.kardex-form {
    max-width: 600px;
    margin: 20px auto;
    padding: 25px;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid #e5e5e5;
}

.kardex-form h2 {
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
}

.kf-row {
    margin-bottom: 16px;
}

.kf-row label {
    font-weight: 600;
    margin-bottom: 4px;
    display: block;
}

.kf-row input,
.kf-row select,
.kf-row textarea {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 15px;
}

.kf-btn {
    margin-top: 15px;
    width: 100%;
    padding: 12px;
    background: #4F46E5;
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}

.kf-btn:hover {
    background: #4338CA;
}

.kardex-error {
    background: #ffdddd;
    color: #a00000;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 6px;
}