/* Book Preview Page Styles */

:root {
    --navy: #1b2a4a;
    --forest: #2c4a2c;
    --crimson: #6b1a1a;
    --gold: #c9a84c;
    --gold-light: #d4b96a;
    --ink: #1a1a1a;
    --paper: #faf8f5;
    --warm-white: #fdfcfa;
    --muted: #6b6b78;
    --light-border: #e8e4dc;
    --section-bg: #f3f0ea;
}

.book-preview-page {
    font-family: 'Source Sans 3', sans-serif;
    color: var(--ink);
    line-height: 1.7;
    overflow-x: hidden;
}

/* ─── BREADCRUMB ─── */
.book-preview-page .book-breadcrumb {
    padding: 1.1rem 4rem;
    font-size: 0.82rem;
    color: var(--muted);
    border-bottom: 1px solid var(--light-border);
    background: var(--ink);
}

.book-preview-page .book-breadcrumb a { color: var(--muted); text-decoration: none; }
.book-preview-page .book-breadcrumb a:hover { color: var(--forest); }
.book-preview-page .book-breadcrumb .sep { margin: 0 0.5rem; opacity: 0.4; }

/* ─── BOOK HERO ─── */
.book-preview-page .book-hero {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 4rem;
    padding: 3.5rem 4rem 4rem;
    max-width: 1180px;
    margin: 0 auto;
    animation: fadeUp 0.7s ease-out;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.book-preview-page .book-cover-wrapper { position: relative; }

.book-preview-page .book-cover-wrapper img {
    width: 100%;
    display: block;
    box-shadow:
        10px 10px 30px rgba(0,0,0,0.22),
        2px 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.5s ease;
}

.book-preview-page .book-cover-wrapper:hover img {
    transform: perspective(800px) rotateY(-3deg) scale(1.01);
}

.book-preview-page .book-number-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 52px;
    height: 52px;
    background: var(--gold);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
    z-index: 2;
}

.book-preview-page .book-number-badge .badge-label {
    font-size: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--ink);
    font-weight: 600;
    line-height: 1;
}

.book-preview-page .book-number-badge .badge-num {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--ink);
    line-height: 1;
}

.book-preview-page .book-info { padding-top: 0.25rem; }

.book-preview-page .series-tag {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--forest);
    margin-bottom: 0.85rem;
    padding-bottom: 0.4rem;
    border-bottom: 2px solid var(--forest);
}

.book-preview-page .book-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.85rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 0.6rem;
    color: var(--ink);
}

.book-preview-page .book-subtitle {
    font-size: 1.15rem;
    color: var(--muted);
    margin-bottom: 1.75rem;
    line-height: 1.65;
    max-width: 540px;
}

.book-preview-page .book-meta {
    display: flex;
    gap: 2.25rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.book-preview-page .meta-item { display: flex; flex-direction: column; gap: 0.15rem; }

.book-preview-page .meta-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--muted);
    font-weight: 600;
}

.book-preview-page .meta-value { font-size: 0.95rem; font-weight: 600; color: var(--ink); }

.book-preview-page .book-description {
    font-size: 1.02rem;
    line-height: 1.85;
    color: #3a3a48;
    margin-bottom: 2rem;
    max-width: 560px;
}

/* ─── AUDIENCE ─── */
.book-preview-page .audience-block {
    background: var(--warm-white);
    border: 1px solid var(--light-border);
    border-left: 4px solid var(--forest);
    padding: 1.4rem 1.6rem;
    margin-bottom: 2rem;
}

.book-preview-page .audience-block h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.85rem;
}

.book-preview-page .audience-list { list-style: none; display: grid; gap: 0.55rem; }

.book-preview-page .audience-list li {
    font-size: 0.95rem;
    color: #3a3a48;
    padding-left: 1.4rem;
    position: relative;
}

.book-preview-page .audience-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--forest);
    font-weight: 700;
}

/* ─── CTAs ─── */
.book-preview-page .cta-group { display: flex; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }

.book-preview-page .btn-buy {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--forest);
    color: #fff;
    padding: 0.95rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

.book-preview-page .btn-buy:hover {
    background: #3a5e3a;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(44,74,44,0.25);
}

