:root {
  color-scheme: dark;
  --bg: #08111e;
  --surface: #0f1a2d;
  --surface-muted: #13213a;
  --surface-strong: #182945;
  --text: #edf4ff;
  --text-soft: #a9bdd8;
  --line: rgba(150, 180, 230, 0.18);
  --accent: #4e89ff;
  --accent-soft: rgba(78, 137, 255, 0.14);
  --accent-strong: #6fa2ff;
  --shadow: 0 24px 56px rgba(1, 6, 16, 0.42);
  --radius-lg: 24px;
  --radius-md: 16px;
  --content-width: 1040px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(78, 137, 255, 0.18), transparent 28%),
    radial-gradient(circle at right 15%, rgba(28, 58, 119, 0.34), transparent 32%),
    linear-gradient(180deg, #09111e 0%, var(--bg) 100%);
  color: var(--text);
  font-family: "Segoe UI", Inter, Arial, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

h1,
h2,
h3,
p {
  margin-bottom: 0;
}

h1,
h2,
h3 {
  letter-spacing: -0.03em;
}