.cal-card{
    background:#fff;
    border:1px solid #e2e8f0;
    border-radius:8px;
    margin:0 auto;
    max-width:800px;
    padding:24px;
}
.cal-title{
    font-size:18px;
    font-weight:600;
    margin:0 0 16px;
    text-align:center;
}
.case-label{
    color:#475569;
    font-size:14px;
    margin-bottom:8px;
}
.case-types label{
    border:1px solid #e2e8f0;
    border-radius:6px;
    color:#475569;
    cursor:pointer;
    display:inline-block;
    font-size:14px;
    margin:0 8px 8px 0;
    padding:6px 14px;
    transition:border-color 0.15s, color 0.15s;
}
.case-types label:has(input:checked){
    border-color:#3964fe;
    color:#3964fe;
}
.case-types input{
    margin-right:4px;
}
.additional-options{
    background:#f8fafc;
    border:1px solid #e2e8f0;
    border-radius:6px;
    display:none;
    margin-bottom:16px;
    padding:12px;
}
.additional-options label{
    display:inline-block;
    font-size:14px;
    margin:0 35px 0px 0;
}
.additional-options input{
    margin-right:4px;
}
.input-row{
    margin-bottom:16px;
}
.input-row input[type="number"]{
    border:1px solid #e2e8f0;
    border-radius:6px;
    box-sizing:border-box;
    font-size:14px;
    margin-top:8px;
    padding:8px 10px;
    width:100%;
}
.input-row input[type="number"]:focus{
    border-color:#3964fe;
    outline:none;
}
#case-title-text{
    color:#94a3b8;
    font-size:14px;
    margin-left:8px;
}
.btn-row{
    margin-bottom:16px;
}
.btn-row button{
    background:#3964fe;
    border:none;
    border-radius:6px;
    color:#fff;
    cursor:pointer;
    font-size:14px;
    height:36px;
    margin-right:10px;
    padding:0 20px;
}
.btn-row button:hover{
    background:#2d4fd6;
}
.btn-row .btn-text{
    background:none;
    color:#3964fe;
}
.btn-row .btn-text:hover{
    text-decoration:underline;
}
.cal-result{
    background:#f8fafc;
    border:1px solid #e2e8f0;
    border-radius:6px;
    box-sizing:border-box;
    color:#0f172a;
    font-size:14px;
    line-height:1.7;
    min-height:40px;
    padding:8px 12px;
    white-space:pre-line;
}
@media (max-width:600px){
    .cal-card{
        padding:16px;
    }
}