/* ======================================
   Variables y Reset
====================================== */
:root {
  background: linear-gradient(135deg, #1a1c2b, #1a1c2b); /* Verde menta suave */
  --bg-card: #1a1c2b;   
  --primary: #2272FF;   
  --accent: #ff0000;    
  --text: #f5f6fa;     
  --muted: #a3a9b8;     
  --ok: #29d397;
  --radius: 15px;
  --shadow: 0 10px 25px rgba(0,0,0,0.5);
  --transition: 0.5s;
}

/* Modo claro */
.light-mode {
--bg: #ffffff;
 --bg-card: #ff0000;
  --primary: #2272FF;
   --accent: ff0000;
    --text: #1D1D1D;
     --muted: #ffffff;
      --shadow: 0 10px 25px rgba(0,0,0,0.2);
}
#toggle-theme {
  position: fixed;
  top: 35px;
  right: 25px;
  width: 10px;
  height: 10px;
  background: linear-gradient(135deg, #2272FF, #ff0000, #ff9900, #2272FF);
  background-size: 300% 300%; /* gradiente más fluido */
  color: #fff;
  border: none;
  border-radius: 50%;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3), 0 0 15px rgba(255, 255, 255, 0.2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 10000;
  transition: transform 0.3s, box-shadow 0.3s, color 0.3s;

  /* Animación del gradiente */
  animation: gradientShift 5s ease infinite;
}

#toggle-theme:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4), 0 0 20px rgba(255, 255, 255, 0.3);
  color: #fff;
}

/* Keyframes para animar el gradiente */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}






* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  scroll-behavior: smooth;
  font-family: 'Poppins', sans-serif;
}

a {
  text-decoration: none;
}

/* Preloader moderno */
#preloader {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg, #1a1c2b);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 999999;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

/* Animación del contenedor */
#preloader .loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: pulse 1.5s infinite;
}

/* Imagen principal del preloader */
#preloader .loader img {
  width: 180px; /* un poco más grande */
  height: auto;
  opacity: 0;
  animation: fadeIn 1.2s forwards ease-in-out;
}

/* Animaciones */
@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}


/* Animaciones de entrada al hacer scroll */
.scroll-animation {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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


/* ======================================
   Header y Navegación Adaptable
====================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 50px;
  background: transparent;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
}



header.scrolled {
  background: var(--bg-card);
  border-bottom-color: var(--accent);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: bold;
  color: var(--text);
  transition: color var(--transition);
}

.logo img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
}

nav {
  display: flex;
  align-items: center;
  gap: 25px;
}

/* ===========================
   Enlaces del NAV
=========================== */
/* Estilo general de los enlaces del nav */
nav a {
  color: var(--text);
  font-weight: 500;
  transition: color var(--transition), text-shadow 0.3s;
}

/* ================================
   CONTORNO BLANCO EN MODO CLARO
================================ */
body[data-theme="light"] nav a {
  color: #000; /* Texto negro */
  text-shadow:
      1px 1px 0 #fff,
     -1px 1px 0 #fff,
      1px -1px 0 #fff,
     -1px -1px 0 #fff; /* Contorno blanco */
}
nav a:hover {
  color: var(--text-hover);
}

.btn-contact {
  background: var(--accent);
  color: var(--text);
  padding: 10px 20px;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.btn-contact:hover {
  background: var(--primary);
  color: var(--text);
}

/* Burger menú */
.burger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.burger div {
  width: 28px;
  height: 3px;
  background: var(--text);
  border-radius: 2px;
  transition: background var(--transition);
}




/* ======================================
   Usuario logueado / Login/Register
====================================== */
.user-menu {
  display: flex;
  align-items: center;
  margin-left: auto;
  font-family: 'Inter', system-ui, sans-serif;
  position: relative;
  gap: 15px;
}

/* Avatar (inicial o imagen) */
.user-menu .avatar,
.user-menu .avatar-img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-weight: bold;
  transition: background var(--transition), color var(--transition), transform 0.2s ease;
}

.user-menu .avatar {
  background: var(--primary);
  color: #fff;
}

.user-menu .avatar:hover {
  background: #1753c0;
  transform: scale(1.05);

}

/* Imagen de Google */
.user-menu .avatar-img {
  object-fit: cover;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

/* Redefino avatar genérico */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: white;
  font-weight: bold;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Dropdown */
.dropdown-menu {
  position: absolute;
  top: 55px;
  right: 0;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px;
  min-width: 170px;
  display: none;
  flex-direction: column;
  gap: 10px;
  z-index: 2000;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition) ease;
}

