:root {
  color-scheme: dark;
  --background: #0d0a24;
  --background-deep: #060414;
  --surface: #17113a;
  --ink: #f7f4ff;
  --muted: #bdb4dd;
  --cyan: #40cfff;
  --blue: #4a69ff;
  --purple: #c65cff;
  --pink: #ff70de;
  --line: rgb(150 125 255 / 40%);
}

* { box-sizing: border-box; }
html { background: var(--background-deep); }
body {
  min-height: 100vh;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, rgb(198 92 255 / 20%), transparent 30rem),
    radial-gradient(circle at 4% 50%, rgb(64 207 255 / 14%), transparent 28rem),
    linear-gradient(145deg, var(--background) 0%, var(--background-deep) 78%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}
a { color: var(--cyan); font-weight: 700; text-underline-offset: 4px; }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--pink); outline-offset: 4px; }
.site-header, footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-header { min-height: 88px; border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); font-size: clamp(1.05rem, 2vw, 1.35rem); font-weight: 800; letter-spacing: .02em; text-decoration: none; }
.brand span { color: var(--cyan); }
nav, footer div { display: flex; flex-wrap: wrap; gap: 18px; }
main { padding: 64px 0; }
.hero, .feature-grid article, .notice { border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(145deg, rgb(33 22 77 / 92%), rgb(13 10 36 / 94%)); }
.hero { padding: clamp(32px, 7vw, 82px); box-shadow: inset 0 1px 0 rgb(255 255 255 / 10%), 0 22px 50px rgb(0 0 0 / 22%); }
.eyebrow { display: inline-block; margin: 0 0 18px; color: var(--cyan); font-size: .75rem; font-weight: 800; letter-spacing: .13em; }
h1, h2 { line-height: 1.08; letter-spacing: -.035em; }
h1 { max-width: 760px; margin: 0; font-size: clamp(3rem, 8vw, 6.4rem); }
h1 span { color: var(--purple); }
.lede { max-width: 650px; margin: 28px 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.3rem); }
.button { display: inline-block; padding: 14px 22px; border: 1px solid rgb(255 255 255 / 22%); border-radius: 14px; color: var(--ink); background: linear-gradient(110deg, var(--cyan), var(--blue), var(--purple)); box-shadow: 0 12px 26px rgb(54 82 255 / 30%); text-decoration: none; }
.button:hover { filter: brightness(1.12); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.feature-grid article, .notice { padding: 24px; }
.feature-grid article:nth-child(1) { border-color: rgb(64 207 255 / 68%); }
.feature-grid article:nth-child(2) { border-color: rgb(198 92 255 / 68%); }
.feature-grid article:nth-child(3) { border-color: rgb(255 112 222 / 60%); }
.feature-grid span { color: var(--cyan); font-size: .78rem; font-weight: 800; letter-spacing: .12em; }
.feature-grid h2, .notice h2 { margin: 14px 0 8px; }
.feature-grid p, .notice p, .legal p, .legal li { color: var(--muted); }
.notice { margin-top: 30px; background: linear-gradient(120deg, rgb(48 25 101 / 94%), rgb(13 10 36 / 94%)); }
.legal { max-width: 820px; margin: 0 auto; padding: 52px 0 72px; }
.legal h1 { margin-bottom: 20px; font-size: clamp(3rem, 8vw, 5.5rem); }
.legal h2 { margin-top: 40px; padding-bottom: 10px; border-bottom: 1px solid var(--line); font-size: 1.45rem; }
.legal li + li { margin-top: 10px; }
footer { padding: 28px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: .92rem; }
footer p { margin: 0; }
@media (max-width: 760px) {
  body { padding: 0 16px; }
  .site-header, footer { align-items: flex-start; flex-direction: column; padding: 20px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  main { padding: 36px 0; }
}