.tool-ui {
  display: grid;
  gap: 22px;
}
.tool-ui .upload-zone {
  position: relative;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.tool-ui .upload-zone.is-compact {
  min-height: 68px;
  padding: 10px 14px;
}
.tool-ui .upload-zone.is-compact .upload-paste-hint { display: none; }
.tool-file {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.upload-preview-ui {
  width: 100%;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  pointer-events: none;
  text-align: left;
}
.upload-preview-ui > i {
  width: 42px;
  height: 42px;
  margin: 0;
  border-radius: var(--r);
  background: var(--brand-l);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.upload-preview-thumb {
  width: 54px;
  height: 42px;
  object-fit: contain;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
.upload-preview-copy {
  min-width: 0;
  display: grid;
  gap: 2px;
}
.upload-preview-copy strong {
  font-size: 12px;
  font-weight: 600;
  color: var(--txt);
}
.upload-preview-copy span,
.upload-preview-copy small {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--txt3);
  font-size: 11px;
}
.upload-preview-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--brand);
  font-size: 12px;
  white-space: nowrap;
}
.tool-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  align-items: end;
}
.tool-controls.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.control-field { display: grid; gap: 8px; }
.control-field.hidden { display: none; }
.control-field label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--txt2);
}
.control-field .tooltip {
  color: var(--txt3);
  cursor: help;
}
.control-field input,
.control-field select,
.control-field textarea {
  width: 100%;
  min-width: 0;
  border: 0.5px solid var(--bdr2);
  border-radius: var(--r);
  background: var(--bg2);
  color: var(--txt);
  font-family: var(--font);
  font-size: 13px;
  padding: 9px 10px;
}
.compressor-controls {
  grid-template-columns: minmax(260px, 1.2fr) repeat(3, minmax(150px, 1fr));
}
.quality-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 78px;
  gap: 10px;
  align-items: center;
}
.quality-control input[type="range"] {
  padding: 0;
  accent-color: var(--brand);
}
.quality-control input[type="number"] {
  text-align: center;
  font-weight: 700;
}
.control-field textarea {
  min-height: 180px;
  resize: vertical;
  line-height: 1.5;
}
.tool-preview {
  display: none;
  gap: 12px;
  align-items: start;
  padding: 12px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
.tool-preview.show { display: grid; }
.tool-preview.image-compare-preview {
  padding: 14px;
}
.qr-output {
  display: grid;
  gap: 14px;
}
.qr-preview {
  min-height: 280px;
  display: grid;
  place-items: center;
  gap: 10px;
  padding: 18px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  color: var(--txt3);
  text-align: center;
}
.qr-preview > i {
  font-size: 34px;
  color: var(--brand);
}
.qr-preview canvas {
  width: min(100%, 360px);
  height: auto;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: #fff;
  padding: 10px;
}
.qr-reader-result {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  color: var(--txt3);
}
.qr-reader-result > i {
  font-size: 26px;
  color: var(--brand);
}
.qr-reader-result.has-result {
  color: var(--txt);
}
.qr-reader-result code {
  white-space: pre-wrap;
  word-break: break-word;
  padding: 10px;
  border-radius: var(--r);
  background: var(--bg);
  color: var(--txt);
  font-size: 12px;
}
.qr-reader-result small {
  color: var(--txt3);
}
.metadata-panel,
.annotate-stage {
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  padding: 12px;
}
.metadata-list {
  display: grid;
  gap: 8px;
}
.metadata-list div {
  display: grid;
  grid-template-columns: minmax(120px, 0.45fr) minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border-radius: var(--r);
  background: var(--bg);
}
.metadata-list strong {
  font-size: 12px;
  color: var(--txt2);
}
.metadata-list span {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 12px;
  color: var(--txt);
}
.progress-line {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--bg3);
}
.progress-line span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--brand);
  transition: width .15s ease;
}
.annotate-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  overflow-x: auto;
  padding-bottom: 4px;
}
.annotate-toolbar label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  color: var(--txt2);
  font-size: 12px;
}
.annotate-toolbar input[type="color"] {
  width: 36px;
  height: 34px;
  padding: 2px;
}
.annotate-toolbar input[type="number"] {
  width: 64px;
}
.annotate-stage {
  overflow: auto;
  max-height: min(72vh, 760px);
}
.annotate-stage canvas {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  cursor: crosshair;
  background: var(--bg);
}
.tool-preview img,
.tool-preview canvas {
  max-width: 100%;
  border-radius: var(--r);
  border: 0.5px solid var(--bdr);
  background: var(--bg);
}
.tool-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 12px;
  width: 100%;
}
.single-preview-head,
.image-compare-head {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}
.single-preview-head strong,
.image-compare-head strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
}
.single-preview-head span,
.image-compare-head span {
  display: block;
  color: var(--txt3);
  font-size: 12px;
  margin-top: 3px;
}
.single-preview-frame,
.image-compare-frame {
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg);
  overflow: hidden;
}
.result-preview-frame {
  position: relative;
}
.result-preview-frame img[data-preview-image-src] {
  cursor: zoom-in;
}
.single-preview-frame img,
.image-compare-frame img {
  max-height: 360px;
  width: auto;
  object-fit: contain;
  border: 0;
  background: transparent;
}
.image-preview-trigger {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 10px;
  border: 0.5px solid var(--brand-border);
  border-radius: var(--r);
  background: color-mix(in srgb, var(--bg2) 88%, transparent);
  color: var(--brand-d);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
}
.image-preview-trigger:hover {
  background: var(--brand-l);
  color: var(--brand);
}
.image-preview-trigger.compact {
  right: 6px;
  bottom: 24px;
  padding: 5px 7px;
  font-size: 11px;
}
.pdf-image-preview .image-preview-trigger.compact {
  bottom: 6px;
}
.image-compare-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.image-compare-card {
  min-width: 0;
  display: grid;
  gap: 8px;
  margin: 0;
}
.image-compare-card figcaption {
  display: grid;
  gap: 2px;
  font-size: 12px;
}
.image-compare-card figcaption strong {
  font-weight: 600;
}
.image-compare-card figcaption span {
  color: var(--txt3);
  overflow-wrap: anywhere;
}
.image-compare-stats {
  width: 100%;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.image-compare-stats span,
.compare-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 0.5px solid var(--brand-border);
  background: var(--brand-l);
  color: var(--brand-d);
  padding: 4px 9px;
  font-size: 11px;
  line-height: 1.2;
}
.compare-badge {
  flex: 0 0 auto;
  font-weight: 600;
}
.compare-badge.warning {
  border-color: color-mix(in srgb, #d97706 35%, var(--bdr));
  background: color-mix(in srgb, #d97706 10%, var(--bg2));
  color: #92400e;
}
.tool-mini-card {
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  padding: 10px;
  background: var(--bg2);
  display: grid;
  gap: 7px;
}
.tool-mini-card img,
.tool-mini-card canvas { width: 100%; height: auto; }
.tool-mini-card strong {
  font-size: 12px;
  font-weight: 500;
  overflow-wrap: anywhere;
}
.tool-mini-card small { color: var(--txt3); font-size: 11px; }
.image-batch-card {
  align-content: start;
  gap: 10px;
}
.image-batch-card > strong {
  font-size: 13px;
  line-height: 1.35;
}
.batch-thumb {
  min-height: 164px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background:
    linear-gradient(45deg, color-mix(in srgb, var(--bdr) 28%, transparent) 25%, transparent 25%),
    linear-gradient(-45deg, color-mix(in srgb, var(--bdr) 28%, transparent) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--bdr) 28%, transparent) 75%),
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--bdr) 28%, transparent) 75%);
  background-color: var(--bg);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.batch-thumb img {
  width: 100%;
  height: 164px;
  object-fit: contain;
  border: 0;
  background: transparent;
}
.batch-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}
.batch-compare div {
  position: relative;
  min-width: 0;
  display: grid;
  gap: 4px;
}
.batch-compare img {
  width: 100%;
  height: 112px;
  object-fit: contain;
  background: var(--bg);
}
.batch-compare span {
  color: var(--txt3);
  font-size: 10px;
}
.batch-size-change {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 9px 10px;
  border: 0.5px solid var(--brand-border);
  border-radius: var(--r);
  background: var(--brand-l);
  color: var(--brand-d);
}
.batch-size-change span {
  min-width: 0;
  display: grid;
  gap: 2px;
}
.batch-size-change em {
  font-style: normal;
  font-size: 10px;
  color: color-mix(in srgb, var(--brand-d) 72%, var(--txt2));
}
.batch-size-change strong {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.15;
  overflow-wrap: anywhere;
}
.batch-size-change i {
  color: var(--brand);
  font-size: 15px;
}
.batch-size-change.warning {
  border-color: color-mix(in srgb, #d97706 35%, var(--bdr));
  background: color-mix(in srgb, #d97706 10%, var(--bg2));
  color: #92400e;
}
.batch-size-change.warning em,
.batch-size-change.warning i {
  color: #92400e;
}
.image-preview-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.image-preview-modal.show {
  display: flex;
}
.image-preview-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, .62);
}
.image-preview-dialog {
  position: relative;
  width: min(1120px, 100%);
  max-height: min(860px, 92vh);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r2);
  background: var(--bg2);
  box-shadow: 0 24px 80px rgba(0,0,0,.28);
  overflow: hidden;
}
.image-preview-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 0.5px solid var(--bdr);
}
.image-preview-head > div:first-child {
