:root{
  --bg: #0b1020;
  --panel: rgba(255,255,255,0.06);
  --panel2: rgba(255,255,255,0.085);
  --text: #e8ecff;
  --muted: rgba(232,236,255,0.7);
  --border: rgba(255,255,255,0.12);
  --accent: #7aa2ff;
  --danger: #ff6b6b;
  --viewer-top-offset: 92px;
  --options-panel-width: 300px;
}

*{ box-sizing: border-box; }

html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 700px at 20% 0%, #17204a 0%, var(--bg) 55%), var(--bg);
  color: var(--text);
}

.topbar{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.25);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand .title{ display: flex; align-items: baseline; gap: 8px; font-weight: 700; letter-spacing: 0.2px; }
.brand .version{ font-size: 12px; font-weight: 400; color: var(--muted); }
.brand .subtitle{ color: var(--muted); font-size: 12px; margin-top: 2px; }

.actions{ display:flex; gap:10px; }

.btn{
  appearance:none;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 10px;
  cursor:pointer;
}
.btn:disabled{ opacity: 0.45; cursor: not-allowed; }
.btn:hover:not(:disabled){ background: rgba(255,255,255,0.10); border-color: rgba(255,255,255,0.18); }

.btn.btn-active{
  border-color: rgba(122,162,255,0.55);
  background: rgba(122,162,255,0.14);
}

.layout{
  display:grid;
  grid-template-columns: var(--options-panel-width) minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
}

.inputs{
  width: var(--options-panel-width);
  max-width: var(--options-panel-width);
}

@media (max-width: 1050px){
  .layout{ grid-template-columns: 1fr; }
  .inputs{
    width: auto;
    max-width: none;
  }
  .viewer{
    position: static;
    top: auto;
    transform: none;
    min-height: 0;
  }
}

.panel{
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 14px;
  overflow: hidden;
}

.viewer{
  position: sticky;
  top: var(--viewer-top-offset);
  transform: none;
  align-self: start;
  display: flex;
  flex-direction: column;
  height: calc(100dvh - var(--viewer-top-offset) - 16px);
  max-height: calc(100dvh - var(--viewer-top-offset) - 16px);
  min-height: 0;
}

.inputs{ padding: 14px; }

.dropRow{ display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 520px){ .dropRow{ grid-template-columns: 1fr; } }

.dropZone{
  border: 1px dashed rgba(255,255,255,0.25);
  background: rgba(0,0,0,0.18);
  border-radius: 14px;
  padding: 12px;
  min-height: 110px;
  display:flex;
  flex-direction: column;
  gap: 6px;
  justify-content: center;
  position: relative;
  outline: none;
}
.dropZone.dragOver{ border-color: var(--accent); background: rgba(122,162,255,0.12); }
.dropTitle{ font-weight: 700; }
.dropHint{ color: var(--muted); font-size: 12px; }
.fileInput{ width:100%; }

.controls{ margin-top: 14px; display:flex; flex-direction: column; gap:10px; }
.modeGroup{
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
}

.modeGroup > .controlRow{
  border: 0;
  border-radius: 0;
  background: transparent;
}

.modeGroup > .controlRow + .controlRow{
  border-top: 1px solid rgba(255,255,255,0.08);
}

.boxesGroup{
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
}

.alignGroup{
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
}

.boxesGroup > .controlRow{
  border: 0;
  border-radius: 0;
  background: transparent;
}

.alignGroup > .controlRow{
  border: 0;
  border-radius: 0;
  background: transparent;
}

.boxesGroup > #boxesParams{
  padding: 0 10px 10px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.alignGroup > .controlRow + .controlRow{
  border-top: 1px solid rgba(255,255,255,0.08);
}

.controlRow{
  display:grid;
  grid-template-columns: 110px 1fr 56px;
  gap: 10px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
}
.controlRow > .value{ text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }
.label{ color: var(--muted); font-size: 12px; }
.select, .range{
  width:100%;
}

.controlRow > .select,
.controlRow > .range{
  min-width: 0;
}

.controlRow.compactActionRow{
  grid-template-columns: 110px minmax(0, 1fr) auto;
}

.controlRow.compactActionRow > .value{
  min-width: max-content;
}

.controlRow.wideSelectRow{
  grid-template-columns: 110px minmax(0, 1fr);
}

#fadeControls{
  grid-template-columns: 110px 1fr auto;
}

#fadeControls > .label{
  grid-column: 1;
  grid-row: 1;
}

#fadeControls > .fadeOverlayHint{
  color: var(--muted);
  font-size: 12px;
}

#fadeControls > .value{
  grid-column: 3;
  grid-row: 1;
}

#fadeControls > .toggle{
  grid-column: 1 / -1;
  grid-row: 2;
  justify-self: start;
}

.boxesSlidersGroup{
  margin-top: 6px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.boxesSlidersGroup .controlRow{
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 8px 0;
}

.boxesSlidersGroup .controlRow + .controlRow{
  border-top: 1px solid rgba(255,255,255,0.08);
}

