.tool-app.tool-wrap{margin:0 auto;padding:4px 4px 2px}
.tool-app.tool-wrap *{box-sizing:border-box}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.cp-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;align-items:start}
.cp-main,.cp-side{display:flex;flex-direction:column;gap:14px;min-width:0}
.tool-app .card{background:var(--zl-surface);border:1px solid var(--zl-line);border-radius:18px;padding:14px;display:flex;flex-direction:column;gap:12px;overflow:visible;box-shadow:none}
.card-title{margin:0;font:600 16px var(--zl-font-head);color:var(--zl-ink)}
.mono{font-family:var(--zl-font-mono);font-variant-numeric:tabular-nums}
.tiny{margin:0;font-size:14px;color:var(--zl-muted)}
.btn-small{min-height:44px!important;font-size:14px!important;padding:0 14px!important}
/* upload */
.cp-upload{padding:10px}
.file-drop{display:flex;align-items:center;gap:14px;padding:14px 16px;text-align:left}
.file-drop .file-icon{flex:none}
.drop-text{flex:1;min-width:0}
.drop-sub{margin:2px 0 0;color:var(--zl-muted);font-size:14.5px}
.file-drop .file-btn{flex:none}
.thumb-row{display:flex;align-items:center;gap:10px}
.thumb-row[hidden]{display:none}
.thumb-strip{display:flex;gap:8px;overflow-x:auto;flex:1;min-width:0;padding:2px}
.thumb{width:52px;height:52px;flex:none;padding:0;border:1.5px solid var(--zl-line);border-radius:12px;overflow:hidden;background:var(--zl-surface-2);cursor:pointer}
.thumb.active{border-color:var(--zl-accent);box-shadow:0 0 0 2px var(--zl-accent)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
/* preview */
.tool-app .preview-card{order:0;margin-top:0}
.preview-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:stretch}
.preview-chip{min-width:84px;border:1px solid var(--zl-line);background:var(--zl-surface-2);border-radius:12px;padding:6px 10px;display:flex;flex-direction:column;justify-content:center;gap:1px}
.chip-status{flex:1 1 200px;min-width:0}
.preview-chip-label{font:500 12px var(--zl-font-head);color:var(--zl-muted)}
.preview-chip-value{font-size:14px;color:var(--zl-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.view-btns{display:flex;gap:6px;align-items:center}
.tool-app .mini-btn{min-height:44px;padding:0 14px;font-size:14px}
.tool-app .mini-btn.active{background:var(--zl-tint);border-color:var(--zl-accent);color:var(--zl-accent-strong)}
html[data-theme="dark"] .tool-app .mini-btn.active{color:var(--zl-ink)}
.canvas-wrap{position:relative;height:min(62vh,560px);min-height:300px;border-radius:14px;overflow:hidden;display:grid;place-items:center;background-color:var(--zl-surface-2);
  background-image:linear-gradient(45deg,var(--zl-tint) 25%,transparent 25%,transparent 75%,var(--zl-tint) 75%),linear-gradient(45deg,var(--zl-tint) 25%,transparent 25%,transparent 75%,var(--zl-tint) 75%);background-size:18px 18px;background-position:0 0,9px 9px}
.canvas-wrap.is-actual{overflow:auto;place-items:start}
.canvas-stage{position:relative;line-height:0}
#editCanvas{display:block;cursor:crosshair;touch-action:none}
.canvas-wrap.is-actual #editCanvas{touch-action:pan-x pan-y;image-rendering:pixelated}
#editCanvas[hidden]{display:none}
.canvas-empty{margin:0;padding:24px;text-align:center;color:var(--zl-muted);font-size:15px;line-height:1.5;max-width:420px}
.canvas-empty[hidden]{display:none}
.crosshair{position:absolute;left:0;top:0;width:22px;height:22px;margin:-11px 0 0 -11px;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px rgba(16,42,44,.6);pointer-events:none;display:none}
.crosshair.show{display:block}
.image-meta{margin:0;font-size:13.5px;color:var(--zl-muted);overflow-wrap:anywhere}
.controls-inline{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:16px;align-items:start}
.controls-inline .checks{gap:0}
.controls-inline .check{min-height:34px}
/* selected color */
.picked-top{display:grid;grid-template-columns:84px 1fr;gap:12px;align-items:center}
.color-preview{width:84px;height:84px;border-radius:16px;border:1px solid var(--zl-line)}
.color-preview.is-empty{background:repeating-linear-gradient(45deg,var(--zl-surface-2) 0 8px,var(--zl-tint) 8px 16px)}
.color-main{display:flex;flex-direction:column;gap:6px;min-width:0;align-items:flex-start}
.hex-main{font-size:22px;font-weight:600;color:var(--zl-ink)}
.color-name{font-size:14.5px;color:var(--zl-muted)}
