:root {
    --Red: hsl(0, 78%, 62%);
    --Cyan: hsl(180, 62%, 55%);
    --Orange: hsl(34, 97%, 64%);
    --Blue: hsl(212, 86%, 64%);
    --Grey-500: hsl(234, 12%, 34%);
    --Grey-400: hsl(212, 6%, 44%);
    --White: hsl(0, 0%, 100%);

    --font-family: 'Poppins', sans-serif;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
}

main {
    padding: 4rem 2rem;
    height: auto;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: center;

}
header {
    text-align: center;
    max-width: 32rem;
    margin-bottom: 4rem;
}
.first-h1 {
    font-size :30px;
    font-weight: 300;
    color : var(--Grey-400); 
    margin-bottom: .5rem;
    
}
.second-h1 {
    font-size : 30px;
    color : var(--Grey-500);
    margin-bottom: 1rem;
}

p {
    color: var(--Grey-400);
    font-weight: 100;
}
.cards-container {
    padding: 0 5rem;
    display: grid;
    grid-template-columns: repeat(3,1fr);
    grid-template-rows: repeat(4,1fr);
    grid-template-areas: 
      ". builder ."
      "supervisor builder calculator"
      "supervisor karma calculator"
      ". karma .";
    gap : 2rem;
}
.card {
    max-width: 22rem;
    padding: 2rem;
    border-radius: .5rem;
    transition: all 0.2s ease-in-out;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
    h3 {
        color : var(--Grey-500);
        font-weight: 700;
        margin-bottom: .5rem;
    }
    img {
        float: right;
        margin : 2rem 1rem 0 0;
    }
}
.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 20px black;
}

.card-supervisor {
    grid-area: supervisor;
    border-top: .3rem solid var(--Blue);
}
.card-karma {
    grid-area: karma;
    border-top: .3rem solid var(--Orange);
}
.card-builder {
    grid-area: builder;
     border-top: .3rem solid var(--Red);
}
.card-calculator {
    grid-area: calculator;
    border-top: .3rem solid var(--Blue);
}

@media (max-width : 1000px) {
    .cards-container {
        padding: 0;
        grid-template-columns: 1fr 1fr;
        grid-template-areas: 
        "supervisor builder"
        "karma calculator";
    }
}

@media (max-width : 650px) {


    .first-h1,.second-h1 {
        font-size: 24px;
    }

    .cards-container {
        padding: 0;
        grid-template-columns: 1fr;
        grid-template-areas: 
        "supervisor"
        "builder"
        "karma"
        "calculator" ;
    }
    .card {
        max-width: none;
    }
}