.gwbk-extract {
  --bg: #f3f4f6;
  --surface: #ffffff;
  --sunken: #f7f8fa;
  --border: #e2e5ea;
  --border-strong: #c9cfd8;
  --text: #1c2330;
  --muted: #5c6775;
  --accent: #c45e12;
  --accent-soft: #fff1e6;
  --ok: #1f7a4d;
  --ok-bg: #e8f6ee;
  --warn: #8a5a00;
  --warn-bg: #fff6e0;
  --err: #b42318;
  --err-bg: #fdecea;
  --info-bg: #eaf2fb;
  --info: #1d4f8a;
  --shadow: 0 1px 2px rgba(28, 35, 48, 0.06);
  --radius: 10px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 "Segoe UI", system-ui, sans-serif;
}

.shell-main.gwbk-page {
  margin: 0;
  padding: 0;
  border: none;
  box-shadow: none;
  border-radius: 0;
  background: transparent;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

body[data-shell-active] .shell-main.gwbk-page {
  padding: 0;
}

.shell-main.gwbk-page .tool-page-header,
.shell-main.gwbk-page .tool-lead {
  display: none;
}

body.gwbk-extract-app {
  overflow: hidden;
  height: 100vh;
  max-height: 100dvh;
}

body.gwbk-extract-app .shell-footer {
  display: none;
}

body.gwbk-extract-app .shell-body {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.gwbk-extract .top {
  display: flex;
  align-items: center;
  gap: 16px 24px;
  flex-wrap: wrap;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex: none;
}

.gwbk-extract .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.gwbk-extract .mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: linear-gradient(135deg, #f08a2a, #c45e12);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  flex: none;
}

.gwbk-extract h1 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.gwbk-extract .lede {
  margin: 1px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.gwbk-extract .drop {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--sunken);
  cursor: pointer;
  flex: 1;
  min-width: 240px;
}

.gwbk-extract .drop:hover,
.gwbk-extract .drop.dragover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.gwbk-extract .drop strong {
  color: var(--accent);
}

.gwbk-extract .drop .icon {
  display: none;
}

.gwbk-extract:not(.has-file) {
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 32px 16px;
}

.gwbk-extract:not(.has-file) .top {
  flex-direction: column;
  align-items: center;
  width: min(480px, 100%);
  background: transparent;
  border: 0;
  padding: 0;
  gap: 22px;
}

.gwbk-extract:not(.has-file) .brand {
  flex-direction: column;
  text-align: center;
  min-width: 0;
  gap: 12px;
}

.gwbk-extract:not(.has-file) .mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.gwbk-extract:not(.has-file) h1 {
  font-size: 1.55rem;
}

.gwbk-extract:not(.has-file) .lede {
  font-size: 0.95rem;
  max-width: 38ch;
}

.gwbk-extract:not(.has-file) .drop {
  width: 100%;
  min-height: 220px;
  flex-direction: column;
  text-align: center;
  background: var(--surface);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(28, 35, 48, 0.06);
}

.gwbk-extract:not(.has-file) .drop .icon {
  display: block;
  font-size: 2rem;
}

.gwbk-extract:not(.has-file) .status {
  width: min(480px, 100%);
  border: 0;
  border-radius: 10px;
  text-align: center;
}

.gwbk-extract .meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  color: var(--muted);
  font-size: 0.85rem;
}

.gwbk-extract .meta b {
  color: var(--text);
  font-weight: 600;
}

.gwbk-extract .status {
  margin: 0;
  padding: 8px 20px;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
}

.gwbk-extract .status.info {
  background: var(--info-bg);
  color: var(--info);
}

.gwbk-extract .status.ok {
  background: var(--ok-bg);
  color: var(--ok);
}

.gwbk-extract .status.err {
  background: var(--err-bg);
  color: var(--err);
}

.gwbk-extract .status.warn {
  background: var(--warn-bg);
  color: var(--warn);
}

.gwbk-extract .progress {
  height: 3px;
  background: var(--border);
  display: none;
  flex: none;
}

.gwbk-extract .progress > span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
}

.gwbk-extract .workspace {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 300px;
  flex: 1;
  min-height: 0;
}

.gwbk-extract .workspace[hidden] {
  display: none !important;
}

.gwbk-extract .inspector-backdrop {
  display: none;
}

@media (max-width: 1100px) {
  .gwbk-extract .workspace {
    grid-template-columns: 220px minmax(0, 1fr);
  }
  .gwbk-extract .inspector {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(400px, 100vw);
    z-index: 20;
    border-left: 1px solid var(--border);
    box-shadow: -16px 0 40px rgba(28, 35, 48, 0.18);
  }
  .gwbk-extract .workspace.show-inspector .inspector {
    display: flex;
    flex-direction: column;
  }
  .gwbk-extract .inspector-backdrop:not([hidden]) {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 19;
    border: 0;
    padding: 0;
    background: rgba(28, 35, 48, 0.45);
    cursor: pointer;
  }
}

