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

:root {
  --bg:         #0F172A;
  --card:       #1E293B;
  --card2:      #243147;
  --border:     #2D3F55;
  --teal:       #0D9488;
  --teal-light: #14B8A6;
  --teal-dim:   #0D948830;
  --blue:       #3B82F6;
  --blue-dim:   #3B82F620;
  --green:      #22C55E;
  --green-dim:  #22C55E20;
  --amber:      #F59E0B;
  --amber-dim:  #F59E0B20;
  --slate:      #64748B;
  --slate-dim:  #64748B20;
  --text:       #E2E8F0;
  --text-muted: #94A3B8;
  --text-dim:   #64748B;
  --mono:       'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --sans:       'Segoe UI', system-ui, sans-serif;
  --radius:     8px;
  --radius-lg:  12px;
  --shadow:     0 4px 24px rgba(0,0,0,0.4);
}

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

/* ── Header ────────────────────────────────────────────────────── */
header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 16px rgba(0,0,0,0.3);
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { font-size: 22px; }
.logo-title { font-size: 15px; font-weight: 700; color: var(--teal-light); letter-spacing: 0.02em; }
.logo-sub { font-size: 11px; color: var(--text-muted); }

nav { display: flex; gap: 4px; }
.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all .15s;
}
.nav-btn:hover { background: var(--card2); color: var(--text); }
.nav-btn.active { background: var(--teal-dim); color: var(--teal-light); }

/* ── Main Layout ───────────────────────────────────────────────── */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* ── Tabs ──────────────────────────────────────────────────────── */
.tab { display: none; }
.tab.active { display: block; }

/* ── Page Header ───────────────────────────────────────────────── */
.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.page-header p { color: var(--text-muted); font-size: 14px; }

/* ── Cards Grid ────────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.card-icon { font-size: 28px; }
.card h3 { font-size: 15px; font-weight: 600; color: var(--text); }
.card p { font-size: 13px; color: var(--text-muted); }
code { font-family: var(--mono); font-size: 12px; background: var(--card2); padding: 2px 5px; border-radius: 4px; color: var(--teal-light); }

/* ── Schema Selector ───────────────────────────────────────────── */
.schema-selector { display: flex; flex-direction: column; gap: 8px; }
.schema-pair {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color .15s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.schema-pair:hover { border-color: var(--teal); }
.schema-pair.selected { border-color: var(--teal); background: var(--teal-dim); }
.schema-pair input[type=radio] { accent-color: var(--teal); }
.schema-pair-label { font-family: var(--mono); font-size: 12px; color: var(--text); }
.loading-msg { color: var(--text-muted); font-size: 13px; }

/* ── Upload Area ───────────────────────────────────────────────── */
.upload-area { display: flex; flex-direction: column; gap: 10px; }
.upload-label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
}
.upload-label input[type=file] {
  font-size: 12px;
  color: var(--text);
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
  width: 100%;
  cursor: pointer;
}
.upload-label input[type=file]::file-selector-button {
  background: var(--teal);
  color: #fff;
  border: none;
  padding: 4px 10px;
  border-radius: 4px;
  margin-right: 8px;
  cursor: pointer;
  font-size: 12px;
}
.file-name { font-family: var(--mono); font-size: 11px; color: var(--text-muted); padding-left: 2px; }

/* ── XML Paste ─────────────────────────────────────────────────── */
.xml-paste {
  width: 100%;
  background: var(--card2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 10px;
  font-family: var(--mono);
  font-size: 11px;
  resize: vertical;
}
.xml-paste:focus { outline: none; border-color: var(--teal); }

/* ── Workflow ──────────────────────────────────────────────────── */
.workflow {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.workflow h3 { margin-bottom: 16px; font-size: 14px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; }
.steps { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.step {
  display: flex; align-items: center; gap: 10px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  flex: 1; min-width: 160px;
}
.step-num {
  width: 28px; height: 28px;
  background: var(--teal);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
  flex-shrink: 0;
}
.step strong { font-size: 13px; display: block; }
.step span { font-size: 12px; color: var(--text-muted); }
.step-arrow { color: var(--text-dim); font-size: 20px; }

