body {
    background-color: skyblue;
}

/* Lisibilité minimale des messages. L'habillage — empilement, animations, tokens — est du lot 1. */
.flash {
    padding: .6rem .9rem;
    border-radius: 4px;
    border: 1px solid;
}

.flash-error {
    color: #82071e;
    background-color: #ffebe9;
    border-color: #ff818266;
}

.flash-success {
    color: #0a3622;
    background-color: #dafbe1;
    border-color: #2da44e66;
}

.form-error,
.error-message {
    color: #82071e;
}