style.css

* {
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #6a5acd;
    --color-secondary: #16161B;
}

body {
    width: 100vw;
    height: 100vh;
    font-family: 'Nunito', sans-serif;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-secondary);
}

.card-container {
    width: 350px;
    height: 450px;
    background-color: #fff;
    border-radius: 10px;
}

.card-container:hover, .card-container:hover .bottom {
    transition: .8s ease;
    background: var(--color-primary);
    color: #fff;
}

.card-container:hover .btn, .card-container:hover h4, .card-container:hover h3, .card-container:hover p {
    transition: .4s ease;
    color: #fff;
}

.top {
    height: 80px;
    border-radius: 6px;
    background-color: var(--color-primary);
    display: flex;
    justify-content: center;
}

.image-container {
    background-color: #fff;
    width: 100px;
    height: 100px;
    padding: 5px;
    border-radius: 50%;
    margin-top: 25px;
}

.image-container img {
    background-color: #fff;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    transition: ease 2s;
}

.image-container:hover {
    transform: scale(1.05);
}

.bottom {
    background-color: #fff;
    padding: 20px;
    padding-top: 80px;
    line-height: 35px;
    text-align: center;
}

.bottom h3 {
    line-height: 1.4;
    color: var(--color-secondary);
    margin-top: 5px;
    font-size: 1.8rem;
}

.bottom h4 {
    line-height: 1;
    font-size: 1.4rem;
    color: var(--color-primary);
}

.bottom p {
    color: var(--color-secondary);
    font-size: 1.2rem;
    line-height: 3;
    margin-bottom: 30px;
}

.btn {
    background: none;
    text-decoration: none;
    padding: 14px 30px;
    color: var(--color-primary);
    font-size: 1rem;
    text-transform: uppercase;
    font-weight: bold;
    border: none;
    border-radius: 30px;
}

.btn:hover {
    border: 1px solid #fff;
}