*{box-sizing:border-box}
body{
    margin:0;
    font-family:'Poppins',sans-serif;
    background:linear-gradient(135deg,#FED358,#FFB472);
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
}
.card{
    width:360px;
    background:#fff;
    border-radius:22px;
    padding:35px 30px;
    text-align:center;
    box-shadow:0 25px 50px rgba(0,0,0,.25);
    animation:fadeUp 1s ease;
}
h1{color:#FF6B35;margin-bottom:10px}
p{color:#444;font-size:15px}

input{
    width:100%;
    padding:14px;
    font-size:16px;
    border-radius:14px;
    border:1px solid #ddd;
    margin-top:12px;
}
input:focus{outline:none;border-color:#FF6B35}

button{
    width:100%;
    margin-top:14px;
    padding:14px;
    border:none;
    border-radius:14px;
    font-weight:600;
    font-size:15px;
    cursor:pointer;
    transition:.3s;
}

.btn-generate{background:#FF6B35;color:#fff}
.btn-generate:hover{background:#ff8756}

.qr-box{margin-top:25px;animation:zoomIn .7s ease}

.copy-btn{background:#FFE1C7}
.copy-btn:hover{background:#FFD4AE}

/* 🔥 ONLY WhatsApp animation */
.whatsapp-btn{
    background:linear-gradient(45deg,#25D366,#1ebe5d);
    color:#fff;
    position:relative;
    animation:pulseGlow 1.6s infinite;
}
@keyframes pulseGlow{
    0%{box-shadow:0 0 0 0 rgba(37,211,102,.7);transform:scale(1)}
    50%{box-shadow:0 0 0 14px rgba(37,211,102,0);transform:scale(1.06)}
    100%{box-shadow:0 0 0 0 rgba(37,211,102,0);transform:scale(1)}
}

@keyframes fadeUp{
    from{opacity:0;transform:translateY(40px)}
    to{opacity:1}
}
@keyframes zoomIn{
    from{opacity:0;transform:scale(.7)}
    to{opacity:1}
}