/* ==========================================================================
   1. VARIABLES Y CONFIGURACIÓN RAÍZ (Diseño 2026)
   ========================================================================== */
:root {
  /* Paleta de Colores (Ingeniería y Tecnología) */
  --bg-main: #0b0e14;          
  --bg-secondary: #161b22;     
  --accent-color: #00d4ff;     
  --accent-soft: rgba(0, 212, 255, 0.1); 
  --text-main: #f0f6fc;        
  --text-muted: #8b949e;       
  --text-highlight: #ffffff;   
  --border-color: #30363d;     
  --success: #238636;          
  --linkedin-color: #0077b5;   
  --whatsapp-color: #25d366;   

  /* Sombras Modernas */
  --glow-shadow: 0 0 15px rgba(0, 212, 255, 0.4); 
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);   

  /* Tipografías Fluidas (Se escalan solas según la pantalla) */
  --font-main: 'Montserrat', sans-serif; 
  --font-body: 'Roboto', sans-serif;    
  --fs-h1: clamp(2.5rem, 5vw + 1rem, 4.5rem);
  --fs-h2: clamp(2rem, 4vw + 1rem, 3rem);
  --fs-h3: clamp(1.25rem, 2.5vw + 0.5rem, 1.75rem);
  --fs-p: clamp(1rem, 1.5vw + 0.5rem, 1.125rem);
}

/* ==========================================================================
   2. RESET Y OPTIMIZACIONES DE RENDIMIENTO
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Prevención de Viudas y Huérfanas en títulos (CSS 2024/2026) */
h1, h2, h3, h4 {
  font-family: var(--font-main);
  color: var(--text-highlight);
  text-wrap: balance; 
  line-height: 1.2;
}

/* Renderizado diferido para secciones pesadas (Acelera carga inicial) */
.section-container {
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* ==========================================================================
   3. NAVEGACIÓN (Glassmorphism)
   ========================================================================== */
header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(11, 14, 20, 0.8);
  backdrop-filter: blur(12px); /* Efecto cristal moderno */
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-family: var(--font-main);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-highlight);
}

.logo span {
  color: var(--accent-color);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

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

.nav-links a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent-color);
}
/* Ocultar botón hamburguesa por defecto en PC */
.menu-toggle {
  display: none;
  font-size: 1.8rem;
  color: var(--text-highlight);
  cursor: pointer;
  transition: color 0.3s ease;
}

.menu-toggle:hover {
  color: var(--accent-color);
}
.btn-cv {
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  padding: 0.5rem 1.2rem;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
}

.btn-cv:hover {
  background: var(--accent-soft);
  box-shadow: var(--glow-shadow);
}

/* ==========================================================================
   4. HERO SECTION (Fondo Animado)
   ========================================================================== */
.hero-section {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
}

#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1; /* Mantiene la animación detrás del contenido */
}

.hero-content h1 {
  font-size: var(--fs-h1);
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.hero-content h3 {
  font-size: var(--fs-h3);
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.tagline {
  font-size: var(--fs-p);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem auto;
  text-wrap: pretty;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.btn-primary, .btn-secondary {
  padding: 0.8rem 2rem;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--bg-main);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-shadow);
}

.btn-secondary {
  border: 1px solid var(--text-muted);
  color: var(--text-main);
}

.btn-secondary:hover {
  border-color: var(--text-highlight);
  color: var(--text-highlight);
}
/* Botones del Header */
.header-btns {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-certificates {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-certificates:hover {
    color: var(--accent-color);
}

.btn-certificates i {
    color: var(--accent-color);
}

/* Ajuste móvil para los botones del header */
@media (max-width: 768px) {
    .header-btns {
        flex-direction: column;
        width: 100%;
        padding: 0 2rem;
    }
    
    .btn-certificates {
        order: 2; /* Aparece debajo del botón de CV en el menú móvil */
    }
}

/* ==========================================================================
   5. COMPONENTES GLOBALES (Badges y Títulos)
   ========================================================================== */
.section-title {
  font-size: var(--fs-h2);
  margin-bottom: 3rem;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--accent-color);
  margin: 0.5rem auto 0;
  border-radius: 2px;
}

.badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.badge.success { background: rgba(35, 134, 54, 0.2); color: var(--success); border: 1px solid var(--success); }
.badge.senior { background: rgba(139, 148, 158, 0.2); color: var(--text-main); border: 1px solid var(--text-muted); }
.badge.learning { background: var(--accent-soft); color: var(--accent-color); border: 1px solid var(--accent-color); }
.badge.dev { background: rgba(162, 89, 255, 0.2); color: #a259ff; }
.badge.ui-ux { background: rgba(255, 107, 107, 0.2); color: #ff6b6b; }
.badge.eng { background: rgba(255, 165, 0, 0.2); color: #ffa500; }
.badge.field { background: rgba(35, 134, 54, 0.2); color: var(--success); }

