*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);color:var(--color-text);background:var(--color-bg);line-height:1.5}
img{max-width:100%;display:block}
a{color:var(--color-primary);text-decoration:none}
h1,h2,h3{font-family:var(--font-heading);line-height:1.2}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.section{padding:32px 0}

.site-header{border-bottom:1px solid #e5e7eb;position:sticky;top:0;background:var(--color-bg);z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:12px 16px}
.brand{font-weight:700;font-size:1.25rem;color:var(--color-text)}
.logo{max-height:40px}
.main-nav{display:flex;gap:16px;flex-wrap:wrap}
.main-nav a{font-weight:500}
.nav-search input{padding:8px 12px;border:1px solid #d1d5db;border-radius:var(--radius);width:200px;max-width:100%}

.hero{background:var(--color-primary);color:#fff;padding:56px 0;text-align:center}
.hero h1{font-size:2rem;margin-bottom:8px}
.hero p{margin-bottom:16px;opacity:.9}

.btn{display:inline-block;padding:10px 20px;border-radius:var(--radius);font-weight:600;cursor:pointer;border:none}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-accent{background:var(--color-accent);color:#111}
.btn-amazon{background:#ff9900;color:#111;margin:4px 8px 4px 0}
.btn-sm{padding:6px 12px;font-size:.875rem}
.btn-lg{padding:14px 28px;font-size:1.1rem}
.amazon-buttons{margin:16px 0}
.amazon-offer {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 4px 10px 4px 0;
  flex-wrap: wrap;
}

.book-price {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 6px 14px;
  border-radius: 999px; /* pill shape */
  background-color: #f0fdf4; /* softer green background */
  border: 1px solid #bbf7d0; /* subtle border */
  color: #065f46; /* deeper green for text */
  font-size: 0.95rem; /* slightly smaller for balance */
  font-weight: 600; /* professional, less heavy */
  line-height: 1.4;
  letter-spacing: 0.3px; /* improves readability */
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.book-price:hover {
  background-color: #dcfce7; /* hover effect */
  color: #047857;
}

.grid{display:grid;gap:20px}
.grid-books{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
.grid-series{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.grid-categories{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}

.book-card,.series-card{display:block;border:1px solid #e5e7eb;border-radius:var(--radius);overflow:hidden;background:#fff;transition:box-shadow .15s}
.book-card:hover,.series-card:hover{box-shadow:0 4px 14px rgba(0,0,0,.08)}
.book-cover,.series-cover{position:relative;aspect-ratio:3/4;background:#f3f4f6;overflow:hidden}
.book-cover img,.series-cover img{width:100%;height:auto;object-fit:cover}
.book-title,.series-title{font-size:1rem;padding:10px 10px 2px}
.book-subtitle{font-size:.85rem;color:#6b7280;padding:0 10px}
.book-meta{font-size:.8rem;color:#6b7280;padding:6px 10px 12px}
.series-count{font-size:.85rem;color:#6b7280;padding:0 10px 12px}

.badge{position:absolute;top:8px;left:8px;font-size:.7rem;padding:3px 8px;border-radius:999px;color:#fff}
.badge-new{background:#16a34a}
.badge-soon{background:#6b7280}

.preview-banner{background:#fef3c7;color:#92400e;text-align:center;padding:10px;font-size:.9rem;font-weight:600}

.btn-solution{background:#16a34a;color:#fff}
.btn-secondary{background:#e5e7eb;color:#111}
.cta-row{margin:16px 0}
.series-line{margin:6px 0;color:#4b5563}

.stars{color:#f59e0b;letter-spacing:1px}
.reviews-section{margin-top:40px;padding-top:24px;border-top:1px solid #e5e7eb}
.review{padding:14px 0;border-bottom:1px solid #f0f0f0}
.review-head{margin-bottom:4px}
.review-form-toggle{margin-top:16px}
.review-form{max-width:480px;margin-top:12px;display:flex;flex-direction:column;gap:10px}
.review-form label{font-size:.85rem;font-weight:600}
.review-form input,.review-form select,.review-form textarea{padding:8px;border:1px solid #d1d5db;border-radius:var(--radius);font-family:inherit;font-size:.9rem}
.review-msg,.subscribe-msg{font-size:.85rem;margin-top:6px}
.review-msg.success,.subscribe-msg.success{color:#16a34a}
.review-msg.error,.subscribe-msg.error{color:#dc2626}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

.related-books{margin-top:40px}

.footer-subscribe{max-width:280px}
.footer-subscribe-label{font-weight:600;margin-bottom:8px;font-size:.9rem}
.subscribe-form{display:flex;gap:6px}
.subscribe-form input{flex:1;padding:8px 10px;border:1px solid #d1d5db;border-radius:var(--radius);font-size:.85rem}

.newsletter-block .subscribe-form{max-width:400px;margin-top:10px}

.feedback-form{max-width:480px;display:flex;flex-direction:column;gap:12px;margin-top:16px}
.feedback-form label{font-size:.85rem;font-weight:600}
.feedback-form input,.feedback-form textarea{padding:8px;border:1px solid #d1d5db;border-radius:var(--radius);font-family:inherit;font-size:.9rem}

.not-found-actions{display:flex;gap:10px;justify-content:center;margin-top:20px;flex-wrap:wrap}

.category-chip{display:inline-block;padding:8px 14px;border:1px solid #d1d5db;border-radius:999px;text-align:center}

.filters{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.filters input,.filters select{padding:8px;border:1px solid #d1d5db;border-radius:var(--radius)}

.book-detail-grid{display:grid;grid-template-columns:280px 1fr;gap:32px}
.book-detail-cover img{border-radius:var(--radius);border:1px solid #e5e7eb}
.book-meta-row{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.tag{background:#f3f4f6;padding:4px 10px;border-radius:999px;font-size:.8rem}
.description{margin:16px 0;white-space:pre-wrap}
.solution-note{margin-top:16px;padding:12px;background:#fffbeb;border-radius:var(--radius)}

.series-banner img{width:100%;max-height:280px;object-fit:cover}
.series-book-table{width:100%;border-collapse:collapse;margin-top:16px}
.series-book-table th,.series-book-table td{padding:10px;border-bottom:1px solid #e5e7eb;text-align:left}

.solutions-list{list-style:none;margin-top:16px}
.solutions-list li{padding:10px 0;border-bottom:1px solid #e5e7eb}

