:root {
  color-scheme: dark;
  --bg: #0a0e17;
  --bg-secondary: rgba(16, 24, 44, 0.85);
  --card: linear-gradient(135deg, rgba(16, 24, 44, 0.85), rgba(10, 14, 28, 0.92));
  --card-solid: #10182c;
  --card-elevated: rgba(16, 24, 44, 0.9);
  --text: #c8d6e5;
  --muted: #6b7a8f;
  --primary: #00d4ff;
  --primary-hover: #00b8e6;
  --accent: #7c4dff;
  --danger: #ff1744;
  --success: #00e676;
  --warn: #ffab00;
  --border: rgba(0, 212, 255, 0.08);
  --border-strong: rgba(0, 212, 255, 0.15);
  --input-bg: #0a0e17;
  --input-border: rgba(0, 212, 255, 0.15);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(0, 212, 255, 0.06);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(0, 212, 255, 0.06);
  --preview-bg: #0a0e17;
  --sig-preview-bg: #f8f6f1;
  --success-bg: rgba(0, 230, 118, 0.08);
  --success-border: rgba(0, 230, 118, 0.18);
  --error-bg: rgba(255, 23, 68, 0.08);
  --error-border: rgba(255, 23, 68, 0.22);
  --control-h: 32px;
  --control-h-sm: 28px;
  --control-radius: 8px;
  --control-font: 13px;
  --control-font-sm: 12px;
  --control-px: 14px;
  --control-px-sm: 10px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.47;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 10px 32px;
}

.header {
  text-align: center;
  margin-bottom: 14px;
}

.header h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.subtitle {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 4px;
}

.steps {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 120px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.step.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.panel {
  display: none;
  background: var(--card);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.panel.active {
  display: block;
}

.panel h2 {
  font-size: 1.15rem;
  margin-bottom: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 700px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.form label {
  display: block;
  margin-bottom: 14px;
  font-size: 0.9rem;
  font-weight: 500;
}

.form input[type="text"],
.form input[type="number"],
.form input:not([type="color"]) {
  display: block;
  width: 100%;
  margin-top: 4px;
  height: var(--control-h);
  padding: 0 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--control-radius);
  font-size: var(--control-font);
  background: var(--input-bg);
  color: var(--text);
}

.form input[type="color"] {
  display: block;
  width: 100%;
  height: var(--control-h);
  margin-top: 4px;
  border: 1px solid var(--border-strong);
  border-radius: var(--control-radius);
  cursor: pointer;
  background: var(--input-bg);
}

.form select {
  display: block;
  width: 100%;
  margin-top: 4px;
  height: var(--control-h);
  padding: 0 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--control-radius);
  font-size: var(--control-font);
  background: var(--input-bg);
  color: var(--text);
}

.field-hint {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--muted);
}

.req {
  color: var(--primary);
}

.preview-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 16px;
  background: var(--preview-bg);
}

.preview-label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.placeholder {
  color: var(--muted);
  font-size: 0.9rem;
}

.seal-preview,
.seal-ref-thumb {
  max-width: 100%;
  max-height: 240px;
}

.seal-ref-thumb {
  max-height: 100px;
  opacity: 0.85;
  margin-bottom: 8px;
  border: 1px dashed var(--border);
  border-radius: 6px;
  padding: 4px;
}

.hidden {
  display: none !important;
}

.btn,
label.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-height: var(--control-h);
  height: var(--control-h);
  padding: 0 var(--control-px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--control-radius);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  font-size: var(--control-font);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  -webkit-appearance: none;
  appearance: none;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn:hover,
label.btn:hover {
  background: rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.2);
}

.btn.primary,
label.btn.primary {
  background: rgba(0, 212, 255, 0.12);
  color: var(--primary);
  border-color: rgba(0, 212, 255, 0.35);
  box-shadow: inset 0 1px 0 rgba(0, 212, 255, 0.08);
}

.btn.primary:hover,
label.btn.primary:hover {
  background: rgba(0, 212, 255, 0.18);
  border-color: rgba(0, 212, 255, 0.45);
}

