body {
  background-color: #ffffff;
  color: #1d1d1f;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.011em;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

.navbar {
  background: #ffffff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  height: 56px;
  left: 0;
  padding: 0.5rem 0;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 1000;
}

.navbar .container {
  align-items: center;
  display: flex;
  gap: 1rem;
  height: 100%;
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 1.5rem;
}

.navbar-brand {
  align-items: center;
  color: #1d1d1f;
  display: flex;
  font-size: 0.6875rem;
  font-weight: 600;
  gap: 0.5rem;
  letter-spacing: 0.05em;
  margin: 0;
  padding: 0;
  text-decoration: none;
  text-transform: lowercase;
}

.navbar-brand img {
  border-radius: 5px;
  height: 20px;
  width: 20px;
}

.container {
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 1rem;
}

.content-container {
  background: #ffffff;
  height: fit-content;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
}

.nav-tabs {
  border: none;
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.nav-tabs .nav-link {
  background: transparent;
  border: none;
  border-radius: 0;
  color: #6e6e73;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin: 0;
  padding: 0.5rem 0;
  position: relative;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.nav-tabs .nav-link:hover {
  color: #1d1d1f;
}

.nav-tabs .nav-link.active {
  color: #1d1d1f;
  font-weight: 600;
}

.nav-tabs .nav-link.active::after {
  background: #1d1d1f;
  border-radius: 0.5px;
  bottom: -1px;
  content: "";
  height: 1px;
  left: 0;
  position: absolute;
  right: 0;
}

.form-label {
  color: #1d1d1f;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.form-control {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  transition: all 0.2s ease;
}

.form-control:focus {
  border-color: #1d1d1f;
  box-shadow: none;
}

.btn-primary {
  background-color: #1d1d1f;
  border: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: all 0.2s ease;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background-color: #000000;
}

.markdown-content {
  color: #1d1d1f;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.markdown-content p {
  line-height: 1.6;
  margin-bottom: 1rem;
}

.markdown-content ul,
.markdown-content ol {
  margin: 1rem 0;
  padding-left: 2rem;
}

.markdown-content li {
  margin-bottom: 0.5rem;
}

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

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

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

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

.markdown-content a {
  border-bottom: 1px solid rgba(0, 102, 204, 0.2);
  color: #0066cc;
  text-decoration: none;
  transition: border-color 0.2s ease;
}

.markdown-content a:hover {
  border-bottom-color: #0066cc;
}

.markdown-content img,
.markdown-content video {
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  height: auto;
  margin: 1rem 0;
  max-width: 100%;
}

.markdown-content pre {
  background: #f6f6f6;
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 1rem 0;
  overflow-x: auto;
  padding: 1rem;
}

.markdown-content code {
  background: rgba(0, 0, 0, 0.03);
  border-radius: 3px;
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.875em;
  padding: 0.2em 0.4em;
}

.markdown-content pre code {
  background: transparent;
  color: #333;
  font-size: 0.9em;
  padding: 0;
  tab-size: 2;
}

.markdown-content blockquote {
  background: #f6f6f6;
  border-left: 4px solid #1d1d1f;
  border-radius: 0 8px 8px 0;
  color: #6e6e73;
  font-size: 0.95em;
  margin: 1rem 0;
  padding: 0.5rem 0 0.5rem 1rem;
}

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

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

.markdown-content th,
.markdown-content td {
  border: 1px solid #e6e6e6;
  padding: 0.75rem;
  text-align: left;
}

.markdown-content th {
  background-color: #f6f6f6;
  font-weight: 600;
}

.markdown-content tr:nth-child(even) {
  background-color: #fafafa;
}

.markdown-content hr {
  background-color: rgba(0, 0, 0, 0.1);
  border: none;
  height: 1px;
  margin: 2rem 0;
}

.toc {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  height: calc(100vh - 280px);
  margin-top: 1.5rem;
  padding-top: 1rem;
  position: relative;
}

