/* ─── Reset & base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #f4f5f9;
  --surface:     #ffffff;
  --border:      #dde1ea;
  --border-mid:  #c8cdd8;
  --text:        #1e2330;
  --text-muted:  #6b7385;
  --accent:      #4f6af0;
  --accent-dark: #3a54d6;
  --accent-lite: #eef0fd;
  --danger:      #d94040;
  --danger-lite: #fdf0f0;
  --warn-bg:     #fffbeb;
  --warn-border: #f0c040;
  --warn-text:   #7a5c00;
  --sub-bg:      #f0f2fb;
  --sub-border:  #c0c8e8;
  --radius:      6px;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:   0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Cascadia Code", Consolas, monospace;
}

html, body {
  height: 100%;
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

/* ─── Layout ───────────────────────────────────────────────────────────────── */
#app {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* ─── Header ───────────────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  background: #1a1f2e;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  z-index: 10;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: #7c93f8;
  letter-spacing: -1px;
}

.header-brand h1 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.3px;
  color: #fff;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ─── Main scroll area ─────────────────────────────────────────────────────── */
.app-main {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

#content-area {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ─── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: none;
  border-radius: var(--radius);
  font: 13px/1 var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: background .12s, box-shadow .12s, opacity .12s;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); }

.btn-ghost {
  background: rgba(255,255,255,.08);
  color: #e0e4f0;
  border: 1px solid rgba(255,255,255,.14);
}
.btn-ghost:hover { background: rgba(255,255,255,.14); }

.btn-ghost-dark {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost-dark:hover {
  background: var(--bg);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: #b83232; }

/* ─── Key picker ───────────────────────────────────────────────────────────── */
.key-picker-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #b8c0d8;
}

.key-picker {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff;
  border-radius: var(--radius);
  padding: 5px 10px;
  font: 13px var(--font);
  cursor: pointer;
}
.key-picker:focus { outline: 2px solid var(--accent); }
.key-picker option { color: var(--text); background: var(--surface); }

/* ─── Drop zone ────────────────────────────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--border-mid);
  border-radius: 12px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 64px 32px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  text-align: center;
  min-height: 300px;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-lite);
}

.drop-zone-icon {
  font-size: 48px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -4px;
  line-height: 1;
}

.drop-zone-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}

.drop-zone-sub {
  color: var(--text-muted);
  font-size: 14px;
}

.parse-error {
  margin-top: 12px;
  padding: 10px 16px;
  background: var(--danger-lite);
  color: var(--danger);
  border-radius: var(--radius);
  font-size: 13px;
  border: 1px solid #f0c0c0;
}

/* ─── File info bar ────────────────────────────────────────────────────────── */
.file-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.file-name {
  font-weight: 600;
  font-size: 13px;
}

.file-note {
  font-size: 12px;
  color: var(--text-muted);
}

/* ─── Warning banner ───────────────────────────────────────────────────────── */
.warning-banner {
  padding: 14px 18px;
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: var(--radius);
  color: var(--warn-text);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.warning-banner strong {
  font-size: 14px;
}

.warning-banner ul {
  margin-left: 20px;
}

.warning-banner code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(0,0,0,.05);
  padding: 1px 5px;
  border-radius: 3px;
}

/* ─── Error state ──────────────────────────────────────────────────────────── */
.error-state {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.error-icon {
  font-size: 40px;
}

.error-state h2 {
  font-size: 20px;
  font-weight: 600;
}

.error-state p {
  color: var(--text-muted);
  max-width: 480px;
}

.error-state ul {
  list-style: disc;
  margin-left: 20px;
  text-align: left;
  color: var(--text-muted);
}

/* ─── Table wrapper ────────────────────────────────────────────────────────── */
.table-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  box-shadow: var(--shadow-sm);
}

.btn-add-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 10px 12px 12px;
  padding: 6px 12px;
  background: transparent;
  border: 1px dashed var(--border-mid);
  border-radius: var(--radius);
  color: var(--text-muted);
  font: 13px var(--font);
  cursor: pointer;
  transition: background .12s, color .12s, border-color .12s;
}
.btn-add-row:hover {
  background: var(--accent-lite);
  color: var(--accent);
  border-color: var(--accent);
}

/* ─── Data table ───────────────────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table thead th {
  position: sticky;
  top: 0;
  background: #f0f2f8;
  border-bottom: 2px solid var(--border);
  padding: 9px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--text-muted);
  white-space: nowrap;
  z-index: 2;
}

.data-table thead th.col-rownum {
  width: 42px;
  text-align: center;
  color: #aab0c0;
}

.data-table thead th.col-actions {
  width: 48px;
}

.data-table thead th.col-subtable {
  color: var(--accent);
}

.data-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background .08s;
}
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: #f9fafc; }

