:root {
  color-scheme: dark;
  --bg: #020302;
  --surface: #0e0e0e;
  --surface-raised: #171717;
  --surface-hover: #1b1b1b;
  --surface-deep: #060606;
  --border: #2e2e2e;
  --border-strong: #424240;
  --text: #f8f8f4;
  --text-soft: #f4f4ef;
  --muted: #9b9b96;
  --subtle: #70706b;
  --accent: #fb5d13;
  --accent-solid: #c74005;
  --accent-muted: rgba(251, 93, 19, 0.12);
  --link: #ff7a2a;
  --link-hover: #ff9a61;
  --link-underline: rgba(251, 146, 60, 0.65);
  --success: #34d399;
  --personal: #60a5fa;
  --personal-solid: #2563eb;
  --personal-solid-hover: #3b82f6;
  --personal-border: rgba(96, 165, 250, 0.42);
  --personal-ring: rgba(96, 165, 250, 0.24);
  --personal-highlight: rgba(96, 165, 250, 0.32);
  --personal-highlight-selected: rgba(96, 165, 250, 0.5);
  --codex-mermaid-bg: rgb(10, 10, 10);
  --codex-mermaid-border: rgba(255, 255, 255, 0.06);
  --codex-mermaid-line: rgba(255, 255, 255, 0.72);
  --codex-mermaid-muted: rgba(255, 255, 255, 0.6);
  --danger: #f87171;
  --space-2xs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --radius-xs: 7px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --sidebar-width: 296px;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-synthesis: none;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  height: 100vh;
  overflow: hidden;
  border-right: 1px solid var(--border);
  background: var(--surface);
  padding: var(--space-lg);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 48px;
}

.sidebar-brand {
  display: grid;
  gap: var(--space-2xs);
  min-width: 0;
}

.sidebar-header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--space-xs);
}

.brand-title {
  margin: 0;
  color: var(--text);
  font-size: 1.55rem;
  font-weight: 850;
  line-height: 1;
  letter-spacing: -0.04em;
}

.brand-title span:last-child {
  color: var(--accent);
}

.sidebar-brand-link {
  width: fit-content;
  text-decoration: none;
}

.sidebar-brand-link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.workspace-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.2;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-block-start: 0;
}

.icon-button,
.mobile-nav-button {
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: var(--surface-raised);
  cursor: pointer;
}

.icon-button {
  display: none;
  width: 36px;
  padding: 0;
}

.mobile-nav-button {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding-inline: var(--space-md);
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.mobile-nav-button svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.8;
}

.search {
  position: relative;
  display: grid;
  align-items: center;
}

.search svg {
  position: absolute;
  inset-inline-start: var(--space-md);
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--subtle);
  stroke-linecap: round;
  stroke-width: 1.75;
  pointer-events: none;
}

.search input {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  background: var(--surface-deep);
  color: var(--text);
  padding: 0 var(--space-md) 0 36px;
  font-size: 0.82rem;
}

.search input::placeholder {
  color: var(--subtle);
}

.search input:focus-visible {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 2px rgba(244, 244, 244, 0.12);
}

.tree {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding-right: 2px;
}

.new-page-suggestion {
  border-block: 1px solid var(--border);
  padding-block: 10px 4px;
}

.new-page-suggestion details {
  margin: 0;
}

.new-page-suggestion summary {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--text);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 700;
  list-style: none;
  padding: 5px 8px;
}

.new-page-suggestion summary::-webkit-details-marker {
  display: none;
}

.new-page-suggestion summary:hover,
.new-page-suggestion summary:focus-visible {
  border-color: var(--link-hover);
  background: var(--link-hover);
  color: var(--text);
  outline: none;
}

.new-page-suggestion-note {
  margin: 8px 4px 0;
  color: var(--subtle);
  font-size: 0.8rem;
  line-height: 1.35;
}

.tree-root,
.tree-directory {
  min-width: 0;
  margin-block: var(--space-2xs);
}

.tree-directory {
  position: relative;
}

.tree-root-row,
.tree-directory summary {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 34px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 650;
  padding: 5px var(--space-sm);
}

.tree-root-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.tree-directory summary {
  cursor: pointer;
  list-style: none;
  padding-inline-end: 36px;
}

.tree-directory summary::-webkit-details-marker {
  display: none;
}

.tree-chevron {
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  fill: none;
  stroke: var(--subtle);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
  transition: transform 140ms ease;
}

.tree-directory summary > span,
.tree-root-row > span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-directory[open] > summary .tree-chevron {
  transform: rotate(90deg);
}

.tree-directory summary:hover,
.tree-directory:focus-within > summary,
.tree-root-row:hover,
.tree-root-row:focus-within,
.tree-file-row:hover .tree-file,
.tree-file-row:focus-within .tree-file,
.tree-file:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.tree-directory-actions {
  position: absolute;
  z-index: 1;
  inset-block-start: 5px;
  inset-inline-end: var(--space-xs);
  display: inline-flex;
  align-items: center;
  width: max-content;
  opacity: 0;
  pointer-events: none;
  transform: translateX(4px);
  transition: opacity 140ms ease, transform 140ms ease;
}

.tree-root-row:hover .tree-directory-actions,
.tree-root-row:focus-within .tree-directory-actions,
.tree-directory:hover > summary .tree-directory-actions,
.tree-directory:focus-within > summary .tree-directory-actions,
.tree-file-row:hover .tree-directory-actions,
.tree-file-row:focus-within .tree-directory-actions {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.tree-root-row .tree-directory-actions {
  position: static;
}

.tree-directory-action-button {
  display: inline-flex;
  flex: 0 0 24px;
  align-items: center;
  justify-content: center;
  width: 24px;
  min-width: 24px;
  height: 24px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  transition: color 140ms ease, background-color 140ms ease;
}

.tree-directory-action-button svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 2.2;
}

.tree-directory-action-button:hover,
.tree-directory-action-button:focus-visible {
  background: var(--surface-raised);
  color: var(--link-hover);
}

.tree-directory-action-button:focus-visible {
  outline: 2px solid rgba(251, 93, 19, 0.72);
  outline-offset: 2px;
}

.tree-page-delete-button:hover,
.tree-page-delete-button:focus-visible {
  color: #ff8a8a;
}

.tree-group {
  display: grid;
  gap: var(--space-2xs);
  padding-inline-start: var(--space-md);
}

.tree-root-group {
  padding-inline-start: 0;
}

.tree-file-row {
  position: relative;
  min-width: 0;
}

.tree-file {
  display: block;
  width: 100%;
  min-height: 34px;
  overflow: hidden;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 5px 60px 5px calc(var(--space-sm) + 10px + var(--space-sm));
  font-size: 0.82rem;
  font-weight: 520;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-file[data-active="true"] {
  background: var(--accent-muted);
  color: var(--link-hover);
  box-shadow: inset 2px 0 0 var(--accent);
}

