estilos.css

:root{
    --font-family-title:'Linux Libertine', serif;
    --font-familiy-content: arial;
    --blue-color: #36c;
    --gray-border-color: #a2a9b1;
    --gray-text-color: #54595d;
    --gray-background-color: #f8f9fa;
}

*{
    margin: 0px;
    padding: 0px;
}

/*HEADER*/

.header{
    color: black;
    text-align: center;
    margin-top: 50px;
    margin-bottom: 10px;
}

.header .header-image{
    width: 170px;
    margin-bottom: 5px;
}

.header h2{
    font-size: 16px;
    font-weight: 100;
}

/*HEADER*/

/*main section*/

.main-section{
    height: 340px;
    font-family: var(--font-familiy-content);
    display: flex;
    justify-content: center;
}

.main-section-containers {
    display: grid;
    text-align: center;
    grid-template-columns: 10px repeat(7, 70px) 10px; 
    grid-template-rows: repeat(5, 65px);
    
} 


.main-content h1 a {
    text-decoration: none; 
    font-size: 16px;
    color: var(--blue-color);

}

.main-content h1 a:hover {
    text-decoration: underline;
}

.main-content p {
    font-size: 12px;
    color: var(--gray-text-color);
}

.main-content:nth-child(1) {
    grid-column: 3 / span 2;
    justify-self: start;
}

.main-content:nth-child(2) {
    grid-column: 2 / span 2;
    justify-self: start;
}

.main-content:nth-child(3) {
    grid-column: 1 / span 3;
    justify-self: start;
}

.main-content:nth-child(4) {
    grid-column: 2 / span 2;
    justify-self: start;
}

.main-content:nth-child(5) {
    grid-column: 3 / span 2;
    justify-self: start;
}

.main-content:nth-child(6) {
    grid-row: 1;
    grid-column: 6 / span 2;
    justify-self: end;
}

.main-content:nth-child(7) {
    grid-row: 2;
    grid-column: 7 / span 2;
    justify-self: end;
}

.main-content:nth-child(8) {
    grid-row: 3;
    grid-column: 7 / span 3;
    justify-self: end;
}

.main-content:nth-child(9) {
    grid-row: 4;
    grid-column: 7 / span 2;
    justify-self: end;
}

.main-content:nth-child(10) {
    grid-row: 5;
    grid-column: 6 / span 2;
    justify-self: end;
}

.main-logo{
    grid-row: 2 / 5;
    grid-column: 4 / 7;
}

.main-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.search-form{
    display: flex;
    align-content: center;
    justify-content: center;
    height: 45px;
}

.search-container {
    border: 1px solid var(--gray-border-color);
    border-radius: 2px 0px 0px 2px;
    display: flex;
    align-items: center;
    padding: 8px;
    width: 400px;
}

.search-container input {
    border: none;
    outline: none;
    width: 100%;
    
}

.search-container p {
    font-family: var(--font-familiy-content);
    color: var(--gray-text-color);
    justify-content: right;
    font-size: 15px;
    padding: 14px;
}
/**/
section {
    margin-bottom: 30px;
}
.search-container {
    
    background-image: url("images/down-arrow.png");
    background-repeat: no-repeat;
    background-position: 98% 50%; 
    background-size: 3%;
    padding-right: 4px;
    
}

div .form-picker-icon {
   padding: 4px;
   
}

.main-button {
    background-color: var(--blue-color);
    border: none;
    cursor: pointer;
    border-radius: 0 2px 2px 0;
    background-image: url("images/search.png");
    background-repeat: no-repeat;
    background-size: 30%;
    padding: 5px;
    background-position: center;
    display: flex;
    width: 60px;
}

button .form-search-icon {
    width: 22px;
    height: 22px;
}

/*language button*/

.language-section{
    display: flex;
    margin-top: 30px;
    justify-content: center;
    align-items: center;
    
