:root{
  --bg:#0b0f14;
  --card:#111826;
  --text:#e9eef5;
  --muted:#b6c2d0;
  --accent:#5ad0ff;
  --accent2:#7CFFB2;
  --border:rgba(255,255,255,.12);
  --shadow: 0 16px 40px rgba(0,0,0,.35);
  --max: 980px;
  --radius:18px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:var(--font);
  background: radial-gradient(1200px 700px at 20% 10%, rgba(90,208,255,.22), transparent 60%),
              radial-gradient(900px 600px at 80% 0%, rgba(124,255,178,.18), transparent 55%),
              var(--bg);
  color:var(--text);
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--max); margin:0 auto; padding:28px 18px}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:14px 18px; border:1px solid var(--border);
  border-radius:var(--radius); background:rgba(17,24,38,.70); backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}
.brand{display:flex; flex-direction:column; gap:2px}
.brand b{font-size:1.05rem; letter-spacing:.2px}
.brand span{font-size:.92rem; color:var(--muted)}
.navlinks{display:flex; gap:14px; flex-wrap:wrap; justify-content:flex-end}
.navlinks a{padding:8px 10px; border-radius:12px}
.navlinks a.active, .navlinks a:hover{background:rgba(255,255,255,.06); text-decoration:none}
.hero{
  margin-top:22px;
  padding:34px 22px;
  border:1px solid var(--border);
  border-radius:calc(var(--radius) + 6px);
  background: linear-gradient(180deg, rgba(17,24,38,.82), rgba(17,24,38,.62));
  box-shadow: var(--shadow);
}
.hero h1{margin:0 0 10px; font-size:2.1rem; line-height:1.15}
.badge{
  display:inline-flex; gap:8px; align-items:center;
  font-size:.92rem; color:var(--muted);
  border:1px solid var(--border); padding:8px 12px; border-radius:999px;
  background:rgba(255,255,255,.04);
}
.grid{
  margin-top:18px;
  display:grid;
  grid-template-columns: 1.25fr .75fr;
  gap:18px;
}
@media (max-width: 900px){
  .grid{grid-template-columns: 1fr}
}
.card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:rgba(17,24,38,.60);
  box-shadow: var(--shadow);
  padding:18px;
}
.card h2{margin:0 0 10px; font-size:1.25rem}
.card p{margin:0 0 12px; color:var(--text); opacity:.95; line-height:1.65}
.muted{color:var(--muted)}
.cta-row{display:flex; flex-wrap:wrap; gap:10px; margin:12px 0 6px}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:11px 14px; border-radius:14px; border:1px solid var(--border);
  background:rgba(255,255,255,.05); color:var(--text);
  text-decoration:none; font-weight:600;
}
.btn:hover{background:rgba(255,255,255,.09); text-decoration:none}
.btn.primary{border-color:rgba(90,208,255,.5); background:rgba(90,208,255,.10)}
.btn.primary:hover{background:rgba(90,208,255,.16)}
.btn.success{border-color:rgba(124,255,178,.5); background:rgba(124,255,178,.10)}
.btn.success:hover{background:rgba(124,255,178,.16)}
.quote{
  margin:12px 0;
  padding:14px 14px 12px;
  border-left:4px solid rgba(90,208,255,.6);
  background:rgba(255,255,255,.04);
  border-radius:14px;
}
.quote p{margin:0 0 6px}
.quote .by{font-size:.92rem; color:var(--muted)}
.footer{
  margin:26px 0 10px;
  color:var(--muted);
  font-size:.92rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  opacity:.9;
}
.smallprint{font-size:.92rem; color:var(--muted); line-height:1.55}
hr.sep{border:0; border-top:1px solid var(--border); margin:14px 0}

/* Cover-first hero */
.hero-split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:18px;
  align-items:center;
}
@media (max-width: 900px){
  .hero-split{grid-template-columns:1fr}
}
.cover{
  width:100%;
  height:auto;
  border-radius:18px;
  border:1px solid var(--border);
  box-shadow: var(--shadow);
  background:#000;
}
.illus{
  width:100%;
  height:auto;
  border-radius:16px;
  border:1px solid var(--border);
  margin:12px 0;
  box-shadow: var(--shadow);
  background:#000;
}