* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #2d5a27;
  --primary-dark: #1e3d1a;
  --primary-light: #4a8a3d;
  --accent: #7fb069;
  --bg: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --text: #e0e0e0;
  --text-dim: #999;
  --border: #333;
  --success: #4caf50;
  --warning: #ff9800;
  --error: #f44336;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.5;
}

body {
  display: flex;
  flex-direction: column;
}

.container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg);
}

header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 16px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

header h1 {
  font-size: 24px;
  margin-bottom: 4px;
  font-weight: 600;
}

.subtitle {
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.chat-container {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message {
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message.user {
  align-items: flex-end;
}

.message.user .text {
  background: var(--primary);
  color: white;
  border-radius: 12px 12px 4px 12px;
  padding: 10px 14px;
  max-width: 85%;
  word-wrap: break-word;
}

.message.assistant .text {
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px 12px 12px 4px;
  padding: 10px 14px;
  max-width: 85%;
  word-wrap: break-word;
}

.message.system {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  padding: 8px 0;
  font-style: italic;
}

.command-block {
  background: var(--primary-dark);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  padding: 8px 12px;
  margin-top: 8px;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 12px;
  color: var(--accent);
  overflow-x: auto;
}

.command-result {
  background: rgba(76, 175, 80, 0.1);
  border-left: 3px solid var(--success);
  border-radius: 4px;
  padding: 8px 12px;
  margin-top: 8px;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 11px;
  color: var(--text-dim);
}

.command-result.error {
  background: rgba(244, 67, 54, 0.1);
  border-left-color: var(--error);
}

.input-area {
  padding: 12px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.input-wrapper {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.message-input {
  flex: 1;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.message-input:focus {
  border-color: var(--primary);
}

.message-input::placeholder {
  color: var(--text-dim);
}

.send-btn {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.2s;
  font-weight: 600;
}

.send-btn:hover {
  background: var(--primary-light);
}

.send-btn:active {
  background: var(--primary-dark);
}

.send-btn:disabled {
  background: var(--text-dim);
  cursor: not-allowed;
  opacity: 0.5;
}

.status {
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
}

.status.connected {
  color: var(--success);
}

.status.error {
  color: var(--error);
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
  animation: bounce 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes bounce {
  0%, 80%, 100% {
    opacity: 0.5;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-6px);
  }
}

/* Responsive */
@media (max-width: 480px) {
  .container {
    max-width: 100%;
  }

  header h1 {
    font-size: 20px;
  }

  .message.user .text,
  .message.assistant .text {
    max-width: 95%;
  }
}

/* Scrollbar styling */
.chat-container::-webkit-scrollbar {
  width: 6px;
}

.chat-container::-webkit-scrollbar-track {
  background: var(--bg);
}

.chat-container::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.chat-container::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}