  min-width: 0;
  flex: 1;
}
.image-preview-head strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.image-preview-head span {
  display: block;
  margin-top: 3px;
  color: var(--txt3);
  font-size: 12px;
}
.image-preview-tools {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg);
}
.image-preview-tools span {
  min-width: 48px;
  margin: 0;
  text-align: center;
  color: var(--txt2);
  font-size: 12px;
  font-weight: 600;
}
.image-preview-body {
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 16px;
  background: var(--bg);
  cursor: grab;
  user-select: none;
  touch-action: none;
}
.image-preview-body.is-zoomed {
  cursor: grab;
}
.image-preview-body.is-dragging {
  cursor: grabbing;
}
.image-preview-body.is-splitting {
  cursor: ew-resize;
}
.image-preview-single,
.image-split-compare {
  width: 100%;
  height: min(72vh, 680px);
  display: grid;
  place-items: center;
}
.image-preview-single[hidden],
.image-split-compare[hidden] {
  display: none;
}
.image-preview-body img {
  max-width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border-radius: var(--r);
  background: var(--bg2);
  transform-origin: center center;
  transition: transform .08s ease-out;
  will-change: transform;
  pointer-events: none;
}
.image-split-compare {
  position: relative;
  overflow: hidden;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  --split-stage-width: 100%;
  --split-stage-height: 100%;
}
.image-split-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.image-split-layer img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: contain;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.image-split-base {
  z-index: 1;
}
.image-split-after {
  z-index: 2;
  right: auto;
  width: 50%;
}
.image-split-after img {
  width: var(--split-stage-width);
  height: var(--split-stage-height);
}
.image-split-handle {
  position: absolute;
  z-index: 4;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 44px;
  transform: translateX(-50%);
  border: 0;
  background: transparent;
  color: #fff;
  cursor: ew-resize;
}
.image-split-handle::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: var(--brand);
  box-shadow: 0 0 0 1px rgba(15,23,42,.18), 0 0 20px rgba(15,23,42,.24);
}
.image-split-handle i {
  position: relative;
  z-index: 1;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand);
  box-shadow: 0 10px 24px rgba(0,0,0,.22);
}
.image-split-label {
  position: absolute;
  z-index: 3;
  top: 12px;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .68);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}
.image-split-label.before { left: 12px; }
.image-split-label.after { right: 12px; }
.image-preview-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px 16px;
  border-top: 0.5px solid var(--bdr);
}
.tool-status {
  display: none;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg3);
  padding: 10px 12px;
  color: var(--txt2);
  font-size: 12px;
  line-height: 1.5;
}
.tool-status.show { display: block; }
.tool-status.error {
  color: #b42318;
  border-color: color-mix(in srgb, #b42318 35%, var(--bdr));
  background: color-mix(in srgb, #b42318 8%, var(--bg2));
}
.tool-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 14px;
}
.tool-controls + .tool-actions,
.control-field + .tool-actions,
.file-list + .tool-actions,
.sort-pages + .tool-actions { margin-top: 18px; }
.tool-actions .btn-primary,
.tool-actions .btn-sec { flex: 0 1 auto; }
.tool-actions .btn-primary:disabled,
.tool-actions .btn-sec:disabled {
  opacity: .45;
  cursor: not-allowed;
}
#tool-workspace .result-area.show {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
#tool-workspace .result-area .result-row {
  flex: 1 1 280px;
  min-width: 0;
  margin-bottom: 0;
  background: transparent;
  padding: 0;
}
#tool-workspace .result-area .tool-actions {
  margin-top: 0;
  justify-content: flex-end;
}
.file-list { display: grid; gap: 8px; }
.file-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  padding: 9px 10px;
}
.file-row i { color: var(--brand); }
.file-row strong { display: block; font-size: 12px; font-weight: 500; overflow-wrap: anywhere; }
.file-row small { color: var(--txt3); font-size: 11px; }
.icon-btn {
  width: 30px;
  height: 30px;
  border: 0.5px solid var(--bdr2);
  border-radius: var(--r);
  background: none;
  color: var(--txt2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover { background: var(--bg3); color: var(--txt); }
.sort-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 12px 14px;
  background: var(--bg2);
}
.sort-toolbar strong,
.sort-toolbar span {
  display: block;
}
.sort-toolbar strong {
  color: var(--txt);
  font-size: 15px;
}
.sort-toolbar span {
  margin-top: 4px;
  color: var(--txt2);
  font-size: 13px;
}
.sort-pages-shell {
  max-height: min(66vh, 760px);
  margin-top: 12px;
  overflow: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 12px;
  background: var(--bg);
}
.sort-pages { display: grid; grid-template-columns: repeat(auto-fill, minmax(112px, 1fr)); gap: 10px; }
.sort-page {
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  padding: 8px;
  display: grid;
  gap: 7px;
  cursor: grab;
}
.sort-page.dragging { opacity: .45; }
.sort-page-thumb {
  display: grid;
  place-items: center;
  min-height: 128px;
  border: 1px dashed var(--bdr);
  border-radius: calc(var(--r) - 2px);
  background: var(--bg3);
  color: var(--txt3);
  font-size: 12px;
}
.sort-page-thumb canvas { width: 100%; height: auto; border-radius: calc(var(--r) - 3px); }
.sort-page-head { display: flex; justify-content: space-between; align-items: center; font-size: 12px; }
.sort-page-actions {
  display: flex;
  justify-content: center;
  gap: 5px;
  flex-wrap: wrap;
}
.sort-actions {
  position: sticky;
  bottom: 0;
  z-index: 2;
  border-top: 1px solid var(--bdr);
  padding-top: 12px;
  background: var(--bg);
}
.media-queue {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(142px, 1fr));
  gap: 10px;
}
.media-card {
  min-width: 0;
  display: grid;
  gap: 7px;
  padding: 10px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
.media-thumb {
  height: 104px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r);
  background: var(--bg3);
  overflow: hidden;
}
.media-thumb canvas {
  max-width: 100%;
  max-height: 100%;
}
.media-card strong {
  min-width: 0;
  font-size: 12px;
  font-weight: 500;
  overflow-wrap: anywhere;
}
.media-card small { color: var(--txt3); font-size: 11px; }
.media-actions { display: flex; gap: 5px; flex-wrap: wrap; }
.tool-hint {
  margin: 12px 0;
  color: var(--txt2);
  font-size: 12px;
  line-height: 1.5;
}
.redactor-stage {
  padding: 10px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  text-align: center;
}
.crop-stage {
  padding: 10px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  text-align: center;
}
.crop-stage canvas {
  max-width: 100%;
  max-height: 520px;
  display: block;
  margin: 0 auto;
  border-radius: var(--r);
  background: var(--bg);
  cursor: crosshair;
  touch-action: none;
}
.redactor-stage canvas {
  max-width: 100%;
  max-height: 520px;
  display: block;
  margin: 0 auto;
  cursor: crosshair;
  touch-action: none;
}
.signature-layout {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(160px, .7fr);
  gap: 14px;
  margin-top: 18px;
}
.signature-panel,
.pdf-sign-preview {
  padding: 12px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
.signature-pad {
  display: block;
  width: 100%;
  height: auto;
  min-height: 92px;
  margin-top: 12px;
  border: 1px dashed var(--bdr2);
  border-radius: var(--r);
  background: #fff;
  touch-action: none;
  cursor: crosshair;
}
.pdf-sign-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.pdf-sign-preview-head {
  align-self: stretch;
  margin-bottom: 10px;
  color: var(--txt2);
  font-size: 13px;
  font-weight: 700;
}
.pdf-sign-preview canvas {
  max-width: 100%;
  max-height: 350px;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
}
.pdf-sign-page-input {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
}
.pdf-sign-page-input input {
  min-width: 0;
}
.pdf-sign-page-input span {
  border: 1px solid var(--bdr);
  border-radius: 999px;
  padding: 5px 9px;
  background: var(--bg2);
  color: var(--txt2);
  font-size: 12px;
  white-space: nowrap;
}
.pdf-sign-page-input span[hidden] {
  display: none !important;
}
.inline-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--txt2);
  font-size: 12px;
}
.inline-check input { width: auto; }
.base64-output { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
@media (max-width: 600px) {
  .tool-controls,
  .tool-controls.three,
  .compressor-controls { grid-template-columns: 1fr; }
  .quality-control {
    grid-template-columns: 1fr;
  }
  .upload-preview-ui {
    grid-template-columns: auto minmax(0, 1fr);
  }
  .upload-preview-action {
    grid-column: 2;
  }
  .image-compare-grid {
    grid-template-columns: 1fr;
  }
  .single-preview-frame,
  .image-compare-frame {
    min-height: 180px;
  }
  .single-preview-frame img,
  .image-compare-frame img {
    max-height: 260px;
  }
  .batch-size-change {
    grid-template-columns: 1fr;
  }
  .batch-size-change i {
    transform: rotate(90deg);
    justify-self: start;
  }
  .image-preview-modal {
    padding: 12px;
  }
  .image-preview-head {
    flex-wrap: wrap;
  }
  .image-preview-tools {
    order: 3;
    width: 100%;
    justify-content: center;
  }
  .image-preview-actions {
    flex-direction: column-reverse;
  }
  .image-preview-actions .btn-primary,
  .image-preview-actions .btn-sec {
    width: 100%;
  }
  #tool-workspace .result-area.show {
    align-items: stretch;
  }
  #tool-workspace .result-area .tool-actions,
  #tool-workspace .result-area .tool-actions .btn-primary,
  #tool-workspace .result-area .tool-actions .btn-sec {
    width: 100%;
  }
  .file-row { grid-template-columns: auto 1fr; }
  .file-row .icon-btn { grid-column: 2; justify-self: start; }
  .signature-layout { grid-template-columns: 1fr; }
  .media-queue { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ═══════════════════════════════════════════
   Text & Dev Tools Consolidation Styles
   ═══════════════════════════════════════════ */

