.dls-kb{
  --dls-border:#dbe2ea;
  --dls-border-strong:#c8d2df;
  --dls-bg:#f5f7fb;
  --dls-panel:#ffffff;
  --dls-text:#172033;
  --dls-muted:#667085;
  --dls-primary:#2563eb;
  --dls-primary-dark:#1d4ed8;
  --dls-primary-soft:#eff6ff;
  --dls-danger:#b42318;
  --dls-success:#067647;
  --dls-radius:14px;
  width:100%;
  max-width:1480px;
  margin:0 auto;
  color:var(--dls-text);
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:14px;
  line-height:1.45;
  box-sizing:border-box;
}
.dls-kb *{box-sizing:border-box}
.dls-kb button,.dls-kb input,.dls-kb select,.dls-kb textarea{font:inherit}
.dls-kb button{-webkit-tap-highlight-color:transparent}

/* Header and primary actions */
.dls-kb__header{display:flex;gap:20px;align-items:flex-start;justify-content:space-between;margin:0 0 14px}
.dls-kb__header>div:first-child{min-width:220px}
.dls-kb__title{margin:0;font-size:clamp(22px,2vw,30px);line-height:1.15;letter-spacing:-.02em}
.dls-kb__subtitle{margin:6px 0 0;color:var(--dls-muted);font-size:13px;max-width:520px}
.dls-kb__toolbar,.dls-kb__row{display:flex;gap:8px;align-items:center}
.dls-kb__toolbar{justify-content:flex-end;flex-wrap:wrap}
.dls-kb__row--wrap{flex-wrap:wrap}
.dls-kb__btn,.dls-kb__select,.dls-kb input,.dls-kb textarea{font:inherit}
.dls-kb__btn{
  appearance:none;border:1px solid var(--dls-border);background:#fff;color:var(--dls-text);
  border-radius:10px;padding:9px 12px;cursor:pointer;min-height:40px;font-weight:600;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;line-height:1.2;
  transition:background .15s ease,border-color .15s ease,box-shadow .15s ease,transform .05s ease;
}
.dls-kb__btn:hover{background:#f8fafc;border-color:var(--dls-border-strong)}
.dls-kb__btn:active{transform:translateY(1px)}
.dls-kb__btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.dls-kb__btn:focus-visible,.dls-kb input:focus-visible,.dls-kb select:focus-visible,.dls-kb textarea:focus-visible{outline:3px solid rgba(37,99,235,.22);outline-offset:1px;border-color:var(--dls-primary)}
.dls-kb__btn--primary{background:var(--dls-primary);border-color:var(--dls-primary);color:#fff;box-shadow:0 1px 2px rgba(16,24,40,.08)}
.dls-kb__btn--primary:hover{background:var(--dls-primary-dark);border-color:var(--dls-primary-dark)}
.dls-kb__btn--danger{color:#fff;background:var(--dls-danger);border-color:var(--dls-danger)}
.dls-kb__filebtn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center}
.dls-kb__filebtn input{position:absolute;inset:0;opacity:0;cursor:pointer}
.dls-kb__zoom{width:auto;min-width:88px}

/* Simple first-time guide */
.dls-kb__steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:0 0 14px}
.dls-kb__step{position:relative;min-width:0;border:1px solid var(--dls-border);background:#fff;border-radius:12px;padding:10px 10px 10px 42px;min-height:64px}
.dls-kb__step>span{position:absolute;left:10px;top:11px;width:24px;height:24px;border-radius:50%;background:var(--dls-primary-soft);color:var(--dls-primary-dark);display:grid;place-items:center;font-weight:800;font-size:12px}
.dls-kb__step strong{display:block;font-size:12px;margin-bottom:2px}
.dls-kb__step small{display:block;color:var(--dls-muted);font-size:11px;line-height:1.3}

.dls-kb__notice{padding:11px 13px;margin:0 0 12px;border-radius:10px;background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;font-weight:600;font-size:13px}

