.booking-validation-message,
.form-error-msg.booking-validation-message {
    display: none;
    margin-top: 7px;
    color: #fca5a5;
    font-size: .82rem;
    font-weight: 700;
    line-height: 1.5;
}

.booking-validation-message.show,
.form-error-msg.booking-validation-message.show {
    display: block;
}

.booking-field-invalid {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, .14) !important;
}

.booking-group-invalid {
    border-radius: 14px;
    outline: 2px solid rgba(239, 68, 68, .65);
    outline-offset: 5px;
}

.booking-browser-toast {
    position: fixed;
    z-index: 20000;
    top: max(18px, env(safe-area-inset-top));
    left: 50%;
    width: min(92vw, 460px);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 15px 16px;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 16px;
    background: rgba(14, 16, 34, .97);
    color: #fff;
    box-shadow: 0 20px 55px rgba(0, 0, 0, .55);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -22px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
    direction: rtl;
}

.booking-browser-toast.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

.booking-browser-toast.success { border-color: rgba(16, 185, 129, .65); }
.booking-browser-toast.error { border-color: rgba(239, 68, 68, .7); }
.booking-browser-toast-icon { font-size: 1.55rem; }
.booking-browser-toast strong { display: block; margin-bottom: 3px; font-size: .98rem; }
.booking-browser-toast p { margin: 0; color: #cbd5e1; font-size: .84rem; line-height: 1.5; }
.booking-browser-toast button {
    width: 30px;
    height: 30px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .08);
    color: #fff;
    font-size: 1.25rem;
    cursor: pointer;
}

@media (max-width: 520px) {
    .booking-browser-toast { top: max(10px, env(safe-area-inset-top)); padding: 13px; }
}