.btn:disabled,
label.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-sm {
  min-height: var(--control-h-sm);
  height: var(--control-h-sm);
  padding: 0 var(--control-px-sm);
  font-size: var(--control-font-sm);
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  justify-content: flex-end;
}

.panel-desc {
  color: var(--muted);
  margin: -8px 0 20px;
  font-size: 0.95rem;
}

.sig-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
}

.sig-form input[type="text"],
.sig-form input[type="number"],
.sig-form select {
  height: var(--control-h);
  padding: 0 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--control-radius);
  font-size: var(--control-font);
  background: var(--input-bg);
  color: var(--text);
}

.sig-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}

.sig-preview-box .sig-preview-stage {
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #f8f6f1;
  border: 1px dashed var(--border);
  border-radius: 8px;
}

.sig-preview {
  max-width: 100%;
  max-height: 140px;
  object-fit: contain;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 40px;
  text-align: center;
  color: var(--muted);
  transition: border-color 0.2s, background 0.2s;
}

.upload-zone.dragover {
  border-color: var(--primary);
  background: rgba(0, 122, 255, 0.06);
}

.link-btn {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  text-decoration: underline;
  font-size: inherit;
}

.pdf-meta {
  margin-top: 20px;
}

.pdf-meta .field-hint.warn {
  color: #b45309;
}

.pdf-extract-details {
  margin-top: 12px;
  font-size: 0.9rem;
}

.pdf-extract-details pre {
  margin: 8px 0 0;
  padding: 10px;
  max-height: 160px;
  overflow: auto;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 6px;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 0.85rem;
}

.pdf-meta label {
  display: block;
  margin-top: 12px;
  font-weight: 500;
}

.pdf-meta input {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.toolbar label {
  font-size: 0.9rem;
  font-weight: 500;
}

.toolbar select {
  margin-left: 8px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

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

.pdf-pages {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-wrap {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.page-label {
  padding: 6px 10px;
  background: var(--card-elevated);
  font-size: 0.78rem;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

.page-canvas-wrap {
  position: relative;
  display: block;
  width: 100%;
  background: var(--preview-bg);
  line-height: 0;
  touch-action: none;
}

.overlay-missing-hint {
  margin: 0;
  padding: 10px 12px;
  background: #fffbeb;
  border-bottom: 1px solid #fcd34d;
}

.page-canvas-wrap canvas,
.page-canvas-wrap .pdf-preview-img {
  display: block;
  position: relative;
  z-index: 0;
  width: 100%;
  height: auto;
  image-rendering: auto;
}

.placement-guide {
  margin: 8px 0 12px;
  padding: 10px 12px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
}

.page-nav-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin-bottom: 8px;
}

.scan-preview-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.preview-nav-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-left: auto;
}

.preview-save-btn {
  white-space: nowrap;
}

.preview-panel > .preview-result-hint {
  margin: -4px 0 8px;
}

.scan-preview-toggle {
  font-size: 0.82rem;
  white-space: nowrap;
}

.scan-preview-strength-field {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  min-width: 0;
}

.scan-preview-strength-field input[type="range"] {
  width: 88px;
  max-width: 28vw;
}

.scan-preview-strength-field .range-val {
  min-width: 2.8em;
  text-align: right;
  color: var(--muted);
  font-size: 0.8rem;
}

.page-nav-bar.hidden {
  display: none;
}

.page-nav-group {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-jump-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
}

.page-jump-wrap select {
  height: var(--control-h-sm);
  padding: 0 8px;
  border: 1px solid var(--border-strong);
  border-radius: var(--control-radius);
  font-size: var(--control-font-sm);
  background: var(--input-bg);
  color: var(--text);
}

.page-indicator {
  font-size: var(--control-font-sm);
  color: var(--muted);
  min-width: 72px;
  text-align: center;
}

.slot-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding: 6px 8px;
  background: var(--card-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.slot-toolbar-label {
  font-size: 0.9rem;
  font-weight: 600;
}

.btn-add {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
  min-width: var(--control-h-sm);
  font-size: var(--control-font-sm);
  box-shadow: none;
}