.reader {
  min-width: 0;
  background: var(--bg);
}

.reader-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: 72px;
  border-bottom: 1px solid var(--border);
  background: rgba(2, 3, 2, 0.9);
  padding-block: var(--space-md);
  padding-inline-end: var(--space-xl);
  padding-inline-start: max(clamp(var(--space-xl), 4vw, var(--space-3xl)), calc((100% - 1080px) / 2 + var(--space-3xl)));
  backdrop-filter: blur(14px);
}

.reader-header h2 {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.25;
}

.reader-title {
  flex: 1 1 auto;
  min-width: 0;
}

.reader-actions {
  position: relative;
  display: flex;
  flex: 0 0 auto;
  gap: var(--space-xs);
}

.notification-toggle {
  position: relative;
}

.notification-badge {
  position: absolute;
  inset-block-start: -5px;
  inset-inline-end: -6px;
  display: inline-grid;
  min-width: 18px;
  min-height: 18px;
  place-items: center;
  border: 2px solid var(--bg);
  border-radius: 999px;
  background: var(--accent);
  color: #090909;
  font-size: 0.62rem;
  font-weight: 750;
  line-height: 1;
  padding-inline: 3px;
}

.notification-badge[hidden] {
  display: none;
}

.notification-page {
  min-width: 0;
  min-height: 100vh;
  background: var(--bg);
}

.notification-page-header {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  gap: var(--space-lg);
  border-bottom: 1px solid var(--border);
  background: rgba(2, 3, 2, 0.94);
  padding: var(--space-lg) clamp(var(--space-xl), 4vw, var(--space-3xl));
  backdrop-filter: blur(14px);
}

.notification-page-header > div {
  flex: 1 1 auto;
  min-width: 0;
}

.notification-page-header h1,
.notification-page-header p {
  margin: 0;
}

.notification-page-header h1 {
  color: var(--text);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
}

.notification-page-header #notification-count-status {
  margin-block-start: var(--space-2xs);
  color: var(--muted);
  font-size: 0.78rem;
}

.notification-page-header button:disabled {
  opacity: 0.45;
  pointer-events: none;
}

.scope-switcher {
  display: flex;
  gap: var(--space-xs);
}

.scope-switcher button {
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding-inline: var(--space-lg);
}

.scope-switcher button:hover,
.scope-switcher button:focus-visible {
  border-color: var(--border-strong);
  color: var(--text-soft);
}

.scope-switcher button:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

.scope-switcher button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-muted);
  color: var(--link-hover);
}

.notification-filters {
  position: sticky;
  z-index: 9;
  top: 88px;
  border-bottom: 1px solid var(--border);
  background: rgba(2, 3, 2, 0.94);
  padding: var(--space-md) clamp(var(--space-xl), 4vw, var(--space-3xl));
  backdrop-filter: blur(14px);
}

.notification-filter-row {
  display: grid;
  align-items: start;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: var(--space-md);
}

.notification-filter-row + .notification-filter-row {
  margin-block-start: var(--space-sm);
}

.notification-filter-label {
  min-height: 36px;
  align-content: center;
  color: var(--subtle);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.notification-filter-options {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.notification-filter-options button {
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 650;
  padding: var(--space-sm) var(--space-lg);
}

.notification-filter-options button:hover {
  border-color: var(--border-strong);
  color: var(--text-soft);
}

.notification-filter-options button:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

.notification-filter-options button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-muted);
  color: var(--link-hover);
}

.notification-filter-options button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.notification-author-options {
  display: contents;
}

.notification-list {
  display: grid;
  width: 100%;
  align-content: start;
  padding: var(--space-xl) clamp(var(--space-xl), 4vw, var(--space-3xl)) 72px;
}

.notification-list > .empty-state {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: var(--space-xl);
}

.notification-item {
  display: grid;
  width: 100%;
  gap: var(--space-xs);
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: 0;
  background: var(--surface);
  color: inherit;
  padding: var(--space-lg) var(--space-xl);
  text-align: start;
}

.notification-item:first-of-type {
  border-start-start-radius: var(--radius-md);
  border-start-end-radius: var(--radius-md);
}

.notification-item:last-child,
.notification-item:has(+ .notification-load-more) {
  border-bottom: 1px solid var(--border);
  border-end-start-radius: var(--radius-md);
  border-end-end-radius: var(--radius-md);
}

.notification-item[data-interactive="true"] {
  cursor: pointer;
}

.notification-item[data-interactive="true"]:hover,
.notification-item:focus-within {
  border-color: var(--border-strong);
  background: var(--surface-hover);
}

.notification-item:focus-within {
  position: relative;
  z-index: 1;
}

.notification-item[data-read="false"] {
  box-shadow: inset 3px 0 0 var(--accent);
}

.notification-item-heading,
.notification-item-meta,
.notification-item-status {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
}

.notification-item-heading strong {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--text);
  font-size: 0.92rem;
}

.notification-item-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--space-sm);
}

.notification-view-button {
  min-height: 30px;
  background: transparent;
  padding: var(--space-xs) var(--space-sm);
  text-align: center;
}

.notification-view-button:disabled {
  cursor: default;
  opacity: 0.45;
}

.notification-view-button:disabled:hover {
  border-color: var(--border);
  background: transparent;
  color: var(--text-soft);
}

.notification-unread-label {
  flex: 0 0 auto;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: transparent;
  color: var(--link-hover);
  cursor: pointer;
  font-size: 0.62rem;
  font-weight: 700;
  padding: 2px 6px;
  text-transform: uppercase;
}

.notification-unread-label:focus-visible,
.notification-view-button:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

.notification-document,
.notification-summary,
.notification-item-meta,
.notification-item-status {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.45;
}

.notification-document {
  color: var(--text-soft);
  font-weight: 600;
}

.notification-summary {
  color: var(--muted);
}

.notification-item-meta,
.notification-item-status {
  color: var(--subtle);
}

.notification-item-status {
  justify-content: flex-start;
  color: var(--warning);
}

.notification-load-more {
  justify-self: center;
  margin-block-start: var(--space-xl);
}

.path {
  margin: 0 0 var(--space-xs);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.15;
}

.markdown-body {
  width: min(100%, 980px);
  padding: var(--space-2xl) clamp(var(--space-xl), 4vw, var(--space-3xl)) 72px;
  color: #e7e7e2;
  font-size: 1rem;
  line-height: 1.72;
}

.markdown-body > :first-child {
  margin-top: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  color: var(--text);
  line-height: 1.25;
  scroll-margin-top: 98px;
}

.markdown-body h1 {
  margin: 0 0 var(--space-xl);
  font-size: clamp(1.75rem, 2.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.markdown-body h2 {
  margin: var(--space-2xl) 0 var(--space-md);
  font-size: 1.3rem;
  font-weight: 650;
}

