*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Roboto", Sans-serif;
    user-select: none;
}

:root{
    scroll-behavior: smooth;
    --color-beige: rgb(255, 230, 200);
    --color-dark-gray: rgb(76, 76, 76);
    --color-gray-dark: rgb(76, 76, 76);
    --color-gray: rgb(122, 122, 122);
    --color-white: rgb(255, 255, 255);
    --color-black-blue: rgb(51, 65, 85);
    --color-black: rgb(0, 0 ,0);
    --color-gray-black: #24292f;
    --color-red: rgb(146, 8, 4);
    --color-yellow: rgb(255, 240, 0);
    --color-gradiant-main: linear-gradient(90deg, rgba(244,31,31,1) 4%, rgba(135,4,15,1) 100%); 
    --color-blue: #007BFF;
    --color-blue-dark: #0056b3;
    --transparent-background: rgba(0, 0, 0, 0);
    --background-color-main: rgb(249, 249, 249);  
    --another-background-main: rgb(240, 241, 247);
    
    /*font-size pc*/
    
    --title-pc: 2rem;
    --subtitle-pc: 1.625rem;
    --text: 1rem;
    --line-height-pc: 2rem;
    
    /*font-size movile */
    --title-movil: 1.375rem;
    --subtitle-movil: 1.125rem;
    --line-height-movil: 1.625rem;
    
}

body{
    font-family: "Roboto", Sans-serif;
    background-color: var(--color-white);
    overflow-x: hidden;
    font-size: 16px;
}

main{
    background-color: var(--another-background-main);
}

#menu-container--.scrolled {
    background-color: var(--color-white);
    color: var(--color-black);
    height: 15%;
    transition: 0.6s;
}

#menu-container--.scrolled .main-logo-p p, #menu-container--.scrolled img#return_to_index, #menu-container--.scrolled li.menu-item, #menu-container--.scrolled a.link, #menu-container--.scrolled .menu-btn, #menu-container--.scrolled .img-movile img, #menu-container--.scrolled .a-img img{
    color: var(--color-black);
    filter: none;
    transition: 0.6s;
}


#menu-container--.scrolled .menu-n-m{
    transition: 0.6s;
    top: 15%;
}



#menu-container--.scrolled #submenu2 {
    transition: 0.6s;
    margin-top: 4.5rem;
}

#menu-container--.hidden {
    opacity: 0; 
    transform: translateY(-100%); 
    visibility: hidden; 
    pointer-events: none; 
}


.menu-n-m, .menu-n-m-toggle-1, .menu-n-m-toggle-3 {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.6s ease-in-out, opacity 0.6s ease-in-out;
}

.menu-n-m.show {
    max-height: 100vh; 
    overflow-y: scroll;
    opacity: 1;
}

.menu-n-m-toggle-1.show, .menu-n-m-toggle-3.show {
    max-height: 100%;
    opacity: 1;
}

#menu-svg-mobile-X {
    display: none;
}



.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff; 
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999; 
  }
  
  .loader::before {
    content: '';
    border: 8px solid #f3f3f3; 
    border-top: 8px solid #3498db; 
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
  }
  
  .item.slider img {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
    clip: rect(0, 0, 0, 0);
    overflow: hidden;
}
  /* Animación de rotación */
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }
  
  .line--{
      height: 0.1rem;
      background-color: var(--color-black);
      width: 90vw;
      margin: 0 auto;
  }

  .copyR{
      font-size: 1rem;
      margin: 1rem;
      text-align: center;
  }

#return_to_index{
    cursor: pointer;
}
 
  @keyframes back {
    0%{
        background-color: rgba(255,0,0,1);
    }


    50%{
        background-color: rgba(151,0,0,1);
    }

    100%{
    background: linear-gradient(90deg, rgba(255,0,0,1) 9%, rgba(151,0,0,1) 92%);
    }
}

@media (min-width: 1030px) and (max-width: 1920px) {

#menu-container--.scrolled .img-main-logo {
    width:5rem;
    height: 5rem;
}

}



.hidden-element {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.visible {
    opacity: 1;
    transform: translateX(0);
}