.ai-button-mark {
  display: inline-grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--pink) 58%, var(--line));
  border-radius: 5px;
  color: var(--pink);
  font-size: 10px;
  font-weight: 900;
}

.ai-workbench-modal { z-index: 760; }

.ai-workbench-card {
  width: min(1480px, calc(100vw - 28px));
  height: min(900px, calc(100vh - 28px));
  max-width: none;
  padding: 0;
  overflow: hidden;
  border-color: color-mix(in srgb, var(--pink) 36%, var(--line));
  background: var(--theme-panel);
}

.ai-workbench-header {
  display: flex;
  min-height: 88px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 56px 15px 22px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--theme-panel-2) 92%, var(--pink) 8%);
}

.ai-workbench-header h2,
.ai-workbench-header p { margin: 0; }
.ai-workbench-header h2 { font-size: 21px; }
.ai-workbench-header > div:first-child > p:last-child { margin-top: 4px; color: var(--muted); font-size: 12px; }

.ai-mode-switch {
  display: grid;
  grid-template-columns: repeat(3, minmax(72px, 1fr));
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--theme-panel-2);
}

.ai-mode-switch button {
  min-height: 34px;
  padding: 6px 13px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
}

.ai-mode-switch button.active {
  background: var(--pink);
  color: var(--button-text, #111);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--pink) 24%, transparent);
}

.ai-workbench-layout {
  display: grid;
  height: calc(100% - 88px);
  min-height: 0;
  grid-template-columns: 220px minmax(0, 1fr);
}

.ai-conversation-panel {
  display: flex;
  min-height: 0;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--theme-panel-2) 96%, transparent);
}

.ai-conversation-actions,
.ai-history-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 7px;
}

.ai-conversation-list {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  gap: 5px;
  overflow: auto;
  scrollbar-color: color-mix(in srgb, var(--pink) 45%, var(--line)) transparent;
  scrollbar-width: thin;
}

.ai-conversation-item {
  display: grid;
  width: 100%;
  min-height: 54px;
  justify-items: start;
  gap: 3px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.ai-conversation-item:hover { background: color-mix(in srgb, var(--pink) 8%, var(--theme-panel)); }
.ai-conversation-item.active { border-color: color-mix(in srgb, var(--pink) 48%, var(--line)); background: color-mix(in srgb, var(--pink) 13%, var(--theme-panel)); }
.ai-conversation-item strong { width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-conversation-item small { color: var(--muted); font-size: 10px; }

.ai-creation-panel {
  display: grid;
  min-width: 0;
  min-height: 0;
  grid-template-rows: auto auto minmax(180px, 1fr) auto;
  background: color-mix(in srgb, var(--theme-bg) 84%, var(--theme-panel));
}

.ai-model-toolbar { grid-row: 1; }
.ai-config-panel { grid-row: 2; }
.ai-messages { grid-row: 3; }
.ai-composer { grid-row: 4; }

.ai-model-toolbar {
  display: grid;
  grid-template-columns: minmax(400px, 1fr) auto auto;
  align-items: end;
  gap: 8px;
  padding: 9px 13px;
  border-bottom: 1px solid var(--line);
  background: var(--theme-panel);
}

.ai-model-toolbar label { display: grid; min-width: 0; gap: 3px; color: var(--muted); font-size: 10px; }
.ai-model-toolbar input,
.ai-model-toolbar select { min-width: 0; min-height: 34px; padding-block: 7px; }
.ai-model-control { display: grid; min-width: 0; grid-template-columns: minmax(180px, 1fr) minmax(160px, .72fr); gap: 7px; }
.ai-model-summary { min-width: 0; overflow: hidden; color: var(--muted); font-size: 9px; line-height: 1.25; text-overflow: ellipsis; white-space: nowrap; }

.ai-config-panel {
  max-height: min(470px, 54vh);
  padding: 10px 13px;
  overflow: auto;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--theme-panel-2) 96%, transparent);
}

.ai-provider-config {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.ai-provider-config:first-child { padding-top: 0; }
.ai-provider-config > div:first-child { align-self: start; }
.ai-provider-config h3 { margin: 1px 0 4px; color: var(--text); font-size: 12px; }
.ai-provider-config p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }

.ai-config-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 7px;
}

.ai-config-grid label { display: grid; min-width: 0; gap: 3px; color: var(--muted); font-size: 10px; }
.ai-config-grid label.wide { grid-column: 1 / -1; }
.ai-config-grid label.span-2 { grid-column: span 2; }
.ai-config-grid input,
.ai-config-grid select,
.ai-config-grid textarea { width: 100%; min-height: 34px; padding-block: 7px; }
.ai-config-grid textarea { resize: vertical; }
.ai-advanced-config { margin-top: 8px; border: 1px solid var(--line); border-radius: 7px; background: color-mix(in srgb, var(--theme-panel) 78%, transparent); }
.ai-advanced-config summary { padding: 8px 10px; color: var(--text); cursor: pointer; font-size: 10px; font-weight: 700; user-select: none; }
.ai-advanced-config[open] summary { border-bottom: 1px solid var(--line); }
.ai-advanced-config .ai-config-grid { padding: 9px; }
.ai-config-actions { display: grid; gap: 6px; margin-top: 8px; }
.ai-config-command-row { display: flex; flex-wrap: wrap; gap: 7px; }
.ai-config-command-row button { min-width: 76px; min-height: 32px; padding: 6px 11px; font-size: 10px; }
.ai-config-actions small { min-width: 0; color: var(--muted); }

