:root {
  color-scheme: dark;
  --navy: #080b18;
  --navy-deep: #050711;
  --ink: #f2efff;
  --muted: #b9b4d0;
  --violet: #8b7cf6;
  --lavender: #c9b8ff;
  --cyan: #67e8f9;
  --line: rgba(201, 184, 255, 0.22);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--navy-deep);
}

body {
  min-height: 100svh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 5vw, 4rem);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background:
    radial-gradient(60rem 40rem at 12% -10%, rgba(139, 124, 246, 0.22), transparent 62%),
    radial-gradient(48rem 32rem at 100% 100%, rgba(103, 232, 249, 0.13), transparent 64%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-deep) 100%);
}

.shell {
  width: min(100%, 46rem);
  padding: clamp(2rem, 7vw, 4.5rem) clamp(1.5rem, 6vw, 4rem);
  text-align: center;
  border: 1px solid var(--line);
  border-radius: clamp(1.25rem, 3vw, 2rem);
  background:
    linear-gradient(150deg, rgba(139, 124, 246, 0.09), transparent 55%),
    rgba(8, 11, 24, 0.72);
  box-shadow:
    0 1.5rem 5rem rgba(3, 5, 14, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.mark {
  margin: 0 0 1.75rem;
  color: var(--lavender);
  font-size: clamp(0.8rem, 2.2vw, 0.95rem);
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.mark span {
  color: var(--cyan);
  padding: 0 0.2em;
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--violet);
  font-size: clamp(0.72rem, 2vw, 0.82rem);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1 {
  margin: 0 auto;
  max-width: 18ch;
  font-size: clamp(2rem, 6.5vw, 3.6rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.lede {
  margin: 1.1rem 0 0;
  color: var(--lavender);
  font-size: clamp(1.05rem, 2.6vw, 1.3rem);
  line-height: 1.5;
}

.rule {
  width: min(7rem, 38%);
  height: 1px;
  margin: clamp(1.75rem, 5vw, 2.5rem) auto;
  background: linear-gradient(90deg, transparent, var(--violet), var(--cyan), transparent);
  opacity: 0.8;
}

.note {
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  line-height: 1.6;
}

@media (max-width: 30rem) {
  body {
    padding: 1rem;
  }

  .shell {
    padding: 2.25rem 1.35rem;
    border-radius: 1.25rem;
  }

  .mark {
    letter-spacing: 0.22em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}