body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
    color: #343a40;
    text-align: center;
}

header {
    background-color: #f8f9fa;
    color: white;
    padding: 20px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header img {
    width: 180px;
}

nav {
    background-color: #212529;
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding: 5px 10px;
    transition: color 0.3s ease, background-color 0.3s ease;
}

nav ul li a:hover {
    background-color: #343a40;
    border-radius: 4px;
    text-decoration: none;
}

main {
    margin: 20px;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

footer {
    background-color: #343a40;
    color: white;
    padding: 20px 0;
    box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
    position: absolute;
    width: 100%;
    bottom: 0;
}

footer a {
    color: #6c757d;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: #adb5bd;
    text-decoration: none;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container h1 {
    font-size: 3rem;
}

.container p {
    font-size: 1.5rem;
}

.container a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.container a:hover {
    color: #0056b3;
    text-decoration: none;
}

.row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 0;
}

.col-6 {
    width: 50%;
}

.col-3 {
    width: 25%;
}

.game {
    margin: 20px;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.game h1 {
    font-size: 3rem;
}

.game button {
    padding: 10px 20px;
    font-size: 1.5rem;
    background-color: #049423;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.game button:hover {
    background-color: #0056b3;
}

.game button:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}

.game button:disabled:hover {
    background-color: #6c757d;
}