* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #000;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* HERO SECTION */
.hero {
  background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 15px;
  line-height: 1.2;
}

.hero-tagline {
  font-size: 2rem;
  font-weight: bold;
  color: #ffd700;
  margin-bottom: 25px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 40px;
  color: #ccc;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-radius: 8px;
}

.hero-cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}

/* BUTTONS */
.btn {
  padding: 15px 30px;
  font-size: 1.1rem;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: linear-gradient(135deg, #ffd700 0%, #ffa500 100%);
  color: #000;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
  background: transparent;
  color: #ffd700;
  border: 2px solid #ffd700;
}

.btn-secondary:hover {
  background: #ffd700;
  color: #000;
}

.btn-outline {
  background: transparent;
  color: #333;
  border: 2px solid #333;
}

.btn-outline:hover {
  background: #333;
  color: white;
}

.btn-large {
  padding: 20px 40px;
  font-size: 1.2rem;
}

.btn-discount {
  font-size: 0.9rem;
  font-weight: normal;
  opacity: 0.8;
}

/* BOOKS SHOWCASE */
.books-showcase {
  background: white;
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 50px;
  color: #333;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.book-item {
  text-align: center;
  padding: 20px;
  border-radius: 10px;
  transition: transform 0.3s ease;
}

.book-item:hover {
  transform: translateY(-5px);
}

.book-item img {
  width: 150px;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 15px;
}

.book-item h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: #333;
}

.book-item p {
  color: #666;
  font-size: 0.9rem;
}

/* OFFERS SECTION */
.offers {
  background: #f8f8f8;
  padding: 80px 0;
}

.offers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 800px;
  margin: 0 auto;
}

.offer-card {
  background: white;
  padding: 40px;
  border-radius: 15px;
  text-align: center;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.offer-card.featured {
  border: 3px solid #ffd700;
  transform: scale(1.05);
}

.badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: #ffd700;
  color: #000;
  padding: 8px 20px;
  border-radius: 20px;
  font-weight: bold;
  font-size: 0.9rem;
}

.offer-card h3 {
  font-size: 1.8rem;
  margin-bottom: 15px;
  color: #333;
}

.price-container {
  margin-bottom: 10px;
}

.original-price {
  font-size: 1.2rem;
  color: #999;
  text-decoration: line-through;
  margin-bottom: 5px;
}

.price {
  font-size: 3rem;
  font-weight: bold;
  color: #ffd700;
  margin-bottom: 0;
}

.offer-subtitle {
  color: #666;
  margin-bottom: 25px;
}

.offer-features {
  list-style: none;
  margin-bottom: 30px;
  text-align: left;
}

.offer-features li {
  margin-bottom: 10px;
  font-size: 1rem;
}

.check-icon {
  color: #ffd700;
  font-weight: bold;
  font-size: 1.2rem;
  margin-right: 8px;
  background: #ffd700;
  color: #000;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
}

/* BENEFITS SECTION */
.benefits {
  background: #f8f9fa;
  padding: 80px 0;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.benefit-item {
  text-align: center;
  padding: 40px 30px;
  background: white;
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.benefit-icon {
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 80px;
  height: 80px;
  background: rgba(255, 215, 0, 0.1);
  border-radius: 50%;
  margin: 0 auto 20px auto;
}

.benefit-item h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: #333;
}

.benefit-item p {
  color: #666;
}

/* URGENCY SECTION */
.urgency {
  background: #1a1a1a;
  color: white;
  padding: 80px 0;
  text-align: center;
}

.urgency .section-title {
  color: white;
}

.countdown-container {
  margin-bottom: 50px;
}

.countdown {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 20px;
}

.countdown-item {
  background: #000;
  color: #ffd700;
  padding: 20px;
  border-radius: 15px;
  min-width: 100px;
  border: 2px solid #ffd700;
}

.countdown-item span {
  display: block;
  font-size: 2rem;
  font-weight: bold;
}

.countdown-item label {
  font-size: 0.9rem;
}

.urgency-text {
  font-size: 1.1rem;
  color: #ccc;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.testimonial {
  background: white;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid #f0f0f0;
}

.stars {
  color: #ffd700;
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.testimonial p {
  font-style: italic;
  margin-bottom: 10px;
  color: #333;
}

.testimonial span {
  color: #666;
  font-weight: bold;
}

/* GUARANTEE SECTION */
.guarantee {
  background: white;
  padding: 60px 0;
  border-top: 1px solid #f0f0f0;
}

.guarantee-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  text-align: center;
}

.guarantee-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.guarantee-text h2 {
  font-size: 2rem;
  margin-bottom: 15px;
  color: #333;
}

.guarantee-text p {
  font-size: 1.1rem;
  color: #666;
}

/* FINAL CTA */
.final-cta {
  background: #000;
  color: white;
  padding: 80px 0;
  text-align: center;
}

.final-cta .section-title {
  color: white;
  margin-bottom: 40px;
}

.final-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-tagline {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .section-title {
    font-size: 2rem;
  }

  .books-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
  }

  .offers-grid {
    grid-template-columns: 1fr;
  }

  .offer-card.featured {
    transform: none;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .countdown {
    gap: 10px;
  }

  .countdown-item {
    min-width: 70px;
    padding: 15px;
  }

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

  .final-buttons {
    flex-direction: column;
    align-items: center;
  }
}

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

  .hero-tagline {
    font-size: 1.2rem;
  }

  .container {
    padding: 0 15px;
  }

  .btn {
    padding: 12px 25px;
    font-size: 1rem;
  }

  .btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
  }
}