.btn-del {
  background: rgba(255, 255, 255, 0.04);
  color: var(--danger);
  border-color: var(--error-border);
  min-width: var(--control-h-sm);
  font-size: var(--control-font-sm);
}

.btn-add:hover:not(:disabled) {
  background: #2db84d;
  border-color: #2db84d;
}

.btn-del:hover:not(:disabled) {
  background: var(--error-bg);
  border-color: var(--danger);
}

.slot-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.slot-chip {
  display: inline-flex;
  align-items: center;
  height: var(--control-h-sm);
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--card);
  font-size: var(--control-font-sm);
  cursor: pointer;
  color: var(--text);
}

.slot-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.slot-chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.placement-status {
  margin: 8px 0;
  padding: 8px 10px;
  background: var(--card-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--muted);
}

.placement-advanced {
  margin: 12px 0 16px;
  font-size: 0.9rem;
}

.placement-advanced summary {
  cursor: pointer;
  color: var(--muted);
  user-select: none;
}

.placement-readout {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: var(--control-font-sm);
  line-height: 1.6;
  color: var(--muted);
}

.overlay {
  position: absolute;
  cursor: grab;
  user-select: none;
  border: 2px dashed transparent;
  touch-action: none;
  background: none;
  pointer-events: auto;
  box-sizing: border-box;
}

.overlay.dragging {
  cursor: grabbing;
}

.overlay:hover,
.overlay.active {
  border-color: rgba(255, 23, 68, 0.55);
}

.overlay.signature:hover,
.overlay.signature.active {
  border-color: rgba(0, 212, 255, 0.55);
}

.overlay-label {
  position: absolute;
  top: -22px;
  left: 0;
  padding: 2px 8px;
  font-size: 11px;
  line-height: 1.4;
  color: #fff;
  background: rgba(29, 29, 31, 0.78);
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
}

.overlay:hover .overlay-label,
.overlay.active .overlay-label,
.overlay.dragging .overlay-label {
  opacity: 1;
}

.overlay.seal {
  z-index: 50;
  background: transparent;
  border-color: transparent;
}

.overlay.seal:hover,
.overlay.seal.active,
.overlay.seal.dragging {
  border-color: rgba(255, 23, 68, 0.45);
}

.overlay.signature {
  z-index: 10;
  background: transparent;
}

.overlay.seal img {
  background: transparent;
}

.overlay .rotate-handle {
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--success);
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  cursor: grab;
  pointer-events: auto;
  opacity: 0;
  transition: opacity 0.15s;
}

.overlay.seal:hover .rotate-handle,
.overlay.seal.active .rotate-handle,
.overlay.seal.dragging .rotate-handle {
  opacity: 1;
}

.overlay.seal .rotate-handle:active {
  cursor: grabbing;
}

.overlay img {
  width: 100%;
  height: 100%;
  pointer-events: none;
  display: block;
  object-fit: contain;
  background: transparent;
}

.overlay .resize-handle {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--primary);
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  pointer-events: auto;
  opacity: 0;
  transition: opacity 0.15s;
}

.overlay:hover .resize-handle,
.overlay.active .resize-handle,
.overlay.dragging .resize-handle {
  opacity: 1;
}

.overlay .resize-handle.nw {
  top: -7px;
  left: -7px;
  cursor: nwse-resize;
}

.overlay .resize-handle.ne {
  top: -7px;
  right: -7px;
  cursor: nesw-resize;
}

.overlay .resize-handle.sw {
  bottom: -7px;
  left: -7px;
  cursor: nesw-resize;
}

.overlay .resize-handle.se {
  right: -7px;
  bottom: -7px;
  cursor: nwse-resize;
}

.placement-panel {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.placement-panel fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin: 0;
}

.placement-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.placement-grid label {
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.placement-grid input {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.9rem;
}

.card {
  background: var(--card);
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 14px;
  padding: 12px 14px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* --- 模板栏 --- */
.template-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  align-items: flex-end;
  margin-bottom: 12px;
  padding: 12px 14px !important;
}

