/* ========================================
   O Poder das Palavras - Landing Page
   Estilos Profissionais
======================================== */

/* CSS Variables - Paleta de cores inspirada na capa */
:root {
  --primary-blue: #4a90a4;
  --primary-blue-dark: #2d6a7a;
  --primary-blue-light: #a8d4e6;
  --accent-gold: #d4a574;
  --accent-gold-light: #f5e6d3;
  --accent-pink: #e8b4b8;
  --accent-pink-light: #fdf0f2;
  --text-dark: #2c3e50;
  --text-medium: #5a6c7d;
  --text-light: #8a9bab;
  --white: #ffffff;
  --off-white: #fafbfc;
  --gradient-sky: linear-gradient(180deg, #1e3a5f 0%, #4a90a4 30%, #a8d4e6 60%, #f5d6e0 85%, #fdf0f2 100%);
  --gradient-cta: linear-gradient(135deg, #d4a574 0%, #c4956a 50%, #b88560 100%);
  --gradient-cta-hover: linear-gradient(135deg, #c4956a 0%, #b48560 50%, #a47550 100%);
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-strong: 0 15px 50px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(212, 165, 116, 0.4);
  --border-radius: 12px;
  --border-radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.7;
  color: var(--text-dark);
  background-color: var(--white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-dark);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.4rem, 3vw, 1.8rem); }
h4 { font-size: clamp(1.2rem, 2.5vw, 1.4rem); }

p {
  font-size: 1.1rem;
  color: var(--text-medium);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 45px;
  font-family: 'Nunito', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-cta);
  color: var(--white);
  box-shadow: var(--shadow-medium), var(--shadow-glow);
}

.btn-primary:hover {
  background: var(--gradient-cta-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-strong), 0 0 60px rgba(212, 165, 116, 0.5);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
  background: var(--primary-blue);
  color: var(--white);
}

/* ========================================
   HERO SECTION
======================================== */
.hero {
  min-height: 100vh;
  background: var(--gradient-sky);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(2px 2px at 10% 10%, rgba(255,255,255,0.8) 50%, transparent 50%),
    radial-gradient(2px 2px at 30% 25%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(3px 3px at 50% 15%, rgba(255,255,255,0.9) 50%, transparent 50%),
    radial-gradient(2px 2px at 70% 30%, rgba(255,255,255,0.7) 50%, transparent 50%),
    radial-gradient(2px 2px at 85% 20%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(3px 3px at 15% 40%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(2px 2px at 90% 45%, rgba(255,255,255,0.8) 50%, transparent 50%);
  animation: twinkle 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
  padding: 100px 0;
}

.hero-text {
  color: var(--white);
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 25px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
  color: var(--white);
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-title span {
  color: var(--accent-gold-light);
  display: block;
}

.hero-subtitle {
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 30px;
  font-weight: 300;
  line-height: 1.8;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 40px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 0.95rem;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-feature i {
  color: var(--accent-gold-light);
}

.hero-price-box {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius);
  padding: 20px 30px;
  margin-bottom: 25px;
  display: inline-block;
}

.hero-price-box .old-price {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: line-through;
  display: block;
  margin-bottom: 5px;
}

.hero-price-box .price-highlight {
  display: flex;
  align-items: baseline;
  gap: 2px;
  color: var(--white);
  line-height: 1;
}

.hero-price-box .currency {
  font-size: 1.5rem;
  font-weight: 700;
}

.hero-price-box .value {
  font-size: 3.5rem;
  font-weight: 800;
  font-family: 'Playfair Display', serif;
}

.hero-price-box .cents {
  font-size: 1.5rem;
  font-weight: 700;
}

.hero-price-box .installments {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  display: block;
  margin-top: 5px;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 15px;
  align-items: flex-start;
}

.cta-guarantee {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
}

.cta-guarantee i {
  color: var(--accent-gold-light);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.book-wrapper {
  position: relative;
  transform: perspective(1000px) rotateY(-5deg);
  transition: var(--transition);
}

