@font-face {
  font-family: "RobotoMono-Light";
  src: url('https://www.muteduck.com/fonts/robotomono/RobotoMono-Light.ttf');
}


* {
    margin: 0;
    padding: 0;
    font-family: 'Calibri';
    font-size: 1em;
    outline: none;
    box-sizing: border-box;
}

html, body {
    background-color: #fff;
    height: 100vh;
    width: 100wh;
}

header {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 20px;

}

header button {
    padding: 10px 20px;
    
}

main {
    width: 1000px;
    margin: 0px auto;

    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr;
}

.column {
    display: flex;
    flex-direction: column;
    width: 270px;
    border: 1px solid #e0e0e0;
}

section h1 {
    width: 200px;
    text-align: center;
    margin: 10px;
}

.column button {
    border: none;
    padding: 10px;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;

    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.column button span {
    font-family: "RobotoMono-Light", 'Calibri';
}