/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
  }
  
  body {
    background-color: #111;
    color: #eee;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }
  
  /* Header */
  .header {
    background: #000;
    color: #fff;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 3px solid pink;
  }
  
  .logo span {
    color: orange;
  }
  
  .nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
  }
  
  .nav a {
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
  }
  
  .nav a:hover {
    color: orange;
  }
  
  /* Contenido dinámico */
  #content {
    background: url("../img/imagen1.jpg") no-repeat;
    background-size: cover;
    flex: 1;
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease-in-out;
  }
  
  .fade-out {
    opacity: 0;
  }
  
  .fade-in {
    opacity: 1;
  }
  
  /* Footer */
  .footer {
    background: #000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    color: #aaa;
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
  }
  
  .social-icons {
    display: flex;
    gap: 1rem;
  }
  
  .social-icons img {
    width: 14px;
    height: 14px;
    filter: invert(1); /* para que los íconos SVG se vean en blanco */
    transition: transform 0.3s, filter 0.3s;
  }
  
  .social-icons img:hover {
    transform: scale(1.2);
    filter: invert(50%) sepia(100%) saturate(500%) hue-rotate(-20deg); /* efecto naranja */
  }
  
  
  /* Secciones */
  .section {
    max-width: 800px;
    text-align: center;
  }
  
  .section h2 {
    font-size: 2rem;
    color: orange;
    margin-bottom: 1rem;
  }
  
  .section p {
    margin-bottom: 1rem;
    line-height: 1.6;
  }

 /* ===== Portafolio ===== */
.portfolio-container {
  display: flex;
  justify-content: center; /* centra todas las tarjetas */
  gap: 20px; /* margen entre tarjetas */
  flex-wrap: wrap; /* baja a otra línea en pantallas pequeñas */
  margin-top: 2rem;
}

.portfolio-card {
  flex: 1 1 200px; /* ancho base 200px, se puede achicar o crecer */
  max-width: 250px; /* para que no sean demasiado grandes */
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  overflow: hidden;
  cursor: pointer;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  margin-bottom: 10px;
}

.portfolio-card:hover {
  transform: translateY(-5px);
}

.portfolio-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  border-bottom: 2px solid #eee;
  transition: transform 0.3s ease;
}

.portfolio-card h3 {
  margin: 15px 0 10px;
  font-size: 18px;
  text-align: center;
  color: #000;
}

.portfolio-card p {
  color: #000;
}

.card-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  padding: 0 15px;
  transition: max-height 0.5s ease, opacity 0.5s ease;
}

.portfolio-card.active .card-content {
  max-height: 200px;
  opacity: 1;
  margin-bottom: 15px;
}

/* Responsivo: apilar tarjetas en móviles */
@media (max-width: 900px) {
  .portfolio-container {
    flex-direction: column;
    align-items: center;
  }
}



  
  /* Responsivo */
  @media (max-width: 768px) {
    .nav ul {
      flex-direction: column;
      gap: 1rem;
    }
  }