/* Global text tool buttons inside workspace */
#tool-workspace .tb-btn {
  padding: 6px 13px;
  border-radius: var(--r);
  border: 0.5px solid var(--bdr2);
  background: none;
  font-size: 12px;
  font-weight: 500;
  color: var(--txt2);
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all .15s;
  font-family: var(--font);
  white-space: nowrap;
  cursor: pointer;
}
#tool-workspace .tb-btn:hover {
  background: var(--bg3);
}
#tool-workspace .tb-btn:active {
  transform: translateY(2px);
}
#tool-workspace .tb-btn:disabled {
  opacity: .45;
  pointer-events: none;
}
#tool-workspace .tb-btn.primary {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}
#tool-workspace .tb-btn.primary:hover {
  opacity: .88;
}
#tool-workspace .tb-btn.danger {
  color: #E24B4A;
}
#tool-workspace .tb-btn.danger:hover {
  background: #FEF2F2;
  border-color: #E24B4A;
}
.dark #tool-workspace .tb-btn.danger:hover {
  background: rgba(226, 75, 74, 0.12);
}

/* Global textareas inside workspace */
#tool-workspace textarea {
  width: 100%;
  padding: 12px;
  border-radius: var(--r);
  border: 0.5px solid var(--bdr2);
  background: var(--bg3);
  color: var(--txt);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
#tool-workspace textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 10%, transparent);
}
#tool-workspace textarea.error {
  border-color: #E24B4A;
  box-shadow: 0 0 0 3px rgba(226, 75, 74, 0.1);
}

