.repliant-chat-launcher {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9999;
  background: #111827;
  color: #ffffff;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px;
  padding: 14px 18px;
  font: 700 14px/1 Arial, Helvetica, sans-serif;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}
.repliant-chat-launcher:hover { transform: translateY(-1px); }

.repliant-chat-window {
  position: fixed;
  right: 20px;
  bottom: 78px;
  width: min(380px, calc(100vw - 24px));
  height: min(620px, calc(100vh - 110px));
  z-index: 9999;
  background: #0f172a;
  color: #ffffff;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
  box-shadow: 0 18px 45px rgba(0,0,0,0.45);
  display: none;
  overflow: hidden;
  font-family: Arial, Helvetica, sans-serif;
}
.repliant-chat-window.open { display: flex; flex-direction: column; }

.repliant-chat-header {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: #111827;
  color: #ffffff;
}
.repliant-chat-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: #ffffff;
}
.repliant-chat-subtitle {
  margin: 6px 0 0;
  font-size: 12px;
  color: #ffffff;
}
.repliant-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: #0b1220;
}
.repliant-chat-bubble {
  max-width: 86%;
  margin-bottom: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
}
.repliant-chat-bubble.bot {
  background: #172033;
  color: #f8fafc;
  border-top-left-radius: 6px;
}
.repliant-chat-bubble.user {
  background: #ffffff;
  color: #111827;
  margin-left: auto;
  border-top-right-radius: 6px;
}
.repliant-chat-status {
  padding: 0 16px 8px;
  font-size: 12px;
  color: #cbd5e1;
  min-height: 20px;
}
.repliant-chat-form {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: #111827;
}
.repliant-chat-input {
  flex: 1;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  background: #0f172a;
  color: #ffffff;
  padding: 12px 14px;
  font-size: 14px;
}
.repliant-chat-submit, .repliant-chat-close {
  border: 0;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 800;
  cursor: pointer;
}
.repliant-chat-submit {
  background: #ffffff;
  color: #0f172a;
}
.repliant-chat-close {
  background: transparent;
  color: #ffffff;
  border: 1px solid rgba(255,255,255,0.18);
  margin-left: 8px;
}
.repliant-chat-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (max-width: 640px) {
  .repliant-chat-window {
    right: 12px;
    bottom: 72px;
    width: calc(100vw - 24px);
    height: calc(100vh - 92px);
  }
  .repliant-chat-launcher {
    right: 12px;
    bottom: 12px;
  }
}