:root {
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  color-scheme: light dark;
  --bg: #0d0f10;
  --panel: #141718;
  --panel-2: #1a1e20;
  --line: #292f32;
  --text: #f0f3f4;
  --muted: #98a2a7;
  --accent: #dfe7ea;
  --danger: #f5b7b1;
  --sidebar: #101314;
  --topbar: rgba(13, 15, 16, 0.92);
  --code-bg: #090b0c;
  --composer-line: #353d40;
  --focus: #61b995;
  --on-accent: #111111;
  --mark-bg: #23292c;
  --mark-text: #f0f3f4;
}

:root[data-theme='light'] {
  color-scheme: light;
  --bg: #f3f6f4;
  --panel: #ffffff;
  --panel-2: #e4ebe6;
  --line: #8c9b92;
  --text: #102019;
  --muted: #394940;
  --accent: #123f2b;
  --danger: #8f1f19;
  --sidebar: #e8efe9;
  --topbar: rgba(255, 255, 255, 0.94);
  --code-bg: #e8efea;
  --composer-line: #718078;
  --focus: #006d43;
  --on-accent: #ffffff;
  --mark-bg: #123f2b;
  --mark-text: #ffffff;
}

@media (prefers-color-scheme: light) {
  :root[data-theme='system'] {
    color-scheme: light;
    --bg: #f3f6f4;
    --panel: #ffffff;
    --panel-2: #e4ebe6;
    --line: #8c9b92;
    --text: #102019;
    --muted: #394940;
    --accent: #123f2b;
    --danger: #8f1f19;
    --sidebar: #e8efe9;
    --topbar: rgba(255, 255, 255, 0.94);
    --code-bg: #e8efea;
    --composer-line: #718078;
    --focus: #006d43;
    --on-accent: #ffffff;
    --mark-bg: #123f2b;
    --mark-text: #ffffff;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

button,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 100vh;
  padding: 22px;
  border-right: 1px solid var(--line);
  background: var(--sidebar);
}

.sidebar-backdrop {
  display: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark,
.welcome-mark {
  display: grid;
  place-items: center;
  border: 1px solid #3a4246;
  border-radius: 14px;
  background: var(--mark-bg);
  color: var(--mark-text);
  font-weight: 800;
}

.brand-mark {
  width: 42px;
  height: 42px;
}

.brand small,
.sidebar label {
  display: block;
  color: var(--muted);
  margin-top: 2px;
  font-size: 12px;
}

.model-details {
  margin: -3px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

.app-version {
  color: var(--muted);
  font-size: 10px;
}

.policy-link {
  color: var(--muted);
  font-size: 11px;
}

.policy-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  line-height: 1.65;
}

.policy-page h1,
.policy-page h2 {
  line-height: 1.25;
}

.policy-page h2 {
  margin-top: 2em;
  font-size: 1.25rem;
}

.policy-page p {
  color: var(--muted);
}

.policy-updated,
.policy-back {
  color: var(--accent);
  font-size: 13px;
}

.model-info-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.model-info-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: var(--panel);
}

.model-info-card h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.model-info-card dl {
  display: grid;
  grid-template-columns: minmax(110px, auto) minmax(0, 1fr);
  gap: 6px 14px;
  margin: 0;
}

.model-info-card dt {
  color: var(--muted);
}
.model-info-card dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.new-chat,
.clear-button,
.stop-button,
.send-button {
  min-height: 32px;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
}

.new-chat,
.clear-button,
.stop-button {
  background: transparent;
}

.new-chat:hover,
.clear-button:hover,
.stop-button:hover {
  background: var(--panel-2);
}

.conversation-search {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 11px;
}

.conversation-search input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
  background: var(--panel);
  color: var(--text);
}

.conversation-search-empty {
  margin: 6px 4px;
  color: var(--muted);
  font-size: 12px;
}

.conversation-list {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 6px;
  min-height: 0;
  overflow-y: auto;
}

.document-library {
  display: grid;
  gap: 6px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.document-library-heading,
.collection-controls,
.collection-document {
  display: flex;
  align-items: center;
  gap: 6px;
}

.document-library-heading {
  justify-content: space-between;
  color: var(--muted);
  font-size: 11px;
}

.document-library-heading button,
.collection-add {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
}

