/* 
  Pack Livros - Landing Page Style Guide & CSS System
  Design Pattern: Parchment, Cream and Gold Theme (alternating dark/light sections)
  Fonts: Fraunces (Serif) & Hanken Grotesk (Sans-serif)
*/

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;0,9..144,900;1,9..144,500&family=Hanken+Grotesk:wght@400;500;600;700;800&display=swap');

/* --- Design Tokens --- */
:root {
  --font-heading: 'Fraunces', Georgia, serif;
  --font-body: 'Hanken Grotesk', system-ui, sans-serif;

  /* Colors */
  --ink: #1a1410;            /* Warm ink black */
  --ink-2: #2a2118;
  --parchment: #f5eee1;      /* Light parchment / background 2 */
  --cream: #fbf7ef;          /* Very light cream / background 1 */
  --gold: #c8962b;           /* Classic gold */
  --gold-bright: #e8b53d;    /* Bright gold for CTAs */
  --oxblood: #7c2d2d;        /* Accent wine/crimson */
  --muted: #7a6f60;
  --line: rgba(26, 20, 16, 0.14);
  
  --primary: var(--gold-bright);
  --primary-hover: var(--gold);
  --success: #2e7d32;
  
  /* Layout & Shadows */
  --max-width: 1120px;
  --max-width-narrow: 760px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 4px 10px rgba(26, 20, 16, 0.05);
  --shadow-md: 0 12px 28px -10px rgba(26, 20, 16, 0.15);
  --shadow-lg: 0 24px 60px -24px rgba(26, 20, 16, 0.45);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base Resets --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  font-size: 18px;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .price-amount, .price-title {
  font-family: var(--font-heading);
  line-height: 1.05;
  letter-spacing: -0.015em;
  font-weight: 700;
  color: var(--ink);
}

a {
  color: inherit;
  transition: var(--transition-fast);
}

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 22px;
  padding-right: 22px;
}

.container-narrow {
  width: 100%;
  max-width: var(--max-width-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 22px;
  padding-right: 22px;
}

.text-center { text-align: center; }
.text-gradient {
  color: var(--gold-bright);
}
.accent-color { color: var(--gold); }
.success-color { color: var(--success); }

/* --- Top Announcement Bar --- */
.announcement-bar {
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.86rem;
  text-align: center;
  padding: 10px 16px;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 100;
}

.announcement-bar b {
  color: var(--gold-bright);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 56px;
  padding: 18px 34px;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 60px;
  border: none;
  cursor: pointer;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  color: #241a08 !important;
  box-shadow: 0 14px 30px -10px rgba(200, 150, 43, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
  text-align: center;
  line-height: 1.1;
  position: relative;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.04);
  box-shadow: 0 20px 40px -10px rgba(200, 150, 43, 0.8);
  color: #241a08 !important;
}

.btn:active {
  transform: translateY(0);
}

.btn-pulse {
  animation: pulse-button 2.4s ease-in-out infinite;
}

/* --- Hero Section (Dark Section) --- */
.hero {
  position: relative;
  background-color: var(--ink);
  background-image: radial-gradient(120% 90% at 78% -10%, rgba(200, 150, 43, 0.16), transparent 60%),
                    radial-gradient(90% 80% at 0% 110%, rgba(124, 45, 45, 0.18), transparent 55%);
  color: var(--cream);
  padding: 80px 0 100px 0;
  overflow: hidden;
}

.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.04'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.2vw, 4.05rem);
  font-weight: 900;
  margin-bottom: 24px;
  color: var(--cream);
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-bright);
  border: 1px solid rgba(232, 181, 61, 0.4);
  padding: 7px 14px;
  border-radius: 50px;
  margin-bottom: 22px;
  background: rgba(232, 181, 61, 0.1);
}

.hero-sub {
  font-size: 1.18rem;
  color: rgba(251, 247, 239, 0.82);
  max-width: 680px;
  margin: 0 auto 40px auto;
  line-height: 1.6;
}

.hero-cta-wrapper {
  max-width: 520px;
  margin: 0 auto 24px auto;
}

.hero-guarantees {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: rgba(251, 247, 239, 0.7);
  font-size: 0.84rem;
  font-weight: 500;
}

.hero-guarantees span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-guarantees span::before {
  content: '✓';
  color: var(--gold-bright);
  font-weight: 700;
}

/* --- Vitrine / Showcase Grid (Light Section - Cream) --- */
.books-showcase {
  padding: 84px 0;
  background-color: var(--cream);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  text-align: center;
  margin-bottom: 14px;
  display: block;
}

.section-title {
  font-size: clamp(1.9rem, 3.8vw, 2.9rem);
  font-weight: 700;
  text-align: center;
  max-width: 760px;
  margin: 0 auto 16px auto;
  color: var(--ink);
}

