.tikchat-btn {
    position: fixed;
    background: #25d366;
    color: #fff;
    padding: 15px 25px;
    border-radius: 50px;
    font-size: 18px;
    text-decoration: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    z-index: 9999;
    transition: background 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}
.tikchat-btn:hover {
    background: #128c7e;
}
.tikchat-btn.bottom-right {
    bottom: 30px;
    right: 30px;
    left: auto;
    top: auto;
}
.tikchat-btn.bottom-left {
    bottom: 30px;
    left: 30px;
    right: auto;
    top: auto;
}
.tikchat-btn.top-right {
    top: 30px;
    right: 30px;
    left: auto;
    bottom: auto;
}
.tikchat-btn.top-left {
    top: 30px;
    left: 30px;
    right: auto;
    bottom: auto;
}
@media (max-width: 600px) {
    .tikchat-btn {
        padding: 10px 16px;
        font-size: 16px;
    }
}