.promo-banner{background:var(--color-accent);padding:16px 0;text-align:center}
.promo-banner .container{display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap}

.pagination{display:flex;justify-content:center;gap:16px;margin-top:24px;align-items:center}
.empty-state{padding:48px 0;text-align:center;color:#6b7280}
.breadcrumbs{padding:12px 16px;font-size:.85rem;color:#6b7280}
.breadcrumbs a{color:#6b7280}
.muted{color:#6b7280}
.not-found{text-align:center;padding:80px 0}
.not-found h1{font-size:3rem}

.site-footer{border-top:1px solid #e5e7eb;margin-top:48px;padding:32px 0 16px}
.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer-links{display:flex;gap:16px}
.footer-bottom{font-size:.8rem;color:#6b7280;margin-top:16px}

@media (max-width: 720px){
  .book-detail-grid{grid-template-columns:1fr}
  .header-inner{flex-direction:column;align-items:stretch}
  .main-nav{justify-content:center}
  .footer-inner{flex-direction:column}
  .footer-subscribe{max-width:100%}
  .cta-row .btn{width:100%;text-align:center;margin-bottom:8px}
  .amazon-buttons{display:flex;flex-direction:column}
  .amazon-offer {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin: 10px 16px 10px 0;
    }

  .amazon-offer .btn {
    flex: 1 1 auto;
  }
  .amazon-buttons .btn{margin:4px 0}
}

html[data-mode="dark"]{--color-bg:#0f172a;--color-text:#e5e7eb}
html[data-mode="dark"] .book-card,html[data-mode="dark"] .series-card{background:#111827;border-color:#1f2937}
html[data-mode="dark"] .tag,html[data-mode="dark"] .category-chip{background:#1f2937}


/* =========================================================
   ENHANCED BOOKS / SERIES / SOLUTIONS PAGES
   ========================================================= */

.page-hero {
  padding: 70px 20px;
  margin-bottom: 10px;
  text-align: center;
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.12), transparent 35%),
    linear-gradient(135deg, var(--primary, #4f46e5), var(--accent, #7c3aed));
  color: #fff;
}

.page-hero .container {
  max-width: 900px;
}

.page-hero .eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .14em;
  opacity: .85;
}

.page-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.08;
}

.page-hero p {
  max-width: 700px;
  margin: auto;
  font-size: 1.08rem;
  line-height: 1.7;
  opacity: .94;
}

.books-toolbar,
.section-heading,
.solutions-intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.books-toolbar h2,
.section-heading h2,
.solutions-intro h2 {
  margin: 0;
}

.book-filter-panel {
  display: grid;
  grid-template-columns: minmax(220px, 2fr) repeat(3, minmax(150px, 1fr)) auto;
  gap: 14px;
  padding: 20px;
  margin-bottom: 34px;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 18px;
  background: var(--surface, #fff);
  box-shadow: 0 8px 30px rgba(0,0,0,.06);
}

.book-filter-panel label {
  display: block;
  margin-bottom: 7px;
  font-size: .82rem;
  font-weight: 700;
}

.book-filter-panel input,
.book-filter-panel select {
  width: 100%;
  min-height: 44px;
}

.filter-button {
  align-self: end;
  min-height: 44px;
  white-space: nowrap;
}

.enhanced-book-grid,
.enhanced-series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); /* slightly wider min size */
  gap: 1.5rem;
  align-items: start;        /* prevents images from stretching vertically */
  justify-items: center;     /* centers items neatly */
  padding: 1rem;
}

.enhanced-book-grid img,
.enhanced-series-grid img {
  width: 100%;
  height: auto;              /* keeps natural aspect ratio */
  object-fit: cover;         /* fills space without distortion */
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
/* Solutions */

.solution-search {
  margin-bottom: 34px;
}

.solution-search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 850px;
  margin: auto;
  padding: 8px;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 16px;
  background: var(--surface, #fff);
  box-shadow: 0 8px 28px rgba(0,0,0,.06);
}

.solution-search-box input {
  flex: 1;
  min-width: 0;
  border: 0;
  box-shadow: none;
  background: transparent;
}

.solution-search-box input:focus {
  outline: none;
  box-shadow: none;
}

.search-icon {
  padding-left: 10px;
  font-size: 1.35rem;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
}

.solution-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 18px;
  background: var(--surface, #fff);
  box-shadow: 0 8px 28px rgba(0,0,0,.07);
  transition:
    transform .2s ease,
    box-shadow .2s ease;
}

.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 38px rgba(0,0,0,.12);
}

.solution-cover {
  display: block;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #f3f4f6;
}

.solution-cover img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform .3s ease;
}

.solution-card:hover .solution-cover img {
  transform: scale(1.035);
}

.solution-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px;
}

.solution-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 10px;
}

.solution-card h3 {
  margin: 0 0 9px;
  font-size: 1.08rem;
  line-height: 1.35;
}

.solution-card h3 a {
  color: inherit;
  text-decoration: none;
}

.solution-card h3 a:hover {
  text-decoration: underline;
}

.solution-card-body > p {
  margin: 0 0 18px;
  font-size: .9rem;
  line-height: 1.55;
}

.solution-card-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

.solution-card-actions .btn {
  width: 100%;
  text-align: center;
}

.solution-view-book {
  text-align: center;
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
}

.solution-unavailable {
  padding: 10px 0;
  text-align: center;
  font-size: .88rem;
}

.solution-help-box {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 850px;
  margin: 45px auto 0;
  padding: 22px;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 18px;
  background: var(--surface, #fff);
}

.solution-help-box h3 {
  margin: 0 0 5px;
}

.solution-help-box p {
  margin: 0;
  line-height: 1.6;
}

.solution-help-icon {
  display: grid;
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 50%;
  background: var(--primary, #4f46e5);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
}

/* Desktop alignment */

.books-page,
.series-page,
.solutions-page {
  max-width: 100%; /* content width cap */
  margin: 0 auto; /* shorthand for centering */
  padding: 0 1.5rem; /* horizontal breathing room */
  box-sizing: border-box; /* ensures padding doesn’t break layout */
}

/* Tablet */

@media (max-width: 1050px) {
  .book-filter-panel {
    grid-template-columns: repeat(2, 1fr);
  }

  .filter-search {
    grid-column: 1 / -1;
  }

  .filter-button {
    width: 100%;
  }

  .solutions-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Mobile */

@media (max-width: 700px) {
  .page-hero {
    padding: 50px 18px;
  }

  .book-filter-panel {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .filter-search {
    grid-column: auto;
  }