.section-desc {
  text-align: center;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 50px auto;
  font-size: 1.08rem;
}

/* Book Grid Responsivo */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 40px 24px;
  margin-bottom: 56px;
}

/* 3D CSS Book Mockup Card */
.book-card {
  perspective: 1000px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: inherit;
  transition: var(--transition-normal);
}

.book-spine-container {
  position: relative;
  width: 140px;
  height: 200px;
  transform-style: preserve-3d;
  transition: transform var(--transition-slow);
  box-shadow: 5px 15px 30px rgba(26, 20, 16, 0.3);
  border-radius: 2px 8px 8px 2px;
}

.book-cover-3d {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 2px 8px 8px 2px;
  background-size: cover;
  background-position: center;
  transform: translateZ(12px);
  z-index: 2;
  box-shadow: inset -3px 0 10px rgba(0,0,0,0.2);
}

/* Fallback Cover */
.fallback-cover {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  text-align: left;
}

.fallback-badge {
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--gold-bright);
  background: rgba(255, 255, 255, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  align-self: flex-start;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.fallback-title {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  margin-top: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.fallback-author {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  margin-top: auto;
}

/* 3D Spine and Pages */
.book-spine-3d {
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 100%;
  background: #111;
  transform: rotateY(-90deg) translateZ(12px);
  transform-origin: left;
  z-index: 1;
}

.book-pages-3d {
  position: absolute;
  top: 3px;
  right: 0;
  width: 24px;
  height: 194px;
  background: #eaeaea;
  transform: rotateY(90deg) translateZ(-128px);
  transform-origin: right;
  z-index: 0;
  box-shadow: inset 5px 0 10px rgba(0,0,0,0.1);
  background-image: linear-gradient(to right, #ccc 1px, transparent 1px);
  background-size: 3px 100%;
}

.book-card:hover .book-spine-container {
  transform: rotateY(-20deg) rotateX(10deg) scale(1.05);
  box-shadow: 12px 20px 40px rgba(26, 20, 16, 0.45);
}

.book-info-bottom {
  margin-top: 16px;
  text-align: center;
  max-width: 140px;
}

.book-title-bottom {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 140px;
}

.book-author-bottom {
  font-size: 0.78rem;
  color: var(--muted);
}

/* --- PAS: Problem Section (Light Section - Parchment) --- */
.problem-section {
  padding: 84px 0;
  background-color: var(--parchment);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.problem-intro h3 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--ink);
}

.problem-intro p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.pain-points-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pain-item {
  background: var(--cream);
  border: 1px solid var(--line);
  padding: 24px;
  border-radius: var(--radius-md);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.pain-item:hover {
  border-color: rgba(200, 150, 43, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pain-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(200, 150, 43, 0.1);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.pain-text h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.pain-text p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.4;
}

/* --- Solution Section (Dark Section - Ink) --- */
.solution-section {
  padding: 84px 0;
  background-color: var(--ink);
  color: var(--cream);
}

.solution-section .section-title {
  color: var(--cream);
}

.solution-section .section-desc {
  color: rgba(251, 247, 239, 0.72);
}

.solution-section .section-tag {
  color: var(--gold-bright);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

@media (max-width: 900px) {
  .solution-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.solution-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(232, 181, 61, 0.3);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition-normal);
}

.solution-card:hover {
  transform: translateY(-5px);
  border-color: var(--gold-bright);
  background: rgba(255, 255, 255, 0.06);
}

.solution-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  color: #241a08;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.3rem;
}

.solution-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--cream);
}

.solution-card p {
  font-size: 0.94rem;
  color: rgba(251, 247, 239, 0.72);
  line-height: 1.5;
}

/* --- Categories Section (Light Section - Cream) --- */
.categories-section {
  padding: 84px 0;
  background-color: var(--cream);
  border-bottom: 1px solid var(--line);
}

.category-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 40px;
}

@media (max-width: 768px) {
  .category-tabs {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .category-tabs {
    grid-template-columns: 1fr;
  }
}

.category-tab-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  background: var(--parchment);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-align: left;
}

.category-tab-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.cat-num {
  font-family: var(--font-heading);
  font-weight: 900;
  color: var(--gold);
  font-size: 1.6rem;
  margin-bottom: 12px;
  display: block;
}

.category-tab-card h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.category-tab-card p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.4;
}

/* --- Bonus Section (Dark Section - Ink) --- */
.bonus-section {
  padding: 84px 0;
  background-color: var(--ink);
  color: var(--cream);
}

