/* === EXISTING BASE STYLES === */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
:root {
  --bg: #f5f0e8;
  --bg-deep: #ece5d8;
  --header-bg: #d4c5a9;
  --header-border: #c4b897;
  --accent: #8b6914;
  --accent-hover: #a07a1a;
  --text: #3d3428;
  --text-secondary: #7a6e5d;
  --text-muted: #a99e8e;
  --border: #c4a882;
  --border-light: #ddd0ba;
  --white: #fff;
  --card-bg: #faf7f1;
  --danger: #c0392b;
  --success: #27ae60;
  --upload-hover: #f0e9db;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(61,52,40,.08);
  --shadow-md: 0 4px 16px rgba(61,52,40,.1);
  --transition: .25s cubic-bezier(.4,0,.2,1);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
html { font-size:15px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* HEADER */
.header {
  background: linear-gradient(135deg, #2c2416 0%, #3d2e18 40%, #4a3520 100%);
  border-bottom: none;
  padding: 0 24px;
  position: sticky; top:0; z-index:100;
  box-shadow: 0 2px 16px rgba(44,36,22,.25), 0 1px 4px rgba(0,0,0,.15);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: stretch;
  min-height: 52px;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 28px;
  font-size: 1.08rem;
  font-weight: 700;
  color: #f5ead6;
  letter-spacing: .04em;
  user-select: none;
  flex-shrink: 0;
}
.logo-icon {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, #d4a24e 0%, #b8860b 100%);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(212,162,78,.4);
}

/* TABS - enhanced for more items */
.tabs {
  display: flex;
  align-items: stretch;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab-btn {
  position: relative;
  background: none;
  border: none;
  padding: 0 14px;
  font: inherit;
  font-size: .88rem;
  color: rgba(245,234,214,.55);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: .03em;
  border-radius: 6px 6px 0 0;
}
.tab-btn:hover {
  color: rgba(245,234,214,.9);
  background: rgba(255,255,255,.06);
}
.tab-btn.active {
  color: #f5ead6;
  font-weight: 600;
  background: rgba(255,255,255,.08);
}
.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 8px; right: 8px;
  height: 2.5px;
  background: linear-gradient(90deg, #d4a24e, #f0c66e);
  border-radius: 2px 2px 0 0;
  box-shadow: 0 0 8px rgba(212,162,78,.5);
}

/* SECOND TAB ROW */
.tabs-row2 {
  display: flex;
  align-items: stretch;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  border-top: 1px solid rgba(255,255,255,.08);
  width: 100%;
  flex-basis: 100%;
}
.tabs-row2 .tab-btn {
  font-size: .84rem;
  padding: 0 14px;
  min-height: 36px;
}
.tabs-row2::-webkit-scrollbar { display: none; }

/* MAIN CONTAINER */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

/* TAB PANELS */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* SECTION TITLES */
.section-label {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: .02em;
}

/* UPLOAD ZONES */
.upload-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.upload-row.single { grid-template-columns: 1fr; max-width: 540px; }
.upload-group {}
.upload-zone {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--card-bg);
  min-height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  overflow: hidden;
}
.upload-zone:hover, .upload-zone.dragover {
  background: var(--upload-hover);
  border-color: var(--accent);
}
.upload-zone.has-image {
  padding: 8px;
  border-style: solid;
  border-color: var(--border-light);
}
.upload-zone .upload-prompt { pointer-events: none; }
.upload-zone .upload-link {
  color: var(--accent);
  font-size: .93rem;
  font-weight: 500;
}
.upload-zone .upload-hint {
  color: var(--text-muted);
  font-size: .8rem;
}
.upload-zone input[type="file"] {
  position: absolute;
  inset:0;
  opacity:0;
  cursor: pointer;
  z-index: 1;
}
.upload-zone .preview-img {
  max-width: 100%;
  max-height: 280px;
  border-radius: 8px;
  object-fit: contain;
  display: none;
}
.upload-zone.has-image .preview-img { display: block; }
.upload-zone.has-image .upload-prompt { display: none; }
.upload-zone .remove-btn {
  position: absolute;
  top: 8px; right: 8px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(0,0,0,.55);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 14px;
  display: none;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  z-index: 2;
}
.upload-zone.has-image .remove-btn { display: flex; }
.upload-zone .remove-btn:hover { background: var(--danger); }

