:root,
[data-theme='dark'] {
  --bg: #14181c;
  --bg-panel: #1c2228;
  --bg-elevated: #242b33;
  --bg-hover: #2c343d;
  --border: #323b45;
  --border-strong: #4a5562;
  --text: #eef2f6;
  --text-muted: #b0bac6;
  --accent: #2f9e7a;
  --accent-hover: #3bb890;
  --accent-dim: rgba(47, 158, 122, 0.18);
  --accent-ink: #06140f;
  --warn: #d4a017;
  --selection: rgba(47, 158, 122, 0.35);
  --selection-border: #2f9e7a;
  --danger-border: #6b3530;
  --danger-text: #f0b0ab;
  --disabled-bg: #1e252c;
  --disabled-border: #2f3842;
  --disabled-text: #c8d0d9;
  --input-disabled-bg: #1a1f25;
  --stage-a: #171c21;
  --stage-b: #12161a;
  --topbar-from: #1a2026;
  --topbar-to: var(--bg-panel);
  --panel-shadow: none;
  --dropzone-bg: rgba(28, 34, 40, 0.85);
  --canvas-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  --accent-active-text: #9fe0c8;
  --status-ok-border: #2a5a48;
  --status-ok-text: #9fe0c8;
  --status-ok-bg: var(--bg);
  --status-err-border: #6b3530;
  --status-err-text: #f0b0ab;
  --status-err-bg: var(--bg);
  --font: "Segoe UI", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", system-ui, sans-serif;
  --mono: "Cascadia Mono", "Sarasa Mono TC", ui-monospace, monospace;
  --radius: 6px;
  color-scheme: dark;
}

[data-theme='light'] {
  --bg: #f4f5f7;
  --bg-panel: #ffffff;
  --bg-elevated: #ffffff;
  --bg-hover: #f0f2f5;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --text: #111827;
  --text-muted: #6b7280;
  --accent: #0d9488;
  --accent-hover: #0f766e;
  --accent-dim: rgba(13, 148, 136, 0.12);
  --accent-ink: #ffffff;
  --accent-active-text: #0f766e;
  --warn: #b45309;
  --selection: rgba(13, 148, 136, 0.2);
  --selection-border: #0d9488;
  --danger-border: #fecaca;
  --danger-text: #b91c1c;
  --disabled-bg: #f3f4f6;
  --disabled-border: #e5e7eb;
  --disabled-text: #9ca3af;
  --input-disabled-bg: #f9fafb;
  --stage-a: #eef0f3;
  --stage-b: #e6e8ed;
  --topbar-from: #ffffff;
  --topbar-to: #fafbfc;
  --panel-shadow: 0 1px 2px rgba(17, 24, 39, 0.04);
  --dropzone-bg: rgba(255, 255, 255, 0.92);
  --canvas-shadow: 0 10px 28px rgba(17, 24, 39, 0.1);
  --status-ok-border: #99f6e4;
  --status-ok-text: #0f766e;
  --status-ok-bg: #f0fdfa;
  --status-err-border: #fecaca;
  --status-err-text: #b91c1c;
  --status-err-bg: #fef2f2;
  color-scheme: light;
}

[data-theme='ocean'] {
  --bg: #0b1c24;
  --bg-panel: #102832;
  --bg-elevated: #163541;
  --bg-hover: #1c4250;
  --border: #2a5160;
  --border-strong: #3d6d80;
  --text: #e6f4f8;
  --text-muted: #9cb8c4;
  --accent: #2eb8c7;
  --accent-hover: #4ec9d6;
  --accent-dim: rgba(46, 184, 199, 0.18);
  --accent-ink: #042028;
  --warn: #e0b04a;
  --selection: rgba(46, 184, 199, 0.32);
  --selection-border: #2eb8c7;
  --danger-border: #7a3d45;
  --danger-text: #f0b0ab;
  --disabled-bg: #122830;
  --disabled-border: #2a5160;
  --disabled-text: #9cb8c4;
  --input-disabled-bg: #0e222a;
  --stage-a: #0f2430;
  --stage-b: #0a1a22;
  --topbar-from: #12303a;
  --topbar-to: var(--bg-panel);
  --panel-shadow: none;
  --dropzone-bg: rgba(16, 40, 50, 0.88);
  --canvas-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  --accent-active-text: #9fe8f0;
  --status-ok-border: #2a5a60;
  --status-ok-text: #9fe8f0;
  --status-ok-bg: var(--bg);
  --status-err-border: #7a3d45;
  --status-err-text: #f0b0ab;
  --status-err-bg: var(--bg);
  color-scheme: dark;
}

