:root {
  --page-canvas: 1280px;
  --page-gutter: clamp(18px, 4vw, 48px);
  --bg: var(--bg-base, #e7f0f7);
  --surface: var(--card, #f8fbff);
  --surface-2: var(--card-soft, #f2f7fb);
  --surface-3: var(--ghost-bg, #edf4fb);
  --ink: var(--text, #14294b);
  --muted-text: var(--muted, #4f6178);
  --line: var(--card-border, rgba(145, 169, 194, 0.55));
  --line-strong: var(--input-border, var(--btn-border, #9eb7d0));
  --blue: var(--pill-text, #0e5b91);
  --green: var(--success-text, #3d986f);
  --red: var(--danger-text, #c94252);
  --shadow: var(--card-shadow, 0 16px 34px rgba(49, 73, 99, 0.12));
  --brand-wordmark: var(--text, #14294b);
  --brand-service-text: var(--text, #14294b);
  --brand-divider: var(--card-border, rgba(145, 169, 194, 0.55));
  --control-bg-readable: var(--ghost-bg, var(--surface-3));
  --control-text-readable: var(--ghost-text, var(--ink));
  --control-border-readable: var(--ghost-border, var(--line-strong));
  --primary-bg: linear-gradient(180deg, var(--btn-bg-a, #315a8b), var(--btn-bg-b, #284d78));
  --primary-text: var(--btn-text, #fff);
  --primary-border: var(--btn-border, #315a8b);
  font-family: var(--font-ui, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, var(--bg-radial-a, transparent), transparent 34rem),
    radial-gradient(circle at 85% 0%, var(--bg-radial-b, transparent), transparent 36rem),
    linear-gradient(135deg, var(--bg-base, #f9fcff), var(--bg-alt, #eff7fc) 48%, var(--bg-soft, #e0edf6));
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--blue);
}

h1,
h2,
p {
  margin: 0;
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  backdrop-filter: blur(12px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(100%, calc(var(--page-canvas) + var(--page-gutter) + var(--page-gutter)));
  margin: 0 auto;
  padding: 22px var(--page-gutter) 18px;
}

.topbar-brand,
.topbar-actions,
.panel-head,
.board-head,
.run-strip,
.view-tabs {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-brand {
  min-width: 0;
  flex: 1 1 auto;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  color: var(--ink);
  text-decoration: none;
}

.brand-wordmark-wrap {
  position: relative;
  display: block;
  width: clamp(178px, 18vw, 260px);
  height: 52px;
  flex: 0 0 clamp(178px, 18vw, 260px);
}

.brand-wordmark {
  position: absolute;
  inset: 50% 0 auto;
  display: block;
  width: 100%;
  height: auto;
  transform: translateY(-50%);
}

.brand-wordmark-dark {
  display: none;
}

:root[data-theme="k3-light"] .brand-wordmark-light,
:root[data-theme="k3-kitt"] .brand-wordmark-light,
:root[data-theme="k3-kitt2"] .brand-wordmark-light,
:root[data-theme="pipeline-platinum"] .brand-wordmark-light {
  display: none;
}

:root[data-theme="k3-light"] .brand-wordmark-dark,
:root[data-theme="k3-kitt"] .brand-wordmark-dark,
:root[data-theme="k3-kitt2"] .brand-wordmark-dark,
:root[data-theme="pipeline-platinum"] .brand-wordmark-dark {
  display: block;
}

.brand-divider {
  width: 1px;
  height: 36px;
  flex: 0 0 1px;
  background: var(--brand-divider);
}

.brand-service-label {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.brand-service-title {
  display: block;
  color: var(--brand-service-text);
  font-size: clamp(1.25rem, 2.3vw, 1.75rem);
  font-weight: 800;
  line-height: 1.08;
  white-space: nowrap;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--muted-text);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1 {
  color: var(--brand-wordmark);
  font-size: clamp(1.55rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.05;
}

h2 {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
}

.topbar-actions {
  justify-content: flex-end;
  flex-wrap: wrap;
}

.topbar-link,
.icon-button,
.nav-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--control-bg-readable);
  color: var(--control-text-readable);
  font-size: 0.8rem;
  font-weight: 850;
  line-height: 1.1;
  text-decoration: none;
  white-space: nowrap;
}