@media (max-width: 760px) {
  .gwbk-extract .workspace {
    grid-template-columns: 1fr;
  }
  .gwbk-extract .inspector {
    width: min(440px, 100vw);
  }
}

.gwbk-extract .sidebar,
.gwbk-extract .inspector {
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow: auto;
  padding: 16px;
}

.gwbk-extract .inspector {
  border-right: 0;
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.gwbk-extract .inspector-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
  flex: none;
}

.gwbk-extract .inspector-head .section-title {
  margin: 0;
}

.gwbk-extract .inspector-close {
  background: none;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font: 1.4rem/1 inherit;
  padding: 0 4px;
}

.gwbk-extract .inspector-close:hover {
  color: var(--text);
}

.gwbk-extract .detail {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg);
}

.gwbk-extract .section-title {
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 650;
}

.gwbk-extract .projects {
  display: grid;
  gap: 6px;
}

.gwbk-extract .project {
  width: 100%;
  text-align: left;
  color: inherit;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 9px 10px;
  cursor: pointer;
}

.gwbk-extract .project:hover {
  background: var(--sunken);
}

.gwbk-extract .project:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.gwbk-extract .project.active {
  background: var(--accent-soft);
  border-color: #f0c49a;
}

.gwbk-extract .project .name {
  font-weight: 650;
}

.gwbk-extract .project .sub {
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 2px;
}

.gwbk-extract .detail-head {
  padding: 14px 18px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.gwbk-extract .detail-head h2 {
  margin: 0 0 4px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.gwbk-extract .toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
}

.gwbk-extract .hint {
  color: var(--muted);
  font-size: 0.88rem;
}

.gwbk-extract input[type="search"],
.gwbk-extract .btn,
.gwbk-extract .reset {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
}

.gwbk-extract input[type="search"] {
  padding: 7px 10px;
  min-width: 160px;
  flex: 1;
}

.gwbk-extract .btn,
.gwbk-extract .reset {
  padding: 6px 11px;
  cursor: pointer;
}

.gwbk-extract .btn:hover,
.gwbk-extract .reset:hover {
  border-color: var(--accent);
}

.gwbk-extract .btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 650;
}

.gwbk-extract .btn.primary:hover {
  filter: brightness(1.05);
}

.gwbk-extract .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.gwbk-extract .resource-pane {
  flex: 1;
  overflow: auto;
  padding: 10px 12px 16px;
}

.gwbk-extract .detail-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.gwbk-extract .empty {
  color: var(--muted);
  padding: 36px 16px;
  text-align: center;
}

.gwbk-extract .inspector h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  word-break: break-word;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.gwbk-extract .kv {
  margin: 12px 0 0;
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 7px 10px;
  font-size: 0.86rem;
}

.gwbk-extract .kv dt {
  color: var(--muted);
}

.gwbk-extract .kv dd {
  margin: 0;
  word-break: break-word;
}

.gwbk-extract .file-list-hint {
  margin: 6px 0 0;
}

.gwbk-extract .file-list {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
}

.gwbk-extract .file-list li + li {
  margin-top: 2px;
}

.gwbk-extract .file-open {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  background: none;
  border: 0;
  border-radius: 6px;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  padding: 5px 6px;
}

.gwbk-extract .file-open:hover {
  background: var(--sunken);
}

.gwbk-extract .file-open .file-name {
  color: var(--accent);
  word-break: break-word;
}

.gwbk-extract .file-open.primary {
  background: var(--accent-soft);
  padding: 8px 8px;
}

.gwbk-extract .file-open.primary:hover {
  filter: brightness(0.98);
}

.gwbk-extract .file-open.primary .file-name {
  font-weight: 650;
}

.gwbk-extract .file-open.secondary .file-name {
  color: var(--muted);
  font-weight: 400;
}

.gwbk-extract .file-dialog[open] {
  display: flex;
  flex-direction: column;
  width: min(920px, calc(100vw - 32px));
  height: min(80vh, 820px);
  max-width: none;
  max-height: none;
  margin: auto;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 18px 50px rgba(28, 35, 48, 0.22);
}

.gwbk-extract .file-dialog::backdrop {
  background: rgba(28, 35, 48, 0.45);
}

.gwbk-extract .file-dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  flex: none;
}

