@media (min-width: 900px) {
  .menu-toggle {
    display: none;
  }

  .header-logo-container {
    width: 10rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 10%;
  }

  .container-list {
    display: flex;
    padding: 0;
  }

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

  .nav-list li {
    list-style: none;
    font-weight: bold;
  }

  .nav-list li a {
    text-decoration: none;
  }

  .nav-list li a:link {
    color: #000;
  }

  .nav-list li a:visited {
    color: #000;
  }

  .nav-list li a:hover {
    color: var(--color-primary);
  }

  .main-header {
    display: flex;
    justify-content: space-between;
    padding: 0 4rem 0 0;
    background-color: var(--bg-primary);
    position: fixed;
    height: 4rem;
    max-height: 4rem;
  }

  .banner-zigma {
    background-image: url(./images/banner-zigma2\ 1.jpg);
    background-size: cover;
    background-position: center right;
    width: 100%;
    min-width: 100%;
    min-height: 18rem;
    max-height: 25rem;
    aspect-ratio: 4 / 1;
    display: flex;
    padding-left: 5%;
    margin-bottom: 1.5rem;
  }

  .banner-zigma p {
    color: var(--bg-primary);
  }

  .container-paragraphs {
    width: 45%;
    min-width: 42rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 5rem 5% 0 2%;
  }

  .container-paragraphs .paragraph-financing {
    color: #ffffff;
    font-size: 2rem;
    margin: 0;
    text-align: start;
    max-width: 32rem;
  }

  .container-paragraphs .paragraph-education {
    color: #ffffff;
    font-size: 1rem;
    margin: 0;
    text-align: start;
    max-width: 35rem;
  }

  .main-container-middle {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
  }

  .hr-we {
    margin-left: 0.1rem;
    width: 3.7rem;
    height: 0.4rem;
  }

  .section-about-us-image {
    order: 1;
    margin-left: 3rem;
    background-image: url("./images/students.jpg");
  }

  .section-about-us-text {
    padding-left: 6rem;
    max-width: 40rem;
  }

  .section-about-us-text p {
    text-align: start;
    padding: 0;
  }
  
  .section-how-operate-image {
    margin-right: 3rem;
    background-image: url("./images/textPC.jpg");
  }

  .section-how-operate-image button {
    margin-left: 1rem;
    cursor: pointer;
  }

  .section-how-operate-text {
    padding-left: 6rem;
    max-width: 37rem;
  }

  .section-how-operate-text p {
    text-align: start;
    padding: 0;
  }

  .title-how {
    padding: 0 2rem;
  }

  .hr-how {
    margin-left: 0.1rem;
    width: 3.9rem;
    height: 0.4rem;
  }

  .container-section-allies {
    height: 16rem;
  }

  .container-logos {
    display: flex;
    padding: 2rem 6rem 0;
    margin-bottom: 0;
  }

  .container-section-annual-reports {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: flex-end;
    min-height: 25rem;
  }

  .content-annual-reports {
    padding:0 0 0 6rem;
  }

  .hr-reports {
    margin: 4rem 0 0 0.1rem;
    width: 4rem;
    height: 0.4rem;
  }

  .title-reports {
    text-align: start;
  }

  .paragraphs-reports {
    text-align: start;
    max-width: 35rem;
  }

  .container-img {
    order: 1;
    max-height: 100%;
    background-image: url("./images/stadistics.jpg");
    aspect-ratio: 5 / 3;
    margin-left: 3rem;
  }

  .container-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 13rem;
    margin: 0 0 3.5rem 0;
  }

  .container-buttons button {
    width: 100%;
    cursor: pointer;
    background-color: var(--color-secondary);
    color: var(--bg-primary);
    font-weight: bold;
    font-size: 1.2rem;
    border: none;
    border-radius: 0.5rem;
    padding: 0.8rem 1.1rem;
  }

  .container-buttons button:hover {
    background-color: var(--color-primary);
  }

  .hr-centers {
    width: 4rem;
    height: 0.4rem;
  }

  .paragraph {
    margin-bottom: 3rem;
  }

  .container-background {
    width: 35rem;
    padding: 2.5rem 0;
  }

  .container-contact {
    padding-top: 2rem;
  }

}