.icon-button.primary {
  border-color: var(--primary-border);
  color: var(--primary-text);
  background: var(--primary-bg);
}

.icon-button.subtle {
  color: var(--control-text-readable);
  background: var(--control-bg-readable);
}

.icon-button.danger,
.session-delete {
  border-color: var(--danger-border, #c94252);
  color: var(--danger-text, #8b1b2a);
  background: var(--danger-bg, #fff2f4);
}

.theme-control {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted-text);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.theme-control select {
  min-height: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  padding: 5px 8px;
  color: var(--input-text, var(--ink));
  background: var(--input-bg, var(--surface-3));
}

.workspace {
  width: min(100%, calc(var(--page-canvas) + var(--page-gutter) + var(--page-gutter)));
  margin: 0 auto;
  padding: 20px var(--page-gutter) 44px;
}

.view-tabs {
  align-items: flex-end;
  gap: 6px;
  margin: -5px 0 12px;
  padding-inline: 2px;
  border-bottom: 1px solid var(--line-strong);
}

.nav-tab {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.nav-tab.active {
  color: #fff;
  background: #315a8b;
}

.tab-view {
  display: none;
}

.tab-view.active {
  display: block;
}

.run-strip {
  flex-wrap: wrap;
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.board-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.execution-board,
.prose,
.help-nav {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.board-head,
.panel-head {
  justify-content: space-between;
  margin-bottom: 12px;
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.field.compact {
  width: min(220px, 100%);
  margin-bottom: 0;
}

.field span,
.toggle span {
  color: var(--muted-text);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--input-text, var(--ink));
  background: var(--input-bg, var(--surface-2));
  outline: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--input-placeholder, var(--muted-text));
}

textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.5;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--focus, var(--line-strong));
  box-shadow: 0 0 0 2px var(--focus-shadow, rgba(49, 90, 139, 0.22));
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  color: var(--ink);
  background: var(--surface-3);
  font-size: 0.78rem;
  font-weight: 850;
}

pre {
  min-height: 180px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0;
  padding: 12px;
  color: var(--ink);
  background: var(--surface-2);
  line-height: 1.45;
}

.prose {
  line-height: 1.6;
}

.help-layout {
  display: grid;
  grid-template-columns: minmax(180px, 250px) minmax(0, 1fr);
  gap: 14px;
}

.help-nav {
  position: sticky;
  top: 14px;
  align-self: start;
  display: grid;
  gap: 7px;
}

.help-nav a {
  display: block;
  border-radius: 7px;
  padding: 7px 9px;
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 750;
  text-decoration: none;
}

.help-nav a:hover,
.help-nav a:focus {
  background: var(--surface-3);
  outline: none;
}

.prose h1,
.prose h2,
.prose h3 {
  margin: 0.8rem 0 0.4rem;
}

.prose p {
  margin: 0.45rem 0;
}

.prose ul {
  margin: 0.5rem 0 0.75rem;
  padding-left: 1.2rem;
}

.prose li {
  margin: 0.25rem 0;
}

.help-shell {
  display: grid;
  gap: 14px;
}

.help-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  color: var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.help-top h1 {
  margin: 4px 0 6px;
  color: var(--ink);
  font-size: 1.75rem;
  line-height: 1.1;
}

.help-top p,
.help-updated {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--muted-text);
  font-size: 0.8rem;
}

.help-updated {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--surface-3);
}

.help-toc {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 6px;
  align-self: start;
  max-height: calc(100vh - 140px);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.help-toc strong {
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 0.82rem;
}

.help-toc a,
.help-toc span {
  border-radius: 8px;
  padding: 7px 8px;
  color: var(--muted-text);
  font-size: 0.78rem;
  line-height: 1.3;
  text-decoration: none;
}

