/* Screen-fitting workspace controls: editor tabs, panes and mobile surface switch. */
.editor-navigation {
  flex: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 5px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  background: #1b1114;
}
.editor-navigation > button, .inspector-subnav > button {
  min-width: 0;
  min-height: 36px;
  padding: 7px 4px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: #c9b9bd;
  font: 650 12px/1.2 "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  text-align: center;
  cursor: pointer;
}
.editor-navigation > button:hover, .inspector-subnav > button:hover {
  color: #fff;
  background: #37282c;
}
.editor-navigation > button[aria-pressed="true"], .inspector-subnav > button[aria-pressed="true"] {
  color: #fff;
  background: #5a2528;
  border-color: #805056;
  box-shadow: inset 0 -2px #db6460;
}
.editor-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
  overflow: hidden;
}
.editor-content .history-actions {
  flex: none;
  margin: 0;
  justify-content: flex-end;
}
.editor-content .history-actions .button {
  min-height: 28px;
  padding: 4px 9px;
  font-size: 11px;
}
.editor-mode-pane {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}
.editor-mode-pane[hidden], .frame-editor-pane[hidden],
[data-artwork-page][hidden] { display: none !important; }
.inspector-subnav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  flex: none;
  gap: 3px;
  padding: 3px;
  border: 1px solid #47353a;
  border-radius: 8px;
  background: #180e11;
}
.inspector-subnav > button { font-size: 11px; min-height: 33px; padding-inline: 3px; }
.editor-hint {
  margin: 6px 0 0;
  font-size: 11px;
  color: #cab9bd;
  line-height: 1.4;
}
.editor-mode-pane .asset-list { min-width: 0; border-top: 0; }
.editor-mode-pane .asset-row { min-height: 52px; }
.editor-mode-pane .frame-tools {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 0;
  min-height: 0;
}
.editor-mode-pane .frame-tools h2 { margin: 0; }
.editor-mode-pane .frame-list {
  flex: none;
  max-width: 100%;
  gap: 4px;
}
.frame-editor {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  min-height: 0;
  gap: 8px;
  overflow: hidden;
  margin-top: 0;
}
.frame-editor-pane {
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
}
.frame-editor-pane .subsection { margin-top: 0; }
.frame-editor-pane .field-row { flex-wrap: nowrap; }
.frame-editor-pane .field-row > .field { flex: 1 1 0; }
.frame-editor-pane details[open] { display: block; }
.frame-editor-pane .frame-size-tools[open] { border-color: #86535a; }
.frame-editor-pane .frame-size-tools > p { font-size: 11px; line-height: 1.35; }
.editor-mode-pane .launch-tools { margin: 0; }
.editor-mode-pane .launch-tools .inline-actions { align-items: flex-start; }
.editor-mode-pane .more-tools {
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
  margin: 0;
  padding-top: 0;
  border: 0;
}
.editor-mode-pane .more-tools > summary { display: none; }
.editor-mode-pane .more-tools .inline-actions { flex-wrap: wrap; }
.mobile-surface-switch { display: none; }
@media (max-height: 760px) {
  .editor-content { gap: 5px; }
  .editor-navigation { padding-block: 5px; }
  .editor-navigation > button { min-height: 30px; }
  .editor-mode-pane .asset-row { min-height: 43px; }
  .frame-editor-pane .frame-size-tools > p { display: none; }
  .editor-mode-pane .launch-tools > p.asset-spec { max-height: 65px; overflow: hidden; }
}
@media (max-width: 800px) {
  .mobile-surface-switch {
    display: grid;
    grid-template-columns: 1fr 1fr;
    flex: none;
    width: 100%;
    margin-bottom: 6px;
    padding: 3px;
    border: 1px solid #433337;
    border-radius: 9px;
    background: #1b1114;
  }
  .mobile-surface-switch > button {
    min-width: 0;
    min-height: 36px;
    padding: 5px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: transparent;
    color: #cebcc0;
    font-size: 12px;
    font-weight: 700;
  }
  .mobile-surface-switch > button[aria-selected="true"] {
    color: #fff;
    border-color: #67444a;
    background: #5a2528;
    box-shadow: inset 0 -2px #cf625c;
  }
  .work-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    min-height: 0;
  }
  .work-grid[data-mobile-surface="preview"] .inspector,
  .work-grid[data-mobile-surface="edit"] .preview-panel { display: none; }
  .work-grid .panel { min-height: 0; }
  .preview-mat .screen { width: min(100%, 176.47cqh, 810px); }
  .inspector .style-launcher { flex: none; }
  .editor-content { flex: 1 1 0; min-height: 0; }
  .editor-navigation { padding: 7px; }
  .editor-mode-pane .launch-tools > p.asset-spec { max-height: none; }
}
@media (max-width: 400px) {
  .editor-navigation { gap: 2px; padding-inline: 6px; }
  .editor-navigation > button { font-size: 11px; }
  .inspector-subnav > button { font-size: 10px; }
  .editor-mode-pane .launch-tools > p.asset-spec { display: none; }
}
@media (pointer: coarse) {
  .editor-navigation > button, .inspector-subnav > button,
  .mobile-surface-switch > button { min-height: 44px; }
}