.markdown-body h3 {
  margin: var(--space-xl) 0 var(--space-sm);
  font-size: 1.08rem;
  font-weight: 650;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre,
.markdown-body table,
.markdown-body .mermaid-frame,
.markdown-body .mermaid {
  margin-block: 0 var(--space-lg);
}

.markdown-body a {
  color: var(--link);
  text-decoration-color: var(--link-underline);
  text-underline-offset: 3px;
}

.markdown-body a:hover {
  color: var(--link-hover);
  text-decoration-color: currentColor;
}

.markdown-body code {
  border: 1px solid var(--border);
  border-radius: 5px;
  background: #101013;
  color: #f0f0f2;
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.12em 0.35em;
}

.markdown-body pre {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #0d0d10;
  padding: 16px;
}

.markdown-body pre code {
  border: 0;
  background: transparent;
  padding: 0;
}

.markdown-body blockquote {
  border-left: 3px solid var(--border-strong);
  color: var(--muted);
  padding-left: 16px;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
}

.markdown-body th {
  background: var(--surface-raised);
}

.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
}

.comment-panel {
  margin-block-start: 44px;
  border-top: 1px solid var(--border);
  padding-block-start: 28px;
}

.comment-panel h2 {
  margin-block: 0 16px;
}

.comment-form {
  display: grid;
  gap: 14px;
  max-width: 720px;
}

.comment-field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.35;
}

.comment-field input,
.comment-field textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  background: #09090a;
  color: var(--text);
  padding: 10px 12px;
}

.comment-field input {
  min-height: 40px;
}

.comment-field textarea {
  min-height: 132px;
  resize: vertical;
}

.comment-field input:focus,
.comment-field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}

.comment-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.comment-actions button {
  min-height: 40px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
  padding: 0 16px;
}

.comment-actions button:hover,
.comment-actions button:focus-visible {
  background: var(--link-hover);
  border-color: var(--link-hover);
  outline: none;
}

.comment-actions button:disabled {
  cursor: progress;
  opacity: 0.72;
}

.comment-status {
  display: flex;
  align-items: center;
  min-height: 40px;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.35;
}

.comment-form[data-state="success"] .comment-status {
  color: var(--success);
}

.comment-form[data-state="error"] .comment-status {
  color: var(--danger);
}

.sidebar-comment-form {
  gap: 10px;
  padding: 8px 4px 6px;
}

.sidebar-comment-form .comment-field {
  gap: 5px;
  font-size: 0.82rem;
}

.sidebar-comment-form .comment-field input {
  min-height: 36px;
}

.sidebar-comment-form .comment-field textarea {
  min-height: 84px;
  padding-block: 8px;
}

.sidebar-comment-form .comment-actions {
  gap: 10px;
}

.sidebar-comment-form .comment-actions button {
  min-height: 32px;
  font-size: 0.82rem;
  font-weight: 600;
  padding-inline: 10px;
}

.sidebar-comment-form .comment-status {
  min-height: 36px;
  font-size: 0.82rem;
}

.mermaid-frame {
  position: relative;
  overflow: auto;
  width: min(100%, var(--mermaid-natural-block-width, 100%), 56rem);
  max-width: none;
  border: 1px solid var(--codex-mermaid-border);
  border-radius: 24px;
  background: var(--codex-mermaid-bg);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
  padding: 28px 36px 28px 28px;
}

.mermaid-frame:fullscreen {
  display: grid;
  place-items: center;
  border-radius: 0;
  padding: 48px;
}

.mermaid-frame .mermaid {
  margin: 0;
  padding: 12px 16px;
  overflow-x: auto;
  background: transparent;
}

.mermaid-toolbar {
  position: absolute;
  inset-block-start: 28px;
  inset-inline-end: 28px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 16px;
}

.mermaid-action {
  position: relative;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: #a8a8a8;
  cursor: pointer;
}

.mermaid-action:hover,
.mermaid-action:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: #f4f4f5;
  outline: none;
}

.mermaid-action-fullscreen::before,
.mermaid-action-fullscreen::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: currentColor;
  border-style: solid;
}

.mermaid-action-fullscreen::before {
  inset-block-start: 7px;
  inset-inline-start: 7px;
  border-width: 2px 0 0 2px;
}

.mermaid-action-fullscreen::after {
  inset-block-end: 7px;
  inset-inline-end: 7px;
  border-width: 0 2px 2px 0;
}

.mermaid-action-copy::before,
.mermaid-action-copy::after {
  content: "";
  position: absolute;
  width: 13px;
  height: 13px;
  border: 2px solid currentColor;
  border-radius: 5px;
}

.mermaid-action-copy::before {
  inset-block-start: 6px;
  inset-inline-start: 9px;
  opacity: 0.72;
}

.mermaid-action-copy::after {
  inset-block-start: 10px;
  inset-inline-start: 5px;
  background: var(--codex-mermaid-bg);
}

.mermaid-action-copy[data-copied="true"] {
  color: #d94b16;
}

.mermaid svg {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  margin-inline: 0;
}

.mermaid .node .label,
.mermaid .cluster .label,
.mermaid .edgeLabel {
  color: var(--text);
  font-family: var(--font-sans);
  letter-spacing: 0;
}

.mermaid .edgeLabel {
  color: var(--text);
}

.mermaid span.edgeLabel,
.mermaid span.edgeLabel p {
  background: var(--codex-mermaid-bg);
}

.mermaid g.edgeLabel foreignObject {
  overflow: visible;
}

.mermaid span.edgeLabel {
  display: block;
  box-sizing: content-box;
  width: 100%;
  padding: var(--space-xs) var(--space-sm);
  transform: translate(calc(-1 * var(--space-sm)), calc(-1 * var(--space-xs)));
}

.mermaid .edgeLabel p {
  margin: 0;
}

.mermaid .edgeLabel rect {
  fill: var(--codex-mermaid-bg);
  opacity: 0.5;
}

.mermaid .flowchart-link {
  stroke: var(--codex-mermaid-line);
}

.mermaid .marker {
  fill: var(--codex-mermaid-line);
  stroke: var(--codex-mermaid-line);
}

.mermaid .cluster rect {
  fill: rgba(255, 255, 255, 0.06);
  stroke: rgba(255, 255, 255, 0.16);
}

.empty-state {
  color: var(--muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* Collaborative comment interface */
:root {
  --panel-width: 360px;
  --warning: #fbbf24;
  --focus: rgba(255, 122, 42, 0.68);
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.login-screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-card {
  --login-control-width: 360px;
  --login-card-padding: var(--space-2xl);
  display: grid;
  width: min(100%, calc(var(--login-control-width) + var(--login-card-padding) + var(--login-card-padding) + 2px));
  gap: var(--space-2xl);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: var(--login-card-padding);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
}

