body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #111;
    color: #fff;
    transition: background-color 0.3s ease;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-bottom: 20px;
}

.header-link {
    text-decoration: none;
    color: #fff;
    transition: color 0.3s ease;
}

.header-link:hover {
    color: #00a0a0;
}

.page-selection {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    margin: 0;
}

.page-selection li {
    margin: 0 10px;
}

.page-selection a {
    text-decoration: none;
    color: #fff;
    transition: color 0.3s ease;
}

.page-selection a:hover {
    color: #00a0a0;
}

.content {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 20px;
}

.button-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.pitch-button {
    font-size: 24px;
    padding: 15px 30px;
    margin: 10px;
    background-color: #00a0a0;
    border: none;
    color: #fff;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 200px;
}

.pitch-button:hover {
    background-color: #008080;
}

body.dark-mode {
    background-color: #222;
}

body.dark-mode header {
    background-color: #444;
}

body.dark-mode .header-link {
    color: #ddd;
}

body.dark-mode .header-link:hover {
    color: #00a0a0;
}

body.dark-mode .page-selection a {
    color: #ddd;
}

body.dark-mode .page-selection a:hover {
    color: #00a0a0;
}

body.dark-mode .pitch-button {
    background-color: #008080;
}

body.dark-mode .pitch-button:hover {
    background-color: #006060;
}