body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
    background-image: url("data:image/svg+xml,%3Csvg width='6' height='6' viewBox='0 0 6 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%239C92AC' fill-opacity='0.1'%3E%3Cpath d='M5 0h1L0 6V5zM6 5v1H0V5z'/%3E%3C/g%3E%3C/svg%3E");
    margin: 0;
}

body.dark-mode {
    background-color: #282c34;
    background-image: url("data:image/svg+xml,%3Csvg width='6' height='6' viewBox='0 0 6 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%239C92AC' fill-opacity='0.1'%3E%3Cpath d='M5 0h1L0 6V5zM6 5v1H0V5z'/%3E%3C/g%3E%3C/svg%3E");
    color: #f0f0f0; /* Light text for dark mode */
}

#theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    font-size: 16px;
}

body.dark-mode #theme-toggle {
    background-color: #61afef;
    color: #282c34;
}