:root{
  --bg-0:#1d1f21;
  --bg-1:#282a2e;
  --fg-0:#f3f4f6;
  --fg-1:#cbd5e1;
  --accent:#4ade80;
  --code:#ffb454;
  --border:#3b3e44;
}

/* Reset / basics */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--fg-0);
  font-family:"Inter",system-ui,-apple-system,sans-serif;
  line-height:1.55;
  padding:2rem 0 4rem;
}
a{color:var(--accent);}

/* Headings */
h1,h2,h3{
  font-weight:800;
  color:var(--accent);
  margin-top:2.4rem;
  margin-bottom:0.8rem;
}
h1{font-size:2.4rem;}
h2{font-size:1.6rem;}
h3{font-size:1.25rem;}

/* Layout wrapper */
.container{
  max-width:900px;
  margin:auto;
  padding:0 1.5rem;
}

/* Code + pre */
code,pre{
  font-family:Consolas,monospace;
  background:var(--bg-1);
  color:var(--code);
}
pre{
  overflow:auto;
  padding:1rem;
  border:1px solid var(--border);
  border-radius:6px;
}

/* Tables */
table{
  width:100%;
  border-collapse:collapse;
  margin:1rem 0;
}
th,td{
  padding:0.6rem 0.8rem;
  border:1px solid var(--border);
}
th{background:var(--bg-1);}

/* Collapsible <details> */
details{
  border:1px solid var(--border);
  border-radius:6px;
  margin:1rem 0;
}
details summary{
  cursor:pointer;
  padding:0.6rem 0.8rem;
  font-weight:600;
  background:var(--bg-1);
}
details[open] summary{border-bottom:1px solid var(--border);}
details>div{padding:0.8rem 0.8rem 1rem;}

/* kbd tags */
kbd{
  display:inline-block;
  font-size:0.85rem;
  border:1px solid var(--border);
  border-radius:4px;
  padding:2px 6px;
  background:var(--bg-1);
}

/* Blockquote */
blockquote{
  margin:1.5rem 0;
  padding-left:1rem;
  border-left:4px solid var(--accent);
  color:var(--fg-1);
  font-style:italic;
}

/* Footer */
.footer{
  text-align:center;
  margin-top:3rem;
  font-size:0.8rem;
  color:var(--fg-1);
}