:root {
  --primary: #2a4a7b;
  --primary-light: #3a5a8b;
  --secondary: #e6b325;
  --dark: #0a192f;
  --light: #f8f9fa;
  --gray: #6c757d;
  --light-gray: #e9ecef;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  margin: 0;
  padding: 0;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.btn {
  display: inline-block;
  background-color: var(--secondary);
  color: var(--dark);
  padding: 12px 25px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: #d6a21e;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  font-size: 2rem;
  color: var(--primary);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--secondary);
  margin: 15px auto;
}

.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), 
              url(Presentacion3.jpeg);
  background-size: cover;
  background-position: center;
  color: white;
  text-align: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(42, 74, 123, 0.8) 0%, rgba(42, 74, 123, 0.6) 100%);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  animation: fadeIn 1s ease-out;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  line-height: 1.2;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero .btn {
  background-color: var(--secondary);
  color: var(--dark);
  font-weight: 600;
  padding: 15px 30px;
  font-size: 1.1rem;
  border-radius: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  background-color: #ffc107;
}

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

.service-card {
  background: white;
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.service-card i {
  font-size: 2.5rem;
  color: var(--secondary);
  margin-bottom: 20px;
}

.service-card h3 {
  color: var(--primary);
  margin-bottom: 15px;
}

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

.project-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s;
}

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

.project-image {
  height: 200px;
  background-size: cover;
  background-position: center;
}

.project-card h3 {
  padding: 15px 20px 0;
  color: var(--primary);
}

.project-card p {
  padding: 0 20px 20px;
  color: var(--gray);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 40px 0;
}

.contact-info {
  background: var(--primary);
  color: white;
  padding: 30px;
  border-radius: 8px;
  max-width: 500px;
  margin: 0 auto;
}

.contact-info h3 {
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.contact-info p {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}

.contact-info i {
  margin-right: 10px;
  color: var(--secondary);
}

footer {
  background-color: #1737fe;
  color: white;
  padding: 50px 0 20px;
}

.footer-content {
  text-align: center;
  margin-bottom: 30px;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.social-links {
  margin-top: 20px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255,255,255,0.1);
  border-radius: 50%;
  margin: 0 10px;
  color: white;
  transition: all 0.3s;
}

.social-links a:hover {
  background-color: var(--secondary);
  color: var(--dark);
  transform: translateY(-3px);
}

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

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

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .section {
    padding: 60px 0;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 150px 0 80px;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .section {
    padding: 50px 0;
  }
}