:root {
  color-scheme: light dark;
  --bg: #0b1020;
  --card: #121a33;
  --text: #eaf0ff;
  --muted: #a8b3cf;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --card: #ffffff;
    --text: #0b1020;
    --muted: #47506a;
    --border: rgba(11, 16, 32, 0.12);
    --shadow: 0 10px 30px rgba(11, 16, 32, 0.12);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 700px at 20% 10%, rgba(122, 92, 255, 0.22), transparent 55%),
    radial-gradient(1000px 650px at 70% 30%, rgba(0, 195, 255, 0.18), transparent 60%),
    var(--bg);
  color: var(--text);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 18px;
}

.header h1 {
  margin: 0 0 8px 0;
  letter-spacing: 0.2px;
}

.muted {
  margin: 0;
  color: var(--muted);
}

.card {
  margin-top: 28px;
  padding: 18px 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--card), transparent 0%);
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 10px 0;
  font-size: 18px;
}

.card p {
  margin: 0;
  line-height: 1.6;
}