/* Variables globales */
:root {
  --primary-color: #25D366;  /* Color de WhatsApp */
  --secondary-color: #128C7E;
  --dark-color: #075E54;
  --light-color: #DCF8C6;
  --white: #ffffff;
  --gray: #4a4a4a;
}

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

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  color: var(--gray);
}

/* Header y navegación */
header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  padding: 1rem 0;
  position: fixed;
  width: 100%;
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;  /* Aumentado ligeramente */
  font-weight: bold;
  color: var(--primary-color);
  text-transform: uppercase;  /* Añadido para dar más presencia */
  letter-spacing: 1px;  /* Añadido para mejorar legibilidad */
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav ul li a {
  text-decoration: none;
  color: var(--gray);
  transition: color 0.3s ease;
}

nav ul li a:hover {
  color: var(--primary-color);
}

/* Sección hero */
#hero {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  color: var(--white);
}

.cta-button {
  background-color: var(--white);
  color: var(--primary-color);
  padding: 1rem 2rem;
  border: none;
  border-radius: 5px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.cta-button:hover {
  transform: scale(1.05);
}

/* Sección de características */
#funciones {
  padding: 4rem 2rem;
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Sección de precios */
#precios {
  padding: 4rem 2rem;
  background-color: var(--light-color);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--white);
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.pricing-card.featured {
  transform: scale(1.05);
  border: 2px solid var(--primary-color);
}

.pricing-card .price {
  font-size: 2rem;
  color: var(--primary-color);
  margin: 1rem 0;
}

.pricing-card ul {
  list-style: none;
  padding: 1rem 0;
}

.pricing-card button {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

/* Footer */
footer {
  background-color: var(--dark-color);
  color: var(--white);
  padding: 3rem 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  color: var(--white);
  font-size: 1.5rem;
  transition: color 0.3s ease;
}

.social-icons a:hover {
  color: var(--primary-color);
}

/* Características */
.feature-card {
  background: var(--white);
  border-radius: 10px;
  padding: 2rem;
  margin: 1rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
}

/* Botón de WhatsApp flotante */
.whatsapp-button {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--primary-color);
  color: var(--white);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}

.whatsapp-button:hover {
  transform: scale(1.1);
}

/* Sección de IA y automatización */
.ai-section {
  background-color: var(--light-color);
  padding: 4rem 2rem;
}

.ai-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Sección de inventario */
.inventory-section {
  padding: 4rem 2rem;
}

.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 1rem;
  }
  
  .whatsapp-button {
    bottom: 1rem;
    right: 1rem;
    width: 50px;
    height: 50px;
  }
  
  .feature-card {
    margin: 0.5rem;
  }
}