@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap");

:root {
  color-scheme: light;
  font-family: Poppins, Arial, sans-serif;
  color: #17324d;
  background: #f4f8fc;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 92% 4%, #dceeff 0 13rem, transparent 13.1rem),
    #f4f8fc;
}

main {
  width: min(850px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 70px;
}

header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  font-size: 17px;
  font-weight: 700;
}

.mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: #0a66c2;
  color: white;
  font-size: 22px;
}

article {
  padding: clamp(28px, 6vw, 64px);
  border: 1px solid #d7e3ee;
  border-radius: 24px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 18px 55px rgba(24, 65, 99, .09);
}

.eyebrow {
  margin: 0 0 12px;
  color: #0a66c2;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .13em;
}

h1 {
  max-width: 650px;
  margin: 0 0 26px;
  font-size: clamp(34px, 6vw, 54px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

h2 {
  margin: 34px 0 10px;
  font-size: 20px;
  line-height: 1.3;
}

p {
  margin: 0 0 16px;
  color: #49657d;
  font-size: 16px;
  line-height: 1.75;
}

a {
  color: #0a66c2;
  text-underline-offset: 3px;
}

.footer {
  margin: 40px 0 0;
  padding-top: 24px;
  border-top: 1px solid #dfe8f0;
  font-size: 14px;
}

@media (max-width: 560px) {
  main { width: min(100% - 20px, 850px); padding-top: 18px; }
  header { margin-left: 8px; }
  article { border-radius: 18px; }
}