.book-promo{
  background:linear-gradient(135deg,rgba(0,122,204,0.12),rgba(79,195,247,0.05));
  border:1px solid var(--border2);
  border-radius:10px;
  padding:36px;
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:32px;
  align-items:center;
}

.book-promo-image{
  text-align:center;
}

.book-promo-image img{
  width:100%;
  max-width:220px;
  height:auto;
  border-radius:8px;
  box-shadow:0 18px 50px rgba(0,0,0,0.45);
  border:1px solid var(--border2);
}

.book-promo-content{
  min-width:0;
}

.book-promo-text{
  color:var(--text-dim);
  font-size:1rem;
  line-height:1.75;
  margin-bottom:18px;
  max-width:760px;
}

.book-promo-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:20px;
}

.book-promo-buttons{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

@media (max-width: 768px){
  .book-promo{
    grid-template-columns:1fr;
    text-align:center;
    padding:24px 18px;
    gap:20px;
  }

  .book-promo-image img{
    max-width:180px;
  }

  .book-promo-text{
    max-width:100%;
    font-size:0.95rem;
  }

  .book-promo-pills,
  .book-promo-buttons{
    justify-content:center;
  }

  .book-promo-buttons a{
    width:100%;
  }
}
.lesson-book-wrap{
  margin-top:56px;
}

.lesson-book-promo{
  background:linear-gradient(135deg,rgba(0,122,204,0.12),rgba(79,195,247,0.05));
  border:1px solid var(--border2);
  border-radius:10px;
  padding:32px;
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:28px;
  align-items:center;
}

.lesson-book-image{
  text-align:center;
}

.lesson-book-image img{
  width:100%;
  max-width:190px;
  height:auto;
  border-radius:8px;
  box-shadow:0 18px 50px rgba(0,0,0,0.45);
  border:1px solid var(--border2);
}

.lesson-book-content{
  min-width:0;
}

.lesson-book-eyebrow{
  font-size:0.72rem;
  text-transform:uppercase;
  letter-spacing:0.14em;
  color:var(--accent);
  margin-bottom:10px;
  font-family:'JetBrains Mono',monospace;
}

.lesson-book-title{
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  font-size:clamp(1.5rem,3vw,2.2rem);
  color:var(--white);
  margin-bottom:14px;
  line-height:1.15;
}

.lesson-book-text{
  color:var(--text-dim);
  font-size:0.96rem;
  line-height:1.75;
  margin-bottom:18px;
}

.lesson-book-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:20px;
}

.lesson-pill{
  display:inline-flex;
  align-items:center;
  padding:6px 12px;
  border-radius:999px;
  border:1px solid var(--border2);
  background:rgba(255,255,255,0.03);
  color:var(--text);
  font-size:0.78rem;
}

.lesson-book-buttons{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.lesson-book-btn{
  display:inline-block;
  padding:11px 18px;
  border-radius:6px;
  text-decoration:none;
  font-size:0.88rem;
  font-weight:600;
  transition:all 0.2s ease;
  border:1px solid transparent;
}

.lesson-book-btn-primary{
  background:var(--vsc-blue);
  color:#fff;
  border-color:var(--vsc-blue);
}

.lesson-book-btn-primary:hover{
  background:var(--vsc-blue-light);
  border-color:var(--vsc-blue-light);
}

.lesson-book-btn-secondary{
  background:transparent;
  color:var(--white);
  border-color:var(--border2);
}

.lesson-book-btn-secondary:hover{
  border-color:var(--vsc-blue);
  color:var(--white);
}

@media (max-width: 768px){
  .lesson-book-promo{
    grid-template-columns:1fr;
    text-align:center;
    padding:24px 18px;
  }

  .lesson-book-image img{
    max-width:170px;
  }

  .lesson-book-pills,
  .lesson-book-buttons{
    justify-content:center;
  }

  .lesson-book-btn{
    width:100%;
  }
}