/* NEχUS web chat canon v1
   Shared only by the web chat family. CODEX DRAGON keeps its own workstation layout. */
:root {
  --nexus-chat-night: #090d12;
  --nexus-chat-night-raised: #0e141b;
  --nexus-chat-surface: #121921;
  --nexus-chat-surface-strong: #171f28;
  --nexus-chat-line: rgba(151, 181, 202, .13);
  --nexus-chat-line-strong: rgba(105, 200, 255, .32);
  --nexus-chat-ink: #e4edf3;
  --nexus-chat-muted: #8e9ba6;
  --nexus-chat-warm: #d8b898;
  --nexus-chat-blue: #62caff;
  --nexus-chat-blue-deep: #2769d8;
  --nexus-chat-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --nexus-chat-ui: "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
}

.chat-workspace-page {
  --chat-bg: var(--nexus-chat-night);
  --chat-panel: var(--nexus-chat-night-raised);
  --chat-panel-soft: var(--nexus-chat-surface);
  --chat-line: var(--nexus-chat-line);
  --chat-text: var(--nexus-chat-ink);
  --chat-muted: var(--nexus-chat-muted);
  --chat-accent: var(--nexus-chat-blue);
  --chat-accent-strong: var(--nexus-chat-blue-deep);
  background:
    radial-gradient(circle at 50% -28%, rgba(38, 108, 184, .13), transparent 39%),
    var(--nexus-chat-night);
  font-family: var(--nexus-chat-ui);
}

.chat-workspace-page.chat-workspace-kid {
  --chat-accent: #e7bd61;
  --chat-accent-strong: #9c7020;
}

.chat-workspace-page.chat-workspace-lab {
  --chat-accent: #7fd7c2;
  --chat-accent-strong: #257d69;
}

.chat-workspace-page .chat-sidebar {
  border-right-color: var(--nexus-chat-line);
  background: rgba(9, 13, 18, .97);
}

.chat-workspace-page .chat-sidebar::after {
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--chat-accent) 50%, transparent), transparent);
  content: "";
  pointer-events: none;
}

.chat-workspace-page .chat-sidebar-brand > a > span,
.chat-workspace-page .chat-message-avatar,
.chat-workspace-page .chat-welcome-mark {
  border-color: color-mix(in srgb, var(--chat-accent) 24%, transparent);
  background: color-mix(in srgb, var(--chat-accent) 6%, transparent);
}

.chat-workspace-page .chat-sidebar-brand strong {
  font-family: var(--nexus-chat-serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .025em;
}

.chat-workspace-page .chat-new-button,
.chat-workspace-page .chat-search,
.chat-workspace-page .chat-history-item {
  border-radius: 9px;
}

.chat-workspace-page .chat-new-button {
  border-color: transparent;
  background: transparent;
}

.chat-workspace-page .chat-new-button:hover,
.chat-workspace-page .chat-history-item:hover,
.chat-workspace-page .chat-history-item.is-active {
  background: color-mix(in srgb, var(--chat-accent) 7%, transparent);
}

.chat-workspace-page .chat-topbar {
  min-height: 58px;
  border-bottom-color: var(--nexus-chat-line);
  background: color-mix(in srgb, var(--nexus-chat-night) 92%, transparent);
  backdrop-filter: blur(22px) saturate(125%);
}

.chat-workspace-page .chat-topbar strong {
  font-family: var(--nexus-chat-serif);
  font-size: 14px;
  font-weight: 600;
}

.chat-workspace-page .chat-engine-choice select,
.chat-workspace-page .chat-topbar-actions button,
.chat-workspace-page .chat-topbar-actions a {
  border-color: var(--nexus-chat-line);
  border-radius: 9px;
  background: rgba(255, 255, 255, .018);
}

.chat-workspace-page .chat-transcript {
  background: linear-gradient(180deg, rgba(255, 255, 255, .008), transparent 20%);
}

.chat-workspace-page .chat-welcome {
  width: min(980px, calc(100% - 56px));
  padding: clamp(38px, 7vh, 88px) 0 42px;
}

.chat-workspace-page .chat-welcome > p {
  margin: 17px 0 6px;
  color: var(--chat-accent);
  font: 760 9px var(--font-geist-mono), ui-monospace, monospace;
  letter-spacing: .18em;
}

.chat-workspace-page .chat-edition-label {
  color: var(--nexus-chat-warm);
  font: 600 10px/1.4 var(--font-geist-mono), ui-monospace, monospace;
  letter-spacing: .105em;
}

.chat-workspace-page .chat-welcome h1 {
  max-width: 840px;
  margin: 8px 0 0;
  color: var(--nexus-chat-ink);
  font-family: var(--nexus-chat-serif);
  font-size: clamp(40px, 5.4vw, 66px);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: .98;
  text-wrap: balance;
}

.chat-workspace-page .chat-welcome > span {
  max-width: 680px;
  margin-top: 20px;
  color: var(--nexus-chat-warm);
  font-family: var(--nexus-chat-serif);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.55;
  text-wrap: balance;
}

.chat-workspace-page .chat-starters {
  margin-top: 34px;
  gap: 0 34px;
}

.chat-workspace-page .chat-starters button {
  min-height: 54px;
  padding: 13px 10px;
  border: 0;
  border-bottom: 1px solid var(--nexus-chat-line);
  border-radius: 0;
  background: transparent;
  font-size: 12px;
  font-weight: 650;
  transition: color .18s ease, border-color .18s ease, padding .18s ease;
}

.chat-workspace-page .chat-starters button:hover {
  padding-left: 14px;
  border-color: color-mix(in srgb, var(--chat-accent) 55%, transparent);
  color: #fff;
  background: linear-gradient(90deg, color-mix(in srgb, var(--chat-accent) 5%, transparent), transparent);
  transform: none;
}

.chat-workspace-page .chat-starters b {
  color: var(--chat-accent);
  font-weight: 500;
}

.chat-workspace-page .chat-message-list {
  width: min(980px, calc(100% - 56px));
}

.chat-workspace-page .chat-message {
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
}

.chat-workspace-page .chat-message + .chat-message {
  border-top-color: var(--nexus-chat-line);
}

.chat-workspace-page .chat-message-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
}

.chat-workspace-page .chat-message-body > p,
.chat-workspace-page .chat-message-text {
  font-size: 16px;
  line-height: 1.75;
}

.chat-workspace-page .chat-composer-shell {
  width: min(980px, calc(100% - 56px));
  padding-top: 10px;
}

.chat-workspace-page .chat-composer {
  min-height: 68px;
  border-color: var(--nexus-chat-line-strong);
  border-radius: 17px;
  background:
    radial-gradient(circle at 4% 0, color-mix(in srgb, var(--chat-accent) 8%, transparent), transparent 30%),
    radial-gradient(circle at 86% 120%, color-mix(in srgb, var(--nexus-chat-warm) 7%, transparent), transparent 34%),
    rgba(18, 25, 33, .96);
  box-shadow: inset 0 1px rgba(255, 255, 255, .035), 0 22px 60px rgba(0, 0, 0, .28);
}

.chat-workspace-page .chat-composer:focus-within {
  border-color: color-mix(in srgb, var(--chat-accent) 68%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--chat-accent) 7%, transparent), 0 24px 64px rgba(0, 0, 0, .34);
}

.chat-workspace-page .chat-composer textarea {
  font-size: 15px;
}

.chat-workspace-page .chat-runtime-bar {
  position: relative;
  display: flex;
  min-width: 0;
  margin-top: 2px;
  padding: 8px 4px 3px;
  border-top: 1px solid var(--nexus-chat-line);
  border-radius: 0 0 11px 11px;
  grid-column: 1 / -1;
  align-items: center;
  gap: 7px;
  background: linear-gradient(105deg, color-mix(in srgb, var(--chat-accent) 3%, transparent), color-mix(in srgb, var(--nexus-chat-warm) 2%, transparent));
  overflow-x: auto;
  scrollbar-width: none;
}

.chat-workspace-page .chat-runtime-bar::-webkit-scrollbar {
  display: none;
}

.chat-workspace-page .chat-runtime-bar::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: min(42%, 290px);
  height: 1px;
  background: linear-gradient(90deg, var(--chat-accent), color-mix(in srgb, var(--nexus-chat-warm) 55%, transparent), transparent);
  content: "";
  opacity: .72;
}

.chat-workspace-page .chat-runtime-edition,
.chat-workspace-page .chat-runtime-engine,
.chat-workspace-page .chat-runtime-state,
.chat-workspace-page .chat-turn-profile {
  display: inline-flex;
  min-height: 30px;
  flex: 0 0 auto;
  border: 1px solid color-mix(in srgb, var(--chat-accent) 15%, var(--nexus-chat-line));
  border-radius: 999px;
  align-items: center;
  gap: 6px;
  color: var(--nexus-chat-muted);
  background: linear-gradient(135deg, color-mix(in srgb, var(--chat-accent) 5%, transparent), rgba(255, 255, 255, .018));
}

.chat-workspace-page .chat-runtime-edition,
.chat-workspace-page .chat-runtime-state {
  padding: 0 10px;
}

.chat-workspace-page .chat-runtime-edition i,
.chat-workspace-page .chat-runtime-state i {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--chat-accent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--chat-accent) 72%, transparent);
}

.chat-workspace-page .chat-runtime-edition small,
.chat-workspace-page .chat-runtime-engine > span,
.chat-workspace-page .chat-turn-profile > span {
  font: 650 12.8px var(--font-geist-sans), sans-serif;
  letter-spacing: .04em;
}

.chat-workspace-page .chat-runtime-edition strong {
  color: var(--nexus-chat-ink);
  font: 720 14.4px var(--font-geist-mono), ui-monospace, monospace;
  letter-spacing: .08em;
}

