/* Variables y reset */
:root {
    --primary-color: #0a0a0a;
    --secondary-color: #151515;
    --accent-color: #d4ff41;
    --text-color: #ffffff;
    --text-secondary: #a0a0a0;
    --linkedin-color: #0077b5;
    --github-color: #333333;
    --transition: all 0.3s ease;
    --spacing: 8rem;
    --spacing-medium: 4rem;
    --spacing-small: 2rem;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
    font-size: 62.5%; /* 1rem = 10px */
    scroll-padding-top: 80px; /* Para compensar la navbar fija */
  }
  
  body {
    font-family: "Helvetica Neue", Arial, sans-serif;
    background-color: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 1.8rem;
    overflow-x: hidden;
    transition: background-color 0.3s ease;
  }
  
  a {
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
  }
  
  ul {
    list-style: none;
  }
  
  h1,
  h2,
  h3,
  h4 {
    font-weight: 700;
    line-height: 1.2;
  }
  
  h1 {
    font-size: 5.6rem;
    margin-bottom: 1rem;
  }
  
  h2 {
    font-size: 3.6rem;
    margin-bottom: 3rem;
  }
  
  h3 {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
  }
  
  p {
    margin-bottom: 1.5rem;
  }
  
  section {
    padding: var(--spacing) 10%;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  
  section.appear {
    opacity: 1;
    transform: translateY(0);
  }
  
  .highlight {
    color: var(--accent-color);
  }
  
  /* Navbar */
  .navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 10%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    transition: var(--transition);
  }
  
  .logo {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: 2px;
  }
  
  .nav-menu {
    display: flex;
    gap: 3rem;
  }
  
  .nav-link {
    font-size: 1.4rem;
    letter-spacing: 1px;
    position: relative;
    padding: 0.5rem 0;
  }
  
  .nav-link:hover {
    color: var(--accent-color);
  }
  
  .nav-link::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-color);
    transition: var(--transition);
  }
  
  .nav-link:hover::after {
    width: 100%;
  }
  
  .menu-toggle {
    display: none;
    cursor: pointer;
  }
  
  .bar {
    display: block;
    width: 25px;
    height: 2px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: var(--transition);
  }
  
  /* Hero Section */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 8rem;
  }
  
  .hero-content {
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .download-cv {
    display: inline-block;
    padding: 1rem 2rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    margin-bottom: 4rem;
    font-size: 1.4rem;
    transition: var(--transition);
  }
  
  .download-cv:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .download-cv i {
    margin-right: 0.8rem;
  }
  
  .profession {
    font-size: 3.6rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-weight: 600;
  }
  
  .name {
    font-size: 5.6rem;
    margin-bottom: 1rem;
    font-weight: 700;
  }
  
  .stack {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
  }
  
  .social-buttons {
    display: flex;
    gap: 2rem;
    margin-bottom: 4rem;
  }
  
  .social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
  }
  
  .social-btn i {
    margin-left: 1rem;
  }
  
  .linkedin {
    background-color: var(--linkedin-color);
  }
  
  .github {
    background-color: var(--github-color);
  }
  
  .social-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  }
  
  .tech-icons {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
  }
  
  .tech-icons i {
    font-size: 2.4rem;
    color: var(--text-secondary);
    transition: var(--transition);
  }
  
  .tech-icons i:hover {
    color: var(--accent-color);
    transform: translateY(-5px);
  }
  
  /* About Section */
  .about {
    background-color: var(--secondary-color);
  }
  
  .section-header {
    margin-bottom: 4rem;
  }
  
  .section-number {
    font-size: 12rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
  }
  
  .about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  
  .about-text {
    color: var(--text-secondary);
  }
  
  /* Skills Section */
  .skills-section {
    background-color: var(--primary-color);
    padding-top: var(--spacing);
    padding-bottom: var(--spacing);
  }
  
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
  }
  
  .skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem;
    background-color: var(--secondary-color);
    border-radius: 8px;
    transition: var(--transition);
  }
  
  .skill-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    background-color: rgba(212, 255, 65, 0.1);
  }
  
  .skill-item i {
    font-size: 3.6rem;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
  }
  
  .skill-item span {
    font-size: 1.4rem;
    font-weight: 600;
  }
  
  /* Projects Section */
  .projects {
    background-color: var(--secondary-color);
  }
  
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Aumentado de 3 a 4 columnas para cards más pequeñas */
    gap: 2rem; /* Reducido el espacio entre cards */
  }
  
  .project-card {
    background-color: #20262e;
    border-radius: 8px; /* Reducido el radio del borde */
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    max-width: 100%; /* Asegura que las cards no excedan el ancho de su contenedor */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  }
  
  .project-card:hover {
    transform: translateY(-5px); /* Reducido el movimiento hacia arriba */
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    background-color: #26282b;
  }
  
  .project-image {
    width: 100%;
    height: 0;
    padding-bottom: 100%; /* Mantiene la relación de aspecto cuadrada */
    position: relative;
    overflow: hidden;
  }
  
  .project-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }
  
  .project-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
  }
  
  .project-card h3 {
    font-size: 2rem;
    margin-bottom: 0.8rem;
    color: #ffffff;
  }
  
  .project-card p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.2rem;
    font-size: 1.6rem; 
    flex-grow: 1;
  }
  
  .project-link {
    display: inline-block;
    color: var(--accent-color);
    font-weight: 600;
    font-size: 1.8rem;
    margin-top: auto;
    align-self: flex-start;
  }
  
