/* --- General Reset & Night Theme --- */
body {
    background-color: #121212; /* Very dark background */
    color: #e0e0e0; /* Light gray text for eye comfort */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    min-height: 100vh;
}