/* Chat and AI assistant surfaces. */

.chat-page-shell {
  inline-size: 100%;
  block-size: 100%;
  border-radius: var(--radius-lg);
  background-color: oklch(var(--lch-white) / 30%);
}

.chat-page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  block-size: 100%;
}

.chat-panel-region {
  display: flex;
  flex-direction: column;
  block-size: calc(100vh - 80px);
}

@media (min-width: 768px) {
  .chat-panel-region {
    block-size: calc(100vh - 200px);
  }
}

.chat-panel {
  display: flex;
  flex: 1;
  min-block-size: 0;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--color-surface);
  box-shadow: none;
}

@media (min-width: 768px) {
  .chat-panel {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
  }
}

.chat-panel__header {
  display: none;
  flex-shrink: 0;
  padding-block: 0.75rem;
  padding-inline: 1rem;
  background-image: linear-gradient(to right, rgb(var(--palette-assistant-blue)), var(--color-brand));
}

@media (min-width: 768px) {
  .chat-panel__header {
    display: block;
    padding-block: 1rem;
    padding-inline: 1.5rem;
  }
}

.chat-panel__header-inner,
.chat-panel__title-group,
.chat-panel__actions,
.chat-actions__header-inner,
.chat-actions__button-content,
.message-row,
.thinking-message__inner {
  display: flex;
  align-items: center;
}

.chat-panel__header-inner {
  justify-content: space-between;
}

.chat-panel__title-group,
.chat-actions__button-content,
.thinking-message__inner {
  gap: 0.75rem;
}

.chat-panel__actions {
  gap: 0.5rem;
}

.chat-panel__action-form {
  display: inline-flex;
  margin: 0;
}

.chat-panel__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  inline-size: 2rem;
  block-size: 2rem;
  padding: 0;
  border: 1px solid oklch(var(--lch-white) / 12%);
  border-radius: var(--radius-lg);
  background-color: oklch(var(--lch-white) / 12%);
  color: var(--color-ink-inverted);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.chat-panel__action:hover {
  background-color: oklch(var(--lch-white) / 22%);
}

.chat-panel__action-icon {
  inline-size: 1rem;
  block-size: 1rem;
}

.chat-panel__avatar,
.chat-ai-avatar,
.chat-empty-state__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
}

.chat-panel__avatar {
  inline-size: 2.5rem;
  block-size: 2.5rem;
  background-color: oklch(var(--lch-white) / 20%);
}

.chat-panel__title {
  margin: 0;
  color: var(--color-ink-inverted);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.75rem;
}

.chat-panel__body {
  display: flex;
  flex: 1;
  min-block-size: 0;
  flex-direction: column;
  background-color: var(--color-surface-muted);
}

.chat-panel__messages {
  flex: 1;
  min-block-size: 0;
  overflow-y: auto;
  padding: 0.5rem;
}

@media (min-width: 768px) {
  .chat-panel__messages {
    padding: 1rem;
  }
}

.chat-panel__form {
  flex-shrink: 0;
  padding-block: 0.5rem 1rem;
  padding-inline: 0.75rem;
}

@media (min-width: 768px) {
  .chat-panel__form {
    padding-inline: 4rem;
  }
}

.chat-actions-region {
  display: none;
}

@media (min-width: 768px) {
  .chat-actions-region {
    display: block;
  }
}

@media (min-width: 1024px) {
  .chat-actions-region {
    grid-column: span 1 / span 1;
  }
}

.chat-actions {
  display: flex;
  min-block-size: 500px;
  block-size: calc(100vh - 200px);
  max-block-size: 800px;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

.chat-actions__header,
.chat-actions__footer {
  flex-shrink: 0;
  background-color: var(--color-surface-muted);
}

.chat-actions__header {
  padding-block: 0.75rem;
  padding-inline: 1rem;
  border-block-end: 1px solid var(--color-border);
}

.chat-actions__header-inner {
  gap: 0.5rem;
}

.chat-actions__header-icon {
  inline-size: 1.25rem;
  block-size: 1.25rem;
  color: rgb(var(--palette-assistant-blue));
}

.chat-actions__list {
  flex: 1;
  min-block-size: 0;
  overflow-y: auto;
  padding: 1rem;
}

.chat-actions__list > * + * {
  margin-block-start: 0.75rem;
}

.chat-actions__section {
  margin-block-start: 0;
}

.chat-actions__section--spaced {
  margin-block-start: 1.5rem;
}

.chat-actions__section-title {
  margin: 0;
  color: var(--color-ink-lighter);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1rem;
  text-transform: uppercase;
}

.chat-actions__button {
  display: block;
  inline-size: 100%;
  padding-block: 0.75rem;
  padding-inline: 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  font-weight: 500;
  text-align: start;
  transition: color 150ms ease-in-out, background-color 150ms ease-in-out, border-color 150ms ease-in-out;
}

.chat-actions__button-icon {
  inline-size: 1.25rem;
  block-size: 1.25rem;
  flex-shrink: 0;
}

.chat-actions__button--indigo {
  border-color: rgb(var(--palette-indigo-200));
  background-color: rgb(var(--palette-indigo-50));
  color: rgb(var(--palette-indigo-700));
}

.chat-actions__button--indigo:hover {
  background-color: rgb(var(--palette-indigo-100));
}

.chat-actions__button--blue {
  border-color: rgb(var(--palette-blue-200));
  background-color: rgb(var(--palette-blue-50));
  color: rgb(var(--palette-blue-700));
}

.chat-actions__button--blue:hover {
  background-color: rgb(var(--palette-blue-100));
}

.chat-actions__button--emerald {
  border-color: rgb(var(--palette-emerald-200));
  background-color: rgb(var(--palette-mint-50));
  color: rgb(var(--palette-emerald-700));
}

.chat-actions__button--emerald:hover {
  background-color: rgb(var(--palette-emerald-100));
}

.chat-actions__button--teal {
  border-color: rgb(var(--palette-teal-200));
  background-color: rgb(var(--palette-teal-50));
  color: rgb(var(--palette-teal-700));
}

.chat-actions__button--teal:hover {
  background-color: rgb(var(--palette-teal-100));
}

.chat-actions__button--amber {
  border-color: rgb(var(--palette-amber-200));
  background-color: rgb(var(--palette-amber-50));
  color: rgb(var(--palette-amber-700));
}

.chat-actions__button--amber:hover {
  background-color: rgb(var(--palette-amber-100));
}

.chat-actions__button--orange {
  border-color: rgb(var(--palette-orange-200));
  background-color: rgb(var(--palette-cream-50));
  color: rgb(var(--palette-orange-700));
}

.chat-actions__button--orange:hover {
  background-color: rgb(var(--palette-orange-100));
}

.chat-actions__button--purple {
  border-color: rgb(var(--palette-purple-200));
  background-color: rgb(var(--palette-purple-50));
  color: rgb(var(--palette-purple-700));
}

