/* quillflow designer. The preview uses the form's own theme (quillflow.css). */
:root {
  --qfd-font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --qfd-text: #1d1f21;
  --qfd-muted: #5a6168;
  --qfd-line: #d8dce0;
  --qfd-surface: #ffffff;
  --qfd-canvas: #f3f4f6;
  --qfd-accent: #1d70b8;
  --qfd-accent-soft: #e8f1fa;
  --qfd-error: #c2271a;
  --qfd-ok: #00703c;
  --qfd-focus: #ffdd00;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--qfd-font);
  font-size: 15px;
  color: var(--qfd-text);
  background: var(--qfd-canvas);
}

qf-designer {
  display: block;
  height: 100%;
}

qf-designer *,
qf-designer *::before,
qf-designer *::after {
  box-sizing: border-box;
}

.qfd-app {
  display: grid;
  grid-template-columns: var(--qfd-outline-width, 320px) 6px minmax(300px, 1fr) 6px var(--qfd-settings-width, 380px);
  grid-template-rows: auto minmax(0, 1fr) 6px var(--qfd-problems-height, 120px);
  grid-template-areas:
    "toolbar toolbar toolbar toolbar toolbar"
    "outline split-outline preview split-settings settings"
    "split-problems split-problems split-problems split-problems split-problems"
    "problems problems problems problems problems";
  height: 100vh;
}

/* Dividers between the panes: drag them, use the arrow keys, or double-click to reset. */
.qfd-splitter {
  position: relative;
  z-index: 2;
  background: var(--qfd-line);
  touch-action: none;
}

.qfd-splitter--outline {
  grid-area: split-outline;
  cursor: col-resize;
}

.qfd-splitter--settings {
  grid-area: split-settings;
  cursor: col-resize;
}

.qfd-splitter--problems {
  grid-area: split-problems;
  cursor: row-resize;
}

.qfd-splitter:hover,
.qfd-splitter:focus-visible,
.qfd-splitter--active {
  background: var(--qfd-accent);
  outline: none;
}

/* A wider invisible grip than the 6px line. */
.qfd-splitter::after {
  position: absolute;
  inset: 0 -4px;
  content: "";
}

.qfd-splitter--problems::after {
  inset: -4px 0;
}

.qfd-app--resizing {
  user-select: none;
}

/* The preview must not swallow pointer events while a divider is dragged over it. */
.qfd-app--resizing qf-form {
  pointer-events: none;
}

/* ---- toolbar ---------------------------------------------------------------------------- */

.qfd-toolbar {
  grid-area: toolbar;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
  background: #0b0c0c;
  color: #fff;
}

.qfd-brand {
  font-weight: 700;
}

.qfd-doc {
  overflow: hidden;
  color: #c9ced3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qfd-toolbar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-left: auto;
}

.qfd-toolbar button {
  border-color: #6b7177;
  background: #26292c;
  color: #fff;
}

.qfd-toolbar button:hover:not(:disabled) {
  background: #3a3e42;
}

.qfd-toolbar select.qfd-examples {
  width: auto;
  border-color: #6b7177;
  background: #26292c;
  color: #fff;
}

.qfd-separator {
  width: 1px;
  margin: 0 0.25rem;
  background: #6b7177;
}

/* ---- panes ------------------------------------------------------------------------------ */

.qfd-pane {
  min-height: 0;
  overflow: auto;
  padding: 1rem;
  background: var(--qfd-surface);
}

.qfd-outline {
  grid-area: outline;
}

.qfd-preview {
  grid-area: preview;
  padding: 0;
  background: var(--qfd-canvas);
}

.qfd-settings {
  grid-area: settings;
}

.qfd-problems {
  grid-area: problems;
  min-height: 0;
  overflow: auto;
  padding: 0.5rem 1rem;
  background: var(--qfd-surface);
}

.qfd-problems h2 {
  margin: 0.25rem 0;
  font-size: 1rem;
  color: var(--qfd-error);
}

