:root {
  --primary: #ff6b6b;
  --primary-dark: #ee5a5a;
  --secondary: #4ecdc4;
  --secondary-dark: #3dbdb5;
  --accent: #feca57;
  --accent-dark: #f9b93e;
  --gradient-primary: linear-gradient(135deg, #ff6b6b 0%, #feca57 100%);
  --gradient-secondary: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --gradient-dark: linear-gradient(135deg, #2c3e50 0%, #1a1a2e 100%);
  --text-dark: #2d3436;
  --text-light: #636e72;
  --text-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(255, 107, 107, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-white);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes gradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-slideInLeft {
  animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slideInRight {
  animation: slideInRight 0.6s ease-out forwards;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  text-decoration: none;
}

.logo-icon {
  font-size: 2rem;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--gradient-primary);
  color: var(--text-white) !important;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  background-size: 200% 200%;
  animation: gradient 15s ease infinite;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

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

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.2);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-title span {
  background: linear-gradient(135deg, #feca57 0%, #ff6b6b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.hero-feature-icon {
  background: rgba(255, 255, 255, 0.2);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-dark);
  box-shadow: 0 4px 20px rgba(254, 202, 87, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(254, 202, 87, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-white);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

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

.ebook-mockup {
  position: relative;
  width: 100%;
  max-width: 400px;
  animation: float 4s ease-in-out infinite;
}

.ebook-mockup img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.ebook-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
  z-index: -1;
}

.floating-badge {
  position: absolute;
  background: var(--bg-white);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: float 3s ease-in-out infinite;
}

.floating-badge.top-right {
  top: 10%;
  right: -10%;
  animation-delay: 0.5s;
}

.floating-badge.bottom-left {
  bottom: 20%;
  left: -15%;
  animation-delay: 1s;
}

.floating-badge-icon {
  font-size: 1.5rem;
}

.section {
  padding: 100px 0;
}

.section-light {
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-block;
  background: var(--gradient-primary);
  color: var(--text-white);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.section-description {
  font-size: 1.1rem;
  color: var(--text-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

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

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 24px;
}

.feature-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.feature-description {
  color: var(--text-light);
  line-height: 1.7;
}

.pricing-section {
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}

.pricing-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(78, 205, 196, 0.1) 0%, transparent 50%);
}

.pricing-section .section-title,
.pricing-section .section-description {
  color: var(--text-white);
}

.pricing-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.pricing-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--text-white);
  padding: 8px 24px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pricing-header {
  margin-bottom: 30px;
}

.pricing-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.pricing-subtitle {
  color: var(--text-light);
}

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

.pricing-amount {
  font-size: 4rem;
  font-weight: 800;
  color: var(--primary);
}

.pricing-currency {
  font-size: 1.5rem;
  vertical-align: top;
}

.pricing-period {
  color: var(--text-light);
  font-size: 1rem;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 40px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #eee;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features-icon {
  width: 24px;
  height: 24px;
  background: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.pricing-cta {
  width: 100%;
  padding: 18px;
  font-size: 1.1rem;
}

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

.pricing-guarantee-icon {
  font-size: 1.2rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 30px;
  font-size: 5rem;
  color: var(--primary);
  opacity: 0.1;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-content {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.testimonial-info h4 {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.testimonial-info p {
  font-size: 0.9rem;
  color: var(--text-light);
}

.testimonial-rating {
  color: var(--accent);
  font-size: 1rem;
  margin-top: 4px;
}

.trust-section {
  background: var(--bg-light);
  padding: 60px 0;
}

.trust-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 40px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
}

.trust-icon {
  font-size: 2rem;
}

.trust-text {
  font-weight: 500;
}

.faq-section {
  padding: 100px 0;
}

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

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-light);
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--primary);
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 24px;
}

.faq-answer p {
  color: var(--text-light);
  line-height: 1.7;
}

.newsletter-section {
  background: var(--gradient-primary);
  padding: 80px 0;
  text-align: center;
}

.newsletter-content {
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 16px;
}

.newsletter-description {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 450px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1;
  padding: 16px 24px;
  border: none;
  border-radius: var(--radius-full);
  font-size: 1rem;
  outline: none;
}

.newsletter-btn {
  padding: 16px 32px;
  background: var(--text-dark);
  color: var(--text-white);
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.newsletter-btn:hover {
  background: #1a1a2e;
  transform: scale(1.05);
}

.footer {
  background: var(--text-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: var(--text-white);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.footer-brand p {
  line-height: 1.7;
}

.footer-links h4 {
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
}

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

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

.footer-bottom p {
  font-size: 0.9rem;
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  text-decoration: none;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.checkout-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  backdrop-filter: blur(5px);
}

.checkout-modal.active {
  display: flex;
}

.checkout-content {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 450px;
  width: 90%;
  position: relative;
  animation: fadeInUp 0.3s ease-out;
}

.checkout-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition);
}

.checkout-close:hover {
  color: var(--text-dark);
}

.checkout-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.checkout-subtitle {
  color: var(--text-light);
  text-align: center;
  margin-bottom: 32px;
}

.checkout-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input {
  padding: 14px 16px;
  border: 2px solid #e0e0e0;
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group input::placeholder {
  color: #aaa;
}

.checkout-submit {
  margin-top: 10px;
}

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

.loading {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.loading.active {
  display: flex;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

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

  .hero-visual {
    order: -1;
  }

  .ebook-mockup {
    max-width: 300px;
  }

  .floating-badge {
    display: none;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

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

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

  .pricing-amount {
    font-size: 3rem;
  }

  .features-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .newsletter-form {
    flex-direction: column;
  }

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .section {
    padding: 60px 0;
  }

  .pricing-card {
    padding: 40px 24px;
  }
}