.login-card h1,
.login-card p { margin: 0; }

.login-card > .brand-title {
  font-size: 2rem;
}

.login-actions,
.identity,
.suggestion-region,
.annotation-panel,
.document-discussions,
.thread-list,
.thread-card,
.composer,
.modal-content,
.page-form {
  display: grid;
  gap: 12px;
}

.login-email-form {
  display: grid;
  gap: var(--space-md);
  border-top: 1px solid var(--border);
  padding-top: var(--space-xl);
}

.login-email-title {
  margin: 0;
  color: var(--text-soft);
  font-size: 1rem;
  font-weight: 650;
}

.login-email-field {
  display: grid;
  gap: var(--space-sm);
  color: var(--muted);
  font-size: 0.78rem;
}

.login-email-field input {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: 0;
  background: var(--surface-deep);
  color: var(--text);
  padding: 8px 10px;
}

.login-email-field input:focus-visible {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 2px rgba(244, 244, 244, 0.12);
}

.login-email-submit {
  width: 100%;
  min-height: 40px;
  margin-block-start: var(--space-xs);
  font-size: 0.84rem;
}

.login-email-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-inline: calc(-1 * var(--space-sm));
}

.login-email-action {
  min-height: 30px;
}

.login-email-notice {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
  text-align: center;
}

.login-provider-button {
  width: 100%;
  min-height: 40px;
  font-size: 0.84rem;
}

.login-google-option {
  display: grid;
  justify-items: center;
  width: min(100%, var(--login-control-width, 280px));
  height: 40px;
  min-height: 40px;
  margin-inline: auto;
  overflow: hidden;
}

.login-email-modal-backdrop {
  position: fixed;
  z-index: 80;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.72);
  padding: var(--space-lg);
}

.login-email-modal {
  display: grid;
  width: min(100%, 420px);
  max-height: calc(100vh - 48px);
  overflow: auto;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.48);
  gap: var(--space-xl);
  padding: var(--space-xl);
}

.login-email-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.login-email-modal-header h2 {
  margin: 0;
  color: var(--text-soft);
  font-size: 1.08rem;
  font-weight: 650;
}

.login-email-modal-close {
  display: grid;
  width: 32px;
  min-height: 32px;
  place-items: center;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
}

.login-email-modal-close:hover,
.login-email-modal-close:focus-visible {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  color: var(--text);
}

.login-email-modal-content {
  display: grid;
  gap: var(--space-lg);
}

.login-email-modal-content .login-email-form {
  border-top: 0;
  padding-top: 0;
}

.app-shell {
  overflow-x: clip;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--panel-width);
  transition: grid-template-columns 320ms cubic-bezier(0.16, 1, 0.3, 1);
}

.app-shell.comments-closed { grid-template-columns: var(--sidebar-width) minmax(0, 1fr) 0; }
.app-shell.notifications-open { grid-template-columns: var(--sidebar-width) minmax(0, 1fr) 0; }

.sidebar {
  gap: var(--space-lg);
}

.identity {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  border-block: 1px solid var(--border);
  padding: var(--space-md) 0;
}

.identity-details {
  display: grid;
  min-width: 0;
  gap: var(--space-2xs);
}

.identity p { margin: 0; }
.identity-name { overflow: hidden; color: var(--text-soft); font-size: 0.82rem; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.identity-role, .thread-meta, .message-meta { color: var(--subtle); font-size: 0.72rem; line-height: 1.3; }
.identity-actions { display: flex; flex: 0 0 auto; gap: var(--space-2xs); }

.quiet-icon-button {
  display: inline-grid;
  flex: 0 0 auto;
  width: 32px;
  min-height: 32px;
  place-items: center;
  border-color: transparent;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--muted);
}

.quiet-icon-button svg,
.selection-actions svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.quiet-icon-button:hover,
.quiet-icon-button:focus-visible,
.quiet-icon-button[aria-expanded="true"],
.quiet-icon-button[aria-current="page"] {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  color: var(--text-soft);
}

#sidebar-close {
  display: none;
}

.reader {
  min-height: 100vh;
}

.reader-content {
  width: min(100%, 1080px);
  margin-inline: auto;
}

.markdown-body {
  width: 100%;
  padding-block-end: 32px;
}

.suggestion-region {
  max-height: 44vh;
  overflow: auto;
  border-top: 1px solid var(--border);
  padding: var(--space-lg) 0 var(--space-xs);
  gap: var(--space-sm);
}

.region-heading,
.panel-header,
.thread-card-header,
.composer-actions,
.modal-actions,
.message-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.region-heading,
.panel-header,
.thread-card-header { justify-content: space-between; }
.region-heading h2, .panel-header h2, .document-discussions h2 { margin: 0; color: var(--text-soft); font-size: 0.95rem; font-weight: 550; line-height: 1.25; }

.suggestion-region > #suggestions {
  display: grid;
  gap: var(--space-sm);
}

.suggestion-composer {
  gap: var(--space-sm);
}

.composer-actions {
  flex-wrap: wrap;
}

.composer-actions .form-status:empty {
  display: none;
}

.annotation-panel {
  position: sticky;
  top: 0;
  align-content: start;
  grid-auto-rows: max-content;
  width: var(--panel-width);
  height: 100vh;
  overflow: auto;
  border-left: 1px solid var(--border);
  background: var(--surface);
  gap: var(--space-lg);
  opacity: 1;
  padding: var(--space-lg);
  transform: translateX(0);
  transition:
    transform 320ms cubic-bezier(0.16, 1, 0.3, 1),
    opacity 180ms ease,
    visibility 0s linear 0s;
  visibility: visible;
  will-change: transform;
}

.annotation-panel.is-closed {
  opacity: 0;
  pointer-events: none;
  transform: translateX(100%);
  transition-delay: 0s, 0s, 320ms;
  visibility: hidden;
}

.panel-header {
  min-height: 36px;
}

.panel-close { display: inline-grid; }
.comment-panel-toggle {
  display: inline-grid;
  width: 38px;
  min-height: 38px;
  margin-inline-start: auto;
  border-color: var(--border);
  border-radius: var(--radius-sm);
  background: #111111;
  color: var(--muted);
}

.comment-panel-toggle svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.3;
}

.comment-panel-toggle:hover,
.comment-panel-toggle:focus-visible,
.comment-panel-toggle[aria-expanded="true"] {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  color: var(--text);
}

.comment-panel-toggle:focus-visible {
  outline: 2px solid rgba(255, 122, 42, 0.68);
  outline-offset: 2px;
}

.thread-status-filter {
  width: fit-content;
}

.selection-mode-tools {
  display: grid;
  gap: 8px;
}

.selection-mode-toggle {
  display: inline-flex;
  width: fit-content;
  min-height: 34px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-raised);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 650;
  padding: 6px 10px;
}