.user-info.active .dropdown-menu,
.dropdown-menu.show {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-menu .username {
  font-weight: 600;
  color: var(--text);
}

.dropdown-menu .role {
  font-size: 0.85em;
  color: var(--accent);
  margin-left: 5px;
}

.dropdown-menu a {
  display: block;
  padding: 8px;
  border-radius: 5px;
  text-decoration: none;
  color: var(--text);
  transition: background var(--transition), color var(--transition);
}

.dropdown-menu a:hover {
  background: rgba(255,255,255,0.1);
}

/* Botones login/register/logout */
.user-menu a {
  padding: 8px 18px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95em;
  transition: all var(--transition);
}

.user-menu .btn-login {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 8px rgba(34,114,255,0.3);
}

.user-menu .btn-login:hover {
  background: #1753c0;
  box-shadow: 0 6px 12px rgba(23,83,192,0.4);
}

.user-menu .btn-register {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.user-menu .btn-register:hover {
  background: var(--primary);
  color: #fff;
}

.user-menu .btn-logout {
  background: #ff4b5c;
  color: #fff;
  box-shadow: 0 4px 8px rgba(255,75,92,0.3);
  text-align: center;
}

.user-menu .btn-logout:hover {
  background: #e03d4c;
  box-shadow: 0 6px 12px rgba(224,61,76,0.4);
}

/* --- Responsivo --- */
@media (max-width: 768px) {
  .user-menu {
    gap: 10px;
    flex-direction: column; /* apilar verticalmente */
    align-items: center;    /* centrar botones horizontalmente */
    
  }

  /* Orden de los botones: login arriba */
  .user-menu a.btn-login {
    order: 1;
  }
  .user-menu a.btn-register {
    order: 2;
  }

  /* Botones centrados y ancho completo opcional */
  .user-menu .btn-login,
  .user-menu .btn-register {
    padding: 10px 20px;
    font-size: 0.95em;
    text-align: center;
    width: 100%; /* puedes poner 100% si quieres que ocupen todo el ancho */
    max-width: 250px; /* opcional para no hacerlos gigantes */
  }

  .user-menu .avatar,
  .user-menu .avatar-img {
    width: 32px;
    height: 32px;
  }

  nav {
    position: absolute;
    top: 70px;
    right: -100%;
    background: var(--bg-card);
    flex-direction: column;
    gap: 15px;
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: right 0.3s ease;
  }

  nav.active {
    right: 10px;
  }

  .burger {
    display: flex;
  }
}




/* ======================================
   Panel Admin Adaptable
====================================== */
.admin-panel {
  background: var(--bg-card); /* Se adapta al modo oscuro o claro */
  color: var(--text);
  padding: 2rem;
  margin: 6rem auto 2rem auto;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  max-width: 700px;
  width: 90%; /* Para que se ajuste en móviles */
  transition: background var(--transition), color var(--transition);
}

.admin-panel h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.admin-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap; /* Para que los botones se acomoden en móviles */
  margin-top: 1.5rem;
}

.btn-admin {
  background: var(--accent);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  transition: var(--transition);
}

.btn-admin:hover {
  background: #e43b5c;
}

/* --- Responsivo --- */
@media (max-width: 768px) {
  .admin-panel {
    padding: 1.5rem;
    margin: 5rem auto 2rem auto;
  }

  .admin-panel h2 {
    font-size: 1.6rem;
  }

  .btn-admin {
    width: 100%; /* Botones ocupan todo el ancho */
    text-align: center;
    padding: 12px 0;
  }

  .admin-actions {
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .admin-panel {
    padding: 1rem;
    margin: 4rem auto 1.5rem auto;
  }

  .admin-panel h2 {
    font-size: 1.4rem;
  }

  .btn-admin {
    padding: 10px 0;
    font-size: 0.95rem;
  }
}

/* ======================================
   Hero Section - Versión PC (por defecto)
====================================== */
.hero {
  background: linear-gradient(rgba(15,18,33,0.6), rgba(15,18,33,0.6)),
              url('/static/img/wallpaper/wallpaper.jpg')
              center/cover no-repeat fixed;
  min-height: 100vh;   /* siempre pantalla completa */
  display: flex;
  flex-direction: column;
  justify-content: center; /* centra vertical */
  align-items: center;     /* centra horizontal */
  padding: 0 20px;         
  text-align: center;
  color: var(--text);
  overflow: hidden;
}

.hero h1 {
  font-size: 3rem; /* grande en PC */
  color: var(--accent);
  margin-bottom: 15px;
  opacity: 0;
  transform: translateY(-50px);
  transition: 1s;
}

