.upgrade-message {
    background: #fff3cd;
    color: #856404;
    padding: 15px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
    border: 1px solid #ffeeba;
}

.access-button {
    display: inline-block;
    background: #ffa500;
    color: #fff;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.3s;
}

.access-button:hover {
    background: #ff8700;
}