.book-preview-page .btn-chapter {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--ink);
    padding: 0.95rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid var(--ink);
    cursor: pointer;
    transition: all 0.3s;
}

.book-preview-page .btn-chapter:hover {
    background: var(--ink);
    color: var(--paper);
}

.book-preview-page .free-note {
    font-size: 0.78rem;
    color: var(--muted);
    font-style: italic;
    margin-bottom: 1rem;
}

/* ─── FOREWORD ─── */
.book-preview-page .foreword-section {
    background: var(--forest);
    padding: 3.5rem 4rem;
}

.book-preview-page .foreword-inner {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2.2fr;
    gap: 3rem;
    align-items: center;
}

.book-preview-page .foreword-attr {
    text-align: right;
    padding-right: 2.5rem;
    border-right: 2px solid var(--gold);
}

.book-preview-page .foreword-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: var(--gold);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.book-preview-page .foreword-name {
    font-family: 'Playfair Display', serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.4rem;
}

.book-preview-page .foreword-role {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.55;
}

.book-preview-page .foreword-quote {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.85);
    font-style: italic;
    position: relative;
    padding-left: 1.5rem;
}

.book-preview-page .foreword-quote::before {
    content: '"';
    font-size: 5rem;
    color: var(--gold);
    position: absolute;
    top: -2rem;
    left: -0.75rem;
    font-style: normal;
    line-height: 1;
    opacity: 0.4;
}

/* ─── CHAPTERS ─── */
.book-preview-page .chapters-section {
    padding: 4rem;
    max-width: 1180px;
    margin: 0 auto;
}

.book-preview-page .section-header { margin-bottom: 2.25rem; }

.book-preview-page .section-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.book-preview-page .section-header p { color: var(--muted); font-size: 1rem; }

.book-preview-page .chapters-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--light-border);
    border: 1px solid var(--light-border);
}

.book-preview-page .chapter-card {
    background: var(--warm-white);
    padding: 1.35rem 1.6rem;
    transition: background 0.2s;
}

.book-preview-page .chapter-card:hover { background: #f6f4ef; }

.book-preview-page .chapter-num {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.72rem;
    color: var(--forest);
    margin-bottom: 0.3rem;
    font-weight: 500;
}

.book-preview-page .chapter-name {
    font-family: 'Playfair Display', serif;
    font-size: 1.08rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.25rem;
}

.book-preview-page .chapter-desc {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.5;
}

/* ─── FRAMEWORKS ─── */
.book-preview-page .frameworks-section {
    background: var(--section-bg);
    padding: 4rem;
}

.book-preview-page .frameworks-inner { max-width: 1180px; margin: 0 auto; }

.book-preview-page .frameworks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.book-preview-page .framework-card {
    background: var(--warm-white);
    border: 1px solid var(--light-border);
    padding: 1.75rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.book-preview-page .framework-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.07);
}

.book-preview-page .fw-icon {
    width: 40px;
    height: 40px;
    background: var(--forest);
    color: var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.book-preview-page .framework-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.book-preview-page .framework-card p {
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.6;
}

.book-preview-page .fw-tag {
    display: inline-block;
    font-size: 0.62rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--forest);
    font-weight: 600;
    margin-top: 0.7rem;
    padding: 0.2rem 0.45rem;
    background: rgba(44,74,44,0.08);
}

/* ─── AUTHOR ─── */
.book-preview-page .author-section {
    padding: 4rem;
    max-width: 1180px;
    margin: 0 auto;
}

.book-preview-page .author-grid {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 2.5rem;
    align-items: start;
}

.book-preview-page .author-photo {
    width: 180px;
    height: 220px;
    background: linear-gradient(145deg, var(--navy), #2a3d6a);
    display: flex;
    align-items: center;
    justify-content: center;
}

.book-preview-page .author-photo-initials {
    font-family: 'Playfair Display', serif;
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--gold);
    opacity: 0.35;
}

.book-preview-page .author-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1.85rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.book-preview-page .author-creds {
    font-size: 0.78rem;
    color: var(--gold);
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 1.15rem;
    background: var(--ink);
    display: inline-block;
    padding: 0.3rem 0.75rem;
}

.book-preview-page .author-bio {
    font-size: 0.98rem;
    color: #3a3a48;
    line-height: 1.8;
    margin-bottom: 1rem;
    max-width: 580px;
}

