.pk-btn{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:70;font:600 15px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#3E8BFF;color:#fff;border:0;border-radius:12px;padding:.9rem 1.5rem;cursor:pointer;box-shadow:0 12px 30px rgba(0,0,0,.35);transition:transform .18s,filter .18s}
.pk-btn:hover{transform:translateX(-50%) translateY(-2px);filter:brightness(1.08)}
.pk-btn:disabled{opacity:.7;cursor:default}
@media(prefers-reduced-motion:reduce){.pk-btn{transition:none}}
.pk-msg{position:fixed;left:50%;bottom:74px;transform:translateX(-50%);z-index:70;max-width:22rem;text-align:center;font:500 12.5px/1.35 -apple-system,system-ui,sans-serif;color:#eef2f7;background:rgba(14,26,43,.94);border:1px solid rgba(255,255,255,.18);border-radius:10px;padding:.6rem .8rem;box-shadow:0 10px 26px rgba(0,0,0,.35)}
.pk-msg .pk-wa{display:inline-block;margin-top:.45rem;color:#25d366;font-weight:700;text-decoration:none}
.pk-msg .pk-wa:hover{text-decoration:underline}