/* CONTROLS */
.controls {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 20px 32px;
}
.control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.control-label {
  font-size: .8rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.control-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 160px;
  height: 6px;
  background: var(--border-light);
  border-radius: 3px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,.18);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,.18);
  cursor: pointer;
}
.range-val {
  font-size: .82rem;
  color: var(--text-secondary);
  min-width: 28px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  width: 34px; height: 34px;
  border: 2px solid var(--border-light);
  border-radius: 8px;
  cursor: pointer;
  padding: 2px;
  background: var(--card-bg);
}
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 5px; }

/* CHECKBOX */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-size: .85rem;
  color: var(--text-secondary);
  user-select: none;
}
.checkbox-group input { accent-color: var(--accent); width:15px; height:15px; cursor:pointer; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 28px;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: .03em;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled {
  background: var(--border-light);
  color: var(--text-muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-secondary {
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--border-light);
}
.btn-secondary:hover { background: var(--upload-hover); border-color: var(--border); }

.btn-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* RESULT AREA */
.result-area {
  margin-top: 32px;
  display: none;
}
.result-area.visible { display: block; }
.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 12px;
}
.result-title {
  font-size: .95rem;
  font-weight: 600;
}
.result-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.result-controls .control-label { font-size: .78rem; }

.result-canvas-wrap {
  position: relative;
  background-image:
    linear-gradient(45deg, #e0dbd2 25%, transparent 25%),
    linear-gradient(-45deg, #e0dbd2 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0dbd2 75%),
    linear-gradient(-45deg, transparent 75%, #e0dbd2 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  padding: 16px;
}
.result-canvas-wrap canvas {
  max-width: 100%;
  max-height: 500px;
  border-radius: 6px;
}

/* PROCESSING OVERLAY */
.processing-overlay {
  position: fixed;
  inset: 0;
  background: rgba(245,240,232,.85);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  flex-direction: column;
  gap: 16px;
}
.processing-overlay.visible { display: flex; }
.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--border-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.processing-text {
  font-size: .9rem;
  color: var(--text-secondary);
}

/* HINT TEXT */
.hint-text {
  margin-top: 16px;
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 680px;
}

/* MASK EDITOR */
.mask-editor {
  margin-top: 24px;
  display: none;
}
.mask-editor.visible { display: block; }
.mask-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.mask-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border: 1.5px solid var(--border-light);
  border-radius: 7px;
  background: var(--card-bg);
  font: inherit;
  font-size: .82rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}
.mask-tool-btn:hover { border-color: var(--border); background: var(--upload-hover); }
.mask-tool-btn.active {
  border-color: var(--accent);
  background: rgba(139,105,20,.1);
  color: var(--text);
  font-weight: 600;
}
.mask-tool-btn .tool-icon {
  font-size: 1rem;
  line-height: 1;
}
.mask-toolbar .separator {
  width: 1px;
  height: 24px;
  background: var(--border-light);
  margin: 0 4px;
}
.mask-size-group {
  display: flex;
  align-items: center;
  gap: 6px;
}
.mask-size-group .control-label { font-size: .78rem; margin: 0; }
.mask-size-group input[type="range"] { width: 100px; height: 5px; }
.mask-size-val {
  font-size: .78rem;
  color: var(--text-secondary);
  min-width: 24px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.mask-canvas-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  background: #e8e3da;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}
.mask-canvas-wrap canvas {
  max-width: 100%;
  max-height: 520px;
  display: block;
}
.mask-canvas-wrap canvas.brush-cursor { cursor: none; }
.mask-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
  font-size: .78rem;
  color: var(--text-muted);
}
.mask-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
}
.mask-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  border: 1px solid rgba(0,0,0,.1);
}