.book-preview-page .author-stats {
    display: flex;
    gap: 2.5rem;
    margin-top: 1.5rem;
}

.book-preview-page .stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--ink);
    line-height: 1;
}

.book-preview-page .stat-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    font-weight: 600;
    margin-top: 0.2rem;
}

/* ─── COLLECTION ─── */
.book-preview-page .collection-section {
    background: var(--ink);
    padding: 4rem;
    text-align: center;
    color: var(--paper);
}

.book-preview-page .collection-section h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.book-preview-page .collection-section > p {
    color: #8888a0;
    font-size: 1rem;
    margin-bottom: 2.5rem;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.book-preview-page .collection-grid {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.book-preview-page .coll-book {
    width: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: transform 0.3s;
}

.book-preview-page .coll-book:hover { transform: translateY(-4px); }

.book-preview-page .coll-book-cover {
    width: 90px;
    height: 130px;
    border: 1px solid rgba(255,255,255,0.1);
    background: #1a1a1a;
    overflow: hidden;
    position: relative;
}

.book-preview-page .coll-book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-preview-page .coll-book-cover.placeholder {
    background: linear-gradient(145deg, #2a2a40, #1a1a2e);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.55rem;
    color: #5a5a70;
    text-align: center;
    padding: 0.5rem;
    line-height: 1.3;
}

.book-preview-page .coll-book.current .coll-book-cover {
    border: 2px solid var(--gold);
    box-shadow: 0 0 16px rgba(201,168,76,0.2);
}

.book-preview-page .coll-book-label {
    font-size: 0.6rem;
    color: #6a6a80;
    text-align: center;
    line-height: 1.3;
    max-width: 90px;
}

.book-preview-page .coll-book.current .coll-book-label {
    color: var(--gold);
    font-weight: 600;
}

.book-preview-page .btn-collection {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gold);
    color: var(--ink);
    padding: 0.9rem 2rem;
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

.book-preview-page .btn-collection:hover {
    background: var(--gold-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(201,168,76,0.3);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
    .book-preview-page .book-breadcrumb { padding: 1rem 1.5rem; }
    .book-preview-page .book-hero {
        grid-template-columns: 1fr;
        padding: 2rem 1.5rem;
        gap: 2rem;
    }
    .book-preview-page .book-cover-wrapper { max-width: 260px; margin: 0 auto; }
    .book-preview-page .book-title { font-size: 2.2rem; }
    .book-preview-page .foreword-section { padding: 2.5rem 1.5rem; }
    .book-preview-page .foreword-inner { grid-template-columns: 1fr; gap: 1.5rem; }
    .book-preview-page .foreword-attr {
        text-align: left;
        padding-right: 0;
        border-right: none;
        border-bottom: 2px solid var(--gold);
        padding-bottom: 1.25rem;
    }
    .book-preview-page .chapters-section { padding: 2.5rem 1.5rem; }
    .book-preview-page .chapters-grid { grid-template-columns: 1fr; }
    .book-preview-page .frameworks-section { padding: 2.5rem 1.5rem; }
    .book-preview-page .frameworks-grid { grid-template-columns: 1fr; }
    .book-preview-page .author-section { padding: 2.5rem 1.5rem; }
    .book-preview-page .author-grid { grid-template-columns: 1fr; }
    .book-preview-page .collection-section { padding: 2.5rem 1.5rem; }
}

/* ─── CAROUSEL HIGHLIGHTing ─── */
.cfo-scroll-book-item.is-highlighted {
    position: relative;
    z-index: 2;
    transform: scale(1.05); /* Slightly larger */
}

.cfo-scroll-book-item.is-highlighted .cfo-book-img-wrap {
    border: 3px solid var(--gold);
    box-shadow: 0 0 25px rgba(201,168,76,0.4), 0 10px 30px rgba(0,0,0,0.3);
}

.cfo-scroll-book-item.is-highlighted .cfo-book-meta h4 {
    color: var(--gold);
    font-weight: 700;
}

.cfo-scroll-book-item.is-highlighted::after {
    content: "Reading Now";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gold);
    color: var(--ink);
    padding: 2px 10px;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    white-space: nowrap;
    z-index: 5;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}