/* Floating Button: Always visible, mobile optimized */
#smfcb-btn {
  position: fixed;
  bottom: 24px;
  right: 22px;
  z-index: 9999;
  transition: right 0.2s, bottom 0.2s;
}
#smfcb-btn button {
  box-shadow: 0 2px 16px #0003;
  border: 0;
  transition: background 0.18s;
}
#smfcb-btn button:active { filter: brightness(0.97); }

/* Popup (multi-option) */
#smfcb-multi-popup {
  position: absolute;
  bottom: 58px !important;
  right: 0;
  min-width: 180px;
  background: #fff;
  border-radius: 13px;
  box-shadow: 0 6px 24px #0002;
  padding: 10px 9px 9px 9px;
}
#smfcb-multi-popup button {
  width: 100%;
  margin-bottom: 6px;
  font-size: 1.05em;
}
#smfcb-multi-popup button:last-child { margin-bottom: 0; }

/* Chat window styles */
#smfcb-box {
  position: fixed;
  bottom: 94px;
  right: 22px;
  width: 340px;
  max-width: 96vw;
  max-height: 75vh;
  box-shadow: 0 4px 24px #0002;
  border-radius: 16px;
  background: #fff;
  z-index: 10000;
  overflow: hidden;
  display: none;
  flex-direction: column;
}
#smfcb-header {
  border-bottom: 1px solid #ededed;
}
#smfcb-messages {
  overflow-y: auto;
  min-height: 120px;
  max-height: 275px;
}
@media (max-width: 600px) {
  #smfcb-btn {
    bottom: 14px;
    right: 9px;
  }
  #smfcb-box {
    width: 98vw !important;
    right: 1vw;
    left: 1vw;
    min-width: 0;
    max-width: none;
    bottom: 13px;
    border-radius: 13px;
    max-height: 86vh;
  }
  #smfcb-multi-popup {
    min-width: 85vw;
    right: 0;
    left: auto;
    padding: 10px 4px 7px 4px;
  }
  #smfcb-messages {
    max-height: 45vh;
    font-size: 0.97em;
  }
  #smfcb-header {
    font-size: 1.07em;
    padding: 11px 9px !important;
  }
}