.document-library-heading button {
  width: 24px;
  height: 24px;
}

.collection-controls select {
  flex: 1;
  min-width: 0;
}

.collection-document-list {
  display: grid;
  gap: 4px;
  max-height: 96px;
  overflow-y: auto;
}

.collection-document {
  justify-content: space-between;
  color: var(--muted);
  font-size: 11px;
}

.collection-document span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collection-add {
  display: inline-flex;
  width: fit-content;
  padding: 5px 7px;
  font-size: 11px;
}

.collection-add input {
  display: none;
}

.conversation-item {
  width: 100%;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  padding: 10px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-item:hover,
.conversation-item.active {
  background: var(--panel-2);
  color: var(--text);
}

.sidebar-footer {
  display: grid;
  gap: 8px;
}

.sidebar select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px;
  background: var(--panel);
  color: var(--text);
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #6b7275;
}

.status-dot.ok {
  background: #8bc79d;
}
.status-dot.bad {
  background: #d68178;
}
.status-dot.loading,
.status-dot.generating {
  background: #e8c375;
}
.status-dot.stopped {
  background: #6b7275;
}

.main {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  height: 100vh;
  min-width: 0;
}

.app-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 13px;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--topbar);
}

.topbar > div {
  flex: 1;
}

.conversation-tools {
  display: flex;
  flex: 0 1 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.theme-select {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  font-size: 11px;
}

.theme-select select {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px;
  background: var(--panel);
  color: var(--text);
}

.conversation-tools .clear-button {
  padding: 6px 8px;
  font-size: 11px;
}

.conversation-tools label {
  cursor: pointer;
}
.conversation-tools input {
  display: none;
}
.danger-button {
  color: var(--danger);
}

.topbar span {
  margin-left: 10px;
  color: var(--muted);
  font-size: 12px;
}

.menu-button {
  display: none;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 22px;
}

.chat {
  overflow-y: auto;
  padding: 38px 24px 160px;
}

.welcome {
  max-width: 700px;
  margin: 12vh auto 0;
  text-align: center;
}

.welcome-mark {
  width: 68px;
  height: 68px;
  margin: 0 auto 24px;
  border-radius: 20px;
  font-size: 24px;
}

.welcome h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 48px);
  letter-spacing: -0.04em;
}

.welcome p {
  color: var(--muted);
  line-height: 1.6;
}

.message {
  display: grid;
  grid-template-columns: 42px minmax(0, 760px);
  gap: 14px;
  max-width: 840px;
  margin: 0 auto 30px;
}

.message-role {
  display: grid;
  place-items: center;
  align-self: start;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  font-weight: 700;
}

.message.user .message-role {
  background: var(--panel-2);
}

.message-content {
  min-width: 0;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.message-content a {
  color: var(--accent);
  overflow-wrap: anywhere;
}

.message-content table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  white-space: normal;
}

.message-content th,
.message-content td {
  border: 1px solid var(--line);
  padding: 6px 8px;
  text-align: left;
  white-space: nowrap;
}

.message-metrics {
  margin-top: 10px;
  color: var(--muted);
  font-size: 11px;
  white-space: normal;
}

.thinking {
  margin: 8px 0 14px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 13px;
}

.thinking summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--accent);
  user-select: none;
}

.thinking-text {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-family: SFMono-Regular, Consolas, monospace;
  font-size: 12px;
  white-space: pre-wrap;
  color: var(--muted);
}

.message-content pre {
  position: relative;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: var(--code-bg);
}

.code-copy {
  float: right;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 3px 6px;
  background: var(--panel-2);
  color: var(--text);
  font-size: 11px;
}

.message-content code {
  font-family: 'SFMono-Regular', Consolas, monospace;
}

.message-content pre code {
  display: block;
  min-width: max-content;
  white-space: pre;
}

.message-content h1,
.message-content h2,
.message-content h3 {
  margin: 1.1em 0 0.35em;
  line-height: 1.3;
}

.message-content h3 {
  font-size: 1.05rem;
}

.message-content .ordered-item {
  margin: 0.3em 0 0.3em 1em;
}

.message-recovery {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid #65423f;
  border-radius: 10px;
  background: rgba(214, 129, 120, 0.08);
  white-space: normal;
}

.message-recovery.stopped {
  border-color: var(--line);
  background: var(--panel-2);
}

.message-error {
  display: grid;
  gap: 2px;
  color: var(--muted);
  font-size: 13px;
}