.data-table tbody td {
  padding: 8px 12px;
  vertical-align: middle;
}

.data-table tbody td.col-rownum {
  text-align: center;
  color: #aab0c0;
  font-size: 12px;
  user-select: none;
}

.data-table tbody td.col-actions {
  padding: 4px 8px;
  text-align: center;
}

/* Editable cells */
.cell-editable {
  cursor: text;
  position: relative;
  min-width: 80px;
}
.cell-editable:hover { background: #f0f2fb; }
.cell-editable:focus { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: 3px; }
.cell-editable.editing { padding: 0; background: #fff; }

.cell-null { color: #b0b8c8; font-style: italic; font-size: 12px; }
.cell-bool-true  { color: #2b8a4a; font-weight: 600; font-family: var(--font-mono); font-size: 12px; }
.cell-bool-false { color: #a03333; font-weight: 600; font-family: var(--font-mono); font-size: 12px; }

.cell-input {
  width: 100%;
  padding: 7px 10px;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  font: 13px var(--font);
  color: var(--text);
  background: #fff;
  outline: none;
  box-shadow: 0 0 0 3px rgba(79,106,240,.12);
}

/* Delete button */
.btn-delete {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: #b0b8c8;
  font-size: 13px;
  cursor: pointer;
  transition: background .1s, color .1s;
}
.btn-delete:hover { background: var(--danger-lite); color: var(--danger); }

/* ─── Sub-table toggle ─────────────────────────────────────────────────────── */
.btn-subtable-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--sub-border);
  border-radius: 20px;
  background: var(--sub-bg);
  color: var(--accent);
  font: 12px var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: background .1s, border-color .1s;
}
.btn-subtable-toggle:hover { background: #e0e4f8; border-color: var(--accent); }
.btn-subtable-toggle.expanded { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ─── Inline sub-table ─────────────────────────────────────────────────────── */
.subtable-row > td {
  padding: 0;
  background: var(--sub-bg);
}

.subtable-container {
  border-top: 2px solid var(--sub-border);
  border-bottom: 2px solid var(--sub-border);
  padding: 12px 12px 4px 36px;
}

.sub-table {
  background: #fff;
  border: 1px solid var(--sub-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.sub-table thead th {
  background: #e8ebf6;
  font-size: 11px;
}

/* Deep-nesting read-only */
.cell-deep-nested {
  max-width: 320px;
}
.deep-nested-badge {
  display: inline-block;
  padding: 2px 7px;
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 10px;
  font-size: 11px;
  color: var(--warn-text);
  margin-bottom: 4px;
}
.deep-nested-json {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  white-space: pre;
  overflow: auto;
  max-height: 120px;
  background: #f7f8fc;
  padding: 6px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ─── Toasts ───────────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 100;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: #1a1f2e;
  color: #e8eaf2;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  font-size: 13px;
  min-width: 260px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .2s, transform .2s;
  position: relative;
  overflow: hidden;
}
.toast.visible { opacity: 1; transform: translateY(0); }
.toast.dismissing { opacity: 0; transform: translateY(8px); }

.toast-msg { flex: 1; }

.toast-undo {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 4px 10px;
  border-radius: 4px;
  font: 12px/1 var(--font);
  font-weight: 600;
  cursor: pointer;
}
.toast-undo:hover { background: var(--accent-dark); }

.toast-close {
  background: none;
  border: none;
  color: #7a82a0;
  font-size: 14px;
  cursor: pointer;
  padding: 2px 4px;
  line-height: 1;
}
.toast-close:hover { color: #fff; }

.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(1);
}
.toast-progress.running {
  animation: toast-shrink linear forwards;
}

@keyframes toast-shrink {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ─── Reset link ───────────────────────────────────────────────────────────── */
.reset-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font: 12px var(--font);
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}
.reset-link:hover { color: var(--text); }

/* ─── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #a0a8bc; }

/* ─── Footer ───────────────────────────────────────────────────────────────── */
.app-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  background: #1a1f2e;
  color: #6b7490;
  font-size: 12px;
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,.07);
  gap: 16px;
}
.app-footer a {
  color: #7c93f8;
  text-decoration: none;
}
.app-footer a:hover { text-decoration: underline; }

/* ─── Home screen (two options) ────────────────────────────────────────────── */
.home-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 640px) {
  .home-options { grid-template-columns: 1fr; }
}

.builder-card {
  border: 2px dashed var(--border-mid);
  border-radius: 12px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 64px 32px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  text-align: center;
  min-height: 300px;
}
.builder-card:hover {
  border-color: var(--accent);
  background: var(--accent-lite);
}
.builder-card-icon {
  font-size: 52px;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
}