  .solutions-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .solution-card-body {
    padding: 13px;
  }

  .solution-card h3 {
    font-size: .95rem;
  }

  .solution-card-body > p {
    font-size: .82rem;
  }

  .solution-help-box {
    align-items: flex-start;
  }
}

@media (max-width: 430px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .solution-search-box {
    flex-wrap: wrap;
  }

  .solution-search-box input {
    flex-basis: calc(100% - 45px);
  }

  .solution-search-box .btn {
    width: 100%;
  }
}


/* =========================================================
   GLOBAL PAGE EDGE SPACING
   Keeps public content away from the viewport edges
   ========================================================= */

.container {
  width: min(100% - 32px, 1200px);
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
}

.section {
  box-sizing: border-box;
}

/* Prevent wide content from escaping its container */
.container > *,
.container img,
.container table,
.container form {
  max-width: 100%;
  box-sizing: border-box;
}

/* Tables and long content should scroll instead of touching edges */
.series-book-table {
  width: 100%;
  overflow: hidden;
}

/* Better spacing on smaller screens */
@media (max-width: 768px) {
  .container {
    width: min(100% - 24px, 1200px);
  }
}

/* Very small phones */
@media (max-width: 420px) {
  .container {
    width: calc(100% - 20px);
  }
}


/* =========================================================
   BOOK DETAIL / PREVIEW
   ========================================================= */

.book-detail-page {
  background: transparent;
}

.book-detail {
  padding-top: 28px;
}

.book-detail-grid {
  display: grid;
  grid-template-columns: minmax(280px, 400px) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

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

.book-detail-cover {
  width: 100%;
  max-width: 100%;
  border-radius: 18px;
  overflow: hidden;
  background: transparent;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.14);
}

.book-detail-cover img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 18px;
}

.book-detail-info {
  min-width: 0;
}

.book-detail-label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--primary, #2563eb);
  color: #fff;
}

.book-detail-heading h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.book-detail-heading .subtitle {
  margin: 12px 0 0;
  font-size: 1.15rem;
  line-height: 1.6;
}

.book-series-card {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--surface-muted, #f5f7fb);
  border: 1px solid var(--border, #e5e7eb);
}

.book-series-card span {
  color: var(--muted, #64748b);
}

.book-series-card a {
  font-weight: 700;
}

.book-series-card strong {
  margin-left: auto;
  font-size: 0.9rem;
}

.book-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
}

.book-meta-row .tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--surface-muted, #f5f7fb);
  border: 1px solid var(--border, #e5e7eb);
  font-size: 0.86rem;
  font-weight: 600;
}

.book-description-card,
.book-purchase-card {
  margin-top: 22px;
  padding: 22px;
  border-radius: 16px;
  background: var(--surface, #fff);
  border: 1px solid var(--border, #e5e7eb);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

.book-description-card h2,
.book-purchase-card h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.book-description-card p {
  margin: 0;
  line-height: 1.75;
}

.book-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.book-detail-section {
  margin-top: 52px;
}

.related-books-section > h2 {
  margin-bottom: 20px;
}

/* Preview banner */
.preview-banner {
  margin-bottom: 0;
}

/* Prevent buttons from becoming awkwardly narrow */
.book-detail-actions .btn {
  min-height: 44px;
}

/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 800px) {
  .book-detail-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .book-detail-cover-card {
    justify-content: center;
  }

  .book-detail-cover {
    max-width: 100%;
    max-height: 100%;
  }

  .book-detail-heading h1 {
    font-size: 2rem;
  }

  .book-series-card strong {
    margin-left: 0;
    width: 100%;
  }

  .book-detail-section {
    margin-top: 36px;
  }
}

@media (max-width: 480px) {
  .book-detail {
    padding-top: 18px;
  }

  .book-detail-cover {
    max-width: 100%;
    max-height: 100%;
  }

  .book-description-card,
  .book-purchase-card {
    padding: 17px;
    border-radius: 13px;
  }

  .book-detail-actions {
    flex-direction: column;
  }

  .book-detail-actions .btn {
    width: 100%;
    justify-content: center;
  }
}


/* =========================================================
   SERIES DETAIL / SERIES PREVIEW
   ========================================================= */

.series-detail-page {
  overflow: hidden;
}

.series-detail-hero {
  position: relative;
  width: 100%;
  height: 380px;
  overflow: hidden;
  background: #111827;
}

.series-detail-hero img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  align-self: center;
  overflow: hidden;
}

.series-detail-intro {
  padding: 42px 0 48px;
  background: var(--surface, #ffffff);
}

.series-detail-intro .container {
  max-width: 900px;
}

.series-detail-intro h1 {
  max-width: 850px;
  margin: 12px 0 16px;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text, #111827);
}

.series-detail-intro p {
  max-width: 760px;
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--muted, #64748b);
}



.series-detail-label,
.section-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.series-detail-label {
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--primary, #2563eb);
  color: #fff;
}

.series-detail-heading {
  margin-bottom: 24px;
}

.series-detail-heading h1 {
  margin: 8px 0 10px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.1;
}

.series-detail-heading p {
  max-width: 800px;
  margin: 0;
  line-height: 1.7;
}

.series-detail-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 26px 0 42px;
}

.series-detail-summary > div {
  min-width: 150px;
  padding: 17px 20px;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 14px;
  background: var(--surface, #fff);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
}

.series-detail-summary strong,
.series-detail-summary span {
  display: block;
}

.series-detail-summary strong {
  font-size: 1.25rem;
}

.series-detail-summary span {
  margin-top: 3px;
  color: var(--muted, #64748b);
  font-size: 0.88rem;
}

.series-books-section {
  margin-top: 20px;
}

.series-section-heading {
  margin-bottom: 22px;
}

.series-section-heading h2 {
  margin: 5px 0 0;
  font-size: 1.8rem;
}

.series-books-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.series-book-card {
  min-width: 0;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 18px;
  background: var(--surface, #fff);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.07);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.series-book-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12);
}

.series-book-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  margin: 16px;
  border-radius: 6px;
  background: var(--surface-muted, #f5f7fb);
  width: 180px;
  flex: 0 0 180px;
}

.series-book-cover img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 190px;
  max-height: 360px;
  object-fit: contain;
}

.series-book-number {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.78);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
}