.chat-workspace-page .chat-runtime-engine {
  padding-left: 10px;
}

.chat-workspace-page .chat-runtime-engine select {
  min-height: 28px;
  max-width: 150px;
  padding: 0 27px 0 3px;
  border: 0;
  outline: 0;
  color: var(--nexus-chat-ink);
  background: transparent;
  font: 700 14.4px var(--font-geist-sans), sans-serif;
  cursor: pointer;
}

.chat-workspace-page .chat-runtime-engine option {
  color: var(--nexus-chat-ink);
  background: var(--nexus-chat-surface-strong);
}

.chat-workspace-page .chat-turn-profile {
  padding: 2px;
}

.chat-workspace-page .chat-turn-profile > span {
  padding: 0 5px 0 8px;
}

.chat-workspace-page .chat-turn-profile button {
  min-height: 24px;
  padding: 0 9px;
  border: 0;
  border-radius: 999px;
  color: var(--nexus-chat-muted);
  background: transparent;
  font: 700 12.8px var(--font-geist-sans), sans-serif;
  cursor: pointer;
  transition: color .18s ease, background .18s ease, box-shadow .18s ease;
}

.chat-workspace-page .chat-turn-profile button:hover {
  color: var(--nexus-chat-ink);
}

.chat-workspace-page .chat-turn-profile button[aria-pressed="true"] {
  color: #061018;
  background: linear-gradient(135deg, color-mix(in srgb, var(--chat-accent) 84%, white), var(--chat-accent));
  box-shadow: 0 5px 15px color-mix(in srgb, var(--chat-accent) 18%, transparent);
}

.chat-workspace-page .chat-runtime-state {
  margin-left: auto;
  color: color-mix(in srgb, var(--nexus-chat-muted) 85%, var(--chat-accent));
  font: 650 12.8px var(--font-geist-sans), sans-serif;
}

.chat-workspace-page .chat-runtime-state[data-busy="true"] i {
  animation: nexus-runtime-breathe 1.15s ease-in-out infinite;
}

@keyframes nexus-runtime-breathe {
  50% { opacity: .35; transform: scale(.72); }
}

.chat-workspace-page :is(button, a, input, select, textarea):focus-visible {
  outline: 2px solid var(--chat-accent);
  outline-offset: 3px;
}

/* CHAT CANON V5 · contrato autoritativo de legibilidade, alcance e contenção. */
.chat-workspace-page {
  --nexus-chat-readable-min: 13px;
  --nexus-chat-label: 14.4px;
  --nexus-chat-target: 44px;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

body.has-chat-workspace:has(.chat-workspace-page) > .site-beta-notice {
  min-height: var(--nexus-chat-target);
  padding-block: 5px;
  font-size: var(--nexus-chat-readable-min);
  line-height: 1.35;
}

body.has-chat-workspace:has(.chat-workspace-page) > .site-beta-notice :is(strong, span, a) {
  font-size: var(--nexus-chat-readable-min);
}

body.has-chat-workspace:has(.chat-workspace-page) > .site-beta-notice a {
  display: inline-flex;
  min-height: var(--nexus-chat-target);
  align-items: center;
}

.chat-workspace-page.chat-workspace-lambda .codexnuvem-rail,
.chat-workspace-page.chat-workspace-lambda .chat-sidebar {
  min-height: 0;
  height: 100%;
  max-height: 100%;
}

.chat-workspace-page.chat-workspace-lambda .chat-main,
.chat-workspace-page.chat-workspace-lambda .chat-transcript,
.chat-workspace-page.chat-workspace-lambda .chat-history {
  min-height: 0;
}

.chat-workspace-page.chat-workspace-lambda .chat-main {
  height: 100%;
  overflow: hidden;
}

.chat-workspace-page.chat-workspace-lambda .chat-transcript {
  overscroll-behavior: contain;
  scroll-padding-block: 28px;
}

.chat-workspace-page.chat-workspace-lambda .chat-history {
  overflow-y: auto;
  overscroll-behavior: contain;
}

.chat-workspace-page.chat-workspace-lambda .chat-topbar > div:first-child {
  flex-wrap: wrap;
  row-gap: 4px;
}

.chat-workspace-page.chat-workspace-lambda .chat-conversation-context {
  min-width: 0;
  max-width: min(34vw, 320px);
  overflow: hidden;
  color: var(--chat-text);
  font: 650 var(--nexus-chat-label)/1.3 var(--font-geist-sans), sans-serif;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-workspace-page.chat-workspace-lambda :is(
  .chat-topbar small,
  .chat-access-tier,
  .chat-runtime-tier,
  .chat-history > p:first-child,
  .chat-history-select > small,
  .chat-history-empty,
  .chat-sidebar-footer a,
  .chat-sidebar-footer button,
  .chat-sidebar-footer small,
  .chat-message-body > header time,
  .chat-message-engine,
  .chat-message-tools button,
  .chat-message-attachment,
  .chat-message-details > summary,
  .chat-attachment-preview,
  .chat-art-settings span,
  .chat-art-settings label,
  .chat-art-settings select,
  .chat-message-delivery-error,
  .chat-message-delivery-error small,
  .chat-message-delivery-error summary,
  .chat-composer-details,
  .chat-composer-meta p,
  .chat-composer-meta span,
  .chat-disclaimer
) {
  font-size: var(--nexus-chat-readable-min);
}

.chat-workspace-page.chat-workspace-lambda :is(
  .chat-sidebar-brand strong,
  .chat-new-button,
  .chat-search input,
  .chat-history-select > span,
  .chat-topbar strong,
  .chat-welcome > p,
  .chat-edition-label,
  .chat-starters button,
  .chat-message-body > header strong,
  .chat-activity-status strong,
  .chat-activity-status > span:not(.chat-thinking),
  .chat-art-settings strong,
  .chat-message-delivery-error strong,
  .chat-message-delivery-error button
) {
  font-size: var(--nexus-chat-label);
}

.chat-workspace-page.chat-workspace-lambda .chat-history-select > span {
  line-height: 1.35;
}

.chat-workspace-page.chat-workspace-lambda .chat-sidebar-footer :is(a, button),
.chat-workspace-page.chat-workspace-lambda .chat-search,
.chat-workspace-page.chat-workspace-lambda .chat-search input,
.chat-workspace-page.chat-workspace-lambda .chat-history-actions button,
.chat-workspace-page.chat-workspace-lambda .chat-sidebar-close,
.chat-workspace-page.chat-workspace-lambda .chat-topbar-actions :is(button, a),
.chat-workspace-page.chat-workspace-lambda .chat-message-tools button,
.chat-workspace-page.chat-workspace-lambda .chat-message-details > summary,
.chat-workspace-page.chat-workspace-lambda .chat-message-delivery-error :is(button, summary),
.chat-workspace-page.chat-workspace-lambda .chat-attachment-preview button,
.chat-workspace-page.chat-workspace-lambda .chat-composer-tools :is(label, button),
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions button,
.chat-workspace-page.chat-workspace-lambda .chat-runtime-engine,
.chat-workspace-page.chat-workspace-lambda .chat-runtime-engine select,
.chat-workspace-page.chat-workspace-lambda .chat-turn-profile button,
.chat-workspace-page.chat-workspace-lambda .chat-engine-upgrade,
.chat-workspace-page.chat-workspace-lambda .chat-engine-quota,
.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary,
.chat-workspace-page.chat-workspace-lambda .chat-composer-meta button {
  min-width: var(--nexus-chat-target);
  min-height: var(--nexus-chat-target);
}

.chat-workspace-page.chat-workspace-lambda .chat-history-actions button,
.chat-workspace-page.chat-workspace-lambda .chat-sidebar-close,
.chat-workspace-page.chat-workspace-lambda .chat-attachment-preview button {
  width: var(--nexus-chat-target);
  height: var(--nexus-chat-target);
}

.chat-workspace-page.chat-workspace-lambda .chat-message-tools {
  flex-wrap: wrap;
}

.chat-workspace-page.chat-workspace-lambda .chat-message-tools button,
.chat-workspace-page.chat-workspace-lambda .chat-message-delivery-error button,
.chat-workspace-page.chat-workspace-lambda .chat-composer-meta button {
  padding-inline: 12px;
}

.chat-workspace-page.chat-workspace-lambda .chat-message-delivery-error {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 12px;
}

.chat-workspace-page.chat-workspace-lambda .chat-message-delivery-copy {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.chat-workspace-page.chat-workspace-lambda .chat-message-delivery-error details {
  grid-column: 1 / -1;
  min-width: 0;
}

.chat-workspace-page.chat-workspace-lambda .chat-message-delivery-error summary {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  color: color-mix(in srgb, #ffd1d1 78%, var(--chat-muted));
  cursor: pointer;
}

.chat-workspace-page.chat-workspace-lambda .chat-welcome,
.chat-workspace-page.chat-workspace-lambda .chat-message-list,
.chat-workspace-page.chat-workspace-lambda .chat-composer-shell {
  width: min(980px, calc(100% - 56px));
}

.chat-workspace-page.chat-workspace-lambda .chat-message-body > p,
.chat-workspace-page.chat-workspace-lambda .chat-message-text {
  font-size: 16px;
  line-height: 1.75;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer textarea {
  min-height: var(--nexus-chat-target);
  font-size: 16px;
}

.chat-workspace-page.chat-workspace-lambda .chat-runtime-bar {
  display: flex;
  min-width: 0;
  flex-wrap: nowrap;
  gap: 8px;
  overflow: visible;
}