#boxesPresetControls{
  grid-template-columns: 110px 1fr 56px;
}

#boxesPresetControls > .label{
  grid-column: 1;
}

#boxesPresetControls > .select{
  grid-column: 2 / -1;
  min-width: 0;
}

#boxesPresetControls > .value{
  display: none;
}

#boxesPresetControls > .boxesPresetActions{
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  gap: 6px;
  align-items: center;
  margin-top: 6px;
}

#boxesAutoTuneBtn{
  white-space: nowrap;
  flex: 0 0 auto;
}

.toggle{
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  user-select: none;
}

.toggle input{
  accent-color: var(--accent);
}

.alignOptionsRow{
  grid-template-columns: 110px 1fr 56px;
}

.alignOptionsToggles{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.alignOptionsRow .toggle{
  justify-self: start;
}

.alignOptionsRow .value{
  min-height: 1px;
}

.help{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  margin-left: 6px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.22);
  background: rgba(255,255,255,0.06);
  color: rgba(232,236,255,0.85);
  font-size: 11px;
  line-height: 1;
  cursor: help;
}

.help:hover{
  border-color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.10);
}

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

.viewerHeader{
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 10px;
  background: var(--panel2);
}
.viewerTitle{ font-weight: 700; }
.viewerMeta{ color: var(--muted); font-size: 12px; }

.canvasWrap{
  position: relative;
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  background: #0a0f1f;
  overflow: hidden;
  touch-action: none;
}

.emptyViewer{
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  padding: 14px;
}

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

.emptyViewerSplit{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  width: 100%;
  height: 100%;
}

.viewerDropZone{
  min-height: 0;
  height: 100%;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border-style: solid;
  border-color: rgba(255,255,255,0.16);
  background: rgba(5,10,24,0.48);
  text-align: center;
  overflow: hidden;
  transition: border-color 140ms ease, background-color 140ms ease, box-shadow 140ms ease;
}

.viewerDropZone.pasteTarget{
  border-color: rgba(122,162,255,0.45);
  background: rgba(122,162,255,0.06);
  box-shadow: 0 0 0 1px rgba(122,162,255,0.14), 0 0 10px rgba(122,162,255,0.10);
}

.viewerDropContent{
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.emptyViewerActions{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

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

.viewerPreview{
  position: absolute;
  inset: 0;
  display: block;
  pointer-events: none;
}

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

.viewerPreviewImg{
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: rgba(0,0,0,0.22);
}

.viewerPreviewClear{
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  background: rgba(5,10,24,0.74);
  color: rgba(255,255,255,0.92);
  font-size: 18px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  cursor: pointer;
}

.dropSubtitle{
  color: var(--muted);
  font-size: 12px;
  margin-top: -2px;
}

.emptyViewerBrowseBtn{
  margin-top: 8px;
}

.emptyViewerPasteBtn{
  margin-top: 8px;
}

.viewerFileInput{
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

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

.canvasWrap:focus-visible{
  outline: 2px solid rgba(122,162,255,0.9);
  outline-offset: -2px;
}

.navOverlay{
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: inline-flex;
  gap: 8px;
  padding: 8px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(0,0,0,0.22);
  backdrop-filter: blur(5px);
  z-index: 6;
}

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

.canvasLabels{
  position: absolute;
  inset: 12px 12px auto 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  z-index: 5;
  pointer-events: none;
}

.canvasLabel{
  position: relative;
  justify-self: start;
  max-width: min(520px, 46vw);
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(0,0,0,0.22);
  backdrop-filter: blur(5px);
  color: rgba(232,236,255,0.92);
  font-size: 12px;
  line-height: 1.2;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.30);
  transition: opacity 140ms ease;
  pointer-events: auto;
  overflow: visible;
}

.canvasLabelText{
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canvasLabelDetails{
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 190px;
  max-width: min(320px, 42vw);
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 12px;
  background: rgba(7,11,22,0.96);
  box-shadow: 0 12px 30px rgba(0,0,0,0.32);
  color: rgba(232,236,255,0.96);
  font-size: 12px;
  line-height: 1.4;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 140ms ease, transform 140ms ease, visibility 140ms ease;
  pointer-events: none;
}

.canvasLabel:hover .canvasLabelDetails,
.canvasLabel:focus-within .canvasLabelDetails{
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.canvasLabelA{
  justify-self: start;
}

.canvasLabelB{
  justify-self: end;
}

.canvasLabelB .canvasLabelDetails{
  left: auto;
  right: 0;
}

.canvasWrap.mode-split .canvasLabels{
  grid-template-columns: 1fr 1fr;
}

.navBtn{
  appearance: none;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.035);
  color: var(--text);
  padding: 7px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  line-height: 1;
  user-select: none;
}

.navBtn:hover{
  background: rgba(255,255,255,0.065);
  border-color: rgba(255,255,255,0.20);
}

.navBtn:active{
  transform: translateY(1px);
}

.miniBtn{
  appearance: none;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 4px 8px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 800;
  line-height: 1;
  user-select: none;
}

