.wnm-container {
    max-width: 600px;
    margin: 0 auto !important;
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.wnm-header { margin-bottom: 20px; }
.wnm-discount-box { background:#fff; padding:20px; border-radius:12px; box-shadow:0 4px 15px rgba(0,0,0,0.1); margin-bottom:25px; }
.wnm-discount-amount { font-size:3.8em; font-weight:bold; color:#c00; }
.wnm-code-box { margin:25px 0; }
.wnm-form { display:flex; flex-direction:column; gap:12px; align-items:center; }
.wnm-input { width:100%; max-width:320px; padding:12px; border:1px solid #ccc; border-radius:6px; }
.wnm-button { padding:14px 30px; background:#c00; color:#fff; border:none; border-radius:6px; font-size:1.1em; cursor:pointer; }
.wnm-button:disabled { background:#ccc; cursor:not-allowed; }
.wnm-message { margin-top:15px; font-size:1.1em; min-height:24px; }