.chat-workspace-page.chat-workspace-lambda .chat-runtime-engine,
.chat-workspace-page.chat-workspace-lambda .chat-turn-profile {
  min-height: var(--nexus-chat-target);
}

.chat-workspace-page.chat-workspace-lambda .chat-runtime-engine {
  min-width: 190px;
  padding-left: 12px;
}

.chat-workspace-page.chat-workspace-lambda .chat-runtime-engine > span,
.chat-workspace-page.chat-workspace-lambda .chat-turn-profile > span {
  font: 650 var(--nexus-chat-readable-min) var(--font-geist-sans), sans-serif;
}

.chat-workspace-page.chat-workspace-lambda .chat-runtime-engine select {
  min-width: 0;
  max-width: none;
  flex: 1 1 auto;
  font: 700 var(--nexus-chat-label) var(--font-geist-sans), sans-serif;
}

.chat-workspace-page.chat-workspace-lambda .chat-turn-profile {
  min-width: 310px;
  padding: 0 3px;
}

.chat-workspace-page.chat-workspace-lambda .chat-turn-profile button {
  padding-inline: 12px;
  font: 700 var(--nexus-chat-readable-min) var(--font-geist-sans), sans-serif;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details {
  margin-top: 3px;
  color: var(--chat-muted);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary {
  display: inline-flex;
  padding-inline: 6px;
  align-items: center;
  gap: 8px;
  color: var(--chat-muted);
  font-weight: 700;
  list-style: none;
  cursor: pointer;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary::-webkit-details-marker {
  display: none;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary::after {
  content: "+";
  color: var(--chat-accent);
  font-size: 18px;
  line-height: 1;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details[open] > summary::after {
  content: "−";
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-secondary {
  display: flex;
  min-width: 0;
  padding: 4px 3px 2px;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-secondary > span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  gap: 7px;
  font-size: var(--nexus-chat-readable-min);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-secondary strong {
  color: var(--chat-text);
  font: 720 var(--nexus-chat-label) var(--font-geist-mono), ui-monospace, monospace;
  letter-spacing: .06em;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-secondary .chat-runtime-state {
  min-height: 28px;
  margin-left: 0;
  padding: 0;
  border: 0;
  background: transparent;
  font: 650 var(--nexus-chat-readable-min) var(--font-geist-sans), sans-serif;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-meta {
  min-height: 0;
  padding-top: 5px;
  align-items: start;
  gap: 8px 14px;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-meta p {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.chat-workspace-page.chat-workspace-lambda [data-chat-composer-meta-busy="true"] p {
  display: none;
}

.chat-workspace-page.chat-workspace-lambda .chat-disclaimer {
  display: block;
  margin-top: 6px;
  line-height: 1.45;
}

.chat-workspace-page.chat-workspace-lambda .chat-thinking {
  min-height: 28px;
  gap: 6px;
}

.chat-workspace-page.chat-workspace-lambda .chat-thinking :is(span, i) {
  display: block;
  width: 7px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--chat-accent);
  animation: chat-thinking 1.1s infinite ease-in-out;
}

.chat-workspace-page.chat-workspace-lambda .chat-thinking i:nth-child(2) { animation-delay: 140ms; }
.chat-workspace-page.chat-workspace-lambda .chat-thinking i:nth-child(3) { animation-delay: 280ms; }

.chat-workspace-page.chat-workspace-lambda .chat-activity-message {
  padding-top: 12px;
  padding-bottom: 12px;
  align-items: center;
  border-top: 1px solid color-mix(in srgb, var(--chat-line) 70%, transparent);
}

.chat-workspace-page.chat-workspace-lambda .chat-activity-status {
  display: flex;
  min-width: 0;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  color: var(--chat-muted);
}

.chat-workspace-page.chat-workspace-lambda .chat-activity-status > span:not(.chat-thinking) {
  overflow-wrap: anywhere;
  color: color-mix(in srgb, var(--chat-text) 78%, var(--chat-muted));
  line-height: 1.45;
}

.chat-workspace-page.chat-workspace-lambda .chat-main[data-chat-empty="true"] .chat-welcome {
  min-height: 100%;
  padding-top: 10px;
  padding-bottom: 12px;
  align-content: end;
}

.chat-workspace-page.chat-workspace-lambda .chat-main[data-chat-empty="true"] .chat-starters {
  margin-top: 14px;
}

.chat-workspace-page.chat-workspace-lambda .chat-main[data-chat-empty="true"] .chat-composer-shell {
  padding-top: 0;
}

@media (hover: none), (pointer: coarse) {
  .chat-workspace-page.chat-workspace-lambda .chat-history-actions {
    opacity: 1;
  }
}

@media (max-width: 860px) {
  .chat-workspace-page.chat-workspace-lambda .chat-sidebar {
    min-height: 0;
    height: 100%;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-topbar {
    min-height: 60px;
    padding-left: max(64px, calc(env(safe-area-inset-left) + 56px));
  }

  .chat-workspace-page.chat-workspace-lambda .chat-conversation-context {
    max-width: min(50vw, 240px);
  }

  .chat-workspace-page.chat-workspace-lambda .chat-welcome,
  .chat-workspace-page.chat-workspace-lambda .chat-message-list,
  .chat-workspace-page.chat-workspace-lambda .chat-composer-shell {
    width: calc(100% - 24px);
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-shell {
    padding-bottom: max(8px, env(safe-area-inset-bottom));
  }

  .chat-workspace-page.chat-workspace-lambda .chat-runtime-bar {
    display: grid;
    grid-template-columns: minmax(124px, .9fr) minmax(140px, 1.1fr);
    align-items: stretch;
    gap: 7px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-runtime-engine,
  .chat-workspace-page.chat-workspace-lambda .chat-turn-profile {
    width: 100%;
    min-width: 0;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-turn-profile {
    justify-content: stretch;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-turn-profile > span {
    display: none;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-turn-profile button {
    min-width: 44px;
    padding-inline: 6px;
    flex: 1 1 44px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-engine-upgrade,
  .chat-workspace-page.chat-workspace-lambda .chat-engine-quota {
    grid-column: 1 / -1;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-message-delivery-error {
    grid-template-columns: 1fr;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-message-delivery-error :is(button, details) {
    grid-column: 1;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-activity-status {
    flex-wrap: wrap;
    gap: 6px 9px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-activity-status > span:not(.chat-thinking) {
    flex: 1 1 160px;
  }
}

@media (max-width: 480px) {
  body.has-chat-workspace:has(.chat-workspace-page) > .site-beta-notice {
    min-height: 44px;
    padding-inline: max(10px, env(safe-area-inset-left));
    font-size: 13px;
  }

  body.has-chat-workspace:has(.chat-workspace-page) > .site-beta-notice span {
    display: none;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-topbar > div:first-child {
    display: flex;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-topbar > div:first-child :is(small, .chat-access-tier, .chat-runtime-tier) {
    display: none;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-conversation-context {
    max-width: calc(100vw - 132px);
  }

  .chat-workspace-page.chat-workspace-lambda .chat-runtime-engine > span {
    display: none;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-runtime-engine {
    padding-left: 7px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-runtime-bar {
    grid-template-columns: minmax(126px, .72fr) minmax(196px, 1.28fr);
  }

  .chat-workspace-page.chat-workspace-lambda .chat-main[data-chat-empty="true"] .chat-welcome {
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-main[data-chat-empty="true"] .chat-welcome-symbol {
    display: none;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-main[data-chat-empty="true"] .chat-welcome > p {
    margin-top: 0;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-main[data-chat-empty="true"] .chat-starters {
    margin-top: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 8px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-secondary,
  .chat-workspace-page.chat-workspace-lambda .chat-composer-meta {
    align-items: stretch;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-executed-engine {
    flex-basis: 100%;
  }
}

@media (max-width: 370px) {
  .chat-workspace-page.chat-workspace-lambda .chat-runtime-bar {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* CHAT CANON V11 · liquid glass integral e iconografia semântica NEχUS. */
.chat-workspace-page {
  --nexus-liquid-glass: linear-gradient(135deg, rgba(147, 188, 255, .13), rgba(104, 82, 190, .08) 47%, rgba(255, 255, 255, .045));
  --nexus-liquid-glass-strong: linear-gradient(135deg, rgba(161, 205, 255, .2), rgba(103, 82, 193, .12) 50%, rgba(255, 165, 206, .08));
  --nexus-liquid-glass-soft: rgba(14, 21, 39, .42);
  --nexus-liquid-line: rgba(209, 229, 255, .2);
  --nexus-liquid-line-active: rgba(138, 203, 255, .58);
  --nexus-liquid-shadow: 0 24px 70px rgba(1, 4, 16, .38), inset 0 1px rgba(255, 255, 255, .16);
  --nexus-liquid-blur: blur(28px) saturate(165%);
  isolation: isolate;
  grid-template-columns: 284px minmax(0, 1fr);
  background:
    radial-gradient(circle at 82% 78%, rgba(255, 101, 171, .15), transparent 28%),
    radial-gradient(circle at 73% 13%, rgba(62, 107, 255, .26), transparent 34%),
    radial-gradient(circle at 21% 88%, rgba(69, 204, 255, .13), transparent 31%),
    linear-gradient(145deg, #070a1b 0%, #090b23 48%, #100827 100%);
  transition: grid-template-columns .3s cubic-bezier(.22, 1, .36, 1);
}

.chat-workspace-page::before,
.chat-workspace-page::after {
  position: absolute;
  z-index: 0;
  border-radius: 50%;
  content: "";
  filter: blur(22px);
  pointer-events: none;
}

.chat-workspace-page::before {
  top: -20%;
  right: 6%;
  width: min(48vw, 700px);
  aspect-ratio: 1.35;
  background: radial-gradient(ellipse, rgba(63, 125, 255, .28), rgba(122, 75, 218, .1) 48%, transparent 72%);
}