/* ==========================================================================
   6. SOBRE MÍ (Layout Moderno)
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.about-image {
  position: relative;
}

/* Prevención de CLS en imágenes */
.profile-pic {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  background-color: var(--bg-secondary); /* Color temporal mientras carga */
}

.badges-container {
  margin-top: 1rem;
  text-align: center;
}

.about-text h3 {
  margin-bottom: 1rem;
}

.about-text h4 {
  margin: 1.5rem 0 0.5rem 0;
  color: var(--accent-color);
}

.about-text p, .about-text ul {
  font-size: var(--fs-p);
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.about-text ul {
  padding-left: 1.5rem;
}

.about-text li {
  margin-bottom: 0.5rem;
}

/* ==========================================================================
   7. HABILIDADES Y PROYECTOS (CSS Grid Responsive sin Media Queries extra)
   ========================================================================== */
.bg-secondary {
  background-color: var(--bg-secondary);
}

/* Auto-fit crea columnas automáticamente si hay espacio */
.skills-grid, .projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.skill-card, .project-card {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform; /* Optimización para animaciones GPU */
}

.skill-card:hover, .project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow);
  border-color: var(--accent-color);
}

.card-icon {
  font-size: 2.5rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.skill-list {
  list-style: none;
  padding: 0;
  color: var(--text-muted);
}

.skill-list li {
  margin-bottom: 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.skill-list i {
  margin-top: 5px;
  color: var(--accent-color);
}

/* Proyectos Específico */
.subsection-title {
  font-size: var(--fs-h3);
  margin: 0 0 1.5rem 0;
  color: var(--text-main);
  border-left: 4px solid var(--accent-color);
  padding-left: 10px;
}

.tech-margin {
  margin-top: 4rem;
}

.project-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.project-img-placeholder {
  height: 200px;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.project-info {
  padding: 1.5rem;
  flex-grow: 1;
}

.project-info h4 {
  margin: 0.5rem 0 1rem 0;
  font-size: 1.2rem;
}

.project-info p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* ==========================================================================
   8. FOOTER Y CONTACTO
   ========================================================================== */
.footer-section {
  padding: 4rem 2rem 2rem 2rem;
  text-align: center;
}

.cta-text {
  font-size: var(--fs-p);
  color: var(--accent-color);
  margin-bottom: 3rem;
}

.social-links-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto 3rem auto;
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-main);
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.social-btn:hover {
  transform: translateY(-3px);
  border-color: var(--text-highlight);
}

.social-btn i {
  font-size: 1.5rem;
}

.linkedin-btn:hover i { color: var(--linkedin-color); }
.whatsapp-btn:hover i { color: var(--whatsapp-color); }
.gmail-btn:hover i { color: #ea4335; }
.instagram-btn:hover i { color: #e1306c; }
.facebook-btn:hover i { color: #1877f2; }

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ==========================================================================
   9. BOTONES FLOTANTES (UX)
   ========================================================================== */
.floating-contact {
  position: fixed;
  right: 20px;
  bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  z-index: 1000;
}

.float-btn {
  width: 55px;
  height: 55px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  text-decoration: none;
  font-size: 24px;
  box-shadow: var(--card-shadow);
  transition: transform 0.3s ease;
  position: relative;
}

.float-btn:hover {
  transform: scale(1.1);
}

.linkedin { background-color: var(--linkedin-color); }
.whatsapp { background-color: var(--whatsapp-color); }

.float-btn .tooltip {
  position: absolute;
  right: 70px;
  background: var(--bg-secondary);
  padding: 5px 12px;
  border-radius: 5px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  white-space: nowrap;
  border: 1px solid var(--accent-color);
  color: var(--text-main);
}

.linkedin:hover .tooltip {
  opacity: 1;
}

/* ==========================================================================
   10. MEDIA QUERIES (Mobile First Fallbacks & Menú Hamburguesa)
   ========================================================================== */
@media (max-width: 768px) {
  /* Mostrar botón hamburguesa */
  .menu-toggle {
    display: block;
  }

  /* El menú se convierte en un panel oculto a la derecha */
  .nav-menu {
    position: absolute;
    top: 100%; /* Justo debajo del header */
    right: -100%; /* Oculto fuera de la pantalla */
    width: 100%;
    height: 100vh; /* Ocupa toda la pantalla hacia abajo */
    background: rgba(11, 14, 20, 0.98); /* Fondo casi sólido */
    flex-direction: column; /* Apila los elementos */
    justify-content: flex-start;
    padding-top: 2rem;
    gap: 1.5rem;
    transition: right 0.4s ease-in-out; /* Animación de entrada */
    border-top: 1px solid var(--border-color);
  }

