*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --very-dark-blue: #0a0a23;
    --white: #ffffff;
    --yellow: #f1be32;
    --golden-yellow: #feac32;
}

body {
    background-color: var(--very-dark-blue);
    text-align: center;
    color: var(--white);
}

h1 {
    margin: 15px 0 20px;
}

.btn {
    cursor: pointer;
    width: 100px;
    margin: 10px;
    color: var(--very-dark-blue);
    background-color: var(--golden-yellow);
    background-image: linear-gradient(#fecc4c, #ffac33);
    border-color: var(--golden-yellow);
    border-width: 3px;
}

.btn:hover {
    background-image: linear-gradient(#ffcc4c, #f89808);
}

.rules-container {
    padding: 10px 0;
    margin: auto;
    border-radius: 15px;
    border: 5px solid var(--yellow);
    background-color: var(--white);
    color: var(--very-dark-blue);
}

.rules-container ul {
    list-style-type: none;
}

.rules-container p {
    margin: 10px 0;
}

@media (min-width: 760px) {
    .rules-container {
        width: 60%;
    }
}

.score-container {
    display: flex;
    justify-content: space-around;
    margin: 30px 0;
    font-size: 1.2rem;
}

.score {
    font-weight: 500;
}

.results-container {
    font-size: 1.3rem;
    margin: 15px 0;
}

#winner-msg {
    margin-top: 25px;
}

#reset-game-btn {
    display: none;
    margin: 20px auto;
}