[data-theme='contrast'] {
  --bg: #000000;
  --bg-panel: #0a0a0a;
  --bg-elevated: #141414;
  --bg-hover: #222222;
  --border: #666666;
  --border-strong: #999999;
  --text: #ffffff;
  --text-muted: #dddddd;
  --accent: #ffe600;
  --accent-hover: #fff36b;
  --accent-dim: rgba(255, 230, 0, 0.18);
  --accent-ink: #111111;
  --warn: #ff9900;
  --selection: rgba(255, 230, 0, 0.35);
  --selection-border: #ffe600;
  --danger-border: #ff5555;
  --danger-text: #ffaaaa;
  --disabled-bg: #111111;
  --disabled-border: #444444;
  --disabled-text: #bbbbbb;
  --input-disabled-bg: #0a0a0a;
  --stage-a: #111111;
  --stage-b: #000000;
  --topbar-from: #111111;
  --topbar-to: var(--bg-panel);
  --panel-shadow: none;
  --dropzone-bg: rgba(20, 20, 20, 0.9);
  --canvas-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
  --accent-active-text: #ffe600;
  --status-ok-border: #666600;
  --status-ok-text: #ffe600;
  --status-ok-bg: var(--bg);
  --status-err-border: #ff5555;
  --status-err-text: #ffaaaa;
  --status-err-bg: var(--bg);
  --radius: 2px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

button, input, select, .btn { font: inherit; }

button,
.btn {
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  border-radius: var(--radius, 6px);
  padding: 0.45rem 0.75rem;
  transition: background 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
  display: inline-block;
  text-align: center;
}

button:hover:not(:disabled),
.btn:hover {
  border-color: var(--border-strong);
  background: var(--bg-hover);
}

button:disabled,
.btn:disabled {
  opacity: 1;
  cursor: not-allowed;
  color: var(--disabled-text);
  background: var(--disabled-bg);
  border-color: var(--disabled-border);
}

button.primary,
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

button.primary:hover:not(:disabled),
.btn.primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

button.primary:disabled,
.btn.primary:disabled {
  background: var(--accent-dim);
  border-color: var(--border);
  color: var(--text-muted);
}

button.danger {
  border-color: var(--danger-border);
  color: var(--danger-text);
}

button.danger:disabled {
  border-color: var(--danger-border);
  color: var(--danger-text);
  background: var(--disabled-bg);
  opacity: 0.7;
}

button.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-active-text);
}

.hidden { display: none !important; }

.app {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.1rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--topbar-from) 0%, var(--topbar-to) 100%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1.15rem;
  white-space: nowrap;
  color: var(--accent);
}

.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.4rem;
  object-fit: cover;
  flex-shrink: 0;
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-left: auto;
}

.topbar-more-btn {
  display: none;
}

/* Desktop: panel children flow with topbar actions */
.topbar-more-panel {
  display: contents;
}

.drop-lead {
  margin: 0.35rem 0 0.75rem;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
}

.trust-points {
  list-style: none;
  margin: 0.85rem 0 1.1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  justify-content: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.trust-points li {
  position: relative;
  padding-left: 0.85rem;
}

.trust-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.75;
}

.donate-qr-wrap {
  margin: 0.5rem 0 0.75rem;
  text-align: center;
}

.donate-qr {
  display: block;
  margin: 0.4rem auto 0;
  max-width: 180px;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
}

.job-progress {
  margin: 0.35rem 0 0.65rem;
}

.job-progress-track {
  height: 6px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
}

.job-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 0.2s ease;
}

.job-progress-label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.prefs {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-right: 0.15rem;
}

