:root {
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #090d18;
  color: #f7f7fb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 90% 0%, rgba(91, 85, 255, .24), transparent 28rem),
    #090d18;
  line-height: 1.65;
}

main {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 80px;
}

.brand { color: #aaa4ff; font-weight: 800; letter-spacing: .12em; }
h1 { font-size: clamp(2rem, 7vw, 3.4rem); line-height: 1.1; margin: 14px 0; }
h2 { margin-top: 34px; color: #dcd9ff; }
p, li { color: #b8bbc7; }
a { color: #9ec5ff; }
.card {
  margin-top: 28px;
  padding: clamp(20px, 5vw, 34px);
  border: 1px solid #292f42;
  border-radius: 24px;
  background: rgba(18, 23, 37, .92);
}
.button {
  display: inline-block;
  margin-top: 12px;
  padding: 12px 18px;
  border-radius: 14px;
  background: #766dff;
  color: white;
  font-weight: 750;
  text-decoration: none;
}
nav { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 28px; }
footer { margin-top: 44px; color: #7f8292; font-size: .92rem; }