/* PROTECT COLORS */
.protect-colors-section { margin-top: 16px; }
.protect-colors-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.protect-colors-header .section-label { margin-bottom: 0; }
.btn-add-protect {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 6px;
  border: 1.5px dashed var(--border); background: var(--card-bg);
  color: var(--accent); font-size: 18px; font-weight: 700;
  cursor: pointer; transition: all var(--transition); line-height: 1;
}
.btn-add-protect:hover { border-color: var(--accent); background: var(--upload-hover); }
.protect-color-list { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.protect-color-item {
  display: flex; align-items: center; gap: 6px;
  background: var(--card-bg); border: 1px solid var(--border-light);
  border-radius: 8px; padding: 5px 8px; animation: fadeUp .2s ease-out;
}
.protect-color-item input[type="color"] { width: 30px; height: 30px; }
.protect-color-item .protect-tol-group { display: flex; flex-direction: column; gap: 2px; }
.protect-color-item .protect-tol-group .control-label { font-size: .72rem; }
.protect-color-item .protect-tol-group input[type="range"] { width: 80px; height: 4px; }
.protect-color-item .protect-tol-val {
  font-size: .75rem; color: var(--text-secondary); min-width: 20px;
  text-align: right; font-variant-numeric: tabular-nums;
}
.btn-remove-protect {
  width: 22px; height: 22px; border-radius: 50%; border: none;
  background: transparent; color: var(--text-muted); font-size: 15px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.btn-remove-protect:hover { background: rgba(192,57,43,.12); color: var(--danger); }
.protect-hint { font-size: .78rem; color: var(--text-muted); margin-top: 6px; }

/* EYEDROPPER */
.btn-eyedropper {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 5px; padding: 6px 14px; border: 1.5px solid var(--border-light);
  border-radius: 7px; background: var(--card-bg); font: inherit;
  font-size: .82rem; color: var(--text-secondary); cursor: pointer;
  transition: all var(--transition); user-select: none; white-space: nowrap;
}
.btn-eyedropper:hover { border-color: var(--border); background: var(--upload-hover); }
.btn-eyedropper.active {
  border-color: var(--accent); background: rgba(139,105,20,.12);
  color: var(--text); font-weight: 600;
}
.upload-zone.eyedropper-mode { cursor: crosshair !important; }
.upload-zone.eyedropper-mode input[type="file"] { pointer-events: none; }
.color-pick-row { display: flex; align-items: center; gap: 8px; }

