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

body {
  font-family: 'Poppins', sans-serif;
  background: #f5f7fa;
  color: #333;
  line-height: 1.6;
  overflow-x: hidden;
}

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

h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  color: #2c3e50;
  animation: fadeIn 1s ease-out 0.3s forwards;
  opacity: 0;
}

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

/* Navegación fija */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: #2c3e50;
  letter-spacing: 1px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links li a {
  font-weight: 500;
  position: relative;
}

.nav-links li a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  background: #3498db;
  bottom: -4px;
  left: 0;
  transition: width 0.3s ease;
}

.lang-switch{
  font-weight: 200;
  font-size: 0.7rem;
}

.nav-links li a:hover::after {
  width: 100%;
}

/* Sección Hero */
.hero {
  height: 50vh;
  background: linear-gradient(135deg, #6b73ff 0%, #000dff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 0 1rem;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  animation: fadeIn 1.5s ease-out;
}

.hero-content h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: 2px solid #fff;
  border-radius: 50px;
  font-weight: 600;
  transition: background 0.3s ease, color 0.3s ease;
}

.btn:hover {
  background: #fff;
  color: #000dff;
}

/* Secciones */
section {
  padding: 3rem 0;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

/* Sección Acerca de */
.about {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
}

.about img {
  flex: 1 1 300px;
  max-width: 350px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  animation: fadeIn 1s ease-out 0.5s forwards;
  opacity: 0;
}

.about-text {
  flex: 2 1 400px;
  animation: fadeInUp 1s ease-out 0.7s forwards;
  opacity: 0;
}

.about-text h2 {
  text-align: left;
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #2c3e50;
}

.about-text p {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #555;
}

/* Sección Educación y Experiencia */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.timeline-item {
  background: #fff;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  animation: fadeInUp 1s forwards;
  opacity: 0;
}

.timeline-item:nth-child(1) {
  animation-delay: 0.3s;
}

.timeline-item:nth-child(2) {
  animation-delay: 0.5s;
}

.timeline-item:nth-child(3) {
  animation-delay: 0.7s;
}

.timeline-item h3 {
  font-size: 1.25rem;
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.timeline-item span {
  font-size: 1.2rem;
  color: #666666;
}

.timeline-item p {
  margin-top: 0.75rem;
  font-size: 0.95rem;
  color: #555;
}

/* Sección Habilidades */
.skills {
  text-align: center;
}

.skills-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

.category {
  flex: 1 1 50px;
  background: #fff;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  animation: fadeInUp 1s forwards;
  opacity: 0;
}

.category:nth-child(1) {
  animation-delay: 0.4s;
}

.category:nth-child(2) {
  animation-delay: 0.6s;
}

.category:nth-child(3) {
  animation-delay: 0.8s;
}

.category h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: #3498db;
}

.category ul {
  list-style: none;
  margin-left: 1rem;
  color: #555;
}
.category li {
  list-style-type: none;
}
.category p {
  font-weight: bold;
  margin: auto;
}

/* Sección Contacto */
.contact {
  background: #fff;
  padding: 4rem 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  animation: fadeInUp 1s ease-out 0.5s forwards;
  opacity: 0;
}

.contact h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #2c3e50;
}

.contact p {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  color: #555;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-icons a {
  font-size: 1.5rem;
  color: #000dff;
  transition: transform 0.3s ease;
}

.social-icons a:hover {
  transform: scale(1.2);
}

/* Estilo para el botón de cambio de idioma */
#language-switch {
  padding: 0.5rem 1rem;
  border: 2px solid #3498db;
  border-radius: 50px;
  background: transparent;
  color: #3498db;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
}

#language-switch:hover {
  background: #3498db;
  color: #fff;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 0;
  font-size: 0.875rem;
  color: #777;
  background: #f1f3f6;
}

/* Menú móvil */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 101;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background: #2c3e50;
  transition: 0.3s ease;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 70%;
    background: rgba(255, 255, 255, 0.95);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: 0.3s ease;
  }

  .nav-links.active {
    right: 0;
  }

  .about {
    flex-direction: column;
  }

  .nav-links {
    display: none;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .skills-categories {
    flex-direction: column;
  }
}