/* ── Status Banner ─────────────────────────────────────────────── */
.status-banner {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-top: 16px;
}
.status-banner.success { background: var(--green-dim); border: 1px solid var(--green); color: var(--green); }
.status-banner.error   { background: #ef44441a; border: 1px solid #ef4444; color: #ef4444; }
.status-banner.info    { background: var(--blue-dim); border: 1px solid var(--blue); color: var(--blue); }

/* ── Stats Bar ─────────────────────────────────────────────────── */
.stats-bar {
  display: flex; gap: 12px; flex-wrap: wrap;
  margin-bottom: 20px;
}
.stat-pill {
  display: flex; align-items: center; gap: 6px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
}
.stat-pill .num { font-weight: 700; font-size: 14px; }
.stat-pill.total .num { color: var(--teal-light); }
.stat-pill.module .num { color: var(--blue); }
.stat-pill.func .num { color: var(--green); }
.stat-pill.table .num { color: var(--slate); }
.stat-pill.system .num { color: var(--amber); }

/* ── Filter Bar ────────────────────────────────────────────────── */
.filter-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-bottom: 16px;
}
.search-input {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 7px 14px;
  font-size: 13px;
  width: 240px;
}
.search-input:focus { outline: none; border-color: var(--teal); }
.filter-chips { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.filter-chips label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.filter-chips input[type=checkbox] { accent-color: var(--teal); }
.chip {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .02em;
}
.chip-module   { background: var(--blue-dim);  color: var(--blue);  border: 1px solid var(--blue); }
.chip-function { background: var(--green-dim); color: var(--green); border: 1px solid var(--green); }
.chip-table    { background: var(--slate-dim); color: var(--slate); border: 1px solid var(--slate); }
.chip-system   { background: var(--amber-dim); color: var(--amber); border: 1px solid var(--amber); }

/* ── Table ─────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  background: var(--card2);
  color: var(--text-muted);
  text-align: left;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--card2); }
tbody td { padding: 9px 14px; vertical-align: top; }

td.el-name {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--teal-light);
  white-space: nowrap;
}
td.field-name { font-weight: 500; min-width: 180px; }
td.type-cell { font-family: var(--mono); font-size: 12px; }
td.desc-cell { color: var(--text-muted); font-size: 12px; max-width: 320px; }
td.size-cell { text-align: right; font-family: var(--mono); font-size: 12px; color: var(--text-muted); }

tr.group-module  td.el-name { color: var(--blue); }
tr.group-function td.el-name { color: var(--green); }
tr.group-table   td.el-name { color: var(--slate); }
tr.group-system  td.el-name { color: var(--amber); }

.row-count { font-size: 12px; color: var(--text-muted); padding: 10px 4px; }

/* ── Generate Page ─────────────────────────────────────────────── */
.gen-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  margin-bottom: 20px;
}
.gen-info { font-size: 13px; color: var(--text-muted); }
.gen-info strong { color: var(--teal-light); }
.gen-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.code-tabs { display: flex; gap: 0; margin-bottom: 0; }
.code-tab-btn {
  background: var(--card2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 20px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all .15s;
  border-bottom: none;
}
.code-tab-btn:first-child { border-radius: var(--radius) 0 0 0; }
.code-tab-btn:last-child  { border-radius: 0 var(--radius) 0 0; }
.code-tab-btn.active { background: var(--card); color: var(--text); border-bottom: 1px solid var(--card); position: relative; z-index: 1; }

.code-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0 var(--radius) var(--radius) var(--radius);
  overflow: auto;
  max-height: 70vh;
}
.code-panel pre { margin: 0; }
.code-panel pre code { font-family: var(--mono); font-size: 12.5px; line-height: 1.6; display: block; padding: 20px; background: transparent !important; }

/* ── Test Page ─────────────────────────────────────────────────── */
.test-layout { display: grid; grid-template-columns: 320px 1fr; gap: 20px; }
@media (max-width: 900px) { .test-layout { grid-template-columns: 1fr; } }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 16px;
}
.panel h3 { font-size: 13px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 14px; }
.panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.panel-header h3 { margin: 0; }
.panel-tall { display: flex; flex-direction: column; }

.op-list { display: flex; flex-direction: column; gap: 8px; }
.op-item {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color .15s;
}
.op-item:hover { border-color: var(--teal); }
.op-item-name { font-family: var(--mono); font-size: 12px; color: var(--teal-light); font-weight: 600; }
.op-item-action { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

