#vtw-floating-button{
    position:fixed; bottom:24px; z-index:999998; border:0; cursor:pointer;
    padding:14px 20px; border-radius:50px; background:#25D366; color:#fff;
    font-size:16px; font-weight:700; display:flex; align-items:center; gap:9px;
    box-shadow:0 6px 20px rgba(0,0,0,.22); transition:transform .2s ease;
}
#vtw-floating-button:hover{transform:translateY(-2px);}
#vtw-floating-button.vtw-right{right:24px;}
#vtw-floating-button.vtw-left{left:24px;}
.vtw-wa-icon{font-size:20px; line-height:1;}

#vtw-modal{display:none; position:fixed; inset:0; z-index:999999;}
#vtw-modal.vtw-open{display:block;}
.vtw-backdrop{position:absolute; inset:0; background:rgba(0,0,0,.62);}
.vtw-dialog{
    position:relative; z-index:2; width:min(620px,calc(100% - 24px)); max-height:90vh;
    overflow:auto; margin:5vh auto; background:#fff; border-radius:18px; padding:28px;
    box-sizing:border-box; box-shadow:0 20px 70px rgba(0,0,0,.35);
}
#vtw-close{position:absolute; top:10px; right:14px; border:0; background:transparent; font-size:32px; cursor:pointer; color:#666;}
.vtw-dialog h2{margin:0 35px 7px 0; font-size:25px; color:#17365d;}
.vtw-subtitle{margin:0 0 20px; color:#666;}
.vtw-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px;}
.vtw-field{display:flex; flex-direction:column; gap:6px;}
.vtw-field.full{grid-column:1/-1;}
.vtw-field label{font-weight:700; font-size:14px; color:#333;}
.vtw-field input,.vtw-field select,.vtw-field textarea{
    width:100%; box-sizing:border-box; border:1px solid #d7d7d7; border-radius:9px;
    padding:11px 12px; font-size:15px; background:#fff;
}
.vtw-field input:focus,.vtw-field select:focus,.vtw-field textarea:focus{outline:none; border-color:#25D366; box-shadow:0 0 0 3px rgba(37,211,102,.12);}
.vtw-submit{
    width:100%; margin-top:20px; border:0; border-radius:10px; padding:15px;
    background:#25D366; color:#fff; font-size:16px; font-weight:700; cursor:pointer;
}
.vtw-submit:hover{filter:brightness(.96);}
#vtw-error{color:#c62828; font-size:13px; margin:10px 0 0;}

@media(max-width:600px){
    #vtw-floating-button{bottom:18px; right:18px; left:auto; padding:13px 17px;}
    #vtw-floating-button.vtw-left{left:18px; right:auto;}
    .vtw-dialog{margin:2vh auto; padding:22px 16px; max-height:96vh;}
    .vtw-grid{grid-template-columns:1fr;}
    .vtw-field.full{grid-column:auto;}
}