/* ===== FORMS: DESIGN PANE ===== */
/* Fragment owned by form-design.js (#frmPane-design). Builds on the shared
   design system in frm-shared.css (.frm-btn / .frm-select / .frm-toggle /
   .frm-empty) and the dashboard token layer in index.css (:root vars), so the
   dark default and [data-theme=light] both work with no extra rules here.
   Namespaced under .frm-design- / .frm-skin- / .frm-theme-. */

/* ── layout: preview column (left) + control panel (right) ─────────────── */
/* This pane renders inside #formEditorOverlay, a fixed full-viewport takeover
   that is NOT a descendant of #tab-forms — so it never inherits that tab's
   1760px cap. Without its own cap, the flexible preview column (minmax(0,1fr))
   stretches to fill an ultrawide monitor (3440-3822px), blowing the form
   preview "stage" up to ~3000px wide. 1400px keeps the preview a believable
   size next to the fixed 420px control panel. */
.frm-design {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: var(--s6);
  align-items: start;
  padding: var(--s6);
  max-width: 1400px;
  margin: 0 auto;
}
@media (max-width: 1100px) {
  .frm-design {
    grid-template-columns: 1fr;
    gap: var(--s5);
    padding: var(--s5);
  }
}

/* ── preview column ─────────────────────────────────────────────────────── */
.frm-design-preview {
  position: sticky;
  top: var(--s5);
  min-width: 0;
}
/* Single-column stack (tablet/mobile): the preview must scroll away above the
   panel — a sticky preview would pin to the top and overlap the sub-tabs. This
   sits AFTER the base rule so it wins on source order at equal specificity. */
@media (max-width: 1100px) {
  .frm-design-preview {
    position: static;
    top: auto;
  }
}
.frm-design-preview-head {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin-bottom: var(--s3);
  color: var(--t1);
  font-size: var(--fz-md);
  font-weight: var(--fw-semibold);
}
.frm-design-preview-head .frm-ico {
  width: 15px;
  height: 15px;
  color: var(--t3);
}
.frm-design-preview-hint {
  margin-left: auto;
  color: var(--t3);
  font-size: var(--fz-sm);
  font-weight: var(--fw-normal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.frm-design-stage {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r5);
  padding: 56px 40px;
  min-height: 360px;
  display: flex;
  align-items: center;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.frm-design-stage-inner {
  position: relative;
  width: 100%;
  min-width: 0;
  z-index: 1;
}
.frm-design-pattern-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(0, 0, 0, 0.08) 1px, transparent 1px);
  background-size: 12px 12px;
}
.frm-design-preview-note {
  margin-top: var(--s3);
  color: var(--t3);
  font-size: var(--fz-sm);
  text-align: center;
}
.frm-design-preview-empty {
  width: 100%;
  text-align: center;
  color: var(--t3);
  font-size: var(--fz-lg);
  padding: var(--s7) var(--s4);
}

/* ── TypeSkin preview: mirror the runtime's centered one-question layout ──── */
/* The renderQuestionPreview markup is Spektra-shaped (left-aligned, inline
   styles); a couple of scoped overrides re-center it so the pane preview
   visibly reflects a TypeSkin selection. !important is needed only where an
   inline style (the 2-col choice grid) would otherwise win. */
.frm-design-stage-typeskin .frm-pv {
  text-align: center;
}
.frm-design-stage-typeskin .frm-pv-head {
  margin-bottom: 32px;
}
.frm-design-stage-typeskin .frm-pv-title {
  font-size: 40px !important;
}
.frm-design-stage-typeskin .frm-pv-control {
  max-width: 460px;
  margin: 0 auto;
  text-align: left;
}
.frm-design-stage-typeskin .frm-pv-choices {
  grid-template-columns: 1fr !important;
}
.frm-design-stage-typeskin .frm-pv-cta-row {
  justify-content: center;
}

/* ── control panel + sub-tab strip ──────────────────────────────────────── */
.frm-design-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r5);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.frm-design-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--chip);
}
.frm-design-tab {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  padding: var(--s4) var(--s3);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--t2);
  font-family: inherit;
  font-size: var(--fz-md);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition:
    color var(--tr-base),
    border-color var(--tr-base),
    background var(--tr-base);
}
.frm-design-tab .frm-ico {
  width: 15px;
  height: 15px;
  opacity: 0.85;
}
.frm-design-tab:hover {
  color: var(--t1);
  background: var(--card-hover);
}
.frm-design-tab-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.frm-design-tab-active .frm-ico {
  opacity: 1;
}
.frm-design-body {
  padding: var(--s5) var(--s5) var(--s6);
  max-height: calc(100vh - 220px);
  overflow-y: auto;
}

