), rgba(139, 92, 246, 0.24));
  color: white;
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

.site-nav a:hover {
  color: var(--text);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 92px 24px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.78fr);
  gap: 38px;
  align-items: center;
  padding-top: 86px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: 0.88;
  letter-spacing: -0.075em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
}

.hero-text,
.feature-list,
.dark-card p,
.flow-step p,
.package-grid span,
.roadmap-grid span {
  color: var(--muted);
  line-height: 1.7;
}

.hero-text {
  max-width: 700px;
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 20px;
  font-weight: 800;
}

.button.primary {
  background: linear-gradient(135deg, var(--blue), var(--violet));
  box-shadow: 0 18px 50px rgba(96, 165, 250, 0.28);
}

.button.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: #dbeafe;
}

.proof-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 730px;
  margin: 0;
}

.proof-points div,
.flow-step,
.package-grid a,
.roadmap-grid div,
.terminal-card,
.code-grid pre {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.proof-points div {
  border-radius: 18px;
  padding: 18px;
}

.proof-points dt {
  color: var(--text);
  font-size: 1.45rem;
  font-weight: 900;
}

.proof-points dd {
  margin: 5px 0 0;
  color: var(--muted);
}

.terminal-card {
  overflow: hidden;
  border-radius: var(--radius);
}

.terminal-top {
  display: flex;
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.terminal-top span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ef4444;
}

.terminal-top span:nth-child(2) {
  background: #f59e0b;
}

.terminal-top span:nth-child(3) {
  background: #22c55e;
}

pre {
  margin: 0;
  overflow: auto;
  padding: 24px;
  color: #dbeafe;
  font-size: 0.9rem;
  line-height: 1.58;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.flow-grid,
.package-grid,
.roadmap-grid,
.code-grid {
  display: grid;
  gap: 18px;
}

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

.flow-step,
.package-grid a,
.roadmap-grid div {
  border-radius: 22px;
  padding: 24px;
}

.flow-step span {
  display: inline-block;
  margin-bottom: 36px;
  color: var(--green);
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 42px;
  align-items: start;
}

.feature-list {
  display: grid;
  gap: 18px;
  font-size: 1.05rem;
}

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

.package-grid a {
  min-height: 168px;
  transition: border-color 180ms ease, transform 180ms ease;
}

.package-grid a:hover {
  border-color: rgba(96, 165, 250, 0.54);
  transform: translateY(-3px);
}

.package-grid strong,
.roadmap-grid strong {
  display: block;
  margin-bottom: 12px;
}

.dark-card {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: 34px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 8px);
  background:
    linear-gradient(135deg, rgba(96, 165, 250, 0.12), rgba(139, 92, 246, 0.13)),
    var(--panel-strong);
  box-shadow: var(--shadow);
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #dbeafe;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--green);
  content: "✓";
}

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

.code-grid pre {
  border-radius: 24px;
}

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

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px 24px 64px;
  color: var(--muted);
}

.site-footer span {
  color: var(--text);
  font-weight: 800;
}

@media (max-width: 980px) {
  .site-nav {
    display: none;
  }

  .hero,
  .split,
  .dark-card,
  .code-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .section {
    padding: 64px 18px;
  }

  .hero {
    padding-top: 52px;
  }

  .proof-points,
  .flow-grid,
  .package-grid,
  .roadmap-grid {
    grid-template-columns: 1fr;
  }
}