.chat-actions__button--purple:hover {
  background-color: rgb(var(--palette-purple-100));
}

.chat-actions__button--indigo .chat-actions__button-icon { color: var(--color-brand); }
.chat-actions__button--blue .chat-actions__button-icon { color: var(--color-info); }
.chat-actions__button--emerald .chat-actions__button-icon { color: rgb(var(--palette-emerald-500)); }
.chat-actions__button--teal .chat-actions__button-icon { color: rgb(var(--palette-teal-500)); }
.chat-actions__button--amber .chat-actions__button-icon { color: rgb(var(--palette-amber-500)); }
.chat-actions__button--orange .chat-actions__button-icon { color: rgb(var(--palette-orange-500)); }
.chat-actions__button--purple .chat-actions__button-icon { color: var(--color-accent); }

.chat-actions__footer {
  padding-block: 0.75rem;
  padding-inline: 1rem;
  border-block-start: 1px solid var(--color-border);
}

.chat-actions__help {
  text-align: center;
}

.chat-actions__help-text {
  margin-block: 0 0.5rem;
  color: var(--color-ink-lighter);
  font-size: 0.75rem;
  line-height: 1rem;
}

.chat-drawer {
  display: flex;
  block-size: 100%;
  flex-direction: column;
}

.chat-drawer__scroll {
  flex: 1;
  min-block-size: 0;
  overflow-y: auto;
  background-color: var(--color-surface-muted);
}

.chat-drawer__form {
  flex-shrink: 0;
  padding-block: 0.5rem;
  padding-inline: 1rem;
}

.chat-drawer__guide {
  flex-shrink: 0;
  padding-block: 0.25rem 1rem;
  padding-inline: 1rem;
  text-align: start;
}

.chat-drawer__guide-link {
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1rem;
  transition: color 150ms ease-in-out;
}

.turbo-modal--guide {
  inline-size: fit-content;
  max-inline-size: calc(100% - 1rem);
  padding-inline: 1rem;
}

@media (min-width: 48rem) {
  .turbo-modal--guide {
    padding-inline: 2.5rem;
  }
}

.chat-guide {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  inline-size: 100%;
  block-size: 75vh;
  min-block-size: 0;
}

@media (min-width: 48rem) {
  .chat-guide {
    flex-direction: row;
    gap: 1.5rem;
    inline-size: 80vw;
    max-inline-size: 64rem;
    block-size: 78vh;
  }
}

.chat-guide__nav {
  flex-shrink: 0;
  overflow-y: auto;
}

@media (min-width: 48rem) {
  .chat-guide__nav {
    inline-size: 14rem;
    padding-inline-end: 1rem;
    border-inline-end: 1px solid var(--color-border);
  }
}

.chat-guide__nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chat-guide__nav-link {
  display: block;
  padding-block: 0.375rem;
  padding-inline: 0.5rem;
  border-radius: 0.375rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color 150ms ease-in-out, color 150ms ease-in-out;
}

.chat-guide__nav-link:hover {
  background-color: var(--color-surface-muted);
}

.chat-guide__nav-link--sub {
  padding-inline-start: 1.5rem;
}

.chat-guide__nav-link--active {
  background-color: var(--palette-assistant-blue-soft, var(--color-surface-muted));
  color: var(--color-brand);
  font-weight: 600;
}

.chat-guide__main {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  min-inline-size: 0;
  min-block-size: 0;
}

.chat-guide__content {
  flex: 1 1 auto;
  min-block-size: 0;
  overflow-x: hidden;
  overflow-y: auto;
  padding-inline-end: 0.25rem;
}

.chat-guide__footer {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-block-start: 1rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--color-border);
}

.chat-guide__nav-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-inline-size: 0;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 150ms ease-in-out;
}

.chat-guide__nav-button:hover {
  color: var(--color-brand);
}

.chat-guide__nav-button--next {
  color: var(--color-brand);
  font-weight: 600;
}

.chat-guide__nav-button-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-guide__nav-icon {
  flex-shrink: 0;
}

.chat-guide-prose {
  padding-block-end: 1.5rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  line-height: 1.714;
}

.chat-guide-prose > * + * {
  margin-block-start: 1rem;
}

.chat-guide-prose :where(ul, ol) {
  padding-inline-start: 1.5rem;
}

.chat-guide-prose ul {
  list-style: disc;
}

.chat-guide-prose ol {
  list-style: decimal;
}

.message-list {
  flex: 1;
  min-block-size: 0;
  overflow-y: auto;
  padding: 1rem;
  background-color: var(--color-surface-muted);
}

.message-row {
  gap: 0.75rem;
  align-items: flex-start;
  margin-block-end: 1rem;
}

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

.message-row--note {
  justify-content: center;
}

.message-note {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  max-inline-size: 42rem;
  padding-block: 0.4rem;
  padding-inline: 0.75rem;
  border-radius: var(--radius-2xl);
  background: var(--color-surface-2, oklch(0.96 0.005 250));
  color: var(--color-text-muted, oklch(0.55 0.02 250));
  font-size: 0.8125rem;
  line-height: 1.3;
  text-align: center;
}

.message-note__icon {
  inline-size: 1rem;
  block-size: 1rem;
  flex-shrink: 0;
}

.message-row__body {
  flex: 1;
}

.message-row__body--narrow {
  max-inline-size: 42rem;
}

.message-row__avatar {
  flex-shrink: 0;
}

.message-bubble {
  max-inline-size: 42rem;
  padding-block: 0.75rem;
  padding-inline: 1rem;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-sm);
}

.message-bubble--user {
  margin-inline-start: auto;
  border-end-end-radius: var(--radius-md);
  background-color: rgb(var(--palette-blue-100));
  color: var(--color-ink-light);
}

.message-bubble--assistant {
  position: relative;
  border: 1px solid var(--color-border);
  border-end-start-radius: var(--radius-md);
  background-color: var(--color-surface);
}

.message-bubble__content,
.message-bubble__rendered {
  max-inline-size: none;
  margin-block-end: 0.25rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  line-height: 1.625;
}

/* Markdown rendered inside a chat bubble. The live renderer (Marked) and the
   server renderer (chat_markdown) emit the same elements, so one ruleset keeps
   a message looking identical while streaming and after a reload/morph. Scoped
   to the chat only — does not touch the shared .rich-text styles. */
:is(.message-bubble__content, .message-bubble__rendered) > :where(:first-child) {
  margin-block-start: 0;
}

