/* Quiet UI refinement: typography, controls, icons, and density only. */

:root {
  --ui-type-page: 24px;
  --ui-type-section: 18px;
  --ui-type-body: 14px;
  --ui-type-label: 13px;
  --ui-type-meta: 12px;
  --ui-control-radius: 8px;
  --ui-control-height: 38px;
  --ui-icon-size: 16px;
}

.ui-action-icon {
  width: var(--ui-icon-size);
  height: var(--ui-icon-size);
  flex: 0 0 auto;
  pointer-events: none;
}

button[data-ui-enhanced]:not([data-ui-icon-only]),
a[data-ui-enhanced]:not([data-ui-icon-only]) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

button[data-ui-icon-only] {
  width: var(--ui-control-height);
  min-width: var(--ui-control-height);
  height: var(--ui-control-height);
  min-height: var(--ui-control-height);
  padding: 0;
}

.portal-payment-close[data-ui-icon-only] {
  border: 1px solid currentColor;
}

.portal-payment-close[data-ui-icon-only] .ui-action-icon {
  width: 18px;
  height: 18px;
}

button[data-ui-enhanced],
a[data-ui-enhanced],
input,
select,
textarea {
  transition: border-color 140ms ease, background-color 140ms ease, color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.primary-button[data-ui-enhanced]:hover:not(:disabled),
.creator-primary[data-ui-enhanced]:hover:not(:disabled),
.submit-button[data-ui-enhanced]:hover:not(:disabled) {
  transform: translateY(-1px);
}

button[data-ui-enhanced]:active:not(:disabled),
a[data-ui-enhanced]:active {
  transform: translateY(0);
}

/* Admin: compact, precise, and calm. */
body.mode-admin {
  font-size: var(--ui-type-body);
  line-height: 1.5;
}

body.mode-admin .app-shell {
  grid-template-columns: 220px minmax(0, 1fr);
}

body.mode-admin.sidebar-collapsed .app-shell {
  grid-template-columns: 60px minmax(0, 1fr);
}

body.mode-admin .sidebar {
  gap: 12px;
  padding: 14px 10px;
}

body.mode-admin .brand-block {
  padding: 0 5px;
}

body.mode-admin .nav-list {
  gap: 6px;
}

body.mode-admin .nav-group {
  gap: 1px;
}

body.mode-admin .nav-item {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 9px;
  border-radius: 7px;
  font-size: var(--ui-type-label);
}

body.mode-admin .nav-item::before {
  display: none;
}

body.mode-admin .nav-item .ui-action-icon {
  width: 15px;
  height: 15px;
  opacity: 0.86;
}

body.mode-admin.sidebar-collapsed .nav-item {
  grid-template-columns: 1fr;
  justify-items: center;
  padding: 0;
}

body.mode-admin.sidebar-collapsed .nav-item .ui-action-icon {
  display: block;
}

body.mode-admin .topbar {
  align-items: center;
  padding: 12px 18px;
}

body.mode-admin .topbar h1 {
  font-size: var(--ui-type-page);
  line-height: 1.25;
}

body.mode-admin .topbar p,
body.mode-admin .section-heading p,
body.mode-admin .field-help,
body.mode-admin .muted {
  font-size: var(--ui-type-meta);
}

body.mode-admin .section-heading h2 {
  font-size: var(--ui-type-section);
  line-height: 1.35;
}

body.mode-admin .section-heading h3,
body.mode-admin .panel h3 {
  font-size: var(--ui-type-body);
}

body.mode-admin .view {
  padding: 12px;
}

body.mode-admin .panel {
  padding: 14px;
}

body.mode-admin .section-heading {
  margin-bottom: 12px;
}

body.mode-admin :is(.primary-button, .secondary-button, .ghost-button, .danger-button, .compact-button) {
  min-height: 36px;
  padding: 0 11px;
  border-radius: var(--ui-control-radius);
  font-size: var(--ui-type-label);
  font-weight: 650;
}

body.mode-admin :is(.icon-button, .sidebar-toggle) {
  width: 34px;
  min-width: 34px;
  height: 34px;
  min-height: 34px;
  border-radius: 7px;
  padding: 0;
}

