:root {
  --bg: #121212;
  --surface: #181818;
  --surface-variant: #282828;
  --lime: #39ff14;
  --reject: #ff0033;
  --muted: #b3b3b3;
  --text: #ffffff;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.site-header {
  border-bottom: 3px solid var(--lime);
  padding: 1.25rem 1.5rem;
}

.brand {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.brand-tag {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.page {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-variant);
  border-radius: 12px;
  padding: 1.5rem 1.35rem 2rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.65rem;
  line-height: 1.25;
}

h2 {
  margin: 1.75rem 0 0.6rem;
  font-size: 1.1rem;
  color: var(--lime);
}

.updated {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
}

p {
  margin: 0 0 1rem;
  color: var(--text);
}

ul {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--text);
}

li + li {
  margin-top: 0.45rem;
}

.dont-list {
  border-left: 3px solid var(--reject);
  padding-left: 1rem;
  margin-left: 0;
  list-style: disc;
}

@media (min-width: 640px) {
  .card {
    padding: 2rem 2.25rem 2.5rem;
  }

  h1 {
    font-size: 1.85rem;
  }
}