:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #161b22;
  --muted: #667085;
  --line: #dfe5ec;
  --accent: #2257d6;
  --accent-soft: #eef3ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.shell {
  width: min(100%, 980px);
  margin: 0 auto;
  padding: 32px 20px 56px;
}

.hero,
.section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero {
  padding: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand > span {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: #fff;
  background: var(--accent);
  border-radius: 8px;
  font-weight: 800;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
  letter-spacing: 0;
}

.brand p,
.lead,
.card small,
.steps p {
  color: var(--muted);
}

.lead {
  max-width: 720px;
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.5;
}

.section {
  margin-top: 16px;
  padding: 24px;
}

.section.muted {
  background: #fbfcfe;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.section-title span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 8px;
  font-weight: 800;
}

h2 {
  font-size: 22px;
  letter-spacing: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.card {
  display: block;
  min-height: 150px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.platform {
  display: inline-block;
  padding: 6px 9px;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 800;
}

.card strong {
  display: block;
  margin-top: 22px;
  font-size: 20px;
}

.card small {
  display: block;
  margin-top: 6px;
}

.steps {
  display: grid;
  gap: 10px;
}

.steps div {
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps strong {
  display: block;
  font-size: 16px;
}

.steps p {
  margin-top: 6px;
  line-height: 1.45;
}

code {
  padding: 2px 6px;
  color: #111827;
  background: #edf1f6;
  border-radius: 5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow-wrap: anywhere;
}

@media (max-width: 720px) {
  .shell {
    padding: 16px 12px 32px;
  }

  .hero,
  .section {
    padding: 18px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .brand {
    align-items: flex-start;
  }
}