.xml-editor {
  width: 100%;
  flex: 1;
  min-height: 200px;
  background: var(--card2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--mono);
  font-size: 12px;
  resize: vertical;
}
.xml-editor:focus { outline: none; border-color: var(--teal); }

.response-box {
  flex: 1;
  min-height: 200px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-muted);
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.badge {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
}
.badge.ok  { background: var(--green-dim); color: var(--green); border: 1px solid var(--green); }
.badge.err { background: #ef44441a; color: #ef4444; border: 1px solid #ef4444; }

.test-log {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--mono);
  font-size: 12px;
  max-height: 240px;
  overflow-y: auto;
  min-height: 80px;
}
.log-entry { padding: 2px 0; }
.log-entry.info  { color: var(--blue); }
.log-entry.ok    { color: var(--green); }
.log-entry.error { color: #ef4444; }
.log-entry.warn  { color: var(--amber); }
.log-entry.muted { color: var(--text-muted); }

.form-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 13px; margin-bottom: 12px; }
.hint { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }

/* ── Library Table ─────────────────────────────────────────────── */
#library-table-wrap { border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; }

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
  padding: 8px 18px;
  border-radius: var(--radius);
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.btn-primary   { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-light); }
.btn-secondary { background: var(--card2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--teal); color: var(--teal-light); }
.btn-danger    { background: #ef44441a; color: #ef4444; border: 1px solid #ef4444; }
.btn-danger:hover { background: #ef444430; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Input ─────────────────────────────────────────────────────── */
.input-full {
  width: 100%;
  background: var(--card2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 13px;
}
.input-full:focus { outline: none; border-color: var(--teal); }

/* ── Empty State ───────────────────────────────────────────────── */
.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 80px 20px;
  text-align: center;
  gap: 12px;
}
.empty-icon { font-size: 40px; }
.empty-state p { color: var(--text-muted); }
.empty-state a { color: var(--teal-light); text-decoration: none; }
.empty-state a:hover { text-decoration: underline; }

/* ── Toast ─────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 28px; right: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px 20px;
  font-size: 13px;
  box-shadow: var(--shadow);
  z-index: 9999;
  max-width: 400px;
  animation: slide-in .2s ease;
}
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error   { border-color: #ef4444; color: #ef4444; }
.toast.info    { border-color: var(--blue); color: var(--blue); }
@keyframes slide-in { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ── Misc ──────────────────────────────────────────────────────── */
.hidden { display: none !important; }
a[data-tab] { color: var(--teal-light); text-decoration: none; cursor: pointer; }
a[data-tab]:hover { text-decoration: underline; }

/* ═══════════════════════════════════════════════════════════════
   FORM BUILDER
═══════════════════════════════════════════════════════════════ */

/* ── Layout ──────────────────────────────────────────────────── */
.fb-layout {
  display: grid;
  grid-template-columns: 230px 1fr 380px;
  gap: 20px;
  align-items: start;
}
@media (max-width: 1200px) {
  .fb-layout { grid-template-columns: 200px 1fr 340px; }
}
@media (max-width: 960px) {
  .fb-layout { grid-template-columns: 1fr; }
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.fb-sidebar { position: sticky; top: 72px; max-height: calc(100vh - 100px); overflow-y: auto; }
.fb-sidebar .panel { margin-bottom: 0; }

