:root {
  --bg: #06090f;
  --panel: #111724;
  --border: rgba(210, 216, 255, 0.12);
  --text: #f2f5fc;
  --muted: #98a1b8;
  --accent: #5a74ff;
  --accent-2: #3f5ef2;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 520px at 12% -8%, rgba(63, 94, 242, 0.22), transparent 60%),
    radial-gradient(900px 480px at 100% 0%, rgba(90, 116, 255, 0.14), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 22px 96px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 34px;
}
.brand .logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  display: block;
  box-shadow: 0 6px 22px rgba(43, 197, 216, 0.45);
}
.brand .name { font-weight: 700; font-size: 17px; letter-spacing: -0.2px; }
.brand .name small { display: block; color: var(--muted); font-weight: 500; font-size: 12.5px; }

h1 { font-size: 30px; letter-spacing: -0.5px; margin: 0 0 6px; }
.updated { color: var(--muted); font-size: 13.5px; margin: 0 0 22px; }

.toc {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 26px;
}
.toc a {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}
.toc a:hover { border-color: rgba(90, 116, 255, 0.6); text-decoration: none; }

.doc-title {
  font-size: 23px;
  letter-spacing: -0.3px;
  margin: 48px 0 4px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}
.doc-title:first-of-type { border-top: 0; padding-top: 0; margin-top: 8px; }

h2 {
  font-size: 18px;
  letter-spacing: -0.2px;
  margin: 30px 0 8px;
}

p, li { color: #d7dbe9; font-size: 15.5px; }
ul { padding-left: 20px; }
li { margin: 5px 0; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.lead {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  margin: 0 0 22px;
}
.lead p { margin: 0; color: #e6e9f2; }

footer {
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}
footer a { color: var(--muted); }

.back { display: inline-block; margin-top: 14px; color: var(--muted); font-size: 14px; }