.k-btn-disabled {
    opacity: .45;
    pointer-events: none;
    position: relative;
    transition: opacity .25s;
}

.k-btn-disabled::after {
    content: 'Problème API';
    position: absolute;
    left: 50%;
    top: -34px;
    transform: translateX(-50%);
    background: #333;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    opacity: 0;
    transition: opacity .2s;
    pointer-events: none;
}

.k-btn-disabled:hover::after {
    opacity: 1;
}

.k-btn-danger {
    background: #dc3545;
    color: white;
    border: 1px solid #dc3545;
}

.k-btn-danger:hover:not(.k-disabled) {
    background: #c82333;
    border-color: #bd2130;
}

.kaldia-warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 12px 16px;
    border-radius: 4px;
    margin: 16px 0;
    font-size: 14px;
}