body {
    margin: 0;
    font-family: Arial, sans-serif;
}

nav {
    background-color: #333;
    color: white;
    padding: 0.5em 1em;
}

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

nav li {
    margin-right: 1em;
}

nav a {
    color: white;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

.container {
    padding: 2em;
    margin-top: 0;
}

.messages-container {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    width: min(600px, calc(100% - 2rem));
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 1050;
}