:root {
  color-scheme: light;
  font-family: Aptos, Inter, "Segoe UI", ui-sans-serif, system-ui, -apple-system, sans-serif;
  background: #f6f8fb;
  color: #111827;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 32px 16px;
  background: #f6f8fb;
}

main {
  width: min(960px, 100%);
  margin: 0 auto;
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #0b1f3f;
  font-weight: 900;
  text-decoration: none;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgb(11 31 63 / 0.16);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

a {
  color: #0b3a78;
  font-weight: 800;
}

.nav-links a,
.button {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 9px 12px;
  border-radius: 6px;
  text-decoration: none;
}

.nav-links a {
  border: 1px solid #c9d7ec;
  background: #ffffff;
  color: #0b1f3f;
}

.button {
  width: fit-content;
  background: #0b1f3f;
  color: #ffffff;
}

h1 {
  max-width: 780px;
  margin: 0 0 14px;
  color: #0b1f3f;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.02;
}

h2 {
  margin: 0 0 12px;
  color: #0b1f3f;
  font-size: 24px;
}

p {
  margin: 0;
  color: #4b5563;
  font-size: 18px;
  line-height: 1.6;
}

.hero {
  display: grid;
  gap: 18px;
  margin-bottom: 34px;
}

.hero p {
  max-width: 760px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0;
}

.card,
details {
  border: 1px solid #d5dbe7;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgb(22 22 22 / 0.06);
}

.card {
  padding: 16px;
}

.card strong {
  display: block;
  margin-bottom: 8px;
  color: #0b1f3f;
}

.card p,
details p {
  font-size: 15px;
}

section {
  margin-top: 32px;
}

ol {
  margin: 0;
  padding-left: 22px;
  color: #4b5563;
  font-size: 17px;
  line-height: 1.7;
}

details {
  padding: 14px 16px;
}

details + details {
  margin-top: 10px;
}

summary {
  color: #111827;
  cursor: pointer;
  font-weight: 900;
}

details p {
  margin-top: 8px;
}

@media (max-width: 720px) {
  body {
    padding: 22px 14px;
  }

  nav,
  .nav-links {
    align-items: flex-start;
    justify-content: flex-start;
  }

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

  nav {
    display: grid;
  }

  h1 {
    font-size: 36px;
  }
}