.live-chat {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 500;
  font-family: Arial, Helvetica, sans-serif;
}

.live-chat-toggle {
  min-height: 46px;
  padding: 10px 17px;
  border: 2px solid #fff;
  border-radius: 0;
  color: #fff;
  background: #000;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.live-chat-panel {
  position: absolute;
  right: 0;
  bottom: 56px;
  display: none;
  width: min(350px, calc(100vw - 24px));
  max-height: min(620px, calc(100dvh - 84px));
  overflow-y: auto;
  border: 1px solid #555;
  color: #111;
  background: #fff;
  box-shadow: 0 12px 30px rgba(0, 0, 0, .35);
}

.live-chat.is-open .live-chat-panel {
  display: block;
}

.live-chat-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px;
  color: #fff;
  background: #111;
  font-size: 13px;
}

.live-chat-head span {
  color: #bbb;
}

.live-chat-messages {
  max-height: 280px;
  padding: 12px;
  overflow-y: auto;
  background: #f2f2f2;
}

.chat-system,
.chat-message {
  margin: 0 0 8px;
  padding: 9px 10px;
  font-size: 13px;
  line-height: 1.35;
}

.chat-message span {
  display: block;
  margin-bottom: 3px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.from-visitor {
  margin-left: 30px;
  color: #fff;
  background: #c91821;
}

.from-agent,
.chat-system {
  margin-right: 30px;
  background: #fff;
}

.live-chat-form {
  display: grid;
  gap: 8px;
  padding: 12px;
}

.live-chat-form[hidden] {
  display: none;
}

.live-chat-form input,
.live-chat-form textarea {
  width: 100%;
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid #aaa;
  border-radius: 0;
  font: inherit;
  font-size: 14px;
}

.live-chat-form button {
  min-height: 42px;
  border: 0;
  border-radius: 0;
  color: #fff;
  background: #c91821;
  font-size: 14px;
  font-weight: 700;
}

.live-chat .form-status {
  margin: 0;
  padding: 0 12px 12px;
  font-size: 12px;
}

@media (max-width: 700px) {
  .live-chat {
    right: 8px;
    bottom: 8px;
  }

  .live-chat-toggle {
    min-height: 42px;
    padding: 9px 12px;
    border-width: 1px;
    font-size: 13px;
  }

  .live-chat-panel {
    bottom: 50px;
    width: min(340px, calc(100vw - 16px));
    max-height: calc(100dvh - 66px);
  }
}

@media (max-width: 480px) {
  .live-chat {
    right: max(8px, env(safe-area-inset-right));
    bottom: max(8px, env(safe-area-inset-bottom));
  }

  .live-chat-toggle {
    min-height: 38px;
    padding: 7px 11px;
    font-size: 12px;
  }

  .live-chat-panel {
    right: 0;
    bottom: 46px;
    width: min(330px, calc(100vw - 16px));
    max-height: calc(100dvh - 62px);
    overflow-y: auto;
  }

  .live-chat-messages {
    max-height: 32dvh;
  }
}