/* Arkopharma Brand Colors */
:root {
  --arkopharma-primary: #0db84a;
  --arkopharma-secondary: #0fc954;
  --arkopharma-accent: #0ec04d;
  --arkopharma-dark: #0a8f3a;
  --arkopharma-light: #e6f8f0;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --background: #ffffff;
  --message-user-bg: #0db84a;
  --message-assistant-bg: #f5f5f5;
  --border-color: #e0e0e0;
  --shadow: rgba(0, 0, 0, 0.1);
}

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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans',
    'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--background);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
}

.chat-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 100%;
  margin: 0 auto;
  background-color: var(--background);
}

/* Header */
.chat-header {
  background: linear-gradient(135deg, var(--arkopharma-primary) 0%, var(--arkopharma-secondary) 100%);
  color: white;
  padding: 1rem 1.5rem;
  box-shadow: 0 2px 8px var(--shadow);
  z-index: 10;
}

.header-content {
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

.chat-header h1 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

/* Messages Area */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 2rem 1rem;
  background-color: var(--background);
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar {
  width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Welcome Message */
.welcome-message {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  padding: 2rem;
}

.welcome-content {
  text-align: center;
  max-width: 600px;
}

.welcome-logo {
  height: 80px;
  width: auto;
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

.welcome-content h2 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.welcome-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Messages */
.message {
  display: flex;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.3s ease-in;
}

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

.user-message {
  justify-content: flex-end;
}

.assistant-message {
  justify-content: flex-start;
}

.message-content {
  max-width: 70%;
  padding: 1rem 1.25rem;
  border-radius: 1rem;
  line-height: 1.6;
  word-wrap: break-word;
  font-size: 0.95rem;
}

.user-message .message-content {
  background-color: var(--message-user-bg);
  color: white;
  border-bottom-right-radius: 0.25rem;
}

.assistant-message .message-content {
  background-color: var(--message-assistant-bg);
  color: var(--text-primary);
  border-bottom-left-radius: 0.25rem;
}

.message-content.error-message {
  background-color: #ffebee;
  color: #c62828;
  border-left: 3px solid #c62828;
}

.message-content strong {
  font-weight: 600;
}

.message-content em {
  font-style: italic;
}

/* Markdown Styling */
.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4,
.message-content h5,
.message-content h6 {
  margin-top: 1.5em;
  margin-bottom: 0.75em;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

.message-content h1 {
  font-size: 1.75em;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5em;
}

.message-content h2 {
  font-size: 1.5em;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.4em;
}

.message-content h3 {
  font-size: 1.25em;
}

.message-content h4 {
  font-size: 1.1em;
}

.message-content h5 {
  font-size: 1em;
}

.message-content h6 {
  font-size: 0.9em;
  color: var(--text-secondary);
}

.message-content p {
  margin: 0.75em 0;
  line-height: 1.6;
}

.message-content p:first-child {
  margin-top: 0;
}

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

.message-content ul,
.message-content ol {
  margin: 0.75em 0;
  padding-left: 2em;
  line-height: 1.6;
}

.message-content ul {
  list-style-type: disc;
}

.message-content ol {
  list-style-type: decimal;
}

.message-content li {
  margin: 0.25em 0;
}

.message-content li > p {
  margin: 0.5em 0;
}

.message-content ul ul,
.message-content ol ol,
.message-content ul ol,
.message-content ol ul {
  margin: 0.5em 0;
}

.message-content code {
  background-color: rgba(0, 0, 0, 0.05);
  padding: 0.2em 0.4em;
  border-radius: 0.25em;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
  color: #d63384;
}

.assistant-message .message-content code {
  background-color: rgba(0, 0, 0, 0.08);
}

.user-message .message-content code {
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.message-content pre {
  background-color: rgba(0, 0, 0, 0.05);
  padding: 1em;
  border-radius: 0.5em;
  overflow-x: auto;
  margin: 1em 0;
  line-height: 1.5;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
}

.assistant-message .message-content pre {
  background-color: rgba(0, 0, 0, 0.05);
  border-left: 3px solid var(--arkopharma-primary);
}

.user-message .message-content pre {
  background-color: rgba(255, 255, 255, 0.15);
  border-left: 3px solid rgba(255, 255, 255, 0.5);
}

