nao encontro o erro

alguem por favor diz onde esta meu erro . meu projeto: https://prntscr.com/rzfx7w

meu css:

.destaques{
    display: grid;
    grid-gap: 2rem;
    grid-template-columns: 25% 25% 25% 25%;
    grid-template-rows: 33.33% 33.33% 33.33%;
    height: calc(100vh - 50px);
}

.destaques__titulo {
    background: rgba(0, 0, 0, .5);
    color: #fdfdfd;
    padding: .6rem;
    text-align: center;
    width: 100%;
}

.destaques__principal{
    background-image: url("../img/fortnite.jpg");
    grid-column-start: 1 ;
    grid-column-end: 4;
    grid-row-start:1 ;
    grid-row-end: 3;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.destaques__secundario:nth-child(2){
    background-image: url("../img/pubg.jpg");
    grid-column-start: 4 ;
    grid-column-end: 4;
    grid-row-start:1 ;
    grid-row-end: 1;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;

}

.destaques__secundario:nth-child(3){
    background-image: url("../img/slack.png");
    grid-column-start: 4 ;
    grid-column-end: 4;
    grid-row-start:2 ;
    grid-row-end: 2;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.destaques__secundario:nth-child(4){
    background-image: url("../img/whatsapp.png");
    grid-column-start: 4 ;
    grid-column-end: 4;
    grid-row-start:3 ;
    grid-row-end: 3;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}



.destaques__secundario:nth-child(5){
    background-image: url("../img/cs-go.jpg");
    grid-column-start: 3 ;
    grid-column-end: 3;
    grid-row-start:3 ;
    grid-row-end: 3;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.destaques__categorias{
    grid-column-start: 1;
    grid-column-end: 3;
    grid-row-start: 3;
    grid-row-end: 3;

}

.destaques__categorias___lista{
    display: flex;
    flex-wrap: wrap;
    height: 100%;
    justify-content: space-between;


}

* .detaques__categorias___item{
    align-items: center;
    background: #fdfdfd;
    border-left: 5px solid transparent;
    color :#333333;
    display: flex;
    padding: 1rem;
    width: 50%;

} 

.destaques__categorias___link {
    color: inherit;
}

do professor

.caixa {
    align-items: flex-end;
    display: flex;
    justify-content: center;
}

.destaques {
    display: grid;
    grid-gap: 2rem;
    grid-template-columns: 25% 25% 25% 25%;
    grid-template-rows: 33.33% 33.33% 33.33%;
    height: calc(100vh - 50px);
}

.destaques__titulo {
    background: rgba(0, 0, 0, .5);
    color: #fdfdfd;
    padding: .6rem;
    text-align: center;
    width: 100%;
}

.destaques__principal {
    background: url('../img/fortnite.jpg') center / cover no-repeat;
    grid-column: 1 / 4;
    grid-row: 1 / 3;
}

.destaques__secundario:nth-child(2) {
    background: url('../img/pubg.jpg') center / cover no-repeat;
    grid-column: 4 / 4;
    grid-row: 1 / 1;
}

.destaques__secundario:nth-child(3) {
    background: url('../img/slack.png') center / cover no-repeat;
    grid-column: 4 / 4;
    grid-row: 2 / 2;
}

.destaques__secundario:nth-child(4) {
    background: url('../img/whatsapp.png') center / cover no-repeat;
    grid-column: 4 / 4;
    grid-row: 3 / 3;
}

.destaques__secundario:nth-child(5) {
    background: url('../img/cs-go.jpg') center / cover no-repeat;
    grid-column: 3 / 3;
    grid-row: 3 / 3;
}

.destaques__categorias {
    grid-column: 1 / 3;
    grid-row: 3 / 3;
}

.destaques__categorias___lista {
    display: flex;
    flex-wrap: wrap;
    height: 100%;
    justify-content: space-between; 
}

.destaques__categorias___item {
    align-items: center;
    background: #fdfdfd;
    border-left: 5px solid transparent;
    color: #333333;
    display: flex;
    padding: 1rem;
    width: 50%;
}

.destaques__categorias___link {
    color: inherit;
}

obs : eu so nao tenho a classe caixa , pq ate onde eu vi ele nao tinha feito ela e mesmo assim os links estavam um embaixo do outro. e os items nao estavam