.chat-workspace-page::after {
  right: -8%;
  bottom: -28%;
  width: min(42vw, 620px);
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(255, 96, 168, .18), rgba(106, 61, 212, .1) 46%, transparent 70%);
}

.chat-workspace-page .chat-main,
.chat-workspace-page .chat-sidebar {
  position: relative;
  z-index: 2;
}

.chat-workspace-page .nexus-chat-icon {
  display: block;
  flex: 0 0 auto;
  vector-effect: non-scaling-stroke;
}

.chat-workspace-page .chat-sidebar {
  overflow: visible;
  padding: 16px 13px;
  border: 1px solid rgba(215, 232, 255, .13);
  border-block: 0;
  background:
    linear-gradient(145deg, rgba(115, 157, 231, .095), rgba(32, 25, 75, .11)),
    rgba(7, 10, 24, .48);
  box-shadow: 18px 0 60px rgba(0, 0, 0, .16), inset -1px 0 rgba(255, 255, 255, .035);
  backdrop-filter: blur(32px) saturate(155%);
  -webkit-backdrop-filter: blur(32px) saturate(155%);
  transition: padding .3s cubic-bezier(.22, 1, .36, 1);
}

.chat-workspace-page .chat-sidebar::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background:
    radial-gradient(circle at 18% 7%, rgba(134, 202, 255, .13), transparent 26%),
    radial-gradient(circle at 118% 74%, rgba(191, 100, 255, .12), transparent 35%);
  content: "";
  pointer-events: none;
}

.chat-workspace-page .chat-sidebar-brand {
  position: relative;
}

.chat-workspace-page .chat-sidebar-controls {
  display: flex;
  align-items: center;
  gap: 5px;
}

.chat-workspace-page .chat-sidebar-toggle,
.chat-workspace-page .chat-sidebar-close,
.chat-workspace-page .chat-search-trigger {
  display: grid;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--nexus-liquid-line);
  border-radius: 50%;
  place-items: center;
  color: var(--chat-muted);
  background: var(--nexus-liquid-glass);
  box-shadow: inset 0 1px rgba(255, 255, 255, .11), 0 8px 22px rgba(0, 0, 0, .16);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  cursor: pointer;
}

.chat-workspace-page .chat-sidebar-close {
  display: none;
}

.chat-workspace-page .chat-sidebar-toggle:hover,
.chat-workspace-page .chat-sidebar-close:hover,
.chat-workspace-page .chat-search-trigger:hover {
  border-color: var(--nexus-liquid-line-active);
  color: #fff;
  background: var(--nexus-liquid-glass-strong);
}

.chat-workspace-page .chat-new-button,
.chat-workspace-page .chat-search,
.chat-workspace-page .chat-history-view,
.chat-workspace-page .chat-history-item.is-active,
.chat-workspace-page .chat-sidebar-footer :is(a, button) {
  border: 1px solid rgba(205, 227, 255, .13);
  background: var(--nexus-liquid-glass);
  box-shadow: inset 0 1px rgba(255, 255, 255, .075), 0 10px 28px rgba(0, 0, 0, .09);
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

.chat-workspace-page .chat-new-button {
  min-height: 48px;
  border-radius: 16px;
  gap: 11px;
  transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease;
}

.chat-workspace-page .chat-new-button:hover {
  border-color: var(--nexus-liquid-line-active);
  color: #fff;
  background: var(--nexus-liquid-glass-strong);
  transform: translateY(-1px);
}

.chat-workspace-page .chat-new-button .nexus-chat-icon {
  color: var(--chat-accent);
}

.chat-workspace-page .chat-search {
  min-height: 48px;
  padding: 2px 8px 2px 2px;
  border-radius: 16px;
  gap: 6px;
}

.chat-workspace-page .chat-search-trigger {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.chat-workspace-page .chat-search input {
  min-width: 0;
  font-size: 13px;
}

.chat-workspace-page .chat-history-view {
  padding: 4px;
  border-radius: 14px;
}

.chat-workspace-page .chat-history-view button {
  border-radius: 10px;
}

.chat-workspace-page .chat-history-view button[aria-selected="true"] {
  color: #fff;
  background: linear-gradient(135deg, rgba(101, 184, 255, .24), rgba(140, 85, 231, .18));
  box-shadow: inset 0 1px rgba(255, 255, 255, .14);
}

.chat-workspace-page .chat-history-item {
  border: 1px solid transparent;
  border-radius: 14px;
}

.chat-workspace-page .chat-history-item:hover {
  border-color: rgba(207, 228, 255, .11);
  background: rgba(177, 209, 255, .055);
}

.chat-workspace-page .chat-history-item.is-active {
  border-color: rgba(132, 199, 255, .24);
}

.chat-workspace-page .chat-history-actions {
  position: absolute;
  z-index: 3;
  right: 5px;
  padding: 4px;
  border: 1px solid rgba(208, 228, 255, .16);
  border-radius: 13px;
  background: rgba(16, 20, 43, .72);
  box-shadow: 0 10px 32px rgba(0, 0, 0, .28), inset 0 1px rgba(255, 255, 255, .09);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
}

.chat-workspace-page .chat-history-actions button {
  display: grid;
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  place-items: center;
}

.chat-workspace-page .chat-history-actions button[aria-pressed="true"] {
  color: var(--chat-accent);
  background: rgba(100, 191, 255, .12);
}

.chat-workspace-page .chat-history-actions button.is-destructive:hover {
  color: #ffd8df;
  background: rgba(255, 91, 123, .16);
}

.chat-workspace-page .chat-sidebar-footer {
  border-top-color: rgba(219, 234, 255, .1);
  gap: 6px;
}

.chat-workspace-page .chat-sidebar-footer :is(a, button) {
  min-height: 40px;
  padding: 9px 10px;
  border-radius: 13px;
  color: var(--chat-muted);
}

.chat-workspace-page .chat-sidebar-footer :is(a, button):hover {
  border-color: rgba(132, 199, 255, .3);
  color: #fff;
  background: var(--nexus-liquid-glass-strong);
}

.chat-workspace-page.is-sidebar-collapsed {
  grid-template-columns: 76px minmax(0, 1fr);
}

.chat-workspace-page.is-sidebar-collapsed .chat-sidebar {
  padding-inline: 10px;
}

.chat-workspace-page.is-sidebar-collapsed .chat-sidebar-brand {
  justify-content: center;
}

.chat-workspace-page.is-sidebar-collapsed .chat-sidebar-brand > a strong,
.chat-workspace-page.is-sidebar-collapsed .chat-new-button-label,
.chat-workspace-page.is-sidebar-collapsed .chat-search input,
.chat-workspace-page.is-sidebar-collapsed .chat-history,
.chat-workspace-page.is-sidebar-collapsed .chat-sidebar-footer {
  display: none;
}

.chat-workspace-page.is-sidebar-collapsed .chat-sidebar-controls {
  position: absolute;
  top: 8px;
  right: -30px;
}

.chat-workspace-page.is-sidebar-collapsed .chat-sidebar-toggle {
  width: 44px;
  height: 44px;
  color: #fff;
}

.chat-workspace-page.is-sidebar-collapsed .chat-new-button,
.chat-workspace-page.is-sidebar-collapsed .chat-search {
  width: 48px;
  min-width: 48px;
  height: 48px;
  margin-inline: auto;
  padding: 0;
  justify-content: center;
}

.chat-workspace-page.is-sidebar-collapsed .chat-search {
  margin-top: 14px;
}

.chat-workspace-page.is-sidebar-collapsed .chat-search-trigger {
  width: 46px;
  height: 46px;
}

.chat-workspace-page .chat-topbar {
  min-height: 62px;
  border-bottom: 1px solid rgba(211, 230, 255, .11);
  background:
    linear-gradient(105deg, rgba(114, 170, 255, .08), rgba(82, 58, 149, .055)),
    rgba(7, 10, 25, .34);
  box-shadow: inset 0 -1px rgba(255, 255, 255, .025);
  backdrop-filter: blur(28px) saturate(150%);
  -webkit-backdrop-filter: blur(28px) saturate(150%);
}

.chat-workspace-page .chat-transcript {
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, rgba(90, 119, 210, .028), transparent 20%);
}

.chat-workspace-page .chat-starters button,
.chat-workspace-page .chat-message-details > summary,
.chat-workspace-page .chat-message-user-actions button,
.chat-workspace-page .chat-message-tools button,
.chat-workspace-page .chat-scroll-to-end,
.chat-workspace-page .chat-generated-art figcaption button {
  border: 1px solid rgba(211, 229, 255, .13);
  background: var(--nexus-liquid-glass);
  box-shadow: inset 0 1px rgba(255, 255, 255, .075), 0 8px 24px rgba(0, 0, 0, .11);
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

.chat-workspace-page .chat-starters {
  gap: 10px;
}

.chat-workspace-page .chat-starters button {
  min-height: 58px;
  padding: 13px 15px;
  border-radius: 18px;
}

.chat-workspace-page .chat-starters button:hover {
  padding-left: 17px;
  border-color: var(--nexus-liquid-line-active);
  background: var(--nexus-liquid-glass-strong);
  transform: translateY(-1px);
}

.chat-workspace-page .chat-message-user-actions button,
.chat-workspace-page .chat-message-tools button {
  display: grid;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border-radius: 14px;
  place-items: center;
  color: var(--chat-muted);
}

