@keyframes pulse-dot {
  0%, 80%, 100% { transform: scale(0.4); opacity: 0.3; }
  40%            { transform: scale(1);   opacity: 1; }
}

#vmodParams {

    max-width: 600px;

    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    padding: 24px;

    &::backdrop{
        background: rgba(0,0,0,0.5);
        backdrop-filter: blur(2px);
    }

    h2 {
        margin-top: 0;
        color: #333;
    }

    h3 {
        margin-bottom: 5px;
        color: #333;
    }

    .vmodDescDisclosureArrow {
        margin-right: 8px;
        transition: transform 0.2s;
        font-size: 12px;
    }

    .vmodDescDisclosureArrow.expanded {
        transform: rotate(90deg);
    }

    .vmodDescHead{
        align-items: center;
        cursor: pointer;
        padding: 8px;
        background: #f5f5f5;
        border-radius: 4px;
        user-select: none;
        margin-top: 4px;
        display:none;
    }

    .vmodDescHead:hover{
        background: #e8e8e8;
    }

    .vmodDescHead.visible{
        display: flex;
    }

    .vmodDescContent {
        display:none;
        white-space:pre-wrap;
        font-family: monospace;
        background: #fafafa;
        padding:12px;
        border-radius: 4px;
        margin-top:4px;
        max-height: 500px;
        overflow:auto;
    }

    .form-group.model-select{
        display:flex;
        gap: 10px;
        padding-bottom: 10px;
    }

    .form-group.parameter-item{
        display: grid;
        grid-column: 1/5;
        grid-template-columns: subgrid;
        align-items: start;
        border-bottom: 1px solid #ccc;
        padding-bottom: 5px;
        padding-top:5px;

    }

    .form-group.is-invalid{
        background-color: #fdf2f2;
    }

    .form-group input {
        border: 1px solid #ccc;
        border-radius: 6px;
        padding: 4px;
        background-color:transparent;
    }

    .form-group input.vmodInputParam {
        width: 8ch;
        -moz-appearance: textfield;
        appearance: textfield;
    }

    input::-webkit-inner-spin-button{
        display: none;
        -webkit-appearance: none;
        margin: 0;
    }

    .form-group input.vmodInputParam::-webkit-outer-spin-button,
    .form-group input.vmodInputParam::-webkit-inner-spin-button, {
        -webkit-appearance: none;
        margin: 0;
    }

    .form-group.is-invalid input{
        color:#c0392b;
    }

    #vmodParamsContainer{
        display: grid;
        grid-template-columns: auto auto auto 1fr;
        column-gap: 10px;
        row-gap: 0px;
    }

    .help-text {
        font-size: 12px;
        color: #666;
        margin-top: 4px;
    }

    .vmod-btn-primary {
        background: #007bff;
        color: white;
    }

    .vmod-btn-primary:hover {
        background: #0056b3;
    }

    .vmod-btn-secondary {
        background: #6c757d;
        color: white;
    }

    .vmod-btn-secondary:hover {
        background: #545b62;
    }

    .button-container::before{
        content:"";
        position:absolute;
        left:-24px;
        right: -24px;
        top: 0px;
        border-top: 1px solid #333;
    }

    .button-container {
        display: flex;
        gap: 10px;
        margin-top: 15px;
        padding-top: 5px;
        white-space:nowrap;
        position:relative;
    }

    #vmodSubmit:disabled {
        cursor: not-allowed;
        opacity: 0.6;
        filter: grayscale(1);
    }

    button {
        border: none;
        padding: 10px 20px;
        border-radius: 4px;
        font-size: 14px;
        cursor: pointer;
        flex: 1;
    }

    #vmodPleaseWait{
        height: 3em;
        width:100%
        box-sizing:border-box;
        position:absolute;
        display:flex;
        align-items:center;
        justify-content:center;
    }

    #vmodTopParams {
        display:flex;
        gap: 10px;
    }

    #vmodContent{
        min-height: 3em;
        position:relative;
    }

    #waitElements{
        display: flex;
        align-items:baseline;
        gap:1ch;
    }

    .wait-dots {
        display: flex;
        gap: 8px;
        align-items: center;
    }
    .wait-dots span {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #1E90FF;
        animation: pulse-dot 1.2s ease-in-out infinite;
    }
    .wait-dots span:nth-child(2) { animation-delay: 0.2s; }
    .wait-dots span:nth-child(3) { animation-delay: 0.4s; }

    #errorWrapper{
        text-align:center;
        position:absolute;
        left: 0px;
        right: 0px;
        display: flex;
        justify-content:center;
        padding-top: 3px;
    }

    #vmodError{
        border-left: 3px solid #d39e00;
        padding-left: 8px;
        font-size: 0.95rem;
        color: #333; /* neutral dark text */
        display:flex;
        line-height: 1;
        align-items: center;
        gap: 8px;
    }

    .warningTriangle{
        color: #d39e00; /* muted professional amber */
        font-size: 1.1rem;
    }

    .single{
        grid-column: span 2;
    }
}