.pref {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.pref-label {
  white-space: nowrap;
}

.pref select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius, 6px);
  padding: 0.28rem 0.35rem;
  max-width: 6.5rem;
}

.zoom-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}

.zoom-controls button {
  min-width: 2rem;
  padding: 0.35rem 0.45rem;
}

#btnZoomReset {
  min-width: 3.4rem;
  font-variant-numeric: tabular-nums;
}

.file-name {
  color: var(--text-muted);
  font-size: 0.85rem;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace {
  display: grid;
  grid-template-columns: 220px 1fr 280px;
  grid-template-areas: "sidebar stage inspector";
  min-height: 0;
}

.sidebar { grid-area: sidebar; }
.stage { grid-area: stage; }
.inspector { grid-area: inspector; }

.sidebar, .inspector {
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow: auto;
  padding: 0.85rem;
  min-height: 0;
}

.inspector {
  border-right: none;
  border-left: 1px solid var(--border);
}

.sidebar h2, .inspector h2 {
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
}

.panel-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-elevated);
  margin-bottom: 0.65rem;
  overflow: hidden;
  box-shadow: var(--panel-shadow);
}

.panel-block > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  padding: 0.65rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background: var(--bg-hover);
  transition: background 0.15s ease;
}

.panel-block > summary::-webkit-details-marker {
  display: none;
}

.panel-block > summary::after {
  content: '';
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform 0.15s ease;
  flex-shrink: 0;
}

.panel-block[open] > summary::after {
  transform: rotate(225deg);
  margin-top: 0.2rem;
}

.panel-block > summary:hover {
  background: var(--bg-hover);
}

.panel-body {
  padding: 0.75rem;
  border-top: 1px solid var(--border);
  color: var(--text);
  background: var(--bg-elevated);
}

.panel-body .hint,
.panel-body .field label {
  color: var(--text-muted);
}

.panel-body button,
.panel-body .btn {
  color: var(--text);
}

.panel-body button.primary,
.panel-body .btn.primary {
  color: var(--accent-ink);
}

.panel-body button.primary:disabled,
.panel-body .btn.primary:disabled {
  color: var(--text-muted);
}

.panel-body button.danger {
  color: var(--danger-text);
}

.panel-body button.danger:disabled {
  color: var(--danger-text);
}

.panel-body button.active {
  color: var(--accent-active-text);
}

.panel-body .field input,
.panel-body .field select {
  color: var(--text);
}

.panel-body .field input:disabled,
.panel-body .field select:disabled {
  opacity: 1;
  color: var(--disabled-text);
  -webkit-text-fill-color: var(--disabled-text);
  background: var(--input-disabled-bg);
  border-color: var(--disabled-border);
}

.panel-body .field input::placeholder {
  color: var(--text-muted);
  opacity: 0.85;
}

.inspector .status {
  margin-top: 0.35rem;
}

.sidebar-head,
.inspector-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem;
  margin-bottom: 0.35rem;
}

.sidebar-head h2,
.inspector-head h2 { margin: 0; }

.inspector-head {
  margin-bottom: 0.55rem;
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--bg-panel);
  padding-bottom: 0.2rem;
}

.sidebar-actions {
  display: flex;
  gap: 0.25rem;
}

button.tiny,
.btn.tiny {
  padding: 0.2rem 0.4rem;
  font-size: 0.72rem;
}

button.ghost {
  background: transparent;
}

.tiny-hint {
  font-size: 0.72rem;
  margin-bottom: 0.65rem;
}

.center-row {
  justify-content: center;
}

.page-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.page-thumb {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem;
  background: var(--bg);
  text-align: left;
  width: 100%;
  cursor: grab;
  position: relative;
}

.page-thumb:active { cursor: grabbing; }

.page-thumb.dragging {
  opacity: 0.45;
}

.page-thumb.drag-over {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.page-thumb.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.page-thumb.checked {
  background: var(--accent-dim);
}

.page-thumb img {
  width: 100%;
  display: block;
  border-radius: 2px;
  background: #fff;
  pointer-events: none;
  min-height: 72px;
  object-fit: contain;
}