/* Module groups */
.fb-mod-group { margin-bottom: 4px; }
.fb-mod-group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  user-select: none;
  transition: background 0.12s;
}
.fb-mod-group-header:hover { background: var(--card3, #2a2d3a); }
.fb-mod-group.expanded .fb-mod-group-header { border-radius: var(--radius) var(--radius) 0 0; }
.fb-mod-group-chevron { font-size: 10px; color: var(--muted); flex-shrink: 0; width: 10px; }
.fb-mod-group-count { margin-left: auto; font-size: 10px; color: var(--muted); background: var(--border); border-radius: 99px; padding: 1px 6px; flex-shrink: 0; }
.fb-mod-group-id {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--teal-light);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.fb-mod-group-desc {
  font-size: 11px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fb-mod-group-lines {
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: hidden;
}
.fb-line-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  cursor: pointer;
  transition: background .12s;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.fb-line-item:last-child { border-bottom: none; }
.fb-line-item:hover { background: var(--card3, #1e2938); }
.fb-line-item.selected { background: var(--teal-dim); }
.fb-line-item.fb-line-request .fb-line-type {
  background: var(--blue-dim);
  color: var(--blue);
}
.fb-line-item.fb-line-request.selected { background: var(--blue-dim); }
.fb-line-type {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  min-width: 28px;
  text-align: center;
  background: rgba(255,255,255,0.05);
  border-radius: 3px;
  padding: 1px 3px;
  flex-shrink: 0;
}
.fb-line-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.fb-line-name { color: var(--text); font-size: 12px; }
.fb-line-desc { color: var(--text-muted); font-size: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fb-line-count { font-size: 10px; color: var(--text-muted); white-space: nowrap; flex-shrink: 0; }

/* Legacy single-item styles (kept for fallback) */
.fb-mod-item {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  margin-bottom: 6px;
}
.fb-mod-item:last-child { margin-bottom: 0; }
.fb-mod-item:hover { border-color: var(--teal); }
.fb-mod-item.selected { border-color: var(--teal); background: var(--teal-dim); }

.fb-mod-id   { font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--teal-light); }
.fb-mod-name { font-size: 12px; color: var(--text); margin-top: 2px; line-height: 1.3; }
.fb-mod-meta { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ── Form Wrap ───────────────────────────────────────────────── */
.fb-form-wrap { min-width: 0; }

/* ── Toolbar ─────────────────────────────────────────────────── */
.fb-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 12px;
}
.fb-toolbar-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; flex-shrink: 0; }

.fb-title-row { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.fb-hdr-id   { font-family: var(--mono); font-size: 16px; font-weight: 700; color: var(--teal-light); }
.fb-hdr-sep  { color: var(--text-dim); }
.fb-hdr-name { font-size: 14px; font-weight: 600; color: var(--text); }
.fb-hdr-line { font-family: var(--mono); font-size: 11px; color: var(--text-muted); background: var(--card2); padding: 2px 7px; border-radius: 4px; border: 1px solid var(--border); }

.fb-meta-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.fb-endpoint { font-family: var(--mono); font-size: 11px; color: var(--text-muted); max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fb-stats-text { font-size: 12px; color: var(--text-dim); }

.fb-dryrun-label {
  display: flex; align-items: center; gap: 6px;
  cursor: pointer; font-size: 13px; color: var(--text);
  background: var(--card2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 6px 12px;
  transition: border-color .15s;
}
.fb-dryrun-label:hover { border-color: var(--amber); }
.fb-dryrun-label input[type=checkbox] { accent-color: var(--amber); }
.fb-dryrun-sub { font-size: 11px; color: var(--text-dim); }

.fb-fill-count {
  font-size: 12px;
  padding: 4px 0 12px 4px;
  min-height: 24px;
}

/* ── Field Groups ────────────────────────────────────────────── */
.fb-group {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 16px;
}
.fb-group:last-child { margin-bottom: 0; }

.fb-group-hdr {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.fb-group-count { font-size: 12px; color: var(--text-dim); }

/* ── Fields Grid ─────────────────────────────────────────────── */
.fb-fields-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

/* ── Individual Field ────────────────────────────────────────── */
.fb-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.fb-field-req .fb-fname::after {
  content: ' *';
  color: var(--amber);
  font-size: 12px;
}

.fb-label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  cursor: default;
}
.fb-fname {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
}
.fb-fmeta {
  display: flex; align-items: center; gap: 5px; flex-wrap: wrap;
}
.fb-el-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--teal-light);
  background: var(--card2);
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--border);
}
.fb-size {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-muted);
}
.fb-req {
  font-size: 10px; font-weight: 600; letter-spacing: .04em;
  padding: 1px 6px; border-radius: 8px;
  background: var(--amber-dim); color: var(--amber); border: 1px solid var(--amber);
}
.fb-opt {
  font-size: 10px; font-weight: 600; letter-spacing: .04em;
  padding: 1px 6px; border-radius: 8px;
  background: var(--slate-dim); color: var(--slate); border: 1px solid var(--border);
}

