.phase25b-auth-card { max-width: 520px; }
.phase25b-expiry { margin: 8px 0 16px; color: #4b5563; font-size: 14px; }
.phase25b-code-field input,
.phase25b-code-input {
    width: 100%;
    max-width: 260px;
    font-size: 28px;
    letter-spacing: 8px;
    text-align: center;
    font-weight: 800;
}
.phase25b-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 18px; }
.phase25b-actions .btn[disabled] { opacity: .55; cursor: not-allowed; }
.form-errors, .errorlist { color: #b91c1c; margin: 8px 0 0; padding-left: 18px; }
@media (max-width: 640px) {
    .phase25b-actions { flex-direction: column; align-items: stretch; }
    .phase25b-code-field input, .phase25b-code-input { max-width: 100%; }
}