:root {
  --background-light: #ffffff;
  --background-dark: #1f1f1f;
  --text-light: #000000;
  --text-dark: #e0e0e0;
  --primary-color: #4a90e2;
  --primary-color-hover: #4281cb;
  --border-color-light: #dfe1e5;
  --border-color-dark: #3c4043;
  --disabled-color: #9e9e9e;
  --error-color: #d93025;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica,
    Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 8px;
  box-sizing: border-box;
  color: light-dark(var(--text-light), var(--text-dark));
  background-color: light-dark(var(--background-light), var(--background-dark));
}

#chat-container {
  width: 100%;
  max-width: 800px;
  height: calc(100vh - 16px);
  display: flex;
  flex-direction: column;
  border: 1px solid light-dark(var(--border-color-light), var(--border-color-dark));
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  background-color: light-dark(var(--background-light), var(--background-dark));
}

#messages {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message {
  max-width: 85%;
  padding: 12px 18px;
  border-radius: 20px;
  line-height: 1.6;
  word-wrap: break-word;
  animation: fadeIn 0.3s ease-in-out;
}

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

.user {
  align-self: flex-end;
  border-bottom-right-radius: 5px;
  background-color: #becad5;
  color: black;
}

.model {
  align-self: flex-start;
  border-bottom-left-radius: 5px;
  background-color: #345e7d;
  color: white;
}

#chat-form {
  display: flex;
  padding: 12px;
  border-top: 1px solid light-dark(var(--border-color-light), var(--border-color-dark));
}

#message-input {
  flex-grow: 1;
  padding: 12px 18px;
  border: 1px solid light-dark(var(--border-color-light), var(--border-color-dark));
  border-radius: 24px;
  margin-right: 12px;
  font-size: 1rem;
  background-color: transparent;
  color: inherit;
  outline: none;
}

#message-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.3);
}

#send-button {
  padding: 12px 24px;
  border: none;
  background-color: var(--primary-color);
  color: white;
  border-radius: 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: background-color 0.2s ease;
}

#send-button:hover:not(:disabled) {
  background-color: var(--primary-color-hover);
}

#send-button:disabled {
  background-color: var(--disabled-color);
  cursor: not-allowed;
}

.typing-indicator {
  padding: 12px 0;
}

.typing-indicator span {
  height: 8px;
  width: 8px;
  margin: 0 2px;
  background-color: var(--disabled-color);
  border-radius: 50%;
  display: inline-block;
  animation: bounce 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) {
  animation-delay: -0.32s;
}
.typing-indicator span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes bounce {
  0%,
  80%,
  100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1);
  }
}

/* Markdown styles */
.model p {
  margin: 0 0 0.5em 0;
}

.model p:last-child {
  margin-bottom: 0;
}

.model pre {
  background-color: light-dark(#eee, #2d2d2d);
  color: light-dark(#333, #f1f1f1);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  font-family: 'SF Mono', 'Consolas', 'Menlo', monospace;
  font-size: 0.9em;
}

.model code {
  font-family: 'SF Mono', 'Consolas', 'Menlo', monospace;
}

.model pre code {
  background: none;
  padding: 0;
}

.model ul, .model ol {
  padding-left: 20px;
}