:root {
  --blue: #2f80ed;
  --sky: #56ccf2;
  --orange: #ffb547;
  --dark: #102033;
  --light: #f4faff;
  --white: #ffffff;
  --muted: #63758a;
  --line: rgba(16, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(86, 204, 242, .30), transparent 34%),
    radial-gradient(circle at bottom right, rgba(255, 181, 71, .28), transparent 32%),
    var(--light);
  color: var(--dark);
  line-height: 1.75;
}

header {
  min-height: 340px;
  padding: 42px 20px;
  display: grid;
  place-items: center;
  text-align: center;
}

.hero {
  max-width: 850px;
  width: 100%;
  padding: 34px;
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.85);
  border-radius: 34px;
  box-shadow: 0 24px 70px rgba(47, 128, 237, .16);
}

.hero-mark {
  width: 86px;
  height: 86px;
  margin: 0 auto 18px;
  display: grid;
  place-items: center;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--blue), var(--sky));
  color: white;
  font-size: 42px;
  box-shadow: 0 18px 34px rgba(47, 128, 237, .25);
}

h1 {
  margin: 0;
  font-size: clamp(38px, 7vw, 72px);
  letter-spacing: -3px;
  line-height: 1;
}

.hero p {
  margin: 12px auto 0;
  max-width: 620px;
  color: var(--muted);
  font-weight: 700;
}

nav {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

nav a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 800;
  padding: 10px 15px;
  border-radius: 999px;
  background: white;
  border: 1px solid var(--line);
}

nav a:hover {
  border-color: var(--blue);
  color: var(--blue);
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 18px 46px;
}

.page-title {
  margin: 0 0 18px;
  font-size: 34px;
  letter-spacing: -1px;
}

.card {
  background: rgba(255,255,255,.86);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: 0 14px 34px rgba(16, 32, 51, .06);
}

.card h2 {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 22px;
}

.card p {
  margin: 8px 0;
}

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

.feature {
  background: white;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
}

.feature strong {
  display: block;
  font-size: 18px;
  margin-bottom: 6px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--dark);
  color: white;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
}

.summary-list {
  padding-left: 20px;
}

.summary-list li {
  margin-bottom: 8px;
}

footer {
  text-align: center;
  padding: 30px 18px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 760px) {
  header {
    min-height: 300px;
    padding: 26px 14px;
  }

  .hero {
    padding: 26px 18px;
    border-radius: 28px;
  }

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

  h1 {
    letter-spacing: -2px;
  }
}