:root {
  color-scheme: dark;
  --bg: #030d19;
  --panel: #081b30;
  --text: #f8fafc;
  --muted: #a9bed0;
  --accent: #19d9f5;
  --gold: #f4b64d;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.6 system-ui,
    sans-serif;
}
header {
  padding: 24px max(24px, calc((100vw - 1000px) / 2));
  border-bottom: 1px solid #203b52;
}
header a {
  font-weight: 750;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--text);
}
main {
  max-width: 1000px;
  margin: 56px auto;
  padding: 0 24px;
}
h1 {
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.04em;
}
h2 {
  margin-top: 40px;
  font-size: 22px;
}
p {
  color: var(--muted);
}
ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 16px;
}
li {
  padding: 24px;
  border: 1px solid #23405a;
  border-radius: 12px;
  background: var(--panel);
}
a {
  color: var(--accent);
  text-underline-offset: 4px;
}
button {
  font: inherit;
  background: var(--gold);
  color: #081b30;
  border: 0;
  border-radius: 6px;
  padding: 10px 20px;
  cursor: pointer;
}
form {
  margin-top: 40px;
}
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}