:root{
  --bg:#070a0d;
  --panel:#0c1117;
  --panel2:#0f1620;
  --text:#e9eef7;
  --muted:#9fb0c8;
  --line:rgba(255,255,255,.10);
  --accent:#27ffd6; /* cyan */
  --accent2:#61ff85; /* green */
  --link:#61ff85;
  --linkHover:#27ffd6;
}

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

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

.layout{ display:flex; min-height:100vh; }

.sidebar{
  width:290px;
  background:linear-gradient(180deg, var(--panel), var(--panel2));
  border-right:1px solid var(--line);
  padding:18px 16px;
  position:sticky;
  top:0;
  height:100vh;
  overflow:auto;
}

.brand{
  display:flex; align-items:center; gap:10px;
  padding:10px 10px 14px;
  border-bottom:1px solid var(--line);
  margin-bottom:14px;
}
.brand .logo{
  width:34px; height:34px; border-radius:10px;
  background:
    radial-gradient(circle at 30% 30%, rgba(39,255,214,.25), transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(97,255,133,.18), transparent 60%),
    rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
}
.brand .title{ font-weight:900; letter-spacing:.5px; }
.brand .subtitle{ color:var(--muted); font-size:12px; margin-top:2px; }

.search{
  display:block; width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
  color:var(--text);
  outline:none;
  margin:10px 0 14px;
}

.nav-section{
  font-size:11px;
  letter-spacing:1.4px;
  text-transform:uppercase;
  color:rgba(159,176,200,.85);
  margin:14px 10px 8px;
}

.nav a{
  display:block;
  padding:9px 10px;
  border-radius:10px;
  color:rgba(233,238,247,.90);
  border:1px solid transparent;
}
.nav a:hover{
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.08);
}
.nav a.active{
  background:rgba(39,255,214,.10);
  border-color:rgba(39,255,214,.25);
  color:var(--accent);
}

.content{ flex:1; padding:32px 28px 60px; }
.container{ max-width:980px; }

h1{ font-size:34px; margin:0 0 10px; letter-spacing:.2px; }
h2{ margin-top:26px; font-size:22px; }
p{ color:rgba(233,238,247,.90); line-height:1.6 }
ul,ol{ line-height:1.7; color:rgba(233,238,247,.90) }

code{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  padding:2px 6px;
  border-radius:8px;
}

hr{ border:0; height:1px; background:var(--line); margin:22px 0; }

.badge{
  display:inline-block;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(97,255,133,.25);
  background:rgba(97,255,133,.08);
  color:rgba(233,238,247,.92);
  font-size:12px;
}

.footer{
  margin-top:34px;
  padding-top:14px;
  border-top:1px solid var(--line);
  color:rgba(159,176,200,.85);
  font-size:13px;
}

@media (max-width: 980px){
  .sidebar{ display:none; }
  .content{ padding:22px 16px 40px; }
}