:root{
  --bg:#0b0f19;
  --panel:#121a2b;
  --panel2:#0f1626;
  --text:#e8edf7;
  --muted:#a7b3cc;
  --border:#23314f;
  --accent:#7aa7ff;
  --accent2:#68f0c4;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background:
    radial-gradient(900px 500px at 20% 0%, rgba(122,167,255,.18), transparent 60%),
    radial-gradient(900px 500px at 80% 10%, rgba(104,240,196,.10), transparent 60%),
    var(--bg);
}

.wrap{max-width:1100px;margin:0 auto;padding:0 20px}

.header{
  position:sticky; top:0; z-index:20;
  background:rgba(11,15,25,.65);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(35,49,79,.55);
}

.header__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 0;
  gap:16px;
}

.brand{display:flex; align-items:center; gap:12px}
.brand__logo{
  width:44px; height:44px; display:grid; place-items:center;
  background:linear-gradient(135deg, rgba(122,167,255,.25), rgba(104,240,196,.18));
  border:1px solid rgba(35,49,79,.8);
  border-radius:14px;
  box-shadow: var(--shadow);
  font-size:22px;
}
.brand__text h1{
  font-size:18px;
  margin:0;
  letter-spacing:.2px;
}
.brand__text p{
  margin:4px 0 0;
  color:var(--muted);
  font-size:13px;
}

.nav{display:flex; gap:14px; flex-wrap:wrap}
.nav a{
  color:var(--muted);
  text-decoration:none;
  font-size:14px;
  padding:8px 10px;
  border-radius:12px;
}
.nav a:hover{color:var(--text); background:rgba(35,49,79,.35)}
.nav a.is-active{
  color:var(--text);
  background:rgba(122,167,255,.16);
  border:1px solid rgba(122,167,255,.35);
}

.section{padding:26px 0}
.section__head{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:12px; margin-bottom:14px;
}
.section__head h2{margin:0;font-size:18px}
.muted{color:var(--muted)}

.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:14px;
}

.card{
  grid-column: span 6;
  background:linear-gradient(180deg, rgba(18,26,43,.85), rgba(15,22,38,.85));
  border:1px solid rgba(35,49,79,.75);
  border-radius: var(--radius);
  padding:14px;
  box-shadow: var(--shadow);
  display:flex;
  flex-direction:column;
  gap:10px;
}
.card--wide{grid-column: 1 / -1}

.card h3{margin:0;font-size:16px}
.card p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}

.links{display:flex; gap:10px; flex-wrap:wrap}
.links a{
  text-decoration:none;
  font-size:13px;
  color:var(--text);
  padding:8px 10px;
  border-radius:12px;
  border:1px solid rgba(35,49,79,.9);
  background:rgba(35,49,79,.25);
}
.links a:hover{border-color:rgba(122,167,255,.55); background:rgba(122,167,255,.14)}

.footer{padding:18px 0 30px; text-align:center}

.profile{
  display:flex;
  gap:16px;
  align-items:center;
  padding:14px;
  border-radius: var(--radius);
  border:1px solid rgba(35,49,79,.75);
  background:linear-gradient(180deg, rgba(18,26,43,.85), rgba(15,22,38,.85));
  box-shadow: var(--shadow);
}
.profile__img{
  width:120px;
  height:120px;
  border-radius:18px;
  object-fit:cover;
  border:1px solid rgba(35,49,79,.9);
}
.profile__text h2{margin:0 0 6px 0;font-size:18px}
.profile__text p{margin:0;color:var(--muted);line-height:1.6}

.backlink{
  display:inline-block;
  margin: 6px 0 12px;
  color: var(--muted);
  text-decoration:none;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid rgba(35,49,79,.9);
  background:rgba(15,22,38,.8);
}
.backlink:hover{color:var(--text); background:rgba(35,49,79,.35)}

.lab h1{margin:6px 0 0; font-size:26px}
.lab .date{margin:6px 0 18px; color:var(--muted)}
.lab h2{
  margin:22px 0 10px;
  font-size:20px;
  border-top:1px solid rgba(35,49,79,.7);
  padding-top:14px;
}
.lab p{color:var(--muted); line-height:1.7}

.kv{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin:8px 0 0;
}
.kv span{
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(35,49,79,.9);
  background:rgba(35,49,79,.25);
  color:var(--muted);
}

.codeblock{
  position:relative;
  margin:12px 0;
  border:1px solid rgba(35,49,79,.75);
  border-radius: var(--radius);
  background:rgba(15,22,38,.8);
  overflow:hidden;
}
.codeblock pre{
  margin:0;
  padding:14px;
  font-family:var(--mono);
  font-size:13px;
  line-height:1.6;
  overflow:auto;
  color: var(--text);
}
.copybtn{
  position:absolute;
  top:10px;
  right:10px;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid rgba(35,49,79,.9);
  background:rgba(35,49,79,.25);
  color:var(--text);
  cursor:pointer;
  font-size:12px;
}
.copybtn:hover{border-color:rgba(122,167,255,.55); background:rgba(122,167,255,.14)}

.figure{
  margin:14px 0;
  border:1px solid rgba(35,49,79,.75);
  border-radius: var(--radius);
  background:rgba(15,22,38,.6);
  padding:12px;
}
.figure img{
  width:100%;
  border-radius: 12px;
  border:1px solid rgba(35,49,79,.7);
}
.figure figcaption{
  margin-top:10px;
  color:var(--muted);
  font-size:13px;
  line-height:1.5;
}

.video{
  width:100%;
  border-radius: 12px;
  border:1px solid rgba(35,49,79,.7);
  background:#000;
}

@media (max-width: 700px){
  .header__inner{flex-direction:column; align-items:flex-start}
  .card{grid-column: span 12}
  .profile{flex-direction:column; align-items:flex-start}
}