.app-shell {
  grid-template-columns: 280px minmax(0, 1fr);
}

.app-shell.sidebar-collapsed {
  grid-template-columns: 68px minmax(0, 1fr);
}

.app-shell.sidebar-collapsed #sidebar {
  padding-left: 0.85rem;
  padding-right: 0.85rem;
}

.app-shell.sidebar-collapsed .sidebar-copy {
  display: none;
}

.app-shell.sidebar-collapsed .sidebar-item {
  justify-content: center;
}

.app-shell.sidebar-collapsed #newDocButton {
  padding-left: 0;
  padding-right: 0;
}

.app-shell.sidebar-collapsed #recentDocumentsList {
  max-height: none;
}

:root {
  --ui-bg: #eef2f7;
  --ui-shell: rgba(255, 255, 255, 0.72);
  --ui-shell-border: rgba(148, 163, 184, 0.38);
  --ui-panel: rgba(255, 255, 255, 0.9);
  --ui-panel-border: rgba(148, 163, 184, 0.35);
  --ui-text: #0f172a;
  --ui-muted: rgba(15, 23, 42, 0.55);

  --ui-sidebar: rgba(255, 255, 255, 0.86);
  --ui-sidebar-border: rgba(148, 163, 184, 0.32);
  --ui-sidebar-item: rgba(15, 23, 42, 0.72);
  --ui-sidebar-item-hover: rgba(15, 23, 42, 0.06);
  --ui-sidebar-pill: rgba(15, 23, 42, 0.06);

  --ui-chip-bg: rgba(59, 130, 246, 0.12);
  --ui-chip-fg: #1d4ed8;
}

.dark {
  --ui-bg: #060b15;
  --ui-shell: rgba(2, 6, 23, 0.72);
  --ui-shell-border: rgba(148, 163, 184, 0.18);
  --ui-panel: rgba(2, 6, 23, 0.88);
  --ui-panel-border: rgba(148, 163, 184, 0.16);
  --ui-text: #e2e8f0;
  --ui-muted: rgba(226, 232, 240, 0.6);

  --ui-sidebar: rgba(2, 6, 23, 0.75);
  --ui-sidebar-border: rgba(148, 163, 184, 0.18);
  --ui-sidebar-item: rgba(226, 232, 240, 0.74);
  --ui-sidebar-item-hover: rgba(226, 232, 240, 0.08);
  --ui-sidebar-pill: rgba(226, 232, 240, 0.08);

  --ui-chip-bg: rgba(59, 130, 246, 0.18);
  --ui-chip-fg: #bfdbfe;
}

.dark .custom-scroll::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.22);
}

.dark .custom-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.4);
}

.custom-scroll::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.custom-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.custom-scroll::-webkit-scrollbar-thumb {
  background: rgba(100, 116, 139, 0.24);
  border-radius: 999px;
}

.custom-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(100, 116, 139, 0.42);
}

.sidebar-item {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 12px;
  border-radius: 16px;
  padding: 10px 12px;
  color: var(--ui-sidebar-item);
  transition:
    background 160ms ease,
    color 160ms ease;
}

.sidebar-item:hover,
.sidebar-item.active {
  background: var(--ui-sidebar-item-hover);
  color: var(--ui-text);
}

.dark .sidebar-item:hover,
.dark .sidebar-item.active {
  color: #f8fafc;
}

.sidebar-item-icon {
  display: inline-flex;
  height: 24px;
  width: 24px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--ui-sidebar-pill);
  font-size: 11px;
  font-weight: 800;
}

.recent-item {
  width: 100%;
  border: 1px solid var(--ui-sidebar-border);
  border-radius: 10px;
  padding: 5px 10px;
  margin-top: 5px;
  text-align: left;
  background: rgba(255, 255, 255, 0.55);
  color: var(--ui-text);
  transition:
    background 160ms ease,
    border-color 160ms ease,
    transform 160ms ease;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  -ms-border-radius: 10px;
  -o-border-radius: 10px;
}

.dark .recent-item {
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.88);
}

.recent-item:hover,
.recent-item.active {
  border-color: rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.08);
  transform: translateY(-1px);
}

.dark .recent-item:hover,
.dark .recent-item.active {
  border-color: rgba(148, 163, 184, 0.22);
  background: rgba(255, 255, 255, 0.06);
}

.app-shell.sidebar-collapsed .recent-item {
  padding: 10px;
}

.app-shell.sidebar-collapsed .recent-title,
.app-shell.sidebar-collapsed .recent-date {
  display: none;
}

.recent-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
}

.recent-date {
  margin-top: 3px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ui-muted);
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: var(--ui-chip-bg);
  color: var(--ui-chip-fg);
  padding: 0.45rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.table-row {
  transition: background 160ms ease;
}

