:root{
  --bg:#0b1220;
  --panel:#0f1a2f;
  --text:#e7edf7;
  --muted:#b7c2d6;
  --line:#233252;
  --accent:#7aa2ff;
  --accent2:#6ee7c8;
  --radius:18px;
  --shadow: 0 20px 60px rgba(0,0,0,.35);
  --max: 1040px;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", sans-serif;
  background: radial-gradient(1200px 800px at 20% 10%, rgba(122,162,255,.18), transparent 55%),
              radial-gradient(1000px 700px at 80% 20%, rgba(110,231,200,.12), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.6;
}

a{color:inherit}

.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding:28px 18px 70px;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0 26px;
}

.brand{
  display:flex;
  gap:10px;
  align-items:center;
  text-decoration:none;
  font-weight:800;
  letter-spacing:.2px;
}

.dot{
  width:12px;
  height:12px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px rgba(122,162,255,.08);
}

.menu{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.menu a{
  text-decoration:none;
  color:var(--muted);
  padding:8px 10px;
  border-radius:10px;
  border:1px solid transparent;
}

.menu a:hover{
  border-color:var(--line);
  color:var(--text);
  background:rgba(255,255,255,.03);
}

.panel{
  background: rgba(15,26,47,.7);
  border:1px solid rgba(35,50,82,.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  backdrop-filter: blur(8px);
}

.hero{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:16px;
  align-items:stretch;
}

@media (max-width: 900px){
  .hero{
    grid-template-columns:1fr;
  }
}

.kicker{
  display:inline-flex;
  gap:10px;
  align-items:center;
  color: var(--muted);
  font-weight:700;
  font-size: 13px;
  padding:8px 12px;
  border-radius:999px;
  border: 1px solid rgba(35,50,82,.9);
  background: rgba(255,255,255,.02);
}

.kicker span{
  width:6px;
  height:6px;
  border-radius:999px;
  background: var(--accent2);
  box-shadow: 0 0 0 5px rgba(110,231,200,.10);
}

h1{
  margin:14px 0 10px;
  font-size: 34px;
  line-height:1.15;
}

h2{
  margin:0 0 10px;
  font-size:18px;
}

p{
  margin:0 0 12px;
}

.muted{
  color:var(--muted);
}

.ctaRow{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:14px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 14px;
  border-radius:14px;
  border:1px solid rgba(35,50,82,.9);
  background: rgba(255,255,255,.02);
  text-decoration:none;
  font-weight:800;
  transition: .15s ease;
}

.btn:hover{
  transform: translateY(-1px);
}

.btn.primary{
  background: linear-gradient(135deg, rgba(122,162,255,.95), rgba(110,231,200,.75));
  border-color: transparent;
  color:#071021;
}

.btn--primary{
  background:#111;
  color:#fff;
  border-color:#111;
}

.btn--ghost{
  background:transparent;
  color:var(--text);
}

.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
  margin-top:16px;
}

@media (max-width: 900px){
  .grid{
    grid-template-columns:1fr;
  }
}

.card{
  padding:16px;
  border-radius:16px;
  background: rgba(255,255,255,.02);
  border:1px solid rgba(35,50,82,.9);
}

.card h3{
  margin:0 0 6px;
  font-size:15px;
}

.card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}

.hr{
  height:1px;
  background:rgba(35,50,82,.7);
  margin:18px 0;
}

.footer{
  margin-top:28px;
  padding-top:16px;
  border-top:1px solid rgba(35,50,82,.7);
  color:var(--muted);
  font-size:13px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}

.small{
  font-size:12px;
  color:var(--muted);
}

.list{
  margin:0;
  padding-left:18px;
  color:var(--muted);
}

.badge{
  display:inline-flex;
  gap:8px;
  align-items:center;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(35,50,82,.9);
  background: rgba(255,255,255,.02);
  color: var(--muted);
  font-weight:700;
  font-size:12px;
}

/* Book Page */
.book{
  padding:64px 16px;
}

.book__wrap{
  max-width:1100px;
  margin:0 auto;
  display:grid;
  gap:28px;
  grid-template-columns:360px 1fr;
  align-items:center;
}

.book__cover img{
  width:100%;
  height:auto;
  display:block;
  border-radius:16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.15);
}

.book__kicker{
  letter-spacing:.12em;
  text-transform:uppercase;
  font-size:12px;
  opacity:.7;
  margin:0 0 8px;
}

.book__title{
  font-size:34px;
  line-height:1.15;
  margin:0 0 12px;
}

.book__subtitle{
  font-size:16px;
  line-height:1.7;
  margin:0 0 16px;
  opacity:.9;
}

.book__bullets{
  margin:0 0 22px;
  padding-left:18px;
}

.book__bullets li{
  margin:8px 0;
}

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

/* Alternate Book Layout */
.book-hero{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:36px;
  align-items:center;
}

.book-cover-wrap{
  display:flex;
  justify-content:center;
}

.book-cover{
  width:100%;
  max-width:280px;
  border-radius:16px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.18);
  border:1px solid rgba(255,255,255,0.08);
  object-fit:cover;
}

.book-content h1{
  margin-bottom:14px;
}

.lead{
  font-size:18px;
  line-height:1.8;
  margin-bottom:18px;
}

.book-points{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:16px;
  margin:24px 0;
}

.mini-card{
  padding:18px;
  border-radius:14px;
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
}

.mini-card h3{
  margin:0 0 10px;
  font-size:16px;
}

.mini-card p{
  margin:0;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}

.book-details{
  margin-top:28px;
}

@media (max-width: 900px){
  .book-hero{
    grid-template-columns:1fr;
    text-align:center;
  }

  .book-content{
    text-align:left;
  }

  .book-cover{
    max-width:240px;
  }

  .book-points{
    grid-template-columns:1fr;
  }
}

@media (max-width: 860px){
  .book__wrap{
    grid-template-columns:1fr;
  }
}