.vfd-form-container {
    min-height: 500px;
    border: 2px dashed #ddd;
    padding: 20px;
    background-color: #f9f9f9;
}

.vfd-elements {
    margin: -10px;
}

.vfd-element {
    padding: 10px;
    margin: 10px;
    background-color: #f0f0f0;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: move;
    text-align: center;
    transition: all 0.2s ease;
}

.vfd-element:hover {
    background-color: #e0e0e0;
    border-color: #999;
}

.vfd-form-element {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    position: relative;
}

.vfd-form-element:hover {
    border-color: #337ab7;
    box-shadow: 0 0 5px rgba(51, 122, 183, 0.5);
}

.vfd-element-remove {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: #ff6b6b;
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    display: none;
}

.vfd-form-element:hover .vfd-element-remove {
    display: block;
}

.vfd-element-remove:hover {
    background-color: #ff5252;
}

.vfd-element-properties {
    min-height: 200px;
}

.vfd-property-group {
    margin-bottom: 15px;
}

.vfd-property-label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    font-size: 12px;
}

.vfd-property-input {
    width: 100%;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 3px;
    font-size: 12px;
}

.vfd-property-checkbox {
    margin-right: 5px;
}

#vfd-designer-container {
    margin-top: 20px;
}

.form-horizontal .form-group {
    margin-right: 0;
    margin-left: 0;
}

.form-horizontal .control-label {
    text-align: left;
    margin-bottom: 5px;
}

@media (min-width: 768px) {
    .form-horizontal .control-label {
        text-align: right;
        margin-bottom: 0;
    }
}