body.mode-admin :is(input:not([type="checkbox"]):not([type="radio"]), select) {
  min-height: var(--ui-control-height);
  padding: 8px 10px;
  border-radius: var(--ui-control-radius);
  font-size: var(--ui-type-body);
}

body.mode-admin textarea {
  min-height: 84px;
  padding: 10px 11px;
  border-radius: var(--ui-control-radius);
  font-size: var(--ui-type-body);
  line-height: 1.55;
}

body.mode-admin :is(label, .field-label) {
  font-size: var(--ui-type-label);
}

body.mode-admin .form-grid,
body.mode-admin .list-group,
body.mode-admin .flow-list,
body.mode-admin .object-list,
body.mode-admin .checklist {
  gap: 7px;
}

/* User portal: the form is primary, with a quieter supporting pane. */
html.lingling-user-theme body.mode-user,
body.zhuqing-user-interface {
  font-size: var(--ui-type-body);
  line-height: 1.55;
}

html.lingling-user-theme body.mode-user .creator-layout {
  grid-template-columns: minmax(440px, 1.12fr) minmax(360px, 0.88fr);
}

html.lingling-user-theme body.mode-user .creator-compose {
  gap: 20px;
  padding: 30px 32px;
}

html.lingling-user-theme body.mode-user .creator-preview {
  padding: 24px 26px;
}

html.lingling-user-theme body.mode-user .creator-heading h2 {
  max-width: 420px;
  font-size: 32px;
  line-height: 1.2;
}

html.lingling-user-theme body.mode-user .creator-form {
  gap: 16px;
}

html.lingling-user-theme body.mode-user .creator-form label,
body.zhuqing-user-interface label {
  font-size: var(--ui-type-label);
}

html.lingling-user-theme body.mode-user :is(input:not([type="checkbox"]):not([type="radio"]), select),
body.zhuqing-user-interface :is(input:not([type="checkbox"]):not([type="radio"]), select) {
  min-height: 42px;
  border-radius: var(--ui-control-radius);
  font-size: var(--ui-type-body);
}

html.lingling-user-theme body.mode-user textarea,
body.zhuqing-user-interface textarea {
  border-radius: var(--ui-control-radius);
  font-size: var(--ui-type-body);
  line-height: 1.6;
}

html.lingling-user-theme body.mode-user :is(.primary-button, .secondary-button, .ghost-button),
body.zhuqing-user-interface :is(.submit-button, .secondary-button, .new-conversation-button) {
  min-height: 40px;
  padding: 0 14px;
  border-radius: var(--ui-control-radius);
  font-size: var(--ui-type-body);
  font-weight: 650;
}

html.lingling-user-theme body.mode-user .creator-primary {
  min-height: 46px;
  border-radius: var(--ui-control-radius);
  font-size: var(--ui-type-body);
  font-weight: 700;
}

html.lingling-user-theme body.mode-user .creator-submit-row {
  grid-template-columns: minmax(180px, 1fr) auto;
}

html.lingling-user-theme body.mode-user .creator-submit-row .secondary-button {
  width: auto;
}

html.lingling-user-theme body.mode-user .portal-tabs {
  gap: 8px;
}

html.lingling-user-theme body.mode-user .portal-tabs button {
  gap: 6px;
  min-height: 42px;
  padding: 0 8px;
  font-size: var(--ui-type-label);
}

html.lingling-user-theme body.mode-user .creator-preview-head strong {
  font-size: var(--ui-type-section);
}

html.lingling-user-theme body.mode-user .creator-mockup {
  grid-template-columns: minmax(0, 1fr);
}