/* Workspace */
.dls-kb__workspace{display:grid;grid-template-columns:minmax(260px,300px) minmax(440px,1fr) minmax(280px,320px);gap:14px;align-items:start}
.dls-kb__panel{background:var(--dls-panel);border:1px solid var(--dls-border);border-radius:var(--dls-radius);max-height:calc(100vh - 120px);overflow:auto;box-shadow:0 1px 2px rgba(16,24,40,.04);scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent}
.dls-kb__panel-head{position:sticky;top:0;z-index:5;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);padding:13px 14px 11px;border-bottom:1px solid var(--dls-border)}
.dls-kb__panel-head strong{display:block;font-size:14px}
.dls-kb__panel-head small{display:block;margin-top:2px;color:var(--dls-muted);font-size:11px;font-weight:500}
.dls-kb__panel details{border-bottom:1px solid var(--dls-border);background:#fff}
.dls-kb__panel details:last-child{border-bottom:0}
.dls-kb__panel summary{cursor:pointer;padding:13px 14px;font-weight:750;user-select:none;min-height:46px;display:flex;align-items:center}
.dls-kb__panel summary:hover{background:#f8fafc}
.dls-kb__section{padding:0 14px 14px;display:grid;gap:11px}
.dls-kb__section>label{display:grid;gap:6px;font-size:12px;font-weight:650;color:#344054}
.dls-kb__section input[type="text"],.dls-kb__section input[type="number"],.dls-kb__section textarea,.dls-kb__select{width:100%;border:1px solid var(--dls-border);border-radius:9px;padding:9px 10px;background:#fff;color:var(--dls-text);min-height:40px}
.dls-kb__section textarea{resize:vertical;min-height:72px}
.dls-kb__section input[type="color"]{width:100%;height:44px;border:1px solid var(--dls-border);border-radius:9px;background:#fff;padding:4px;cursor:pointer}
.dls-kb__section input[type="range"]{width:100%;accent-color:var(--dls-primary);min-height:24px}
.dls-kb__check{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center;gap:7px!important;font-weight:550!important}
.dls-kb__check input{width:16px;height:16px}
.dls-kb__grid2{grid-template-columns:1fr 1fr}
.dls-kb__help{font-size:11px;color:var(--dls-muted);margin:0;line-height:1.45}

/* Quick tools */
.dls-kb__tool-shortcuts{position:sticky;top:64px;z-index:4;display:flex;gap:6px;padding:8px 10px;overflow-x:auto;background:#fff;border-bottom:1px solid var(--dls-border);scrollbar-width:none}
.dls-kb__tool-shortcuts::-webkit-scrollbar{display:none}
.dls-kb__tool-shortcuts button{flex:0 0 auto;appearance:none;border:1px solid var(--dls-border);background:#f8fafc;border-radius:999px;padding:7px 10px;font-size:11px;font-weight:700;color:#344054;cursor:pointer;min-height:32px}
.dls-kb__tool-shortcuts button:hover{border-color:#93b4f4;background:var(--dls-primary-soft);color:var(--dls-primary-dark)}

/* Canvas */
.dls-kb__stage-wrap{min-width:0;width:100%}
.dls-kb__stage-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 0 8px}
.dls-kb__selection-pill{min-width:0;display:flex;align-items:center;gap:7px;border:1px solid #bfdbfe;background:var(--dls-primary-soft);color:#1d4ed8;border-radius:999px;padding:7px 11px;font-size:12px;font-weight:750;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dls-kb__selection-dot{width:8px;height:8px;flex:0 0 8px;border-radius:50%;background:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.dls-kb__stage-edit{display:none}
.dls-kb__stage{position:relative;width:100%;min-height:560px;display:flex;align-items:center;justify-content:center;overflow:auto;border:1px solid var(--dls-border);border-radius:var(--dls-radius);background-color:#fff;background-image:linear-gradient(45deg,#e8ecf2 25%,transparent 25%),linear-gradient(-45deg,#e8ecf2 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e8ecf2 75%),linear-gradient(-45deg,transparent 75%,#e8ecf2 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.dls-kb__stage .canvas-container{box-shadow:0 8px 32px rgba(16,24,40,.12);flex:0 0 auto;touch-action:none}
.dls-kb__stage canvas{display:block}
.dls-kb__stage-footer{display:flex;justify-content:space-between;gap:12px;color:var(--dls-muted);font-size:11px;padding:7px 4px}
.dls-kb__region-status{padding:9px 10px;border:1px solid #bfdbfe;background:var(--dls-primary-soft);color:#1d4ed8;border-radius:9px;font-size:12px;font-weight:700;line-height:1.35}
.dls-kb__region-overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:30;overflow:visible}
.dls-kb__region-outline{fill:rgba(37,99,235,.11);stroke:#2563eb;stroke-width:3;vector-effect:non-scaling-stroke;stroke-linejoin:round;stroke-dasharray:7 5}
.dls-kb__stage .upper-canvas{cursor:pointer}