.book-wrapper:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.book-cover {
  max-width: 380px;
  border-radius: 8px;
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1);
}

.book-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(circle, rgba(212, 165, 116, 0.3) 0%, transparent 70%);
  pointer-events: none;
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.1); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--white);
  opacity: 0.7;
  animation: bounce 2s infinite;
  z-index: 10;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========================================
   PAIN POINTS SECTION
======================================== */
.pain-points {
  padding: 100px 0;
  background: var(--off-white);
  position: relative;
}

.pain-points::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(180deg, var(--accent-pink-light) 0%, var(--off-white) 100%);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
  position: relative;
  z-index: 2;
}

.section-tag {
  display: inline-block;
  background: var(--accent-gold-light);
  color: var(--accent-gold);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 15px;
}

.section-title {
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-medium);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  position: relative;
  z-index: 2;
}

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

.pain-card {
  background: var(--white);
  padding: 35px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.pain-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.pain-icon {
  width: 60px;
  height: 60px;
  background: var(--accent-pink-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.pain-icon i {
  font-size: 1.5rem;
  color: var(--accent-pink);
}

.pain-card h4 {
  margin-bottom: 12px;
  color: var(--text-dark);
}

.pain-card p {
  font-size: 1rem;
  line-height: 1.7;
}

/* ========================================
   SOLUTION SECTION
======================================== */
.solution {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary-blue-dark) 0%, var(--primary-blue) 100%);
  position: relative;
  overflow: hidden;
}

.solution::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

.solution .section-header {
  color: var(--white);
}

.solution .section-tag {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
}

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

.solution .section-subtitle {
  color: rgba(255, 255, 255, 0.85);
}

.solution-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.solution-image {
  position: relative;
}

.solution-image img {
  max-width: 350px;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: var(--shadow-strong);
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.solution-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 25px;
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: var(--transition);
}

.solution-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(10px);
}

.solution-number {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: var(--accent-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
}

.solution-text h4 {
  color: var(--white);
  margin-bottom: 8px;
}

.solution-text p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

/* ========================================
   BENEFITS SECTION
======================================== */
.benefits {
  padding: 100px 0;
  background: var(--white);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

@media (max-width: 992px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }
}

.benefit-card {
  text-align: center;
  padding: 40px 30px;
  border-radius: var(--border-radius-lg);
  background: linear-gradient(145deg, var(--off-white) 0%, var(--white) 100%);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-cta);
  transform: scaleX(0);
  transition: var(--transition);
}

.benefit-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
}

.benefit-card:hover::before {
  transform: scaleX(1);
}

.benefit-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  box-shadow: 0 10px 30px rgba(74, 144, 164, 0.3);
}

.benefit-icon i {
  font-size: 2rem;
  color: var(--white);
}

.benefit-card h4 {
  margin-bottom: 15px;
}

.benefit-card p {
  font-size: 0.95rem;
}

/* ========================================
   INSIDE BOOK SECTION
======================================== */
.inside-book {
  padding: 100px 0;
  background: var(--off-white);
}

.inside-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

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

.inside-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  border-left: 4px solid var(--primary-blue);
}

.inside-card:hover {
  box-shadow: var(--shadow-medium);
  border-left-color: var(--accent-gold);
}

.inside-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: var(--accent-gold-light);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.inside-icon i {
  font-size: 1.3rem;
  color: var(--accent-gold);
}

.inside-text h4 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.inside-text p {
  font-size: 0.95rem;
}

/* ========================================
   TESTIMONIALS SECTION
======================================== */
.testimonials {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--white) 0%, var(--accent-pink-light) 100%);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

@media (max-width: 992px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

.testimonial-card {
  background: var(--white);
  padding: 35px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  position: relative;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.testimonial-quote {
  font-size: 3rem;
  color: var(--primary-blue-light);
  line-height: 1;
  margin-bottom: 15px;
}