.template-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 140px;
}

.template-field span {
  color: var(--muted);
}

.template-field select,
.template-field input {
  height: var(--control-h);
  padding: 0 10px;
  border: 1px solid var(--input-border);
  border-radius: var(--control-radius);
  font-size: var(--control-font);
  background: var(--input-bg);
  color: var(--text);
  min-width: 140px;
}

.template-field-grow {
  flex: 1;
  min-width: 180px;
}

.template-field-grow select {
  width: 100%;
  min-width: 0;
}

.template-manage-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.template-manage-overlay.hidden {
  display: none;
}

.template-manage-modal {
  background: var(--card);
  border-radius: 14px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 420px;
  max-height: 88vh;
  overflow-y: auto;
  padding: 16px;
}

.template-manage-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.template-manage-head h3 {
  margin: 0;
  font-size: 1.05rem;
}

.template-manage-close {
  min-width: 36px;
  padding: 0 10px;
  font-size: 1.25rem;
  line-height: 1;
}

.template-manage-modal .form-field {
  margin-bottom: 12px;
}

.template-manage-modal select[size] {
  min-height: 140px;
}

.template-manage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.template-manage-hint {
  margin: 12px 0 0;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.45;
}

.template-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.template-bar-hint {
  flex: 1 1 100%;
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
}

.template-load-hint {
  flex: 1 1 100%;
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
}

.template-load-hint.error {
  color: #f87171;
}

.btn-danger-soft {
  color: var(--danger);
  border-color: var(--error-border);
}

.btn-danger-soft:hover {
  background: var(--error-bg);
  border-color: var(--danger);
}

/* --- 主布局：左设置 + 右预览 --- */
.workspace {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 12px;
  align-items: start;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.side-card {
  background: var(--card);
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 14px;
  padding: 12px 14px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.side-card h2 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.side-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.side-hint {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 14px;
  line-height: 1.5;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  font-weight: 500;
}

.form-field span {
  color: var(--text);
}

.form-field input[type="text"],
.form-field input[type="search"],
.form-field input[type="number"],
.form-field select {
  width: 100%;
  height: var(--control-h);
  padding: 0 10px;
  border: 1px solid var(--input-border);
  border-radius: var(--control-radius);
  font-size: var(--control-font);
  background: var(--input-bg);
  color: var(--text);
}

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.form-grid-3 .form-field {
  margin-bottom: 0;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-grid-2 .form-field {
  margin-bottom: 0;
}

.btn-block {
  width: 100%;
  margin-top: 14px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  align-items: center;
}

.btn-row .btn {
  flex: 1;
  min-width: 120px;
}

.seal-source-tabs {
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  background: rgba(118, 118, 128, 0.12);
  border-radius: 8px;
}

.seal-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-h-sm);
  height: var(--control-h-sm);
  padding: 0 12px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: var(--control-font-sm);
  font-weight: 500;
  color: var(--muted);
  transition: background 0.15s, box-shadow 0.15s, color 0.15s;
}

.seal-tab:hover {
  color: var(--text);
}

.seal-tab.active {
  background: rgba(0, 212, 255, 0.12);
  color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(0, 212, 255, 0.25);
}

.mini-preview {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  max-width: 100%;
  padding: 12px;
  box-sizing: content-box;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  background: #ffffff;
  overflow: hidden;
}

.mini-preview .seal-preview {
  display: block;
  width: auto;
  height: auto;
  max-width: 200px;
  max-height: 200px;
  object-fit: contain;
}

.mini-preview .placeholder {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.seal-style-bar {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  margin-bottom: 8px;
}

.seal-style-field {
  flex: 1;
  min-width: 0;
}

.seal-live-field {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--muted);
  cursor: pointer;
}

.seal-live-field input {
  margin: 0;
}

.seal-opacity-field {
  margin-top: 12px;
}

.seal-opacity-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.seal-opacity-row input[type="range"] {
  flex: 1;
}

.seal-opacity-row .range-val {
  min-width: 3em;
  text-align: right;
  color: var(--muted);
  font-size: 0.9rem;
}