.fb-hint {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.4;
  padding-left: 1px;
}

.fb-check-row { display: flex; align-items: center; gap: 8px; padding: 6px 0; }
.fb-check-row input[type=checkbox] { accent-color: var(--teal); width: 16px; height: 16px; cursor: pointer; }
.fb-check-lbl { font-size: 13px; color: var(--text-muted); cursor: pointer; }

.fb-input-err { border-color: #ef4444 !important; }

/* ── System Fields Info Block ────────────────────────────────── */
.fb-sys-info { margin-bottom: 10px; }
.fb-sys-row {
  display: flex; align-items: center; gap: 10px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 7px 12px;
  margin-bottom: 6px;
}
.fb-sys-row:last-child { margin-bottom: 0; }
.fb-sys-el   { font-family: var(--mono); font-size: 12px; color: var(--amber); font-weight: 600; }
.fb-sys-note { font-size: 11px; color: var(--text-dim); font-style: italic; }

/* ── Preview / Response Panel ────────────────────────────────── */
.fb-preview-wrap { position: sticky; top: 72px; display: flex; flex-direction: column; gap: 16px; }
@media (max-width: 960px) { .fb-preview-wrap { position: static; } }

.fb-xml-panel, .fb-resp-panel { margin-bottom: 0; }

.fb-xml-pre {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-muted);
  overflow: auto;
  white-space: pre;
  word-break: normal;
  max-height: 320px;
  line-height: 1.5;
}
.fb-resp-pre { max-height: 300px; }

/* ── Parsed Response Summary ─────────────────────────────────── */
.fb-resp-summary {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.fb-resp-row { display: flex; align-items: baseline; gap: 10px; font-size: 13px; }
.fb-resp-key {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  color: var(--text-muted); white-space: nowrap; min-width: 80px;
}
.fb-resp-val { color: var(--text); word-break: break-word; }
.fb-val-ok  { color: var(--green); font-weight: 600; }
.fb-val-err { color: #ef4444; font-weight: 600; }

/* ── Module Library Tab ─────────────────────────────────────── */
.ml-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.ml-filters { display: flex; gap: 12px; flex-wrap: wrap; }
.ml-filter-group { display: flex; align-items: center; gap: 6px; }
.ml-filter-label { font-size: 12px; color: var(--text-muted); white-space: nowrap; }
.ml-count { margin-left: auto; font-size: 12px; color: var(--text-muted); white-space: nowrap; }

.ml-dir-btn, .ml-wsdl-btn {
  background: var(--card2);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.ml-dir-btn.active, .ml-wsdl-btn.active {
  background: var(--teal-dim);
  border-color: var(--teal);
  color: var(--teal-light);
}

#ml-table-wrap { overflow-x: auto; }
#ml-table { width: 100%; border-collapse: collapse; font-size: 13px; }
#ml-table th {
  text-align: left;
  padding: 10px 14px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  background: var(--card2);
}
#ml-table td { padding: 9px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
#ml-table tbody tr:hover { background: var(--card2); }
#ml-table tbody tr.ml-has-wsdl { cursor: pointer; }
#ml-table tbody tr.ml-has-wsdl:hover td:first-child { color: var(--teal-light); }

.badge-dir, .badge-wsdl {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-dir-import { background: var(--blue-dim);  color: var(--blue); }
.badge-dir-export { background: var(--amber-dim); color: var(--amber); }
.badge-dir-query  { background: var(--teal-dim);  color: var(--teal-light); }
.badge-dir-other  { background: var(--slate-dim); color: var(--slate); }
.badge-wsdl-yes   { background: var(--green-dim); color: var(--green); }
.badge-wsdl-no    { background: var(--slate-dim); color: var(--slate); }

/* ── Modal ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 680px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  font-weight: 600;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.modal-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* -- Field Library ----------------------------------------------- */
.fl-toolbar { display:flex; align-items:center; gap:8px; margin-bottom:20px; flex-wrap:wrap; }

.fl-module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.fl-module-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.fl-module-card:hover { border-color: var(--teal); background: var(--card2); }

