body {
  font-family: "Segoe UI", sans-serif;
}

/* Floating Button */
#chatbot-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 15px rgba(0,0,0,0.25);
  transition: transform 0.3s;
  z-index: 9999;
}

#chatbot-button:hover {
  transform: scale(1.1);
}

/* Chat Window */
#chatbot-container {
  position: fixed;
  bottom: 90px;
  right: 20px;
  width: 340px;
  height: 480px;
  background: white;
  border-radius: 18px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px) scale(0.9);
  pointer-events: none;
  transition: all 0.3s ease;
}

#chatbot-container.show {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.dark {
  background: #0f172a !important;
  color: white;
}

/* Header */
#chatbot-header {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bot-title {
  font-weight: bold;
  font-size: 15px;
}

#theme-toggle {
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  padding: 4px 6px;
  font-size: 14px;
  color: white;
  transition: background 0.2s;
}

#theme-toggle:hover {
  background: rgba(255,255,255,0.35);
}

#close-btn {
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  color: white;
  padding: 4px 8px;
  cursor: pointer;
}

/* Messages */
#chatbot-messages {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  background: #f9fafb;
}

.dark #chatbot-messages {
  background: #020617;
}

/* Input */
#chatbot-input {
  display: flex;
  border-top: 1px solid #ddd;
  background: white;
}

.dark #chatbot-input {
  background: #0f172a;
}

#chatbot-input input {
  flex: 1;
  padding: 12px;
  border: none;
  outline: none;
  background: transparent;
  color: inherit;
}

#chatbot-input button {
  padding: 12px 16px;
  background: #4f46e5;
  color: white;
  border: none;
  cursor: pointer;
}

/* Message bubbles */
.bot-message {
  background: #e0e7ff;
  padding: 10px 12px;
  border-radius: 14px 14px 14px 2px;
  margin: 6px 0;
  max-width: 80%;
  animation: fadeIn 0.2s ease;
}

.dark .bot-message {
  background: #1e293b;
}

.user-message {
  background: #4f46e5;
  color: white;
  padding: 10px 12px;
  border-radius: 14px 14px 2px 14px;
  margin: 6px 0;
  max-width: 80%;
  align-self: flex-end;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Options */
#chatbot-options {
  padding: 8px;
}

#chatbot-options button {
  margin: 4px;
  padding: 6px 14px;
  border-radius: 20px;
  border: none;
  background: #eef2ff;
  cursor: pointer;
}

.dark #chatbot-options button {
  background: #1e293b;
  color: white;
}

/* Typing */
.typing {
  font-style: italic;
  opacity: 0.6;
}