.page-thumb img:not([src]),
.page-thumb img[src=''] {
  background: linear-gradient(180deg, #f2f2f2, #e6e6e6);
}

.page-thumb .meta {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--mono);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.page-thumb .meta input {
  accent-color: var(--accent);
}

.doc-tools button {
  width: 100%;
}

.stage {
  min-height: 0;
  overflow: auto;
  background:
    radial-gradient(circle at 20% 0%, var(--accent-dim), transparent 45%),
    repeating-conic-gradient(var(--stage-a) 0% 25%, var(--stage-b) 0% 50%) 0 0 / 18px 18px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 1.5rem;
}

.stage-empty {
  margin: auto;
  text-align: center;
  max-width: 360px;
  color: var(--text-muted);
}

.stage-empty h1 {
  color: var(--text);
  font-size: 1.55rem;
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.stage-empty p {
  margin: 0 0 1.2rem;
  line-height: 1.5;
}

.privacy-note {
  margin: -0.55rem 0 1.15rem !important;
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.95;
}

.app-meta {
  margin: 0.65rem 0 0;
  font-size: 0.68rem;
  color: var(--text-muted);
  text-align: center;
  opacity: 0.75;
}

.app-footer {
  margin-top: 0.85rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border);
}

.app-footer .app-meta {
  margin: 0 0 0.35rem;
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
  align-items: center;
  font-size: 0.68rem;
  color: var(--text-muted);
}

.legal-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.legal-links a:hover {
  color: var(--accent-active-text, var(--accent));
  text-decoration: underline;
}

.support-panel .btn {
  display: block;
  width: 100%;
  text-align: center;
  text-decoration: none;
  box-sizing: border-box;
}

.plan-compare {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  list-style: disc;
}

.plan-compare li {
  margin: 0.2rem 0;
}

#panelSupport.hidden {
  display: none;
}

.modal {
  border: none;
  padding: 0;
  background: transparent;
  max-width: calc(100vw - 2rem);
}

.modal::backdrop {
  background: rgba(0, 0, 0, 0.55);
}

.modal-card {
  width: min(360px, 100%);
  margin: auto;
  padding: 1.1rem 1.15rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  box-shadow: var(--panel-shadow, none);
}

.modal-card h2 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}

.modal-card .field {
  margin: 0.75rem 0;
}

.modal-card input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.5rem 0.55rem;
}

.modal-actions {
  justify-content: flex-end;
  margin-top: 0.85rem;
}

.mt-2 { margin-top: 0.55rem; }
.mt-3 { margin-top: 0.65rem; }
.mt-4 { margin-top: 0.75rem; }
.mt-5 { margin-top: 0.85rem; }
.w-full { width: 100%; }

.donate-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.donate-buttons:empty {
  display: none;
}
.donate-buttons .btn {
  text-align: center;
  text-decoration: none;
}

.support-contact {
  margin: 0.35rem 0 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.support-contact a {
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
}

.support-contact a:hover {
  text-decoration: underline;
}

.feedback-form .field {
  margin-bottom: 0.65rem;
}

.feedback-form textarea {
  width: 100%;
  resize: vertical;
  min-height: 5.5rem;
}

.feedback-form .primary {
  width: 100%;
}

.feedback-honey {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.feedback-status {
  margin-top: 0.55rem;
  min-height: 1.1em;
}

.feedback-status.ok {
  color: var(--status-ok-text);
}

.feedback-status.error {
  color: var(--status-err-text);
}

.usage-stats {
  margin: 0.25rem 0 0.65rem;
}

.dropzone {
  border: 1.5px dashed var(--border-strong);
  border-radius: 10px;
  padding: 2rem 1.5rem;
  background: var(--dropzone-bg);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.canvas-wrap {
  position: relative;
  box-shadow: var(--canvas-shadow);
  line-height: 0;
  background: #fff;
  user-select: none;
  -webkit-user-select: none;
}

.canvas-wrap canvas.page-canvas {
  display: block;
  max-width: min(100%, 820px);
  width: auto;
  height: auto;
  -webkit-user-drag: none;
  user-select: none;
}