.fl-module-card-id {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--teal-light);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.fl-module-card-name {
  font-size: 0.92rem;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.3;
}
.fl-module-card-meta {
  display: flex;
  gap: 12px;
  font-size: 0.78rem;
  color: #8b949e;
}
.fl-module-card-meta span { display:flex; align-items:center; gap:4px; }

/* Field detail */
.fl-line-block {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}
.fl-line-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--card2);
  cursor: pointer;
  user-select: none;
}
.fl-line-header:hover { background: #2a3a52; }
.fl-line-id {
  font-weight: 700;
  color: var(--teal-light);
  font-size: 0.85rem;
  min-width: 120px;
}
.fl-line-count { color: #8b949e; font-size: 0.8rem; }
.fl-line-chevron { margin-left:auto; color:#8b949e; transition: transform 0.2s; }
.fl-line-block.open .fl-line-chevron { transform: rotate(90deg); }

.fl-line-body { display:none; }
.fl-line-block.open .fl-line-body { display:block; }

.fl-group-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: #8b949e;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 16px 4px;
  background: rgba(0,0,0,0.15);
}

.fl-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.fl-table th {
  background: #1a2a3a;
  color: #8b949e;
  font-weight: 600;
  text-align: left;
  padding: 7px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.fl-table td {
  padding: 6px 12px;
  border-bottom: 1px solid rgba(45,63,85,0.4);
  color: var(--text);
  vertical-align: top;
}
.fl-table tr:last-child td { border-bottom: none; }
.fl-table tr:hover td { background: rgba(255,255,255,0.03); }

.fl-field-id { color: #8b949e; font-family: monospace; font-size: 0.75rem; }
.fl-field-name { font-weight: 500; }
.fl-field-type-alpha { color: #60a5fa; }
.fl-field-type-num { color: #34d399; }
.fl-field-text { color: #8b949e; font-size: 0.78rem; font-style: italic; }
.fl-badge { display:inline-block; padding:1px 6px; border-radius:4px; font-size:0.72rem; font-weight:600; }
.fl-badge-a { background:#1d3557; color:#60a5fa; }
.fl-badge-n { background:#1a3a2a; color:#34d399; }
.fl-req-badge { display:inline-block; padding:1px 5px; border-radius:3px; font-size:0.68rem; font-weight:700; background:#4a1a1a; color:#f87171; letter-spacing:0.03em; }

.hidden { display: none !important; }

.btn-teal {
  background: var(--teal) !important;
  color: #fff !important;
  border-color: var(--teal) !important;
}
.btn-teal:hover {
  background: var(--teal-light) !important;
  border-color: var(--teal-light) !important;
}

/* ── Query Mode ──────────────────────────────────────────────── */
.fb-query-badge {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--blue-dim);
  color: var(--blue);
  border: 1px solid var(--blue);
  letter-spacing: 0.04em;
  vertical-align: middle;
}

.fb-query-response {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.fb-query-response-hdr {
  padding: 7px 12px;
  background: var(--blue-dim);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.fb-query-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.fb-query-table th {
  text-align: left;
  padding: 6px 10px;
  background: rgba(0,0,0,0.15);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}
.fb-query-table td { padding: 6px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.fb-query-table tr:last-child td { border-bottom: none; }
.fb-query-table tr:hover td { background: rgba(255,255,255,0.03); }
.fb-qr-key {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal-light);
  white-space: nowrap;
  width: 1%;
}
.fb-qr-val { color: var(--text); word-break: break-word; }

/* -- Request Trace Log ----------------------------------------- */
.fb-trace-log {
  display: flex;
  flex-direction: column;
  gap: 8px;
  
  overflow-y: auto;
  padding: 4px 0;
}
.trace-idle {
  color: var(--text-muted);
  font-size: 13px;
  padding: 16px 4px;
  text-align: center;
}
.trace-step {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--card2);
  transition: border-color 0.2s;
}
.trace-step.trace-pending  { border-color: var(--border); }
.trace-step.trace-running  { border-color: #6366f1; }
.trace-step.trace-ok       { border-color: #22c55e66; }
.trace-step.trace-error    { border-color: #ef444466; }
.trace-step.trace-warn     { border-color: #f59e0b66; }