.chat-workspace-page .chat-message-tools {
  gap: 7px;
}

.chat-workspace-page .chat-message-tools button:hover,
.chat-workspace-page .chat-message-user-actions button:hover,
.chat-workspace-page .chat-message-tools button[aria-pressed="true"] {
  border-color: var(--nexus-liquid-line-active);
  color: #fff;
  background: var(--nexus-liquid-glass-strong);
}

.chat-workspace-page .chat-generated-art figcaption button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 7px;
}

.chat-workspace-page .chat-art-settings,
.chat-workspace-page .chat-attachment-preview,
.chat-workspace-page .chat-editing-message,
.chat-workspace-page .chat-composer-details[open] {
  border: 1px solid var(--nexus-liquid-line);
  background: var(--nexus-liquid-glass);
  box-shadow: var(--nexus-liquid-shadow);
  backdrop-filter: var(--nexus-liquid-blur);
  -webkit-backdrop-filter: var(--nexus-liquid-blur);
}

.chat-workspace-page .chat-art-settings {
  border-radius: 22px;
}

.chat-workspace-page .chat-art-settings select,
.chat-workspace-page .chat-branch-picker select {
  border-color: rgba(211, 231, 255, .17);
  color: var(--chat-text);
  background: rgba(10, 13, 32, .58);
}

.chat-workspace-page .chat-attachment-preview,
.chat-workspace-page .chat-editing-message {
  border-radius: 16px;
}

.chat-workspace-page .chat-composer-shell {
  position: relative;
  z-index: 6;
  width: min(1040px, calc(100% - 56px));
  padding: 12px 0 max(16px, env(safe-area-inset-bottom));
}

.chat-workspace-page .chat-composer {
  position: relative;
  isolation: isolate;
  min-height: 122px;
  padding: 11px 13px;
  border: 1px solid var(--nexus-liquid-line);
  border-radius: 30px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-rows: minmax(52px, auto) auto;
  align-items: end;
  gap: 10px;
  background:
    radial-gradient(circle at 82% 116%, rgba(255, 111, 183, .13), transparent 32%),
    radial-gradient(circle at 12% -28%, rgba(104, 190, 255, .16), transparent 38%),
    linear-gradient(135deg, rgba(133, 174, 244, .11), rgba(65, 43, 116, .095) 58%, rgba(255, 255, 255, .035)),
    rgba(13, 16, 38, .44);
  box-shadow: 0 30px 90px rgba(0, 2, 17, .42), inset 0 1px rgba(255, 255, 255, .2), inset 0 -1px rgba(255, 255, 255, .035);
  backdrop-filter: blur(34px) saturate(175%);
  -webkit-backdrop-filter: blur(34px) saturate(175%);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.chat-workspace-page .chat-composer::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: inherit;
  background: linear-gradient(115deg, rgba(255, 255, 255, .085), transparent 24%, transparent 72%, rgba(196, 161, 255, .05));
  content: "";
  pointer-events: none;
}

.chat-workspace-page .chat-composer::after {
  position: absolute;
  right: 9%;
  bottom: -18px;
  z-index: 0;
  width: 190px;
  height: 70px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(113, 122, 255, .12), rgba(255, 117, 184, .07) 45%, transparent 73%);
  content: "";
  filter: blur(13px);
  pointer-events: none;
}

.chat-workspace-page .chat-composer > * {
  position: relative;
  z-index: 1;
}

.chat-workspace-page .chat-composer:focus-within {
  border-color: var(--nexus-liquid-line-active);
  box-shadow: 0 0 0 4px rgba(93, 184, 255, .075), 0 34px 100px rgba(0, 2, 20, .48), inset 0 1px rgba(255, 255, 255, .24);
  transform: translateY(-1px);
}

.chat-workspace-page .chat-composer textarea {
  min-height: 52px;
  max-height: 225px;
  padding: 9px 12px 4px;
  align-self: stretch;
  grid-column: 1 / -1;
  grid-row: 1;
  color: #f4f7ff;
  font-size: 17px;
  line-height: 1.5;
}

.chat-workspace-page .chat-composer textarea::placeholder {
  color: rgba(219, 226, 244, .57);
}

.chat-workspace-page .chat-composer-tools,
.chat-workspace-page .chat-composer-actions {
  align-self: end;
  gap: 6px;
}

.chat-workspace-page .chat-composer-tools {
  grid-column: 1;
  grid-row: 2;
}

.chat-workspace-page .chat-composer-actions {
  grid-column: 2 / -1;
  grid-row: 2;
  justify-self: end;
  justify-content: flex-end;
}

.chat-workspace-page .chat-composer-menu {
  position: relative;
}

.chat-workspace-page .chat-composer-menu > summary,
.chat-workspace-page .chat-composer-actions > button {
  display: grid;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  border: 1px solid rgba(214, 231, 255, .16);
  border-radius: 50%;
  place-items: center;
  color: rgba(238, 244, 255, .84);
  background: linear-gradient(145deg, rgba(255, 255, 255, .095), rgba(127, 163, 229, .045));
  box-shadow: inset 0 1px rgba(255, 255, 255, .12), 0 9px 28px rgba(0, 0, 0, .16);
  backdrop-filter: blur(18px) saturate(155%);
  -webkit-backdrop-filter: blur(18px) saturate(155%);
  cursor: pointer;
  list-style: none;
}

.chat-workspace-page .chat-composer-menu > summary::-webkit-details-marker {
  display: none;
}

.chat-workspace-page .chat-composer-menu > summary:hover,
.chat-workspace-page .chat-composer-menu[open] > summary,
.chat-workspace-page .chat-composer-actions > button:hover {
  border-color: var(--nexus-liquid-line-active);
  color: #fff;
  background: var(--nexus-liquid-glass-strong);
}

.chat-workspace-page .chat-composer-menu[open] > summary {
  transform: rotate(45deg);
}

.chat-workspace-page .chat-composer-menu-panel {
  position: absolute;
  bottom: calc(100% + 16px);
  left: 0;
  display: grid;
  width: min(330px, calc(100vw - 28px));
  max-height: min(380px, calc(100dvh - 250px));
  padding: 10px;
  border: 1px solid rgba(218, 233, 255, .21);
  border-radius: 24px;
  gap: 5px;
  color: var(--chat-text);
  background:
    radial-gradient(circle at 15% 0, rgba(95, 187, 255, .17), transparent 34%),
    radial-gradient(circle at 100% 100%, rgba(220, 89, 207, .13), transparent 34%),
    rgba(12, 14, 35, .76);
  box-shadow: 0 32px 90px rgba(0, 0, 0, .48), inset 0 1px rgba(255, 255, 255, .16);
  backdrop-filter: blur(34px) saturate(180%);
  -webkit-backdrop-filter: blur(34px) saturate(180%);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: rgba(173, 211, 255, .34) transparent;
}

.chat-workspace-page .chat-composer-menu-panel > p {
  margin: 4px 8px 8px;
  color: rgba(221, 230, 246, .62);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.chat-workspace-page .chat-composer-menu-panel > :is(button, label) {
  display: grid;
  width: 100%;
  height: auto;
  min-height: 52px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 16px;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-auto-flow: row;
  place-items: initial;
  align-items: center;
  gap: 10px;
  color: var(--chat-text);
  text-align: left;
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.chat-workspace-page .chat-composer-menu-panel > :is(button, label):hover,
.chat-workspace-page .chat-composer-menu-panel > button[aria-pressed="true"] {
  border-color: rgba(183, 215, 255, .16);
  background: linear-gradient(135deg, rgba(112, 186, 255, .13), rgba(150, 91, 220, .09));
}

.chat-workspace-page .chat-composer-menu-panel label:has(input:focus-visible) {
  border-color: var(--nexus-liquid-line-active);
  outline: 2px solid rgba(120, 194, 255, .35);
  outline-offset: 2px;
  background: linear-gradient(135deg, rgba(112, 186, 255, .13), rgba(150, 91, 220, .09));
}

.chat-workspace-page .chat-composer-menu-icon {
  display: grid;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(207, 229, 255, .15);
  border-radius: 13px;
  place-items: center;
  color: var(--chat-accent);
  background: var(--nexus-liquid-glass);
  box-shadow: inset 0 1px rgba(255, 255, 255, .09);
}

.chat-workspace-page .chat-composer-menu-panel strong,
.chat-workspace-page .chat-composer-menu-panel small {
  display: block;
}

.chat-workspace-page .chat-composer-menu-panel strong {
  font-size: 14px;
  line-height: 1.25;
}

.chat-workspace-page .chat-composer-menu-panel small {
  margin-top: 3px;
  color: rgba(211, 221, 239, .58);
  font-size: 12px;
  line-height: 1.3;
}

.chat-workspace-page .chat-composer-menu-panel input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.chat-workspace-page .chat-composer-profile {
  display: grid;
  margin-top: 5px;
  padding: 12px 10px 10px;
  border-top: 1px solid rgba(213, 231, 255, .1);
  gap: 8px;
}

.chat-workspace-page .chat-composer-profile > span {
  color: rgba(215, 224, 241, .62);
  font-size: 12px;
  font-weight: 700;
}

.chat-workspace-page .chat-composer-menu-panel .chat-turn-profile {
  display: grid;
  width: 100%;
  min-width: 0;
  min-height: 42px;
  padding: 3px;
  border: 1px solid rgba(211, 229, 255, .14);
  border-radius: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3px;
  background: rgba(255, 255, 255, .035);
}

.chat-workspace-page .chat-composer-menu-panel .chat-turn-profile button {
  min-width: 0;
  min-height: 36px;
  padding: 0 7px;
  border-radius: 11px;
  font-size: 12px;
}