:is(.message-bubble__content, .message-bubble__rendered) > :where(:last-child) {
  margin-block-end: 0;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(p) {
  margin-block: 0.5rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(ul, ol) {
  margin-block: 0.5rem;
  padding-inline-start: 1.25rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(li) {
  margin-block: 0.125rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(li > ul, li > ol) {
  margin-block: 0.125rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(h1, h2, h3, h4, h5, h6) {
  margin-block: 0.75rem 0.375rem;
  font-weight: 600;
  line-height: 1.3;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(h1) {
  font-size: 1.125rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(h2) {
  font-size: 1.0625rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(h3) {
  font-size: 1rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(h4, h5, h6) {
  font-size: 0.9375rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(a) {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(strong) {
  font-weight: 600;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(blockquote) {
  margin-block: 0.5rem;
  padding-inline-start: 0.75rem;
  border-inline-start: 3px solid var(--color-border-muted);
  color: var(--color-ink-medium);
}

:is(.message-bubble__content, .message-bubble__rendered) :where(hr) {
  margin-block: 0.75rem;
  border: 0;
  border-block-start: 1px solid var(--color-border-muted);
}

:is(.message-bubble__content, .message-bubble__rendered) :where(code) {
  padding: 0.1em 0.35em;
  border-radius: var(--radius-xs);
  background-color: var(--color-surface-muted);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(pre) {
  margin-block: 0.5rem;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-muted);
  overflow-x: auto;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(pre code) {
  padding: 0;
  border-radius: 0;
  background-color: transparent;
  font-size: 0.8125rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(table) {
  display: block;
  margin-block: 0.5rem;
  border-collapse: collapse;
  overflow-x: auto;
  font-size: 0.8125rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(th, td) {
  padding: 0.375rem 0.625rem;
  border: 1px solid var(--color-border-muted);
  text-align: start;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(thead th) {
  background-color: var(--color-surface-muted);
  font-weight: 600;
}

/* Task lists: drop the bullet on items that carry a checkbox. */
:is(.message-bubble__content, .message-bubble__rendered) :where(li:has(input[type="checkbox"])) {
  list-style: none;
  margin-inline-start: -1.25rem;
}

:is(.message-bubble__content, .message-bubble__rendered) :where(li input[type="checkbox"]) {
  margin-inline-end: 0.375rem;
}

/* Assistant charts: the ```chart block painted by the chart Stimulus controller.
   Chartkick owns the canvas height (passed in JS); here we handle placement and
   width so the chart sits in the bubble without ever overflowing sideways. */
:is(.message-bubble__content, .message-bubble__rendered) :where(.chat-chart) {
  display: block;
  inline-size: 100%;
  max-inline-size: 100%;
  block-size: 16rem;
  margin-block: 0.75rem;
}

.message-bubble__timestamp {
  color: var(--color-ink-lighter);
  font-size: 0.75rem;
  line-height: 1rem;
}

.message-bubble__timestamp--user {
  display: block;
  text-align: end;
  opacity: 0.8;
}

.message-copy-button {
  position: absolute;
  inset-block-start: 0.5rem;
  inset-inline-end: 0.5rem;
  padding: 0.375rem;
  border: 0;
  border-radius: var(--radius-md);
  background-color: oklch(var(--lch-white) / 80%);
  color: var(--color-ink-medium);
  cursor: pointer;
  opacity: 0;
  transition: opacity 150ms ease-in-out, color 150ms ease-in-out, background-color 150ms ease-in-out;
}

.message-bubble:hover .message-copy-button,
.message-copy-button:focus-visible {
  opacity: 1;
}

.message-copy-button:hover,
.message-copy-button:focus-visible {
  background-color: var(--color-surface-subtle);
  color: var(--color-ink-light);
}

.message-copy-button__icon {
  inline-size: 1rem;
  block-size: 1rem;
}

.chat-ai-avatar {
  inline-size: 2rem;
  block-size: 2rem;
  background-image: linear-gradient(to right, rgb(var(--palette-assistant-blue)), var(--color-brand-strong));
}

.chat-empty-state {
  display: flex;
  block-size: 100%;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-block: 3rem;
  padding-inline: 1rem;
  text-align: center;
}

.chat-empty-state__avatar {
  inline-size: 4rem;
  block-size: 4rem;
  margin-block-end: 1.5rem;
  background-image: linear-gradient(to right, rgb(var(--palette-assistant-blue)), var(--color-brand-strong));
}

.chat-empty-state__icon {
  inline-size: 2.25rem;
  block-size: 2.25rem;
  color: var(--color-ink-inverted);
}

.chat-empty-state__title {
  margin-block: 0 2rem;
  color: var(--color-ink-light);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.75rem;
}

.chat-empty-state__examples {
  color: var(--color-ink-medium);
  font-size: 0.875rem;
  font-style: italic;
  line-height: 1.25rem;
}

.chat-empty-state__examples > * + * {
  margin-block-start: 0.5rem;
}

.message-error__avatar,
.thinking-message__avatar {
  flex-shrink: 0;
}

.message-error__body,
.thinking-message__body {
  flex: 1;
}

.message-error__panel,
.thinking-message__panel {
  max-inline-size: 42rem;
  padding: 1rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.message-error__panel {
  border: 1px solid rgb(var(--palette-red-200));
  background-color: rgb(var(--palette-red-50));
}

.message-error__text {
  margin: 0;
  color: rgb(var(--palette-red-700));
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.chat-room-page {
  inline-size: 100%;
  block-size: 100%;
  border-radius: var(--radius-lg);
  background-color: oklch(var(--lch-white) / 30%);
}

.chat-room-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  block-size: 100%;
}

.chat-room-sidebar-region {
  display: none;
}

.chat-room-sidebar {
  display: flex;
  flex-direction: column;
  block-size: 100vh;
}

.chat-room-sidebar__header {
  padding-block: 0.75rem;
  padding-inline: 1rem;
}


.chat-room-sidebar__search {
  position: relative;
}

.chat-room-sidebar__search-input {
  inline-size: 100%;
  padding-block: 0.5rem;
  padding-inline: 2.5rem 1rem;
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-lg);
}

.chat-room-sidebar__search-input:focus {
  outline: var(--focus-ring);
  outline-offset: 0;
  border-color: transparent;
}

.chat-room-sidebar__search-icon {
  position: absolute;
  inset-block-start: 0.625rem;
  inset-inline-start: 0.75rem;
  inline-size: 1.25rem;
  block-size: 1.25rem;
  color: var(--color-ink-medium);
}

.chat-room-sidebar__list {
  flex: 1 1 auto;
  min-block-size: 0;
  padding: 1rem;
  overflow-y: auto;
}

.chat-room-sidebar__list > * + * {
  margin-block-start: 0.75rem;
}

.chat-room-sidebar__item {
  display: block;
  padding: 0.75rem;
  border-block-end: 1px solid var(--color-border-muted);
  border-radius: var(--radius-lg);
  text-decoration: none;
}

.chat-room-sidebar__item:hover {
  background-color: var(--color-surface-muted);
}

.chat-room-sidebar__item--selected {
  background-color: rgb(var(--palette-purple-50));
}

