:root {
  --bg: #fbfbf9;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5a606b;
  --line: #e4e5e1;
  --accent: #3b5bdb;
  --accent-text: #ffffff;
  --accent-soft: #eef1fd;
  --radius: 12px;
  --max: 1080px;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #161920;
    --text: #e8e9ec;
    --muted: #a0a6b1;
    --line: #262a33;
    --accent: #8ea2ff;
    --accent-text: #0f1115;
    --accent-soft: #1b2133;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--accent-soft);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

.narrow {
  max-width: 760px;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 16px;
  background: var(--surface);
  padding: 8px 12px;
  z-index: 10;
}

.top {
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  z-index: 5;
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.01em;
}

nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}

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

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--accent);
}

nav a.button,
nav a.button:hover {
  color: var(--accent-text);
}

.button.small {
  padding: 7px 14px;
  font-size: 14px;
}

.button.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.button:focus-visible,
nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

section {
  padding: 72px 0;
}

section + section {
  border-top: 1px solid var(--line);
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(34px, 5.5vw, 58px);
  max-width: 18ch;
}

h2 {
  font-size: clamp(26px, 3.4vw, 34px);
}

h3 {
  font-size: 19px;
}

p {
  margin: 0 0 16px;
}

.hero {
  padding: 96px 0 80px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.lede {
  font-size: 20px;
  color: var(--muted);
  max-width: 62ch;
}

.lede.small {
  font-size: 16px;
}

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

.steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 32px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.steps li,
.cards li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.steps li {
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}

.steps p,
.cards p {
  color: var(--muted);
  margin: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 48px;
}

.note {
  font-weight: 600;
}

.checks {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checks li {
  padding: 10px 0 10px 30px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.checks li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 17px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.cards {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px;
  margin-bottom: 12px;
}

.pilot {
  background: var(--accent-soft);
}

.foot {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
  font-size: 15px;
}

.foot-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 720px) {
  nav a:not(.button) {
    display: none;
  }
  section {
    padding: 56px 0;
  }
  .hero {
    padding: 64px 0 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}