.help-toc a:hover,
.help-toc a:focus {
  color: var(--ink);
  background: var(--surface-3);
  outline: none;
}

.help-toc .level-2 {
  padding-left: 18px;
}

.help-toc .level-3 {
  padding-left: 30px;
}

.help-document {
  min-width: 0;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  color: var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow);
  line-height: 1.65;
}

.help-document h1,
.help-document h2,
.help-document h3,
.help-document h4,
.help-document h5,
.help-document h6 {
  margin: 1.35em 0 0.55em;
  color: var(--ink);
  letter-spacing: 0;
  line-height: 1.18;
  scroll-margin-top: 24px;
}

.help-document h1:first-child {
  margin-top: 0;
}

.help-document h1 {
  font-size: 1.9rem;
}

.help-document h2 {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  font-size: 1.38rem;
}

.help-document h3 {
  font-size: 1.06rem;
}

.help-document p,
.help-document li,
.help-document blockquote {
  color: var(--muted-text);
  font-size: 0.9rem;
}

.help-document a {
  color: var(--blue);
  font-weight: 800;
}

.help-document ul,
.help-document ol {
  margin: 0.5rem 0 0.8rem;
  padding-left: 1.3rem;
}

.help-document li {
  margin: 0.25rem 0;
}

.help-document code {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 5px;
  color: var(--ink);
  background: var(--surface-2);
  font-size: 0.92em;
}

.help-document pre {
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--surface-2);
}

.help-document pre code {
  display: block;
  border: 0;
  padding: 0;
  background: transparent;
}

.help-document blockquote {
  border-left: 3px solid var(--primary-border);
  margin: 14px 0;
  padding: 8px 14px;
}

.help-table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.help-table {
  min-width: 100%;
  border-collapse: collapse;
}

.help-table th,
.help-table td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  color: var(--muted-text);
  font-size: 0.82rem;
  vertical-align: top;
}

.help-table th {
  color: var(--ink);
  background: var(--surface-3);
}

.help-image {
  margin: 16px 0;
}

.help-image img {
  display: block;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.help-image figcaption {
  margin-top: 6px;
  color: var(--muted-text);
  font-size: 0.76rem;
}

.help-document .mermaid {
  overflow: auto;
  border: 1px solid rgba(91, 149, 246, 0.24);
  border-radius: 8px;
  margin: 16px 0;
  padding: 16px;
  color: #1f2937;
  background: #fff;
  text-align: center;
}

.help-document .mermaid svg {
  max-width: 100%;
  height: auto;
}

.help-document .mermaid-render-error,
.help-document .mermaid-unavailable {
  text-align: left;
  white-space: pre-wrap;
}

.graphql-shell {
  display: grid;
  gap: 14px;
}

.graphql-samples,
.graphql-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.graphql-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 14px;
  align-items: stretch;
}

.graphql-editor,
.graphql-result {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.graphql-editor textarea {
  min-height: 220px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.84rem;
}

.graphql-editor .field + .field textarea {
  min-height: 130px;
}

.graphql-result pre {
  min-height: 470px;
  font-size: 0.84rem;
}

@media (max-width: 760px) {
  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-actions,
  .run-strip {
    width: 100%;
  }

  .field.compact {
    width: 100%;
  }

  .help-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .help-nav,
  .help-toc {
    position: static;
    max-height: none;
  }

  .help-top,
  .graphql-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .help-top {
    display: grid;
  }

  .help-document {
    padding: 16px;
  }
}

.chip.warning {
  border-color: var(--warn-border, #b67a20);
  color: var(--warn-text, #4d2d00);
  background: var(--warn-bg, #fff3d6);
}

.chat-workspace {
  display: grid;
  grid-template-columns: minmax(190px, 260px) minmax(0, 1fr);
  gap: 14px;
  min-height: calc(100vh - 100px);
}

.chat-sidebar,
.chat-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.chat-sidebar {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  align-self: stretch;
  gap: 12px;
  padding: 12px;
}

.session-list {
  display: grid;
  align-content: start;
  gap: 7px;
  overflow: auto;
  min-height: 0;
}