.chat-room-sidebar__item-inner,
.chat-room-detail-header,
.chat-room-detail-header__identity,
.chat-room-avatar {
  display: flex;
  align-items: center;
}

.chat-room-sidebar__item-inner,
.chat-room-detail-header__identity {
  gap: 0.75rem;
}

.chat-room-sidebar__avatar-cell,
.chat-room-sidebar__badge-cell {
  flex-shrink: 0;
}

.chat-room-sidebar__item-copy {
  flex: 1 1 auto;
  min-inline-size: 0;
}

.chat-room-sidebar__item-title,
.chat-room-sidebar__item-description {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-room-sidebar__item-title {
  color: var(--color-ink);
  font-size: 0.875rem;
  font-weight: 500;
}

.chat-room-sidebar__item-description {
  color: var(--color-ink-lighter);
  font-size: 0.75rem;
}

.chat-room-sidebar__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-block: 0.25rem;
  padding-inline: 0.5rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-brand-strong);
  color: var(--color-ink-inverted);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}

.chat-room-avatar {
  justify-content: center;
  inline-size: 2rem;
  block-size: 2rem;
  border-radius: var(--radius-sm);
}

.chat-room-avatar__icon {
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

.chat-room-avatar__icon--strong {
  opacity: 0.8;
}

.chat-room-avatar__icon--muted {
  opacity: 0.6;
}

.chat-room-avatar__symbol {
  color: var(--color-ink-inverted);
  font-size: 0.75rem;
  font-weight: 700;
}

.chat-room-avatar--soft.chat-room-avatar--red { background-color: rgb(var(--palette-indigo-100)); }
.chat-room-avatar--soft.chat-room-avatar--green { background-color: rgb(var(--palette-green-100)); }
.chat-room-avatar--soft.chat-room-avatar--yellow { background-color: rgb(var(--palette-yellow-100)); }
.chat-room-avatar--soft.chat-room-avatar--blue { background-color: rgb(var(--palette-blue-100)); }
.chat-room-avatar--soft.chat-room-avatar--indigo { background-color: rgb(var(--palette-indigo-100)); }
.chat-room-avatar--soft.chat-room-avatar--purple { background-color: rgb(var(--palette-purple-100)); }
.chat-room-avatar--soft.chat-room-avatar--pink { background-color: rgb(var(--palette-violet-100)); }
.chat-room-avatar--soft.chat-room-avatar--orange { background-color: rgb(var(--palette-orange-100)); }
.chat-room-avatar--soft.chat-room-avatar--teal { background-color: rgb(var(--palette-teal-100)); }
.chat-room-avatar--soft.chat-room-avatar--cyan { background-color: rgb(var(--palette-cyan-50)); }
.chat-room-avatar--soft.chat-room-avatar--gray { background-color: var(--color-surface-subtle); }
.chat-room-avatar--soft.chat-room-avatar--black { background-color: var(--color-border); }
.chat-room-avatar--soft.chat-room-avatar--amber { background-color: rgb(var(--palette-amber-100)); }
.chat-room-avatar--soft.chat-room-avatar--lime { background-color: rgb(var(--palette-lime-100)); }
.chat-room-avatar--soft.chat-room-avatar--emerald { background-color: rgb(var(--palette-emerald-100)); }
.chat-room-avatar--soft.chat-room-avatar--rose { background-color: rgb(var(--palette-sky-100)); }
.chat-room-avatar--soft.chat-room-avatar--sky { background-color: rgb(var(--palette-sky-100)); }
.chat-room-avatar--soft.chat-room-avatar--violet { background-color: rgb(var(--palette-violet-100)); }
.chat-room-avatar--soft.chat-room-avatar--fuchsia { background-color: rgb(var(--palette-purple-100)); }
.chat-room-avatar--soft.chat-room-avatar--slate { background-color: var(--color-surface-subtle); }

.chat-room-avatar--solid.chat-room-avatar--red { background-color: rgb(var(--palette-indigo-500)); }
.chat-room-avatar--solid.chat-room-avatar--green { background-color: var(--color-success); }
.chat-room-avatar--solid.chat-room-avatar--yellow { background-color: var(--color-warning); }
.chat-room-avatar--solid.chat-room-avatar--blue { background-color: var(--color-info); }
.chat-room-avatar--solid.chat-room-avatar--indigo { background-color: var(--color-brand); }
.chat-room-avatar--solid.chat-room-avatar--purple { background-color: var(--color-accent); }
.chat-room-avatar--solid.chat-room-avatar--pink { background-color: rgb(var(--palette-violet-500)); }
.chat-room-avatar--solid.chat-room-avatar--orange { background-color: rgb(var(--palette-orange-500)); }
.chat-room-avatar--solid.chat-room-avatar--teal { background-color: rgb(var(--palette-teal-500)); }
.chat-room-avatar--solid.chat-room-avatar--cyan { background-color: rgb(var(--palette-cyan-500)); }
.chat-room-avatar--solid.chat-room-avatar--gray { background-color: var(--color-border-medium); }
.chat-room-avatar--solid.chat-room-avatar--black { background-color: var(--color-ink); }
.chat-room-avatar--solid.chat-room-avatar--amber { background-color: rgb(var(--palette-amber-500)); }
.chat-room-avatar--solid.chat-room-avatar--lime { background-color: rgb(var(--palette-lime-500)); }
.chat-room-avatar--solid.chat-room-avatar--emerald { background-color: rgb(var(--palette-emerald-500)); }
.chat-room-avatar--solid.chat-room-avatar--rose { background-color: rgb(var(--palette-sky-500)); }
.chat-room-avatar--solid.chat-room-avatar--sky { background-color: rgb(var(--palette-sky-500)); }
.chat-room-avatar--solid.chat-room-avatar--violet { background-color: rgb(var(--palette-violet-500)); }
.chat-room-avatar--solid.chat-room-avatar--fuchsia { background-color: rgb(var(--palette-purple-500)); }
.chat-room-avatar--solid.chat-room-avatar--slate { background-color: var(--color-ink-light); }

.chat-room-main {
  display: flex;
  flex-direction: column;
}

.chat-room-placeholder {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface-subtle);
}

.chat-room-placeholder__content {
  color: var(--color-ink-lighter);
  text-align: center;
}

.chat-room-placeholder__text {
  margin: 0;
  font-size: 1.125rem;
}

.chat-room-detail-header {
  justify-content: space-between;
  padding: 1rem;
  border-block-end: 1px solid var(--color-border);
}

.chat-room-detail-header__icon {
  inline-size: 2rem;
  block-size: 2rem;
}

.chat-room-detail-header__title,
.chat-room-detail-header__meta {
  margin: 0;
}

.chat-room-detail-header__title {
  color: var(--color-ink);
  font-size: 1.125rem;
  font-weight: 600;
}

.chat-room-detail-header__meta {
  color: var(--color-ink-lighter);
  font-size: 0.875rem;
}