  /* Clase que activa el menú (se pondrá con JS) */
  .nav-menu.active {
    right: 0;
  }

  .nav-links {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }

  .btn-cv {
    margin-top: 1rem;
  }

  /* * SOLUCIÓN AL OVERLAP DEL HERO: 
   * Damos padding superior al hero para que el header delgado no lo tape 
   */
  .hero-section {
    padding-top: 80px; 
  }

  .hero-content h1 {
    font-size: 2.5rem; /* Ajuste para que tu nombre quepa mejor en el celular */
  }

  /* Ajustes generales móviles */
  .about-grid {
    grid-template-columns: 1fr;
  }

  .profile-pic {
    max-width: 250px;
    margin: 0 auto 2rem auto;
    display: block;
  }

  .hero-btns {
    flex-direction: column;
  }

  .floating-contact {
    bottom: 20px;
    right: 15px;
  }

  .float-btn {
    width: 45px;
    height: 45px;
    font-size: 20px;
  }
}
/* ==========================================================================
   11. CLASES DE ANIMACIÓN (Controladas por JS)
   ========================================================================== */
.hidden-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
  will-change: opacity, transform;
}

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

/* Efecto para el header al hacer scroll */
header.scrolled {
  background: rgba(11, 14, 20, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
  border-bottom: 1px solid var(--accent-color);
}
/* Estilos para los enlaces de los proyectos */
.project-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* Contenedor de la imagen con ratio de aspecto fijo para evitar saltos (CLS) */
.project-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9; /* Formato panorámico para screenshots de web */
    overflow: hidden;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.project-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Asegura que la imagen llene el espacio sin deformarse */
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Efecto de Overlay (Capa superior) */
.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 212, 255, 0.7); /* Azul eléctrico con transparencia */
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-overlay span {
    color: var(--bg-main);
    font-weight: bold;
    font-size: 1.1rem;
    font-family: var(--font-main);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

/* Estados Hover */
.project-card:hover .project-screenshot {
    transform: scale(1.1); /* Zoom suave a la imagen */
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-card:hover .project-overlay span {
    transform: translateY(0);
}
/* ==========================================================================
   12. CARRUSELES DE IMÁGENES (Nativo y Optimizado)
   ========================================================================== */
.carousel-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3; /* Formato ideal para fotos de campo */
    overflow: hidden;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.carousel-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    width: 100%;
    height: 100%;
    /* Ocultar barra de scroll estéticamente */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.carousel-track::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.carousel-slide {
    flex: 0 0 100%; /* Cada imagen ocupa el 100% del contenedor */
    width: 100%;
    height: 100%;
    object-fit: cover;
    scroll-snap-align: start; /* Efecto magnético al deslizar */
}

/* Botones Flotantes del Carrusel */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(11, 14, 20, 0.7);
    color: var(--text-highlight);
    border: 1px solid var(--accent-color);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 10;
    opacity: 0; /* Ocultos por defecto */
    transition: opacity 0.3s ease, background 0.3s ease;
}

.carousel-btn:hover {
    background: var(--accent-color);
    color: var(--bg-main);
}

.prev-btn { left: 10px; }
.next-btn { right: 10px; }

/* Mostrar flechas solo cuando el usuario pasa el mouse (PC) o toca la tarjeta (Móvil) */
.project-card:hover .carousel-btn {
    opacity: 1;
}
/* ==========================================================================
   13. GALERÍA AUDIOVISUAL (DRONES & FOTOGRAFÍA)
   ========================================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.gallery-item {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: 12px;
    overflow: hidden;
    cursor: crosshair; /* Cursor de enfoque fotográfico */
    box-shadow: var(--card-shadow);
    will-change: transform;
}

.gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.gallery-overlay {
    position: absolute;
    inset: 0; /* Ocupa todo el espacio (top, left, right, bottom 0) */
    background: linear-gradient(to top, rgba(11, 14, 20, 0.9) 0%, rgba(11, 14, 20, 0) 50%);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.gallery-overlay span {
    color: var(--text-highlight);
    font-family: var(--font-main);
    font-weight: bold;
    font-size: 1.1rem;
    transform: translateY(15px);
    transition: transform 0.4s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.gallery-overlay span i {
    color: var(--accent-color);
}

/* Efectos al pasar el mouse (Hover) */
.gallery-item:hover .gallery-img {
    transform: scale(1.08); /* Zoom sutil y elegante */
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:hover .gallery-overlay span {
    transform: translateY(0);
}