/* FADE-IN ANIMATION */
.tab-panel.active { animation: fadeUp .3s ease-out; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== LAYER COMPOSER STYLES ===== */
.lc-section {
  margin-bottom: 24px;
  padding: 18px;
  background: var(--card-bg);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-lg);
}
.lc-section-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: .02em;
}
.lc-num-input {
  width: 68px;
  padding: 6px 10px;
  border: 1.5px solid var(--border-light);
  border-radius: 7px;
  font: inherit;
  font-size: .85rem;
  background: var(--card-bg);
  color: var(--text);
}
.lc-select {
  padding: 6px 10px;
  border: 1.5px solid var(--border-light);
  border-radius: 7px;
  font: inherit;
  font-size: .85rem;
  background: var(--card-bg);
  color: var(--text);
}
.lc-frame-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-height: 260px;
  overflow-y: auto;
}
.lc-frame-grid canvas {
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: repeating-conic-gradient(#e0ddd5 0% 25%, #f5f2ec 0% 50%) 50% / 12px 12px;
  cursor: pointer;
}
.lc-frame-grid canvas.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}
/* --- Layer frame grid (weapon/effect sortable grids) --- */
.lc-layer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-height: 220px;
  overflow-y: auto;
  padding: 4px 0;
  min-height: 32px;
}
.lc-layer-grid-item {
  position: relative;
  cursor: grab;
  user-select: none;
  border: 1.5px solid var(--border-light);
  border-radius: 4px;
  background: repeating-conic-gradient(#e0ddd5 0% 25%, #f5f2ec 0% 50%) 50% / 12px 12px;
  transition: box-shadow .15s, border-color .15s;
}
.lc-layer-grid-item:hover {
  border-color: var(--border);
}
.lc-layer-grid-item.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}
.lc-layer-grid-item.dragging {
  opacity: .4;
}
.lc-layer-grid-item.drag-over {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(139,105,20,.3);
}
.lc-layer-grid-item canvas {
  display: block;
  pointer-events: none;
}
.lc-layer-grid-item .lc-frame-del {
  position: absolute; top: -4px; right: -4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--danger);
  color: #fff;
  border: 1.5px solid #fff;
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: opacity .15s;
  z-index: 2;
}
.lc-layer-grid-item:hover .lc-frame-del {
  opacity: 1;
}
.lc-layer-grid-item .lc-frame-idx {
  position: absolute; bottom: 1px; left: 1px;
  font-size: 9px;
  color: var(--text-muted);
  background: rgba(255,255,255,.75);
  padding: 0 3px;
  border-radius: 2px;
  pointer-events: none;
}
.lc-layer-grid-info {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.lc-layer-grid-info .lc-auto-tag {
  color: var(--accent);
  font-weight: 500;
}
.lc-canvas-row {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.lc-canvas-wrap {
  border: 1.5px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
  display: inline-block;
  flex-shrink: 0;
}
.lc-canvas-wrap canvas {
  display: block;
  max-width: 400px;
  max-height: 400px;
}
.lc-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 180px;
}
.lc-transform-area { }
.lc-frame-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
/* Interactive canvas cursor */
.lc-canvas-interactive { cursor: grab; image-rendering: pixelated; }
.lc-canvas-interactive:active { cursor: grabbing; }
.lc-canvas-interactive.pivot-mode { cursor: crosshair; }
/* Compose preview layout: large canvas left, controls right */
.lc-compose-layout {
  display: flex; gap: 16px; align-items: flex-start;
}
.lc-compose-left {
  flex: 1; min-width: 0;
}
.lc-compose-canvas-wrap {
  border: 1.5px solid var(--border-light); border-radius: 8px;
  overflow: auto;
  background: repeating-conic-gradient(#e0ddd5 0% 25%, #f5f2ec 0% 50%) 50% / 16px 16px;
  min-height: 400px; max-height: 80vh;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.lc-compose-canvas-wrap canvas {
  display: block;
  image-rendering: pixelated; image-rendering: crisp-edges;
  transform-origin: center center;
  /* width/height set dynamically by JS based on canvasZoom */
}
.lc-compose-right {
  width: 280px; min-width: 260px; max-width: 300px; flex-shrink: 0;
  display: flex; flex-direction: column; gap: 8px;
  border: 1.5px solid var(--border-light); border-radius: 8px;
  padding: 14px; background: var(--card-bg);
}
/* Tab switcher for weapon/effect */
.lc-tab-bar { display: flex; gap: 0; margin-bottom: 8px; }
.lc-tab-btn {
  padding: 5px 14px; font-size: .8rem; font-weight: 500;
  border: 1.5px solid var(--border-light); background: var(--card-bg);
  color: var(--text-secondary); cursor: pointer; transition: all .2s;
}
.lc-tab-btn:first-child { border-radius: 6px 0 0 6px; }
.lc-tab-btn:last-child { border-radius: 0 6px 6px 0; }
.lc-tab-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
/* Nudge / fine-adjust buttons - horizontal row */
.lc-nudge-row {
  display: flex; gap: 3px; align-items: center; flex-wrap: wrap; margin-top: 2px;
}
.lc-nudge-btn {
  width: 28px; height: 28px; padding: 0; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-light); border-radius: 5px; background: var(--card-bg);
  color: var(--text); cursor: pointer; font-size: .82rem; transition: background .15s;
}
.lc-nudge-btn:hover { background: var(--accent); color: #fff; }
/* Frame selection grid */
.lc-frame-select-grid {
  display: flex; flex-wrap: wrap; gap: 4px; max-height: 100px; overflow-y: auto;
}
.lc-frame-btn {
  width: 30px; height: 24px; padding: 0; font-size: .72rem; font-weight: 600;
  border: 1px solid var(--border-light); border-radius: 4px; background: var(--card-bg);
  color: var(--text); cursor: pointer; transition: all .15s;
}
.lc-frame-btn:hover { border-color: var(--accent); }
.lc-frame-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
/* Canvas hint text */
.lc-canvas-hint {
  font-size: .72rem; color: var(--text-muted); margin-top: 6px; line-height: 1.4;
}
/* Rotation slider row */
.lc-rot-row { display: flex; align-items: center; gap: 6px; }
.lc-rot-row input[type="range"] { flex: 1; min-width: 60px; }
/* Section label in right panel */
.lc-right-label { font-size: .8rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 2px; }
.lc-right-sublabel { font-size: .72rem; color: var(--text-muted); margin-bottom: 4px; }
.lc-tool-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.lc-layer-toggle { opacity: 1; }
.lc-layer-toggle.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.lc-layer-toggle:not(.active) { opacity: 0.5; text-decoration: line-through; }
.lc-preview-area {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.lc-preview-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.crop-inputs {
  display: flex; flex-wrap: wrap; gap: 16px; margin-top: 16px;
}
.crop-input-group {
  display: flex; flex-direction: column; gap: 4px;
}
.crop-input-group label { font-size: .8rem; color: var(--text-secondary); font-weight: 500; }
.crop-input-group input[type="number"] {
  width: 90px; padding: 6px 10px; border: 1.5px solid var(--border-light);
  border-radius: 7px; font: inherit; font-size: .85rem;
  background: var(--card-bg); color: var(--text);
  transition: border-color var(--transition);
}
.crop-input-group input[type="number"]:focus {
  outline: none; border-color: var(--accent);
}
.crop-preview-area {
  margin-top: 20px; display: none;
}
.crop-preview-area.visible { display: block; }