.ai-messages {
  min-height: 0;
  padding: 18px clamp(14px, 3vw, 42px);
  overflow: auto;
  scrollbar-color: color-mix(in srgb, var(--pink) 45%, var(--line)) transparent;
  scrollbar-width: thin;
}

.ai-empty-state {
  display: grid;
  min-height: 100%;
  place-content: center;
  justify-items: center;
  gap: 8px;
  color: var(--muted);
  text-align: center;
}

.ai-empty-state span {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--pink) 55%, var(--line));
  border-radius: 8px;
  color: var(--pink);
  font-size: 18px;
  font-weight: 900;
}

.ai-empty-state strong { color: var(--text); font-size: 17px; }
.ai-empty-state p { max-width: 440px; margin: 0; }

.ai-message {
  width: min(860px, 92%);
  margin: 0 auto 13px 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--theme-panel);
  box-shadow: 0 6px 22px color-mix(in srgb, #000 9%, transparent);
}

.ai-message.mine {
  margin-right: 0;
  margin-left: auto;
  border-color: color-mix(in srgb, var(--pink) 42%, var(--line));
  background: color-mix(in srgb, var(--pink) 10%, var(--theme-panel));
}

.ai-message.error { border-color: color-mix(in srgb, #d85b62 64%, var(--line)); }
.ai-message header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ai-message header strong { color: var(--pink); }
.ai-message header time { color: var(--muted); font-size: 10px; }
.ai-message p { margin: 8px 0 0; line-height: 1.65; overflow-wrap: anywhere; }
.ai-message video { display: block; width: min(720px, 100%); max-height: 440px; margin: 10px 0; background: #000; }
.ai-job-status { display: block; margin-top: 8px; color: var(--muted); }

.ai-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  gap: 10px;
  margin-top: 10px;
}

.ai-image-grid figure { margin: 0; }
.ai-image-grid img { display: block; width: 100%; max-height: 540px; aspect-ratio: 1; object-fit: contain; border: 1px solid var(--line); background: #101010; }
.ai-image-grid a { width: 100%; margin-top: 6px; text-align: center; }

.ai-composer {
  display: grid;
  gap: 9px;
  padding: 10px 13px 12px;
  border-top: 1px solid var(--line);
  background: var(--theme-panel);
}

.ai-composer textarea { width: 100%; min-height: 64px; max-height: 160px; resize: vertical; }
.ai-generation-options { display: flex; flex-wrap: wrap; gap: 8px; }
.ai-generation-options label { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 11px; }
.ai-generation-options select { min-width: 130px; }
.ai-composer-actions { display: flex; min-height: 36px; align-items: center; justify-content: flex-end; gap: 8px; }
.ai-composer-actions > span { min-width: 0; margin-right: auto; color: var(--muted); font-size: 11px; }