.message-error strong {
  color: var(--text);
}

.message-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
}

.message-action {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 10px;
  background: transparent;
  color: var(--text);
}

.message-action:hover {
  background: var(--panel);
}

.message-action:disabled {
  cursor: default;
  opacity: 0.5;
}

.message-actions-inline {
  margin-top: 10px;
  flex-wrap: wrap;
}

.undo-notice {
  position: fixed;
  z-index: 30;
  right: 20px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: var(--panel-2);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  font-size: 13px;
}

.undo-notice button {
  border: 0;
  background: transparent;
  color: var(--accent);
  font-weight: 700;
}

.composer {
  position: sticky;
  bottom: 0;
  padding: 20px 24px 28px;
  background: linear-gradient(0deg, var(--bg) 65%, transparent);
}

.composer-box {
  max-width: 840px;
  margin: 0 auto;
  border: 1px solid var(--composer-line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.web-search {
  border-top: 1px solid var(--line);
  padding: 10px 14px;
}

.web-search-controls {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.web-search input,
.web-search button {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
}

.web-search button {
  cursor: pointer;
}

.web-search-results {
  display: grid;
  gap: 6px;
  max-height: 170px;
  margin-top: 9px;
  overflow-y: auto;
}

.web-search-result {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 8px;
  padding: 7px 0;
  border-top: 1px solid var(--line);
}

.web-search-result span {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.web-search-result a {
  color: var(--accent);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.web-search-result small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.35;
}

.composer textarea {
  width: 100%;
  max-height: 220px;
  resize: none;
  border: 0;
  outline: 0;
  padding: 16px 16px 8px;
  background: transparent;
  color: var(--text);
  line-height: 1.5;
}

.attachment-list,
.message-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.attachment-list {
  padding: 0 16px 8px;
}

.attachment-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  max-width: 100%;
  overflow-wrap: anywhere;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 3px 6px;
  color: var(--muted);
  font-size: 11px;
}

.web-sources {
  margin-bottom: 8px;
}

.web-sources .attachment-item {
  color: var(--accent);
  text-decoration: none;
}

.attachment-remove {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
}

.attachment-error {
  min-height: 1.2em;
  margin: 0;
  padding: 0 16px 6px;
  color: var(--danger);
  font-size: 11px;
}

.attach-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 10px;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
}

.attach-button:hover {
  background: var(--panel-2);
}
.attach-button input {
  display: none;
}

.generation-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 0 16px 8px;
  color: var(--muted);
  font-size: 11px;
}

.generation-controls summary {
  cursor: pointer;
  color: var(--muted);
}

.generation-controls label {
  display: flex;
  align-items: center;
  gap: 5px;
}

.generation-controls input {
  width: 62px;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 3px 5px;
  background: var(--panel-2);
  color: var(--text);
  font-size: 11px;
}

.composer-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 10px 14px;
}

.hint {
  flex: 1;
  color: var(--muted);
  font-size: 11px;
}

.context-status {
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
}

.context-status.warning {
  color: #e8c375;
}
.context-status.critical {
  color: var(--danger);
}

.send-button {
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
}

.send-button:disabled {
  opacity: 0.5;
  cursor: default;
}

.hidden {
  display: none !important;
}

@media (max-width: 800px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    z-index: 20;
    width: min(86vw, 300px);
    transform: translateX(-102%);
    transition: transform 0.2s ease;
    box-shadow: 12px 0 40px rgba(0, 0, 0, 0.45);
  }

  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-backdrop.visible {
    position: fixed;
    z-index: 19;
    inset: 0;
    display: block;
    border: 0;
    background: rgba(0, 0, 0, 0.45);
  }
  .menu-button {
    display: inline-block;
  }
  .topbar {
    flex-wrap: wrap;
    padding-inline: 14px;
  }
  .conversation-tools {
    order: 3;
    width: 100%;
    justify-content: flex-start;
  }
  .theme-select {
    margin-left: auto;
  }
  .chat {
    padding-inline: 16px;
  }
  .composer {
    padding-inline: 12px;
  }
  .hint {
    display: none;
  }
  .context-status {
    margin-right: auto;
  }
  .message-recovery {
    align-items: stretch;
    flex-direction: column;
  }
}

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

@media (prefers-contrast: more) {
  :root {
    --line: currentColor;
  }

  button,
  input,
  select,
  textarea {
    border-width: 2px !important;
  }
}