}

.language-button {
    display: flex;
    padding: 5px;
    justify-content: center;
    align-items: center;
    background-color: var(--gray-background-color);
    border: 1px solid var(--gray-border-color);
    border-radius: 2px;    
}

.language-button a {
    text-decoration: none;
    color: var(--gray-text-color);
}

.language-button a:hover {
    text-decoration: underline;
    color: var(--blue-color);
}


.language-button p {
    padding: 3px;
    justify-content: center;
}

.language-button img {
    height: 20px;
    padding: 3px;
}

.language-button .down-arrow{
    height: 12px;
    padding: 3px;
}

.language-section .line {
    width: 120px;
    border: 1px solid var(--gray-border-color);
    margin-right: 10px;
    
}

.language-section .line2 {
    width: 120px;
    border: 1px solid var(--gray-border-color);
    margin-left: 10px;
    
}

.large-line {
    display: flex;
    height: 0.1px;
    background-color: var(--gray-border-color);
}

.links-list{
    margin-top: 40px;
    display: flex;
    display: grid;
    grid-template-columns: 30% repeat(3, 1fr);
    /*grid-template-columns: repeat(4, 230px);*/
    grid-gap: 2em 4em;
    justify-content: center;
    align-items: center;
    font-family: var(--font-familiy-content);
    font-size: 12px;
    color: var(--gray-text-color);
    margin-left: 10%;
    margin-right:  10%;
     
}

.links-list-container {
    display: flex;
   padding: 8px;
    width: fit-content;
}


.links-list-container .links-icon {
    height: 38px;
    margin-right: 10px;
    display: inline;
}

.links-list-container .links-title {
    color: var(--blue-color);
    font-size: 12px;
    font-family: var(--font-familiy-content);
    margin: 3px;
}

.links-list-container:nth-child(1) {
    grid-column: 1 / 2;
    
}

.links-list-container:nth-child(2) {
    width: fit-content;
    grid-column: 1;
    grid-row: span 2 / span 4;
    background-color: var(--gray-background-color);
}

.links-list-container .detail-apps {
    display: flex;
    margin-top: 15px;
}

.detail-apps .img-apps1 {
    height: 50px;
}

.detail-apps .img-apps2 {
    margin-top: 7px;
    height: 35px;
    
}

.links-list-container:nth-child(3) {
    grid-column: 2;
    grid-row: 1;
}

.links-list-container:nth-child(4) {
    grid-column: 2;
    grid-row: 2;
}

.links-list-container:nth-child(5) {
    grid-column: 2;
    grid-row: 3;
}

.links-list-container:nth-child(6) {
    grid-column: 2;
    grid-row: 4;
}

.links-list-container:nth-child(7) {
    grid-column: 3;
    grid-row: 1;
}

.links-list-container:nth-child(8) {
    grid-column: 3;
    grid-row: 2;
}

.links-icon2 {
    height: 25px;
    padding-right: 5px;
}

.links-list-container:nth-child(9) {
    grid-column: 3;
    grid-row: 3;
}

.links-list-container:nth-child(10) {
    grid-column: 3;
    grid-row: 4;
}

.links-list-container:nth-child(11) {
    grid-column: 4;
    grid-row: 1;
}

.links-list-container:nth-child(12) {
    grid-column: 4;
    grid-row: 2;
}

.links-list-container:nth-child(13) {
    grid-column: 4;
    grid-row: 3;
}

.links-list-container:nth-child(14) {
    grid-column: 4;
    grid-row: 4;
}

/*FOOTER*/

footer {
    font-family: var(--font-familiy-content);
    color: var(--gray-text-color);
    display: flex;
    justify-content: space-evenly;
    height: 40px;
    font-size: 12px;
}

footer ul {
    display: flex;
}

footer li {
    display: inline;
    padding-left:6px;
    padding-right:6px;
    cursor: pointer;
}

footer a {
    text-decoration: none;
    color: var(--blue-color);
}