.selection-mode-toggle svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.selection-mode-toggle:hover,
.selection-mode-toggle:focus-visible,
.selection-mode-toggle[aria-pressed="true"] {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  color: var(--text);
}

.selection-mode-toggle[aria-pressed="true"] {
  border-color: rgba(251, 146, 60, 0.48);
  color: var(--link-hover);
}

#rewrite-selection-mode-toggle:hover,
#rewrite-selection-mode-toggle:focus-visible,
#rewrite-selection-mode-toggle[aria-pressed="true"] {
  border-color: var(--personal-border);
  background: var(--personal-ring);
  color: var(--personal);
}

#rewrite-selection-mode-toggle:focus-visible { outline-color: var(--personal); }

.selection-mode-instruction {
  margin: 0;
  color: var(--subtle);
  font-size: 0.76rem;
  line-height: 1.4;
}

.markdown-body[data-selection-mode="true"],
.markdown-body[data-selection-mode="true"] a,
.markdown-body[data-selection-mode="true"] code {
  cursor: crosshair;
}

.markdown-body[data-selection-purpose="rewrite"]::selection,
.markdown-body[data-selection-purpose="rewrite"] *::selection {
  background: var(--personal-highlight-selected);
  color: inherit;
}

.annotation-composer {
  display: grid;
  gap: var(--space-lg);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-lg);
}

.annotation-composer .composer {
  gap: var(--space-md);
}

.selection-preview {
  display: -webkit-box;
  overflow: hidden;
  margin: 0;
  border-left: 2px solid var(--border-strong);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
  padding-left: var(--space-md);
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.document-discussions {
  border-top: 1px solid var(--border);
  margin: 0 clamp(var(--space-xl), 4vw, var(--space-3xl)) 56px;
  padding-top: var(--space-xl);
}

.thread-list { gap: var(--space-md); }

.thread-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #101010;
  padding: var(--space-md);
}

.thread-card:focus-visible {
  outline: 2px solid rgba(255, 107, 26, 0.72);
  outline-offset: 2px;
}

.thread-card .thread-meta,
.thread-card .message-meta {
  color: var(--muted);
}

.thread-card-header > .text-button {
  margin-inline-start: auto;
}

.thread-card > .text-button {
  justify-self: start;
  margin-inline: -10px;
}

.message-header {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.message-header .message-meta {
  min-width: 0;
}

.message-meta {
  min-width: 0;
}

.comment-message-content {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-sm);
}

.comment-message-content .message-body {
  min-width: 0;
  overflow-wrap: anywhere;
}

.comment-message-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  color: var(--subtle);
  font-size: 0.7rem;
  line-height: 1.4;
}

.comment-message-meta .message-author,
.comment-message-meta .message-date {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.comment-message-meta .message-date {
  flex: 0 0 auto;
  text-align: end;
}

#annotation-threads .thread-list {
  gap: 0;
}

#annotation-threads .thread-card {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
}

#annotation-threads .thread-card + .thread-card {
  border-top: 1px solid var(--border);
  padding-top: var(--space-lg);
}

#annotation-threads .thread-card:not(:last-child) {
  padding-bottom: var(--space-lg);
}

#annotation-threads .thread-card[data-selected="true"] {
  border-color: transparent;
  box-shadow: none;
}

.message-author {
  overflow: hidden;
  color: var(--link);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.message-date {
  color: var(--subtle);
  font-size: 0.62rem;
  line-height: 1.2;
}

.message-header-tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--space-xs);
}

.thread-card .message-actions {
  flex: 0 0 auto;
  gap: var(--space-xs);
  width: max-content;
  max-width: max-content;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateX(4px);
  transition:
    opacity 140ms ease,
    transform 140ms ease;
}

.message:hover .message-actions,
.message:focus-within .message-actions {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.message-action-button {
  position: relative;
  z-index: 1;
  display: inline-flex;
  flex: 0 0 24px;
  width: 24px;
  min-width: 24px;
  height: 24px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #8f8f8f;
  cursor: pointer;
  padding: 0;
  transition:
    color 140ms ease,
    background-color 140ms ease;
}

.message-action-button svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
}

.message-action-button:hover,
.message-action-button:focus-visible {
  background: #202020;
  color: #ff6b1a;
}

.message-action-delete-button:hover,
.message-action-delete-button:focus-visible {
  color: #ff8a8a;
}

.thread-status-button {
  color: var(--accent);
}

.thread-status-button:hover,
.thread-status-button:focus-visible {
  background: var(--accent-muted);
  color: var(--link-hover);
}

.message-action-button:focus-visible {
  outline: 2px solid rgba(255, 107, 26, 0.72);
  outline-offset: 2px;
}

.message-action-button:disabled {
  cursor: progress;
  opacity: 0.6;
}

.thread-card .composer:not(.inline-composer) textarea {
  min-height: 88px;
  height: 88px;
}

.thread-card .composer textarea::placeholder,
.thread-card .composer input::placeholder {
  color: var(--muted);
}

.thread-card[data-selected="true"] { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-muted); }

.inline-composer {
  grid-template-columns: minmax(0, 1fr) 34px;
  align-items: start;
  gap: var(--space-sm);
  padding-top: var(--space-xs);
}

.inline-composer > label {
  min-width: 0;
  grid-column: 1;
  grid-row: 1;
}

.inline-composer .composer-actions {
  display: contents;
}

.inline-composer .inline-send-button {
  display: inline-grid;
  width: 34px;
  min-width: 34px;
  height: 34px;
  min-height: 34px;
  grid-column: 2;
  grid-row: 1;
  place-items: center;
  padding: 0;
}

.inline-send-button svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.inline-composer .form-status {
  grid-column: 1 / -1;
  grid-row: 2;
}

.thread-meta, .message-meta, .message-body, .empty-state, .form-status { margin: 0; }
.message { display: grid; gap: var(--space-xs); }
.message + .message { border-top: 1px solid var(--border); padding-top: var(--space-md); }
.message-body { color: var(--text-soft); font-size: 0.88rem; white-space: pre-wrap; line-height: 1.5; }
.tombstone { color: var(--subtle); font-style: italic; }

.composer label, .page-form label {
  display: grid;
  gap: var(--space-sm);
  color: var(--muted);
  font-size: 0.78rem;
}

.page-path-field {
  display: flex;
  align-items: center;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-deep);
}

.page-directory-picker legend {
  color: var(--muted);
  font-size: 0.78rem;
}

.page-path-prefix {
  flex: 0 1 auto;
  max-width: 52%;
  overflow: hidden;
  color: var(--subtle);
  padding-inline-start: var(--space-md);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-form .page-path-field input {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
  border: 0;
  background: transparent;
  padding-inline-start: var(--space-xs);
}

.page-path-field:focus-within {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 2px rgba(244, 244, 244, 0.12);
}

