:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", sans-serif;
  background: #f6f6fb;
  color: #17171c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 0%, rgba(105, 83, 255, 0.12), transparent 34rem),
    #f6f6fb;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 72px;
}

header,
article {
  border: 1px solid rgba(26, 24, 40, 0.08);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 20px 70px rgba(35, 24, 88, 0.08);
}

header {
  padding: 28px 30px;
  margin-bottom: 18px;
}

article {
  padding: 16px 30px 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #6350eb;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: linear-gradient(145deg, #8a75ff, #3f56ce);
}

h1 {
  margin: 14px 0 8px;
  font-size: clamp(2rem, 7vw, 3.2rem);
  line-height: 1.08;
}

h2 {
  margin: 28px 0 10px;
  font-size: 1.15rem;
}

p,
li {
  color: #55535f;
  line-height: 1.75;
}

ul {
  padding-left: 1.25rem;
}

a {
  color: #5745d7;
  text-underline-offset: 3px;
}

.updated {
  margin: 0;
  color: #86838e;
  font-size: 0.9rem;
}

.contact {
  display: inline-flex;
  margin-top: 4px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(99, 80, 235, 0.09);
  font-weight: 600;
  text-decoration: none;
}

footer {
  padding: 22px 6px 0;
  color: #8b8993;
  font-size: 0.85rem;
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  :root {
    background: #101014;
    color: #f6f5fa;
  }

  body {
    background:
      radial-gradient(circle at 10% 0%, rgba(104, 80, 235, 0.2), transparent 34rem),
      #101014;
  }

  header,
  article {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(28, 27, 34, 0.9);
    box-shadow: none;
  }

  p,
  li {
    color: #b9b6c2;
  }

  a {
    color: #aa9dff;
  }
}

@media (max-width: 520px) {
  main {
    width: min(100% - 20px, 760px);
    padding-top: 24px;
  }

  header,
  article {
    border-radius: 19px;
    padding-left: 20px;
    padding-right: 20px;
  }
}