/* --- Main Container --- */
.container {
    background-color: var(--container-bg);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    width: 100%;
    max-width: 48rem;
    margin: 0 auto;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* --- Navigation --- */
.nav {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.nav-link {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
    margin-left: 1rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    text-decoration: underline;
}