body {
  font-family: Arial, sans-serif;
  background-color: #f5f7fa;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Header */
header {
  background-color: #6c757d;;
  color: white;
  padding: 15px;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
header h1 {
  margin: 0;
  font-size: 24px;
}
header p {
  margin: 5px 0 0;
  font-size: 14px;
}

/* Chat container */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

#chat-box {
  width: 400px;
  height: 500px;
  background-color: #6c757d;;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.2);
  padding: 15px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

/* Messages */
.user-msg {
  background: #2e3842;
  color: white;
  padding: 8px 12px;
  border-radius: 12px;
  margin: 5px 0;
  align-self: flex-end;
  max-width: 70%;
}

.bot-msg {
  background: #2e3842;
  color: #ffffff;
  padding: 8px 12px;
  border-radius: 12px;
  margin: 5px 0;
  align-self: flex-start;
  max-width: 70%;
}

/* Input area */
.input-area {
  display: flex;
  border-top: 1px solid #ccc;
  width: 400px;
  margin-top: 10px;
}

.input-area input {
  flex: 1;
  border: none;
  padding: 12px;
  font-size: 14px;
}
.input-area input:focus {
  outline: none;
}

.input-area button {
  background-color: #303438;
  color: rgb(255, 246, 246);
  border: none;
  padding: 12px 20px;
  cursor: pointer;
  font-size: 14px;
}
.input-area button:hover {
  background-color: #0056b3;
}

/* Footer */
footer {
  background-color: #6c757d;
  text-align: center;
  padding: 10px;
  font-size: 13px;
  color: #555;
  border-top: 1px solid #ddd;
}