.chat-workspace-page .chat-composer-menu-panel .chat-turn-profile button[aria-pressed="true"] {
  color: #fff;
  background: linear-gradient(135deg, rgba(89, 182, 255, .65), rgba(125, 87, 226, .62));
  box-shadow: inset 0 1px rgba(255, 255, 255, .22), 0 8px 20px rgba(72, 64, 188, .22);
}

.chat-workspace-page .chat-composer-menu-panel :is(.chat-engine-upgrade, .chat-engine-quota) {
  min-height: 40px;
  margin: 2px 4px 0;
  padding: 9px 10px;
  border: 1px solid rgba(210, 229, 255, .13);
  border-radius: 13px;
  color: var(--chat-muted);
  background: rgba(255, 255, 255, .035);
  font-size: 12px;
  text-decoration: none;
}

.chat-workspace-page .chat-composer-engine {
  position: relative;
  display: flex;
  width: auto;
  min-width: 138px;
  height: 48px;
  padding: 0 34px 0 13px;
  border: 1px solid rgba(210, 229, 255, .16);
  border-radius: 999px;
  align-items: center;
  gap: 8px;
  color: rgba(238, 244, 255, .88);
  background: linear-gradient(145deg, rgba(255, 255, 255, .09), rgba(116, 141, 220, .055));
  box-shadow: inset 0 1px rgba(255, 255, 255, .11), 0 9px 28px rgba(0, 0, 0, .14);
  backdrop-filter: blur(18px) saturate(155%);
  -webkit-backdrop-filter: blur(18px) saturate(155%);
}

.chat-workspace-page .chat-composer-engine:focus-within,
.chat-workspace-page .chat-composer-engine:hover {
  border-color: var(--nexus-liquid-line-active);
  background: var(--nexus-liquid-glass-strong);
}

.chat-workspace-page .chat-composer-engine > .nexus-chat-icon:first-child {
  color: #f4f7ff;
  filter: drop-shadow(0 0 9px rgba(104, 194, 255, .5));
}

.chat-workspace-page .chat-composer-engine > .nexus-chat-icon:last-child {
  position: absolute;
  right: 11px;
  pointer-events: none;
}

.chat-workspace-page .chat-composer-engine select {
  min-width: 0;
  max-width: 145px;
  height: 46px;
  padding: 0;
  border: 0;
  outline: 0;
  appearance: none;
  color: inherit;
  background: transparent;
  font: 700 14px var(--font-geist-sans), sans-serif;
  cursor: pointer;
}

.chat-workspace-page .chat-composer-engine option {
  color: #edf3ff;
  background: #14162d;
}

.chat-workspace-page .chat-composer-actions .chat-send-button {
  border-color: rgba(255, 255, 255, .72);
  color: #15172d;
  background: linear-gradient(145deg, rgba(255, 255, 255, .98), rgba(222, 231, 255, .88));
  box-shadow: 0 10px 30px rgba(96, 143, 255, .22), inset 0 1px #fff;
}

.chat-workspace-page .chat-composer-actions .chat-send-button:not(:disabled):hover {
  color: #070a17;
  background: #fff;
  transform: translateY(-1px) scale(1.02);
}

.chat-workspace-page .chat-composer-actions .chat-send-button[aria-disabled="true"] {
  opacity: .45;
}

.chat-workspace-page .chat-composer-actions .chat-stop-button {
  border-color: rgba(255, 169, 190, .42);
  color: #fff;
  background: linear-gradient(145deg, rgba(255, 113, 151, .78), rgba(196, 63, 116, .66));
  box-shadow: 0 10px 30px rgba(255, 72, 126, .18), inset 0 1px rgba(255, 255, 255, .25);
}

.chat-workspace-page .chat-composer-details {
  margin-top: 6px;
}

.chat-workspace-page .chat-composer-details[open] {
  padding: 8px 12px 12px;
  border-radius: 18px;
}

.chat-workspace-page .chat-composer-details > summary {
  border: 1px solid transparent;
  border-radius: 12px;
}

.chat-workspace-page .chat-composer-details > summary:hover {
  border-color: rgba(211, 229, 255, .13);
  background: var(--nexus-liquid-glass);
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .chat-workspace-page .chat-sidebar,
  .chat-workspace-page .chat-topbar,
  .chat-workspace-page .chat-composer,
  .chat-workspace-page .chat-composer-menu-panel,
  .chat-workspace-page .chat-art-settings,
  .chat-workspace-page .chat-attachment-preview {
    background-color: rgba(13, 16, 36, .94);
  }
}

@media (max-width: 860px) {
  .chat-workspace-page,
  .chat-workspace-page.is-sidebar-collapsed {
    grid-template-columns: minmax(0, 1fr);
  }

  .chat-workspace-page > .chat-sidebar,
  .chat-workspace-page.is-sidebar-collapsed > .chat-sidebar {
    position: absolute;
    z-index: 20;
    inset: 0 auto 0 0;
    width: min(20rem, 88vw);
    min-height: 100%;
    padding: max(12px, env(safe-area-inset-top)) 12px max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
    overflow-x: hidden;
    overflow-y: auto;
    transform: translateX(-102%);
    transition: transform .24s cubic-bezier(.22, 1, .36, 1);
  }

  .chat-workspace-page > .chat-sidebar.is-open {
    transform: translateX(0);
  }

  .chat-workspace-page > .chat-main {
    height: 100%;
  }

  .chat-workspace-page .chat-mobile-menu {
    width: 44px;
    min-width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--nexus-liquid-line);
    border-radius: 50%;
    color: rgba(238, 244, 255, .88);
    background: var(--nexus-liquid-glass-strong);
    box-shadow: inset 0 1px rgba(255, 255, 255, .13), 0 10px 30px rgba(0, 0, 0, .24);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
  }

  .chat-workspace-page .chat-sidebar-backdrop {
    background: rgba(3, 5, 18, .58);
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
  }

  .chat-workspace-page .chat-sidebar-toggle {
    display: none;
  }

  .chat-workspace-page .chat-sidebar-close {
    display: grid;
  }

  .chat-workspace-page.is-sidebar-collapsed .chat-sidebar {
    padding-inline: 13px;
  }

  .chat-workspace-page.is-sidebar-collapsed .chat-sidebar-brand {
    justify-content: space-between;
  }

  .chat-workspace-page.is-sidebar-collapsed .chat-sidebar-brand > a strong,
  .chat-workspace-page.is-sidebar-collapsed .chat-new-button-label,
  .chat-workspace-page.is-sidebar-collapsed .chat-search input,
  .chat-workspace-page.is-sidebar-collapsed .chat-history,
  .chat-workspace-page.is-sidebar-collapsed .chat-sidebar-footer {
    display: initial;
  }

  .chat-workspace-page.is-sidebar-collapsed .chat-history,
  .chat-workspace-page.is-sidebar-collapsed .chat-sidebar-footer {
    display: block;
  }

  .chat-workspace-page.is-sidebar-collapsed .chat-new-button,
  .chat-workspace-page.is-sidebar-collapsed .chat-search {
    width: 100%;
    height: auto;
    margin-inline: 0;
    padding: 4px 8px 4px 4px;
    justify-content: flex-start;
  }

  .chat-workspace-page.is-sidebar-collapsed .chat-new-button {
    padding: 0 13px;
  }
}

@media (max-width: 720px) {
  .chat-workspace-page .chat-composer-shell {
    width: calc(100% - 16px);
    padding-bottom: max(8px, env(safe-area-inset-bottom));
  }

  .chat-workspace-page .chat-composer {
    min-height: 118px;
    padding: 9px;
    border-radius: 24px;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-rows: minmax(48px, auto) auto;
    gap: 6px;
  }

  .chat-workspace-page .chat-composer textarea {
    min-height: 50px;
    max-height: min(30dvh, 180px);
    padding: 10px 8px 5px;
    grid-column: 1 / -1;
    grid-row: 1;
    font-size: 16px;
  }

  .chat-workspace-page .chat-composer-tools {
    grid-column: 1;
    grid-row: 2;
  }

  .chat-workspace-page .chat-composer-actions {
    min-width: 0;
    grid-column: 2 / -1;
    grid-row: 2;
  }

  .chat-workspace-page .chat-composer-menu > summary,
  .chat-workspace-page .chat-composer-actions > button {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }

  .chat-workspace-page .chat-composer-engine {
    min-width: 128px;
    height: 44px;
    padding-left: 11px;
  }

  .chat-workspace-page .chat-composer-engine select {
    height: 42px;
    max-width: 116px;
    font-size: 13px;
  }

  .chat-workspace-page .chat-composer-menu-panel {
    bottom: calc(100% + 12px);
  }
}

@media (max-width: 520px) {
  .chat-workspace-page .chat-live-button {
    display: none !important;
  }

  .chat-workspace-page .chat-composer-engine {
    min-width: 120px;
  }

  .chat-workspace-page .chat-composer-engine select {
    max-width: 106px;
  }
}

@media (max-width: 390px) {
  .chat-workspace-page .chat-composer-actions {
    gap: 4px;
  }

  .chat-workspace-page .chat-composer-engine {
    min-width: 106px;
    padding: 0 25px 0 9px;
  }

  .chat-workspace-page .chat-composer-engine > .nexus-chat-icon:first-child {
    display: none;
  }

  .chat-workspace-page .chat-composer-engine select {
    max-width: 88px;
    font-size: 12px;
  }

  .chat-workspace-page .chat-composer-actions .chat-voice-button:not(.chat-live-button) {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-workspace-page,
  .chat-workspace-page .chat-sidebar,
  .chat-workspace-page .chat-composer,
  .chat-workspace-page .chat-composer-menu > summary {
    transition: none;
  }
}