.toc h5 {
  background-color: #fff;
  color: #1d1d1f;
  flex-shrink: 0;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  position: sticky;
  text-transform: uppercase;
  top: 0;
  z-index: 2;
}

.toc-list {
  background-color: transparent;
  border: none;
  border-radius: 8px;
  flex-grow: 1;
  list-style: none;
  margin: 0;
  overflow-y: auto;
  padding: 0.25rem;
  position: relative;
  scrollbar-color: rgba(0, 0, 0, 0.1) transparent;
  scrollbar-width: thin;
}

.toc-list::-webkit-scrollbar {
  width: 3px;
}

.toc-list::-webkit-scrollbar-track {
  background: transparent;
}

.toc-list::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 1.5px;
}

.toc-item {
  margin: 0.1rem 0;
  position: relative;
}

.toc-link {
  border-left: 1px solid transparent;
  border-radius: 4px;
  color: #6e6e73;
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  font-size: 0.75rem;
  letter-spacing: -0.011em;
  line-height: 1.3;
  overflow: hidden;
  padding: 0.25rem 0.5rem;
  text-decoration: none;
  text-overflow: ellipsis;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.toc-link[data-level="1"] {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: -0.013em;
}

.toc-link[data-level="2"] {
  font-size: 0.75rem;
  font-weight: 400;
}

.toc-link[data-level="3"],
.toc-link[data-level="4"],
.toc-link[data-level="5"],
.toc-link[data-level="6"] {
  color: #86868b;
  font-size: 0.6875rem;
}

.toc-link:hover {
  background: rgba(0, 0, 0, 0.02);
  color: #1d1d1f;
}

.toc-link.active {
  background: rgba(0, 0, 0, 0.03);
  border-left: 2px solid #1d1d1f;
  color: #1d1d1f;
  font-weight: 500;
  padding-left: calc(0.5rem - 1px);
}

.toc-item:has(.toc-link.active) + .toc-item .toc-link,
.toc-item:has(.toc-link.active) + .toc-item + .toc-item .toc-link,
.toc-link.active + .toc-item .toc-link {
  color: #1d1d1f;
  opacity: 0.8;
}

.toc-link.active::before {
  background-color: #1d1d1f;
  border-radius: 1px;
  content: "";
  height: 70%;
  left: 0;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
}

.highlight-pulse {
  animation: pulse-animation 1.2s ease-in-out;
}

@keyframes pulse-animation {
  0% {
    background-color: rgba(29, 29, 31, 0.2);
  }

  50% {
    background-color: rgba(29, 29, 31, 0.1);
  }

  100% {
    background-color: rgba(0, 0, 0, 0.08);
  }
}

.heading-indicator {
  position: relative;
}

.heading-indicator::before {
  content: "";
  height: 100px;
  left: 0;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: -100px;
}

.main-content {
  margin-top: 72px;
}

.sidebar-sticky {
  max-height: calc(100vh - 88px);
  overflow-y: auto;
  position: sticky;
  scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
  scrollbar-width: thin;
  top: 72px;
}

.sidebar-sticky .content-container {
  margin-bottom: 1rem;
  padding: 1rem;
}

.chat-container {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  margin-top: 0.5rem;
  padding-top: 0.5rem;
}

.chat-message {
  border-radius: 8px;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  padding: 1rem;
}

.user-message {
  background: #f6f6f6;
  margin-left: 2rem;
}

.assistant-message {
  background: #f6f6f6;
  margin-right: 2rem;
}

.chat-input {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.chat-input textarea {
  flex-grow: 1;
  font-size: 0.875rem;
  min-height: 38px;
  resize: vertical;
}

.ambient-info {
  align-items: center;
  color: #6e6e73;
  display: flex;
  font-size: 0.875rem;
  gap: 0.5rem;
  margin-left: auto;
}

.separator {
  color: #d2d2d7;
}

#clock,
#weather {
  font-variant-numeric: tabular-nums;
}

.md-heading {
  color: #1d1d1f !important;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif !important;
  font-weight: 600 !important;
  letter-spacing: -0.015em !important;
  line-height: 1.3 !important;
  margin: 1.5rem 0 1rem !important;
}