.seal-library-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  min-height: 48px;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.seal-library-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  width: 100%;
  padding: 10px 14px;
  border: none;
  border-bottom: 1px solid var(--border);
  background: var(--card-solid);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font-size: 0.9rem;
}

.upload-zone {
  position: relative;
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
  color: var(--muted);
  margin-bottom: 10px;
  transition: border-color 0.2s, background 0.2s;
}

.pdf-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  opacity: 0;
}

.pdf-upload-label {
  display: flex;
  margin-top: 0;
  cursor: pointer;
}

.upload-btn-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.upload-btn-row .pdf-upload-label {
  width: 100%;
  justify-content: center;
}

.upload-zone.is-loading {
  opacity: 0.85;
}

.upload-zone.is-loading .upload-btn-row,
.upload-zone.is-loading .pdf-upload-label {
  pointer-events: none;
}

.upload-lead {
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.pdf-meta {
  margin-bottom: 10px;
  padding: 8px 10px;
  background: var(--card-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.82rem;
  line-height: 1.5;
}

.pdf-meta strong {
  color: var(--text);
  font-weight: 500;
}

.pdf-meta p {
  margin: 0 0 4px;
}

.pdf-meta p:last-child {
  margin-bottom: 0;
}

.output-hint {
  margin-top: 12px;
}

.preview-panel {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  min-height: 360px;
  border: 1px solid var(--border);
}

.preview-head {
  margin-bottom: 8px;
}

.preview-head h2 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 2px;
}

.preview-head .side-hint {
  margin: 0;
}

.preview-action-bar,
.preview-export-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 8px;
  padding: 8px 10px;
  background: var(--card-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.preview-action-bar .btn.primary,
.preview-export-bar .btn.primary {
  min-width: 9rem;
}

.preview-result-hint {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  flex: 1 1 12rem;
}

.preview-result-hint.error {
  color: #dc2626;
}

.slot-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  margin-bottom: 8px;
  padding: 6px 8px;
  background: var(--card-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.slot-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  margin-right: 4px;
}

.placement-readout-block {
  padding: 10px 12px;
  background: var(--card-elevated);
  border-radius: 8px;
  font-size: 0.85rem;
}

.readout-label {
  display: block;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
  font-size: 0.8rem;
}

.placement-readout {
  font-family: ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--text);
  word-break: break-all;
}

.placement-advanced {
  margin-top: 14px;
}

.placement-advanced summary {
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  padding: 8px 0;
}

.seal-library-item:last-child {
  border-bottom: none;
}

.seal-library-item:hover {
  background: var(--bg-secondary);
}

.seal-library-item.selected {
  background: rgba(0, 122, 255, 0.08);
}

.seal-library-item strong {
  font-size: 0.9rem;
  color: var(--text);
}

.seal-library-item span {
  color: var(--muted);
  font-size: 0.75rem;
}

.image-lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.image-lightbox-modal {
  background: var(--card);
  border-radius: 12px;
  max-width: min(96vw, 720px);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.image-lightbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.image-lightbox-body {
  padding: 12px;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1a1a1a;
}

.image-lightbox-body img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
}

.page-canvas-wrap .pdf-preview-img {
  cursor: zoom-in;
}

.upload-zone.compact {
  min-height: auto;
  padding: 16px;
  margin-bottom: 12px;
}

.pdf-url-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.pdf-url-row input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.8125rem;
}

.pdf-url-row + .btn-block {
  margin-bottom: 8px;
}

.sig-dual-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}

.sig-mini {
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
  min-height: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--sig-preview-bg);
}

.sig-mini .placeholder {
  color: #8a8a8a;
}

.sig-mini-label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.sig-name-row {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  margin-bottom: 14px;
}

.sig-name-row .form-field {
  flex: 1;
  min-width: 0;
  margin-bottom: 0;
}

.sig-party-font-row {
  align-items: flex-start;
}

.sig-party-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sig-font-field {
  margin-bottom: 0;
}