.gwbk-extract .file-dialog-titles {
  min-width: 0;
}

.gwbk-extract .file-dialog-head h2 {
  margin: 0;
  font-size: 1rem;
  word-break: break-word;
}

.gwbk-extract .file-dialog-head .hint {
  margin: 3px 0 0;
}

.gwbk-extract .file-dialog-actions {
  display: flex;
  gap: 8px;
  flex: none;
}

.gwbk-extract .file-dialog-body {
  margin: 0;
  padding: 14px 16px 18px;
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--sunken);
  font: 13px/1.5 ui-monospace, "Cascadia Code", "Segoe UI Mono", Consolas, monospace;
  white-space: pre;
  word-break: normal;
  tab-size: 4;
}

.gwbk-extract .tree.tree-root {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px 8px;
}

.gwbk-extract .tree-type > .tree-row {
  padding: 8px 8px;
  margin: 4px 0 2px;
  background: var(--sunken);
  border-radius: 8px;
}

.gwbk-extract .tree-type > .tree-row .type-label {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.gwbk-extract .tree-type.pinned > .tree-row {
  background: var(--accent-soft);
  box-shadow: inset 4px 0 0 var(--accent);
}

.gwbk-extract .cat-count,
.gwbk-extract .folder-count {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.75rem;
  flex: none;
}

.gwbk-extract .renamed-mark {
  flex: none;
  font-size: 0.68rem;
  font-style: normal;
  font-weight: 650;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 1px 6px;
}

.gwbk-extract .tree {
  margin: 0;
  padding: 4px 6px 6px;
  list-style: none;
}

.gwbk-extract .tree .tree {
  margin: 0 0 0 11px;
  padding: 0 0 0 12px;
  border-left: 1px solid var(--border);
}

.gwbk-extract .tree-folder.collapsed > .tree {
  display: none;
}

.gwbk-extract .tree-node.hidden {
  display: none;
}

.gwbk-extract .tree-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 6px;
  border-radius: 6px;
}

.gwbk-extract .tree-row:hover {
  background: var(--sunken);
}

.gwbk-extract .tree-node.active > .tree-row {
  background: var(--accent-soft);
}

.gwbk-extract .folder-chevron,
.gwbk-extract .tree-spacer {
  width: 1.1em;
  flex: none;
  background: none;
  border: 0;
  padding: 0;
  color: var(--muted);
  font: inherit;
  line-height: 1.2;
}

.gwbk-extract .folder-chevron {
  cursor: pointer;
}

.gwbk-extract .folder-chevron::before {
  content: "▾";
}

.gwbk-extract .tree-folder.collapsed > .tree-row .folder-chevron::before {
  content: "▸";
}

.gwbk-extract .res-name,
.gwbk-extract .folder-label {
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  padding: 0;
  word-break: break-word;
  flex: 1;
  min-width: 0;
}

.gwbk-extract .tree-node.renamed > .tree-row .res-name,
.gwbk-extract .tree-node.renamed > .tree-row .folder-label {
  font-style: normal;
}

.gwbk-extract .rename-btn {
  opacity: 0;
  background: none;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  padding: 0 2px;
  font: inherit;
  line-height: 1.2;
  flex: none;
}

.gwbk-extract .tree-row:hover .rename-btn,
.gwbk-extract .tree-row:focus-within .rename-btn,
.gwbk-extract .tree-node.active > .tree-row .rename-btn {
  opacity: 1;
}

.gwbk-extract .rename-btn:hover {
  color: var(--accent);
}

.gwbk-extract .rename-btn::before {
  content: "✎";
}

.gwbk-extract .rename-input {
  flex: 1;
  min-width: 0;
  font: inherit;
  padding: 1px 6px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

.gwbk-extract .inspect-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 0;
}

.gwbk-extract .folder-label {
  font-weight: 600;
}

.gwbk-extract .res-name:hover,
.gwbk-extract .folder-label:hover {
  color: var(--accent);
}

.gwbk-extract .tree-row mark {
  background: #ffe08a;
  color: inherit;
  border-radius: 3px;
  padding: 0 2px;
}

.gwbk-extract .linkish {
  background: none;
  border: 0;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  padding: 0;
  text-decoration: underline;
}

.gwbk-extract input[type="file"] {
  display: none;
}

.gwbk-extract input[type="checkbox"] {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  margin: 0;
  flex: none;
}

.gwbk-extract .note {
  margin: 8px 0 0;
  font-size: 0.85rem;
}

.gwbk-extract footer.app-foot {
  display: none;
}

.gwbk-extract:not(.has-file) footer.app-foot {
  display: block;
  margin-top: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
}