.qfd-problems ul {
  margin: 0;
  padding-left: 1.25rem;
}

.qfd-ok {
  margin: 0.25rem 0;
  font-weight: 600;
  color: var(--qfd-ok);
}

/* ---- controls ----------------------------------------------------------------------------- */

qf-designer button,
qf-designer input,
qf-designer select,
qf-designer textarea {
  font: inherit;
  color: inherit;
}

qf-designer button {
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--qfd-line);
  border-radius: 4px;
  background: var(--qfd-surface);
  cursor: pointer;
}

qf-designer button:hover:not(:disabled) {
  background: var(--qfd-accent-soft);
}

qf-designer button:disabled {
  opacity: 0.45;
  cursor: default;
}

qf-designer input[type="text"],
qf-designer input[type="date"],
qf-designer select,
qf-designer textarea {
  width: 100%;
  padding: 0.35rem 0.5rem;
  border: 1px solid #9aa1a8;
  border-radius: 4px;
  background: #fff;
}

qf-designer :focus-visible {
  outline: 3px solid var(--qfd-focus);
  outline-offset: 1px;
}

.qfd-formula,
.qfd-code,
.qfd-json {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.875rem;
}

.qfd-icon {
  padding: 0.1rem 0.4rem !important;
  border-color: transparent !important;
  background: transparent !important;
  line-height: 1.2;
}

.qfd-icon:hover:not(:disabled) {
  background: var(--qfd-accent-soft) !important;
}

.qfd-link {
  padding: 0 !important;
  border: 0 !important;
  background: none !important;
  color: var(--qfd-accent);
  text-align: left;
  text-decoration: underline;
}

.qfd-danger {
  margin-top: 1.5rem;
  border-color: var(--qfd-error) !important;
  color: var(--qfd-error);
}

.qfd-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.qfd-inline select {
  width: auto;
}

.qfd-check {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0.2rem 0;
}

/* ---- outline ------------------------------------------------------------------------------ */

.qfd-tree {
  margin: 0;
  padding: 0;
  list-style: none;
}

.qfd-tree .qfd-tree {
  margin-left: 0.9rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--qfd-line);
}

.qfd-tree__item--page {
  margin-top: 0.5rem;
}

.qfd-node {
  display: flex;
  align-items: center;
  width: 100%;
  border-radius: 4px;
}

.qfd-node--form {
  gap: 0.5rem;
  padding: 0.4rem 0.5rem !important;
  border: 0 !important;
  text-align: left;
}

.qfd-node--selected,
.qfd-node--form.qfd-node--selected {
  background: var(--qfd-accent-soft) !important;
  box-shadow: inset 3px 0 0 var(--qfd-accent);
}

.qfd-node--drop {
  box-shadow: inset 0 3px 0 var(--qfd-accent);
}

.qfd-node__select {
  display: flex;
  flex: 1;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  padding: 0.35rem 0.5rem !important;
  border: 0 !important;
  background: transparent !important;
  text-align: left;
}

.qfd-tree__item--page > .qfd-node .qfd-node__label {
  font-weight: 700;
}

.qfd-node__icon {
  flex: none;
  width: 1.6rem;
  color: var(--qfd-muted);
  font-size: 0.8rem;
  text-align: center;
}

.qfd-node__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qfd-node__actions {
  display: flex;
  flex: none;
  color: var(--qfd-muted);
}

.qfd-badge {
  display: inline-grid;
  flex: none;
  place-items: center;
  width: 1.1rem;
  height: 1.1rem;
  margin-left: auto;
  border-radius: 50%;
  background: var(--qfd-error);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
}

.qfd-add {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 1rem;
}

/* ---- preview -------------------------------------------------------------------------------- */

.qfd-preview__bar {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--qfd-line);
  background: var(--qfd-canvas);
}

.qfd-tabs {
  display: flex;
  gap: 0.25rem;
}

.qfd-tabs [aria-selected="true"] {
  border-color: var(--qfd-accent);
  background: var(--qfd-accent-soft);
  font-weight: 600;
}