.selection-layer {
  position: absolute;
  inset: 0;
  cursor: crosshair;
  touch-action: none;
}

.selection-mask {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: none;
}

.selection-mask.active {
  display: block;
}

.selection-box {
  position: absolute;
  border: 2px solid var(--selection-border);
  background: var(--selection);
  pointer-events: none;
}

.paste-marker {
  position: absolute;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border: 2px solid var(--warn);
  background: rgba(212, 160, 23, 0.35);
  border-radius: 50%;
  pointer-events: none;
}

.ocr-edit-layer {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

.ocr-line-editor {
  position: absolute;
  box-sizing: border-box;
  margin: 0;
  padding: 0 2px;
  border: 1px solid transparent;
  border-radius: 1px;
  outline: none;
  overflow: hidden;
  white-space: pre;
  line-height: 1.15;
  color: #1a1a1a;
  background: rgba(255, 255, 255, 0.92);
  font-family: var(--font);
  font-weight: 500;
  caret-color: #1a1a1a;
  pointer-events: auto;
  touch-action: auto;
  user-select: text;
  -webkit-user-select: text;
  cursor: text;
}

.ocr-line-editor:hover {
  border-color: var(--selection-border);
}

.ocr-line-editor:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 1px var(--accent-dim);
  z-index: 6;
}

.ocr-line-editor.dirty {
  border-color: rgba(212, 160, 23, 0.7);
}

.clip-preview {
  width: auto;
  max-width: 100%;
  background:
    repeating-conic-gradient(#ddd 0% 25%, #fff 0% 50%) 0 0 / 12px 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
  margin: 0.5rem 0 0.75rem;
  display: block;
  max-height: 160px;
  object-fit: contain;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 0.75rem;
}

.field label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.field input, .field select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.45rem 0.55rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.row {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.btn-grid {
  display: grid;
  gap: 0.45rem;
}

.btn-grid-2 {
  grid-template-columns: 1fr 1fr;
}

.btn-grid > button,
.btn-grid > .btn {
  width: 100%;
  min-width: 0;
}

.btn-grid > .span-all {
  grid-column: 1 / -1;
}

.hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0 0 0.75rem;
}

.check-row {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.status {
  margin-top: 0.75rem;
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius, 6px);
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status.error {
  border-color: var(--status-err-border);
  color: var(--status-err-text);
  background: var(--status-err-bg);
}

.status.ok {
  border-color: var(--status-ok-border);
  color: var(--status-ok-text);
  background: var(--status-ok-bg);
}

.mode-tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
}

.mode-tabs button {
  flex: 1;
  font-size: 0.82rem;
  padding: 0.4rem 0.35rem;
}

.mode-tabs-4 button,
.mode-tabs-5 button,
.mode-tabs-6 button {
  font-size: 0.68rem;
  padding: 0.4rem 0.1rem;
}

.panel-body textarea {
  width: 100%;
  resize: vertical;
  min-height: 6rem;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.5rem 0.55rem;
  line-height: 1.45;
  font: inherit;
}

.panel-body textarea:disabled {
  opacity: 1;
  color: var(--disabled-text);
  -webkit-text-fill-color: var(--disabled-text);
  background: var(--input-disabled-bg);
  border-color: var(--disabled-border);
}

.field.grow {
  flex: 1;
  min-width: 0;
  margin-bottom: 0.75rem;
}

input[type='color'] {
  padding: 0.15rem;
  height: 2.1rem;
  cursor: pointer;
}

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

/* Light theme polish */
[data-theme='light'] .sidebar,
[data-theme='light'] .inspector {
  background: #fafbfc;
}

[data-theme='light'] .panel-block > summary {
  background: #fafbfc;
}

[data-theme='light'] .panel-block > summary:hover {
  background: #f3f4f6;
}

[data-theme='light'] .panel-block[open] > summary {
  background: #f3f4f6;
}

[data-theme='light'] .pref select,
[data-theme='light'] .field input,
[data-theme='light'] .field select,
[data-theme='light'] .panel-body textarea,
[data-theme='light'] .zoom-controls {
  background: #ffffff;
  border-color: var(--border);
}