.series-book-content {
  flex: 1 1 auto;
  min-width: 0;
}

.series-book-order {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--primary, #2563eb);
}

.series-book-content h3 {
  margin: 7px 0 0;
  font-size: 1.2rem;
  line-height: 1.3;
}

.series-book-content h3 a {
  text-decoration: none;
}

.series-book-subtitle {
  margin: 8px 0 0;
  color: var(--muted, #64748b);
  line-height: 1.5;
}

.series-book-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.series-book-meta span {
  padding: 5px 8px;
  border-radius: 999px;
  background: var(--surface-muted, #f5f7fb);
  border: 1px solid var(--border, #e5e7eb);
  font-size: 0.75rem;
}

.series-book-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-top: 18px;
}

.series-book-actions .btn {
  min-height: 40px;
}

.series-no-solution {
  font-size: 0.78rem;
}

@media (max-width: 1000px) {
  .series-books-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .series-detail-hero {
    height: auto;
  }

  .series-detail-hero > img {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }

  .series-detail-intro {
    padding: 30px 0 36px;
  }

  .series-detail-intro h1 {
    margin: 10px 0 14px;
    font-size: clamp(1.9rem, 8vw, 2.7rem);
    line-height: 1.08;
  }

  .series-detail-intro p {
    font-size: 0.96rem;
    line-height: 1.55;
  }
}

  .series-books-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .series-book-card {
    display: grid;
    grid-template-columns: 121px minmax(0, 1fr);
    gap: 16px;
  }

  .series-book-cover {
    width: 125px;
    flex-basis: 0 0 125px;
  }
  .series-book-cover img {
    max-width: 125px;
    max-height: 250px;
  }

  .series-book-content {
    padding-top: 0;
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .series-detail-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .series-detail-summary > div {
    min-width: 0;
    padding: 14px;
  }

  .series-book-card {
    grid-template-columns: 105px minmax(0, 1fr);
  }

  .series-book-content h3 {
    font-size: 1rem;
  }

  .series-book-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .series-book-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

.book-detail .cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.book-detail .cta-row > * {
  flex: 0 0 auto;
}

.book-detail .cta-row .btn,
.book-detail .cta-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  width: auto;
  padding: 11px 18px;
  box-sizing: border-box;
  line-height: 1.2;
  white-space: nowrap;
}

.book-detail .cta-row .btn-accent,
.book-detail .cta-row a[href*="/go/solution/"] {
  min-width: 170px;
}

@media (max-width: 700px) {
  .book-detail .cta-row {
    align-items: stretch;
  }

  .book-detail .cta-row .btn,
  .book-detail .cta-row a {
    width: 100%;
  }
}



/* =========================================================
   BOOK CATALOG / SEARCH
   ========================================================= */

.books-page {
  width: 100%;
}

.catalog-header {
  margin-bottom: 28px;
}

.catalog-label {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
}

.catalog-header h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
}

.catalog-intro {
  max-width: 720px;
  margin: 12px 0 0;
  line-height: 1.7;
  opacity: 0.75;
}

/* Filter card */

.books-filter-card {
  width: 100%;
  margin-bottom: 28px;
  padding: 24px;
  border: 1px solid var(--border, #ddd);
  border-radius: 18px;
  background: var(--surface, #fff);
  box-sizing: border-box;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.books-filter-form {
  width: 100%;
}

.books-search-row {
  display: flex;
  align-items: stretch;
  gap: 12px;
}

.books-search-box {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
}

.books-search-box input {
  width: 100%;
  height: 50px;
  padding: 0 48px;
  border: 1px solid var(--border, #d7d7d7);
  border-radius: 12px;
  background: var(--background, #fff);
  color: inherit;
  font: inherit;
  box-sizing: border-box;
  outline: none;
}

.books-search-box input:focus {
  border-color: var(--primary, #555);
  box-shadow: 0 0 0 3px rgba(80, 80, 80, 0.1);
}

.books-search-icon {
  position: absolute;
  left: 17px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.35rem;
  opacity: 0.55;
  pointer-events: none;
}



.books-search-button {
  min-width: 145px;
  height: 50px;
}

/* Divider */

.books-filter-divider {
  height: 1px;
  margin: 22px 0;
  background: var(--border, #e5e5e5);
}

/* Filters */

.books-filter-grid {
  display: grid;
  grid-template-columns:
    minmax(0, 1fr)
    minmax(0, 1fr)
    minmax(0, 1fr)
    auto;
  gap: 16px;
  align-items: end;
}

.books-filter-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.books-filter-field > span {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  opacity: 0.65;
}

.books-filter-field select {
  width: 100%;
  height: 46px;
  padding: 0 38px 0 13px;
  border: 1px solid var(--border, #d7d7d7);
  border-radius: 10px;
  background: var(--background, #fff);
  color: inherit;
  font: inherit;
  box-sizing: border-box;
  cursor: pointer;
}

.books-filter-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 46px;
}

.books-filter-actions .btn {
  white-space: nowrap;
}

.books-clear-filters {
  white-space: nowrap;
  font-size: 0.9rem;
  font-weight: 600;
}

/* Results */

.books-results-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin: 0 0 20px;
  padding: 0 2px;
}

.books-results-count {
  font-size: 0.95rem;
}

.books-results-count strong {
  font-size: 1.05rem;
}

.books-results-range {
  font-size: 0.85rem;
  opacity: 0.65;
}

/* Grid */

.books-catalog-grid {
  align-items: stretch;
}

/* Empty state */

.books-empty-state {
  max-width: 620px;
  margin: 50px auto;
  padding: 48px 28px;
  text-align: center;
  border: 1px solid var(--border, #ddd);
  border-radius: 18px;
  background: var(--surface, #fff);
}

.books-empty-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--background, #f4f4f4);
  font-size: 1.8rem;
}

.books-empty-state h2 {
  margin: 0 0 10px;
}

.books-empty-state p {
  max-width: 460px;
  margin: 0 auto 22px;
  line-height: 1.65;
  opacity: 0.7;
}

/* Tablet */

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

  .books-filter-actions {
    grid-column: 1 / -1;
  }
}

/* Mobile */

@media (max-width: 650px) {
  .books-filter-card {
    padding: 16px;
    border-radius: 14px;
  }

  .books-search-row {
    flex-direction: column;
  }

  .books-search-button {
    width: 100%;
  }

  .books-filter-grid {
    grid-template-columns: 1fr;
  }

  .books-filter-actions {
    grid-column: auto;
    flex-direction: column;
    align-items: stretch;
  }

