/* Variables de colores y fuentes */
:root {
  --primary: #366aff;
  --primary-dark: #ff3c3c;
  --secondary: #10b981;
  --accent: #f59e0b;
  --dark: #1f2937;
  --light: #f9fafb;
  --gray: #6b7280;
  --light-gray: #e5e7eb;
  --white: #ffffff;
  --error: #ef4444;
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--dark);
  background-color: var(--white);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* Utilidades */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center {
  text-align: center;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  margin: 0.5rem auto;
  border-radius: 2px;
}

/* Header y navegación */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1rem 0;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 0.7rem 0;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}

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

.nav-link {
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark);
}

.user-auth {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.5rem;
  border-radius: 6px;
  font-weight: 500;
  transition: var(--transition);
  gap: 0.5rem;
  border: none;
  cursor: pointer;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
  background-color: #0da271;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

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

/* Hero Section */
.hero {
  padding: 8rem 0 5rem;
  background: linear-gradient(135deg, #366aff 0%, #ff3c3c 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
  z-index: 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content .h1-inicio {
  text-align: center;
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--dark);
}

.hero-content .h2-inicio {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1rem;
}

.hero-content .h3-inicio {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.hero-content .p-inicio {
  text-align: center;
  font-size: 1.1rem;
  margin: 1.5rem 0;
  color: #ffffff;
}

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

.hero-image img {
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  max-width: 20%;
  height: auto;
}

.hero-image img:hover {
  transform: scale(1.02);
}

.auth-buttons {
  margin-top: 2rem;
}

.auth-buttons p {
  margin-bottom: 1rem;
  font-style: italic;
}

/* Demo Form Section */
.demo-form {
  padding: 5rem 0;
  background-color: var(--light);
}

.demo-form h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--dark);
}

.demo-form > p {
  text-align: center;
  margin-bottom: 3rem;
  color: var(--gray);
  font-size: 1.1rem;
}

form {
  background-color: var(--white);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  max-width: 800px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

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

.form-group label {
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.form-group input {
  padding: 0.8rem 1rem;
  border: 1px solid var(--light-gray);
  border-radius: 6px;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group button {
  align-self: flex-start;
  margin-top: 1rem;
}

/* Stats Section */
.stats {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
}

.stats .container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.stat {
  text-align: center;
  padding: 2rem;
}

.stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.stat span {
  font-size: 1.2rem;
  font-weight: 500;
}

/* Features Section */
.features {
  padding: 5rem 0;
  background-color: var(--white);
}

.features h2 {
  text-align: center;
  margin-bottom: 3rem;
}

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

.feature {
  text-align: center;
  padding: 2rem;
  border-radius: 12px;
  transition: var(--transition);
  background-color: var(--light);
}

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

.feature img {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  object-fit: contain;
}

.feature p {
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--dark);
}

/* Testimonials Section */
.testimonials {
  padding: 5rem 0;
  background-color: var(--light);
}

.testimonials h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

blockquote {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  position: relative;
}

blockquote::before {
  content: '"';
  position: absolute;
  top: 10px;
  left: 20px;
  font-size: 4rem;
  color: var(--primary);
  opacity: 0.2;
  font-family: Georgia, serif;
}

blockquote p {
  font-style: italic;
  margin-bottom: 1rem;
  color: var(--dark);
  line-height: 1.6;
}

blockquote cite {
  font-weight: 600;
  color: var(--primary);
  font-style: normal;
}

/* Footer */
.footer {
  padding: 3rem 0;
  background-color: var(--dark);
  color: var(--white);
}

.footer .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--white);
}

.footer-links h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--white);
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--light-gray);
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--light-gray);
}

/* Responsive Design */
@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content h1 {
    font-size: 2.8rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: var(--white);
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    z-index: 999;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .stats .container {
    grid-template-columns: 1fr;
  }
  
  .hero-content h1 {
    font-size: 2.3rem;
  }
  
  .hero-content h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 576px) {
  .hero {
    padding: 6rem 0 3rem;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* Animaciones */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 1s ease forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

.delay-3 {
  animation-delay: 0.6s;
}