.hero p {
  font-size: 1.3rem;
  color: var(--muted);
  margin-bottom: 25px;
  opacity: 0;
  transform: translateY(-50px);
  transition: 1.2s;
  font-weight: 600; /* MÁS GROSOR */
}


.hero a {
  background: var(--primary);
  color: #000000;
  padding: 15px 35px; /* botón grande en PC */
  font-weight: bold;
  border-radius: var(--radius);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(-50px);
}

.hero a:hover {
  background: var(--accent);
}

/* ======================================
   Hero Section - Versión PC (por defecto)
====================================== */
.hero {
  background: linear-gradient(
           
             
              ),
              url('/static/img/wallpaper/wallpaper.jpg')
              center/cover no-repeat fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  text-align: center;
  color: #ffffff; /* texto blanco */
  overflow: hidden;
}


/* TÍTULO */
.hero h1 {
   font-size: 3rem; /* grande en PC */
  color: var(--accent);
  margin-bottom: 15px;
  opacity: 0;
  transform: translateY(-50px);
  transition: 1s;
}

/* PÁRRAFO */
.hero p {
  font-size: 1.3rem;
  color: #ffffff;  /* azul pálido */
  margin-bottom: 25px;
  opacity: 0;
  transform: translateY(-50px);
  transition: 1.2s;
  font-weight: 600;
}

/* BOTÓN */
.hero a {
  background: #003f91; /* azul intenso */
  color: #fff;
  padding: 15px 35px;
  font-weight: bold;
  border-radius: var(--radius);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(-50px);
}

.hero a:hover {
  background: #d72638; /* rojo fuerte */
}

/* ======================================
   Hero Section - Versión Móvil
====================================== */
@media (max-width: 768px) {
  .hero {
    background-attachment: scroll;
    padding: 0 15px;
  }

  .hero h1 {
    font-size: 3rem;
    margin-bottom: 15px;
  }

  .hero p {
    font-size: 1.3rem;
    margin-bottom: 25px;
  }

  .hero a {
    padding: 15px 35px;
    font-size: 1rem;
  }
}


/* Overlay dinámico */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(33, 38, 55, 0.10); /* azul grisáceo muy suave */
  transition: 0.6s ease;
  z-index: 0;
  pointer-events: none;
}

.hero.scrolled::before {
  background: rgba(33, 38, 55, 0.60); /* más oscuro */
}

/* Asegurar que el contenido esté encima */
.hero * {
  position: relative;
  z-index: 2;
}

/* Efecto cuando está arriba */
.hero.top h1,
.hero.top p,
.hero.top a {
  text-shadow: 0 0 12px rgba(0, 0, 0, 0.9);
}

/* ======================================
   Sections Generales
====================================== */
section {
  padding: 100px 20px;
}

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

.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 30px auto;
  max-width: 1200px;
  padding: 0 20px;
}

/* Estilo para el h2 de Servicios */
.services h2 {
  color: var(--accent);        /* Dinámico */
  font-size: 2.8rem;
  margin-bottom: 50px;
  text-align: center;
  position: relative;
}

.services h2::after {
  content: '';
  display: block;
  width: 70px;
  height: 4px;
  background: var(--primary);  /* Dinámico */
  margin: 10px auto 0;
  border-radius: 2px;
}

/* Grid */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 20px;
  perspective: 1000px;
}

.services h2 {
  grid-column: 1 / -1;
}

/* Base de las tarjetas: usan variables */
.service-card {
  padding: 30px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s, color 0.3s;
  background: var(--bg-card);  /* Dinámico */
  color: var(--text);          /* Dinámico */
}

/* Hover con efecto 3D */
.service-card:hover {
  transform: translateY(-12px) scale(1.05);
  box-shadow: 0 20px 45px rgba(0,0,0,0.6);
}


/* Iconos */
.service-card i {
  font-size: 3rem;
  margin-bottom: 15px;
  transition: transform 0.3s, color 0.3s;
}
.service-card:hover i {
  transform: scale(1.2);
}

/* Titulos y listas */
.service-card h3 {
  margin-bottom: 15px;
  font-size: 1.4rem;
}

.service-card ul {
  list-style: disc;
  list-style-position: inside;
  padding-left: 0;
  text-align: left;
  margin-bottom: 10px;
}

.service-card li {
  margin: 8px 0;
}

.service-card .price {
  font-weight: 700;
  float: right;
}

.service-card small {
  display: block;
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--muted);   /* Dinámico */
}