#tool-workspace .control-grid {
  display: grid;
  gap: 12px;
  align-items: end;
}
#tool-workspace .control-grid label {
  display: grid;
  gap: 6px;
  color: var(--txt2);
  font-size: 12px;
}
#tool-workspace .control-grid label > span {
  font-size: 11px;
  color: var(--txt3);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
#tool-workspace .control-grid input,
#tool-workspace .control-grid select {
  width: 100%;
  min-width: 0;
  height: 38px;
  border-radius: var(--r);
  border: 0.5px solid var(--bdr2);
  background: var(--bg2);
  color: var(--txt);
  font: inherit;
  padding: 0 10px;
  outline: none;
}
#tool-workspace .control-grid input:focus,
#tool-workspace .control-grid select:focus {
  border-color: var(--brand);
}
#tool-workspace .control-grid input[type="checkbox"] {
  height: auto;
  accent-color: var(--brand);
  padding: 0;
}
#tool-workspace .control-grid input[type="color"] {
  padding: 4px;
  cursor: pointer;
}
#tool-workspace .color-converter-layout {
  display: grid;
  grid-template-columns: minmax(180px, .55fr) minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
  margin-top: 12px;
}
#tool-workspace .color-preview-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 14px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
#tool-workspace .color-preview-swatch {
  min-height: 150px;
  border-radius: var(--r);
  border: 0.5px solid var(--bdr2);
  background:
    linear-gradient(45deg, color-mix(in srgb, var(--bdr) 30%, transparent) 25%, transparent 25%),
    linear-gradient(-45deg, color-mix(in srgb, var(--bdr) 30%, transparent) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--bdr) 30%, transparent) 75%),
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--bdr) 30%, transparent) 75%);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
}
#tool-workspace .color-preview-card strong {
  font-family: var(--font-mono);
  color: var(--txt);
}
#tool-workspace .color-preview-card small {
  color: var(--txt3);
}
#tool-workspace .color-copy-card {
  text-align: left;
  cursor: pointer;
}
#tool-workspace .palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin-top: 10px;
}
#tool-workspace .palette-card {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  color: var(--txt);
  text-align: left;
  cursor: pointer;
  font: inherit;
}
#tool-workspace .palette-card:hover,
#tool-workspace .color-copy-card:hover {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 8%, transparent);
}
#tool-workspace .palette-swatch {
  min-height: 92px;
  border-radius: calc(var(--r) - 3px);
  border: 0.5px solid var(--bdr2);
}
#tool-workspace .palette-card strong {
  font-family: var(--font-mono);
  font-size: 13px;
}
#tool-workspace .palette-card small {
  color: var(--txt3);
  font-size: 11px;
}
@media (max-width: 680px) {
  #tool-workspace .color-converter-layout {
    grid-template-columns: 1fr;
  }
}

/* === Timestamp Converter Tool === */
#tool-workspace .ts-card {
  background: var(--bg3);
  border: 0.5px solid var(--bdr);
  border-radius: var(--r2);
  padding: 18px;
  margin-bottom: 12px;
}
#tool-workspace .ts-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--txt3);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 10px;
}
#tool-workspace .ts-now {
  font-size: 28px;
  font-weight: 300;
  font-family: var(--font-mono);
  color: var(--brand);
  letter-spacing: -1px;
  margin-bottom: 4px;
}
#tool-workspace .ts-now-human {
  font-size: 13px;
  color: var(--txt2);
  margin-bottom: 12px;
}
#tool-workspace .ts-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
#tool-workspace .ts-input {
  flex: 1;
  min-width: 160px;
  height: 38px;
  padding: 0 12px;
  border-radius: var(--r);
  border: 0.5px solid var(--bdr2);
  background: var(--bg2);
  color: var(--txt);
  font-family: var(--font-mono);
  font-size: 14px;
  outline: none;
  transition: border-color .15s;
}
#tool-workspace .ts-input:focus {
  border-color: var(--brand);
}
#tool-workspace .result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}
@media (max-width: 480px) {
  #tool-workspace .result-grid {
    grid-template-columns: 1fr;
  }
}
#tool-workspace .res-item {
  background: var(--bg2);
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  padding: 10px 12px;
}
#tool-workspace .res-item-label {
  font-size: 10px;
  color: var(--txt3);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 3px;
}
#tool-workspace .res-item-val {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--txt);
  word-break: break-all;
}
#tool-workspace .copy-hint {
  font-size: 10px;
  color: var(--brand);
  cursor: pointer;
  margin-top: 2px;
  display: inline-block;
}
#tool-workspace .copy-hint:hover {
  text-decoration: underline;
}
#tool-workspace .divider-label {
  text-align: center;
  font-size: 11px;
  color: var(--txt3);
  padding: 4px 0;
  position: relative;
}
#tool-workspace .divider-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 42%;
  height: 0.5px;
  background: var(--bdr);
}
#tool-workspace .divider-label::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  width: 42%;
  height: 0.5px;
  background: var(--bdr);
}

/* === Word Counter Tool === */
#tool-workspace #text-input {
  height: 220px;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
}
#tool-workspace .stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 8px;
  margin-top: 14px;
}
#tool-workspace .stat-card {
  background: var(--bg3);
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  padding: 12px;
  text-align: center;
}
#tool-workspace .stat-val {
  font-size: 22px;
  font-weight: 300;
  color: var(--brand);
  font-family: var(--font-mono);
  letter-spacing: -1px;
}
#tool-workspace .stat-label {
  font-size: 10px;
  color: var(--txt3);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
#tool-workspace .toolbar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 12px;
}

