/* Reset y configuración base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Arial', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

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

/* Header */
.header {
  background: #fff;
  padding: 15px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo h1 {
  font-size: 1.8rem;
  font-weight: bold;
  color: #2c3e50;
}

/* Sección Hero - Elemento más importante para conversión */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 80px 0;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-size: 3rem;
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 20px;
}

.highlight {
  color: #ffd700;
  background: rgba(255, 215, 0, 0.2);
  padding: 2px 8px;
  border-radius: 4px;
}

.hero-subtitle {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.95;
  line-height: 1.6;
}

/* Beneficios - Elementos clave de conversión */
.benefits {
  list-style: none;
  margin-bottom: 40px;
}

.benefits li {
  font-size: 1.1rem;
  margin-bottom: 12px;
  padding-left: 10px;
}

/* Formulario de suscripción - Centro de conversión */
.signup-form {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
  color: #333;
}

.form-header {
  text-align: center;
  margin-bottom: 30px;
}

.form-header h2 {
  font-size: 1.8rem;
  color: #2c3e50;
  margin-bottom: 8px;
}

.form-header p {
  color: #666;
  font-size: 1rem;
}

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

.input-group input {
  width: 100%;
  padding: 15px;
  font-size: 1rem;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  transition: border-color 0.3s ease;
}

.input-group input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* CTA Button - Elemento crítico de conversión */
.cta-button {
  background: linear-gradient(135deg, #ff6b6b, #ff8e53);
  color: white;
  border: none;
  padding: 18px 30px;
  font-size: 1.1rem;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(255, 107, 107, 0.3);
}

.privacy-note {
  font-size: 0.85rem;
  color: #2e2e2e;
  text-align: center;
  line-height: 1.4;
}

.privacy-note a {
  color: #0066cc;
  text-decoration: underline;
  font-weight: 500;
  transition: all 0.3s ease;
}

.privacy-note a:hover {
  color: #004499;
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.privacy-note a:focus {
  outline: 2px solid #0066cc;
  outline-offset: 2px;
  border-radius: 2px;
}

/* Prueba social - Elemento de conversión */
.social-proof {
  background: #f8f9fa;
  padding: 60px 0;
  text-align: center;
}

.social-proof h3 {
  font-size: 1.8rem;
  color: #2c3e50;
  margin-bottom: 40px;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.testimonial {
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.testimonial p {
  font-style: italic;
  margin-bottom: 15px;
  color: #555;
}

.testimonial cite {
  font-weight: bold;
  color: #2c3e50;
  font-style: normal;
}

/* Sección de categorías */
.categories {
  padding: 80px 0;
  background: white;
}

.categories h2 {
  text-align: center;
  font-size: 2.5rem;
  color: #2c3e50;
  margin-bottom: 50px;
}

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

.category-item {
  text-align: center;
  padding: 30px 20px;
  border-radius: 10px;
  transition: transform 0.3s ease;
}

.category-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.category-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.category-item h3 {
  font-size: 1.4rem;
  color: #2c3e50;
  margin-bottom: 15px;
}

.category-item p {
  color: #666;
  line-height: 1.5;
}

/* CTA final */
.final-cta {
  background: linear-gradient(135deg, #2c3e50, #34495e);
  color: white;
  padding: 60px 0;
  text-align: center;
}

.final-cta h2 {
  font-size: 2.2rem;
  margin-bottom: 15px;
}

.final-cta p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

.cta-button-secondary {
  display: inline-block;
  background: #ffd700;
  color: #2c3e50;
  padding: 15px 40px;
  font-size: 1.1rem;
  font-weight: bold;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.cta-button-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(255, 215, 0, 0.3);
}

/* Footer */
.footer {
  background: #2c3e50;
  color: white;
  padding: 30px 0;
  text-align: center;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .signup-form {
    padding: 25px;
  }
  
  .categories h2 {
    font-size: 2rem;
  }
  
  .category-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials {
    grid-template-columns: 1fr;
  }
  
  .footer .container {
    flex-direction: column;
    gap: 15px;
  }
  
  .container {
    padding: 0 15px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 50px 0;
  }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .signup-form {
    padding: 20px;
  }
  
  .cta-button, .cta-button-secondary {
    padding: 15px 25px;
    font-size: 1rem;
  }
}

/* Animaciones sutiles para mejorar la experiencia */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content > * {
  animation: fadeInUp 0.8s ease-out;
}

/* Optimizaciones para conversión */
.cta-button {
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.cta-button:hover::before {
  left: 100%;
}

/* Estados de focus para accesibilidad */
.cta-button:focus, .cta-button-secondary:focus {
  outline: 3px solid rgba(255, 215, 0, 0.6);
  outline-offset: 2px;
}