/* Íconos conservan color fijo */
.service-card.web i { color: #5F85DB; }
.service-card.systems i { color: #FF7E5F; }
.service-card.support i { color: #FFA500; }
.service-card.database i { color: #00C9FF; }
.service-card.network i { color: #FF6FD8; }
.service-card.digital i { color: #4AC29A; }
.service-card.multimedia i { color: #C89EFF; }

/* Responsive */
@media (max-width: 768px) {
  .service-card {
    padding: 20px;
  }
}


/* ======================================
   Precios
====================================== */
.prices {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 25px;
  margin-top: 30px;
}

.price-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 35px;
  text-align: center;
  width: 260px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.price-card:hover {
  transform: translateY(-15px);
  box-shadow: 0 25px 50px rgba(0,0,0,0.7);
}

.price-card h3 {
  color: var(--primary);
  margin-bottom: 10px;
}

.price-card p {
  color: var(--text);
  margin-bottom: 15px;
}

.price-card .price {
  color: var(--ok);
  font-weight: bold;
  font-size: 1.3rem;
}

/* ======================================
   Portfolio (mejorado)
====================================== */
:root 
 

  body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: var(--bg);
    color: #fff;
  }

  /* Contenedor principal del portafolio */
  .portfolio-profile {
    display: flex;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 50px auto;
    gap: 40px;
    padding: 0 20px;
    align-items: center;
  }

  /* Foto de perfil */
  .profile-photo {
    flex: 1 1 250px;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .profile-photo img {
    width: 250px;
    height: 250px;
    object-fit: cover;
    border-radius: 50%;
    border: 5px solid var(--accent);
    box-shadow: var(--shadow);
    transition: transform 0.3s;
  }

  .profile-photo img:hover {
    transform: scale(1.05);
  }

  /* Información del perfil */
  .profile-info {
    flex: 2 1 500px;
  }

  .profile-info h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--accent);
  }

  .profile-info h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary);
  }

  .profile-info p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    margin-bottom: 20px;
    text-align: justify;
  }

  /* Experiencias / habilidades */
  .profile-section {
    margin-bottom: 20px;
  }

  .profile-section h3 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 10px;
  }

  .profile-section ul {
    list-style: disc;
    padding-left: 20px;
    color: var(--text);
  }

  .profile-section ul li {
    margin: 6px 0;
  }

  /* Botones de contacto / redes */
  .profile-actions {
    margin-top: 20px;
  }

  .profile-actions a {
    display: inline-block;
    text-decoration: none;
    color: #fff;
    background: var(--accent);
    padding: 10px 20px;
    border-radius: var(--radius);
    margin-right: 10px;
    font-weight: 600;
    transition: background 0.3s, transform 0.2s;
  }

  .profile-actions a:hover {
    background: var(--primary);
    transform: scale(1.05);
  }

  /* Responsive */
  @media (max-width: 900px) {
    .portfolio-profile {
      flex-direction: column;
      text-align: center;
    }
    .profile-info {
      flex: 1 1 100%;
    }
    .profile-section ul {
      padding-left: 0;
      list-style-position: inside;
    }
    .profile-actions a {
      margin-bottom: 10px;
    }
  }

  /* Contenedor necesario para 3D tilt */
.tilt-card {
  perspective: 1000px; /* Necesario para efecto 3D */
  margin-bottom: 20px;
}

.tilt-inner {
  transition: transform 0.3s ease;
  transform-style: preserve-3d;
}



/* Empresas desarrolladas */
.companies {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 15px;
}

.company-card {
  background: var(--bg-card, #1e1e1e);
  border-radius: var(--radius, 12px);
  box-shadow: var(--shadow, 0 4px 8px rgba(0,0,0,0.4));
  text-align: center;
  padding: 40px;
  flex: 1 1 150px;
  transition: transform 0.3s, box-shadow 0.3s;
}


/* Solo Hernández TrenzArte en círculo */
.company-card img[alt="Hernández TrenzArte"] {
  width: 80px;          /* ajusta el tamaño si quieres */
  height: 80px;         /* mismo valor para círculo perfecto */
  object-fit: cover;     /* mantiene la proporción y recorta si es necesario */
  border-radius: 50%;    /* esto hace el círculo */
  margin-bottom: 10px;
}

.company-card img {
  width: 120px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 10px;
}

.company-card p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text, #ddd);
}

.company-card:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 6px 12px rgba(0,0,0,0.6);
}

/* Responsive empresas */
@media (max-width: 768px) {
  .companies {
    flex-direction: column;
    align-items: center;
  }
  .company-card {
    width: 100%;
    max-width: 300px;
  }
}