.trace-step-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  cursor: default;
}
.trace-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.trace-label { flex: 1; color: var(--text); }
.trace-status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}
.trace-running .trace-status-dot  { background: #6366f1; animation: pulse 1s infinite; }
.trace-ok      .trace-status-dot  { background: #22c55e; }
.trace-error   .trace-status-dot  { background: #ef4444; }
.trace-warn    .trace-status-dot  { background: #f59e0b; }

.trace-details {
  padding: 8px 12px 10px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.trace-details.hidden { display: none; }

.trace-url {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--primary);
  background: var(--card);
  padding: 4px 8px;
  border-radius: 4px;
  word-break: break-all;
}
.trace-action {
  font-size: 11px;
  color: var(--text-muted);
}
.trace-action code { color: var(--text); }

.trace-http-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
}
.trace-http-badge.ok  { background: #22c55e22; color: #22c55e; border: 1px solid #22c55e44; }
.trace-http-badge.err { background: #ef444422; color: #ef4444; border: 1px solid #ef444444; }

.trace-xml-block {
  font-size: 12px;
  color: var(--text-muted);
}
.trace-xml-block summary {
  cursor: pointer;
  user-select: none;
  padding: 3px 0;
  color: var(--text-muted);
  font-size: 11px;
}
.trace-xml-block summary:hover { color: var(--text); }
.trace-xml {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  font-family: var(--mono);
  font-size: 11px;
  overflow: auto;
  white-space: pre;
  max-height: 400px;
  margin-top: 4px;
  color: var(--text-muted);
  line-height: 1.5;
}
.trace-handle {
  font-size: 12px;
  color: #22c55e;
}
.trace-handle code {
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
}
.trace-error {
  font-size: 12px;
  color: #ef4444;
}
.trace-fatal-error {
  padding: 12px;
  color: #ef4444;
  font-size: 13px;
  background: #ef444411;
  border-radius: var(--radius);
  border: 1px solid #ef444433;
}

/* -- Settings Button ------------------------------------------- */
.settings-btn {
  margin-left: auto;
  padding: 6px 14px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s, color 0.15s;
}
.settings-btn:hover { border-color: var(--primary); color: var(--text); }

/* -- Modal ----------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-overlay.hidden { display: none; }

.modal-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 420px;
  max-width: 95vw;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 16px; font-weight: 600; margin: 0; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.modal-close:hover { background: var(--card2); color: var(--text); }

.modal-body { padding: 20px; display: flex; flex-direction: column; gap: 16px; }

.setting-row { display: flex; flex-direction: column; gap: 6px; }
.setting-row label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.setting-input {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 8px 12px;
  font-size: 14px;
  font-family: var(--mono);
  width: 100%;
  outline: none;
}
.setting-input:focus { border-color: var(--primary); }
.setting-hint {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  background: var(--card2);
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.setting-hint code { color: var(--primary); font-family: var(--mono); }

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
}
.settings-saved { font-size: 13px; color: #22c55e; }
.settings-saved.hidden { display: none; }

.trace-raw-label { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* -- Query Response field labels ------------------------------- */
.fb-qr-tag { display: block; font-family: var(--mono); font-size: 11px; color: var(--primary); }
.fb-qr-desc { display: block; font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* -- New 2-panel layout ---------------------------------------- */
.fb-layout2 {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 16px;
  height: calc(100vh - 64px);
  padding: 16px;
  box-sizing: border-box;
  overflow: hidden;
}
@media (max-width: 768px) {
  .fb-layout2 { grid-template-columns: 1fr; height: auto; }
  .fb-sidebar  { max-height: 240px; }
}

.fb-sidebar { overflow: hidden; display: flex; flex-direction: column; }

.fb-main {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

/* -- Inner tabs ------------------------------------------------ */
.fb-inner-tabs {
  display: flex;
  gap: 2px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  flex-shrink: 0;
}
.fb-inner-tab {
  background: none;
  border: none;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  position: relative;
}
.fb-inner-tab:hover { color: var(--text); }
.fb-inner-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 500; }

.fb-inner-panel { display: flex; flex-direction: column; }
.fb-inner-panel.hidden { display: none !important; }

.fb-results-badge {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 10px;
  margin-left: 4px;
  vertical-align: middle;
}
.fb-results-badge.hidden { display: none; }