.session-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px;
  align-items: stretch;
}

.session-item {
  display: grid;
  gap: 3px;
  width: 100%;
  min-height: 36px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 8px 10px;
  color: var(--ink);
  background: transparent;
  font-size: 0.88rem;
  font-weight: 750;
  line-height: 1.25;
  text-align: left;
}

.session-title,
.session-meta {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-meta {
  color: var(--muted-text);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.session-item:hover,
.session-item:focus,
.session-row.active .session-item {
  border-color: var(--line-strong);
  background: var(--surface-3);
  outline: none;
}

.session-delete {
  min-width: 58px;
  min-height: 36px;
  border: 1px solid var(--danger-border, #c94252);
  border-radius: 7px;
  padding: 6px 8px;
  font-size: 0.72rem;
  font-weight: 850;
  line-height: 1;
}

.session-delete:hover,
.session-delete:focus {
  box-shadow: 0 0 0 2px var(--focus-shadow, rgba(201, 66, 82, 0.2));
  outline: none;
}

.session-delete:disabled {
  cursor: wait;
  opacity: 0.65;
}

.session-empty {
  color: var(--muted-text);
  font-size: 0.86rem;
  font-weight: 700;
}

.chat-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-height: calc(100vh - 144px);
}

.chat-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 14px;
}

.chat-panel-head h2 {
  max-width: min(68vw, 780px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-complexity {
  margin-top: 6px;
  color: var(--muted-text);
  font-size: 0.78rem;
  font-weight: 750;
}

.chat-panel-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.message-stream {
  overflow: auto;
  min-height: 360px;
  padding: 18px clamp(12px, 2.5vw, 28px);
  background: color-mix(in srgb, var(--surface-2) 64%, var(--surface));
}

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

.chat-empty-state h2 {
  color: var(--ink);
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.chat-empty-state p {
  max-width: 34rem;
  line-height: 1.5;
}

.suggestion-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: 8px;
  width: min(100%, 430px);
  margin-top: 14px;
}

.suggestion-button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--control-text-readable);
  background: var(--control-bg-readable);
  font-size: 0.86rem;
  font-weight: 800;
}

.message-row {
  display: flex;
  margin: 0 auto 14px;
  width: min(100%, 860px);
}

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

.message-row.assistant {
  justify-content: flex-start;
}

.message-bubble {
  display: grid;
  gap: 8px;
  max-width: min(74ch, 88%);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  background: var(--surface);
  box-shadow: 0 8px 20px rgba(49, 73, 99, 0.08);
}

.message-row.user .message-bubble {
  border-color: var(--primary-border);
  color: var(--primary-text);
  background: var(--primary-bg);
}

.message-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted-text);
  font-size: 0.74rem;
  font-weight: 850;
  text-transform: uppercase;
}

.message-meta time {
  margin-left: auto;
}

.message-row.user .message-meta {
  color: color-mix(in srgb, var(--primary-text) 82%, transparent);
}

.message-stats {
  color: inherit;
  opacity: 0.88;
}

.message-content {
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  line-height: 1.55;
}

.message-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.message-action {
  justify-self: start;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 8px;
  color: var(--ink);
  background: var(--surface-3);
  font-size: 0.75rem;
  font-weight: 800;
}

.thinking-bubble {
  grid-auto-flow: column;
  align-items: center;
  justify-content: start;
}

.thinking-label {
  color: var(--muted-text);
  font-size: 0.86rem;
  font-weight: 800;
}

.thinking-dots {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.thinking-dots i {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--muted-text);
  animation: k3-thinking 1s infinite ease-in-out;
}

.thinking-dots i:nth-child(2) {
  animation-delay: 0.15s;
}

.thinking-dots i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes k3-thinking {
  0%,
  80%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }

  40% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

.composer {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding: 12px 14px 14px;
  background: var(--surface);
}

.composer-controls,
.composer-row,
.range-field {
  display: flex;
  align-items: center;
  gap: 10px;
}