/* === JSON Formatter Tool === */
#tool-workspace .tool-area {
  display: flex;
  gap: 0;
  width: 100%;
  align-items: stretch;
}
#tool-workspace #left-editor-wrap {
  width: calc(50% - 4px);
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
#tool-workspace #right-editor-wrap {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
#tool-workspace .resize-divider {
  width: 8px;
  background: transparent;
  position: relative;
  cursor: col-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  flex-shrink: 0;
}
#tool-workspace .resize-divider::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 3px;
  width: 2px;
  background: var(--bdr);
  transition: background 0.15s;
}
#tool-workspace .resize-divider:hover::before {
  background: var(--brand);
}
#tool-workspace .divider-btn {
  width: 16px;
  height: 32px;
  border: 0.5px solid var(--bdr);
  border-radius: 4px;
  background: var(--bg2);
  color: var(--txt3);
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  cursor: pointer;
  z-index: 10;
  font-size: 11px;
  transition: background 0.15s, color 0.15s;
}
#tool-workspace .divider-btn:hover {
  background: var(--brand-l);
  color: var(--brand);
  border-color: var(--brand-border);
}
@media (max-width: 600px) {
  #tool-workspace .tool-area {
    flex-direction: column;
  }
  #tool-workspace #left-editor-wrap,
  #tool-workspace #right-editor-wrap {
    width: 100% !important;
  }
  #tool-workspace .resize-divider {
    display: none !important;
  }
}
#tool-workspace .editor-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
#tool-workspace .editor-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--txt3);
  text-transform: uppercase;
  letter-spacing: .06em;
}
#tool-workspace .tool-area textarea {
  height: 260px;
}
.workspace.tbx-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  padding: 18px;
  overflow: auto;
}
#tool-workspace .err-msg {
  font-size: 12px;
  color: #E24B4A;
  padding: 8px 10px;
  background: #FEF2F2;
  border-radius: 6px;
  display: none;
  margin-bottom: 12px;
}
.dark #tool-workspace .err-msg {
  background: rgba(226, 75, 74, 0.12);
}
#tool-workspace .err-msg.show {
  display: block;
}
#tool-workspace .stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
#tool-workspace .stat-item {
  font-size: 11px;
  color: var(--txt3);
}
#tool-workspace .stat-item strong {
  color: var(--brand);
  font-weight: 500;
}
#tool-workspace .json-search-bar {
  display: grid;
  grid-template-columns: auto minmax(120px, 1fr) auto auto auto auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  padding: 6px 8px;
  background: var(--bg2);
}
#tool-workspace .json-search-bar > i {
  color: var(--txt3);
}
#tool-workspace .json-search-bar input {
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  color: var(--txt);
  font: inherit;
  font-size: 13px;
}
#tool-workspace .json-search-bar [data-json-search-count] {
  color: var(--txt3);
  font-size: 12px;
  white-space: nowrap;
}
#tool-workspace .json-search-hit {
  border-radius: 3px;
  background: color-mix(in srgb, #facc15 38%, transparent) !important;
}
#tool-workspace .json-search-current {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
  background: color-mix(in srgb, var(--brand) 18%, #facc15 42%) !important;
}
#tool-workspace .json-tree-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
  color: var(--txt3);
  font-size: 12px;
}
#tool-workspace .json-tree-toolbar .tb-btn {
  margin: 0;
  padding: 5px 9px;
  font-size: 12px;
}

/* === Base64 Encoder / URL Encoder Shared Mode Tabs === */
#tool-workspace .mode-tabs {
  display: flex;
  gap: 0;
  border: 0.5px solid var(--bdr2);
  border-radius: var(--r);
  overflow: hidden;
  margin-bottom: 14px;
  width: fit-content;
  background: var(--bg2);
}
#tool-workspace .mode-tab {
  padding: 6px 16px;
  font-size: 13px;
  border: none;
  background: none;
  color: var(--txt2);
  cursor: pointer;
  transition: all .15s;
  font-family: var(--font);
}
#tool-workspace .mode-tab.active {
  background: var(--brand);
  color: #fff;
}
#tool-workspace .res-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--txt3);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 6px;
  margin-top: 14px;
}

/* === Base64 Encoder Tool === */
#tool-workspace #input-text {
  height: 140px;
}
#tool-workspace .result-box {
  background: var(--bg3);
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  word-break: break-all;
  min-height: 60px;
  color: var(--txt);
  display: none;
}
#tool-workspace .result-box.show {
  display: block;
}

/* === PDF Merge Tool === */
#tool-workspace .pdf-merge-settings {
  display: grid;
  grid-template-columns: minmax(240px, 560px);
  gap: 16px;
  align-items: end;
}
#tool-workspace .pdf-merge-settings input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 0 12px;
  background: var(--bg);
  color: var(--txt);
  font: inherit;
}
#tool-workspace .pdf-merge-queue {
  margin-top: 18px;
}
#tool-workspace .pdf-merge-order-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
#tool-workspace .pdf-merge-order-head strong,
#tool-workspace .pdf-merge-order-head span {
  display: block;
}
#tool-workspace .pdf-merge-order-head strong {
  color: var(--txt);
  font-size: 15px;
}
#tool-workspace .pdf-merge-order-head span {
  margin-top: 4px;
  color: var(--txt2);
  font-size: 13px;
}
#tool-workspace .pdf-merge-list {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}
#tool-workspace .pdf-merge-item {
  display: grid;
  grid-template-columns: 34px 34px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 72px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 10px 12px;
  background: var(--bg);
  transition: border-color .15s, box-shadow .15s, opacity .15s;
}
#tool-workspace .pdf-merge-item.dragging {
  opacity: .58;
  border-color: var(--brand);
  box-shadow: 0 8px 20px rgba(16, 185, 129, .12);
}
#tool-workspace .pdf-merge-item.error {
  border-color: rgba(239, 68, 68, .35);
  background: rgba(239, 68, 68, .04);
}
#tool-workspace .pdf-merge-item.reading {
  opacity: .78;
}
#tool-workspace .pdf-merge-drag,
#tool-workspace .pdf-merge-index {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r);
}
#tool-workspace .pdf-merge-drag {
  cursor: grab;
  color: var(--txt3);
  background: var(--bg2);
}
#tool-workspace .pdf-merge-drag:active {
  cursor: grabbing;
}
#tool-workspace .pdf-merge-index {
  background: var(--brand-l);
  color: var(--brand);
  font-weight: 800;
}
#tool-workspace .pdf-merge-info {
  min-width: 0;
}
#tool-workspace .pdf-merge-info strong,
#tool-workspace .pdf-merge-info small {
  display: block;
}
#tool-workspace .pdf-merge-info strong {
  overflow: hidden;
  color: var(--txt);
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#tool-workspace .pdf-merge-info small {
  margin-top: 5px;
  color: var(--txt2);
  font-size: 12px;
}
#tool-workspace .pdf-merge-item.error .pdf-merge-info small {
  color: #dc2626;
}
#tool-workspace .pdf-merge-item-actions {
  display: flex;
  gap: 6px;
}
#tool-workspace .pdf-merge-preview {
  margin-top: 18px;
  padding: 0;
  border: 0;
  background: transparent;
}
#tool-workspace .pdf-merge-result {
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 18px;
  background: var(--bg2);
}
#tool-workspace .pdf-merge-result > i {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: var(--r);
  background: var(--brand-l);
  color: var(--brand);
  font-size: 24px;
}
#tool-workspace .pdf-merge-result strong,
#tool-workspace .pdf-merge-result span,
#tool-workspace .pdf-merge-result small {
  display: block;
}
#tool-workspace .pdf-merge-result strong {
  color: var(--txt);
  font-size: 17px;
}
#tool-workspace .pdf-merge-result span {
  margin-top: 4px;
  color: var(--txt2);
  word-break: break-word;
}
#tool-workspace .pdf-merge-result small {
  margin-top: 5px;
  color: var(--txt3);
}
#tool-workspace .pdf-merge-result.empty {
  color: var(--txt2);
}
#tool-workspace .pdf-merge-result.success {
  border-color: rgba(16, 185, 129, .35);
  background: rgba(16, 185, 129, .06);
}
#tool-workspace .pdf-merge-result.error {
  border-color: rgba(239, 68, 68, .35);
  background: rgba(239, 68, 68, .05);
}
#tool-workspace .pdf-merge-result.error > i {
  background: rgba(239, 68, 68, .12);
  color: #dc2626;
}
#tool-workspace .pdf-merge-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}