.sig-font-field .sig-font-select,
.sig-font-select {
  width: 100%;
}

.sig-date-text-row {
  margin-top: 14px;
}

.sig-date-hint {
  margin: 0 0 10px;
  font-size: 0.75rem;
  line-height: 1.45;
}

.overlay.signature.date-a,
.overlay.signature.date-b {
  z-index: 13;
  min-width: 72px;
  min-height: 28px;
}

.overlay.signature.date-b {
  z-index: 14;
}

.sig-mini .sig-preview {
  max-height: 56px;
  max-width: 100%;
  object-fit: contain;
}

.overlay.signature.party-a {
  z-index: 11;
}

.overlay.signature.party-b {
  z-index: 12;
}

@media (pointer: coarse) {
  .rotate-handle {
    display: none;
  }

  .overlay .resize-handle {
    display: none;
  }

  .overlay-label {
    display: none !important;
  }

  .overlay.active {
    border-color: rgba(255, 23, 68, 0.35);
  }

  .overlay.signature.active {
    border-color: rgba(0, 212, 255, 0.35);
  }
}

@media (max-width: 960px) {
  :root {
    --control-h: 44px;
    --control-h-sm: 38px;
    --control-font: 15px;
    --control-font-sm: 13px;
  }

  body.is-mobile {
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .app {
    padding: 6px 6px calc(72px + env(safe-area-inset-bottom, 0));
  }

  .header {
    margin-bottom: 8px;
  }

  .header h1 {
    font-size: 1rem;
  }

  .template-bar {
    padding: 10px 12px !important;
    margin-bottom: 8px;
  }

  .workspace {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .sidebar {
    order: 2;
    gap: 6px;
  }

  .preview-panel {
    order: 1;
    min-height: 0;
    padding: 8px;
  }

  .preview-head h2 {
    font-size: 0.92rem;
  }

  .page-nav-bar {
    position: sticky;
    top: 0;
    z-index: 30;
    gap: 4px;
    margin-bottom: 6px;
    padding: 6px 8px;
    background: var(--card-solid);
    border: 1px solid var(--border);
    border-radius: 8px;
  }

  .page-nav-group .btn {
    flex: 1;
    min-width: 0;
  }

  .page-jump-wrap {
    font-size: 0.8rem;
  }

  .scan-preview-controls {
    flex: 1 1 auto;
    justify-content: flex-start;
  }

  .preview-nav-actions {
    flex: 1 1 100%;
    margin-left: 0;
    justify-content: space-between;
  }

  .preview-save-btn {
    flex-shrink: 0;
    min-height: 40px;
    font-weight: 600;
  }

  .scan-preview-strength-field input[type="range"] {
    flex: 1;
    width: auto;
    max-width: none;
  }

  .preview-action-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    margin: 0;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0));
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
    background: rgba(10, 14, 23, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.45);
  }

  body.is-mobile .preview-action-bar:not(.hidden) {
    display: flex;
  }

  .preview-action-bar .btn.primary {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    font-size: 16px;
    font-weight: 600;
  }

  .preview-result-hint {
    width: 100%;
    text-align: center;
    font-size: 0.78rem;
  }

  .side-card {
    padding: 10px 12px;
  }

  .side-card h2 {
    font-size: 0.92rem;
  }

  .upload-zone {
    padding: 10px;
  }

  .sig-mini-label {
    display: none;
  }

  .sig-dual-preview {
    gap: 6px;
  }

  .page-canvas-wrap {
    touch-action: manipulation;
  }

  .pdf-pages {
    gap: 8px;
  }

  .result-box {
    font-size: 0.82rem;
    padding: 10px;
  }

  body.is-mobile #process-btn {
    display: none !important;
  }

  body.is-mobile .page-label {
    display: none;
  }
}

@media (max-width: 520px) {
  .form-grid-2,
  .form-grid-3 {
    grid-template-columns: 1fr;
  }

  .template-field,
  .template-name-field {
    width: 100%;
  }

  .template-actions {
    width: 100%;
  }

  .template-actions .btn {
    flex: 1;
  }

  .btn-row {
    flex-direction: column;
  }

  .btn-row .btn {
    width: 100%;
  }
}

.result-box {
  margin-top: 12px;
  padding: 12px;
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text);
}

