.mbs-card {
    max-width: 600px;
    margin: 20px auto;
    padding: 25px;
    background: #ffffff;
    border: 1px solid #e1e4e8;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.mbs-card h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: #333;
    border-bottom: 2px solid #0073aa;
    padding-bottom: 8px;
}

.mbs-step {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px dashed #eee;
}

.mbs-label {
    font-weight: bold;
    margin-bottom: 10px;
    color: #444;
}

.mbs-input-group {
    display: flex;
    gap: 10px;
}

.mbs-input-group input[type="text"],
.mbs-field input[type="text"],
.mbs-field input[type="email"],
.mbs-step select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
    background-color: #fff;
}

.mbs-field input[readonly] {
    background-color: #fcfcfc;
    cursor: pointer;
}

.mbs-field {
    margin-bottom: 15px;
}

.mbs-field label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: #666;
}

.mbs-radio-group {
    display: flex;
    gap: 20px;
}

.mbs-radio-group label {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    padding: 8px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #f9f9f9;
}

.mbs-radio-group label.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: #eee;
    text-decoration: line-through;
}

button#mbs_btn_search,
button#mbs_btn_submit {
    background-color: #0073aa;
    color: #fff;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

button#mbs_btn_search:hover,
button#mbs_btn_submit:hover {
    background-color: #005177;
}

.mbs-error {
    color: #d9534f;
    font-size: 0.85rem;
    margin-top: 5px;
}

.mbs-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    font-weight: bold;
}

.mbs-message.success {
    background: #d4edda;
    color: #155724;
}

.mbs-message.error {
    background: #f8d7da;
    color: #721c24;
}