:root {
  --bg: #ffffff;
  --text: #000000;
  --muted: #555555;
  --border: rgba(0, 0, 0, .18);
  --hover: rgba(128, 128, 128, .10);
  --toggle-bg: #000000;
  --toggle-text: #ffffff;
}

html[data-mode="dark"] {
  --bg: #000000;
  --text: #f2f2f2;
  --muted: #8a8a8a;
  --border: rgba(255, 255, 255, .18);
  --hover: rgba(255, 255, 255, .06);
  --toggle-bg: #f2f2f2;
  --toggle-text: #000000;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Forum", Georgia, serif;
  font-size: 16px;
  line-height: 1.6;
  transition: background-color .4s ease, color .4s ease;
  scroll-behavior: smooth;
}

a { color: inherit; }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 40px 140px;
}

.header { margin-bottom: 60px; }

.eyebrow,
.updated {
  color: var(--muted);
  margin: 0 0 16px;
}

h1 {
  font-size: 28px;
  line-height: 1.25;
  margin: 0 0 10px;
  font-weight: 700;
}

h2 {
  font-size: 18px;
  margin: 42px 0 12px;
  font-weight: 700;
}

h3 {
  font-size: 15px;
  margin: 28px 0 10px;
  font-weight: 700;
}

p, li { margin: 0 0 14px; }

ul, ol {
  margin: 0 0 18px;
  padding-left: 24px;
}

.summary {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px;
  margin: 30px 0 34px;
}

.summary p:last-child,
.summary li:last-child { margin-bottom: 0; }

.contact-box {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
  margin: 30px 0;
}

.legal-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  border-top: 1px solid var(--border);
  margin-top: 54px;
  padding-top: 20px;
  color: var(--muted);
}

.legal-footer a {
  color: inherit;
  text-decoration: none;
}

.legal-footer a:hover { color: var(--text); }

.toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--toggle-bg);
  color: var(--toggle-text);
  border: 0;
  padding: 10px 16px;
  border-radius: 999px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  z-index: 10;
  transition: background-color .4s ease, color .4s ease, transform .15s ease;
}

.toggle:hover { transform: translateY(-1px); }

@media (max-width: 600px) {
  main { padding: 22px 22px 110px; }
  .header { margin-bottom: 40px; }
  h1 { font-size: 24px; }
  .toggle { right: 16px; bottom: 16px; }
}