/* SEM Hidrolik — native WhatsApp floating button */
.sem-wa-btn{
    position:fixed;
    left:20px;
    bottom:20px;
    z-index:2147483640;
    display:flex;
    align-items:center;
    background:#25D366;
    color:#fff !important;
    text-decoration:none !important;
    border-radius:50px;
    padding:12px 18px 12px 12px;
    box-shadow:0 6px 20px rgba(37,211,102,0.45);
    font-family:'Raleway','Segoe UI',sans-serif;
    font-size:14px;
    font-weight:600;
    transition:all .18s ease-out;
    cursor:pointer;
}
.sem-wa-btn:hover{
    background:#1da851;
    transform:scale(1.05);
    box-shadow:0 10px 26px rgba(37,211,102,0.55);
}
.sem-wa-btn .sem-wa-ic{
    width:36px;height:36px;
    background:#fff;
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    margin-right:10px;
    flex-shrink:0;
}
.sem-wa-btn .sem-wa-ic svg{width:22px;height:22px;fill:#25D366;}
.sem-wa-btn .sem-wa-txt{
    line-height:1.2;
    max-width:180px;
}
.sem-wa-btn .sem-wa-txt small{
    display:block;
    font-weight:400;
    font-size:11.5px;
    opacity:.92;
    margin-top:1px;
}
/* Tiklama nabız efekti */
.sem-wa-btn::before{
    content:'';
    position:absolute;
    left:12px;top:50%;
    width:36px;height:36px;
    margin-top:-18px;
    border-radius:50%;
    background:rgba(255,255,255,.4);
    animation:semWaPulse 2.2s infinite;
    pointer-events:none;
}
@keyframes semWaPulse{
    0%   { transform:scale(1);   opacity:.55; }
    80%  { transform:scale(1.8); opacity:0; }
    100% { transform:scale(1.8); opacity:0; }
}

@media (max-width: 520px){
    .sem-wa-btn{padding:10px;border-radius:50px;}
    .sem-wa-btn .sem-wa-txt{display:none;}
    .sem-wa-btn .sem-wa-ic{margin-right:0;}
    .sem-wa-btn::before{left:10px;}
}