/* Free creation workspace follows the same control rhythm. */
body.zhuqing-user-interface .studio-app {
  --sidebar-width: 240px;
}

body.zhuqing-user-interface .conversation-sidebar {
  gap: 11px;
  padding: 14px 10px 10px;
}

body.zhuqing-user-interface .studio-header {
  min-height: 58px;
}

body.zhuqing-user-interface .studio-header h1 {
  font-size: var(--ui-type-section);
}

body.zhuqing-user-interface .studio-header > .user-shell-workspace-switcher {
  display: inline-flex;
  width: max-content;
  min-height: 32px;
  gap: 8px;
  align-items: center;
  justify-self: start;
}

body.zhuqing-user-interface .studio-header .user-shell-workspace-label {
  font-size: var(--ui-type-meta);
}

body.zhuqing-user-interface .studio-header .user-shell-workspace-trigger {
  display: inline-flex;
  width: auto;
  min-height: 32px;
  gap: 7px;
  padding: 3px 6px 3px 4px;
  border: 0;
}

body.zhuqing-user-interface .studio-header .user-shell-workspace-trigger-icon {
  width: 26px;
  height: 26px;
}

body.zhuqing-user-interface .studio-header .user-shell-workspace-trigger-copy {
  display: block;
}

body.zhuqing-user-interface .studio-header .user-shell-workspace-trigger-copy small,
body.zhuqing-user-interface .studio-header .user-shell-workspace-trigger-action {
  display: none;
}

body.zhuqing-user-interface .studio-header .user-shell-workspace-menu {
  top: calc(100% + 8px);
  left: 0;
}

@media (min-width: 761px) {
  body.zhuqing-user-interface .studio-header {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: 58px;
  }

  body.zhuqing-user-interface .studio-header > .user-shell-workspace-switcher {
    grid-column: 1;
    grid-row: 1;
  }

  body.zhuqing-user-interface .studio-header > .workspace-actions {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }
}

body.zhuqing-user-interface .composer-region {
  padding: 10px 16px 14px;
}

body.zhuqing-user-interface .composer,
body.zhuqing-user-interface .reference-tray {
  width: min(820px, 100%);
}

body.zhuqing-user-interface .composer textarea,
body.zhuqing-user-interface .composer-prompt-highlight {
  font-size: var(--ui-type-body);
}

body.zhuqing-user-interface :is(.tool-button, .prompt-assist-button, .style-picker-button, .image-options select) {
  min-height: 34px;
  height: 34px;
  border-radius: 7px;
  font-size: var(--ui-type-meta);
}

body.zhuqing-user-interface .composer-submit {
  width: 36px;
  min-width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
}

body.zhuqing-user-interface :is(.icon-button, .picker-close, .mention-picker-close, .lightbox-close) {
  width: 36px;
  min-width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
  border-radius: 7px;
}

@media (max-width: 1180px) {
  body.mode-admin .app-shell {
    grid-template-columns: 60px minmax(0, 1fr);
  }

  body.mode-admin .nav-item {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 0;
  }

  body.mode-admin .nav-item .ui-action-icon {
    display: block;
  }

  html.lingling-user-theme body.mode-user .creator-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  html.lingling-user-theme body.mode-user .creator-mockup {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 820px) {
  html.lingling-user-theme body.mode-user .creator-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  html.lingling-user-theme body.mode-user .creator-compose,
  html.lingling-user-theme body.mode-user .creator-preview {
    padding: 22px 20px;
  }
}

@media (max-width: 520px) {
  html.lingling-user-theme body.mode-user .creator-compose,
  html.lingling-user-theme body.mode-user .creator-preview {
    padding: 18px 16px;
  }

  html.lingling-user-theme body.mode-user .creator-heading h2 {
    font-size: 24px;
  }

  html.lingling-user-theme body.mode-user .creator-submit-row {
    grid-template-columns: minmax(0, 1fr);
  }

  html.lingling-user-theme body.mode-user .creator-submit-row .secondary-button {
    width: 100%;
  }

  html.lingling-user-theme body.mode-user .portal-tabs button {
    gap: 4px;
    padding: 0 2px;
    font-size: 12px;
    white-space: nowrap;
  }

  html.lingling-user-theme body.mode-user .portal-tabs .ui-action-icon {
    width: 14px;
    height: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  button[data-ui-enhanced],
  a[data-ui-enhanced],
  input,
  select,
  textarea {
    transition: none;
  }
}