.cta {
  background: linear-gradient(135deg, var(--bg-card), var(--bg));
  text-align: center;
  padding: 40px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  margin-top: 40px;
}

.cta h2 {
  color: var(--accent);
  font-size: 28px;
  margin-bottom: 20px;
}

.cta p {
  color: var(--text);
  font-size: 18px;
  margin-bottom: 30px;
}

.cta .btn {
  display: inline-block;
  background-color: var(--accent);
  color: var(--text);
  padding: 12px 25px;
  font-size: 18px;
  border-radius: 5px;
  text-decoration: none;
  transition: all 0.3s;
}

.cta .btn:hover {
  background-color: var(--primary);
  color: var(--text);
}


/* ======================================
   Contacto Moderno Mejorado Responsive
====================================== */
.contact {
  max-width: 1000px;
  margin: 50px auto;
  padding: 50px 30px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--bg-card), var(--bg));
  box-shadow: var(--shadow);
  text-align: center;
  transition: background 0.5s, padding 0.3s;
}


.contact h2 {
  color: var(--accent);
  font-size: 2.8rem;
  margin-bottom: 50px;
  position: relative;
}

.contact h2::after {
  content: '';
  display: block;
  width: 70px;
  height: 4px;
  background: var(--primary);
  margin: 10px auto 0;
  border-radius: 2px;
}

.contact-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-bottom: 40px;
}

.contact-card {
  background: var(--bg-card);
  padding: 30px 25px;
  border-radius: var(--radius);
  width: 250px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  text-align: center;
  cursor: pointer;
}

.contact-card i {
  font-size: 3.2rem;
  color: var(--primary);
  margin-bottom: 15px;
  transition: transform 0.3s ease, color 0.3s ease;
}

.contact-card h4 {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 1.3rem;
}

.contact-card p {
  font-size: 1rem;
  color: var(--text);
  text-align: center;
}

.contact-card span {
  font-weight: bold;
  color: var(--primary);
}

/* Hover dinámico */
.contact-card:hover {
  transform: translateY(-12px) scale(1.05);
  box-shadow: 0 20px 45px rgba(0,0,0,0.6);
}

.contact-card:hover i {
  color: var(--accent);
  transform: rotate(15deg) scale(1.2);
}

/* Colores degradados por tipo */
.contact-card.whatsapp { background: linear-gradient(135deg, #25D366, #128C7E); color: #fff; }
.contact-card.email { background: linear-gradient(135deg, #FF6B6B, #FF4757); color: #fff; }
.contact-card.modal { background: linear-gradient(135deg, #4AC29A, #3B9D9B); color: #fff; }

.contact-message {
  font-size: 1.3rem;
  color: var(--accent);
  font-weight: 600;
  text-align: center;
  opacity: 0.95;
  margin-top: 30px;
  line-height: 1.5;
}


/* ======================================
   Responsive
====================================== */
@media (max-width: 992px) {
  .contact {
    padding: 40px 20px;
  }

  .contact h2 {
    font-size: 2.5rem;
  }

  .contact-card {
    width: 45%;
    padding: 25px 20px;
  }

  .contact-card i {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .contact-cards {
    flex-direction: column;
    gap: 20px;
  }

  .contact-card {
    width: 80%;
    padding: 20px;
  }

  .contact h2 {
    font-size: 2.2rem;
  }

  .contact-message {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .contact {
    padding: 30px 15px;
  }

  .contact-card {
    width: 100%;
    padding: 15px;
  }

  .contact h2 {
    font-size: 2rem;
  }

  .contact-message {
    font-size: 1rem;
  }
}
.light-mode {
  --bg: #ffffff;
  --bg-card: #f0f0f0; /* Fondo claro para tarjetas */
  --primary: #2272FF;
  --accent: #ff0000;
  --text: #1D1D1D;
  --muted: #6b6b6b;
  --shadow: 0 10px 25px rgba(0,0,0,0.2);
}


/* ======================================
   Certificaciones
====================================== */

/* Diploma destacado */
.diploma-card {
  background: var(--bg-card);
  border: 3px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: 0 15px 35px rgba(0,0,0,0.4);
  padding: 20px;
  margin-bottom: 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: fadeInUp 1s ease-in-out;
}

.diploma-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.diploma-card img {
  width: 100%;
  max-width: 500px;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.diploma-card h3 {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.diploma-card p {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 15px;
}

/* Wrapper para centrar el botón */
.btn-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

