:root {
  --bg: #0b1020;
  --bg-soft: #131a31;
  --panel: rgba(19, 26, 49, 0.9);
  --panel-strong: #11192f;
  --text: #ecf4ff;
  --muted: #aab8d6;
  --accent: #8bffb0;
  --accent-strong: #5ee28f;
  --line: rgba(170, 184, 214, 0.18);
  --code: #9de7ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(circle at top, rgba(94, 226, 143, 0.18), transparent 34%),
    linear-gradient(180deg, #0b1020 0%, #0a0f1d 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

code, pre {
  font-family: "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  padding: 24px 0 48px;
}

.topbar {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 48px;
}

.topbar a {
  color: var(--muted);
  text-decoration: none;
}

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

.hero {
  padding: 40px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(19, 26, 49, 0.92), rgba(10, 15, 29, 0.94));
  box-shadow: var(--shadow);
}

.eyebrow,
.section-kicker,
.panel-label,
.caption {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow,
.section-kicker {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
}

.hero h1 {
  margin: 10px 0 14px;
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  line-height: 0.98;
}

.lede {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  font-weight: 600;
  line-height: 1.08;
}

.sublede {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.button:hover {
  border-color: rgba(139, 255, 176, 0.45);
  transform: translateY(-1px);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #08101d;
  border-color: transparent;
}

.hero-proof,
.quiet-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.hero-proof {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-proof li,
.quiet-list li {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.hero-proof li {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.94rem;
}

.section {
  padding: 88px 0 0;
}

.split {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: 36px;
}

.section h2 {
  margin: 10px 0 0;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.06;
}

.section-copy {
  color: var(--muted);
  font-size: 1.03rem;
}

.section-copy p:first-child {
  margin-top: 0;
}

.section-copy code {
  color: var(--code);
}

.stack {
  display: grid;
  gap: 16px;
}

.example-grid,
.link-grid {
  display: grid;
  gap: 18px;
}

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

.panel,
.link-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel {
  padding: 20px;
}

.panel-label {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
}

.panel pre {
  margin: 0;
  overflow-x: auto;
  color: var(--code);
  font-size: 0.96rem;
  line-height: 1.55;
}

.art {
  color: var(--accent);
}

.caption {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.74rem;
}

.quiet-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quiet-list li {
  padding: 10px 14px;
  border-radius: 16px;
  color: var(--text);
}

.signal {
  padding-bottom: 88px;
}

.link-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 22px;
}

.link-card {
  display: grid;
  gap: 10px;
  padding: 22px;
  text-decoration: none;
}

.link-card strong {
  font-size: 1.04rem;
}

.link-card span {
  color: var(--muted);
}

.link-card:hover {
  border-color: rgba(139, 255, 176, 0.45);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .split,
  .example-grid,
  .link-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 28px, 1120px);
  }

  .site-header {
    padding-top: 18px;
  }

  .section {
    padding-top: 64px;
  }

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

  .button {
    width: 100%;
  }
}