.chat-room-detail-body {
  padding-inline: 1.5rem;
}

.chat-room-form-layout__visibility,
.chat-room-form-layout__hint {
  margin-block-start: 1rem;
}

.chat-room-form-layout__hint-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
}

.chat-room-form-layout__hint-inner p {
  margin: 0;
}

.chat-room-form-layout__hint-icon {
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

@media (min-width: 768px) {
  .chat-room-layout {
    gap: 1.5rem;
  }

  .chat-room-sidebar-region {
    display: block;
  }
}

@media (min-width: 1024px) {
  .chat-room-layout {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .chat-room-sidebar-region {
    grid-column: span 1 / span 1;
  }

  .chat-room-main {
    grid-column: span 3 / span 3;
  }
}

/* Chat room conversation workspace */
.page-box:has(.chat-room-page) {
  min-block-size: min(46rem, calc(100dvh - 7rem));
  padding: 0;
}

.page-box__body:has(> .chat-room-page) {
  display: flex;
  align-items: stretch;
  min-block-size: 0;
  padding: 0;
}

.chat-room-page {
  display: flex;
  flex: 1 1 auto;
  align-self: stretch;
  block-size: auto;
  min-inline-size: 0;
  min-block-size: 0;
  border-radius: inherit;
  background-color: var(--color-surface);
}

.chat-room-layout {
  display: grid;
  flex: 1 1 auto;
  grid-template-columns: minmax(0, 1fr);
  min-inline-size: 0;
  min-block-size: 0;
  gap: 0;
}

.chat-room-sidebar-region {
  min-inline-size: 0;
  min-block-size: 0;
  background-color: var(--color-surface-muted);
}

.chat-room-page--index .chat-room-sidebar-region {
  display: block;
}

.chat-room-page--show .chat-room-main {
  display: flex;
}

.chat-room-page--index .chat-room-main,
.chat-room-page--show .chat-room-sidebar-region {
  display: none;
}

.chat-room-sidebar {
  display: flex;
  flex-direction: column;
  block-size: 100%;
  min-block-size: 0;
}

.chat-room-sidebar__header {
  flex: 0 0 auto;
  padding-block: 1.25rem 1rem;
  padding-inline: 1.25rem;
  border-block-end: 1px solid var(--color-border);
}

.chat-room-sidebar__title-row {
  margin-block-end: 1rem;
}

.chat-room-sidebar__eyebrow {
  margin: 0 0 0.25rem;
  color: var(--color-ink-lighter);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.chat-room-sidebar__title {
  font-size: 1.25rem;
  line-height: 1.2;
}

.chat-room-sidebar__new {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  color: var(--color-brand-strong);
  box-shadow: var(--shadow-sm);
  transition: background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.chat-room-sidebar__new:hover {
  border-color: color-mix(in oklch, var(--color-brand) 35%, var(--color-border));
  background-color: rgb(var(--palette-indigo-50));
}

.chat-room-sidebar__new:focus-visible,
.chat-room-sidebar__item:focus-visible,
.chat-room-detail-header__back:focus-visible {
  outline: 0;
  box-shadow: var(--shadow-focus-brand-soft);
}

.chat-room-sidebar__new .icon {
  inline-size: 1.125rem;
  block-size: 1.125rem;
}

.chat-room-sidebar__search {
  position: relative;
}

.chat-room-sidebar__search-input {
  inline-size: 100%;
  min-block-size: 2.75rem;
  padding-block: 0.625rem;
  padding-inline: 2.5rem 0.875rem;
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-xl);
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-size: max(16px, 0.875rem);
  box-shadow: var(--shadow-inset-sm);
}

.chat-room-sidebar__search-input::placeholder {
  color: var(--color-ink-light);
  opacity: 1;
}

.chat-room-sidebar__search-input:focus {
  border-color: var(--color-brand);
  outline: 0;
  box-shadow: var(--shadow-inset-sm), var(--shadow-focus-soft);
}

.chat-room-sidebar__search-icon {
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 0.75rem;
  display: inline-flex;
  color: var(--color-ink-light);
  transform: translateY(-50%);
  pointer-events: none;
}

.chat-room-sidebar__search-icon .icon {
  inline-size: 1.125rem;
  block-size: 1.125rem;
}

.chat-room-sidebar__list {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 0.375rem;
  min-block-size: 0;
  padding: 0.75rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.chat-room-sidebar__list > * + * {
  margin-block-start: 0;
}

.chat-room-sidebar__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  min-block-size: 4.5rem;
  padding-block: 0.75rem;
  padding-inline: 0.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius-xl);
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.chat-room-sidebar__item:hover {
  border-color: var(--color-border);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.chat-room-sidebar__item--selected {
  border-color: color-mix(in oklch, var(--color-brand) 28%, var(--color-border));
  background-color: rgb(var(--palette-indigo-50));
  box-shadow: var(--shadow-sm);
}

.chat-room-sidebar__item-copy {
  display: grid;
  gap: 0.25rem;
  min-inline-size: 0;
}

.chat-room-sidebar__item-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.625rem;
  min-inline-size: 0;
}

.chat-room-sidebar__item-title {
  overflow: hidden;
  color: var(--color-ink);
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-room-sidebar__item-time {
  flex: 0 0 auto;
  color: var(--color-ink-lighter);
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1;
}

.chat-room-sidebar__item-description {
  margin: 0;
  overflow: hidden;
  color: var(--color-ink-light);
  font-size: 0.8125rem;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-room-sidebar__item-author {
  color: var(--color-ink);
  font-weight: 600;
}

.chat-room-sidebar__status {
  inline-size: fit-content;
  border-radius: var(--radius-pill);
  padding-block: 0.125rem;
  padding-inline: 0.5rem;
  background-color: var(--color-surface-subtle);
  color: var(--color-ink-light);
  font-size: 0.6875rem;
  font-weight: 600;
}

.chat-room-sidebar__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-inline-size: 1.5rem;
  min-block-size: 1.5rem;
  padding-inline: 0.375rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-brand);
  color: var(--color-ink-inverted);
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 1;
}

.chat-room-sidebar__no-results {
  margin: 2rem 1rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  text-align: center;
}

.chat-room-sidebar__empty {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  max-inline-size: 24rem;
  margin-inline: auto;
  padding: 2rem;
  text-align: center;
}

.chat-room-sidebar__empty-icon,
.chat-room-placeholder__icon,
.chat-room-conversation-empty__icon,
.chat-room-create-form__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  background-color: rgb(var(--palette-indigo-50));
  color: var(--color-brand-strong);
}

.chat-room-sidebar__empty-icon {
  inline-size: 3rem;
  block-size: 3rem;
  margin-block-end: 1rem;
}

