:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-glow: rgba(86, 180, 255, 0.18);
  --panel: rgba(10, 20, 35, 0.82);
  --panel-border: rgba(163, 194, 255, 0.18);
  --text: #eef4ff;
  --muted: #9fb3d1;
  --link: #8bd3ff;
  --link-hover: #d5f3ff;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top, var(--bg-glow), transparent 38%),
    linear-gradient(180deg, #0b1730 0%, var(--bg) 58%, #040913 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 32px 20px;
  color: var(--text);
  font: 16px/1.6 "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 24px;
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background: var(--panel);
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
}

h1,
h2,
p,
ol {
  margin: 0;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

p {
  margin-top: 12px;
  max-width: 58ch;
  color: var(--muted);
}

section {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(163, 194, 255, 0.14);
}

h2 {
  margin-bottom: 10px;
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

ol {
  padding-left: 20px;
}

li + li {
  margin-top: 8px;
}

a {
  color: var(--link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--link-hover);
}