.table-row:hover {
  background: #f8fafc;
}

.dark .table-row:hover {
  background: rgba(30, 41, 59, 0.55);
}

.table-open-button,
.table-delete-button {
  border-radius: 14px;
  padding: 0.55rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  transition:
    transform 160ms ease,
    opacity 160ms ease;
}

.table-open-button:hover,
.table-delete-button:hover {
  transform: translateY(-1px);
}

.table-open-button {
  background: #111827;
  color: white;
}

.table-delete-button {
  background: #fff1f2;
  color: #e11d48;
}

.dark .table-open-button {
  background: #e2e8f0;
  color: #0f172a;
}

.dark .table-delete-button {
  background: rgba(136, 19, 55, 0.28);
  color: #fecdd3;
}

.empty-table {
  padding: 48px 20px;
  text-align: center;
  color: #64748b;
}

.dark .empty-table {
  color: #94a3b8;
}

.prose-surface {
  color: #1f2937;
  line-height: 1.8;
  background: white;
  max-width: none;
}

.dark .prose-surface {
  color: #cbd5e1;
  background: #020617;
}

.prose-surface.markdown-body {
  font-family: "Manrope", ui-sans-serif, system-ui, sans-serif;
  --color-canvas-default: transparent;
  --color-fg-default: inherit;
}

.prose-surface.markdown-body,
.prose-surface.markdown-body p,
.prose-surface.markdown-body li,
.prose-surface.markdown-body td,
.prose-surface.markdown-body th,
.prose-surface.markdown-body blockquote {
  font-size: 1rem;
}

.prose-surface.markdown-body pre,
.prose-surface.markdown-body code {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
}

.prose-surface.markdown-body table {
  display: table;
  width: 100%;
}

.prose-surface.markdown-body img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1rem 0;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.dark .prose-surface.markdown-body img {
  border-color: rgba(51, 65, 85, 0.8);
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.35);
}

.prose-surface.markdown-body ul {
  list-style: disc outside;
  padding-left: 1.6rem;
}

.prose-surface.markdown-body ol {
  list-style: decimal outside;
  padding-left: 1.75rem;
}

.prose-surface.markdown-body ul ul {
  list-style-type: circle;
}

.prose-surface.markdown-body ul ul ul {
  list-style-type: square;
}

.prose-surface h1,
.prose-surface h2,
.prose-surface h3,
.prose-surface h4,
.prose-surface h5,
.prose-surface h6 {
  color: #0f172a;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.dark .prose-surface h1,
.dark .prose-surface h2,
.dark .prose-surface h3,
.dark .prose-surface h4,
.dark .prose-surface h5,
.dark .prose-surface h6 {
  color: #f8fafc;
}

.prose-surface h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
}

.prose-surface h2 {
  margin: 2rem 0 1rem;
  font-size: 1.6rem;
  font-weight: 800;
}

.prose-surface h3 {
  margin: 1.5rem 0 0.8rem;
  font-size: 1.2rem;
  font-weight: 800;
}

.prose-surface p,
.prose-surface li,
.prose-surface blockquote,
.prose-surface td,
.prose-surface th {
  font-size: 1rem;
}

.prose-surface p {
  margin: 1rem 0;
}

.prose-surface ul,
.prose-surface ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.prose-surface li {
  margin: 0.45rem 0;
}

.prose-surface ul.task-list {
  list-style: none;
  padding-left: 0;
}

.prose-surface ul.task-list li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
}

.prose-surface .task-check {
  margin-top: 0.12rem;
  font-size: 1.05rem;
}

.prose-surface code,
.prose-surface pre {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
}

.prose-surface code {
  border-radius: 10px;
  background: #eef2f7;
  padding: 0.18rem 0.45rem;
  font-size: 0.92rem;
}

.dark .prose-surface code {
  background: rgba(51, 65, 85, 0.6);
}

.prose-surface pre {
  overflow: auto;
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  border-radius: 20px;
  background: #111827;
  color: #f8fafc;
}

.prose-surface pre code {
  background: transparent;
  padding: 0;
  background: none !important;
}

.prose-surface blockquote {
  margin: 1.25rem 0;
  border-left: 4px solid #cbd5e1;
  padding: 0.1rem 0 0.1rem 1rem;
  color: #475569;
}

.dark .prose-surface blockquote {
  border-left-color: #334155;
  color: #94a3b8;
}

.prose-surface hr {
  border: 0;
  border-top: 1px solid #e2e8f0;
  margin: 1.5rem 0;
}

.dark .prose-surface hr {
  border-top-color: #1e293b;
}

.prose-surface a {
  color: #2563eb;
  font-weight: 700;
}

.dark .prose-surface a {
  color: #93c5fd;
}

.prose-surface table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
}

.prose-surface th,
.prose-surface td {
  border: 1px solid #e2e8f0;
  padding: 0.85rem 0.95rem;
  text-align: left;
}

.dark .prose-surface th,
.dark .prose-surface td {
  border-color: #1e293b;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}