.analyzePanel{
  margin-top: 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0,0,0,0.18);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.analyzeActions{
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.analyzeRow{
  display: grid;
  grid-template-columns: 1fr minmax(160px, 260px) auto;
  gap: 10px;
  align-items: center;
}

.analyzeProgressText{
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.analyzeProgress{
  width: 100%;
  height: 10px;
}

.analyzeOutput{
  width: 100%;
  resize: vertical;
  min-height: 140px;
  padding: 10px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.22);
  border-radius: 12px;
  color: rgba(232,236,255,0.92);
  font-size: 12px;
  line-height: 1.35;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.analyzeOverlayCard{
  width: min(760px, 100%);
}

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

.analyzeOverlayPreviewPane{
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.analyzeOverlayPreviewLabel{
  color: var(--muted);
  font-size: 12px;
}

.analyzeOverlayPreviewImage{
  width: 100%;
  min-height: 160px;
  max-height: 280px;
  object-fit: contain;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  background: rgba(0,0,0,0.24);
}

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

@media (max-width: 720px){
  .analyzeOverlayPreviewGrid{
    grid-template-columns: 1fr;
  }
}

.optimizeOverlay{
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(3, 6, 16, 0.7);
  backdrop-filter: blur(7px);
}

.optimizeOverlay[hidden]{
  display: none;
}

.optimizeCard{
  width: min(460px, 100%);
  padding: 18px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 18px;
  background: rgba(11, 16, 32, 0.96);
  box-shadow: 0 18px 50px rgba(0,0,0,0.36);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.optimizeHeader{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.optimizeTitle{
  font-size: 16px;
  font-weight: 700;
}

.optimizeElapsed,
.optimizeStatus{
  color: var(--muted);
  font-size: 12px;
}

.optimizeStatus{
  min-height: 16px;
}

.optimizeProgress{
  width: 100%;
  height: 12px;
}

.miniBtn:hover{
  background: rgba(255,255,255,0.10);
  border-color: rgba(255,255,255,0.20);
}

.miniBtn:disabled{
  opacity: 0.45;
  cursor: not-allowed;
  filter: grayscale(0.25);
}

.miniBtn:hover:disabled{
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
}

.miniBtn:active{
  transform: translateY(1px);
}

canvas{
  width: 100%;
  height: 100%;
  display:block;
}

.canvasWrap.bg-dark{ background: #0a0f1f; }
.canvasWrap.bg-light{ background: #e8ecff; }
.canvasWrap.bg-checker{
  background-color: #0a0f1f;
  background-image:
    linear-gradient(45deg, rgba(255,255,255,0.07) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,0.07) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.07) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.07) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0px;
}

.boxTooltip{
  position: absolute;
  z-index: 6;
  max-width: min(320px, calc(100% - 24px));
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  background: rgba(7, 11, 22, 0.96);
  box-shadow: 0 12px 30px rgba(0,0,0,0.32);
  color: rgba(232,236,255,0.96);
  font-size: 12px;
  line-height: 1.4;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  pointer-events: none;
}

.boxTooltip[hidden]{
  display: none;
}

.sliderOverlay{
  position:absolute;
  inset:0;
  pointer-events:none;
  z-index: 4;
}

.sliderOverlay.viewerSliderFade{
  inset: auto auto 62px 50%;
  width: 60%;
  height: 32px;
  transform: translateX(-50%);
  pointer-events: auto;
  touch-action: none;
}

.sliderOverlay.viewerSliderFade::before{
  content:"";
  position:absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
  background: rgba(122,162,255,0.95);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.45), 0 0 12px rgba(122,162,255,0.32);
}

.sliderHandle{
  position:absolute;
  top:0;
  bottom:0;
  width: 2px;
  background: rgba(122,162,255,0.95);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.45), 0 0 12px rgba(122,162,255,0.55);
  pointer-events: auto;
  cursor: ew-resize;
  z-index: 5;
  touch-action: none;
}

.sliderOverlay.viewerSliderFade .sliderHandle{
  top: 50%;
  bottom: auto;
  width: 24px;
  height: 24px;
  margin-left: -12px;
  transform: translateY(-50%);
  border-radius: 999px;
  background: rgba(122,162,255,0.95);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.45), 0 0 12px rgba(122,162,255,0.55);
}

.navOverlay{
  pointer-events: auto;
}

.sliderHandle::after{
  content:"";
  position:absolute;
  left: -11px;
  top: 50%;
  width: 24px;
  height: 24px;
  transform: translateY(-50%);
  border-radius: 999px;
  background: rgba(122,162,255,0.95);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.45);
}

.sliderOverlay.viewerSliderFade .sliderHandle::after{
  display: none;
}

.statusRow{
  display:flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

.status{
  min-width: 0;
}

.statusMetrics{
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  min-width: 0;
}

.metricsText{
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metricsSeparator{
  color: var(--muted);
}

.metricsChip{
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: inherit;
  font: inherit;
  padding: 0;
  cursor: pointer;
}

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

.metricsChip.is-active{
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer{
  padding: 12px 16px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}