/* ─── Invalid inputs ─────────────────────────────────────── */

.form-control.is-invalid,
.form-select.is-invalid {
    /* Remove Bootstrap's default right-side SVG exclamation icon */
    background-image: none;
    padding-right: 1rem;

    /* Red left-edge accent instead of full red border */
    border-color: #f87171;
    border-width: 1px;
    border-left: 3px solid #ef4444;
    background-color: #fff8f8;
    box-shadow: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    border-color: #ef4444;
    border-left: 3px solid #dc2626;
    background-color: #fff8f8;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
    outline: none;
}

/* ─── Input-group: tint the leading icon span too ────────── */

.input-group:has(.is-invalid) .input-group-text {
    border-color: #f87171;
    border-left: 3px solid #ef4444;
    background-color: #fff8f8;
    color: #dc2626;
    transition: all 0.15s ease;
}

/* ─── Label turns red when its field is invalid ──────────── */

.mb-4:has(.is-invalid) > .form-label,
.mb-3:has(.is-invalid) > .form-label,
.col-12:has(.is-invalid) > .form-label,
.col-md-6:has(.is-invalid) > .form-label,
.col-md-4:has(.is-invalid) > .form-label {
    color: #b91c1c;
}

/* ─── Error message pill ─────────────────────────────────── */

.invalid-feedback {
    display: flex !important;
    align-items: center;
    gap: 7px;
    margin-top: 7px;
    padding: 7px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: #991b1b;
    background: #fef2f2;
    border-radius: 8px;
    border-left: 3px solid #ef4444;

    /* Slide down from hidden */
    animation: tm-error-in 0.2s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* Red circle badge with "!" */
.invalid-feedback::before {
    content: "!";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    height: 17px;
    background: #ef4444;
    color: #fff;
    border-radius: 50%;
    font-size: 0.65rem;
    font-weight: 900;
    flex-shrink: 0;
    line-height: 1;
}

@keyframes tm-error-in {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── Alert danger (credential error banner, etc.) ───────── */

.alert-danger {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fef2f2;
    border: 1px solid #fca5a5;
    border-left: 4px solid #ef4444;
    color: #991b1b;
    border-radius: 10px;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 12px 16px;
    animation: tm-error-in 0.2s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.alert-danger::before {
    content: "⚠";
    font-size: 1rem;
    flex-shrink: 0;
}