.bonus-section .section-title {
  color: var(--cream);
}

.bonus-section .section-desc {
  color: rgba(251, 247, 239, 0.72);
}

.bonus-section .section-tag {
  color: var(--gold-bright);
}

.bonus-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

@media (max-width: 768px) {
  .bonus-wrapper {
    grid-template-columns: 1fr;
  }
}

.bonus-card {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(232, 181, 61, 0.3);
  border-radius: var(--radius-md);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-normal);
}

.bonus-card:hover {
  border-color: var(--gold-bright);
  transform: translateY(-4px);
}

.bonus-badge {
  position: absolute;
  top: -12px;
  left: 22px;
  background: var(--gold-bright);
  color: #241a08;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 30px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.bonus-content h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 12px;
  margin-top: 8px;
}

.bonus-content p {
  color: rgba(251, 247, 239, 0.72);
  font-size: 0.94rem;
  margin-bottom: 24px;
}

.bonus-value {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gold-bright);
  margin-top: 14px;
}

/* --- Offer & Pricing Section (Light Section - Parchment) --- */
.offer-section {
  padding: 84px 0;
  background-color: var(--parchment);
  position: relative;
}

.pricing-box {
  max-width: 620px;
  margin: 0 auto;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  padding: 0;
}

.pricing-box::before {
  content: "MELHOR OFERTA";
  display: block;
  background: var(--ink);
  color: var(--cream);
  padding: 16px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  text-align: center;
  border-bottom: 3px solid var(--gold);
}

/* Adapt header variables to styling nested layout */
.pricing-badge {
  display: none; /* replaced by block title */
}

.price-title {
  padding: 32px 32px 12px 32px;
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
}

.pricing-box .original-price {
  color: var(--muted);
  text-decoration: line-through;
  font-size: 1.1rem;
  display: block;
  text-align: center;
}

.current-price-wrap {
  text-align: center;
  margin: 8px 0;
}

.price-currency {
  font-size: 1.3rem;
  font-weight: 500;
  vertical-align: super;
  color: var(--ink);
}

.price-amount {
  font-size: 3.6rem;
  font-weight: 700;
  color: var(--ink);
}

.price-cent {
  font-size: 1.3rem;
  font-weight: 500;
  vertical-align: super;
  color: var(--ink);
}

.price-info {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
  display: block;
}

.features-bullet {
  list-style: none;
  text-align: left;
  max-width: 420px;
  margin: 0 auto 26px auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0 32px;
}

.feature-bullet-item {
  display: flex;
  justify-content: flex-start;
  gap: 12px;
  font-size: 0.96rem;
  color: var(--ink);
  border-bottom: 1px dashed var(--line);
  padding-bottom: 8px;
}

.feature-bullet-icon {
  color: var(--gold);
  font-weight: 800;
}

#btn-pricing-cta {
  width: calc(100% - 64px);
  max-width: 420px;
  margin: 12px auto 24px auto;
  display: flex;
}

.payment-methods {
  padding: 0 32px 32px 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.payment-badge-svg {
  height: 20px;
  opacity: 0.6;
  filter: grayscale(1);
}

/* --- Countdown Timer Styles --- */
.countdown {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 22px 0;
  padding: 0 32px;
}

.cd {
  background: var(--ink);
  color: var(--cream);
  border-radius: 10px;
  padding: 10px 14px;
  min-width: 58px;
  text-align: center;
}

.cd b {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  display: block;
  line-height: 1;
  color: var(--gold-bright);
}

.cd small {
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
}

/* --- Guarantee Section (Dark Section - Ink) --- */
.guarantee-section {
  padding: 84px 0;
  background-color: var(--ink);
  color: var(--cream);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.guarantee-box {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 40px;
  align-items: center;
  max-width: 880px;
  margin: 0 auto;
}

@media (max-width: 650px) {
  .guarantee-box {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.guarantee-seal-svg {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 3px dashed var(--gold-bright);
  padding: 20px;
  color: var(--gold-bright);
  margin: 0 auto;
}

.guarantee-content h3 {
  font-size: 1.9rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--cream);
}

.guarantee-content p {
  color: rgba(251, 247, 239, 0.78);
  font-size: 1rem;
}

/* --- FAQ Section (Light Section - Parchment) --- */
.faq-section {
  padding: 84px 0;
  background-color: var(--parchment);
}

.faq-list {
  max-width: 760px;
  margin: 40px auto 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-trigger {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-trigger::after {
  content: "+";
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--gold);
  transition: transform 0.2s ease;
}

.faq-item.active .faq-trigger::after {
  content: "−";
  transform: rotate(180deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
  padding: 0 24px;
}

.faq-item.active .faq-content {
  max-height: 300px;
  padding: 0 24px 22px 24px;
}