/* Advanced editing is paged, not scrollable: tabs keep the form's values intact. */
#dialog:has(#advanced-variant-form) { width: min(700px, calc(100% - 16px)); }
#dialog:has(#advanced-variant-form) .dialog-content {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-height: 0;
  overflow: hidden;
  padding: 9px 12px;
}
#dialog:has(#advanced-variant-form) .dialog-content > p { flex: none; margin: 0; font-size: 11px; }
.variant-version-chooser { flex: none; }
.variant-version-chooser .field { margin: 0; }
.variant-pager, .manual-pager {
  flex: none;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 6px;
  align-items: end;
  min-width: 0;
}
.variant-pager > .button, .manual-pager > .button { min-height: 34px; }
.variant-pager > .field, .manual-pager > .field { min-width: 0; margin: 0; }
.variant-pager .field select, .manual-pager .field select { min-height: 34px; }
#advanced-variant-form { display: flex; flex: 1 1 0; flex-direction: column; min-height: 0; min-width: 0; }
#advanced-variant-form > p { flex: none; margin: 2px 0; font-size: 11px; }
.variant-page { flex: 1 1 0; min-height: 0; min-width: 0; overflow: hidden; }
.variant-page[hidden], .tool-page[hidden], [data-gate-panel][hidden] { display: none !important; }
.variant-page .field-row { flex-wrap: nowrap; gap: 7px; }
.variant-page .field-row > .field { flex: 1 1 0; min-width: 0; }
.variant-page .field { margin: 4px 0; gap: 3px; font-size: 11px; }
.variant-page .field input, .variant-page .field select, .variant-page .field textarea { min-height: 32px; padding: 5px 7px; }
.variant-page p { margin: 4px 0; font-size: 11px; line-height: 1.35; }
.variant-page details { margin: 0; padding: 0; border: 0; }
.variant-page details > summary { display: none; }
.variant-form-actions, .variant-dialog-actions { flex: none; margin: 5px 0 0; }
.variant-form-actions > .button, .variant-dialog-actions > .button { min-height: 34px; }
#dialog:has(#advanced-variant-form) .variant-page:has([data-variant-action="match"]) { flex: 1 1 auto; }
#dialog:has(#advanced-variant-form):has([data-variant-panel="preview"]:not([hidden])) #advanced-variant-form,
#dialog:has(#advanced-variant-form):has([data-variant-panel="versions"]:not([hidden])) #advanced-variant-form { display: none; }

/* Full-screen art remains a flat 960:544 capture, without a decorative console. */
#dialog .dialog-content:has(#expanded-screen) { display: flex; flex-direction: column; min-height: 0; }
#dialog .dialog-content:has(#expanded-screen) .preview-mat {
  display: flex;
  flex: 1 1 0;
  justify-content: center;
  align-items: center;
  min-height: 180px;
  height: min(62dvh, 560px);
  max-height: 100%;
  overflow: hidden;
}
#dialog .dialog-content:has(#expanded-screen) #expanded-screen {
  flex: none;
  width: min(100%, 176.47cqh);
  max-width: 100%;
  height: auto;
  aspect-ratio: 960 / 544;
}

/* Compact Start-art positioning and manual gallery controls. */
#dialog:has(#gate-art-form) .dialog-content { overflow: hidden; }
#dialog:has(#gate-art-form) .gate-art-intro { font-size: 11px; margin: 0 0 6px; line-height: 1.4; }
#dialog:has(#gate-art-form) .preview-mat { min-height: 110px; }
.gate-editor-tabs { margin: 2px 0 4px; }
#gate-art-form { margin-top: 5px; min-height: 0; gap: 3px; }
#gate-art-form .field { margin: 4px 0; }
#gate-art-form .field-row { flex-wrap: nowrap; }
#gate-art-form .field-row > .field { flex: 1 1 0; min-width: 0; }
#gate-art-form [data-gate-panel] { min-width: 0; }
#gate-art-form .inline-actions { margin-top: 5px; }
#dialog:has(.manual-pager) .dialog-content { display: flex; flex-direction: column; gap: 5px; }
#dialog:has(.manual-pager) .dialog-content > .export-option { flex: 1 1 0; min-height: 0; margin: 0; padding: 6px; }
#dialog:has(.manual-pager) .dialog-content > .export-option .inline-actions { margin: 0; }
#dialog:has(.manual-pager) .manual-dialog-actions { flex: none; margin: 4px 0; }
#dialog:has(.manual-pager) .manual-intro { flex: none; margin: 0; }
.tool-page { min-width: 0; }
.tool-page .package-info { margin: 0; }
@media (max-height: 760px) {
  #dialog:has(#advanced-variant-form) .dialog-content { padding: 6px 9px; gap: 4px; }
  #dialog:has(#advanced-variant-form) .variant-intro,
  #dialog:has(#advanced-variant-form) #advanced-variant-form > p,
  #dialog:has(#gate-art-form) .gate-art-intro,
  #dialog:has(.manual-pager) .manual-intro { display: none; }
  .variant-page p { display: none; }
  .variant-page .field { margin: 2px 0; }
  #dialog:has(#gate-art-form) .preview-mat { padding: 5px !important; max-height: min(25dvh, 150px); }
}
@media (pointer: coarse) {
  .editor-content .history-actions .button,
  .variant-pager > .button, .manual-pager > .button,
  .variant-form-actions > .button, .variant-dialog-actions > .button { min-height: 44px; }
}