/* ── sections ───────────────────────────────────────────────────────────── */
.frm-design-section {
  margin-bottom: var(--s7);
}
.frm-design-section:last-child {
  margin-bottom: 0;
}
.frm-design-section-title {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-size: var(--fz-xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--t3);
}
.frm-design-section-title .frm-ico {
  width: 14px;
  height: 14px;
  color: var(--accent);
}
.frm-design-section-sub {
  color: var(--t3);
  font-size: var(--fz-sm);
  line-height: var(--lh-snug);
  margin: var(--s1) 0 var(--s4);
}
.frm-design-note {
  color: var(--t2);
  font-size: var(--fz-sm);
  line-height: var(--lh-normal);
  background: var(--chip);
  border: 1px dashed var(--border2);
  border-radius: var(--r3);
  padding: var(--s3) var(--s4);
  margin-top: var(--s2);
}
.frm-design-settings-empty {
  margin-top: var(--s2);
}
.frm-design-empty-pane {
  margin: var(--s8) auto;
  max-width: 420px;
}

/* ── skin cards ─────────────────────────────────────────────────────────── */
.frm-skin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s4);
}
.frm-skin-card {
  position: relative;
  display: block;
  width: 100%;
  text-align: left;
  background: var(--chip);
  border: 1px solid var(--border);
  border-radius: var(--r4);
  padding: var(--s4);
  cursor: pointer;
  font-family: inherit;
  transition:
    border-color var(--tr-base),
    box-shadow var(--tr-base),
    transform var(--tr-fast);
}
.frm-skin-card:hover:not(:disabled) {
  border-color: var(--border3);
  transform: translateY(-2px);
}
.frm-skin-selected {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.frm-skin-soon {
  opacity: 0.6;
  cursor: not-allowed;
}
.frm-skin-soon-badge,
.frm-skin-selected-badge {
  position: absolute;
  top: var(--s3);
  right: var(--s3);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fz-xs);
  font-weight: var(--fw-semibold);
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--pill);
  border: 1px solid var(--border2);
  color: var(--t3);
  z-index: 1;
}
.frm-skin-soon-badge .frm-ico,
.frm-skin-selected-badge .frm-ico {
  width: 11px;
  height: 11px;
}
.frm-skin-selected-badge {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.frm-skin-thumb {
  display: block;
  height: 78px;
  border-radius: var(--r3);
  background: var(--track);
  border: 1px solid var(--border);
  margin-bottom: var(--s3);
  position: relative;
  overflow: hidden;
}
.frm-skin-thumb::before,
.frm-skin-thumb::after {
  content: '';
  position: absolute;
  border-radius: 3px;
}
.frm-skin-thumb-typeskin::before {
  left: 22%;
  right: 22%;
  top: 28px;
  height: 8px;
  background: var(--t3);
}
.frm-skin-thumb-typeskin::after {
  left: 34%;
  right: 34%;
  top: 46px;
  height: 6px;
  background: var(--border3);
}
.frm-skin-thumb-chatbot::before {
  left: 12px;
  top: 18px;
  width: 44%;
  height: 14px;
  border-radius: 8px 8px 8px 2px;
  background: var(--border3);
}
.frm-skin-thumb-chatbot::after {
  right: 12px;
  bottom: 18px;
  width: 44%;
  height: 14px;
  border-radius: 8px 8px 2px 8px;
  background: var(--accent);
  opacity: 0.75;
}
.frm-skin-thumb-calendar::before {
  left: 16px;
  right: 16px;
  top: 14px;
  bottom: 14px;
  background-image:
    repeating-linear-gradient(0deg, var(--border3) 0 2px, transparent 2px 13px),
    repeating-linear-gradient(90deg, var(--border3) 0 2px, transparent 2px 17px);
  opacity: 0.8;
}
.frm-skin-thumb-spektra::before {
  left: 16%;
  right: 16%;
  top: 20px;
  height: 10px;
  background: var(--t2);
}
.frm-skin-thumb-spektra::after {
  left: 16%;
  top: 42px;
  width: 34%;
  height: 14px;
  border-radius: 7px;
  background: var(--accent);
}
.frm-skin-name {
  display: block;
  color: var(--t1);
  font-size: var(--fz-md);
  font-weight: var(--fw-semibold);
}
.frm-skin-desc {
  display: block;
  color: var(--t3);
  font-size: var(--fz-sm);
  line-height: var(--lh-snug);
  margin-top: 3px;
}

