/* Shared phone field states (static/js/core/phone-mask.js). AA contrast on any background. */
@keyframes phoneMaskAutofill { from { opacity: 1; } to { opacity: 1; } }
input[data-phone-mask="on"]:-webkit-autofill { animation: phoneMaskAutofill 1ms; }

input[data-phone-mask="on"] { font-variant-numeric: tabular-nums; }

input.is-phone-invalid[aria-invalid="true"],
input.is-phone-invalid[aria-invalid="true"]:focus,
input.is-phone-invalid[aria-invalid="true"]:hover {
    border-color: #f04438 !important;
    box-shadow: 0 0 0 3px rgba(240, 68, 56, 0.28) !important;
    outline-color: #f04438;
}

.phone-field-error {
    display: flex;
    align-items: flex-start;
    gap: 0.4em;
    flex-basis: 100%;
    width: 100%;
    box-sizing: border-box;
    margin: 0.4rem 0 0;
    padding: 0.45rem 0.7rem;
    border-radius: 8px;
    border-left: 3px solid #d92d20;
    background: #fef3f2;           /* #b42318 on #fef3f2 ≈ 6.3:1 */
    color: #b42318;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.35;
    text-align: left;
    animation: phoneFieldErrorIn 0.18s ease-out;
}
.phone-field-error::before {
    content: "!";
    flex: 0 0 auto;
    width: 1.15em;
    height: 1.15em;
    margin-top: 0.05em;
    border-radius: 50%;
    background: #d92d20;
    color: #fff;
    font-size: 0.8em;
    font-weight: 700;
    line-height: 1.15em;
    text-align: center;
}
.phone-field-error[hidden] { display: none; }

@keyframes phoneFieldErrorIn {
    from { opacity: 0; transform: translateY(-3px); }
    to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
    .phone-field-error { animation: none; }
}