/* CHAT CANON V12 · GLASS ICON DOCK
 * O compositor volta a ser uma única lâmina de escrita. Ações permanecem no
 * mesmo formulário e conservam seus handlers, mas são visualmente externas,
 * independentes e nomeadas por acessibilidade. Nenhuma autoridade funcional,
 * de motor, memória, autenticação ou transporte é alterada por esta camada. */
.chat-workspace-page.chat-workspace-lambda .chat-composer-shell {
  width: min(1040px, calc(100% - 56px));
  padding-top: 14px;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer {
  min-height: 92px;
  margin-bottom: 68px;
  padding: 14px 18px;
  border-color: rgba(207, 229, 255, .2);
  border-radius: 28px;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(62px, auto);
  align-items: stretch;
  gap: 0;
  background:
    radial-gradient(circle at 15% -55%, rgba(104, 190, 255, .18), transparent 42%),
    radial-gradient(circle at 88% 145%, rgba(206, 104, 255, .12), transparent 38%),
    linear-gradient(135deg, rgba(125, 168, 230, .1), rgba(35, 28, 72, .08) 60%, rgba(255, 255, 255, .025)),
    rgba(12, 17, 31, .58);
  box-shadow:
    0 28px 88px rgba(0, 2, 17, .4),
    inset 0 1px rgba(255, 255, 255, .19),
    inset 0 -1px rgba(255, 255, 255, .035);
  overflow: visible;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer textarea {
  min-height: 62px;
  padding: 12px 10px;
  grid-column: 1;
  grid-row: 1;
  font-size: 17px;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-tools {
  position: absolute;
  bottom: -60px;
  left: 4px;
  display: flex;
  align-items: center;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-actions {
  position: absolute;
  right: 4px;
  bottom: -60px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary,
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button,
.chat-workspace-page.chat-workspace-lambda .chat-composer-engine {
  width: 50px;
  height: 50px;
  min-width: 50px;
  min-height: 50px;
  padding: 0;
  border: 1px solid rgba(211, 231, 255, .18);
  border-radius: 50%;
  place-items: center;
  color: rgba(239, 246, 255, .9);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, .11), rgba(98, 136, 200, .045)),
    rgba(13, 19, 31, .46);
  box-shadow:
    0 13px 34px rgba(0, 0, 0, .22),
    inset 0 1px rgba(255, 255, 255, .16);
  backdrop-filter: blur(24px) saturate(170%);
  -webkit-backdrop-filter: blur(24px) saturate(170%);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary:hover,
.chat-workspace-page.chat-workspace-lambda .chat-composer-menu[open] > summary,
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button:hover,
.chat-workspace-page.chat-workspace-lambda .chat-composer-engine:hover,
.chat-workspace-page.chat-workspace-lambda .chat-composer-engine:focus-within {
  border-color: rgba(126, 204, 255, .64);
  color: #fff;
  background:
    linear-gradient(145deg, rgba(125, 208, 255, .18), rgba(144, 103, 230, .1)),
    rgba(17, 25, 43, .64);
  box-shadow:
    0 0 0 3px rgba(98, 202, 255, .07),
    0 15px 38px rgba(0, 0, 0, .28),
    inset 0 1px rgba(255, 255, 255, .2);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-engine {
  position: relative;
  display: grid;
  overflow: visible;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu[open] > summary {
  transform: none;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary,
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button {
  position: relative;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-engine::after {
  position: absolute;
  bottom: calc(100% + 9px);
  left: 50%;
  z-index: 18;
  width: max-content;
  max-width: 190px;
  padding: 6px 9px;
  border: 1px solid rgba(211, 231, 255, .16);
  border-radius: 9px;
  color: rgba(244, 248, 255, .94);
  background: rgba(13, 18, 29, .88);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .3), inset 0 1px rgba(255, 255, 255, .12);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  font: 650 12px/1.25 var(--font-geist-sans), sans-serif;
  letter-spacing: .01em;
  content: attr(title);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px);
  transition: opacity .16s ease, transform .16s ease;
  white-space: normal;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary:hover::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary:focus-visible::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button:hover::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button:focus-visible::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-engine:hover::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-engine:focus-within::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-engine select {
  position: absolute;
  inset: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-engine > .nexus-chat-icon:first-child {
  display: block;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-engine > .nexus-chat-icon:last-child {
  display: none;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel {
  bottom: calc(100% + 14px);
  left: 0;
  width: auto;
  max-width: min(340px, calc(100vw - 28px));
  padding: 11px;
  border-radius: 26px;
  grid-template-columns: repeat(4, 52px);
  gap: 8px;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel > p,
.chat-workspace-page.chat-workspace-lambda .chat-composer-profile > span {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel > :is(button, label) {
  display: grid;
  width: 52px;
  height: 52px;
  min-width: 52px;
  min-height: 52px;
  padding: 0;
  border: 1px solid rgba(207, 229, 255, .15);
  border-radius: 50%;
  grid-template-columns: 1fr;
  place-items: center;
  background: rgba(255, 255, 255, .035);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel > :is(button, label) > span:not(.chat-composer-menu-icon) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-icon {
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  color: var(--chat-accent);
  background: transparent;
  box-shadow: none;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-profile {
  display: grid;
  margin: 2px 0 0;
  padding: 10px 0 0;
  border-top: 1px solid rgba(213, 231, 255, .1);
  grid-column: 1 / -1;
  gap: 0;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel .chat-turn-profile {
  display: flex;
  width: auto;
  min-width: 0;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  justify-content: center;
  gap: 8px;
  background: transparent;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel .chat-turn-profile button {
  display: grid;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  border: 1px solid rgba(207, 229, 255, .15);
  border-radius: 50%;
  place-items: center;
  color: rgba(234, 243, 255, .78);
  background: rgba(255, 255, 255, .035);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel .chat-turn-profile button[aria-pressed="true"] {
  border-color: rgba(128, 206, 255, .62);
  color: #fff;
  background: linear-gradient(135deg, rgba(89, 182, 255, .58), rgba(125, 87, 226, .54));
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel :is(.chat-engine-upgrade, .chat-engine-quota) {
  grid-column: 1 / -1;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-actions .chat-send-button,
.chat-workspace-page.chat-workspace-lambda .chat-composer-actions .chat-stop-button {
  margin-left: 2px;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary {
  position: relative;
  display: grid;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: 1px solid rgba(211, 231, 255, .14);
  border-radius: 50%;
  place-items: center;
  color: rgba(229, 240, 255, .72);
  background: rgba(13, 19, 31, .34);
  box-shadow: inset 0 1px rgba(255, 255, 255, .1);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-details[open] > summary::after {
  position: absolute;
  bottom: calc(100% + 9px);
  left: 0;
  z-index: 18;
  width: max-content;
  max-width: 190px;
  padding: 6px 9px;
  border: 1px solid rgba(211, 231, 255, .16);
  border-radius: 9px;
  color: rgba(244, 248, 255, .94);
  background: rgba(13, 18, 29, .88);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .3), inset 0 1px rgba(255, 255, 255, .12);
  font: 650 12px/1.25 var(--font-geist-sans), sans-serif;
  letter-spacing: .01em;
  content: attr(title);
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity .16s ease, transform .16s ease;
  white-space: nowrap;
}

.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary:hover::after,
.chat-workspace-page.chat-workspace-lambda .chat-composer-details > summary:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 720px) {
  .chat-workspace-page.chat-workspace-lambda .chat-composer-shell {
    width: calc(100% - 20px);
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer {
    min-height: 82px;
    margin-bottom: 62px;
    padding: 10px 12px;
    border-radius: 24px;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(58px, auto);
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer textarea {
    min-height: 58px;
    padding: 10px 8px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-tools {
    bottom: -55px;
    left: 0;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-actions {
    right: 0;
    bottom: -55px;
    gap: 6px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary,
  .chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button,
  .chat-workspace-page.chat-workspace-lambda .chat-composer-engine {
    width: 46px;
    height: 46px;
    min-width: 46px;
    min-height: 46px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel {
    grid-template-columns: repeat(4, 48px);
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-menu-panel > :is(button, label) {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
  }
}

@media (max-width: 430px) {
  .chat-workspace-page.chat-workspace-lambda .chat-live-button {
    display: grid !important;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-actions {
    gap: 4px;
  }

  .chat-workspace-page.chat-workspace-lambda .chat-composer-menu > summary,
  .chat-workspace-page.chat-workspace-lambda .chat-composer-actions > button,
  .chat-workspace-page.chat-workspace-lambda .chat-composer-engine {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }
}

/* SCHAHUDOG is a web chat surface, not the CODEX DRAGON workstation. */
body.nexus-web-chat {
  color: var(--nexus-chat-ink);
  background:
    radial-gradient(circle at 50% -28%, rgba(38, 108, 184, .14), transparent 39%),
    var(--nexus-chat-night);
  font-family: var(--nexus-chat-ui);
}

body.nexus-web-chat::before {
  opacity: .14;
  background-image: radial-gradient(rgba(108, 193, 245, .28) .55px, transparent .8px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, #000, transparent 70%);
}

.nexus-web-chat .app {
  grid-template-columns: 268px minmax(0, 1fr);
  grid-template-rows: 48px minmax(0, 1fr);
}

.nexus-web-chat .menu-bar {
  grid-column: 1 / -1;
  min-height: 48px;
  padding: 0 16px;
  border-bottom: 1px solid var(--nexus-chat-line);
  background: rgba(9, 13, 18, .92);
  backdrop-filter: blur(22px) saturate(125%);
}

.nexus-web-chat .menu-bar .menu-word,
.nexus-web-chat .window-controls,
.nexus-web-chat .top-nav:not(#topToggleSidebar) {
  display: none;
}