.chat-room-sidebar__empty-icon .icon,
.chat-room-placeholder__icon .icon,
.chat-room-conversation-empty__icon .icon,
.chat-room-create-form__icon .icon {
  inline-size: 1.5rem;
  block-size: 1.5rem;
}

.chat-room-sidebar__empty-title,
.chat-room-sidebar__empty-description {
  margin: 0;
}

.chat-room-sidebar__empty-title {
  color: var(--color-ink);
  font-size: 1.125rem;
  font-weight: 700;
}

.chat-room-sidebar__empty-description {
  margin-block: 0.5rem 1.25rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  line-height: 1.5;
}

.chat-room-avatar {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.chat-room-avatar__icon,
.chat-room-avatar__fallback .icon {
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

.chat-room-avatar--solid .chat-room-avatar__icon,
.chat-room-avatar--solid .chat-room-avatar__fallback .icon {
  filter: brightness(0) invert(1);
}

.chat-room-main {
  display: flex;
  flex-direction: column;
  min-inline-size: 0;
  min-block-size: 0;
  background-color: var(--color-surface);
}

.chat-room-placeholder {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 2rem;
  background-color: var(--color-surface);
  text-align: center;
}

.chat-room-placeholder__icon {
  inline-size: 3.5rem;
  block-size: 3.5rem;
  margin-block-end: 1rem;
}

.chat-room-placeholder__title,
.chat-room-placeholder__text {
  margin: 0;
}

.chat-room-placeholder__title {
  color: var(--color-ink);
  font-size: 1.125rem;
  font-weight: 700;
}

.chat-room-placeholder__text {
  max-inline-size: 34ch;
  margin-block-start: 0.5rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  line-height: 1.5;
}

.chat-room-detail-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  justify-content: initial;
  gap: 0.875rem;
  min-block-size: 5.25rem;
  padding-block: 1rem;
  padding-inline: 1rem;
  border-block-end: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.chat-room-detail-header__back {
  grid-column: 1 / -1;
  inline-size: fit-content;
  border-radius: var(--radius-md);
  color: var(--color-link);
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
}

.chat-room-detail-header__copy {
  min-inline-size: 0;
}

.chat-room-detail-header__title-row,
.chat-room-detail-header__meta,
.chat-room-detail-header__member-count {
  display: flex;
  align-items: center;
}

.chat-room-detail-header__title-row {
  gap: 0.625rem;
}

.chat-room-detail-header__title {
  overflow: hidden;
  font-size: 1.125rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-room-detail-header__status {
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  padding-block: 0.1875rem;
  padding-inline: 0.5rem;
  background-color: var(--color-surface-subtle);
  color: var(--color-ink-light);
  font-size: 0.6875rem;
  font-weight: 700;
}

.chat-room-detail-header__meta {
  flex-wrap: wrap;
  gap: 0.25rem 0.75rem;
  margin-block-start: 0.25rem;
  color: var(--color-ink-light);
  font-size: 0.8125rem;
}

.chat-room-detail-header__member-count {
  gap: 0.25rem;
  white-space: nowrap;
}

.chat-room-detail-header__meta-icon {
  display: inline-flex;
}

.chat-room-detail-header__meta-icon .icon {
  inline-size: 0.875rem;
  block-size: 0.875rem;
}

.chat-room-detail-header__description {
  overflow: hidden;
  max-inline-size: 54ch;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-room-detail-body {
  display: flex;
  flex: 1 1 auto;
  min-block-size: 0;
  padding: 0;
  overflow: hidden;
}

.comments-panel--chat {
  flex: 1 1 auto;
  gap: 0;
  block-size: 100%;
  min-inline-size: 0;
  min-block-size: 0;
}

.comments-panel--chat .comments-panel__list {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 0.75rem;
  max-block-size: none;
  min-block-size: 0;
  padding-block: 1.25rem;
  padding-inline: 1rem;
  overflow-y: auto;
  scroll-padding-block: 1.25rem;
  background-color: var(--color-surface-muted);
  overscroll-behavior: contain;
}

.comments-panel--chat .comment-row--chat {
  display: flex;
  align-self: flex-start;
  inline-size: fit-content;
  max-inline-size: min(88%, 46rem);
  border: 0;
}

.comments-panel--chat .comment-row--chat.comment-row--own {
  align-self: flex-end;
}

.comments-panel--chat .comment-row--chat .comment-row__inner {
  padding-block: 0.75rem;
  padding-inline: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.comments-panel--chat .comment-row--chat.comment-row--own .comment-row__inner {
  grid-template-columns: minmax(0, 1fr);
  border-color: color-mix(in oklch, var(--color-brand) 24%, var(--color-border));
  background-color: rgb(var(--palette-indigo-50));
}

.comments-panel--chat .comment-row--chat.comment-row--own .comment-row__avatar {
  display: none;
}

.comments-panel--chat .comment-row__inner:hover {
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.comments-panel--chat .comment-row--own .comment-row__inner:hover {
  background-color: rgb(var(--palette-indigo-50));
}

.comments-panel--chat .comment-row__body {
  gap: 0.5rem;
}

.comments-panel--chat .comment-row__author {
  font-size: 0.8125rem;
}

.comments-panel--chat .comment-row__date {
  font-weight: 500;
}

.comments-panel--chat .comment-row__content {
  color: var(--color-ink);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.comments-panel--chat .comment-reactions {
  margin-block-start: 0;
}

.comments-panel--chat .comment-reactions__add {
  min-block-size: 1.75rem;
}

.chat-room-conversation-empty {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  max-inline-size: 30rem;
  margin: auto;
  padding: 2rem;
  text-align: center;
}

.chat-room-conversation-empty__icon {
  inline-size: 3.5rem;
  block-size: 3.5rem;
  margin-block-end: 1rem;
}

.chat-room-conversation-empty__title,
.chat-room-conversation-empty__description {
  margin: 0;
}

.chat-room-conversation-empty__title {
  color: var(--color-ink);
  font-size: 1.125rem;
  font-weight: 700;
}

.chat-room-conversation-empty__description {
  max-inline-size: 42ch;
  margin-block-start: 0.5rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  line-height: 1.5;
}

.comment-form--chat {
  flex: 0 0 auto;
  margin: 0;
  padding-block: 0.875rem 1rem;
  padding-inline: 1rem;
  border-block-start: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.comment-form--chat .comment-form__form {
  min-inline-size: 0;
  overflow: visible;
}

.comment-form--chat .comment-form__fieldset {
  inline-size: 100%;
  min-inline-size: 0;
  padding: 0.625rem;
  overflow: hidden;
  border-color: var(--color-border-medium);
  background-color: var(--color-surface);
}

.comment-form--chat .comment-form__fieldset:focus-within {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-focus-soft);
}