  .books-filter-actions .btn {
    width: 100%;
  }

  .books-clear-filters {
    text-align: center;
  }

  .books-results-bar {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }
}


/* =========================================================
   SITE HEADER
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: var(--color-bg, #fff);
  border-bottom: 1px solid var(--border, rgba(0, 0, 0, .08));
  box-sizing: border-box;
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 24px;
  position: relative;
}

/* =========================================================
   BRAND / LOGO
   ========================================================= */

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  color: var(--color-text);
  text-decoration: none;
  min-width: 0;
}

.logo {
  display: block;
  width: auto;
  max-width: 180px;
  height: 44px;
  object-fit: contain;
}

/* =========================================================
   COLORFUL BRAND TEXT
   ========================================================= */

.brand-text {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  white-space: nowrap;

  background: linear-gradient(
    135deg,
    var(--color-primary, #1e3a8a),
    var(--color-accent, #f59e0b)
  );

  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;

  transition: transform .2s ease, filter .2s ease;
}

.brand:hover .brand-text {
  transform: translateY(-1px);
  filter: brightness(1.08);
}

@media (max-width: 480px) {
  .brand-text {
    font-size: 1.2rem;
  }
}

/* =========================================================
   DESKTOP NAVIGATION
   ========================================================= */

.header-navigation {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  flex: 1;
  min-width: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
  min-width: 0;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 7px 10px;
  border-radius: 9px;
  color: var(--color-text);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 650;
  white-space: nowrap;
  transition:
    background .2s ease,
    color .2s ease,
    transform .2s ease;
}

.main-nav a:hover {
  background: color-mix(
    in srgb,
    var(--color-primary) 9%,
    transparent
  );
  color: var(--color-primary);
  transform: translateY(-1px);
}

/* =========================================================
   SEARCH
   ========================================================= */

.nav-search {
  position: relative;
  flex: 0 1 230px;
  min-width: 170px;
}

.nav-search input {
  width: 100%;
  height: 42px;
  padding: 0 14px 0 40px;
  border: 1px solid var(--border, #ddd);
  border-radius: 22px;
  background: var(--color-bg, #fff);
  color: var(--color-text);
  font: inherit;
  box-sizing: border-box;
  outline: none;
}

.nav-search input::placeholder {
  color: var(--color-text);
  opacity: .55;
}

.nav-search input:focus {
  border-color: var(--color-primary);
  box-shadow:
    0 0 0 3px color-mix(
      in srgb,
      var(--color-primary) 12%,
      transparent
    );
}

.nav-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.15rem;
  line-height: 1;
  opacity: .55;
  pointer-events: none;
}

/* =========================================================
   MOBILE MENU BUTTON
   ========================================================= */

.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--border, rgba(0, 0, 0, .12));
  border-radius: 10px;
  background: var(--color-bg, #fff);
  cursor: pointer;

  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;

  transition:
    background .2s ease,
    border-color .2s ease,
    transform .2s ease;
}

.mobile-menu-toggle:hover {
  border-color: var(--color-primary);
  background: color-mix(
    in srgb,
    var(--color-primary) 6%,
    var(--color-bg)
  );
}

.mobile-menu-toggle:active {
  transform: scale(.96);
}

.mobile-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition:
    transform .2s ease,
    opacity .2s ease;
}

/* Hamburger → X */

.mobile-menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 1050px) {

  .header-inner {
    gap: 16px;
  }

  .header-navigation {
    gap: 10px;
  }

  .main-nav {
    gap: 0;
  }

  .main-nav a {
    padding-left: 8px;
    padding-right: 8px;
    font-size: .87rem;
  }

  .nav-search {
    flex-basis: 190px;
    min-width: 150px;
  }
}

/* =========================================================
   MOBILE HEADER / MENU
   ========================================================= */

.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  margin-left: auto;
  border: 1px solid var(--border, rgba(0,0,0,.12));
  border-radius: 10px;
  background: var(--color-bg, #fff);
  cursor: pointer;

  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;

  flex-shrink: 0;
}

.mobile-menu-toggle span {
  display: block;
  width: 21px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text, #111827);
  transition:
    transform .2s ease,
    opacity .2s ease;
}

/* Hamburger → X */
.mobile-menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* =========================================================
   MOBILE BREAKPOINT
   ========================================================= */

@media (max-width: 900px) {

  .site-header {
    position: sticky;
    top: 0;
  }

  .header-inner {
    min-height: 64px;
    padding-top: 10px;
    padding-bottom: 10px;
    gap: 12px;
    position: relative;
  }

  .brand {
    min-width: 0;
    max-width: calc(100% - 60px);
  }

  .logo {
    max-width: 145px;
    height: 38px;
  }

  .brand-text {
    font-size: 1.15rem;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  /* Show menu button on mobile */
  .mobile-menu-toggle {
    display: flex;
    margin-left: auto;
    position: relative;
    z-index: 1002;
  }

  /* Hide desktop navigation */
  .header-navigation {
    display: none;
  }

  /* Open mobile navigation */
  .header-navigation.mobile-open {
    display: flex;

    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;

    width: 100%;
    box-sizing: border-box;

    padding: 14px 16px 18px;

    flex-direction: column;
    align-items: stretch;
    gap: 12px;

    background: var(--color-bg, #fff);
    border-bottom: 1px solid var(--border, rgba(0,0,0,.1));

    box-shadow: 0 10px 25px rgba(0,0,0,.10);

    z-index: 1001;
  }

  .header-navigation.mobile-open .main-nav {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .header-navigation.mobile-open .main-nav a {
    width: 100%;
    min-height: 44px;
    padding: 10px 14px;
    box-sizing: border-box;

    justify-content: flex-start;

    border-radius: 9px;
    font-size: .95rem;
  }

  .header-navigation.mobile-open .main-nav a:hover {
    background: color-mix(
      in srgb,
      var(--color-primary) 9%,
      transparent
    );
  }

  /* Search inside mobile menu */
  .header-navigation.mobile-open .nav-search {
    width: 100%;
    min-width: 0;
    flex: none;
  }

  .header-navigation.mobile-open .nav-search input {
    width: 100%;
    height: 44px;
  }
}


/* =========================================================
   SMALL PHONES
   ========================================================= */