/* === PDF Split Tool === */
#tool-workspace .pdf-split-file-list {
  margin-top: 18px;
}
#tool-workspace .pdf-split-file-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 14px;
  background: var(--bg2);
}
#tool-workspace .pdf-split-file-card.error {
  border-color: rgba(239, 68, 68, .35);
  background: rgba(239, 68, 68, .05);
}
#tool-workspace .pdf-split-file-card.reading {
  opacity: .82;
}
#tool-workspace .pdf-split-file-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--r);
  background: var(--brand-l);
  color: var(--brand);
  font-size: 24px;
}
#tool-workspace .pdf-split-file-card.error .pdf-split-file-icon {
  background: rgba(239, 68, 68, .12);
  color: #dc2626;
}
#tool-workspace .pdf-split-file-info {
  min-width: 0;
}
#tool-workspace .pdf-split-file-info span,
#tool-workspace .pdf-split-file-info strong,
#tool-workspace .pdf-split-file-info small {
  display: block;
}
#tool-workspace .pdf-split-file-info span {
  color: var(--txt3);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}
#tool-workspace .pdf-split-file-info strong {
  overflow: hidden;
  margin-top: 4px;
  color: var(--txt);
  font-size: 15px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#tool-workspace .pdf-split-file-info small {
  margin-top: 5px;
  color: var(--txt2);
}
#tool-workspace .pdf-split-file-card.error .pdf-split-file-info small {
  color: #dc2626;
}
#tool-workspace .pdf-split-file-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
#tool-workspace .pdf-split-panel {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}
#tool-workspace .pdf-split-mode {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
#tool-workspace .pdf-split-mode button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: calc(var(--r) - 2px);
  background: transparent;
  color: var(--txt2);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
#tool-workspace .pdf-split-mode button.active {
  border-color: rgba(16, 185, 129, .35);
  background: var(--brand-l);
  color: var(--brand);
}
#tool-workspace .pdf-split-rule textarea,
#tool-workspace .pdf-split-output input,
#tool-workspace .pdf-split-rule input {
  width: 100%;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 10px 12px;
  background: var(--bg);
  color: var(--txt);
  font: inherit;
}
#tool-workspace .pdf-split-rule input,
#tool-workspace .pdf-split-output input {
  height: 44px;
}
#tool-workspace .pdf-split-rule textarea {
  min-height: 116px;
  resize: vertical;
}
#tool-workspace .pdf-split-output {
  display: grid;
  grid-template-columns: minmax(240px, 560px);
}
#tool-workspace .pdf-split-preview {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 10px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 12px;
  background: var(--bg2);
  color: var(--txt2);
  line-height: 1.5;
}
#tool-workspace .pdf-split-preview i {
  margin-top: 2px;
  font-size: 18px;
}
#tool-workspace .pdf-split-preview.ok {
  border-color: rgba(16, 185, 129, .28);
  background: rgba(16, 185, 129, .06);
  color: var(--txt);
}
#tool-workspace .pdf-split-preview.ok i {
  color: var(--brand);
}
#tool-workspace .pdf-split-preview.error {
  border-color: rgba(239, 68, 68, .3);
  background: rgba(239, 68, 68, .05);
  color: #dc2626;
}
#tool-workspace .pdf-split-preview small {
  color: var(--txt3);
}
#tool-workspace .pdf-split-preview-area {
  margin-top: 18px;
  padding: 0;
  border: 0;
  background: transparent;
}
#tool-workspace .pdf-split-result {
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 18px;
  background: var(--bg2);
}
#tool-workspace .pdf-split-result > i,
#tool-workspace .pdf-split-result-head > i {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: var(--r);
  background: var(--brand-l);
  color: var(--brand);
  font-size: 24px;
}
#tool-workspace .pdf-split-result strong,
#tool-workspace .pdf-split-result span,
#tool-workspace .pdf-split-result small {
  display: block;
}
#tool-workspace .pdf-split-result strong {
  color: var(--txt);
  font-size: 17px;
}
#tool-workspace .pdf-split-result span {
  margin-top: 4px;
  color: var(--txt2);
  word-break: break-word;
}
#tool-workspace .pdf-split-result small {
  margin-top: 5px;
  color: var(--txt3);
}
#tool-workspace .pdf-split-result.success {
  border-color: rgba(16, 185, 129, .35);
  background: rgba(16, 185, 129, .06);
}
#tool-workspace .pdf-split-result.error {
  border-color: rgba(239, 68, 68, .35);
  background: rgba(239, 68, 68, .05);
}
#tool-workspace .pdf-split-result.error > i {
  background: rgba(239, 68, 68, .12);
  color: #dc2626;
}
#tool-workspace .pdf-split-result.empty {
  color: var(--txt2);
}
#tool-workspace .pdf-split-result.multi {
  display: grid;
  gap: 14px;
}
#tool-workspace .pdf-split-result-head {
  display: flex;
  align-items: center;
  gap: 14px;
}
#tool-workspace .pdf-split-result-list {
  display: grid;
  gap: 8px;
  max-height: 360px;
  overflow: auto;
  padding-right: 4px;
}
#tool-workspace .pdf-split-result-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
#tool-workspace .pdf-split-result-list-head strong {
  color: var(--txt);
  font-size: 14px;
}
#tool-workspace .pdf-split-result-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 80px auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  padding: 10px 12px;
  background: var(--bg);
}
#tool-workspace .pdf-split-result-item span {
  overflow: hidden;
  margin: 0;
  color: var(--txt);
  text-overflow: ellipsis;
  white-space: nowrap;
}
#tool-workspace .pdf-split-result-item small {
  margin: 0;
}
#tool-workspace .pdf-split-result-more {
  border: 1px dashed var(--bdr);
  border-radius: var(--r);
  padding: 12px;
  color: var(--txt2);
  text-align: center;
}
#tool-workspace .pdf-split-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 720px) {
  #tool-workspace .pdf-merge-settings,
  #tool-workspace .pdf-merge-item,
  #tool-workspace .pdf-split-file-card,
  #tool-workspace .pdf-split-mode,
  #tool-workspace .pdf-split-result-item {
    grid-template-columns: 1fr;
  }
  #tool-workspace .pdf-merge-item {
    align-items: stretch;
  }
  #tool-workspace .pdf-merge-drag,
  #tool-workspace .pdf-merge-index {
    display: inline-grid;
  }
  #tool-workspace .pdf-merge-item-actions,
  #tool-workspace .pdf-merge-result-actions,
  #tool-workspace .pdf-split-file-actions,
  #tool-workspace .pdf-split-result-actions {
    margin-left: 0;
  }
  #tool-workspace .pdf-merge-result,
  #tool-workspace .pdf-split-result {
    align-items: flex-start;
    flex-direction: column;
  }
  #tool-workspace .pdf-split-result-list-head {
    align-items: stretch;
    flex-direction: column;
  }
  #tool-workspace .pdf-split-output {
    grid-template-columns: 1fr;
  }
}

