/* --- General Body & HTML Styling --- */
html, body {
    height: 100%; /* Key for Sticky Footer */
    margin: 0;
    font-family: sans-serif;
    background-color: #f4f4f4;
}

/* --- Main Layout Container (#root) --- */
#root {
    display: flex; /* Key for Sticky Footer */
    flex-direction: column; /* Key for Sticky Footer */
    min-height: 100vh; /* Key for Sticky Footer: Makes it fill the screen */
}

/* --- Main Content Area --- */
main {
    flex-grow: 1; /* Key for Sticky Footer: Pushes footer down */
    padding: 20px;
    background: white;
    margin: 0 20px;
}

/* --- Navigation Bar --- */
nav {
    background: #333;
    color: white;
    padding: 1rem;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
}

nav ul li a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

/* --- Header --- */
header {
    text-align: center;
    padding: 50px 0;
    background: #4a4a4a;
    color: white;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 20px;
    background: #333;
    color: white;
    width: 100%;
}