:root{
    /*-------------- FONT FAMILY --------------*/
    --font-family-primary:"Big Shoulders", sans-serif;
    --font-family-secondary:"Lexend Deca", sans-serif;

    /*-------------- FONT SIZE --------------*/
    --font-size-lg:3rem;
    --font-size-md:1.5rem;
    --font-size-sm:1.2rem;

    /*-------------- FONT WEIGHTS --------------*/
    --font-weight-regular:300;
    --font-weight-bold:600;

    /*-------------- LINE HEIGHTS --------------*/
    --line-height-tight:1.5;

    /*-------------- COLORS --------------*/
    /*--------- PRIMARY ---------*/
    --primary-1:hsl(31, 77%, 52%);
    --primary-2:hsl(184, 100%, 22%);
    --primary-3:  hsl(179, 100%, 13%);

    /*--------- NEUTRALS ---------*/
    --white: hsl(0, 0%, 95%);
    --grey: hsla(0, 0%, 100%, 0.75);
    

}

html {
    font-size: 62.5%;  /* 62.5% * 16px = 10px*/
}

/*---- BROWSER RESETS -------*/
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body{
    background-color: var(--white);
    font-family: var(--font-family-secondary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;

}

.main-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    max-width: 800px;
    width: 90%;
    border-radius: 1rem;
    overflow: hidden;
}  

.cards {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    padding: 3rem;
}

.card-1 {
    background-color: var(--primary-1);
}

.card-2 {
    background-color: var(--primary-2);
}

.card-3 {
    background-color: var(--primary-3);
}

.card-icon {
    width: 5rem;
}

.card-heading {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-family-primary);
    color: var(--white);
}

.card-paragraph {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-tight);
    color: var(--grey);
}

.learn-more-button {
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-regular);
    background-color: var(--white);
    padding: 1rem 2rem;
    border-radius: 5rem;
    margin-top: 3rem;
}

.learn-more-button:hover, .learn-more-button:active {
    color: var(--white);
    border: 1px solid var(--white);
}

.button-1{
    color: var(--primary-1);
}

.button-1:hover, .button-1:active {
     background-color: var(--primary-1);
}

.button-2{
    color: var(--primary-2);
}

.button-2:hover, .button-2:active {
     background-color: var(--primary-2);
}

.button-3{
    color: var(--primary-3);
}

.button-3:hover, .button-3:active {
     background-color: var(--primary-3);
}

.attribution{
    font-size: var(--font-size-md);
}

.attribution a{
    text-decoration: none;
}

.attribution a:link, .attribution a:visited {
    text-decoration: none;
    color: var(--primary-3);
}

.attribution a:hover, .attribution a:active {
    text-decoration: underline;
    color: var(--primary-1);
}


@media(max-width: 30rem) {

    .main-container {
        grid-template-columns: 1fr;
    }

    .learn-more-button {
        margin-top: 2rem;
    }
    
}