.result-box.error {
  background: var(--error-bg);
  border-color: var(--error-border);
}

.result-box ul {
  margin-top: 8px;
  padding-left: 20px;
}

.result-box code {
  font-size: 0.85rem;
  word-break: break-all;
}

.advanced-panel {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 10px 10px;
  background: var(--card-elevated);
}

.advanced-panel summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 12px 0;
  user-select: none;
}

.advanced-grid.compact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 360px;
  overflow-y: auto;
  padding-right: 4px;
}

.advanced-grid.compact .adv-block {
  border: 1px solid var(--border);
  border-radius: var(--control-radius);
  padding: 8px 10px;
  background: rgba(0, 0, 0, 0.15);
  margin: 0;
}

.advanced-grid.compact .adv-block-wide {
  grid-column: auto;
}

.advanced-grid.compact legend {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  padding: 0 4px;
  margin-bottom: 4px;
}

.adv-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: center;
}

.adv-row + .adv-row {
  margin-top: 6px;
}

.adv-row label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  margin: 0;
  white-space: nowrap;
}

.adv-row label.chk {
  gap: 4px;
}

.adv-row input[type="number"],
.adv-row select {
  width: 58px;
  height: 26px;
  padding: 0 6px;
  margin: 0;
  border: 1px solid var(--input-border);
  border-radius: 6px;
  font-size: 12px;
  background: var(--input-bg);
  color: var(--text);
}

.adv-row select {
  width: auto;
  min-width: 64px;
}

.adv-row input[type="range"] {
  width: 72px;
  margin: 0 4px;
}

.advanced-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 4px;
}

.advanced-grid fieldset {
  border: 1px solid var(--border);
  border-radius: var(--control-radius);
  padding: 10px;
  background: var(--card);
}

.advanced-grid legend {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0 4px;
}

.advanced-grid label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.advanced-grid label.chk {
  display: flex;
  align-items: center;
  gap: 6px;
}

.advanced-grid input[type="number"],
.advanced-grid select {
  display: block;
  width: 100%;
  margin-top: 2px;
  height: var(--control-h-sm);
  padding: 0 8px;
  border: 1px solid var(--border-strong);
  border-radius: var(--control-radius);
  font-size: var(--control-font-sm);
  background: var(--input-bg);
  color: var(--text);
}

.advanced-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.btn-file {
  cursor: pointer;
  display: inline-block;
}

.btn-file input {
  display: none;
}

#step-1 .grid-2 {
  align-items: start;
}

#step-1 .form {
  max-height: 85vh;
  overflow-y: auto;
  padding-right: 4px;
}

.gallery-save-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 12px;
}

.gallery-save-modal {
  background: var(--card);
  border-radius: 14px 14px 0 0;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 480px;
  max-height: 88vh;
  overflow-y: auto;
  padding: 16px;
}

.gallery-save-modal h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.gallery-save-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 12px 0;
}

.gallery-save-item {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.gallery-save-item img {
  display: block;
  width: 100%;
  height: auto;
  -webkit-touch-callout: default;
  user-select: auto;
}

.gallery-save-item figcaption {
  padding: 6px 10px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.gallery-save-actions {
  display: flex;
  gap: 8px;
  padding-top: 4px;
}

.gallery-save-actions .btn {
  flex: 1;
}

.gallery-save-fullscreen {
  align-items: stretch;
  padding: 0;
}

.gallery-save-fs {
  border-radius: 0;
  max-width: none;
  max-height: 100vh;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.gallery-save-fs-header {
  flex-shrink: 0;
  padding-bottom: 8px;
}

.gallery-save-fs-body {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1a1a1a;
  min-height: 50vh;
}

.gallery-save-fs-body img {
  max-width: 100%;
  max-height: 65vh;
  height: auto;
  -webkit-touch-callout: default;
  user-select: auto;
}

.gallery-save-fs .gallery-save-actions {
  flex-shrink: 0;
  flex-wrap: wrap;
  padding-top: 10px;
}