.page-form .page-path-field input:focus-visible {
  box-shadow: none;
}

.page-directory-picker {
  min-width: 0;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
}

.page-directory-picker legend {
  padding-inline: var(--space-xs);
}

.page-directory-options {
  display: grid;
  max-height: 190px;
  overflow: auto;
  gap: var(--space-2xs);
}

.page-directory-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 32px;
  border-radius: var(--radius-xs);
  color: var(--muted);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm) var(--space-xs) var(--directory-inset);
}

.page-directory-option:hover,
.page-directory-option:focus-within,
.page-directory-option:has(input:checked) {
  background: var(--surface-hover);
  color: var(--text-soft);
}

.page-form .page-directory-option input {
  flex: 0 0 auto;
  width: 14px;
  min-width: 14px;
  height: 14px;
  margin: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
  accent-color: var(--accent);
}

.page-form .page-directory-option input:focus-visible {
  outline: 2px solid rgba(251, 93, 19, 0.72);
  outline-offset: 2px;
  box-shadow: none;
}

.page-directory-option span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.composer input,
.composer textarea,
.page-form input,
.page-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: 0;
  background: var(--surface-deep);
  color: var(--text);
  padding: var(--space-md);
  resize: vertical;
  font-size: 0.86rem;
  line-height: 1.45;
}

.page-form textarea[name="content"] {
  min-height: min(54vh, 620px);
  font-family: var(--font-mono);
}

.composer input::placeholder,
.composer textarea::placeholder,
.page-form input::placeholder,
.page-form textarea::placeholder {
  color: var(--subtle);
}

.composer input:focus-visible,
.composer textarea:focus-visible,
.page-form input:focus-visible,
.page-form textarea:focus-visible {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 2px rgba(244, 244, 244, 0.12);
}

.inline-composer input {
  height: 34px;
  padding: 6px 10px;
  resize: none;
}

.primary-button,
.danger-button,
.text-button,
.thread-link {
  min-height: 34px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 650;
  padding: 5px 10px;
}

.primary-button {
  border: 1px solid var(--accent);
  background: var(--accent-solid);
  color: #fffdf8;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.primary-button:hover,
.primary-button:focus-visible { border-color: var(--link-hover); background: #df4a08; color: #fff; }

.text-button {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  text-align: left;
}

.thread-link {
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--text-soft);
  text-align: left;
}

.login-provider-button {
  width: min(100%, var(--login-control-width, 280px));
  height: 40px;
  min-height: 40px;
  margin-inline: auto;
  padding-block: 0;
  text-align: center;
}

.login-development-button {
  border-color: var(--border-strong);
  background: #111111;
  color: var(--text-soft);
  box-shadow: none;
}

.login-development-button:hover,
.login-development-button:focus-visible {
  border-color: #777773;
  background: var(--surface-hover);
  color: var(--text);
}

.login-email-actions .login-email-action {
  padding: 0 var(--space-sm);
}

.login-email-actions .login-email-action:last-child {
  margin-inline-start: auto;
}

.text-button:hover,
.thread-link:hover { border-color: var(--border-strong); background: var(--surface-hover); color: var(--text-soft); }

.danger-button { border: 1px solid var(--danger); background: transparent; color: var(--danger); }
.form-status.error, .empty-state.error { color: var(--danger); }
.empty-state.warning { color: var(--warning); }
.checkbox-field { color: var(--muted); font-size: 0.86rem; }

.selection-actions {
  position: fixed;
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-soft);
}

.selection-actions > button {
  display: grid;
  width: 32px;
  height: 32px;
  min-height: 32px;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: #111111;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.28);
  color: inherit;
  cursor: pointer;
  padding: 0;
}

.selection-actions > button:hover,
.selection-actions > button:focus-visible {
  border-color: var(--accent);
  background: var(--surface-hover);
  color: var(--link-hover);
}

.selection-actions[data-purpose="rewrite"] > button:hover,
.selection-actions[data-purpose="rewrite"] > button:focus-visible {
  border-color: var(--personal);
  color: var(--personal);
}

.selection-actions > button:disabled { cursor: wait; opacity: 0.58; }
.selection-action-status:not(:empty) { align-self: center; max-width: 220px; margin: 0; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: #111111; color: var(--muted); font-size: 0.72rem; line-height: 1.35; padding: var(--space-sm); }

.collaboration-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--border);
}

.collaboration-tabs:has(#rewrites-tab[hidden]) { grid-template-columns: repeat(2, 1fr); }

.collaboration-tabs [role="tab"] {
  min-height: 40px;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 650;
}

.collaboration-tabs [role="tab"]:hover,
.collaboration-tabs [role="tab"]:focus-visible { background: var(--surface-hover); color: var(--text-soft); }
.collaboration-tabs [role="tab"][aria-selected="true"] { border-bottom-color: var(--accent); color: var(--text); }
.tab-count { display: inline-grid; min-width: 20px; min-height: 20px; place-items: center; border-radius: 999px; background: var(--accent-muted); color: var(--link-hover); font-size: 0.7rem; padding-inline: var(--space-2xs); }
#rewrites-tab[aria-selected="true"] { border-bottom-color: var(--personal); }
#rewrites-tab .tab-count { margin-inline-start: var(--space-sm); background: var(--personal-ring); color: var(--personal); }

#comments-panel,
#history-panel,
#rewrites-panel { display: grid; gap: var(--space-lg); }
#comments-panel[hidden],
#history-panel[hidden],
#rewrites-panel[hidden] { display: none; }

#document-history { display: grid; gap: 0; }

.history-event {
  display: grid;
  gap: var(--space-sm);
  padding: 0;
}

.history-event + .history-event {
  border-top: 1px solid var(--border);
  padding-top: var(--space-lg);
}

.history-event:not(:last-child) {
  padding-bottom: var(--space-lg);
}

.history-event > div:first-child,
.history-event-actions { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); }
.history-event strong { color: var(--text-soft); font-size: 0.82rem; }
.history-event time,
.history-event p { margin: 0; color: var(--muted); font-size: 0.74rem; line-height: 1.4; }
.history-event-actions {
  justify-content: flex-start;
  margin-inline-start: -11px;
}

.document-diff {
  max-height: 62vh;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-deep);
  color: var(--muted);
  white-space: pre-wrap;
  padding: var(--space-md);
}

.document-diff span { display: block; }
.document-diff .diff-added { background: rgba(47, 158, 68, 0.18); color: #b7efc5; }
.document-diff .diff-removed { background: rgba(224, 49, 49, 0.18); color: #ffc9c9; text-decoration: line-through; }
.document-diff [data-notification-target="true"] {
  scroll-margin-block: var(--space-xl);
  outline: 2px solid var(--accent);
  outline-offset: var(--space-2xs);
  animation: notification-spotlight 1.4s ease-out;
}