/* ── Form Designer ────────────────────────────────────────────────────── */
.fd-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 16px;
  height: calc(100vh - 64px - 64px);
  padding: 16px;
  box-sizing: border-box;
}
@media (max-width: 900px) {
  .fd-layout { grid-template-columns: 1fr; height: auto; }
}

.fd-panel {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.fd-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  overflow-y: auto;
}

/* Module select */
.fd-module-select {
  width: 100%;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 8px 10px;
  font-size: 13px;
  font-family: var(--sans);
  outline: none;
  cursor: pointer;
}
.fd-module-select:focus { border-color: var(--teal); }

/* Field list */
.fd-field-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}
.fd-field-list.hidden { display: none; }

.fd-field-section-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 4px 6px;
  margin-bottom: 2px;
}
.fd-field-hint { font-size: 11px; color: var(--text-dim); font-style: italic; }

.fd-field-items { display: flex; flex-direction: column; gap: 3px; margin-bottom: 4px; }

.fd-field-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: grab;
  transition: border-color 0.12s, background 0.12s;
  user-select: none;
}
.fd-field-item:hover { border-color: var(--teal); background: var(--teal-dim); }
.fd-field-item.fd-field-placed { opacity: 0.45; }
.fd-field-item:active { cursor: grabbing; }

.fd-field-kind-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 4px;
  flex-shrink: 0;
}
.fd-field-input .fd-field-kind-badge { background: var(--blue-dim); color: var(--blue); }
.fd-field-output .fd-field-kind-badge { background: var(--teal-dim); color: var(--teal-light); }

.fd-field-item-info { display: flex; flex-direction: column; min-width: 0; }
.fd-field-item-name {
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.fd-field-item-tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
}

.fd-field-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}
.fd-empty-section {
  padding: 8px;
  font-size: 12px;
  color: var(--text-dim);
  font-style: italic;
}

/* Toolbar */
.fd-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.fd-toolbar-left { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

/* Canvas wrap + empty state */
.fd-canvas-wrap {
  position: relative;
  flex: 1;
  min-height: 220px;
}

.fd-canvas-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  padding: 24px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  pointer-events: none;
}
.fd-canvas-empty.hidden { display: none; }

/* Grid canvas */
.fd-canvas {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 10px;
  min-height: 220px;
  padding: 12px;
  background: var(--card);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.15s, background 0.15s;
}
.fd-canvas:empty { background: transparent; border: none; }
.fd-canvas.fd-drag-over {
  border-color: var(--teal);
  background: var(--teal-dim);
}

/* Canvas cells */
.fd-cell {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: grab;
  transition: border-color 0.12s, box-shadow 0.12s;
  min-width: 0;
}
.fd-cell:active { cursor: grabbing; }
.fd-cell:hover { border-color: var(--teal); }
.fd-cell.fd-cell-dragging { opacity: 0.4; }
.fd-cell.fd-cell-drop-target { border-color: var(--teal); box-shadow: 0 0 0 2px var(--teal-dim); }

.fd-cell-input { border-left: 3px solid var(--blue); }
.fd-cell-output { border-left: 3px solid var(--teal); }

.fd-cell-header {
  display: flex;
  align-items: flex-start;
  gap: 6px;
}
.fd-cell-name {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fd-cell-tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.fd-cell-remove {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  border-radius: 3px;
  flex-shrink: 0;
}
.fd-cell-remove:hover { color: #f87171; background: rgba(248,113,113,0.1); }

.fd-cell-input-field {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 10px;
  font-size: 13px;
  font-family: var(--sans);
  width: 100%;
  outline: none;
}
.fd-cell-input-field:focus { border-color: var(--blue); }

.fd-cell-value {
  min-height: 32px;
  padding: 6px 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--mono);
  color: var(--teal-light);
  word-break: break-all;
}
.fd-cell-placeholder { color: var(--text-dim); font-style: italic; font-family: var(--sans); }

/* Results table */
.fd-results {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.fd-results.hidden { display: none; }
.fd-results-hdr {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  background: var(--card2);
}
.fd-results-count {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
}
.fd-results-table { overflow-x: auto; padding: 12px; }
.fd-results-tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.fd-results-tbl th {
  text-align: left;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}
.fd-results-tbl td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  color: var(--text);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fd-results-tbl tr:hover td { background: var(--card2); }