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

.fb [hidden] { display: none !important; }

/* ── Upload State ── */
.fb-upload {
  max-width: 36rem;
  margin: 0 auto;
  padding: 4rem 1rem;
  text-align: center;
}

.fb-upload h1 {
  font-size: 2.4rem;
  margin: 0 0 0.5rem;
}

.fb-upload-subtitle {
  color: var(--text-light);
  font-size: 1rem;
  margin: 0 0 2.5rem;
  line-height: 1.6;
}

.fb-drop {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 3rem 2rem;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}

.fb-drop.drag-over {
  border-color: var(--success);
  background: var(--accent-glow);
}

.fb-drop-icon {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.fb-drop-text {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.fb-drop-hint {
  color: var(--text-light);
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
}

.fb-drop-btn {
  background: var(--success);
  color: var(--success-foreground);
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.fb-drop-btn:hover {
  opacity: 0.85;
}

.fb-drop-privacy {
  color: var(--text-light);
  font-size: 0.8rem;
  margin: 1.25rem 0 0;
}

.fb-error {
  color: var(--danger);
  font-size: 0.9rem;
  margin-top: 1rem;
}

/* ── Builder State ── */
.fb-builder {
  display: flex;
  overflow: hidden;
  flex: 1;
}

.fb {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

.fb ~ footer {
  margin-top: 0;
}

/* ── Sidebar ── */
.fb-sidebar {
  width: 280px;
  flex-shrink: 0;
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.fb-sidebar-section {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.fb-sidebar-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-light);
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}

.fb-sidebar-hint {
  font-size: 0.75rem;
  color: var(--text-light);
  margin: 0.5rem 0 0;
}

.fb-esign-note {
  font-size: 0.88rem;
  color: var(--text);
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 4px;
  padding: 0.75rem 0.85rem;
  margin: 0.75rem 0 0;
  line-height: 1.5;
}

.fb-esign-note a {
  display: inline-block;
  margin-top: 0.4rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.fb-field-types {
  display: flex;
  gap: 0.5rem;
}

.fb-type-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.6rem 0.4rem;
  border: 2px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.fb-type-btn:hover {
  border-color: var(--text-light);
}

.fb-type-btn.active {
  border-color: var(--success);
  background: var(--success-bg);
  color: var(--success-text);
}

.fb-type-icon {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
}

.fb-field-types-row2 {
  margin-top: 0.5rem;
}

.fb-type-btn-full {
  width: 100%;
  flex-direction: row;
  justify-content: center;
}

/* ── Field List ── */
.fb-sidebar-fields {
  flex: 1;
  overflow-y: auto;
  border-bottom: none;
}

.fb-field-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.fb-field-entry {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem;
  transition: border-color 0.15s;
}

.fb-field-entry.selected {
  border-color: var(--danger);
  border-width: 2px;
  padding: calc(0.6rem - 1px);
  background: rgba(175, 48, 41, 0.06);
  box-shadow: 0 0 0 2px var(--danger);
}

.fb-field-entry.type-text {
  background: #f0f5ff;
  border-color: #c8d8f0;
}

.fb-field-entry.type-checkbox {
  background: #f0f8f0;
  border-color: #c0dcc0;
}

.fb-field-entry.type-signature {
  background: #f3f0ff;
  border-color: #c8c0e8;
}

.fb-field-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.fb-field-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.fb-field-entry.type-text .fb-field-badge { color: #3b6baa; }
.fb-field-entry.type-checkbox .fb-field-badge { color: #3a7a3a; }
.fb-field-entry.type-signature .fb-field-badge { color: #6b4fa0; }

.fb-field-page {
  font-size: 0.7rem;
  color: var(--text-light);
}

.fb-field-name {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.4rem;
  font-size: 0.8rem;
  font-family: monospace;
  box-sizing: border-box;
  background: #fff;
}

.fb-field-name.invalid {
  border-color: var(--danger);
  outline-color: var(--danger);
}

.fb-field-remove {
  display: block;
  margin-top: 0.35rem;
  text-align: right;
  font-size: 0.75rem;
  color: var(--danger);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.fb-field-remove:hover {
  text-decoration: underline;
}

/* ── CTA in sidebar ── */
.fb-sidebar-cta {
  border-bottom: none;
}

.fb-cta-card {
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  text-align: center;
}

.fb-cta-text {
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
}

.fb-cta-link {
  font-size: 0.8rem;
  font-weight: 600;
}

/* ── Download Button ── */
.fb-sidebar-download {
  border-bottom: none;
}

.fb-download-btn {
  width: 100%;
  background: var(--success);
  color: var(--success-foreground);
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.fb-download-btn:hover:not(:disabled) {
  opacity: 0.85;
}

.fb-download-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Main Area ── */
.fb-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.fb-page-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.fb-page-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.6rem;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text);
  line-height: 1;
}

.fb-page-btn:hover:not(:disabled) {
  border-color: var(--text-light);
}

.fb-page-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

/* ── Canvas Area ── */
.fb-canvas-area {
  flex: 1;
  background: var(--bg);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 1.5rem;
  overflow: auto;
}

.fb-canvas-wrap {
  position: relative;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  line-height: 0;
}

.fb-canvas-wrap canvas {
  display: block;
}

/* ── Overlay ── */
.fb-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.fb-overlay.crosshair {
  cursor: crosshair;
}

/* ── Drag Preview ── */
.fb-drag-preview {
  position: absolute;
  border: 2px dashed var(--success);
  background: rgba(102, 128, 11, 0.08);
  pointer-events: none;
}

/* ── Field Overlays ── */
.fb-field-overlay {
  position: absolute;
  border: 2px dashed #3b6baa;
  background: rgba(59, 107, 170, 0.08);
  border-radius: 2px;
  cursor: move;
  box-sizing: border-box;
}

.fb-field-overlay.type-checkbox {
  border-color: #3a7a3a;
  background: rgba(58, 122, 58, 0.08);
}

.fb-field-overlay.type-signature {
  border-color: #6b4fa0;
  background: rgba(107, 79, 160, 0.08);
}

.fb-field-overlay.selected {
  border-style: solid;
  border-color: var(--danger);
  background: rgba(175, 48, 41, 0.08);
}

.fb-field-overlay-label {
  position: absolute;
  top: 1px;
  left: 3px;
  font-size: 0.65rem;
  font-weight: 600;
  color: #3b6baa;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 14px);
}

.fb-field-overlay.type-checkbox .fb-field-overlay-label {
  color: #3a7a3a;
}

.fb-field-overlay.type-signature .fb-field-overlay-label {
  color: #6b4fa0;
}

/* ── Existing Field Markers ── */
.fb-existing-field {
  position: absolute;
  border: 1px solid rgba(150, 120, 80, 0.4);
  background: rgba(150, 120, 80, 0.06);
  border-radius: 1px;
  pointer-events: none;
  box-sizing: border-box;
}

.fb-existing-field-label {
  position: absolute;
  top: -1px;
  left: 2px;
  font-size: 0.55rem;
  color: rgba(150, 120, 80, 0.7);
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 4px);
}

.fb-resize-handle {
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 1px;
  cursor: se-resize;
}