/* Botón de Diploma moderno */
.btn-diploma {
  display: inline-block;
  padding: 18px 45px;
  font-size: 1.2rem;
  font-weight: bold;
  color: #fff;
  background: linear-gradient(135deg, #ff0000, #ff0000); /* Degradado moderno */
  border-radius: 40px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* Efecto al pasar el mouse */
.btn-diploma:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 15px 30px rgba(0,0,0,0.5);
  background: linear-gradient(135deg, #ff0000, #ff0000);
}

/* Pequeña animación de brillo al pasar el mouse */
.btn-diploma::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: rgba(255,255,255,0.15);
  transform: rotate(45deg) translate(-100%, -100%);
  transition: all 0.5s ease;
}

.btn-diploma:hover::after {
  transform: rotate(45deg) translate(100%, 100%);
}



.certifications {
  max-width: 1200px;
  margin: 80px auto;
  padding: 40px 20px;
  text-align: center;
}

.certifications h2 {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 40px;
  position: relative;
}

.certifications h2::after {
  content: '';
  display: block;
  width: 70px;
  height: 4px;
  background: var(--primary);
  margin: 10px auto 0;
  border-radius: 2px;
}

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

.cert-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
  cursor: pointer;
}

.cert-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.cert-card:hover img {
  transform: scale(1.05) rotate(1deg);
}

.cert-card h4 {
  margin: 15px 0 5px;
  color: var(--primary);
}

.cert-card p {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 15px;
}

.cert-card .btn-view {
  display: inline-block;
  padding: 8px 15px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  transition: background 0.3s, transform 0.3s;
}

.cert-card .btn-view:hover {
  background: var(--primary);
  transform: scale(1.05);
}

/* Hover 3D tilt efecto */
.cert-card:hover {
  transform: rotateY(5deg) rotateX(5deg) translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

/* Responsive */
@media (max-width: 768px) {
  .certifications-grid {
    grid-template-columns: 1fr;
  }
}

.light-mode {
  --bg: #ffffff;
  --bg-card: #f0f0f0; /* Fondo claro para tarjetas */
  --primary: #2272FF;
  --accent: #ff0000;
  --text: #1D1D1D;
  --muted: #6b6b6b;
  --shadow: 0 10px 25px rgba(0,0,0,0.2);
}


.cookie-consent {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: var(--bg-card);
  color: var(--text);
  padding: 20px 25px;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
  max-width: 500px;
  width: calc(100% - 40px); /* siempre con margen en móviles */
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  z-index: 9999;
  font-size: 0.95rem;
  text-align: center;
  animation: slideUp 0.6s ease forwards;
}

.cookie-consent p {
  margin: 0;
}

.cookie-consent a {
  color: var(--accent);
  text-decoration: underline;
}

/* Botones */
.cookie-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap; /* se acomodan en móviles */
  justify-content: center;
}

.cookie-buttons button {
  padding: 10px 20px;
  border-radius: 25px;
  border: none;
  cursor: pointer;
  font-weight: bold;
  transition: transform 0.2s, background 0.3s;
}

#accept-cookies {
  background: var(--accent);
  color: #fff;
}

#accept-cookies:hover {
  background: var(--primary);
  transform: scale(1.05);
}

#decline-cookies {
  background: #ccc;
  color: #000;
}

#decline-cookies:hover {
  background: #999;
  transform: scale(1.05);
}

/* Animación al aparecer */
@keyframes slideUp {
  from { 
    transform: translateX(-50%) translateY(120px); 
    opacity: 0; 
  }
  to { 
    transform: translateX(-50%) translateY(0); 
    opacity: 1; 
  }
}
/* ===== Responsive ===== */
@media (max-width: 768px) {
  .cookie-consent {
    bottom: 10px;
    padding: 15px;
    font-size: 0.9rem;
    width: 95%;
    border-radius: 10px;
  }

  .cookie-buttons {
    flex-direction: column; /* botones en columna */
    gap: 10px;
    width: 100%;
  }

  .cookie-buttons button {
    width: 100%; /* que ocupen todo el ancho en móviles */
  }
}

/* ======================================
   Contacto
====================================== */
.contact {
  max-width: 1200px;
  margin: 80px auto;
  padding: 40px 20px;
  text-align: center;
}

.contact h2 {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 40px;
  position: relative;
}

.contact h2::after {
  content: '';
  display: block;
  width: 70px;
  height: 4px;
  background: var(--primary);
  margin: 10px auto 0;
  border-radius: 2px;
}

/* Checklist dentro del formulario */
.checklist-box {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 15px;
  margin: 20px 0;
  box-shadow: var(--shadow);
  color: var(--text);
}

.checklist-box h4 {
  margin-bottom: 10px;
  color: var(--primary);
  font-size: 1rem;
}