@keyframes notification-spotlight {
  from { box-shadow: 0 0 0 var(--space-sm) var(--accent-muted); }
  to { box-shadow: 0 0 0 0 transparent; }
}

.rewrite-region,
.rewrite-marker-list,
.rewrite-proposal-list { display: grid; gap: var(--space-md); }
.rewrite-region + .rewrite-region { border-top: 1px solid var(--border); padding-top: var(--space-lg); }
.rewrite-region h3,
.rewrite-region h4,
.rewrite-region h5,
.token-settings-modal h3 { margin: 0; color: var(--text-soft); }
.rewrite-region h3 { font-size: 0.9rem; }
.rewrite-region h4 { font-size: 0.86rem; line-height: 1.35; }
.rewrite-region h5 { font-size: 0.76rem; }
.quiet-icon-button.rewrite-refresh-button { color: var(--personal); }
.quiet-icon-button.rewrite-refresh-button:hover,
.quiet-icon-button.rewrite-refresh-button:focus-visible {
  border-color: var(--personal-border);
  background: var(--personal-ring);
  color: var(--personal);
}
.rewrite-region-heading,
.rewrite-marker-card header,
.rewrite-proposal-header,
.rewrite-proposal-header-tools,
.rewrite-card-actions,
.personal-token-row,
.token-secret-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); }

.rewrite-marker-card,
.rewrite-proposal-card {
  display: grid;
  gap: var(--space-md);
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #101010;
  padding: var(--space-md);
}

.rewrite-proposal-card { cursor: pointer; }
.rewrite-proposal-card[data-owned="true"] { border-color: var(--personal-border); }
.rewrite-proposal-card[data-selected="true"] { border-color: var(--personal); box-shadow: 0 0 0 2px var(--personal-ring); cursor: default; }
.rewrite-proposal-card[data-owned="true"][data-selected="true"] { border-color: var(--personal); box-shadow: 0 0 0 2px var(--personal-ring); }
.rewrite-proposal-card:focus-visible { outline: 2px solid var(--personal); outline-offset: 2px; }
.rewrite-marker-card header,
.rewrite-proposal-header { align-items: flex-start; }
.rewrite-marker-header-copy { display: grid; gap: var(--space-2xs); min-width: 0; }
.rewrite-proposal-header h4 { min-width: 0; }
.rewrite-proposal-header-tools { flex: 0 0 auto; align-items: center; gap: var(--space-xs); }
.rewrite-marker-card time,
.rewrite-proposal-source,
.rewrite-path { margin: 0; color: var(--subtle); font-size: 0.7rem; line-height: 1.4; }
.rewrite-path { overflow-wrap: anywhere; }
.rewrite-marker-card blockquote { display: -webkit-box; overflow: hidden; margin: 0; color: var(--text-soft); font-size: 0.8rem; line-height: 1.5; -webkit-box-orient: vertical; -webkit-line-clamp: 4; }
.rewrite-card-actions { justify-content: flex-start; flex-wrap: wrap; margin-inline: -10px; }
.rewrite-card-actions > .text-button { padding-inline: 10px; }
.rewrite-card-actions .empty-state { flex: 1 1 100%; }
.rewrite-marker-actions,
.proposal-editorial-actions { flex: 0 0 auto; flex-wrap: nowrap; gap: var(--space-xs); margin-inline: 0; }

#rewrites-panel .message-author { color: var(--personal); }
#rewrites-panel .message-action-button:hover,
#rewrites-panel .message-action-button:focus-visible { color: var(--personal); }
#rewrites-panel .message-action-button:focus-visible { outline-color: var(--personal); }
#rewrites-panel .message-action-delete-button:hover,
#rewrites-panel .message-action-delete-button:focus-visible { color: var(--danger); outline-color: var(--danger); }
#rewrites-panel .primary-button { border-color: var(--personal); background: var(--personal-solid); }
#rewrites-panel .primary-button:hover,
#rewrites-panel .primary-button:focus-visible { border-color: var(--personal); background: var(--personal-solid-hover); }

.proposal-status { flex: 0 0 auto; border: 1px solid var(--border-strong); border-radius: 999px; color: var(--muted); font-size: 0.68rem; font-weight: 650; padding: var(--space-2xs) var(--space-sm); }
.proposal-status-accepted { border-color: var(--success); color: var(--success); }
.proposal-status-rejected { border-color: var(--danger); color: var(--danger); }
.proposal-comparison { display: grid; gap: var(--space-md); }

.proposal-passage { min-width: 0; border: 1px solid var(--border); border-radius: var(--radius-xs); background: var(--surface-raised); padding: var(--space-md); }
.proposal-passage > p,
.proposal-rationale p { margin: var(--space-sm) 0 0; color: var(--text-soft); font-size: 0.8rem; line-height: 1.55; overflow-wrap: anywhere; white-space: pre-wrap; }
.proposal-passage[data-state="changed"],
.proposal-passage[data-state="orphaned"] { border-style: dashed; border-color: var(--warning); }
.proposal-rendered-markdown { color: var(--text-soft); font-size: 0.8rem; line-height: 1.55; overflow-wrap: anywhere; }
.proposal-rendered-markdown > :first-child { margin-top: var(--space-sm); }
.proposal-rendered-markdown > :last-child { margin-bottom: 0; }
.proposal-rendered-markdown pre { max-width: 100%; overflow: auto; }
.proposal-rationale,
.proposal-discussion { display: grid; gap: var(--space-sm); border-top: 1px solid var(--border); padding-top: var(--space-md); }
.proposal-messages { display: grid; }
.proposal-editorial-actions:empty { display: none; }

.token-settings-modal { width: min(100%, 760px); }
.token-settings-modal .modal-content,
.personal-token-form,
.personal-token-list { display: grid; gap: var(--space-md); }
.personal-token-form fieldset { display: grid; gap: var(--space-sm); margin: 0; border: 1px solid var(--border); border-radius: var(--radius-xs); padding: var(--space-md); }
.personal-token-form legend { color: var(--text-soft); font-size: 0.82rem; font-weight: 650; padding-inline: var(--space-xs); }
.token-scope { display: flex; align-items: center; gap: var(--space-sm); color: var(--muted); font-size: 0.8rem; }
.token-scope input { width: 16px; height: 16px; margin: 0; accent-color: var(--accent); }
.token-secret-notice { display: grid; gap: var(--space-sm); border: 1px solid var(--warning); border-radius: var(--radius-sm); padding: var(--space-md); }
.token-secret-notice p,
.personal-token-row p { margin: 0; color: var(--muted); font-size: 0.76rem; line-height: 1.4; overflow-wrap: anywhere; }
.token-secret-row input { min-width: 0; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.personal-token-list { border-top: 1px solid var(--border); padding-top: var(--space-lg); }
.personal-token-row { align-items: flex-start; border: 1px solid var(--border); border-radius: var(--radius-xs); padding: var(--space-md); }
.personal-token-row > div { display: grid; min-width: 0; gap: var(--space-2xs); }