.composer-controls {
  flex-wrap: wrap;
  justify-content: space-between;
}

.range-field,
.complexity-pill {
  color: var(--muted-text);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.complexity-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  background: var(--surface-3);
}

.range-field input {
  width: min(180px, 38vw);
  min-height: 30px;
  padding: 0;
}

.range-field output {
  min-width: 3.2em;
  color: var(--ink);
}

.composer-row {
  align-items: flex-end;
}

.composer textarea {
  min-height: 48px;
  max-height: 180px;
  margin: 0;
  resize: none;
}

.composer .icon-button {
  min-width: 78px;
  min-height: 48px;
}

.composer .icon-button:disabled {
  cursor: wait;
  opacity: 0.68;
}

@media (max-width: 880px) {
  .chat-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .chat-sidebar {
    align-self: start;
  }

  .session-list {
    grid-auto-flow: column;
    grid-auto-columns: minmax(150px, 220px);
    overflow-x: auto;
  }

  .chat-panel {
    min-height: calc(100vh - 238px);
  }
}

@media (max-width: 600px) {
  .brand-lockup {
    gap: 10px;
  }

  .brand-wordmark-wrap {
    width: 142px;
    height: 40px;
    flex-basis: 142px;
  }

  .brand-divider {
    height: 30px;
  }

  .brand-service-title {
    font-size: 1.05rem;
    white-space: normal;
  }

  .auth-brand {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .auth-brand .brand-wordmark-wrap {
    width: min(240px, 100%);
    height: 48px;
    flex-basis: auto;
  }

  .auth-brand .brand-divider {
    display: none;
  }

  .chat-panel-head,
  .composer-row {
    align-items: stretch;
    flex-direction: column;
  }

  .composer-controls {
    align-items: flex-start;
    flex-direction: column;
  }

  .range-field,
  .complexity-pill {
    width: 100%;
  }

  .range-field input {
    width: 100%;
  }

  .suggestion-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .message-bubble {
    max-width: 96%;
  }
}

body.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background:
    radial-gradient(circle at 18% 14%, var(--auth-glow-a, transparent), transparent 28rem),
    radial-gradient(circle at 82% 4%, var(--auth-glow-b, transparent), transparent 30rem),
    linear-gradient(135deg, var(--auth-bg-a, var(--bg-base)), var(--auth-bg-b, var(--bg-alt)) 50%, var(--auth-bg-c, var(--bg-soft)));
}

.auth-shell {
  width: min(100%, 460px);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: var(--auth-card-bg, var(--surface));
  box-shadow: var(--shadow);
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.auth-brand .brand-wordmark-wrap {
  width: min(248px, 56vw);
  height: 54px;
  flex-basis: min(248px, 56vw);
}

.auth-brand .brand-service-title {
  font-size: 1.25rem;
  line-height: 1.2;
}

.auth-note {
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 14px;
  padding: 10px 12px;
  color: var(--muted-text);
  background: var(--surface-2);
  font-size: 0.9rem;
  line-height: 1.5;
}

.auth-error {
  border-color: var(--danger-border, #c94252);
  color: var(--danger-text, #8b1b2a);
  background: var(--danger-bg, #fff2f4);
}

.auth-primary {
  width: 100%;
  margin-bottom: 14px;
  color: var(--primary-text);
  background: var(--primary-bg);
  border-color: var(--primary-border);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 12px;
  color: var(--muted-text);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.field-label {
  display: block;
  margin: 12px 0 6px;
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 750;
}

.auth-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.auth-input {
  width: 100%;
  min-height: 42px;
}

.auth-btn,
.auth-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 9px 13px;
  color: var(--control-text-readable);
  background: var(--control-bg-readable);
  font-size: 0.9rem;
  font-weight: 850;
  text-decoration: none;
}

.auth-actions {
  display: flex;
  justify-content: flex-start;
  gap: 10px;
  margin-top: 14px;
}

.auth-footer {
  margin-top: 18px;
  color: var(--muted-text);
  font-size: 0.78rem;
  text-align: center;
}