:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #160b1c;
  color: #fff7ff;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 18% 15%, #f966f233, transparent 26%),
    radial-gradient(circle at 85% 80%, #7650ef38, transparent 30%),
    linear-gradient(145deg, #211027, #0e0a12);
}

main {
  width: min(520px, 100%);
  padding: clamp(30px, 7vw, 54px);
  border: 1px solid #ffffff1f;
  border-radius: 30px;
  background: #211426e8;
  box-shadow: 0 28px 80px #0008;
  text-align: center;
}

.mark {
  width: 76px;
  height: 76px;
  margin: 0 auto 22px;
  display: grid;
  place-items: center;
  border-radius: 25px;
  background: linear-gradient(145deg, #f966f2, #8c4bd0);
  box-shadow: 0 15px 35px #f966f244;
  font-size: 1.25rem;
  font-weight: 1000;
}

.eyebrow {
  margin: 0 0 10px;
  color: #ff9afa;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .16em;
}

h1 { margin: 0; font-size: clamp(2rem, 8vw, 3.4rem); line-height: 1; }
p { color: #d8c4da; line-height: 1.65; }

a {
  min-height: 52px;
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(120deg, #f966f2, #7650ef);
  box-shadow: 0 12px 28px #a84ebc55;
  font-weight: 850;
  text-decoration: none;
}

a:focus-visible { outline: 3px solid #ffe978; outline-offset: 4px; }