.qfd-preview__panel {
  padding: 1rem;
}

.qfd-preview__frame {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  border: 1px solid var(--qfd-line);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 1px 3px rgb(0 0 0 / 8%);
}

.qfd-banner {
  max-width: 44rem;
  margin: 0 auto 1rem;
  padding: 0.5rem 0.75rem;
  border-left: 4px solid #f47738;
  background: #fff4ec;
}

.qfd-empty {
  color: var(--qfd-muted);
  text-align: center;
}

.qfd-json {
  overflow: auto;
  padding: 1rem;
  border-radius: 4px;
  background: #fff;
}

/* ---- settings ------------------------------------------------------------------------------- */

.qfd-settings__title {
  margin: 0 0 1rem;
  font-size: 1.15rem;
}

.qfd-section h3 {
  margin: 1.5rem 0 0.25rem;
  font-size: 1rem;
}

.qfd-setting {
  margin: 0 0 1rem;
  padding: 0;
  border: 0;
}

.qfd-setting__label {
  display: block;
  margin-bottom: 0.2rem;
  padding: 0;
  font-weight: 600;
}

.qfd-setting__hint {
  margin: 0 0 0.3rem;
  color: var(--qfd-muted);
  font-size: 0.85rem;
}

.qfd-setting--error input {
  border-color: var(--qfd-error);
}

.qfd-error {
  margin: 0.25rem 0 0;
  color: var(--qfd-error);
  font-size: 0.875rem;
  font-weight: 600;
}

.qfd-lang-row {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.qfd-lang {
  color: var(--qfd-muted);
  font-size: 0.85rem;
}

.qfd-formula-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.3rem;
}

.qfd-formula-tools select {
  width: auto;
  max-width: 14rem;
  font-size: 0.85rem;
}

.qfd-help {
  margin-top: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  background: var(--qfd-canvas);
  font-size: 0.85rem;
}

.qfd-help ul {
  margin: 0 0 0.5rem;
  padding-left: 1.1rem;
}

.qfd-help th {
  padding: 0.25rem 0.75rem 0.25rem 0;
  font-family: ui-monospace, Consolas, monospace;
  font-weight: 600;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

.qfd-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.qfd-row > * {
  flex: 1;
}

.qfd-row > .qfd-icon {
  flex: none;
  margin-top: 1.6rem;
}

.qfd-row--list {
  align-items: center;
}

.qfd-row--list > span {
  flex: none;
}

.qfd-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 0.5rem;
}

.qfd-table th {
  color: var(--qfd-muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-align: left;
}

.qfd-table td {
  padding: 0.15rem 0.2rem 0.15rem 0;
}

.qfd-nowrap {
  white-space: nowrap;
}

.qfd-card {
  margin: 0 0 1rem;
  padding: 0.75rem;
  border: 1px solid var(--qfd-line);
  border-radius: 6px;
}

.qfd-card legend {
  padding: 0 0.25rem;
  font-family: ui-monospace, Consolas, monospace;
  font-weight: 600;
}

.qfd-card .qfd-danger {
  margin-top: 0.5rem;
}

/* ---- notice --------------------------------------------------------------------------------- */

.qfd-notice {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: 40rem;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  background: #1d1f21;
  color: #fff;
  box-shadow: 0 4px 16px rgb(0 0 0 / 25%);
  transform: translateX(-50%);
}

.qfd-notice .qfd-link {
  color: #9fd3ff;
}

.qfd-notice .qfd-icon {
  color: #fff;
}

.qfd-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}

@media (max-width: 1100px) {
  .qfd-app {
    grid-template-columns: var(--qfd-outline-width, 240px) 6px minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr) minmax(0, 1fr) 6px var(--qfd-problems-height, 120px);
    grid-template-areas:
      "toolbar toolbar toolbar"
      "outline split-outline preview"
      "outline split-outline settings"
      "split-problems split-problems split-problems"
      "problems problems problems";
  }

  .qfd-splitter--settings {
    display: none;
  }

  .qfd-settings {
    border-top: 1px solid var(--qfd-line);
  }
}