@media (max-width: 820px) {
  .ai-workbench-modal { padding: 0; }
  .ai-workbench-card { width: 100%; height: 100dvh; max-height: 100dvh; border-radius: 0; }
  .ai-workbench-header { min-height: 100px; align-items: flex-start; flex-direction: column; gap: 6px; padding: max(9px, env(safe-area-inset-top)) 48px 8px 9px; }
  .ai-workbench-header > div:first-child > p:last-child { display: none; }
  .ai-mode-switch { width: 100%; }
  .ai-workbench-layout { height: calc(100% - 100px); grid-template-columns: 1fr; grid-template-rows: 60px minmax(0, 1fr); }
  .ai-conversation-panel { display: grid; grid-template-columns: 92px minmax(0, 1fr) 104px; grid-template-rows: 48px; gap: 5px; padding: 6px 8px; border-right: 0; border-bottom: 1px solid var(--line); }
  .ai-conversation-panel > .primary-button { grid-row: 1; grid-column: 1; min-width: 0; min-height: 48px; padding: 5px 6px; font-size: 11px; }
  .ai-conversation-actions { grid-row: 1; grid-column: 3; gap: 4px; }
  .ai-conversation-actions button { min-width: 0; min-height: 48px; padding: 4px 3px; font-size: 11px; }
  .ai-conversation-list { grid-row: 1; grid-column: 2; flex-direction: row; overflow-x: auto; overflow-y: hidden; }
  .ai-conversation-item { width: 112px; min-width: 112px; min-height: 48px; padding: 6px 7px; }
  .ai-history-actions { display: none; }
  .ai-model-toolbar { grid-template-columns: minmax(0, 1fr) 40px 74px; padding: 7px 9px; }
  .ai-model-control { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 5px; }
  .ai-model-summary { display: none; }
  .ai-model-toolbar > button { min-width: 0; padding: 6px; font-size: 11px; }
  .ai-model-toolbar > button:first-of-type { font-size: 0; }
  .ai-model-toolbar > button:first-of-type::before { content: '↻'; font-size: 17px; }
  .ai-config-grid { grid-template-columns: 1fr; }
  .ai-provider-config { grid-template-columns: 1fr; gap: 7px; padding: 9px 0; }
  .ai-config-grid label.wide,
  .ai-config-grid label.span-2 { grid-column: auto; }
  .ai-config-command-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-config-command-row button { min-width: 0; padding-inline: 7px; }
  .ai-config-command-row button:first-child { grid-column: 1 / -1; }
  .ai-config-panel { max-height: min(340px, 40dvh); }
  .ai-creation-panel { grid-template-rows: auto auto minmax(64px, 1fr) auto; }
  .ai-messages { padding: 10px 9px; }
  .ai-message { width: 96%; padding: 9px 10px; }
  .ai-composer { padding: 8px 9px max(9px, env(safe-area-inset-bottom)); }
  .ai-composer textarea { min-height: 48px; max-height: 104px; }
  .ai-composer-actions { flex-wrap: wrap; }
  .ai-composer-actions > span { width: 100%; }
}

@media (min-width: 821px) and (max-width: 1120px) {
  .ai-workbench-layout { grid-template-columns: 190px minmax(0, 1fr); }
  .ai-model-toolbar { grid-template-columns: minmax(320px, 1fr) auto auto; }
  .ai-model-control { grid-template-columns: minmax(150px, 1fr) minmax(130px, .7fr); }
  .ai-config-grid { grid-template-columns: repeat(2, minmax(170px, 1fr)); }
}

@media (max-width: 540px) {
  .ai-workbench-header { min-height: 100px; }
  .ai-workbench-header h2 { font-size: 18px; }
  .ai-mode-switch button { min-height: 38px; padding: 7px 8px; }
  .ai-workbench-layout { height: calc(100% - 100px); grid-template-rows: 58px minmax(0, 1fr); }
  .ai-conversation-panel { grid-template-columns: 82px minmax(0, 1fr) 96px; padding: 5px 6px; }
  .ai-conversation-panel > .primary-button { padding-inline: 3px; }
  .ai-conversation-item { width: 104px; min-width: 104px; }
  .ai-model-toolbar { grid-template-columns: minmax(0, 1fr) 48px 68px; gap: 5px; padding: 6px 7px; }
  .ai-model-control { grid-column: 1 / -1; grid-template-columns: 1fr; }
  .ai-model-toolbar input, .ai-model-toolbar select { min-height: 40px; }
  .ai-config-panel { padding: 10px 9px max(14px, env(safe-area-inset-bottom)); }
  .ai-config-command-row button, .ai-config-command-row button:first-child { min-height: 48px; }
  .ai-composer textarea { min-height: 48px; }
  .ai-composer-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-composer-actions > span { grid-column: 1 / -1; }
  .ai-composer-actions button { min-width: 0; min-height: 48px; }
}

@media (max-width: 820px) and (max-height: 520px) {
  .ai-workbench-header { min-height: 58px; align-items: center; flex-direction: row; padding: max(5px, env(safe-area-inset-top)) 48px 5px 8px; }
  .ai-workbench-header > div:first-child { min-width: 130px; }
  .ai-workbench-header .eyebrow { display: none; }
  .ai-mode-switch { width: min(280px, 48vw); }
  .ai-workbench-layout { height: calc(100% - 58px); grid-template-columns: 190px minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); }
  .ai-conversation-panel { display: flex; flex-direction: column; gap: 5px; padding: 6px; border-right: 1px solid var(--line); border-bottom: 0; }
  .ai-conversation-panel > .primary-button { width: 100%; }
  .ai-conversation-actions { width: 100%; }
  .ai-conversation-list { width: 100%; flex: 1; flex-direction: column; overflow-x: hidden; overflow-y: auto; }
  .ai-conversation-item { width: 100%; min-width: 0; }
  .ai-model-toolbar { min-height: 68px; grid-template-columns: minmax(0, 1fr) 48px 74px; align-items: center; padding-block: 4px; }
  .ai-model-toolbar label { margin: 0; }
  .ai-model-control { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-config-panel { max-height: 44dvh; }
  .ai-composer { grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 6px; padding-block: 6px; }
  .ai-composer-actions { min-width: 190px; }
  body.android-client .ai-composer-actions button { min-height: 48px; }
}