/* ============================================ */
/* === STITCH === */
/* ============================================ */
.stitch-images-list {
  display: flex; flex-direction: column; gap: 8px; margin-top: 12px;
}
.stitch-image-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; background: var(--card-bg);
  border: 1px solid var(--border-light); border-radius: 8px;
  transition: box-shadow var(--transition);
}
.stitch-image-item:hover { box-shadow: var(--shadow-sm); }
.stitch-image-thumb {
  width: 50px; height: 50px; border-radius: 5px;
  overflow: hidden; flex-shrink: 0; background: var(--bg-deep);
}
.stitch-image-thumb img {
  width: 100%; height: 100%; object-fit: contain;
}
.stitch-image-name {
  flex: 1; font-size: .82rem; color: var(--text-secondary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.stitch-image-size {
  font-size: .75rem; color: var(--text-muted);
  font-variant-numeric: tabular-nums; flex-shrink: 0;
}
.stitch-image-actions {
  display: flex; gap: 4px; flex-shrink: 0;
}
.stitch-move-btn {
  width: 26px; height: 26px; border-radius: 5px;
  border: 1px solid var(--border-light); background: var(--card-bg);
  color: var(--text-secondary); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; transition: all var(--transition);
}
.stitch-move-btn:hover { border-color: var(--accent); color: var(--accent); }
.stitch-move-btn:disabled { opacity: .3; cursor: not-allowed; }
.stitch-remove-btn {
  width: 26px; height: 26px; border-radius: 5px;
  border: 1px solid var(--border-light); background: var(--card-bg);
  color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; transition: all var(--transition);
}
.stitch-remove-btn:hover { border-color: var(--danger); color: var(--danger); }
.direction-toggle {
  display: flex; border: 1.5px solid var(--border-light); border-radius: 8px; overflow: hidden;
}
.direction-btn {
  padding: 7px 16px; border: none; background: var(--card-bg);
  font: inherit; font-size: .82rem; color: var(--text-secondary);
  cursor: pointer; transition: all var(--transition);
}
.direction-btn.active {
  background: var(--accent); color: #fff; font-weight: 600;
}
.direction-btn:hover:not(.active) { background: var(--upload-hover); }

/* ============================================ */
/* === SPRITE SHEET VIEWER === */
/* ============================================ */
}

/* MULTI-FILE UPLOAD ZONE */
.upload-zone-multi {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--card-bg);
  min-height: 120px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 6px;
  overflow: hidden;
}
.upload-zone-multi:hover, .upload-zone-multi.dragover {
  background: var(--upload-hover); border-color: var(--accent);
}
.upload-zone-multi input[type="file"] {
  position: absolute; width: 0; height: 0; overflow: hidden; opacity: 0; pointer-events: none;
}
.upload-zone-multi .upload-link { color: var(--accent); font-size: .93rem; font-weight: 500; }
.upload-zone-multi .upload-hint { color: var(--text-muted); font-size: .8rem; }

/* ============================================ */
/* === DWM SPLIT FRAME STYLES === */
.dwm-split-card {
  position: relative; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border-light); background: var(--card-bg);
  text-align: center; cursor: pointer; transition: all .15s;
}
.dwm-split-card:hover { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(139,105,20,.2); }
.dwm-split-card img {
  width: 100%; display: block; aspect-ratio: 1; object-fit: contain;
  background-image:
    linear-gradient(45deg, #e0dbd2 25%, transparent 25%),
    linear-gradient(-45deg, #e0dbd2 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0dbd2 75%),
    linear-gradient(-45deg, transparent 75%, #e0dbd2 75%);
  background-size: 10px 10px;
  background-position: 0 0, 0 5px, 5px -5px, -5px 0;
}
.dwm-split-card .dwm-frame-info {
  padding: 3px 4px; font-size: .7rem; color: var(--text-muted);
  background: var(--bg-deep); border-top: 1px solid var(--border-light);
}
.dwm-split-card .dwm-done-badge {
  position: absolute; top: 4px; left: 4px;
  background: var(--success); color: #fff;
  font-size: .62rem; padding: 2px 6px; border-radius: 4px;
  pointer-events: none;
}
.dwm-split-card .dwm-enlarge-hint {
  position: absolute; top: 4px; right: 4px;
  background: rgba(0,0,0,.55); color: #fff;
  font-size: .62rem; padding: 2px 6px; border-radius: 4px;
  opacity: 0; transition: opacity .15s; pointer-events: none;
}
.dwm-split-card:hover .dwm-enlarge-hint { opacity: 1; }

