:root {
  color-scheme: dark;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  color: #eef5f2;
  background: #050706;
  --ink-soft: #a6b1ad;
  --paper: #101512;
  --line: rgba(232, 241, 237, 0.12);
  --green: #4aa98f;
  --green-dark: #2e7763;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 82% 8%, rgba(63, 155, 130, 0.12), transparent 28rem), #050706;
}

a {
  color: inherit;
  text-underline-offset: 3px;
}

.seo-nav,
.seo-main,
.seo-footer {
  width: min(100% - 40px, 880px);
  margin-inline: auto;
}

.seo-nav {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.8px;
  text-decoration: none;
}

.seo-mark {
  display: grid;
  width: 28px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 9px;
  color: #fff;
  background: var(--green);
  font-size: 13px;
  letter-spacing: 1px;
}

.seo-nav__links,
.seo-footer nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--ink-soft);
  font-size: 13px;
}

.seo-main {
  padding: 72px 0 64px;
}

.seo-hero {
  max-width: 720px;
  margin-bottom: 48px;
}

.seo-kicker {
  margin: 0 0 12px;
  color: #72c4ad;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(38px, 7vw, 68px);
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.seo-lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.65;
}

.seo-cta {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  margin-top: 28px;
  border-radius: 12px;
  color: #fff;
  background: var(--green-dark);
  font-weight: 750;
  text-decoration: none;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.seo-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
}

.seo-card--wide {
  grid-column: 1 / -1;
}

h2 {
  margin: 0 0 12px;
  font-size: 21px;
  letter-spacing: -0.025em;
}

h3 {
  margin: 22px 0 8px;
  font-size: 16px;
}

.seo-card p,
.seo-card li {
  color: var(--ink-soft);
  line-height: 1.7;
}

.seo-card p:last-child,
.seo-card ul:last-child,
.seo-card ol:last-child {
  margin-bottom: 0;
}

.seo-card li + li {
  margin-top: 8px;
}

.seo-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.6;
}

.seo-footer p {
  max-width: 570px;
  margin: 0;
}

@media (max-width: 640px) {
  .seo-nav {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 18px;
  }

  .seo-main {
    padding-top: 42px;
  }

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

  .seo-card--wide {
    grid-column: auto;
  }

  .seo-footer {
    flex-direction: column;
  }
}