.message-content pre code {
  background-color: transparent;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.message-content blockquote {
  margin: 1em 0;
  padding: 0.5em 1em;
  border-left: 4px solid var(--arkopharma-primary);
  background-color: rgba(13, 184, 74, 0.05);
  color: var(--text-secondary);
  font-style: italic;
}

.user-message .message-content blockquote {
  border-left-color: rgba(255, 255, 255, 0.5);
  background-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

.message-content blockquote p {
  margin: 0.5em 0;
}

.message-content blockquote p:first-child {
  margin-top: 0;
}

.message-content blockquote p:last-child {
  margin-bottom: 0;
}

.message-content a {
  color: var(--arkopharma-primary);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  transition: color 0.2s;
}

.message-content a:hover {
  color: var(--arkopharma-dark);
}

.user-message .message-content a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: underline;
}

.user-message .message-content a:hover {
  color: white;
}

.message-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5em;
  margin: 1em 0;
}

.message-content hr {
  border: none;
  border-top: 2px solid var(--border-color);
  margin: 1.5em 0;
}

.user-message .message-content hr {
  border-top-color: rgba(255, 255, 255, 0.3);
}

.message-content table {
  border-collapse: collapse;
  margin: 1em 0;
  width: 100%;
  font-size: 0.9em;
}

.message-content table th,
.message-content table td {
  border: 1px solid var(--border-color);
  padding: 0.5em 0.75em;
  text-align: left;
}

.message-content table th {
  background-color: rgba(13, 184, 74, 0.1);
  font-weight: 600;
}

.user-message .message-content table th {
  background-color: rgba(255, 255, 255, 0.2);
}

.user-message .message-content table th,
.user-message .message-content table td {
  border-color: rgba(255, 255, 255, 0.3);
}

.message-content table tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

.user-message .message-content table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.05);
}

/* Loading Animation */
.loading-dots {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-secondary);
  animation: loadingDot 1.4s infinite ease-in-out;
}

.loading-dots span:nth-child(1) {
  animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes loadingDot {
  0%,
  80%,
  100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Input Container */
.chat-input-container {
  border-top: 1px solid var(--border-color);
  background-color: var(--background);
  padding: 1rem;
}

.chat-form {
  max-width: 1200px;
  margin: 0 auto;
}

.input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--background);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 0.75rem 1rem;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

.input-wrapper:focus-within {
  border-color: var(--arkopharma-primary);
  box-shadow: 0 0 0 3px rgba(13, 184, 74, 0.1);
}

.message-input {
  flex: 1;
  border: none;
  outline: none;
  resize: none;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  max-height: 200px;
  overflow-y: auto;
  line-height: 1.5;
  padding: 0;
  margin: 0;
  vertical-align: middle;
}

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

.message-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.send-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  border: none;
  border-radius: 50%;
  background-color: var(--arkopharma-primary);
  color: white;
  cursor: pointer;
  padding: 0;
  margin: 0;
  transition:
    background-color 0.2s,
    transform 0.1s;
  flex-shrink: 0;
}

.send-button:hover:not(:disabled) {
  background-color: var(--arkopharma-dark);
  transform: scale(1.05);
}

.send-button:active:not(:disabled) {
  transform: scale(0.95);
}

.send-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.send-button svg {
  width: 20px;
  height: 20px;
  display: block;
  margin: 0;
  padding: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .chat-header {
    padding: 0.75rem 1rem;
  }

  .logo {
    height: 32px;
  }

  .chat-header h1 {
    font-size: 1rem;
  }

  .chat-messages {
    padding: 1rem 0.75rem;
  }

  .message-content {
    max-width: 85%;
    padding: 0.875rem 1rem;
    font-size: 0.9rem;
  }

  .welcome-content h2 {
    font-size: 1.5rem;
  }

  .welcome-content p {
    font-size: 0.9rem;
  }

  .chat-input-container {
    padding: 0.75rem;
  }

  .input-wrapper {
    padding: 0.625rem 0.875rem;
  }
}

@media (max-width: 480px) {
  .message-content {
    max-width: 90%;
  }

  .welcome-logo {
    height: 60px;
  }
}