[data-theme='light'] .pref select:focus,
[data-theme='light'] .field input:focus,
[data-theme='light'] .field select:focus,
[data-theme='light'] .panel-body textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

[data-theme='light'] button:not(.primary):not(.danger):not(.active):hover:not(:disabled),
[data-theme='light'] .btn:not(.primary):not(.danger):hover {
  background: #f3f4f6;
  border-color: var(--border-strong);
}

[data-theme='light'] .topbar {
  box-shadow: 0 1px 0 rgba(17, 24, 39, 0.04);
}

/* —— Responsive —— */
@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 180px 1fr 260px;
  }

  .file-name {
    max-width: 140px;
  }
}

@media (max-width: 960px) {
  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(42vh, 1fr) minmax(140px, 28vh) auto;
    grid-template-areas:
      "stage"
      "sidebar"
      "inspector";
  }

  .sidebar,
  .inspector {
    border-right: none;
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .sidebar {
    overflow: auto;
  }

  .page-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
    gap: 0.45rem;
  }

  .page-thumb img {
    width: 100%;
    height: auto;
  }

  .stage {
    padding: 0.85rem;
  }

  .inspector {
    max-height: none;
  }
}

@media (max-width: 720px) {
  .topbar {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.55rem 0.7rem;
  }

  .brand {
    font-size: 1.05rem;
  }

  .file-name {
    flex: 1 1 auto;
    max-width: none;
    min-width: 0;
    order: 2;
    width: 100%;
    font-size: 0.78rem;
  }

  .topbar-actions {
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 0.35rem;
  }

  .topbar-more-btn {
    display: inline-flex;
  }

  .topbar-more-panel {
    display: none;
    width: 100%;
    flex-basis: 100%;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
    padding: 0.35rem 0 0.1rem;
    border-top: 1px solid var(--border);
    margin-top: 0.15rem;
  }

  .topbar-more-panel.open {
    display: flex;
  }

  .pref-label {
    display: none;
  }

  .prefs {
    margin-right: 0;
  }

  .topbar-actions > button,
  .topbar-actions > .btn,
  .topbar-actions > label.btn,
  .topbar-more-panel > button,
  .topbar-more-panel > .btn,
  .topbar-more-panel > label.btn {
    font-size: 0.78rem;
    padding: 0.4rem 0.55rem;
  }

  .zoom-controls button {
    min-width: 1.75rem;
    padding: 0.3rem 0.35rem;
  }

  #btnZoomReset {
    min-width: 3rem;
  }

  .workspace {
    grid-template-rows: minmax(38vh, 1fr) minmax(120px, 26vh) auto;
  }

  .stage-empty {
    max-width: 100%;
    padding: 0 0.25rem;
  }

  .stage-empty h1 {
    font-size: 1.35rem;
  }

  .stage-empty .row.center-row {
    flex-direction: column;
    align-items: stretch;
  }

  .stage-empty .row.center-row .btn,
  .stage-empty .row.center-row label.btn {
    width: 100%;
    text-align: center;
  }

  .btn-grid-2 {
    grid-template-columns: 1fr;
  }

  .panel-body .row {
    flex-wrap: wrap;
  }

  .panel-body .row > input,
  .panel-body .row > select,
  .panel-body .row > button {
    flex: 1 1 auto;
  }

  .modal-card {
    width: min(100vw - 1.25rem, 420px);
    margin: 0.75rem;
  }

  .canvas-wrap {
    max-width: 100%;
  }

  .page-canvas {
    max-width: 100%;
    height: auto;
  }
}

@media (max-width: 420px) {
  .workspace {
    grid-template-rows: minmax(36vh, 1fr) minmax(110px, 24vh) auto;
  }
}

@media (hover: none) and (pointer: coarse) {
  button,
  .btn,
  label.btn,
  .page-thumb,
  .panel-block > summary {
    min-height: 2.5rem;
  }

  .page-thumb {
    cursor: pointer;
  }
}