style.css

* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #2c2836;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.text-space {
    margin: 5px 0 5px 0;
}

.text-white {
    color: aliceblue;
}

.day-challenge {
    width: 50px;
    height: 50px;
    text-align: center;
    background-color: rgb(196, 37, 37);
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
}

.card-title {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    align-items: center;
}

a {
    text-decoration: none;
}

.title {
    font-size: 2em;
    color: rgb(8, 248, 28);
}

.card-description {
    color: #f8f8f2;
    font-size: 20px;
    font-weight: 300;
    line-height: 24px;
    font-family: sans-serif;
}

/* Global */

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header {
    width: 100%;
    height: 30vh;
    margin: 0 0 20px 0;
    background-color: rgb(33, 6, 59);
    justify-content: center;
    box-shadow: -8px 4px 34px 4px rgba(0, 0, 0, 0.09);
}

.header-description {
    padding: 0 10px 0 10px;
    text-align: center;
}

.btn {
    background-color: rgb(44, 44, 44);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 5px 10px;
    border-radius: 10px;
    color: #fff;
    gap: 10px;
    margin-top: 10px;
}

.project-card {
    width: 700px;
    height: 100px;
}

@media screen and (max-width: 600px) {
    .project-card {
        width: auto;
        height: auto;
        padding: 10px;
    }

    a {
        font-size: 1.2em;
    }

    .day-challenge {
        width: 30px;
        height: 30px;
    }

    .card-description {
        font-size: 16px;
    }
}