.tvt-container{max-width:650px;margin:40px auto;text-align:center;font-family:Arial}
.tvt-upload-box{border:3px dashed #0073aa;border-radius:12px;padding:50px 20px;background:#f7fbff;cursor:pointer}
.tvt-upload-box:hover{background:#eef7ff}
.tvt-btn,.tvt-btn-green{display:inline-block;padding:12px 28px;background:#0073aa;color:#fff;border:none;border-radius:8px;font-size:16px;cursor:pointer;text-decoration:none;margin-top:15px}
.tvt-btn-green{background:#28a745}
.tvt-result{margin-top:20px}
#tvt_canvas{max-width:100%;border:1px solid #ddd;margin:15px 0}