@media (max-width: 480px) {

  .header-inner {
    min-height: 58px;
    padding-left: 14px;
    padding-right: 14px;
  }

  .logo {
    max-width: 125px;
    height: 34px;
  }

  .brand-text {
    font-size: 1.05rem;
  }

  .mobile-menu-toggle {
    width: 42px;
    height: 42px;
  }

  .header-navigation.mobile-open {
    padding-left: 12px;
    padding-right: 12px;
  }
}


/* =========================================================
   PREVENT PAGE HORIZONTAL SCROLL
   ========================================================= */

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}



 
    
/* =========================================================
   GRIDMIND STUDIO FOOTER
   ========================================================= */

.site-footer {
  margin-top: 70px;
  background: color-mix(
    in srgb,
    var(--color-primary) 8%,
    var(--color-bg)
  );
  border-top: 1px solid color-mix(
    in srgb,
    var(--color-text) 10%,
    transparent
  );
}

/* Main footer layout */
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 70px;

  width: 100%;
  box-sizing: border-box;

  padding-top: 55px;
  padding-bottom: 50px;

  align-items: start;
}

/* Every column */
.footer-column {
  min-width: 0;
}

/* =========================================================
   BRAND COLUMN
   ========================================================= */

.footer-brand-name {
  display: inline-block;

  margin: 0;

  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;

  text-decoration: none;
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;

  text-decoration: none;
}

.footer-logo {
  display: block;

  width: auto;
  max-width: 180px;
  height: 48px;

  object-fit: contain;
}

.footer-tagline {
  margin: 15px 0 0;

  color: color-mix(
    in srgb,
    var(--color-text) 72%,
    transparent
  );

  line-height: 1.6;
}

.footer-description {
  max-width: 360px;

  margin: 18px 0 0;

  color: color-mix(
    in srgb,
    var(--color-text) 68%,
    transparent
  );

  line-height: 1.7;
}

/* =========================================================
   EXPLORE + INFORMATION
   ========================================================= */

.footer-navigation h3,
.footer-subscribe h3 {
  margin: 0 0 18px;

  color: var(--color-text);

  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
}

.footer-navigation {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-navigation a {
  display: block;

  margin: 0 0 12px;

  color: var(--color-text);

  font-size: 0.98rem;
  font-weight: 600;

  text-decoration: none;

  transition:
    color 0.18s ease,
    transform 0.18s ease;
}

.footer-navigation a:hover {
  color: var(--color-primary);
  transform: translateX(3px);
}

/* =========================================================
   SUBSCRIBE
   ========================================================= */

.footer-subscribe {
  margin-top: 30px;
  max-width: 420px;
}

.footer-subscribe h3 {
  margin-bottom: 8px;
}

.footer-subscribe p {
  margin: 0 0 15px;

  color: color-mix(
    in srgb,
    var(--color-text) 68%,
    transparent
  );

  line-height: 1.55;
}

.footer-subscribe .subscribe-form {
  display: flex;
  align-items: stretch;

  width: 100%;
  gap: 9px;
}

.footer-subscribe input[type="email"] {
  flex: 1;
  min-width: 0;

  box-sizing: border-box;

  padding: 11px 14px;

  border: 1px solid color-mix(
    in srgb,
    var(--color-text) 15%,
    transparent
  );

  border-radius: var(--radius);

  background: var(--color-bg);
  color: var(--color-text);

  font: inherit;
}

.footer-subscribe input[type="email"]:focus {
  outline: 2px solid color-mix(
    in srgb,
    var(--color-primary) 35%,
    transparent
  );

  outline-offset: 1px;
}

.footer-subscribe button {
  flex: 0 0 auto;

  white-space: nowrap;
}

.footer-subscribe .subscribe-msg {
  margin-top: 9px;
  margin-bottom: 0;

  font-size: 0.88rem;
}

/* =========================================================
   BOTTOM BAR
   ========================================================= */

.footer-bottom {
  display: flex;

  align-items: center;
  justify-content: space-between;

  gap: 20px;

  padding-top: 20px;
  padding-bottom: 22px;

  border-top: 1px solid color-mix(
    in srgb,
    var(--color-text) 10%,
    transparent
  );

  color: color-mix(
    in srgb,
    var(--color-text) 58%,
    transparent
  );

  font-size: 0.9rem;
}

.footer-bottom-links {
  display: flex;

  align-items: center;

  gap: 18px;
}

.footer-bottom-links a {
  color: inherit;
  text-decoration: none;
}

.footer-bottom-links a:hover {
  color: var(--color-primary);
}

/* =========================================================
   MOBILE / TABLET
   ========================================================= */

@media (max-width: 850px) {
  .footer-inner {
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 35px;
  }
}

@media (max-width: 700px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 40px 30px;

    padding-top: 42px;
    padding-bottom: 40px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-subscribe {
    max-width: 500px;
  }
}

@media (max-width: 520px) {
  .footer-inner {
    grid-template-columns: 1fr;

    gap: 34px;

    padding-top: 38px;
    padding-bottom: 35px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-navigation {
    width: 100%;
  }

  .footer-subscribe {
    max-width: none;
    margin-top: 25px;
  }

  .footer-subscribe .subscribe-form {
    flex-direction: column;
  }

  .footer-subscribe input[type="email"],
  .footer-subscribe button {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;

    text-align: center;
  }

  .footer-bottom-links {
    justify-content: center;
  }
}








/* =========================================================
   STATIC / ERROR PAGES
   ========================================================= */

.static-page {
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.page-card {
  background: var(--color-bg);
  border: 1px solid color-mix(
    in srgb,
    var(--color-text) 10%,
    transparent
  );
  border-radius: calc(var(--radius) * 1.5);
  padding: clamp(28px, 5vw, 56px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.page-card h1 {
  margin-top: 0;
  margin-bottom: 24px;
}

.page-content {
  line-height: 1.75;
}

.page-content h2,
.page-content h3 {
  margin-top: 32px;
}

.page-content img {
  max-width: 100%;
  height: auto;
}

/* ---------------------------------------------------------
   Error / Not Found
   --------------------------------------------------------- */