.nexus-web-chat .brand-drag {
  margin: 0 0 0 8px;
  color: var(--nexus-chat-muted);
  font-family: var(--nexus-chat-serif);
  font-size: 13px;
  letter-spacing: .08em;
}

.nexus-web-chat .rail,
.nexus-web-chat .inspector,
.nexus-web-chat .bottom-panel,
.nexus-web-chat .sidebar-actions,
.nexus-web-chat .project-block {
  display: none !important;
}

.nexus-web-chat .sidebar {
  grid-column: 1;
  grid-row: 2;
  border-right: 1px solid var(--nexus-chat-line);
  background: rgba(9, 13, 18, .97);
  backdrop-filter: none;
}

.nexus-web-chat .sidebar-brand strong {
  color: var(--nexus-chat-ink);
  font-family: var(--nexus-chat-serif);
  font-size: 15px;
  font-weight: 600;
}

.nexus-web-chat .new-chat,
.nexus-web-chat .project-card,
.nexus-web-chat .chat-item,
.nexus-web-chat .archived-toggle,
.nexus-web-chat .sidebar-action {
  border-radius: 9px;
}

.nexus-web-chat .chat-row:hover,
.nexus-web-chat .chat-row[data-active="true"],
.nexus-web-chat .chat-item:hover,
.nexus-web-chat .chat-item[data-active="true"] {
  background: rgba(98, 202, 255, .07);
}

.nexus-web-chat .main-shell {
  grid-column: 2;
  grid-row: 2;
  width: 100%;
  min-width: 0;
  grid-template-rows: 58px minmax(0, 1fr) auto;
  background: transparent;
}

.nexus-web-chat .thread-head {
  min-width: 0;
  padding: 0 clamp(18px, 3vw, 38px);
  border-bottom: 1px solid var(--nexus-chat-line);
  background: rgba(9, 13, 18, .78);
  backdrop-filter: blur(18px);
}

.nexus-web-chat .thread-title {
  color: var(--nexus-chat-ink);
  font-family: var(--nexus-chat-serif);
  font-size: 14px;
  font-weight: 600;
}

.nexus-web-chat .engine-top-button,
.nexus-web-chat .context-pill,
.nexus-web-chat .head-button {
  border-color: var(--nexus-chat-line);
  background: rgba(255, 255, 255, .018);
}

.nexus-web-chat .engine-status {
  min-width: 0;
  max-width: min(44vw, 330px);
}

.nexus-web-chat :is(#openInButton, #branchPill, #toggleReview, #toggleBottom) {
  display: none;
}

.nexus-web-chat .messages {
  padding: 34px clamp(24px, 5vw, 72px) 42px;
}

.nexus-web-chat .empty-inner {
  max-width: 860px;
  padding: 32px 18px 42px;
}

.nexus-web-chat .empty-mark-image {
  width: clamp(122px, 14vw, 158px);
  height: auto;
  margin-bottom: 16px;
  filter: drop-shadow(0 18px 34px rgba(20, 92, 186, .2));
}

.nexus-web-chat .empty-state .eyebrow {
  color: var(--nexus-chat-blue);
  font: 750 9px ui-monospace, monospace;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.nexus-web-chat .empty-state h1 {
  max-width: 840px;
  margin: 15px 0 0;
  color: var(--nexus-chat-ink);
  font: 500 clamp(40px, 5.4vw, 66px)/.98 var(--nexus-chat-serif);
  letter-spacing: -.045em;
  text-wrap: balance;
}

.nexus-web-chat .empty-state > .empty-inner > p {
  max-width: 680px;
  margin: 20px auto 0;
  color: var(--nexus-chat-warm);
  font: 400 clamp(16px, 1.6vw, 19px)/1.55 var(--nexus-chat-serif);
  text-wrap: balance;
}

.nexus-web-chat .principles {
  display: grid;
  margin-top: 34px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 34px;
}

.nexus-web-chat .principle {
  display: flex;
  min-height: 54px;
  padding: 13px 10px;
  border: 0;
  border-bottom: 1px solid var(--nexus-chat-line);
  border-radius: 0;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  text-align: left;
  background: transparent;
}

.nexus-web-chat .principle strong {
  color: var(--nexus-chat-ink);
  font-size: 12px;
  font-weight: 650;
}

.nexus-web-chat .principle span {
  color: var(--nexus-chat-muted);
  font-size: 10px;
}

.nexus-web-chat .message {
  max-width: 850px;
  margin-bottom: 24px;
}

.nexus-web-chat .message-body {
  font-size: 15px;
  line-height: 1.75;
}

.nexus-web-chat .message.user .message-body {
  border: 1px solid var(--nexus-chat-line);
  border-radius: 14px;
  background: var(--nexus-chat-surface);
}

.nexus-web-chat .composer-wrap {
  padding: 10px 24px max(18px, env(safe-area-inset-bottom));
  background: linear-gradient(180deg, transparent, var(--nexus-chat-night) 28%);
}

.nexus-web-chat .composer {
  max-width: 850px;
  border: 1px solid var(--nexus-chat-line-strong);
  border-radius: 17px;
  background: rgba(18, 25, 33, .96);
  box-shadow: 0 22px 60px rgba(0, 0, 0, .28);
}

.nexus-web-chat .composer:focus-within {
  border: 1px solid var(--nexus-chat-blue);
  box-shadow: 0 0 0 3px rgba(98, 202, 255, .07), 0 24px 64px rgba(0, 0, 0, .34);
}

.nexus-web-chat .composer textarea {
  min-height: 64px;
  color: var(--nexus-chat-ink);
  font: 14px/1.55 var(--nexus-chat-ui);
}

.nexus-web-chat .send-button {
  color: #061018;
  background: var(--nexus-chat-blue);
}

.nexus-web-chat .composer-note {
  max-width: 850px;
  color: #687783;
}

.nexus-web-chat .access-card {
  max-height: calc(100vh - 40px);
  max-height: calc(100dvh - 40px);
  overflow-y: auto;
  overscroll-behavior: contain;
  border-color: var(--nexus-chat-line-strong);
  border-radius: 22px;
  background: rgba(14, 20, 27, .97);
  box-shadow: 0 34px 110px rgba(0, 0, 0, .54);
}

.nexus-web-chat .access-gate {
  overflow-y: auto;
}

.nexus-web-chat .access-symbol {
  width: 144px;
  height: 144px;
  object-fit: contain;
}

.nexus-web-chat :is(button, a, input, textarea):focus-visible {
  outline: 2px solid var(--nexus-chat-blue);
  outline-offset: 3px;
}

@media (max-width: 900px) {
  .chat-workspace-page .chat-welcome h1,
  .nexus-web-chat .empty-state h1 {
    font-size: clamp(36px, 8vw, 54px);
  }

  .chat-workspace-page .chat-starters,
  .nexus-web-chat .principles {
    gap: 0 20px;
  }
}

@media (max-width: 760px) {
  .nexus-web-chat .app {
    grid-template-columns: minmax(0, 1fr);
  }

  .nexus-web-chat .main-shell {
    grid-column: 1;
  }

  .nexus-web-chat .sidebar {
    position: fixed;
    z-index: 70;
    inset: 48px auto 0 0;
    display: block;
    width: min(86vw, 292px);
    box-shadow: 24px 0 80px rgba(0, 0, 0, .5);
  }

  .nexus-web-chat .sidebar[hidden] {
    display: none !important;
  }

  .nexus-web-chat .thread-head {
    padding-inline: 14px;
  }

  .nexus-web-chat .engine-state,
  .nexus-web-chat .context-pill,
  .nexus-web-chat .head-button {
    display: none;
  }

  .nexus-web-chat .messages {
    padding-inline: 14px;
  }

  .nexus-web-chat .composer-wrap {
    padding-inline: 10px;
  }
}

@media (max-width: 620px) {
  .chat-workspace-page .chat-welcome {
    width: calc(100% - 28px);
    padding-block: 30px 28px;
  }

  .chat-workspace-page .chat-welcome h1,
  .nexus-web-chat .empty-state h1 {
    font-size: clamp(32px, 10.6vw, 45px);
    line-height: 1.02;
  }

  .chat-workspace-page .chat-welcome > span,
  .nexus-web-chat .empty-state > .empty-inner > p {
    font-size: 16px;
  }

  .chat-workspace-page .chat-starters,
  .nexus-web-chat .principles {
    grid-template-columns: 1fr;
  }

  .chat-workspace-page .chat-message-list,
  .chat-workspace-page .chat-composer-shell {
    width: calc(100% - 24px);
  }

  .chat-workspace-page .chat-message {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 11px;
  }

  .chat-workspace-page .chat-runtime-bar {
    margin-inline: -2px;
    padding-bottom: 1px;
  }

  .chat-workspace-page .chat-runtime-edition small,
  .chat-workspace-page .chat-runtime-engine > span,
  .chat-workspace-page .chat-turn-profile > span {
    display: none;
  }

  .chat-workspace-page .chat-runtime-engine {
    padding-left: 4px;
  }

  .chat-workspace-page .chat-runtime-engine select {
    max-width: 112px;
  }

  .chat-workspace-page .chat-turn-profile button {
    padding-inline: 7px;
  }

  .nexus-web-chat .empty-inner {
    padding-inline: 6px;
  }
}

@media (orientation: landscape) and (max-height: 560px) {
  .chat-workspace-page .chat-welcome,
  .nexus-web-chat .empty-inner {
    padding-block: 22px;
  }

  .nexus-web-chat .empty-mark-image {
    width: 82px;
  }

  .nexus-web-chat .access-card {
    padding: 20px;
  }

  .nexus-web-chat .access-symbol {
    width: 96px;
    height: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-workspace-page *,
  .nexus-web-chat * {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}