#wa-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:99999;padding:16px}
#wa-overlay.open{display:flex}
#wa-box{background:#fff;border-radius:12px;width:100%;max-width:400px;padding:24px;position:relative;font-family:Arial,sans-serif;box-shadow:0 10px 40px rgba(0,0,0,.3)}
#wa-box h3{margin:0 0 4px;font-size:20px;color:#222}
#wa-box p{margin:0 0 16px;font-size:13px;color:#666}
#wa-box input,#wa-box select{width:100%;padding:11px 12px;margin-bottom:12px;border:1px solid #ccc;border-radius:8px;font-size:14px;box-sizing:border-box}
#wa-box button[type=submit]{width:100%;padding:12px;background:#25D366;color:#fff;border:0;border-radius:8px;font-size:16px;font-weight:bold;cursor:pointer}
#wa-close{position:absolute;top:8px;right:14px;background:none;border:0;font-size:26px;cursor:pointer;color:#888}