/* ─── Builder page ─────────────────────────────────────────────────────────── */
.builder-body {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .builder-body { grid-template-columns: 1fr; }
}

.builder-heading {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 20px;
}

.builder-filename-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.builder-filename-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}
.builder-filename-input {
  flex: 1;
  max-width: 280px;
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: 13px var(--font);
  color: var(--text);
  background: var(--surface);
  transition: border-color .12s, box-shadow .12s;
}
.builder-filename-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,106,240,.12);
}

.builder-error {
  padding: 9px 14px;
  background: var(--danger-lite);
  border: 1px solid #f0c0c0;
  border-radius: var(--radius);
  color: var(--danger);
  font-size: 13px;
  margin-bottom: 14px;
}

.builder-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.builder-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.builder-cols-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.builder-col-wrapper {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.builder-col-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.builder-col-input {
  flex: 1;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: 13px var(--font);
  color: var(--text);
  background: #fff;
  transition: border-color .12s, box-shadow .12s;
}
.builder-col-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,106,240,.12);
}

.builder-type-select {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: 13px var(--font);
  color: var(--text);
  background: #fff;
  cursor: pointer;
  min-width: 130px;
}
.builder-type-select:focus {
  outline: none;
  border-color: var(--accent);
}

/* Sub-columns */
.builder-sub-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-left: 20px;
  padding-left: 12px;
  border-left: 2px solid var(--sub-border);
  margin-top: 4px;
}
.builder-sub-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.builder-sub-connector {
  color: var(--sub-border);
  font-size: 14px;
  flex-shrink: 0;
}

/* Preview pane */
.builder-preview {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre;
  overflow: auto;
  background: #f7f8fc;
  border-radius: 4px;
  padding: 2px 0;
  margin: 0;
  max-height: 500px;
}

.builder-left  { display: flex; flex-direction: column; gap: 0; }
.builder-right { position: sticky; top: 80px; }

/* ─── Add-column panel ─────────────────────────────────────────────────────── */
.add-col-panel {
  background: var(--surface);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.add-col-panel-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--accent);
}
.add-col-error {
  color: var(--danger);
  font-size: 12px;
  margin-left: 4px;
}

/* ─── Home: 4-card grid ────────────────────────────────────────────────────── */
.home-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 640px) {
  .home-options { grid-template-columns: 1fr; }
}

.home-card {
  border: 2px dashed var(--border-mid);
  border-radius: 12px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 32px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  text-align: center;
  min-height: 200px;
}
.home-card:hover {
  border-color: var(--accent);
  background: var(--accent-lite);
}
.home-card-icon {
  font-size: 44px;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
}

/* ─── View toggle (Grid / Form) ────────────────────────────────────────────── */
.view-toggle {
  display: flex;
  gap: 2px;
  background: rgba(0,0,0,.25);
  padding: 3px;
  border-radius: calc(var(--radius) + 3px);
}
.view-toggle .btn {
  padding: 5px 13px;
  font-size: 12px;
  border-radius: calc(var(--radius));
  border: none;
}
.view-toggle .btn.view-active {
  background: var(--accent);
  color: #fff;
}
.view-toggle .btn:not(.view-active) {
  background: transparent;
  color: #c0c8e0;
}
.view-toggle .btn:not(.view-active):hover {
  background: rgba(255,255,255,.1);
  color: #fff;
}

/* ─── Search bar ───────────────────────────────────────────────────────────── */
.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.search-icon {
  font-size: 14px;
  flex-shrink: 0;
  opacity: .7;
}
.search-field-select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: 13px var(--font);
  color: var(--text);
  background: #fff;
  cursor: pointer;
  min-width: 120px;
}
.search-field-select:focus {
  outline: none;
  border-color: var(--accent);
}
.search-value-input {
  flex: 1;
  max-width: 320px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: 13px var(--font);
  color: var(--text);
  background: #fff;
  transition: border-color .12s, box-shadow .12s;
}
.search-value-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,106,240,.12);
}
.search-clear {
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: #b0b8c8;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .1s, color .1s;
}
.search-clear:hover { background: var(--danger-lite); color: var(--danger); }
.search-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ─── Form view nav ────────────────────────────────────────────────────────── */
.form-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: background .1s, border-color .1s, color .1s;
  flex-shrink: 0;
}
.btn-nav:hover:not(:disabled) {
  background: var(--accent-lite);
  border-color: var(--accent);
  color: var(--accent);
}
.btn-nav:disabled {
  opacity: .35;
  cursor: default;
}
.form-nav-counter {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  padding: 0 6px;
  white-space: nowrap;
}
.form-nav-sep {
  flex: 1;
}
.btn-danger-ghost {
  color: var(--danger) !important;
  border-color: #f0c0c0 !important;
}
.btn-danger-ghost:hover {
  background: var(--danger-lite) !important;
}

