:root{
  --navy:#173a63;
  --blue:#2b6ca3;
  --sky:#eaf6ff;
  --gold:#d8a63a;
  --ink:#213043;
  --muted:#68788b;
  --paper:#ffffff;
  --line:#dbe5ee;
  --shadow:0 12px 30px rgba(28,55,84,.12);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(1120px,92%);margin:auto}

.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:74px}
.brand{
  text-decoration:none;font-weight:900;letter-spacing:.06em;color:var(--navy);font-size:1.15rem
}
.main-nav{display:flex;gap:22px;align-items:center}
.main-nav a{text-decoration:none;font-weight:700;font-size:.95rem}
.main-nav a:hover{color:var(--blue)}
.nav-amazon{
  background:#ffbf43;padding:10px 14px;border-radius:999px;color:#2d2a22!important
}
.menu-toggle{display:none;border:0;background:none;font-size:1.6rem}

.hero{
  background:
    radial-gradient(circle at 88% 24%, rgba(255,210,107,.48), transparent 26%),
    linear-gradient(135deg,#f7fbff 0%,#eaf6ff 50%,#fff8e7 100%);
  padding:76px 0 64px;
}
.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:center}
.eyebrow{font-weight:900;letter-spacing:.15em;color:var(--blue);font-size:.78rem;margin:0 0 10px}
h1,h2,h3{color:var(--navy);line-height:1.15;margin-top:0}
h1{font-size:clamp(2.5rem,6vw,4.8rem);max-width:760px;margin-bottom:20px}
h2{font-size:clamp(2rem,4vw,3rem)}
h3{font-size:1.45rem}
.hero-copy{font-size:1.12rem;max-width:700px;color:#465a70}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.btn{
  display:inline-block;text-decoration:none;font-weight:800;border-radius:999px;
  padding:14px 22px;border:2px solid var(--navy);transition:.2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:var(--navy);color:white}
.btn.secondary{background:white;color:var(--navy)}
.btn.small{padding:10px 16px;font-size:.9rem;background:var(--navy);color:white}
.amazon-btn{background:#ffbf43;color:#2f2a20;border-color:#ffbf43}

.hero-art{height:330px;position:relative}
.book-stack{
  position:absolute;width:150px;height:220px;border-radius:9px 15px 15px 9px;
  box-shadow:0 16px 30px rgba(0,0,0,.15);
  border:3px solid rgba(255,255,255,.8);
}
.book-stack::after{
  content:"RJP JR";position:absolute;bottom:20px;left:0;right:0;text-align:center;
  color:white;font-weight:900;letter-spacing:.12em;font-size:.78rem
}
.b1{background:linear-gradient(160deg,#4a83c6,#9fd6ff);left:15%;top:66px;transform:rotate(-10deg)}
.b2{background:linear-gradient(160deg,#a55bc9,#f3a0ce);left:38%;top:25px;transform:rotate(2deg)}
.b3{background:linear-gradient(160deg,#e6a84a,#f7d178);left:59%;top:74px;transform:rotate(10deg)}

.section{padding:76px 0}
.tinted{background:#f7fbff}
.section-heading{text-align:center;max-width:760px;margin:0 auto 38px}
.section-heading p:last-child{color:var(--muted)}
.book-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px
}
.book-card{
  background:white;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column
}
.cover-placeholder{
  aspect-ratio:4/5;background:linear-gradient(150deg,var(--cover-a),var(--cover-b));
  display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;
  color:white;position:relative
}
.cover-placeholder::before{
  content:"BOOK COVER";position:absolute;top:14px;left:14px;
  font-size:.68rem;font-weight:900;letter-spacing:.14em;opacity:.85
}
.cover-placeholder strong{font-size:1.5rem;line-height:1.18;text-shadow:0 2px 6px rgba(0,0,0,.15)}
.book-card-content{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.book-card h3{font-size:1.12rem;margin:0}
.book-meta{font-size:.82rem;font-weight:800;color:var(--blue)}
.book-card p{font-size:.92rem;color:var(--muted);margin:0 0 8px}
.book-card .btn{margin-top:auto;text-align:center;padding:10px 14px;font-size:.9rem}

.series-card{
  background:white;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow);margin-bottom:24px
}
.series-card p{margin-bottom:0;color:var(--muted)}
.spacer-top{margin-top:52px}
.compact{grid-template-columns:repeat(3,1fr)}

.about-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:42px;align-items:start}
.about-card{
  background:var(--navy);color:white;padding:30px;border-radius:var(--radius);
  display:grid;gap:12px;box-shadow:var(--shadow)
}
.about-card strong{font-size:1.35rem}
.about-card span{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.2)}

.amazon-cta{
  text-align:center;padding:70px 0;background:var(--navy);color:white
}
.amazon-cta h2{color:white;margin-bottom:10px}
.amazon-cta p{opacity:.86;margin-bottom:24px}

.site-footer{background:#102943;color:white;padding:44px 0 18px}
.footer-grid{display:flex;justify-content:space-between;gap:30px}
.footer-grid p{opacity:.75}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{text-decoration:none}
.copyright{text-align:center;opacity:.65;margin-top:32px;font-size:.85rem}

@media (max-width:900px){
  .book-grid{grid-template-columns:repeat(2,1fr)}
  .compact{grid-template-columns:repeat(2,1fr)}
  .hero-grid,.about-grid{grid-template-columns:1fr}
  .hero-art{height:260px;max-width:460px;width:100%;margin:auto}
}
@media (max-width:700px){
  .menu-toggle{display:block}
  .main-nav{
    display:none;position:absolute;left:4%;right:4%;top:70px;background:white;
    border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);
    flex-direction:column;align-items:stretch
  }
  .main-nav.open{display:flex}
  .hero{padding-top:52px}
  .hero-art{display:none}
  .book-grid,.compact{grid-template-columns:1fr}
  .series-card,.footer-grid{flex-direction:column;align-items:flex-start}
}


/* Real book covers */
.cover-link{display:block;background:#eef3f7;padding:16px;text-decoration:none}
.book-cover{
  width:100%;
  aspect-ratio:4/5;
  object-fit:contain;
  background:white;
  border-radius:8px;
  box-shadow:0 8px 18px rgba(0,0,0,.10);
  transition:transform .2s ease;
}
.cover-link:hover .book-cover{transform:translateY(-3px)}
.centered-grid{justify-content:center}
@media (min-width:901px){
  .centered-grid{grid-template-columns:repeat(auto-fit,minmax(230px,260px))}
}


/* Expanded catalog update */
section, .series-heading{scroll-margin-top:92px}
.series-heading{max-width:820px;margin:0 auto 26px;text-align:center}
.series-heading h3{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:8px}
.series-heading p{margin:0;color:var(--muted)}
.book-grid{align-items:stretch}
.book-card-content{min-height:235px}
.hidden-fallback{display:none}
.real-fallback{
  width:100%;aspect-ratio:4/5;align-items:center;justify-content:center;flex-direction:column;
  gap:12px;padding:24px;text-align:center;border-radius:8px;color:white;
  background:linear-gradient(150deg,#2b6ca3,#8f65b5);box-shadow:0 8px 18px rgba(0,0,0,.10)
}
.real-fallback span{font-size:.68rem;font-weight:900;letter-spacing:.14em;opacity:.85}
.real-fallback strong{font-size:1.2rem;line-height:1.2}
.real-fallback small{font-weight:900;letter-spacing:.12em}
@media (max-width:1100px){.main-nav{gap:14px}.main-nav a{font-size:.88rem}}