.error-page {
  min-height: 58vh;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.error-card {
  width: min(720px, 100%);
  box-sizing: border-box;
  text-align: center;
  padding: clamp(32px, 6vw, 64px) clamp(24px, 5vw, 56px);
  border: 1px solid color-mix(
    in srgb,
    var(--color-text) 10%,
    transparent
  );
  border-radius: calc(var(--radius) * 2);
  background:
    linear-gradient(
      145deg,
      color-mix(
        in srgb,
        var(--color-primary) 5%,
        var(--color-bg)
      ),
      var(--color-bg)
    );
  box-shadow:
    0 18px 55px rgba(0, 0, 0, 0.08),
    0 2px 8px rgba(0, 0, 0, 0.04);
}

.error-icon {
  width: 78px;
  height: 78px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: color-mix(
    in srgb,
    var(--color-primary) 10%,
    var(--color-bg)
  );
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  border: 1px solid color-mix(
    in srgb,
    var(--color-primary) 18%,
    transparent
  );
}

.error-eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.error-card h1 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.12;
}

.error-message {
  max-width: 580px;
  margin: 18px auto 0;
  color: color-mix(
    in srgb,
    var(--color-text) 72%,
    transparent
  );
  font-size: 1.05rem;
  line-height: 1.7;
}

.error-actions {
  margin-top: 32px;
}

.error-actions .not-found-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

/* If notFoundLinks() returns a plain group without
   .not-found-links, these rules still keep common links neat. */
.error-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 18px;
  box-sizing: border-box;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  border: 1px solid color-mix(
    in srgb,
    var(--color-primary) 20%,
    transparent
  );
  color: var(--color-primary);
  background: color-mix(
    in srgb,
    var(--color-primary) 5%,
    var(--color-bg)
  );
  transition:
    transform 0.18s ease,
    background 0.18s ease,
    border-color 0.18s ease;
}

.error-actions a:hover {
  transform: translateY(-2px);
  background: color-mix(
    in srgb,
    var(--color-primary) 10%,
    var(--color-bg)
  );
  border-color: color-mix(
    in srgb,
    var(--color-primary) 35%,
    transparent
  );
}

/* ---------------------------------------------------------
   Mobile
   --------------------------------------------------------- */

@media (max-width: 640px) {
  .error-page {
    min-height: 52vh;
    padding-left: 12px;
    padding-right: 12px;
  }

  .error-card {
    padding: 32px 20px;
    border-radius: calc(var(--radius) * 1.5);
  }

  .error-icon {
    width: 68px;
    height: 68px;
    font-size: 28px;
  }

  .error-card h1 {
    font-size: 2rem;
  }

  .error-message {
    font-size: 0.98rem;
  }

  .error-actions a {
    width: 100%;
  }

  .page-card {
    padding: 26px 20px;
  }
}




/* =========================================================
   UNSUBSCRIBE PAGE
   ========================================================= */

.unsubscribe-page {
  min-height: 58vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.unsubscribe-card {
  width: min(620px, 100%);
  box-sizing: border-box;
  padding: clamp(32px, 6vw, 58px);
  text-align: center;
  background: var(--color-bg);
  border: 1px solid color-mix(
    in srgb,
    var(--color-text) 10%,
    transparent
  );
  border-radius: calc(var(--radius) * 2);
  box-shadow: 0 18px 55px rgba(0, 0, 0, .08);
}

.unsubscribe-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 30px;
  font-weight: 800;
  color: var(--color-primary);
  background: color-mix(
    in srgb,
    var(--color-primary) 9%,
    var(--color-bg)
  );
}

.unsubscribe-icon.success {
  color: #15803d;
  background: #dcfce7;
}

.unsubscribe-icon.error {
  color: #b91c1c;
  background: #fee2e2;
}

.unsubscribe-eyebrow {
  display: block;
  margin-bottom: 12px;
  color: var(--color-accent);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .12em;
}

.unsubscribe-card h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 2.8rem);
}

.unsubscribe-card p {
  max-width: 500px;
  margin: 18px auto 0;
  color: color-mix(
    in srgb,
    var(--color-text) 70%,
    transparent
  );
  line-height: 1.7;
}

.unsubscribe-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.unsubscribe-actions form {
  margin: 0;
}

@media (max-width: 560px) {
  .unsubscribe-card {
    padding: 32px 20px;
  }

  .unsubscribe-actions {
    flex-direction: column;
  }

  .unsubscribe-actions .btn,
  .unsubscribe-actions form,
  .unsubscribe-actions form button {
    width: 100%;
  }
}



/* =========================================================
   MOBILE HEADER — ALWAYS SHOW NAVIGATION
   ========================================================= */

.mobile-menu-toggle {
  display: none !important;
}

@media (max-width: 900px) {

  .header-inner {
    min-height: auto;
    padding: 12px 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .brand {
    width: auto;
    max-width: 100%;
    margin-right: auto;
  }

  .logo {
    max-width: 135px;
    height: 36px;
  }

  .header-navigation,
  .header-navigation.mobile-open {
    display: flex !important;
    position: static;
    width: 100%;
    flex: 1 0 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 0;
    margin: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .main-nav {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 5px;
  }

  .main-nav a {
    min-height: 38px;
    padding: 7px 10px;
    font-size: .88rem;
    justify-content: center;
  }

  .nav-search {
    width: 100%;
    max-width: none;
    flex: none;
    min-width: 0;
  }

  .nav-search input {
    width: 100%;
    height: 42px;
  }
}


/* Smaller phones */
@media (max-width: 480px) {

  .header-inner {
    padding: 10px 12px;
  }

  .logo {
    max-width: 120px;
    height: 32px;
  }

  .main-nav {
    justify-content: center;
    gap: 3px;
  }

  .main-nav a {
    padding: 6px 8px;
    font-size: .82rem;
  }

  .nav-search input {
    height: 40px;
  }
}






/* =========================================================
   BOOK REVIEWS
   ========================================================= */

.reviews-section {
  width: 100%;
  margin-top: 56px;
  padding: 38px;
  border: 1px solid var(--border, rgba(0,0,0,.08));
  border-radius: 22px;
  background:
    linear-gradient(
      145deg,
      color-mix(in srgb, var(--color-primary) 4%, var(--color-bg)),
      var(--color-bg)
    );
  box-sizing: border-box;
}

.reviews-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 30px;
}

.section-eyebrow {
  display: block;
  margin-bottom: 7px;
  color: var(--color-primary);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.reviews-heading h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.15rem);
}

.reviews-subtitle {
  margin: 8px 0 0;
  color: var(--muted, #6b7280);
}

.reviews-summary {
  min-width: 150px;
  padding: 18px 22px;
  text-align: center;
  border-radius: 16px;
  background: var(--color-bg);
  border: 1px solid var(--border, rgba(0,0,0,.08));
  box-shadow: 0 8px 25px rgba(0,0,0,.05);
}

