:root {
  color-scheme: light dark;
  --bg: #f7f8fa;
  --fg: #111827;
  --muted: #5b6472;
  --card: #ffffff;
  --line: #dfe4ea;
  --accent: #0f766e;
  --accent-strong: #0b4f49;
  --shadow: 0 16px 48px rgba(17, 24, 39, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1017;
    --fg: #f5f7fb;
    --muted: #a7b0bf;
    --card: #121a24;
    --line: #273241;
    --accent: #5eead4;
    --accent-strong: #99f6e4;
    --shadow: none;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}

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

.page {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 36px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 800;
  text-decoration: none;
}

.mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(145deg, #0b1220, #0f766e);
  color: #ffffff;
  font-size: 19px;
  font-weight: 900;
}

.links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

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

.links a:hover {
  color: var(--fg);
}

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

.hero {
  padding: 36px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(34px, 7vw, 56px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  margin: 22px 0 8px;
  font-size: 18px;
}

p {
  margin: 0 0 14px;
}

ul {
  margin: 0 0 14px;
  padding-left: 22px;
}

li + li {
  margin-top: 6px;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 19px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 28px;
  margin-top: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.callout {
  border-left: 4px solid var(--accent);
  padding: 16px 18px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-radius: 6px;
}

.footer {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 720px) {
  .page {
    width: min(100% - 24px, 920px);
    padding-top: 24px;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 24px;
  }

  .links {
    justify-content: flex-start;
  }

  .hero,
  .section {
    padding: 22px;
  }

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