/* === GIF TOOL STYLES === */
/* ============================================ */
.gif-sub-tabs {
  display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap;
  position: relative; z-index: 2;
}
.gif-sub-btn {
  padding: 7px 18px; border: 1.5px solid var(--border-light); border-radius: 8px;
  background: var(--card-bg); font: inherit; font-size: .85rem;
  color: var(--text-secondary); cursor: pointer; transition: all var(--transition);
}
.gif-sub-btn:hover { border-color: var(--border); background: var(--upload-hover); }
.gif-sub-btn.active {
  background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 600;
}
.gif-sub-panel { display: none; }
.gif-sub-panel.active { display: block; }
.gif-frames-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px; margin-top: 14px;
}
.gif-frame-card {
  position: relative; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border-light); background: var(--card-bg);
  text-align: center;
}
.gif-frame-card img, .gif-frame-card canvas {
  width: 100%; display: block; aspect-ratio: 1; object-fit: contain;
  background-image:
    linear-gradient(45deg, #e0dbd2 25%, transparent 25%),
    linear-gradient(-45deg, #e0dbd2 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0dbd2 75%),
    linear-gradient(-45deg, transparent 75%, #e0dbd2 75%);
  background-size: 10px 10px;
  background-position: 0 0, 0 5px, 5px -5px, -5px 0;
}
.gif-frame-card .frame-info {
  padding: 3px 4px; font-size: .7rem; color: var(--text-muted);
  background: var(--bg-deep); border-top: 1px solid var(--border-light);
}
.gif-preview-wrap {
  margin-top: 16px; display: flex; align-items: flex-start; gap: 16px; flex-wrap: wrap;
}
.gif-preview-wrap img {
  max-width: 300px; max-height: 300px; border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
}
/* GIF decode frame card editable delay */
.gif-frame-card .frame-delay-input {
  width: 56px; padding: 2px 4px; border: 1px solid var(--border-light); border-radius: 4px;
  font: inherit; font-size: .7rem; text-align: center; background: var(--card-bg); color: var(--text);
}
.gif-frame-card .frame-delay-input:focus { border-color: var(--accent); outline: none; }
.gif-frame-card .frame-info-row {
  display: flex; align-items: center; justify-content: center; gap: 4px;
  padding: 4px 4px; font-size: .7rem; color: var(--text-muted);
  background: var(--bg-deep); border-top: 1px solid var(--border-light);
}
/* Eyedropper cursor mode */
.gif-frame-card.eyedropper-active { cursor: crosshair !important; }
.gif-frame-card.eyedropper-active img { pointer-events: none; }
/* Editable frame card in bg-removal grid */
.gif-frame-card.editable { cursor: pointer; transition: all .15s; }
.gif-frame-card.editable:hover { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(139,105,20,.2); }
.gif-frame-card.editing { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.gif-frame-card .frame-edit-hint {
  position:absolute;top:4px;right:4px;background:rgba(0,0,0,.55);color:#fff;
  font-size:.65rem;padding:2px 6px;border-radius:4px;opacity:0;transition:opacity .15s;pointer-events:none;
}
.gif-frame-card.editable:hover .frame-edit-hint { opacity:1; }

