*, *::before, *::after {
    box-sizing: border-box;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

body {
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 100vh;
    background-color: beige;
}

.main-card {
    width: 800px;
    max-width: 80%;
    border-radius: 5px;
    background-color: white;
    padding: 10px;
    box-shadow: darkblue 0 0 20px 5px;
}

.timer-card {
    background-color: goldenrod;
    border: 1px solid black;
    border-radius: 5px;
    box-shadow: 0 0 10px 2px;
    padding: 20px;
    width: 50%;
    margin: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: darkblue;
    font-size: 20px;
}

.large-font {
    font-size: 50px;
    color: whitesmoke;
    text-decoration: darkblue underline;
}

.btn-grid {
    display: grid;
    grid-template-columns: repeat(2, auto);
    gap: 10px;
    margin: 20px 0;
}

.button {
    background-color: teal;
    border: 1px solid black;
    border-radius: 5px;
    padding: 5px 10px;
    color: white;
    outline: none;
}

.button:hover {
    border-color: white;
}

.button.correct {
    background-color: green;
}

.button.wrong {
    background-color: red;
}

.start-button, .next-button {
    font-size: 30px;
    font-weight: bold;
    padding: 10px 20px;
    margin-bottom: 20px;
}

.button-controls {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hide {
    display: none;
}

.button:hover {
    cursor: pointer;
}