.faq-content p {
  color: var(--muted);
  font-size: 1rem;
}

/* --- Footer --- */
.main-footer {
  padding: 46px 0;
  background-color: #120d0a;
  color: rgba(251, 247, 239, 0.55);
  font-size: 0.82rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-nav a {
  color: var(--gold-bright);
  text-decoration: none;
}

.footer-nav a:hover {
  text-decoration: underline;
}

.footer-disclaimer {
  max-width: 760px;
  margin: 16px auto 0 auto;
  line-height: 1.7;
}

/* --- Mobile Sticky Bar --- */
.sticky-mobile-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--ink);
  padding: 12px 16px;
  display: none;
  z-index: 999;
  box-shadow: 0 -10px 30px rgba(0,0,0,.3);
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sticky-price-info {
  display: flex;
  flex-direction: column;
}

.sticky-label {
  color: rgba(251, 247, 239, 0.6);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.sticky-price {
  color: var(--gold-bright);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
}

.btn-sticky-mobile {
  min-height: auto;
  padding: 14px 20px;
  font-size: .92rem;
  width: auto;
  border-radius: 40px;
}

@media (max-width: 560px) {
  .sticky-mobile-bar {
    display: flex;
  }
  body {
    padding-bottom: 76px;
  }
}

/* --- Animations --- */
@keyframes pulse-button {
  0%, 100% {
    box-shadow: 0 14px 30px -10px rgba(200, 150, 43, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.5);
  }
  50% {
    box-shadow: 0 14px 44px -6px rgba(200, 150, 43, 0.95), inset 0 1px 0 rgba(255, 255, 255, 0.5);
  }
}

/* --- Transformations Section --- */
.transformations-section {
  padding: 84px 0;
  background-color: var(--cream);
  border-bottom: 1px solid var(--line);
}
.trans-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 40px;
}
@media (max-width: 1024px) {
  .trans-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 768px) {
  .trans-grid {
    grid-template-columns: 1fr;
  }
}
.trans-card {
  background: var(--parchment);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-align: left;
}
.trans-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.trans-card .n {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--gold);
  margin-bottom: 8px;
  display: block;
}
.trans-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.trans-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

/* --- Qualification Section --- */
.qualification-section {
  padding: 84px 0;
  background-color: var(--parchment);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.qual-grid {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 800px;
  margin: 40px auto 0 auto;
  gap: 16px;
}
.qual-item {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}
.qual-item:hover {
  border-color: rgba(200, 150, 43, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.qual-icon {
  width: 28px;
  height: 28px;
  background: rgba(200, 150, 43, 0.1);
  color: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  flex-shrink: 0;
}
.qual-text {
  font-size: 0.98rem;
  color: var(--ink);
  line-height: 1.4;
  font-weight: 500;
}

/* --- Social Proof Section --- */
.social-proof-section {
  padding: 84px 0;
  background-color: var(--cream);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}
@media (max-width: 1024px) {
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .proof-grid {
    grid-template-columns: 1fr;
  }
}
.proof-card {
  background: var(--parchment);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform 0.25s ease;
}
.proof-card:hover {
  transform: scale(1.03);
}
.proof-card img {
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-md) - 6px);
  display: block;
}

/* --- Footer CTA Section --- */
.footer-cta-section {
  padding: 84px 0;
  background-color: var(--parchment);
  text-align: center;
  border-top: 1px solid var(--line);
}
.footer-cta-box {
  background: var(--ink);
  color: var(--cream);
  max-width: 800px;
  margin: 0 auto;
  padding: 48px;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(232, 181, 61, 0.3);
  box-shadow: var(--shadow-lg);
}
.footer-cta-box h3 {
  font-size: 2rem;
  color: var(--cream);
  margin-bottom: 12px;
}
.footer-cta-box p {
  color: rgba(251, 247, 239, 0.72);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 32px auto;
  line-height: 1.5;
}
.footer-cta-box .btn {
  max-width: 420px;
  margin: 0 auto;
  display: flex;
}
.footer-cta-guarantees {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  gap: 16px;
  font-size: 0.82rem;
  color: rgba(251, 247, 239, 0.6);
  flex-wrap: wrap;
}
.footer-cta-guarantees span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-cta-guarantees span::before {
  content: '✓';
  color: var(--gold-bright);
}

/* --- Mobile/Tablet Responsive Book Slider --- */
@media (max-width: 768px) {
  .books-showcase .book-grid {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    gap: 20px;
    padding: 24px 20px;
    margin-bottom: 24px;
    justify-content: flex-start;
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
  }
  
  .books-showcase .book-grid::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
  }
  
  .books-showcase .book-card {
    flex: 0 0 140px;
    scroll-snap-align: start;
  }
  
  .books-showcase .book-info-bottom {
    max-width: 140px;
  }
  
  .books-showcase .book-title-bottom {
    width: 140px;
  }
}