/* Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: 'Courier New', monospace;
    background-color: #c0c0c0;
  }
  
  /* Menú superior estilo Win95 */
  .menu-bar {
    background-color: #e0e0e0;
    border-bottom: 2px solid #808080;
    padding: 4px 10px;
    display: flex;
    gap: 10px;
  }
  
  .menu-item {
    background-color: #d4d0c8;
    padding: 4px 8px;
    border: 1px solid #808080;
    cursor: pointer;
  }
  
  .menu-item:hover {
    background-color: #a0a0ff;
  }
  
  /* Layout */
  .layout {
    display: flex;
    height: calc(100vh - 30px);
  }
  
  
  /* Contenido principal */
  .content-area {
    display: flex;
    flex: 1;
    padding: 10px;
    gap: 20px;
    margin-left: 160px;
  }
  
  .column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  
  .column-header {
    background-color: #000080;
    color: white;
    padding: 5px 10px;
    font-weight: bold;
    margin-bottom: 5px;
  }
  .nav-bar {
    position: fixed;
    left: 0;
    top: 40px; /* debajo del menú superior */
    width: 160px;
    height: calc(100% - 30px);
    background-color: #000080;
    display: flex;
    flex-direction: column;
    padding: 10px;
    gap: 10px;
    z-index: 999;
  }
  
  .nav-link {
    color: white;
    text-decoration: none;
    background-color: #000080;
    font-family:monospace;
    padding: 8px;
    border: 2px outset #ffffff;
    text-align: center;
    
  }
  
  .nav-link:hover {
    background-color: #3333aa;
    border: 2px inset #ffffff;
  }
  
  /* Ventanas de contenido */
.window-box {
    border: 2px outset #fff;
    background-color: #e0e0e0;
    padding: 10px;
    height:max-content;
    margin-bottom: 10px;
   
  }
  
.window-box img {
  width: 100%;
  height: 300px;
  object-fit: contain; /* fuerza deformación para que ocupe el tamaño exacto */
  border: 0px inset #000;
  margin-bottom: 10px;
  
}

  /* Ventana emergente 
  .popup {
    width: 300px;
    background-color: #e0e0e0;
    border: 2px outset #fff;
    position: absolute;
    top: 100px;
    left: 100px;
    display: none;
    z-index: 1000;
  }
  
  .popup-header {
    background-color: #000080;
    color: white;
    padding: 4px 10px;
    cursor: move;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    user-select: none;
  }
  
  .popup-header button {
    background: none;
    border: none;
    color: white;
    font-weight: bold;
    cursor: pointer;
  }
  
  .popup-body {
    padding: 20px;
    text-align: center;
  }