.info-grid{display:flex;flex-direction:column;gap:6px}
.kv{display:grid;grid-template-columns:52px minmax(0,1fr) auto;align-items:center;gap:8px;border:1px solid var(--zl-line);border-radius:12px;padding:4px 4px 4px 10px;background:var(--zl-surface-2)}
.kv-label{font:600 12.5px var(--zl-font-head);color:var(--zl-muted)}
.kv-value{font-size:14px;color:var(--zl-ink);overflow-wrap:anywhere}
.copy-btn{min-height:40px;min-width:64px;padding:0 12px;border-radius:999px;border:1.5px solid var(--zl-line-2);background:var(--zl-surface);color:var(--zl-ink);font:500 13.5px var(--zl-font-head);cursor:pointer}
.copy-btn:hover{border-color:var(--zl-accent)}
.tool-app .copy-btn:disabled{background:transparent;color:#7d9391;border-color:var(--zl-line)}
/* controls */
.control-row{display:flex;flex-direction:column;gap:6px}
.control-row label{display:flex;justify-content:space-between;font:500 14px var(--zl-font-head);color:var(--zl-ink)}
.control-row .value{font-family:var(--zl-font-mono);color:var(--zl-muted);font-size:13.5px}
.tool-app .control-row select{width:100%;min-height:44px;padding:0 12px;font-size:15px;border:1.5px solid var(--zl-line-2);border-radius:12px;background:var(--zl-surface);color:var(--zl-ink)}
.control-row input[type=range]{width:100%;margin:0;min-height:28px}
.checks{display:flex;flex-direction:column;gap:2px}
.check{display:flex;align-items:center;gap:10px;min-height:40px;font-size:15px;color:var(--zl-ink);cursor:pointer}
.check input{width:20px;height:20px;margin:0}
.split-2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.split-2 button{width:100%}
/* saved + palette */
.history-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}
.history-grid:empty{display:none}
.swatch{position:relative;aspect-ratio:1/1;border-radius:12px;border:1px solid var(--zl-line);cursor:pointer;padding:0;overflow:hidden;min-height:44px}
.swatch-label{position:absolute;left:0;right:0;bottom:0;font-size:10px;line-height:1.6;color:#fff;background:rgba(16,42,44,.55);text-align:center;opacity:0}
.swatch:hover .swatch-label,.swatch:focus-visible .swatch-label{opacity:1}
.palette-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
.palette-grid:empty{display:none}
.palette-item{display:flex;flex-direction:column;gap:3px;padding:4px;border:1px solid var(--zl-line);border-radius:12px;background:var(--zl-surface);cursor:pointer;color:var(--zl-ink)}
.palette-item:hover{border-color:var(--zl-accent)}
.palette-color{display:block;width:100%;aspect-ratio:1/1;border-radius:8px;border:1px solid rgba(16,42,44,.08)}
.palette-code{font-size:11px;text-align:center}
.palette-share{font-size:11px;text-align:center;color:var(--zl-muted)}
/* outside elements: magnifier + toast */
.cp-loupe{position:fixed;left:0;top:0;z-index:999;pointer-events:none;display:none;background:var(--zl-surface);border:1px solid var(--zl-line-2);border-radius:16px;padding:6px;box-shadow:var(--zl-shadow-sm)}
.cp-loupe.show{display:block}
.cp-loupe canvas{display:block;width:150px;height:150px;border-radius:10px;image-rendering:pixelated}
.cp-loupe-hex{display:block;text-align:center;font:600 13px var(--zl-font-mono);color:var(--zl-ink);padding-top:4px}
.cp-toast{position:fixed;left:50%;bottom:20px;z-index:1000;transform:translate(-50%,10px);background:var(--zl-ink);color:var(--zl-surface);padding:10px 16px;border-radius:999px;font:500 14px var(--zl-font-head);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}
.cp-toast.show{opacity:1;transform:translate(-50%,0)}
@media (max-width:980px){
.cp-layout{grid-template-columns:1fr;gap:14px}
.cp-main,.cp-side{display:contents}
.tool-app .cp-upload{order:1}.tool-app .preview-card{order:2}.tool-app .selected-card{order:3}.tool-app .picker-controls{order:4}.tool-app .saved-card{order:5}.tool-app .palette-card{order:6}
.controls-inline{grid-template-columns:1fr 1fr}
.controls-inline .checks{grid-column:1/-1}
.canvas-wrap{height:min(60vh,460px)}
}
@media (max-width:560px){
.controls-inline{grid-template-columns:1fr}
.controls-inline .check{min-height:44px}
.file-drop{flex-wrap:wrap;justify-content:center;text-align:center}
.drop-text{flex-basis:100%}
.preview-chip{flex:1 1 40%}
.view-btns{flex:1 1 100%}
.view-btns .mini-btn{flex:1}
.canvas-wrap{min-height:260px;height:52vh}
.palette-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}