body, html {
    background-image: url("../img/background.png");
    background-repeat: no-repeat; 
    background-size: cover; 
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column; 
    background-color: gainsboro;
}

#game-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    flex-grow: 1; 
    margin-bottom: 60px; 
    margin-top: 20px;
}

#canvas {
    background-color: black;
    margin-bottom: 20px;
}

#startButton {
    padding: 15px 30px;
    font-size: 20px;
    cursor: pointer;
    background-color: #67c2ae;
    color: #333;
    border: none;
    border-radius: 5px;
    font-weight: bold;
}

#startButton:hover {
    background-color: #41a281;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 20px;
    width: 100%;
    font-size: 16px;
    margin-top: auto;
}

footer p {
    margin: 0; 
    padding: 0;
    line-height: 1.5;
}

footer a:hover {
    text-decoration: underline;
    font-weight: 800;
}

header {
    background-color: rgb(200, 200, 200);
    padding: 21px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between; 
    border-bottom: 1px solid #333;
}

h1 {
    margin: 0;
    font-size: 28px;
    color: #333;
}

nav {
    display: flex;
    gap: 20px; 
}

.nav-link {
    font-size: 18px;
    color: #67c2ae;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #41a281;
}