@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@700&family=Lexend+Deca&display=swap');

* {
    box-sizing: border-box;
    margin: 0;
    --gray: hsl(0, 0%, 95%);
    --transparent-white: hsla(0, 0%, 100%, 0.75);
}

html, body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    background-color: var(--gray);
    color: var(--transparent-white);
    font-family: 'Lexend Deca', sans-serif;
    font-size: 15px;
}

.attribution {
    color: black;
    flex: 0;
    text-align: center;
    padding-bottom: 1em;
}

.columns {
    margin: 10% 5%;
    display: flex;
    flex-direction: column;
    flex: 1;
    justify-content: center;
}

.columns > .column:nth-child(1) {
    background-color: #E28525;
}
.columns > .column:nth-child(2) {
    background-color: #016972;
}
.columns > .column:nth-child(3) {
    background-color: #00403F;
}

.columns > .column:first-child {
    border-radius: 10px 10px 0 0;
}
.columns > .column:last-of-type {
    border-radius: 0 0 10px 10px;
}

.columns > .column {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 30px;
    row-gap: 2em;
}

 .column-title {
    font-family: 'Big Shoulders Display', cursive;
    font-weight: 700;
    font-size: 2em;
    color: var(--gray);
}
.columns > .column > .column-body {
    flex: 1;
}

.columns > .column > .column-button {
    align-self: flex-start;
    padding: 1em 2em;
    border: 2px solid white;
    mix-blend-mode: lighten;
    background-color: var(--gray);
    border-radius: 40px;
    cursor: pointer;
}

.columns > .column > .column-button:hover {
    background-color: transparent;
    color: white;
}

@media (min-width: 375px) {
    .columns {
        flex-direction: row;
    }

    .columns > .column:first-child {
        border-radius: 10px 0 0 10px;
    }
    .columns > .column:last-of-type {
        border-radius: 0 10px 10px 0;
    }

}