.nm-signup-form {
    max-width: 420px;
    padding: 20px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #fafafa;
}
.nm-signup-title {
    margin-top: 0;
}
.nm-field {
    display: flex;
    flex-direction: column;
    margin-bottom: 12px;
}
.nm-field label {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
}
.nm-field input {
    padding: 8px 10px;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    font-size: 14px;
}
.nm-hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}
.nm-signup-submit {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 9px 18px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
}
.nm-signup-submit:disabled {
    opacity: 0.6;
    cursor: default;
}
.nm-signup-feedback {
    font-size: 13px;
    margin: 8px 0 0;
}
.nm-signup-feedback.nm-success { color: #166534; }
.nm-signup-feedback.nm-error { color: #991b1b; }