style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: 0;
}

body {
    background-color: #131417;
    color: white;
    font-family: 'Montserrat', sans-serif;
}

a {
    text-decoration: none;
    color: white;
}

.menu {
    display: flex;
    list-style-type: none;
    margin: 2rem 0 0 2rem;
    font-weight: 500;
}

.menu li {
    margin-right: 2rem;
}

.menu__btn {
    padding: 0.5rem 1rem;
    background-color: rgba(37, 197, 196, 0.2);
    border-radius: 0.25rem;
    border: 1px solid #25C5C4;
}

.menu__btn:hover {
    background-color: rgba(37, 197, 196, 0.5);
    transition: all ease 0.5s;
    box-shadow: 0px 2px 8px  rgba(37, 197, 196, 0.3);
}

.menu__item:hover {
    color: #9c9c9e;
    transition: all ease 0.5s;
}

.hero__title {
    font-size: 4.5rem;
    width: 40%;
    padding-left: 2rem; 
}

.hero {
    display: flex;
    align-items: center;
    height: 88vh;
    justify-content: space-between;
}

.author {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 1rem;
}

.author__media, .author__media-links {
    display: flex;
}

.author__media-links {
    flex-direction: column;
    margin-left: 1rem;
}

.author__media-icon:not(:first-child) {
    margin-top: 1rem;
}

.author__info {
    width: 21rem;
}

.author__name {
    margin-top: 1rem;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.author__bio {
    margin-top: 1rem;
    line-height: 150%;
}

.hero__span {
    background: linear-gradient(135.65deg, #25C5C4 5.48%, #25C59F 81.07%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero__img {
    margin-right: 2rem;

}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 4rem;
    margin: 4rem 0 4rem 2rem;
}

.cards__item {
    height: 420px;
    width: 308px;
    position: relative;
    border-radius: 0.5rem;
    margin-top: 5rem;
    -webkit-filter: grayscale(100%); 
    filter: grayscale(100%);
}

.cards__item:hover {
    box-shadow: 0px 2px 8px rgba(18, 207, 207, 0.5);
    background: #545866;
    transition: all ease 0.4s;
    -webkit-filter: grayscale(0%); 
    filter: grayscale(0%);
}

.cards__img {
    position: absolute;
    left: 1.5rem;
    top: -1.5rem;
    border-radius: 0.5rem;
    height: 288px;
    width: 295px;
}

.author__img {
    border-radius: 0.5rem;
    height: 288px;
    width: 295px;
}

.cards__name {
    margin-top: 17.5rem;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.cards__tag {
    margin-right: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    background-color: rgba(37, 197, 196, 0.2);
    border-radius: 0.25rem;
    border: 1px solid #25C5C4;
    text-transform: lowercase;
}

.cards__media {
    margin: 2rem 0;
    display: flex;
}

.media {
    margin-right: 2rem;
}

.cards__media a:hover { 
    border-bottom: 3px solid #25C59F;
}

.wrapper {
    margin-left: 1.5rem;
}

.reprograma {
    color: #bfacfb;
}

footer {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

@media only screen and (min-width: 320px) and (max-width: 768px) {

    .hero {
        height: 70vh;
    }

    .hero__title {
        font-size: 3.5rem;
    }

    .hero__img {
        display: none;
    }

    .cards {
        display: grid;
        grid-template-columns: 1fr;
       
    }

    .author {
        margin: 5rem 0;
    }
}