.reviews-average strong {
  font-size: 2rem;
  line-height: 1;
}

.reviews-average span {
  color: var(--muted, #6b7280);
  font-size: .9rem;
}

.reviews-summary-stars {
  margin: 7px 0 3px;
}

.reviews-count {
  color: var(--muted, #6b7280);
  font-size: .82rem;
}

.reviews-list {
  display: grid;
  gap: 14px;
}

.review-card {
  padding: 22px;
  border: 1px solid var(--border, rgba(0,0,0,.08));
  border-radius: 16px;
  background: var(--color-bg);
  transition:
    transform .2s ease,
    box-shadow .2s ease,
    border-color .2s ease;
}

.review-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(
    in srgb,
    var(--color-primary) 25%,
    var(--border, #ddd)
  );
  box-shadow: 0 10px 28px rgba(0,0,0,.07);
}

.review-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.review-avatar {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #fff;
  font-weight: 800;
}

.review-author strong {
  display: block;
}

.review-date {
  display: block;
  margin-top: 3px;
  color: var(--muted, #6b7280);
  font-size: .78rem;
}

.review-rating {
  white-space: nowrap;
}

.review-text {
  margin: 17px 0 0;
  color: var(--color-text);
  line-height: 1.7;
}

.reviews-empty {
  padding: 38px 20px;
  text-align: center;
  border: 1px dashed var(--border, #d1d5db);
  border-radius: 16px;
  background: color-mix(
    in srgb,
    var(--color-primary) 3%,
    var(--color-bg)
  );
}

.reviews-empty-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: color-mix(
    in srgb,
    var(--color-accent) 15%,
    var(--color-bg)
  );
  color: var(--color-accent);
  font-size: 1.3rem;
}

.reviews-empty h3 {
  margin: 0;
}

.reviews-empty p {
  margin: 7px 0 0;
  color: var(--muted, #6b7280);
}


/* Write review */

.review-write-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  margin-top: 24px;
  padding: 24px;
  border-radius: 18px;
  background: color-mix(
    in srgb,
    var(--color-primary) 6%,
    var(--color-bg)
  );
  border: 1px solid color-mix(
    in srgb,
    var(--color-primary) 12%,
    var(--border, #ddd)
  );
}

.review-write-card h3 {
  margin: 0;
  font-size: 1.25rem;
}

.review-write-card p {
  margin: 5px 0 0;
  color: var(--muted, #6b7280);
}

.review-form-toggle {
  flex: 0 0 auto;
}

.review-form-toggle summary {
  cursor: pointer;
  list-style: none;
}

.review-form-toggle summary::-webkit-details-marker {
  display: none;
}

.review-form {
  width: 100%;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border, rgba(0,0,0,.08));
}

.review-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.review-form label {
  display: block;
  margin-bottom: 16px;
}

.review-form label > span {
  display: block;
  margin-bottom: 7px;
  font-size: .88rem;
  font-weight: 700;
}

.review-form label small {
  color: var(--muted, #6b7280);
  font-weight: 400;
}

.review-form input,
.review-form select,
.review-form textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 10px;
  background: var(--color-bg);
  color: var(--color-text);
  padding: 11px 13px;
  font: inherit;
  outline: none;
}

.review-form textarea {
  resize: vertical;
  min-height: 120px;
}

.review-form input:focus,
.review-form select:focus,
.review-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(
    in srgb,
    var(--color-primary) 12%,
    transparent
  );
}

.review-form-footer {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.review-msg {
  margin: 0;
  color: var(--muted, #6b7280);
}


/* Mobile */

@media (max-width: 700px) {

  .reviews-section {
    padding: 24px 18px;
    border-radius: 16px;
  }

  .reviews-heading {
    align-items: stretch;
    flex-direction: column;
    gap: 18px;
  }

  .reviews-summary {
    width: 100%;
    box-sizing: border-box;
  }

  .review-card-top {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .review-write-card {
    align-items: stretch;
    flex-direction: column;
  }

  .review-form-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .review-write-card .review-form-toggle {
    width: 100%;
  }

  .review-write-card .review-form-toggle > summary {
    width: 100%;
    box-sizing: border-box;
    text-align: center;
  }
}




/* =========================================================
   ABOUT & CONTACT — MOBILE LAYOUT FIX
   ========================================================= */

@media (max-width: 700px) {

  /* About page content */
  .prose {
    width: min(100% - 24px, 900px);
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
  }

  /* Any grid inside About/Contact content */
  .prose [style*="grid"],
  .prose .grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 20px !important;
    width: 100% !important;
    box-sizing: border-box;
  }

  /* Prevent flex layouts from squeezing cards */
  .prose [style*="display:flex"] {
    flex-direction: column !important;
    width: 100% !important;
    gap: 20px !important;
    box-sizing: border-box;
  }

  /* Cards inside About/Contact */
  .prose [class*="card"],
  .prose [class*="feature"] {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    box-sizing: border-box;
  }

  /* Stop headings from breaking one word per line */
  .prose h1,
  .prose h2,
  .prose h3,
  .prose h4 {
    word-break: normal !important;
    overflow-wrap: normal !important;
    white-space: normal !important;
  }

  .prose p {
    word-break: normal !important;
    overflow-wrap: break-word !important;
    white-space: normal !important;
  }

  /* Images */
  .prose img {
    max-width: 100% !important;
    height: auto;
  }

  /* Forms */
  .prose form {
    width: 100%;
    box-sizing: border-box;
  }

  .prose input,
  .prose textarea,
  .prose select {
    max-width: 100%;
    box-sizing: border-box;
  }
}



/* =========================================================
   ABOUT & CONTACT — REMOVE EXTRA TOP SPACE
   ========================================================= */

.static-designed-page {
  padding-top: 0 !important;
  margin-top: 0 !important;
}

.static-designed-page > div {
  margin-top: 0 !important;
}

/* =========================================================
   SEARCH — USE ONLY THE NATIVE CLEAR BUTTON
   ========================================================= */

.nav-search input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: auto;
  appearance: auto;
  cursor: pointer;
}

/* Hide any custom clear button if one is being generated */
.nav-search .search-clear,
.nav-search .clear-search,
.nav-search .search-clear-btn {
  display: none !important;
}