@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

:root{
  --bg:#0b1514;
  --card:#0f1f1e;
  --text:#eafff7;
  --muted:#b9d8cf;
  --line:#17322e;
  --link:#86ffe6;
  --accent:#00d1a2;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  line-height:1.7;
}

.wrap{
  display:grid;
  grid-template-columns: 300px 1fr;
  gap:24px;
  max-width: 1200px;
  margin:32px auto;
  padding:0 20px;
}

.sidebar{
  position:sticky; top:20px;
  align-self:start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px;
}

.brand{font-weight:800; font-size:20px; margin-bottom:6px}
.updated{color:var(--muted); font-size:14px; margin-bottom:12px}

.toc{display:flex; flex-direction:column; gap:6px}
.toc a{
  display:block; padding:8px 10px;
  border-radius:10px;
  color:var(--text); text-decoration:none;
  border:1px solid transparent;
}
.toc a:hover{background:#0f2623}
.toc a.is-active{border-color:#1dd7b3; background:#0f2623}

.content{min-width:0}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:22px;
}

.intro{color:#cfeee7}
.separator{height:1px; background:var(--line); margin:16px 0}

h1,h2{margin:0 0 8px}
h2{font-size:22px}
p,li{color:#cfeee7}

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

.footer{margin:16px 0; text-align:center; color:#cfeee7}

@media (max-width: 900px){
  .wrap{grid-template-columns:1fr}
  .sidebar{position:static}
}