/* === URL Encoder Tool === */
#tool-workspace #url-input {
  height: 120px;
}
#tool-workspace #url-output {
  height: 120px;
  background: var(--bg2);
}

/* JSON tree viewer & path tracker */
#tool-workspace .json-tree-container {
  font-family: Consolas, Monaco, monospace;
  font-size: 13px;
  line-height: 1.5;
  color: var(--txt);
  padding: 12px;
  background: var(--bg2);
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  height: 260px;
  overflow: auto;
}
#tool-workspace .json-list {
  list-style: none;
  padding-left: 20px;
  margin: 0;
}
#tool-workspace .json-node.collapsed > .json-list {
  display: none;
}
#tool-workspace .json-node.collapsed > .json-bracket::after {
  content: '...';
  color: var(--txt3);
  padding: 0 4px;
}
#tool-workspace .json-toggle {
  cursor: pointer;
  color: var(--txt3);
  margin-right: 4px;
  display: inline-block;
  transition: transform 0.15s;
}
#tool-workspace .json-node.collapsed > .json-toggle {
  transform: rotate(-90deg);
}
#tool-workspace .json-key {
  color: var(--brand);
  cursor: pointer;
  font-weight: 500;
}
#tool-workspace .json-key:hover {
  text-decoration: underline;
}
#tool-workspace .json-val.string { color: #D97706; }
#tool-workspace .json-val.number { color: #2563EB; }
#tool-workspace .json-val.boolean { color: #DC2626; }
#tool-workspace .json-val.null { color: #6B7280; }
#tool-workspace .json-val:hover {
  background: var(--brand-l);
  cursor: pointer;
}
#tool-workspace .json-string-expanded {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  min-width: min(100%, 520px);
  max-width: 100%;
  vertical-align: top;
}
#tool-workspace .json-string-text {
  display: block;
  max-width: 100%;
  color: #D97706;
  white-space: pre-wrap;
  word-break: break-word;
}
#tool-workspace .embedded-json {
  margin: 4px 0 4px 0;
  padding: 6px 8px;
  border-left: 2px solid var(--brand-border);
  background: color-mix(in srgb, var(--brand-l) 45%, transparent);
}
#tool-workspace .json-embed-label {
  color: var(--txt3);
  font-size: 12px;
}
#tool-workspace .json-index {
  color: var(--txt3);
  margin-right: 4px;
}
#tool-workspace .json-path-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg3);
  border: 0.5px solid var(--bdr);
  padding: 8px 12px;
  margin-top: 8px;
  border-radius: var(--r);
  font-family: monospace;
  font-size: 12px;
}
#tool-workspace .json-copy-panel {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  padding: 8px 10px;
  background: var(--bg2);
}
#tool-workspace .json-copy-panel[hidden] {
  display: none !important;
}
#tool-workspace .json-copy-panel > div {
  min-width: 160px;
  flex: 1;
}
#tool-workspace .json-copy-panel span,
#tool-workspace .json-copy-panel strong {
  display: block;
}
#tool-workspace .json-copy-panel span {
  color: var(--txt3);
  font-size: 11px;
}
#tool-workspace .json-copy-panel strong {
  overflow: hidden;
  color: var(--brand);
  font-family: monospace;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#tool-workspace .json-copy-panel .tb-btn {
  margin: 0;
  padding: 5px 9px;
  font-size: 12px;
}

/* Tab button styling */
#tool-workspace .tab-group .tab-btn {
  background: none;
  border: none;
  color: var(--txt2);
  cursor: pointer;
  padding: 2px 8px;
  font-size: 10px;
  transition: background 0.15s, color 0.15s;
}
#tool-workspace .tab-group .tab-btn.active {
  background: var(--brand);
  color: #fff;
}

/* Input collapse logic styles */
#tool-workspace .tool-area.input-collapsed {
  grid-template-columns: 1fr;
}
#tool-workspace .tool-area.input-collapsed .editor-wrap:first-child {
  display: none !important;
}
#tool-workspace .tool-area.input-collapsed textarea,
#tool-workspace .tool-area.input-collapsed .json-tree-container {
  height: 480px;
}