.checklist-box ul {
  list-style: none;
  padding: 0;
}

.checklist-box li {
  margin: 6px 0;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

/* Estado válido ❌ → ✅ */
.checklist-box li.valid {
  color: var(--ok);
}

.checklist-box li.invalid {
  color: var(--accent);
}


/* Tarjetas de contacto */
.contact-cards {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.contact-card {
  background: var(--bg-card);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  flex: 1 1 250px;
  text-align: center;
}

.contact-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.contact-card h4 {
  margin-bottom: 5px;
  color: var(--accent);
}

.contact-message {
  margin: 20px 0;
  font-size: 1.1rem;
  color: var(--text);
}

/* Formulario */
.contact-form {
  background: var(--bg-card);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 700px;
  margin: 0 auto;
  text-align: left;
}

.form-group {
  margin-bottom: 15px;
}

.contact-form label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
  color: var(--accent);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff; /* ✅ Fondo blanco */
  color: #000;      /* ✅ Texto en negro */
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #777; /* Placeholder gris claro */
}

.contact-form button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: bold;
  padding: 12px 20px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
}

.contact-form button:hover {
  background: var(--primary);
  transform: scale(1.05);
}

/* Mensaje de éxito oculto */
.form-success {
  display: none;
  margin-top: 20px;
  color: rgb(0, 243, 0);
  font-weight: bold;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .contact-cards {
    flex-direction: column;
    align-items: center;
  }
}

/* ======================================
   Footer
====================================== */
.footer {
	background: linear-gradient(135deg, var(--bg-card), var(--bg));
	color: var(--footer-text, #ccc);
	padding: 40px 20px;
	text-align: center;
	border-top: 1px solid #333;
	transition: all 0.3s ease;
}

.footer-contenedor {
	max-width: 1200px;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 20px;
}

.footer-logo img {
	width: 60px;
	border-radius: 50%;
	box-shadow: 0 0 10px #ff0000;
	margin-bottom: 10px;
}

.footer-logo h3 {
	color: #ff0000;
	font-size: 1.5rem;
	margin: 0;
}

.footer-links {
	display: flex;
	flex-wrap: wrap;
	gap: 15px;
	justify-content: center;
}

.footer-links a {
	color: var(--footer-text, #ccc);
	text-decoration: none;
	transition: color 0.3s;
}

.footer-links a:hover {
	color: #ff0000;
}

.footer-redes a {
	color: var(--footer-text, #ccc);
	margin: 0 10px;
	font-size: 1.2rem;
	transition: color 0.3s;
}

.footer-redes a:hover {
	color: #ff0000;
}

.footer-copy {
	margin-top: 10px;
	font-size: 0.9rem;
	color: var(--footer-text, #777);
}

/* ------------------------------
   Modo claro
------------------------------ */
body.light-mode .footer {
	background: linear-gradient(135deg, #f5f5f5, #fff);
	color: #111;
	border-top: 1px solid #ccc;
}

body.light-mode .footer-links a,
body.light-mode .footer-redes a,
body.light-mode .footer-copy {
	color: #111;
}

body.light-mode .footer-links a:hover,
body.light-mode .footer-redes a:hover {
	color: #ff0000; /* mantener hover rojo */
}

.pwa-banner {
    display: none; /* Se muestra con JS */
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: #1b1c2b;
    color: #fff;
    border-radius: 10px;
    padding: 15px 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    z-index: 9999;
    align-items: center;
    gap: 10px;
    font-family: sans-serif;
    max-width: 90%;
}

.pwa-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pwa-logo {
    width: 40px;
    height: 40px;
    border-radius: 5px;
}

.pwa-install-btn {
    background-color: #2272FF;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
}

.pwa-install-btn:hover {
    background-color: #1a5ed8;
}

.pwa-close-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}



/* ======================================
   WhatsApp Flotante Palpitante con Halo
====================================== */
#whatsapp {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 60px;
    height: 60px;
    background-color: #25d366; /* Verde oficial WhatsApp */
    color: #fff;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 28px;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    z-index: 1000;
    opacity: 0;               /* Oculto por defecto */
    visibility: hidden;       /* No ocupa espacio */
    transition: opacity 0.4s ease, visibility 0.4s ease, transform 0.3s ease;

    /* Animación palpitante */
    animation: heartbeat 1.8s infinite;
}

/* Pseudo-elemento para el halo expandible */
#whatsapp::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #25d366;
    opacity: 0.4;
    animation: halo 1.8s infinite;
    top: 0;
    left: 0;
    z-index: -1;
}

