/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background-color: #0d1117;
  color: #ffffff;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
}

/* Chat Wrapper */
.chat-wrapper {
  background-color: #161b22;
  width: 100%;
  max-width: 500px;
  height: 95vh;
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

/* Header */
.chat-header {
  background-color: #1f2937;
  padding: 16px;
  text-align: center;
  border-bottom: 1px solid #333;
}

.chat-header h2 {
  font-size: 20px;
  color: #ffffff;
}

/* Chat Messages */
#chat-box {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 15px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Bot message */
.message.bot {
  align-self: flex-start;
  background-color: #2d333b;
  color: #c9d1d9;
  border-bottom-left-radius: 0;
}

/* User message */
.message.user {
  align-self: flex-end;
  background-color: #1d4ed8;
  color: #ffffff;
  border-bottom-right-radius: 0;
}

/* Footer / Input */
.chat-footer {
  display: flex;
  padding: 12px;
  border-top: 1px solid #333;
  background-color: #1f2937;
}

.chat-footer input[type="text"] {
  flex: 1;
  padding: 12px 14px;
  font-size: 15px;
  border-radius: 8px;
  border: none;
  outline: none;
  background-color: #0d1117;
  color: white;
  margin-right: 10px;
}

.chat-footer button {
  background-color: #2563eb;
  color: white;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  transition: background 0.2s ease;
}

.chat-footer button:hover {
  background-color: #1e40af;
}

/* Code block styles (from highlight.js) */
pre {
  background: #1e1e1e;
  color: #dcdcdc;
  padding: 10px;
  border-radius: 8px;
  overflow-x: auto;
}