/* Short landscape displays have a shallow content budget. Keep complete
   actions visible rather than introducing scrollable nested panels. */
@media (max-height: 440px) and (orientation: landscape) {
  #dialog[open]:not(:has(#style-picker-grid, #advanced-variant-form, #gate-art-form, #expanded-screen))
    .dialog-content { padding-block: 2px; }
  #dialog[open]:not(:has(#style-picker-grid, #advanced-variant-form, #gate-art-form, #expanded-screen))
    .dialog-content > p { margin-block: 3px; font-size: 12px; line-height: 1.25; }
  #dialog[open]:has(.xml-view) .dialog-content .xml-view {
    min-height: 140px;
    height: 140px;
    resize: none;
  }
  #dialog[open]:has(.xml-view) .dialog-content .inline-actions { margin-top: 3px; }
  /* A single horizontal row leaves room for all eight text-style fields. */
  #dialog[open]:has(#advanced-variant-form) [data-variant-panel="text-style"] details[open] {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 2px 4px;
  }
  #dialog[open]:has(#advanced-variant-form) [data-variant-panel="text-style"] details > .field-row {
    grid-column: span 1;
    gap: 2px;
  }
  #dialog[open]:has(#advanced-variant-form) [data-variant-panel="text-style"] .field {
    font-size: 10px;
    line-height: 1.15;
    gap: 2px;
  }
}
@media (max-height: 440px) and (max-width: 700px) and (orientation: landscape) {
  /* When editing imported versions, the version button takes the free space
     beside the frame tabs instead of falling below the inspector viewport. */
  .inspector .frame-editor:has(> .frame-editor-pane:not([hidden]) > [data-action="advanced-frame"]) {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    grid-template-rows: 44px;
    align-items: stretch;
    gap: 4px;
  }
  .inspector .frame-editor:has(> .frame-editor-pane:not([hidden]) > [data-action="advanced-frame"]) > .inspector-subnav {
    grid-column: 1;
    grid-row: 1;
  }
  .inspector .frame-editor:has(> .frame-editor-pane:not([hidden]) > [data-action="advanced-frame"]) > .frame-editor-pane:not([hidden]) {
    display: grid;
    grid-column: 2;
    grid-row: 1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px;
  }
  .inspector .frame-editor:has(> .frame-editor-pane:not([hidden]) > [data-action="advanced-frame"]) > .frame-editor-pane:not([hidden]) > button {
    min-width: 0;
    min-height: 44px;
    padding: 2px 3px;
    font-size: 10px;
    line-height: 1.12;
    white-space: normal;
  }
  .inspector .frame-editor:has(> .frame-editor-pane:not([hidden]) > [data-action="advanced-frame"]) > .frame-editor-pane:not([hidden]) > button:only-of-type {
    grid-column: 1 / -1;
  }
}

/* Step numbers on the editor tabs make the workflow order obvious. */
.editor-navigation { counter-reset: editor-step; }
.editor-navigation > button::before {
  counter-increment: editor-step;
  content: counter(editor-step);
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  margin-right: 5px;
  border-radius: 50%;
  background: #4d2428;
  color: #ffcac9;
  font-size: 10px;
  font-weight: 700;
  vertical-align: 1px;
}
.editor-navigation > button[aria-pressed="true"]::before { background: var(--accent); color: #fff; }
@media (max-width: 380px) { .editor-navigation > button::before { display: none; } }

/* First-visit welcome guide. */
.welcome-lead { margin-top: 0; color: var(--muted); }
.welcome-steps { counter-reset: welcome-step; list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 10px; }
.welcome-steps li { counter-increment: welcome-step; display: grid; grid-template-columns: 28px 1fr; column-gap: 10px; }
.welcome-steps li::before {
  content: counter(welcome-step);
  grid-row: span 2;
  display: grid; place-items: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 13px;
}
.welcome-steps strong { font-size: 14px; }
.welcome-steps span { color: var(--muted); font-size: 12.5px; line-height: 1.45; }