.document-trash-modal .modal-content { display: grid; gap: var(--space-md); }
.document-trash-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-md); }
.document-trash-row > div { min-width: 0; }
.document-trash-row strong { color: var(--text-soft); }
.document-trash-row p { margin: var(--space-2xs) 0 0; overflow-wrap: anywhere; color: var(--muted); font-size: 0.76rem; }

.modal-root {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  padding: 20px;
}

.modal-root:has(.modal) { background: rgba(0, 0, 0, 0.66); pointer-events: auto; }

.modal {
  display: grid;
  width: min(100%, 680px);
  max-height: min(90vh, 760px);
  overflow: auto;
  gap: var(--space-lg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  padding: var(--space-xl);
}

.modal h2, .modal p { margin: 0; }
.modal h2 { color: var(--text-soft); font-size: 1.08rem; font-weight: 600; }
.modal > p { color: var(--muted); font-size: 0.84rem; line-height: 1.5; }
.modal-actions { justify-content: flex-end; flex-wrap: wrap; }
.toast-region { position: fixed; z-index: 110; inset-inline: 16px; inset-block-end: 16px; margin-inline: auto; width: fit-content; max-width: calc(100% - 32px); border-radius: var(--radius-sm); background: var(--surface-raised); color: var(--text); }
.toast-region:not(:empty) { border: 1px solid var(--border-strong); box-shadow: 0 14px 20px rgba(0, 0, 0, 0.36); padding: var(--space-sm) var(--space-md); }

::highlight(runwise-comments) { background: rgba(251, 146, 60, 0.35); color: inherit; }
::highlight(runwise-active-comment) { background: rgba(251, 191, 36, 0.52); color: inherit; }
::highlight(runwise-notification-comment) { background: rgba(251, 191, 36, 0.78); color: inherit; }
::highlight(runwise-pending-selection) { background: rgba(251, 146, 60, 0.34); color: inherit; }
::highlight(runwise-pending-rewrite-selection) { background: var(--personal-highlight-selected); color: inherit; }
.annotation-highlight { background: rgba(251, 146, 60, 0.35); color: inherit; cursor: pointer; }
.annotation-highlight[data-active="true"] { background: rgba(251, 191, 36, 0.52); outline: 2px solid var(--warning); outline-offset: 1px; }
.annotation-highlight[data-notification-spotlight="true"],
.thread-card[data-notification-spotlight="true"],
.message[data-notification-spotlight="true"] {
  border-radius: var(--radius-xs);
  background: var(--accent-muted);
  outline: 2px solid var(--accent);
  outline-offset: var(--space-2xs);
  animation: notification-spotlight 1.4s ease-out;
}
.rewrite-highlight { background: rgba(251, 146, 60, 0.35); color: inherit; cursor: pointer; }
.rewrite-highlight[data-active="true"] { background: rgba(251, 191, 36, 0.52); outline: 2px solid var(--warning); outline-offset: 1px; }
.rewrite-highlight[data-personal="true"] { background: var(--personal-highlight); }
.rewrite-highlight[data-personal="true"][data-active="true"] { background: var(--personal-highlight-selected); outline-color: var(--personal); }
.preview-notice { border: 1px solid var(--warning); border-radius: var(--radius-sm); color: var(--warning); padding: 10px; }

@media (max-width: 1240px) {
  .app-shell,
  .app-shell.comments-closed { grid-template-columns: var(--sidebar-width) minmax(0, 1fr); }
  .annotation-panel {
    position: fixed;
    z-index: 40;
    inset: 0 0 0 auto;
    width: min(var(--panel-width), 92vw);
    opacity: 0;
    pointer-events: none;
    transform: translateX(100%);
    box-shadow: -16px 0 32px rgba(0, 0, 0, 0.34);
    transition-delay: 0s, 0s, 320ms;
    visibility: hidden;
  }
  .annotation-panel.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
    transition-delay: 0s;
    visibility: visible;
  }
}

@media (max-width: 980px) {
  .app-shell,
  .app-shell.comments-closed,
  .app-shell.notifications-open {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 30;
    width: min(var(--sidebar-width), 86vw);
    transform: translateX(-100%);
    transition: transform 160ms ease;
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .icon-button,
  .mobile-nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  #sidebar-close {
    display: inline-grid;
  }

  .reader-header {
    min-height: 68px;
  }

  .notification-page-header {
    min-height: 68px;
  }

  .notification-filters {
    top: 68px;
  }

  .markdown-body {
    padding-top: 24px;
  }

  .reader-header { gap: 8px; }
  .document-discussions { margin-inline: 18px; }
  .sidebar { box-shadow: 16px 0 32px rgba(0, 0, 0, 0.34); }
  .selection-actions {
    inset: auto var(--space-md) var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
  }
  .selection-actions > button { flex: 0 0 32px; }
  .selection-action-status { flex: 1 1 100%; max-width: none; text-align: center; }
}

@media (max-width: 560px) {
  .login-screen { padding: var(--space-lg); }
  .login-card {
    --login-card-padding: var(--space-xl);
    gap: var(--space-xl);
    padding: var(--login-card-padding);
  }
  .reader-header {
    padding-inline: var(--space-md) var(--space-lg);
    backdrop-filter: none;
  }
  .notification-page-header {
    flex-wrap: wrap;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
  }
  .notification-page-header > .thread-link {
    width: 100%;
    text-align: center;
  }
  .notification-filters {
    position: relative;
    top: auto;
    padding: var(--space-md);
    backdrop-filter: none;
  }
  .notification-filter-row {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xs);
  }
  .notification-list {
    padding: var(--space-lg) var(--space-md) var(--space-3xl);
  }
  .notification-item {
    padding: var(--space-lg);
  }
  .notification-item-heading {
    align-items: flex-start;
  }
  .reader-header h2 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .reader-header .path { display: none; }
  .markdown-body { padding-inline: var(--space-lg); }
  .document-discussions { margin-inline: var(--space-lg); }
  .composer-actions, .modal-actions { align-items: stretch; flex-direction: column; }
  .composer-actions > *, .modal-actions > * { width: 100%; }
  .annotation-composer .composer-actions { align-items: center; flex-direction: row; }
  .annotation-composer .composer-actions > * { width: auto; }
  .annotation-composer .form-status { flex: 1 1 100%; }
  .personal-token-row,
  .token-secret-row { align-items: stretch; flex-direction: column; }
  .rewrite-card-actions > .text-button,
  .token-secret-row > * { width: 100%; }
}

@media (hover: none) {
  .message-actions,
  .tree-root-row .tree-directory-actions,
  .tree-directory > summary .tree-directory-actions,
  .tree-file-row .tree-directory-actions {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}