  .project-link:hover {
    text-decoration: underline;
  }
  
  /* Contact Section */
  .contact {
    background-color: var(--primary-color);
  }
  
  .contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
  
  .contact-info {
    color: var(--text-secondary);
  }
  
  .contact-details {
    margin-top: 3rem;
  }
  
  .contact-details p {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
  }
  
  .contact-details i {
    margin-right: 1.5rem;
    color: var(--accent-color);
  }
  
  .contact-form .form-group {
    margin-bottom: 2rem;
  }
  
  .contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
  }
  
  .contact-form input,
  .contact-form textarea {
    width: 100%;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-color);
    border-radius: 3px;
    font-size: 1.6rem;
  }
  
  .contact-form input:focus,
  .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
  }
  
  .submit-btn {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border: none;
    padding: 1.2rem 2.4rem;
    font-size: 1.6rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 3px;
  }
  
  .submit-btn:hover {
    background-color: #c0e82c;
  }
  
  /* Footer */
  footer {
    background-color: var(--secondary-color);
    padding: 4rem 10%;
  }
  
  .footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .footer-logo {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 2rem;
  }
  
  .social-links {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  .social-link {
    font-size: 2rem;
    transition: var(--transition);
  }
  
  .social-link:hover {
    color: var(--accent-color);
  }
  
  .footer-nav {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  .footer-nav a:hover {
    color: var(--accent-color);
  }
  
  .copyright {
    color: var(--text-secondary);
    font-size: 1.4rem;
  }
  
  /* Animaciones */
  .fade-in {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    will-change: opacity, transform;
  }
  
  .fade-in.appear {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* Añadir animaciones para elementos dentro de las secciones */
  .fade-in .section-header,
  .fade-in .about-content,
  .fade-in .skills-grid,
  .fade-in .projects-grid,
  .fade-in .contact-content,
  .fade-in .hero-content > * {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    transition-delay: 0.2s;
  }
  
  .fade-in.appear .section-header,
  .fade-in.appear .about-content,
  .fade-in.appear .skills-grid,
  .fade-in.appear .projects-grid,
  .fade-in.appear .contact-content,
  .fade-in.appear .hero-content > * {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* Retraso escalonado para elementos de la hero section */
  .hero-content > *:nth-child(1) {
    transition-delay: 0.1s;
  }
  .hero-content > *:nth-child(2) {
    transition-delay: 0.2s;
  }
  .hero-content > *:nth-child(3) {
    transition-delay: 0.3s;
  }
  .hero-content > *:nth-child(4) {
    transition-delay: 0.4s;
  }
  .hero-content > *:nth-child(5) {
    transition-delay: 0.5s;
  }
  .hero-content > *:nth-child(6) {
    transition-delay: 0.6s;
  }
  
  /* Animación para cambio de sección */
  @keyframes fadeInFromTop {
    0% {
      opacity: 0;
      transform: translateY(-50px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  section.changing {
    animation: fadeInFromTop 0.8s ease forwards;
  }
  
  /* Responsive Design */
  @media (max-width: 1200px) {
    .projects-grid {
      grid-template-columns: repeat(3, 1fr); /* 3 columnas en pantallas más pequeñas */
    }
  }
  
  @media (max-width: 1024px) {
    html {
      font-size: 58%;
    }
  
    section {
      padding: var(--spacing-medium) 8%;
    }
  
    .projects-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  
    .skills-grid {
      grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
  }
  
  @media (max-width: 768px) {
    html {
      font-size: 55%;
    }
  
    section {
      padding: var(--spacing-small) 6%;
    }
  
    .menu-toggle {
      display: block;
    }
  
    .nav-menu {
      position: fixed;
      left: -100%;
      top: 6rem;
      flex-direction: column;
      background-color: var(--secondary-color);
      width: 100%;
      text-align: center;
      transition: var(--transition);
      padding: 2rem 0;
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }
  
    .nav-menu.active {
      left: 0;
    }
  
    .menu-toggle.active .bar:nth-child(2) {
      opacity: 0;
    }
  
    .menu-toggle.active .bar:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
  
    .menu-toggle.active .bar:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
  
    .about-content,
    .contact-content {
      grid-template-columns: 1fr;
    }
  
    .projects-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }
  
    .section-number {
      font-size: 8rem;
    }
  
    .name {
      font-size: 4.2rem;
    }
  
    .profession {
      font-size: 2.8rem;
    }
  
    .social-buttons {
      flex-direction: column;
      gap: 1.5rem;
    }
  }
  
  @media (max-width: 480px) {
    html {
      font-size: 50%;
    }
  
    section {
      padding: var(--spacing-small) 4%;
    }
  
    .skills-grid {
      grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
      gap: 1.5rem;
    }
  
    .projects-grid {
      grid-template-columns: repeat(2, 1fr); /* Mantener 2 columnas en móvil */
      gap: 1rem;
    }
  
    .section-number {
      font-size: 6rem;
    }
  
    .name {
      font-size: 3.6rem;
    }
  
    .profession {
      font-size: 2.4rem;
    }
  
    .footer-nav {
      flex-direction: column;
      gap: 1rem;
    }
  
    .tech-icons {
      flex-wrap: wrap;
      justify-content: center;
    }
  }
  
  @media (max-width: 360px) {
    .projects-grid {
      grid-template-columns: 1fr; /* 1 columna en pantallas muy pequeñas */
    }
  }