/* Hover para destacar */
#whatsapp:hover {
    transform: scale(1.2);
    box-shadow: 0 14px 30px rgba(37, 211, 102, 0.8);
}

/* Animación palpitante */
@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    14% { transform: scale(1.15); }
    28% { transform: scale(1); }
    42% { transform: scale(1.12); }
    70% { transform: scale(1); }
}

/* Animación del halo expandible */
@keyframes halo {
    0% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.6); opacity: 0; }
    100% { transform: scale(1); opacity: 0.4; }
}

/* Clase visible al hacer scroll */
#whatsapp.show {
    opacity: 1;
    visibility: visible;
}


/* ======================================
   Media Queries
====================================== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .burger {
    display: flex;
  }

  nav {
    display: flex;
    flex-direction: column;
    width: 250px;
    height: 100%;
    position: fixed;
    left: -100%;
    top: 0;
    background: var(--bg-card);
    padding-top: 100px;
    gap: 20px;
    transition: var(--transition);
  }

  nav.show {
    left: 0;
  }
}


#scrollToTopBtn {
    position: fixed;
    bottom: 40px;
    left: 40px; /* esquina inferior izquierda */
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, background-color 0.3s;
    z-index: 1000;
}

#scrollToTopBtn:hover {
    background-color: var(--accent);
}

#scrollToTopBtn.show {
    opacity: 1;
    visibility: visible;
}




#accessToolbar {
  position: fixed;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  background: #222;
  border-radius: 0 8px 8px 0;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
}

#accessToolbar button {
  background: #444;
  color: #fff;
  border: none;
  padding: 10px;
  font-size: 20px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}

#accessToolbar button:hover {
  background: #666;
}
.high-contrast {
  background: #000 !important;
  color: #fff !important;
}

.high-contrast a {
  color: #0ff !important;
}

.dark-mode {
  background-color: #121212;
  color: #e0e0e0;
}

.pause-animations * {
  animation: none !important;
  transition: none !important;
}
#accessToggle {
  position: fixed;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  background: #2272FF;
  color: #fff;
  border: none;
  border-radius: 0 8px 8px 0;
  padding: 12px;
  font-size: 20px;
  z-index: 9999;
  cursor: grab;
   transition: left 0.2s ease, right 0.2s ease, top 0.2s ease;
}


/* ======================================
   Botón flotante de audio ultra tech
====================================== */
#playPause {
    position: fixed;
    bottom: 110px; /* arriba del botón de WhatsApp */
    right: 42px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2272FF, #ff0000);
    color: #fff;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0,0,0,0.6);
    z-index: 1000;
    overflow: visible;
    animation: pulseButton 1.8s infinite ease-in-out;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
}

/* Halo expandible */
#playPause::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle, #5F85DB 0%, transparent 70%);
    opacity: 0.6;
    animation: haloAudio 1.8s infinite ease-in-out;
    top: 0;
    left: 0;
    z-index: -1;
}

/* Hover efecto */
#playPause:hover {
    transform: scale(1.3);
    box-shadow: 0 12px 30px rgba(0,0,0,0.7);
    background: linear-gradient(135deg, #2272FF, #ff0000);
}

/* Pulso interno del botón */
@keyframes pulseButton {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.15); }
    50% { transform: scale(1); }
    75% { transform: scale(1.12); }
}

/* Halo expandible hacia afuera */
@keyframes haloAudio {
    0% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(2);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 0.6;
    }
}

/* Texto informativo */
#musicInfo {
    position: fixed;
    bottom: 170px; /* arriba del botón */
    right: 40px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 10px 15px;
    border-radius: 12px;
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s ease;
    z-index: 1001;
}

/* Cuando se activa */
#musicInfo.show {
    opacity: 1;
}



/* ======================================
   Banner de Instalación de App
====================================== */
.pwa-banner {
    display: flex; /* necesario para animación */
    position: fixed;
    bottom: -100px; /* fuera de la pantalla al inicio */
    left: 50%;
    transform: translateX(-50%);
    background: #1b1c2b;
    color: #fff;
    border-radius: 12px;
    padding: 15px 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    z-index: 9999;
    align-items: center;
    gap: 10px;
    font-family: sans-serif;
    max-width: 90%;
    transition: bottom 0.5s ease, opacity 0.5s ease;
    opacity: 0;
}

.pwa-banner.show {
    bottom: 20px;
    opacity: 1;
}

.pwa-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pwa-logo {
    width: 40px;
    height: 40px;
    border-radius: 5px;
}

.pwa-install-btn {
    background-color: #2272FF;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.pwa-install-btn:hover {
    background-color: #1a5ed8;
}

.pwa-close-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}