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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  overflow-x: hidden;
}

/*  Barra de navegacion */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(82, 140, 206, 0.295);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
  font-size: 2.5rem;
  font-weight: bold;
  color: gold;
  padding-left: 20px;
}

.nav-menu {
  display: flex;
  list-style: none;
  font-size: 1.5rem;
  gap: 2rem;
  justify-content: center;
}

.nav-menu a {
  text-decoration: none;
  color: #333;
  transition: color 0.3s ease;
  position: relative;
}

.nav-menu a:hover {
  color: gold;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: #2563eb;
  transition: width 0.3s ease;
}
.nav-menu a:hover::after {
  width: 100%;
}

.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="white" opacity="0.1"/><circle cx="80" cy="40" r="0.5" fill="white" opacity="0.1"/><circle cx="40" cy="80" r="1.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  animation: float 20s ease-in-out infinite;
}

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

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
  color: white;
  z-index: 2;
  position: relative;
}

.hero-titulo {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
  opacity: 0;
  animation: slideUp 1s ease 0.5s forwards;
}

.hero-subtitulo {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  opacity: 0;
  animation: slideUp 1s ease 0.7s forwards;
}

.hero-description {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  opacity: 0;
  animation: slideUp 1s ease 0.9s forwards;
}

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

.ctabuttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: slideUp 1s ease 1.1s forwards;
}
.btn {
  padding: 12px 30px;
  border: none;
  border-radius: 50px;
  font-size: 1.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: white;
  color: gold;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: white;
  color: gold;
  transform: translateY(-2px);
}

.section {
  padding: 80px 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.section-titulo {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: #2563eb;
  position: relative;
}
.section-titulo::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 4px;
  background: gold;
  border-radius: 2px;
}

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

.skill-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 15px 10px 0.5px rgba(216, 167, 7, 0.918);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.skill-icon {
  font-size: 3rem;
  color: #2563eb;
  margin-bottom: 1rem;
}

.skill-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #333;
}
.skill-description {
  color: #666;
  line-height: 1.6;
}

.skill-level {
  margin-top: 1rem;
}

.skill-bar {
  background: #e5e7eb;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 0.5rem;
}
.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #3b82f6);
  border-radius: 4px;
  transition: width 2s ease;
}

/* Proyectos Section */
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
 .project-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

            .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

        .project-image {
            height: 200px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 4rem;
        }

           .project-content {
            padding: 1.5rem;
        }

        .project-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #333;
        }
    .project-description {
            color: #666;
            margin-bottom: 1rem;
            line-height: 1.5;
        }

        .project-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .tech-tag {
            background: #e5e7eb;
            color: #374151;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
        }

          .project-links {
            display: flex;
            gap: 1rem;
        }

        .project-link {
            padding: 0.5rem 1rem;
            border-radius: 25px;
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .project-link.demo {
            background: #2563eb;
            color: white;
        }

        .project-link.demo:hover {
            background: #1d4ed8;
            transform: translateY(-2px);
        }

        .project-link.code {
            background: #374151;
            color: white;
        }

        .project-link.code:hover {
            background: #111827;
            transform: translateY(-2px);
        }

        /* Contacto Section */
        .contact {
            background: #f8fafc;
        }

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

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

        .contact-item {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease;
        }

        .contact-item:hover {
            transform: translateY(-5px);
        }

        .contact-icon {
            font-size: 2rem;
            color: #2563eb;
            margin-bottom: 1rem;
        }

         .footer {
            background: #1f2937;
            color: white;
            text-align: center;
            padding: 2rem 0;
        }

        .social-links {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-top: 1rem;
        }

        .social-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: #374151;
            color: white;
            border-radius: 50%;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .social-link:hover {
            background: #2563eb;
            transform: translateY(-3px);
        }
 /* Mobile Responsivo */
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hero-titulo {
                padding-top: 2.5rem ;
                font-size: 2.5rem;
            }

            .hero-subtitulo {
                font-size: 1.1rem;
            }

            .ctabuttons {
                flex-direction: column;
                align-items: center;
            }

            .skills-grid,
            .projects-grid {
                grid-template-columns: 1fr;
            }

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

        /* Animaciones de entrada */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Scroll suave */
        html {
            scroll-behavior: smooth;
        }

        /* Placeholder para proyectos futuros */
        .coming-soon {
            background: linear-gradient(135deg, #e5e7eb 0%, #f3f4f6 100%);
            border: 2px dashed #9ca3af;
        }

        .coming-soon .project-image {
            background: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
        }
        }