/* Reset and base */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f0f2f5;
  margin: 0;
  padding: 20px;
  display: flex;
  justify-content: center;
  height: 100vh;
  align-items: center;
}

.container {
  display: flex;
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  height: 600px;
  overflow: hidden;
}

.main-chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
}

#chatbox {
  flex-grow: 1;
  padding: 20px;
  overflow-y: auto;
  border-bottom: 1px solid #ddd;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Individual messages */
.message {
  max-width: 75%;
  padding: 12px 16px;
  border-radius: 20px;
  line-height: 1.4;
  font-size: 15px;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.message strong {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
}

.message.you {
  align-self: flex-end;
  background: #007bff;
  color: #fff;
  border-bottom-right-radius: 4px;
}

.message.ai {
  align-self: flex-start;
  background: #e4e6eb;
  color: #050505;
  border-bottom-left-radius: 4px;
}

.input-area {
  display: flex;
  padding: 12px 20px;
  gap: 10px;
  border-top: 1px solid #ddd;
}

#userInput {
  flex-grow: 1;
  padding: 12px 16px;
  border-radius: 25px;
  border: 1px solid #ccc;
  font-size: 16px;
  outline: none;
  transition: border-color 0.3s ease;
}

#userInput:focus {
  border-color: #007bff;
}

#sendBtn {
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 25px;
  padding: 12px 20px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#sendBtn:hover {
  background-color: #0056b3;
}

#darkModeToggle {
  background: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  margin-left: 6px;
  color: #007bff;
  transition: color 0.3s ease;
}

#darkModeToggle:hover {
  color: #0056b3;
}

body.dark-mode #darkModeToggle {
  color: #0d6efd;
}

body.dark-mode #darkModeToggle:hover {
  color: #084cd9;
}

#commandsBox {
  width: 200px;
  padding: 20px;
  background-color: #f9f9f9;
  border-left: 1px solid #ddd;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-size: 14px;
  line-height: 1.4;
}

#commandsBox code {
  font-weight: 700;
  background-color: #ddd;
  padding: 2px 5px;
  border-radius: 4px;
  font-family: 'Courier New', Courier, monospace;
}

body.dark-mode #commandsBox {
  background-color: #2a2a2a;
  border-left: 1px solid #555;
  color: #ddd;
}

body.dark-mode #commandsBox code {
  background-color: #444;
  color: #eee;
}

/* Dark mode styling */
body.dark-mode {
  background: #121212;
  color: #eee;
}

body.dark-mode .container {
  background: #1e1e1e;
  box-shadow: 0 8px 24px rgba(255 255 255 / 0.1);
}

body.dark-mode #chatbox {
  border-color: #333;
}

body.dark-mode .message.you {
  background: #0d6efd;
  color: #fff;
}

body.dark-mode .message.ai {
  background: #2a2a2a;
  color: #ddd;
}

body.dark-mode #userInput {
  background: #222;
  border-color: #555;
  color: #eee;
}

body.dark-mode #userInput:focus {
  border-color: #0d6efd;
}

body.dark-mode #sendBtn {
  background-color: #0d6efd;
  color: #fff;
}

body.dark-mode #sendBtn:hover {
  background-color: #084cd9;
}

/* RESPONSIVE MOBILE FIX */
@media (max-width: 768px) {
  body {
    padding: 10px;
    height: auto;
  }

  .container {
    flex-direction: column;
    height: auto;
    max-height: 100vh;
    width: 100%;
    border-radius: 8px;
  }

  #commandsBox {
    width: 100%;
    border-left: none;
    border-top: 1px solid #ddd;
    padding: 10px;
  }

  .input-area {
    flex-direction: column;
    padding: 10px;
  }

  #sendBtn {
    width: 100%;
    padding: 12px;
  }

  #userInput {
    width: 100%;
    padding: 10px;
  }

  #chatbox {
    padding: 10px;
    max-height: 50vh;
  }

  .message {
    font-size: 14px;
  }
}