/* Universal RAG Chatbot Styles */

:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --secondary: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --dark: #1f2937;
  --light: #f9fafb;
  --border: #e5e7eb;
  --text: #374151;
  --text-light: #6b7280;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--light);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Header */
.header {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  margin-bottom: 2rem;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1rem;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: background 0.2s;
}

.nav a:hover {
  background: var(--light);
}

.nav a.active {
  background: var(--primary);
  color: white;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

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

.btn-secondary {
  background: var(--secondary);
  color: white;
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-outline {
  background: white;
  border: 1px solid var(--border);
  color: var(--text);
}

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

/* Cards */
.card {
  background: white;
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 1.5rem;
}

.card-header {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: border-color 0.2s;
  box-sizing: border-box;
  min-width: 0;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* File Upload */
.file-upload {
  border: 2px dashed var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.file-upload:hover {
  border-color: var(--primary);
  background: var(--light);
}

.file-upload.dragover {
  border-color: var(--primary);
  background: #eef2ff;
}

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.table th {
  font-weight: 600;
  color: var(--text);
  background: var(--light);
}

.table tr:hover {
  background: var(--light);
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-info {
  background: #dbeafe;
  color: #1e40af;
}

/* Loading */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Alert */
.alert {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

.alert-info {
  background: #dbeafe;
  color: #1e40af;
  border: 1px solid #93c5fd;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: white;
  border-radius: 0.5rem;
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.modal-footer {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-top: 1.5rem;
}

/* Chat */
.chat-container {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 1.5rem;
  height: calc(100vh - 140px);
  overflow: hidden;
}

.chat-sidebar {
  background: white;
  border-radius: 0.5rem;
  padding: 1rem;
  overflow-y: auto;
  height: 100%;
}

.chat-main {
  background: white;
  border-radius: 0.5rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
  scroll-behavior: smooth;
  /* Improve scroll performance */
  -webkit-overflow-scrolling: touch;
  will-change: scroll-position;
}

.chat-input {
  border-top: 1px solid var(--border);
  padding: 1rem 1.5rem;
  flex-shrink: 0;
}

.chat-input .flex {
  align-items: flex-end;
}

.chat-input textarea {
  flex: 1;
}

.chat-input button {
  flex-shrink: 0;
  height: fit-content;
}

.message {
  margin-bottom: 1.5rem;
  display: flex;
  gap: 1rem;
}

.message.user {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.message.user .message-avatar {
  background: var(--secondary);
}

.message-content {
  flex: 1;
  max-width: 70%;
}

.message.user .message-content {
  text-align: right;
}

.message-bubble {
  background: var(--light);
  padding: 1rem;
  border-radius: 1rem;
  display: inline-block;
  text-align: left;
}

.message.user .message-bubble {
  background: var(--primary);
  color: white;
}

.message-time {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

.message-sources {
  margin-top: 0.5rem;
  padding: 0.75rem;
  background: #f0f9ff;
  border-radius: 0.5rem;
  font-size: 0.875rem;
}

.source-item {
  padding: 0.5rem;
  margin-top: 0.5rem;
  background: white;
  border-radius: 0.25rem;
  border-left: 3px solid var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
  .chat-container {
    grid-template-columns: 1fr;
  }
  
  .chat-sidebar {
    display: none;
  }
  
  .message-content {
    max-width: 85%;
  }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.flex { display: flex; }
.flex-between { justify-content: space-between; }
.flex-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.hidden { display: none; }

/* Markdown Content Styles */
.markdown-content {
  line-height: 1.6;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  margin-top: 1em;
  margin-bottom: 0.5em;
  font-weight: 600;
  line-height: 1.25;
}

.markdown-content h1 { font-size: 1.5em; }
.markdown-content h2 { font-size: 1.3em; }
.markdown-content h3 { font-size: 1.1em; }

.markdown-content p {
  margin-bottom: 0.75em;
}

.markdown-content ul,
.markdown-content ol {
  margin-bottom: 0.75em;
  padding-left: 1.5em;
}

.markdown-content li {
  margin-bottom: 0.25em;
}

.markdown-content code {
  background: var(--light);
  padding: 0.2em 0.4em;
  border-radius: 0.25rem;
  font-size: 0.9em;
  font-family: 'Courier New', monospace;
}

.markdown-content pre {
  background: var(--light);
  padding: 1em;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin-bottom: 0.75em;
}

.markdown-content pre code {
  background: none;
  padding: 0;
}

.markdown-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1em;
  margin: 0.75em 0;
  color: var(--text-light);
  font-style: italic;
}

.markdown-content a {
  color: var(--primary);
  text-decoration: none;
}

.markdown-content a:hover {
  text-decoration: underline;
}

.markdown-content table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 0.75em;
}

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

.markdown-content th {
  background: var(--light);
  font-weight: 600;
}

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

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

.markdown-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1em 0;
}