.comment-form--chat trix-editor {
  box-sizing: border-box;
  inline-size: 100%;
  min-inline-size: 0;
  min-block-size: 3.5rem;
  max-block-size: 10rem;
  padding-block: 0.5rem;
  padding-inline: 0.5rem;
  overflow-y: auto;
  border: 0;
  color: var(--color-ink);
  font-size: max(16px, 0.9375rem);
  line-height: 1.5;
}

.comment-form--chat trix-toolbar {
  max-inline-size: 100%;
  min-inline-size: 0;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
}

.comment-form--chat trix-editor:focus {
  outline: 0;
}

.comment-form--chat .comment-form__actions {
  justify-content: space-between;
  gap: 1rem;
  margin-block-start: 0.5rem;
}

.comment-form__hint {
  margin: 0;
  color: var(--color-ink-lighter);
  font-size: 0.75rem;
  line-height: 1.3;
}

.comment-form--chat .comment-form__submit {
  inline-size: auto;
  min-block-size: 2.25rem;
  padding-inline: 0.875rem;
  border-radius: var(--radius-lg);
  font-size: 0.8125rem;
  font-weight: 700;
}

.comment-form__submit-label {
  line-height: 1;
}

.chat-room-form-dialog--wide {
  inline-size: min(64rem, calc(100vw - 2rem));
  max-inline-size: 64rem;
}

.chat-room-form-layout__intro {
  max-inline-size: 70ch;
  margin-block: 0 1.25rem;
  color: var(--color-ink-light);
  font-size: 0.875rem;
  line-height: 1.5;
}

.chat-room-create-form {
  display: grid;
  gap: 1.25rem;
}

.chat-room-create-form__intro {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background-color: var(--color-surface-muted);
}

.chat-room-create-form__icon {
  flex: 0 0 auto;
  inline-size: 2.75rem;
  block-size: 2.75rem;
}

.chat-room-create-form__title,
.chat-room-create-form__description,
.chat-room-create-form__help {
  margin: 0;
}

.chat-room-create-form__title {
  color: var(--color-ink);
  font-size: 1rem;
  font-weight: 700;
}

.chat-room-create-form__description,
.chat-room-create-form__help {
  color: var(--color-ink-light);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.chat-room-create-form__description {
  margin-block-start: 0.25rem;
}

.chat-room-create-form__help {
  margin-block-start: 0.5rem;
}

.chat-room-form-layout__hint-icon {
  display: inline-flex;
  flex: 0 0 auto;
}

.chat-room-form-layout__hint-icon .icon {
  inline-size: 1.125rem;
  block-size: 1.125rem;
}

@media (min-width: 64rem) {
  .chat-room-layout {
    grid-template-columns: 19rem minmax(0, 1fr);
  }

  .chat-room-page--index .chat-room-sidebar-region,
  .chat-room-page--show .chat-room-sidebar-region {
    display: block;
  }

  .chat-room-page--index .chat-room-main,
  .chat-room-page--show .chat-room-main {
    display: flex;
  }

  .chat-room-sidebar-region,
  .chat-room-main {
    grid-column: auto;
  }

  .chat-room-sidebar-region {
    border-inline-end: 1px solid var(--color-border);
  }

  .chat-room-detail-header {
    grid-template-columns: auto minmax(0, 1fr);
    padding-inline: 1.5rem;
  }

  .chat-room-detail-header__back {
    display: none;
  }

  .comments-panel--chat .comments-panel__list {
    padding-inline: 1.5rem;
  }

  .comment-form--chat {
    padding-inline: 1.5rem;
  }
}

@media (max-width: 40rem) {
  .page-box:has(.chat-room-page) {
    min-block-size: calc(100dvh - 5.5rem);
    margin-inline: -0.5rem;
    border-radius: var(--radius-lg);
  }

  .chat-room-page {
    min-block-size: 30rem;
  }

  .chat-room-detail-header {
    min-block-size: 6rem;
  }

  .comments-panel--chat .comment-row--chat {
    max-inline-size: 94%;
  }

  .comments-panel--chat .comment-row--chat .comment-row__inner {
    grid-template-columns: auto minmax(0, 1fr);
    padding-inline: 0.75rem;
  }

  .comments-panel--chat .comment-row--chat.comment-row--own .comment-row__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .comments-panel--chat .comment-row__avatar {
    display: flex;
  }

  .comments-panel--chat .comment-row--own .comment-row__avatar {
    display: none;
  }

  .comment-form__hint {
    display: none;
  }

  .comment-form--chat .comment-form__actions {
    justify-content: flex-end;
  }

  .comment-form--chat .comment-form__submit {
    min-inline-size: 5rem;
    min-block-size: 2.75rem;
  }

  .chat-room-form-dialog--wide {
    inline-size: calc(100vw - 1rem);
  }

  .chat-room-create-form__intro {
    padding: 0.875rem;
  }
}

.thinking-message__panel {
  border: 1px solid var(--color-border-muted);
  background-color: var(--color-surface-muted);
}

.thinking-message__dots {
  display: flex;
  gap: 0.25rem;
}

.thinking-message__dot {
  inline-size: 0.5rem;
  block-size: 0.5rem;
  border-radius: var(--radius-pill);
  background-color: rgb(var(--palette-assistant-blue));
  animation: chat-bounce 1s infinite;
}

.thinking-message__dot:nth-child(2) {
  animation-delay: 0.1s;
}

.thinking-message__dot:nth-child(3) {
  animation-delay: 0.2s;
}

.thinking-message__text {
  color: var(--color-ink-light);
  font-weight: 500;
}

@keyframes chat-bounce {
  0%,
  100% {
    transform: translateY(-25%);
    animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
  }

  50% {
    transform: translateY(0);
    animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
  }
}

/* ── Prompt chip (split button: inject + save star) ───────────────────── */

.prompt-chip {
  display: flex;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid rgb(var(--palette-indigo-300));
  border-radius: 14px;
  background-color: oklch(var(--lch-white) / 60%);
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 8px oklch(var(--lch-white) / 0%);
  box-shadow: 0 2px 8px rgb(var(--palette-indigo-200) / 35%);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.prompt-chip:hover {
  box-shadow: 0 4px 16px rgb(var(--palette-indigo-300) / 45%);
}

.prompt-chip__inject {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  gap: 0.5rem;
  padding-block: 0.625rem;
  padding-inline: 1rem;
  border: none;
  background: transparent;
  color: var(--color-ink);
  text-align: start;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.prompt-chip__inject:hover {
  background-color: oklch(var(--lch-white) / 30%);
}

.prompt-chip__sparkles {
  flex-shrink: 0;
  inline-size: 0.875rem;
  block-size: 0.875rem;
  color: rgb(var(--palette-assistant-blue));
}

.prompt-chip__text {
  font-weight: 600;
  color: var(--color-ink);
}

.prompt-chip--sm .prompt-chip__text {
  font-size: 0.75rem;
  line-height: 1rem;
}

