#siamwedi-popup { display:none; position:fixed; inset:0; z-index:99999; }
.siamwedi-overlay { position:absolute; inset:0; background:rgba(0,0,0,0.6); }
.siamwedi-container {
    width:350px; padding:25px; background:#fff; border-radius:12px;
    position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
    text-align:center;
}
.siamwedi-close {
    position:absolute; top:10px; right:10px; background:none; border:none;
    font-size:22px; cursor:pointer;
}
.siamwedi-discount-box {
    padding:10px 20px; border-radius:8px; margin:15px 0; font-size:20px;
}
.siamwedi-coupon-box { font-size:18px; margin-bottom:15px; }
.siamwedi-copy {
    padding:10px 25px; border:none; color:#fff; cursor:pointer; border-radius:6px;
}

.siamwedi-copy.copied {
    background: #4caf50 !important; /* green */
    color: #fff;
    transition: background 0.3s;
}