:root{
  --bg:#07111d;
  --bg2:#0b1624;
  --panel:rgba(10,18,32,.88);
  --panel-2:rgba(14,24,42,.92);
  --line:rgba(80,170,255,.20);
  --line-strong:rgba(80,170,255,.42);
  --text:#edf5ff;
  --muted:#9db0c8;
  --primary:#58b6ff;
  --primary-2:#7c5cff;
  --success:#39d98a;
  --shadow:0 20px 50px rgba(0,0,0,.35);
  --radius:22px;
  --max:1400px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Arial,Helvetica,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top right, rgba(124,92,255,.18), transparent 30%),
    radial-gradient(circle at bottom left, rgba(88,182,255,.12), transparent 32%),
    linear-gradient(180deg,var(--bg),var(--bg2));
  min-height:100vh;
}

a{color:inherit;text-decoration:none}

.layout{
  display:grid;
  grid-template-columns:290px 1fr;
  min-height:100vh;
}

.sidebar{
  position:sticky;
  top:0;
  height:100vh;
  padding:28px 22px;
  background:linear-gradient(180deg, rgba(6,12,22,.98), rgba(8,16,28,.94));
  border-right:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:22px;
}

.brand{
  padding:18px;
  border:1px solid var(--line);
  border-radius:24px;
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
}

.kicker{
  letter-spacing:.18em;
  font-size:.72rem;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:10px;
  font-weight:700;
}

.brand h1{
  margin:0;
  font-size:1.9rem;
  line-height:1.05;
}

.brand p{
  margin:10px 0 0;
  color:var(--muted);
  line-height:1.5;
  font-size:.98rem;
}

.nav{
  display:flex;
  flex-direction:column;
  gap:12px;
}

.nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 16px;
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  color:var(--text);
  font-weight:700;
  transition:.2s ease;
}

.nav a:hover,
.nav a.active{
  transform:translateX(4px);
  border-color:var(--line-strong);
  background:linear-gradient(90deg, rgba(88,182,255,.18), rgba(124,92,255,.16));
}

.nav small{
  color:var(--muted);
  font-weight:600;
  font-size:.75rem;
}

.sidebar-card{
  margin-top:auto;
  border:1px solid var(--line);
  border-radius:20px;
  padding:16px;
  background:linear-gradient(180deg, rgba(88,182,255,.08), rgba(124,92,255,.08));
}

.sidebar-card h3{
  margin:0 0 8px;
  font-size:1rem;
}

.sidebar-card p{
  margin:0;
  color:var(--muted);
  line-height:1.5;
  font-size:.92rem;
}

.main{
  padding:30px;
}

.hero{
  max-width:var(--max);
  margin:0 auto 24px;
  min-height:330px;
  border:1px solid var(--line);
  border-radius:28px;
  overflow:hidden;
  background:
    linear-gradient(135deg, rgba(4,10,20,.74), rgba(8,16,30,.74)),
    url('https://images.unsplash.com/photo-1542751371-adc38448a05e?auto=format&fit=crop&w=1400&q=80') center/cover no-repeat;
  box-shadow:var(--shadow);
  display:flex;
  align-items:flex-end;
}

.hero.blog-hero{
  background:
    linear-gradient(135deg, rgba(4,10,20,.76), rgba(8,16,30,.78)),
    url('https://images.unsplash.com/photo-1511512578047-dfb367046420?auto=format&fit=crop&w=1400&q=80') center/cover no-repeat;
}

.hero.community-hero{
  background:
    linear-gradient(135deg, rgba(4,10,20,.76), rgba(8,16,30,.78)),
    url('https://images.unsplash.com/photo-1511882150382-421056c89033?auto=format&fit=crop&w=1400&q=80') center/cover no-repeat;
}

.hero-inner{
  padding:42px;
  max-width:760px;
}

.hero h2{
  font-size:clamp(2.2rem,4vw,4rem);
  line-height:1.02;
  margin:0 0 14px;
}

.hero p{
  margin:0 0 24px;
  color:#d8e7f8;
  font-size:1.05rem;
  line-height:1.7;
}

.cta-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 18px;
  border-radius:14px;
  border:1px solid var(--line);
  font-weight:800;
  letter-spacing:.02em;
  transition:.2s ease;
}

.btn.primary{
  background:linear-gradient(90deg, var(--primary), var(--primary-2));
  color:white;
  border:none;
}

.btn.secondary{
  background:rgba(255,255,255,.04);
  color:var(--text);
}

.btn:hover{transform:translateY(-2px)}

.section{
  max-width:var(--max);
  margin:0 auto 24px;
}

.grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:18px;
}

.card{
  background:linear-gradient(180deg, var(--panel), var(--panel-2));
  border:1px solid var(--line);
  border-radius:24px;
  padding:22px;
  box-shadow:var(--shadow);
}

.card h3,.card h4{
  margin:0 0 10px;
}

.card p{
  margin:0;
  color:var(--muted);
  line-height:1.65;
}

.card .eyebrow{
  color:var(--primary);
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:.72rem;
  font-weight:800;
  margin-bottom:10px;
}

.split{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:18px;
}

.list{
  display:grid;
  gap:14px;
}

.list-item{
  padding:16px;
  border-radius:18px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}

.list-item strong{
  display:block;
  margin-bottom:6px;
}

.meta{
  color:var(--muted);
  font-size:.9rem;
  margin-bottom:8px;
}

.footer{
  max-width:var(--max);
  margin:14px auto 0;
  color:var(--muted);
  font-size:.92rem;
  padding:8px 2px 30px;
}

@media (max-width: 1080px){
  .grid,.split{grid-template-columns:1fr}
}

@media (max-width: 860px){
  .layout{grid-template-columns:1fr}
  .sidebar{
    position:relative;
    height:auto;
    border-right:none;
    border-bottom:1px solid var(--line);
  }
  .main{padding:20px}
  .hero-inner{padding:28px}
}