:root {
  --bg: #0f1115;
  --panel: #171a21;
  --text: #e7e9ee;
  --muted: #a2a8b4;
  --accent: #ff4444;
  --border: #262b36;
  --max: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  line-height: 1.65;
  font-size: 17px;
}

a {
  color: #7db4ff;
}

a:hover {
  color: #a9ccff;
}

header.site {
  border-bottom: 1px solid var(--border);
  background: rgba(15, 17, 21, 0.9);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
}

header.site .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-size: 16px;
}

nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
  font-size: 15px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover {
  color: var(--text);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 20px 72px;
}

h1 {
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 20px;
  letter-spacing: -0.4px;
}

h2 {
  font-size: 21px;
  margin: 40px 0 12px;
  padding-top: 8px;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0 0 16px;
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
}

.lede {
  color: var(--muted);
  font-size: 18px;
}

.updated {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 28px;
}

.notice {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 18px 20px;
  margin: 32px 0;
}

.notice h2 {
  margin-top: 0;
  font-size: 18px;
}

.links {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}

.links a {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  text-decoration: none;
  color: var(--text);
}

.links a:hover {
  border-color: #3b455a;
  color: var(--text);
}

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

footer.site .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 20px;
}

@media (max-width: 520px) {
  h1 {
    font-size: 27px;
  }
  nav {
    width: 100%;
    margin-left: 0;
  }
}