.testimonial-text {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-medium);
  margin-bottom: 25px;
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 15px;
}

.author-avatar {
  width: 55px;
  height: 55px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
}

.author-info h5 {
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 3px;
}

.author-info span {
  font-size: 0.85rem;
  color: var(--text-light);
}

.testimonial-stars {
  color: var(--accent-gold);
  margin-top: 15px;
}

/* ========================================
   AUTHOR SECTION
======================================== */
.author {
  padding: 100px 0;
  background: var(--white);
}

.author-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 60px;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
}

.author-image {
  position: relative;
}

.author-photo {
  width: 280px;
  height: 280px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  box-shadow: var(--shadow-medium);
  position: relative;
  overflow: hidden;
}

.author-photo::before {
  content: '';
  position: absolute;
  inset: 5px;
  border: 3px solid var(--accent-gold);
  border-radius: 50%;
  z-index: 2;
  pointer-events: none;
}

.author-photo i {
  font-size: 6rem;
  color: rgba(255, 255, 255, 0.9);
}

.author-photo.has-image {
  background: none;
  border: 4px solid var(--accent-gold);
}

.author-photo.has-image::before {
  display: none;
}

.author-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
}

.author-info h3 {
  margin-bottom: 15px;
  color: var(--primary-blue-dark);
}

.author-info p {
  margin-bottom: 15px;
  font-size: 1.05rem;
}

.author-signature {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-style: italic;
  color: var(--accent-gold);
  margin-top: 20px;
}

/* ========================================
   GUARANTEE SECTION
======================================== */
.guarantee {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--white) 100%);
}

.guarantee-content {
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  padding: 50px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-medium);
  border: 2px solid var(--accent-gold);
}

.guarantee-badge {
  min-width: 150px;
  text-align: center;
}

.guarantee-badge i {
  font-size: 5rem;
  color: var(--accent-gold);
}

.guarantee-badge span {
  display: block;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--accent-gold);
  margin-top: 10px;
}

.guarantee-text h3 {
  margin-bottom: 15px;
  color: var(--text-dark);
}

.guarantee-text p {
  font-size: 1.05rem;
}

/* ========================================
   FAQ SECTION
======================================== */
.faq {
  padding: 100px 0;
  background: var(--off-white);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  margin-bottom: 15px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.faq-question {
  width: 100%;
  padding: 25px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  text-align: left;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary-blue);
}

.faq-question i {
  font-size: 1.2rem;
  color: var(--primary-blue);
  transition: var(--transition);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-content {
  padding: 0 30px 25px;
  color: var(--text-medium);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* ========================================
   FINAL CTA SECTION
======================================== */
.final-cta {
  padding: 100px 0;
  background: var(--gradient-sky);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(2px 2px at 10% 10%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(3px 3px at 30% 25%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(2px 2px at 50% 15%, rgba(255,255,255,0.7) 50%, transparent 50%),
    radial-gradient(2px 2px at 70% 30%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(3px 3px at 85% 20%, rgba(255,255,255,0.4) 50%, transparent 50%);
  animation: twinkle 4s ease-in-out infinite;
  pointer-events: none;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  color: var(--white);
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.cta-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-box {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  padding: 50px;
  border-radius: var(--border-radius-lg);
  max-width: 500px;
  margin: 0 auto;
  box-shadow: var(--shadow-strong);
}

.cta-price {
  margin-bottom: 30px;
}

.cta-price .old-price {
  font-size: 1.3rem;
  color: var(--text-light);
  text-decoration: line-through;
}

.cta-price .current-price {
  display: block;
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--primary-blue-dark);
  margin: 10px 0;
}

.cta-price .installments {
  font-size: 1.1rem;
  color: var(--text-medium);
}

.cta-features {
  margin-bottom: 30px;
  text-align: left;
}

.cta-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 1rem;
  color: var(--text-dark);
}