/* Calculator */
#tool-workspace .calculator-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 14px;
  align-items: start;
}
#tool-workspace .calc-tabs {
  grid-column: 1 / -1;
  display: flex;
  gap: 8px;
  padding: 4px;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
}
#tool-workspace .calc-tab {
  flex: 1;
  min-height: 38px;
  border: 0;
  border-radius: calc(var(--r) - 3px);
  background: transparent;
  color: var(--txt2);
  cursor: pointer;
  font-weight: 700;
}
#tool-workspace .calc-tab.active {
  background: var(--brand);
  color: #fff;
}
#tool-workspace .calc-panel {
  display: none;
  min-width: 0;
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  padding: 14px;
}
#tool-workspace .calc-panel.active {
  display: block;
}
#tool-workspace .calc-display {
  display: grid;
  gap: 8px;
}
#tool-workspace .calc-display label {
  color: var(--txt2);
  font-size: 12px;
  font-weight: 700;
}
#tool-workspace .calc-expression {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg);
  color: var(--txt);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 20px;
  line-height: 1.25;
  min-height: 46px;
  padding: 10px 12px;
}
#tool-workspace .calc-expression:focus {
  border-color: var(--brand);
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 15%, transparent);
}
#tool-workspace .calc-result {
  overflow-wrap: anywhere;
  border-radius: var(--r);
  background: linear-gradient(135deg, color-mix(in srgb, var(--brand) 12%, var(--bg)), var(--bg));
  color: var(--txt);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 28px;
  font-weight: 800;
  min-height: 44px;
  padding: 12px;
  text-align: right;
}
#tool-workspace .calc-row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
#tool-workspace .calc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}
#tool-workspace .calc-actions .tb-btn {
  margin: 0;
}
#tool-workspace .calc-keypad {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
#tool-workspace .calc-keypad.scientific {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
#tool-workspace .calc-keypad.programmer {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
#tool-workspace .calc-key {
  min-height: 42px;
  border: 0.5px solid var(--bdr);
  border-radius: calc(var(--r) - 2px);
  background: var(--bg);
  color: var(--txt);
  cursor: pointer;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  font-weight: 800;
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
#tool-workspace .calc-key:hover {
  border-color: var(--brand);
  background: color-mix(in srgb, var(--brand) 8%, var(--bg));
  transform: translateY(-1px);
}
#tool-workspace .calc-key.util {
  color: var(--brand);
}
#tool-workspace .prog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 12px;
}
#tool-workspace .prog-options {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
#tool-workspace .prog-options select {
  min-height: 34px;
  border: 0.5px solid var(--bdr);
  border-radius: calc(var(--r) - 2px);
  background: var(--bg);
  color: var(--txt);
  padding: 0 8px;
}
#tool-workspace .prog-signed {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--txt2);
  font-size: 12px;
  white-space: nowrap;
}
#tool-workspace .prog-conversions {
  display: grid;
  gap: 8px;
}
#tool-workspace .prog-conversions div {
  min-width: 0;
  border: 0.5px solid var(--bdr);
  border-radius: calc(var(--r) - 2px);
  background: var(--bg);
  padding: 8px;
}
#tool-workspace .prog-conversions span {
  display: block;
  color: var(--txt3);
  font-size: 11px;
  font-weight: 800;
  margin-bottom: 4px;
}
#tool-workspace .prog-conversions button {
  width: 100%;
  overflow: hidden;
  border: 0;
  background: transparent;
  color: var(--txt);
  cursor: copy;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 800;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#tool-workspace .calc-history {
  border: 0.5px solid var(--bdr);
  border-radius: var(--r);
  background: var(--bg2);
  padding: 12px;
}
#tool-workspace .calc-history-title {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--txt2);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 8px;
}
#tool-workspace .calc-history-list {
  display: grid;
  gap: 6px;
  color: var(--txt3);
  font-size: 12px;
}
#tool-workspace .calc-history-list button {
  min-width: 0;
  border: 0.5px solid var(--bdr);
  border-radius: calc(var(--r) - 2px);
  background: var(--bg);
  color: var(--txt);
  cursor: pointer;
  padding: 8px;
  text-align: left;
}
#tool-workspace .calc-history-list span,
#tool-workspace .calc-history-list strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#tool-workspace .calc-history-list span {
  color: var(--txt3);
  font-size: 11px;
}
#tool-workspace .calc-history-list strong {
  margin-top: 3px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (max-width: 860px) {
  #tool-workspace .calculator-workspace,
  #tool-workspace .prog-layout {
    grid-template-columns: 1fr;
  }
  #tool-workspace .calc-keypad.scientific,
  #tool-workspace .calc-keypad.programmer {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
@media (max-width: 520px) {
  #tool-workspace .calc-tabs {
    flex-direction: column;
  }
  #tool-workspace .calc-result {
    font-size: 22px;
  }
  #tool-workspace .calc-keypad,
  #tool-workspace .calc-keypad.scientific,
  #tool-workspace .calc-keypad.programmer {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Fullscreen stretch improvements */
.workspace.tbx-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  padding: 18px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100vh;
  box-sizing: border-box;
  overflow: hidden !important;
}

/* Ensure all normal elements inside fullscreen workspace don't collapse */
.workspace.tbx-fullscreen > * {
  flex-shrink: 0;
}

/* Allow core editors and results to grow and share the remaining space */
.workspace.tbx-fullscreen .tool-area,
.workspace.tbx-fullscreen #input-text,
.workspace.tbx-fullscreen #result-box {
  flex: 1;
  min-height: 0;
  flex-shrink: 1;
}

.workspace.tbx-fullscreen #result-box {
  overflow: auto;
}

/* Tool area details for side-by-side splits (JSON Formatter) */
.workspace.tbx-fullscreen .tool-area {
  display: flex !important;
  align-items: stretch;
  gap: 0;
}
.workspace.tbx-fullscreen .editor-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
}
.workspace.tbx-fullscreen #left-editor-wrap {
  flex: none; /* keep its dragged width */
}
.workspace.tbx-fullscreen #right-editor-wrap {
  flex: 1;
}
.workspace.tbx-fullscreen .tool-area.input-collapsed #right-editor-wrap {
  flex: 1;
  width: 100%;
}
.workspace.tbx-fullscreen .editor-label,
.workspace.tbx-fullscreen .stats {
  flex-shrink: 0;
}
.workspace.tbx-fullscreen [data-output-container="format"]:not([hidden]):not([style*="display: none"]):not([style*="display:none"]),
.workspace.tbx-fullscreen [data-output-container="tree"]:not([hidden]):not([style*="display: none"]):not([style*="display:none"]) {
  flex: 1;
  min-height: 0;
  display: flex !important;
  flex-direction: column;
}
.workspace.tbx-fullscreen [data-output-container][hidden],
.workspace.tbx-fullscreen [data-output-container="format"][style*="display: none"],
.workspace.tbx-fullscreen [data-output-container="format"][style*="display:none"],
.workspace.tbx-fullscreen [data-output-container="tree"][style*="display: none"] {
  display: none !important;
}
.workspace.tbx-fullscreen [data-output-container="tree"][style*="display:none"] {
  display: none !important;
}
.workspace.tbx-fullscreen textarea {
  flex: 1;
  min-height: 0;
  height: auto !important;
}
.workspace.tbx-fullscreen #json-tree-viewer {
  flex: 1;
  min-height: 0;
  height: auto !important;
  max-height: none !important;
}
.workspace.tbx-fullscreen .json-path-bar {
  flex-shrink: 0;
}