#spa-overlay {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100% - 70px);
    background: rgba(255,255,255,0.96);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.spa-form-container {
    background: white;
    border: 1px solid #ccc;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    padding: 30px;
    max-width: 600px;
    width: 100%;
    text-align: left;
}
.spa-heading {
    font-size: 16pt;
    color: gray;
    margin-bottom: 20px;
}
#spa-code-form {
    display: flex;
    gap: 10px;
}
#spa-code-form input {
    flex: 1;
    padding: 10px;
    font-size: 16px;
}
#spa-code-form button {
    background: #2c2c2c;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}
#spa-error {
    color: red;
    margin-top: 15px;
}