.cta-features i {
  color: #27ae60;
  font-size: 1.2rem;
}

.cta-box .btn-primary {
  width: 100%;
  padding: 20px;
  font-size: 1.2rem;
}

.cta-secure {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.cta-secure i {
  color: #27ae60;
}

/* ========================================
   FOOTER
======================================== */
.footer {
  background: linear-gradient(180deg, var(--text-dark) 0%, #1a2634 100%);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 100px; /* 100px para compensar o floating-cta */
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
  text-align: left;
}

.footer-brand h4 {
  color: var(--white);
  font-size: 1.3rem;
  margin-bottom: 10px;
  font-family: 'Cormorant Garamond', serif;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-legal h5 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.footer-legal a {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: var(--transition);
}

.footer-legal a:hover {
  color: var(--accent-gold);
  padding-left: 5px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-wrap: wrap;
  gap: 20px;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  margin: 0;
}

.footer-developer {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  padding: 10px 20px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-developer span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.footer-developer i {
  color: #e74c3c;
  animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.footer-developer a {
  color: var(--accent-gold);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-developer a:hover {
  color: var(--white);
}

.footer-developer a strong {
  font-weight: 700;
}

@media (max-width: 768px) {
  .footer {
    padding-bottom: 140px; /* Mais espaço no mobile para floating-cta */
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
  }

  .footer-legal a {
    display: inline-block;
    margin: 0 10px 10px;
  }

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

  .footer-developer {
    width: 100%;
    justify-content: center;
  }
}

/* ========================================
   FLOATING CTA
======================================== */
.floating-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  padding: 15px 20px;
  box-shadow: 0 -5px 30px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

/* Espaço para o footer não ficar escondido pelo floating-cta */

/* Botão Scroll to Top */
.scroll-top-btn {
  position: fixed;
  bottom: 100px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary-blue);
  color: white;
  border: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  background: var(--primary-blue-dark);
  transform: translateY(-3px);
}

@media (max-width: 768px) {
  .scroll-top-btn {
    bottom: 90px;
    right: 15px;
    width: 45px;
    height: 45px;
  }
}

.floating-price {
  font-weight: 700;
  color: var(--text-dark);
}

.floating-price .value {
  font-size: 1.5rem;
  color: var(--primary-blue-dark);
}

.floating-cta .btn-primary {
  padding: 14px 35px;
  font-size: 1rem;
}

/* ========================================
   ANIMATIONS
======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ========================================
   RESPONSIVE DESIGN
======================================== */
@media (max-width: 1024px) {
  .hero-content {
    display: flex;
    flex-direction: column-reverse;
    text-align: center;
    gap: 40px;
  }

  .hero-features {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-cta {
    justify-content: center;
    align-items: center;
  }

  .solution-content {
    grid-template-columns: 1fr;
  }

  .author-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .guarantee-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .container {
    padding: 0 15px;
  }

  .hero {
    min-height: auto;
    padding: 60px 0 100px;
  }

  .hero-content {
    padding: 80px 0 60px;
  }

  .book-cover {
    max-width: 280px;
  }

  .pain-grid,
  .benefits-grid,
  .testimonials-grid,
  .inside-grid {
    grid-template-columns: 1fr;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .cta-box {
    padding: 35px 25px;
  }

  .floating-cta {
    flex-direction: column;
    gap: 8px;
    padding: 15px 20px 25px;
    background: var(--white);
  }

  .floating-cta .floating-price {
    font-size: 0.95rem;
  }

  .floating-cta .floating-price .value {
    font-size: 1.3rem;
  }

  .floating-cta .btn-primary {
    width: 100%;
    padding: 14px 20px;
    font-size: 0.95rem;
  }

}

@media (max-width: 480px) {
  .hero-price .current-price {
    font-size: 2rem;
  }

  .cta-price .current-price {
    font-size: 2.5rem;
  }

  .guarantee-content {
    padding: 30px 20px;
  }

  .guarantee-badge i {
    font-size: 4rem;
  }
}