.md-h1 {
  font-size: 1.75rem !important;
  letter-spacing: -0.022em !important;
  margin-bottom: 1.25rem !important;
  margin-top: 2rem !important;
  padding-bottom: 0.5rem !important;
}

.md-h2 {
  font-size: 1.5rem !important;
  letter-spacing: -0.021em !important;
  margin-top: 1.75rem !important;
  padding-bottom: 0.3rem !important;
}

.md-h3 {
  font-size: 1.25rem !important;
  letter-spacing: -0.02em !important;
  margin-top: 1.5rem !important;
}

.md-h4 {
  font-size: 1.125rem !important;
  letter-spacing: -0.019em !important;
  margin-top: 1.25rem !important;
}

.md-h5 {
  font-size: 1rem !important;
  letter-spacing: -0.018em !important;
  margin-top: 1.25rem !important;
}

.md-h6 {
  color: #424245 !important;
  font-size: 0.875rem !important;
  letter-spacing: -0.016em !important;
  margin-top: 1.25rem !important;
}

.product-thumbnail {
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 4px;
  display: block;
  height: auto;
  margin-bottom: 0.5rem;
  margin-top: 0.5rem;
  max-height: 300px;
  max-width: 96px;
  min-width: 56px;
  width: 8%;
}

#scrollTopBtn {
  align-items: center;
  background-color: rgba(29, 29, 31, 0.8);
  border: none;
  border-radius: 50%;
  bottom: 20px;
  color: white;
  cursor: pointer;
  display: none;
  font-size: 18px;
  height: 40px;
  justify-content: center;
  line-height: 1;
  outline: none;
  padding: 10px;
  position: fixed;
  right: 30px;
  transition: background-color 0.3s, opacity 0.3s;
  width: 40px;
  z-index: 99;
}

#scrollTopBtn:hover {
  background-color: #1d1d1f;
  opacity: 1;
}

.content-toolbar {
  align-items: flex-start;
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-bottom: 1rem;
}

.article-list {
  display: flex;
  flex-direction: column;
}

.article-section + .article-section {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  margin-top: 2rem;
  padding-top: 2rem;
}

.article-body {
  min-width: 0;
}

.toolbar-actions {
  align-items: flex-end;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.article-title {
  color: #1d1d1f;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.021em;
  line-height: 1.3;
  margin: 0;
}

.article-meta {
  color: #6e6e73;
  font-size: 0.875rem;
  margin: 0.35rem 0 0;
}

.status-message {
  color: #6e6e73;
  font-size: 0.75rem;
  margin: 0;
  min-height: 1.2em;
}

.chat-log {
  margin-bottom: 1rem;
  max-height: 360px;
  overflow-y: auto;
}

.empty-state {
  color: #6e6e73;
  font-size: 0.875rem;
}

.public-site-footer {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  color: #86868b;
  font-size: 0.6875rem;
  line-height: 1.7;
  margin: 0 auto 2rem;
  max-width: 780px;
  padding: 1.25rem 1rem 0;
  text-align: center;
}

.public-site-footer a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.public-site-footer a:hover {
  color: #424245;
}

@media (max-width: 768px) {
  .main-content {
    margin-top: 64px;
  }

  .sidebar-sticky {
    max-height: none;
    overflow-y: visible;
    position: relative;
    top: 0;
  }

  .navbar .container {
    padding: 0 1rem;
  }

  .content-container {
    padding: 1rem;
  }

  .content-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar-actions {
    align-items: stretch;
  }

  .toc {
    height: auto;
    max-height: 200px;
  }

  .toc-link {
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
  }

  .toc-link[data-level="1"] {
    font-size: 0.75rem;
  }

  .chat-input {
    flex-direction: column;
  }

  .public-site-footer {
    margin-bottom: 1.5rem;
    padding-left: 0;
    padding-right: 0;
  }
}