/* ─── Form card ────────────────────────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px 24px;
}
.form-record-num {
  grid-column: 1 / -1;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.form-field-subtable {
  grid-column: 1 / -1;
}
.form-field-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: .3px;
}
.form-field-type {
  font-size: 10px;
  font-weight: 400;
  background: var(--accent-lite);
  color: var(--accent);
  border-radius: 10px;
  padding: 1px 6px;
  text-transform: none;
  letter-spacing: 0;
}
.form-field-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: 14px var(--font);
  color: var(--text);
  background: #fff;
  transition: border-color .12s, box-shadow .12s;
}
.form-field-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,106,240,.12);
}
.form-subtable-wrap {
  background: var(--sub-bg);
  border-radius: var(--radius);
  overflow: auto;
  border: 1px solid var(--sub-border);
}
.form-empty {
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

/* ─── FAQ page ─────────────────────────────────────────────────────────────── */
.page-heading {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
}
.page-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: -8px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq-item {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child { border-bottom: none; }
.faq-q {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 6px;
}
.faq-a {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ─── Examples page ────────────────────────────────────────────────────────── */
.examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.example-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: box-shadow .15s, border-color .15s;
}
.example-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-mid);
}
.example-icon {
  font-size: 32px;
  line-height: 1;
}
.example-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.example-desc {
  font-size: 13px;
  color: var(--text-muted);
  flex: 1;
  line-height: 1.5;
}
.example-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
  flex-wrap: wrap;
}
.example-actions .btn {
  flex: 1;
  justify-content: center;
  font-size: 12px;
  padding: 7px 10px;
}

/* ─── Sortable column headers ──────────────────────────────────────────────── */
.col-sortable {
  cursor: pointer;
  user-select: none;
  transition: color .12s, background .12s;
  white-space: nowrap;
}
.col-sortable:hover {
  color: var(--accent);
  background: var(--accent-lite);
}
.col-sorted {
  color: var(--accent) !important;
  background: var(--accent-lite) !important;
}

/* Wider actions column to fit dupe + delete */
.data-table thead th.col-actions { width: 68px; }
.data-table tbody td.col-actions { padding: 4px 6px; }

/* ─── Duplicate button ─────────────────────────────────────────────────────── */
.btn-dupe {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: #b0b8c8;
  font-size: 14px;
  cursor: pointer;
  transition: background .1s, color .1s;
}
.btn-dupe:hover {
  background: var(--accent-lite);
  color: var(--accent);
}

/* ─── Stats bar ────────────────────────────────────────────────────────────── */
.stats-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: #f0f2f8;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.stats-count {
  font-weight: 600;
  color: var(--text);
}
.stats-sep {
  color: var(--border-mid);
  font-size: 14px;
}
.stats-metric {
  display: flex;
  align-items: center;
  gap: 4px;
}
.stats-metric-name {
  font-weight: 600;
  color: var(--text);
}
.stats-metric-avg {
  color: var(--text-muted);
}
.stats-sort-info {
  font-weight: 500;
  color: var(--accent);
}
.stats-clear-sort {
  padding: 2px 8px;
  border: 1px solid var(--accent);
  border-radius: 10px;
  background: transparent;
  color: var(--accent);
  font: 11px var(--font);
  cursor: pointer;
  transition: background .1s, color .1s;
}
.stats-clear-sort:hover {
  background: var(--accent);
  color: #fff;
}

/* ─── Form view keyboard hint ──────────────────────────────────────────────── */
.form-nav-hint {
  font-size: 11px;
  color: #8090b0;
  padding: 0 4px;
  white-space: nowrap;
}

/* ─── Builder template picker ──────────────────────────────────────────────── */
.builder-template-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  padding: 12px 14px;
  background: var(--accent-lite);
  border: 1px solid #c8d0f8;
  border-radius: var(--radius);
}
.builder-template-select {
  flex: 1;
  max-width: 280px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: 13px var(--font);
  color: var(--text);
  background: #fff;
  cursor: pointer;
  transition: border-color .12s;
}
.builder-template-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,106,240,.12);
}
.builder-template-hint {
  font-size: 12px;
  color: var(--accent);
  opacity: .75;
}

/* Column reorder buttons (builder page) */
.btn-col-order {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  transition: background .1s, color .1s, border-color .1s;
  flex-shrink: 0;
}
.btn-col-order:hover:not(:disabled) {
  background: var(--accent-lite);
  color: var(--accent);
  border-color: var(--accent);
}
.btn-col-order:disabled {
  opacity: .3;
  cursor: default;
}