/* ============================================ */
/* === PIXEL EDITOR (精细处理) STYLES === */
/* ============================================ */
.editor-mode-select {
  display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 24px;
}
.editor-mode-card {
  flex: 1; min-width: 240px; padding: 24px; border-radius: var(--radius-lg);
  border: 2px solid var(--border-light); background: var(--card-bg);
  cursor: pointer; transition: all var(--transition); text-align: center;
}
.editor-mode-card:hover { border-color: var(--accent); background: var(--upload-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.editor-mode-card h3 { font-size: 1rem; margin-bottom: 8px; color: var(--text); }
.editor-mode-card p { font-size: .82rem; color: var(--text-secondary); line-height: 1.6; }
.editor-panel { display: none; }
.editor-panel.active { display: block; }
.editor-toolbar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 10px 14px; background: var(--card-bg);
  border: 1px solid var(--border-light); border-radius: var(--radius);
  margin-bottom: 12px;
}
.editor-tool-btn {
  padding: 6px 12px; border: 1.5px solid var(--border-light); border-radius: 6px;
  background: var(--white); font: inherit; font-size: .82rem;
  color: var(--text-secondary); cursor: pointer; transition: all var(--transition);
}
.editor-tool-btn:hover { border-color: var(--border); background: var(--upload-hover); }
.editor-tool-btn.active { border-color: var(--accent); background: rgba(139,105,20,.1); color: var(--text); font-weight: 600; }
.pixel-canvas-container {
  position: relative; width: 100%; height: 500px;
  border: 1px solid var(--border-light); border-radius: var(--radius-lg);
  overflow: hidden; cursor: crosshair;
  background-image:
    linear-gradient(45deg, #ccc 25%, transparent 25%),
    linear-gradient(-45deg, #ccc 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #ccc 75%),
    linear-gradient(-45deg, transparent 75%, #ccc 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}
.pixel-canvas-container canvas {
  position: absolute; top: 0; left: 0;
}

/* BRUSH CURSOR INDICATOR */
.brush-cursor {
  position: fixed;
  pointer-events: none;
  border: 2px solid rgba(139,105,20,.75);
  border-radius: 50%;
  z-index: 9999;
  display: none;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 1px rgba(255,255,255,.5), inset 0 0 0 1px rgba(255,255,255,.3);
  transition: width 0.1s ease, height 0.1s ease;
}
.brush-cursor.eraser-mode {
  border-color: rgba(192,57,43,.75);
  box-shadow: 0 0 0 1px rgba(255,255,255,.5), inset 0 0 0 1px rgba(255,255,255,.3);
}
.brush-cursor .brush-size-label {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  background: rgba(255,255,255,.85);
  padding: 1px 5px;
  border-radius: 3px;
  white-space: nowrap;
  pointer-events: none;
  line-height: 1.3;
  box-shadow: 0 1px 3px rgba(0,0,0,.12);
}
.zoom-indicator {
  position: absolute; bottom: 8px; right: 8px;
  padding: 4px 10px; background: rgba(0,0,0,.6);
  color: #fff; border-radius: 4px; font-size: .75rem;
  pointer-events: none;
}

/* RESPONSIVE */
@media (max-width: 700px) {
  .upload-row { grid-template-columns: 1fr; }
  .controls { gap: 14px 20px; }
  input[type="range"] { width: 120px; }
  .header-inner { min-height: 46px; }
  .tab-btn { padding: 0 10px; font-size: .82rem; }
  .main { padding: 20px 16px 40px; }
}