/* ── quick-theme preset cards ───────────────────────────────────────────── */
.frm-theme-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s3);
}
.frm-theme-card {
  background: var(--chip);
  border: 1px solid var(--border);
  border-radius: var(--r3);
  padding: var(--s2) var(--s2) var(--s3);
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition:
    border-color var(--tr-base),
    box-shadow var(--tr-base),
    transform var(--tr-fast);
}
.frm-theme-card:hover {
  border-color: var(--border3);
  transform: translateY(-1px);
}
.frm-theme-active {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.frm-theme-strip {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 34px;
  border-radius: var(--r2);
  border: 1px solid var(--border2);
  padding: 0 8px;
  margin-bottom: var(--s2);
}
.frm-theme-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.15);
}
.frm-theme-name {
  display: block;
  color: var(--t2);
  font-size: var(--fz-sm);
  font-weight: var(--fw-medium);
  padding-left: 2px;
}
.frm-theme-active .frm-theme-name {
  color: var(--t1);
}

/* ── color token rows ───────────────────────────────────────────────────── */
.frm-design-colorlist {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--r3);
  background: var(--card);
  padding: 0 var(--s4);
}
.frm-design-colorrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  padding: var(--s3) 0;
  border-bottom: 1px solid var(--border);
}
.frm-design-colorrow:last-child {
  border-bottom: none;
}
.frm-design-colormeta {
  min-width: 0;
}
.frm-design-colorlabel {
  color: var(--t1);
  font-size: var(--fz-base);
  font-weight: var(--fw-medium);
}
.frm-design-colordesc {
  color: var(--t3);
  font-size: var(--fz-sm);
  line-height: var(--lh-snug);
  margin-top: 2px;
}
.frm-design-colorinputs {
  display: flex;
  align-items: center;
  gap: var(--s2);
  flex: 0 0 auto;
}
.frm-design-hex {
  width: 96px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  color: var(--t1);
  padding: 7px 9px;
  font-size: var(--fz-sm);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}
.frm-design-hex:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.frm-design-hex-invalid,
.frm-design-hex-invalid:focus {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-dim);
}
.frm-design-swatchinput {
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  background: var(--bg2);
  cursor: pointer;
  flex: 0 0 auto;
}
.frm-design-swatchinput::-webkit-color-swatch-wrapper {
  padding: 3px;
}
.frm-design-swatchinput::-webkit-color-swatch {
  border: none;
  border-radius: 5px;
}
.frm-design-swatchinput::-moz-color-swatch {
  border: none;
  border-radius: 5px;
}

/* ── segmented control (Calendar|Booking Confirmed, Solid|Gradient) ────── */
.frm-design-seg {
  display: inline-flex;
  background: var(--pill);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  margin-bottom: var(--s3);
}
.frm-design-seg-btn {
  border: none;
  background: none;
  color: var(--t2);
  padding: 5px 14px;
  border-radius: 999px;
  font-family: inherit;
  font-size: var(--fz-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition:
    background var(--tr-base),
    color var(--tr-base);
}
.frm-design-seg-btn:hover:not(.frm-design-seg-active) {
  color: var(--t1);
}
.frm-design-seg-active {
  background: var(--accent);
  color: #fff;
}

/* ── typography / generic field rows ───────────────────────────────────── */
.frm-design-fieldrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  padding: var(--s3) 0;
  border-bottom: 1px solid var(--border);
}
.frm-design-fieldrow:last-child {
  border-bottom: none;
}
.frm-design-fieldlabel {
  color: var(--t1);
  font-size: var(--fz-base);
  font-weight: var(--fw-medium);
}
/* the typography selects use the shared .frm-select (caret + focus ring); just
   constrain the width so they sit right-aligned in the label|control row. */
.frm-design-fieldrow .frm-select {
  width: auto;
  max-width: 220px;
  flex: 0 0 auto;
}
/* the gradient-angle input uses the shared .frm-input; keep it compact. */
.frm-design-number.frm-input {
  width: 90px;
  flex: 0 0 auto;
}

/* ── background swatch grid + pattern toggle ───────────────────────────── */
.frm-design-bgswatches {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: var(--s2);
  margin: var(--s2) 0 var(--s4);
}
.frm-design-bgswatch {
  aspect-ratio: 1;
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  cursor: pointer;
  padding: 0;
  transition:
    transform var(--tr-fast),
    box-shadow var(--tr-fast);
}
.frm-design-bgswatch:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-sm);
}
.frm-design-bgswatch-active {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.frm-design-togglerow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  padding: var(--s4) 0 0;
  border-top: 1px solid var(--border);
  margin-top: var(--s4);
}
@media (max-width: 640px) {
  .frm-design-bgswatches {
    grid-template-columns: repeat(4, 1fr);
  }
  /* Three preset cards don't fit a phone-width panel (their min-content spills
     past the panel edge) — drop to two columns. */
  .frm-theme-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}