.prompt-chip--md .prompt-chip__text {
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.prompt-chip__star {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: 0.625rem;
  border: none;
  border-inline-start: 1px solid rgb(var(--palette-indigo-200));
  background: transparent;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.prompt-chip__star:hover {
  background-color: rgb(var(--palette-indigo-50));
}

.prompt-chip__star-icon {
  display: inline-flex;
}

.prompt-chip__star-icon svg {
  inline-size: 1rem;
  block-size: 1rem;
}

.prompt-chip__star-icon--empty {
  color: rgb(var(--palette-indigo-400));
}

.prompt-chip__star-icon--filled {
  color: rgb(var(--palette-yellow-400));
}

.prompt-chip__star-icon--hidden {
  display: none;
}

/* ── Saved messages modal ─────────────────────────────────────────────── */

.saved-messages-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background-color: oklch(0% 0 none / 40%);
  backdrop-filter: blur(4px);
}

.saved-messages-modal--open {
  display: flex;
}

.saved-messages-modal__card {
  display: flex;
  flex-direction: column;
  inline-size: 100%;
  max-inline-size: 56rem;
  max-block-size: 85vh;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

.saved-messages-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  padding-block: 1.25rem;
  padding-inline: 1.75rem;
  border-bottom: 1px solid var(--color-border-muted);
}

.saved-messages-modal__title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-ink);
}

.saved-messages-modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: 2rem;
  block-size: 2rem;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-ink-lighter);
  cursor: pointer;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.saved-messages-modal__close:hover {
  color: var(--color-ink);
  background-color: var(--color-surface-muted);
}

.saved-messages-modal__close svg {
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

.saved-messages-modal__quick-add {
  flex-shrink: 0;
  padding-block: 1.25rem;
  padding-inline: 1.75rem;
  border-bottom: 1px solid var(--color-border-muted);
}

.saved-messages-modal__quick-add-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.saved-messages-modal__input {
  flex: 1 1 auto;
  inline-size: 100%;
  padding-block: 0.5rem;
  padding-inline: 0.75rem;
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-size: 0.875rem;
}

.saved-messages-modal__input:focus {
  outline: none;
  border-color: rgb(var(--palette-indigo-400));
  box-shadow: 0 0 0 3px rgb(var(--palette-indigo-200) / 50%);
}

.saved-messages-modal__submit {
  flex-shrink: 0;
  padding-block: 0.5rem;
  padding-inline: 1rem;
  border: none;
  border-radius: var(--radius-md);
  background-image: linear-gradient(to right, rgb(var(--palette-assistant-blue)), var(--color-brand));
  color: var(--color-ink-inverted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s ease;
}

.saved-messages-modal__submit:hover {
  filter: brightness(1.05);
}

.saved-messages-modal__body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding-block: 1.25rem;
  padding-inline: 1.75rem;
}

.saved-messages-modal__empty {
  padding-block: 3rem;
  text-align: center;
}

.saved-messages-modal__empty--hidden {
  display: none;
}

.saved-messages-modal__empty-icon {
  inline-size: 2rem;
  block-size: 2rem;
  margin-inline: auto;
  margin-block-end: 0.75rem;
  color: var(--color-border-medium);
}

.saved-messages-modal__empty-title {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-ink-light);
}

.saved-messages-modal__empty-subtitle {
  margin-block-start: 0.25rem;
  font-size: 0.75rem;
  color: var(--color-ink-lighter);
}

.saved-messages-modal__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.625rem;
}

.saved-messages-modal__list--hidden {
  display: none;
}

@media (min-width: 768px) {
  .saved-messages-modal__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .saved-messages-modal__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ── Workspace cards ──────────────────────────────────────────────────── */

.workspace-cards {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-block: 1.25rem;
  padding-inline: 1.5rem;
}

.workspace-cards__section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.workspace-cards__section-title {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  color: var(--color-ink-light);
}

.workspace-cards__grid {
  display: grid;
  gap: 0.625rem;
  grid-template-columns: minmax(0, 1fr);
}

.workspace-cards__grid--capabilities {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.workspace-cards__grid--help,
.workspace-cards__grid--chips {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 768px) {
  .workspace-cards__grid--help,
  .workspace-cards__grid--chips {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Card buttons (help + capabilities) */

.workspace-card {
  display: flex;
  border: 1px solid var(--color-border-muted);
  border-radius: 14px;
  background-color: var(--color-surface);
  box-shadow: 0 2px 8px rgb(var(--palette-indigo-200) / 20%);
  cursor: pointer;
  text-align: start;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.workspace-card:hover {
  box-shadow: 0 4px 14px rgb(var(--palette-indigo-300) / 35%);
}

.workspace-card__icon {
  flex-shrink: 0;
  color: rgb(var(--palette-assistant-blue));
}

/* Help card variant */

.workspace-card--help {
  overflow: hidden;
  border-radius: 14px;
}

.workspace-card__accent {
  flex-shrink: 0;
  inline-size: 4px;
  background-image: linear-gradient(to bottom, rgb(var(--palette-assistant-blue)), var(--color-brand));
}

.workspace-card--help .workspace-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-block: 0.75rem;
  padding-inline: 0.875rem;
}

.workspace-card__icon--help {
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

.workspace-card__title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-ink);
}

/* Capabilities card variant */

.workspace-card--capabilities {
  flex-direction: column;
  gap: 0.625rem;
  padding-block: 1.25rem;
  padding-inline: 1.25rem;
  background-image: linear-gradient(to top right, rgb(var(--palette-indigo-50)), var(--color-surface));
}

.workspace-card__icon--capabilities {
  inline-size: 1.75rem;
  block-size: 1.75rem;
}

.workspace-card__title--lg {
  font-size: 0.9375rem;
  font-weight: 800;
}

.workspace-card__description {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--color-ink-light);
}

/* ── Workspace modal (help / capabilities) ────────────────────────────── */

.workspace-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background-color: oklch(0% 0 none / 40%);
  backdrop-filter: blur(4px);
}

.workspace-modal {
  display: flex;
  flex-direction: column;
  inline-size: 100%;
  max-inline-size: 36rem;
  max-block-size: 85vh;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

.workspace-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  padding-block: 1.25rem;
  padding-inline: 1.75rem;
  border-bottom: 1px solid var(--color-border-muted);
}

.workspace-modal__title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-ink);
}

.workspace-modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: 2rem;
  block-size: 2rem;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-ink-lighter);
  cursor: pointer;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.workspace-modal__close:hover {
  color: var(--color-ink);
  background-color: var(--color-surface-muted);
}

.workspace-modal__close svg {
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

.workspace-modal__body {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex: 1 1 auto;
  overflow-y: auto;
  padding-block: 1.25rem;
  padding-inline: 1.75rem;
}

.workspace-modal__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-ink-light);
}

.workspace-modal__prompts {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.workspace-modal__prompts-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-ink-lighter);
}

.workspace-modal__prompt-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}