:root {
  color-scheme: light;
  font-family: var(--font, system-ui, sans-serif);
  color: #172033;
  background: #f5f6f8;
  --muted: #4c5565;
  --border: #dbe0e7;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  color: #e5e9f0;
  background: #111722;
  --muted: #adb7c7;
  --border: #303b4d;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
header,
main,
footer {
  max-width: 64rem;
  margin: auto;
  padding: var(--spacing, 2rem);
}
header,
nav,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
header a {
  font-weight: 650;
}
nav a,
footer a {
  font-size: 0.9rem;
}
a {
  color: inherit;
  text-underline-offset: 0.2em;
}
main {
  min-height: 65vh;
  display: grid;
  align-items: center;
}
main section {
  padding-block: 3rem;
  max-width: 48rem;
}
h1 {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0 0 1.5rem;
}
p {
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.125rem;
  margin-bottom: 2rem;
}
.action {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius);
  margin: 0 0.75rem 0.75rem 0;
}
.action.secondary {
  background: transparent;
  color: inherit;
  border: 1px solid var(--border);
}
.action.link {
  background: transparent;
  color: inherit;
  padding-inline: 0;
}
.center {
  text-align: center;
}
footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
}
footer small {
  width: 100%;
}
@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    color-scheme: dark;
    color: #e5e9f0;
    background: #111722;
    --muted: #adb7c7;
    --border: #303b4d;
  }
}

:root{--primary:#2563eb;--radius:.6rem} .eyebrow{font-size:.8rem;letter-spacing:.15em;text-transform:uppercase;color:#2563eb;font-weight:700} button{font:inherit;cursor:pointer;border:0} .probe{margin-top:1.5rem;padding:1.5rem;border:1px solid var(--border);border-radius:1rem;background:white} .probe p{margin:1rem 0 0;font-size:1rem} .probe output{font-weight:700} @media(max-width:500px){header,main,footer{padding:1.25rem} main section{padding-block:1.5rem} nav{width:100%} h1{font-size:2.6rem}}