/* ============================================ */
/* === SPRITE SHEET TAB STYLES === */
/* ============================================ */
.ss-grid-wrap { margin-top: 16px; overflow-x: auto; }
.ss-grid {
  display: inline-grid; gap: 4px; padding: 4px;
  background: var(--card-bg); border: 1px solid var(--border-light); border-radius: var(--radius);
}
.ss-cell {
  position: relative; border: 2px solid var(--border-light); border-radius: 4px;
  overflow: hidden; background: var(--card-bg); user-select: none;
}
.ss-cell.selected { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(139,105,20,.2); }
.ss-cell canvas { display: block; width: 100%; height: 100%; }
.ss-cell-checkbox {
  position: absolute; top: 3px; left: 3px; z-index: 2;
  width: 16px; height: 16px; cursor: pointer; accent-color: var(--accent);
}
.ss-arrow-btn {
  position: absolute; z-index: 2; width: 18px; height: 18px;
  border: none; border-radius: 3px; background: rgba(0,0,0,.45); color: #fff;
  font-size: 10px; line-height: 1; cursor: pointer; display: flex;
  align-items: center; justify-content: center; opacity: 0;
  transition: opacity .15s;
}
.ss-cell:hover .ss-arrow-btn { opacity: 1; }
.ss-arrow-btn:hover { background: var(--accent); }
.ss-arrow-btn.arr-up { top: 3px; left: 50%; transform: translateX(-50%); }
.ss-arrow-btn.arr-down { bottom: 3px; left: 50%; transform: translateX(-50%); }
.ss-arrow-btn.arr-left { left: 3px; top: 50%; transform: translateY(-50%); }
.ss-arrow-btn.arr-right { right: 3px; top: 50%; transform: translateY(-50%); }
.ss-row-col-checks { display: flex; align-items: center; gap: 4px; margin-bottom: 4px; }
.ss-row-col-checks input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--accent); cursor: pointer; }
.ss-row-check-col { display: flex; flex-direction: column; gap: 4px; margin-right: 4px; justify-content: flex-start; padding-top: 24px; }
.ss-row-check-col input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--accent); cursor: pointer; }
.ss-anim-section { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border-light); }
.ss-anim-canvas-wrap {
  display: inline-block; border: 1px solid var(--border-light); border-radius: var(--radius);
  overflow: hidden; margin: 12px 0;
}
.ss-anim-canvas-wrap.checker-bg {
  background-image: linear-gradient(45deg, #ccc 25%, transparent 25%),
    linear-gradient(-45deg, #ccc 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #ccc 75%),
    linear-gradient(-45deg, transparent 75%, #ccc 75%);
  background-size: 12px 12px;
  background-position: 0 0, 0 6px, 6px -6px, -6px 0px;
}
.ss-anim-canvas-wrap.solid-bg { background: #ffffff; }
.ss-controls {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 10px;
}
.ss-controls button {
  padding: 6px 14px; border: 1.5px solid var(--border-light); border-radius: 7px;
  background: var(--card-bg); font: inherit; font-size: .82rem;
  color: var(--text); cursor: pointer; transition: all var(--transition);
}
.ss-controls button:hover { border-color: var(--accent); background: var(--upload-hover); }
.ss-controls button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.ss-speed-label { font-size: .82rem; color: var(--text-secondary); }
.ss-hint-text { font-size: .78rem; color: var(--text-muted); margin-top: 10px; line-height: 1.5; }

/* ========== SEARCH PANEL ========== */
.search-sub-tabs {
  display: flex; gap: 8px; margin-bottom: 12px;
}
.search-sub-tab {
  padding: 6px 16px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--card); color: var(--text); cursor: pointer; font-size: .85rem;
  transition: background .2s, color .2s;
}
.search-sub-tab.active {
  background: var(--primary); color: #fff; border-color: var(--primary);
}
.search-bar {
  display: flex; gap: 8px; margin-bottom: 16px;
}
.search-bar input {
  flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--card); color: var(--text); font-size: .9rem;
}
.search-bar button {
  padding: 8px 20px; background: var(--primary); color: #fff; border: none;
  border-radius: 6px; cursor: pointer; font-size: .9rem;
}
.search-bar button:hover { opacity: .85; }
.search-iframe-wrap {
  width: 100%; height: calc(100vh - 220px); min-height: 400px;
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
}
.search-iframe-wrap iframe {
  width: 100%; height: 100%; border: none;
}
.ai-chat-container {
  display: flex; flex-direction: column; height: calc(100vh - 260px); min-height: 350px;
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--card);
}
.ai-messages {
  flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px;
}
.ai-msg {
  max-width: 80%; padding: 10px 14px; border-radius: 10px; font-size: .9rem;
  line-height: 1.5; white-space: pre-wrap; word-break: break-word;
}
.ai-msg a { color: var(--primary); text-decoration: underline; }
.ai-msg-user {
  align-self: flex-end; background: var(--primary); color: #fff;
}
.ai-msg-ai {
  align-self: flex-start; background: var(--bg); color: var(--text);
  border: 1px solid var(--border);
}
.ai-input-row {
  display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--border);
}
.ai-input-row input {
  flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: .9rem;
}
.ai-input-row button {
  padding: 8px 16px; background: var(--primary); color: #fff; border: none;
  border-radius: 6px; cursor: pointer;
}
.ai-note {
  padding: 8px 16px; font-size: .8rem; color: var(--text-secondary);
  border-top: 1px solid var(--border);
}
.ai-note a { color: var(--primary); }
.search-sub-panel { display: none; }
.search-sub-panel.active { display: block; }