/* Layers */
.dls-kb__layers{display:grid;gap:7px}
.dls-kb__layer{display:grid;grid-template-columns:auto minmax(0,1fr) repeat(4,auto);gap:5px;align-items:center;border:1px solid var(--dls-border);border-radius:9px;padding:7px;background:#fff}
.dls-kb__layer.is-active{border-color:#7aa5f8;box-shadow:0 0 0 2px rgba(37,99,235,.10) inset;background:#f8fbff}
.dls-kb__layer-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;font-weight:600}
.dls-kb__iconbtn{border:1px solid var(--dls-border);background:#fff;border-radius:7px;min-width:30px;height:30px;padding:3px 5px;cursor:pointer;display:grid;place-items:center}
.dls-kb__iconbtn:hover{background:#f8fafc}
.dls-kb__swatches{display:flex;gap:7px;flex-wrap:wrap;min-height:30px}
.dls-kb__swatch{width:30px;height:30px;border:1px solid var(--dls-border);border-radius:8px;cursor:pointer;box-shadow:0 1px 2px rgba(16,24,40,.08)}

/* Preview */
.dls-kb__dialog{border:0;border-radius:14px;padding:0;max-width:min(94vw,640px);box-shadow:0 20px 80px rgba(0,0,0,.28)}
.dls-kb__dialog::backdrop{background:rgba(15,23,42,.58)}
.dls-kb__dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;border-bottom:1px solid var(--dls-border);background:#fff}
.dls-kb__preview-checker{padding:20px;background-color:#fff;background-image:linear-gradient(45deg,#ddd 25%,transparent 25%),linear-gradient(-45deg,#ddd 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ddd 75%),linear-gradient(-45deg,transparent 75%,#ddd 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}
.dls-kb__preview-checker img{display:block;width:min(512px,82vw);height:auto;margin:auto;image-rendering:auto}

/* Mobile/tablet navigation is hidden on desktop. */
.dls-kb__mobile-tabs{display:none}

/* Medium desktop / tablet landscape */
@media (max-width:1180px) and (min-width:961px){
  .dls-kb__header{display:block}
  .dls-kb__toolbar{justify-content:flex-start;margin-top:12px}
  .dls-kb__workspace{grid-template-columns:minmax(250px,290px) minmax(420px,1fr)}
  .dls-kb__panel--right{grid-column:1/-1;max-height:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible}
  .dls-kb__panel--right>.dls-kb__panel-head{grid-column:1/-1;position:static}
  .dls-kb__panel--right details{border-right:1px solid var(--dls-border)}
  .dls-kb__panel--right details:nth-of-type(even){border-right:0}
  .dls-kb__steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* Phones and tablets */
@media (max-width:960px){
  .dls-kb{font-size:14px;max-width:100%;padding:0 2px}
  .dls-kb__header{display:block;margin-bottom:10px}
  .dls-kb__title{font-size:22px}
  .dls-kb__subtitle{font-size:12px}
  .dls-kb__toolbar{margin-top:10px;justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding:2px 1px 8px;scrollbar-width:none;overscroll-behavior-x:contain}
  .dls-kb__toolbar::-webkit-scrollbar{display:none}
  .dls-kb__toolbar>.dls-kb__btn,.dls-kb__toolbar>.dls-kb__filebtn,.dls-kb__toolbar>.dls-kb__select{flex:0 0 auto;min-height:44px}
  .dls-kb__steps{display:flex;overflow-x:auto;gap:7px;padding-bottom:4px;scrollbar-width:none}
  .dls-kb__steps::-webkit-scrollbar{display:none}
  .dls-kb__step{flex:0 0 210px;min-height:62px}
  .dls-kb__notice{font-size:12px;margin-bottom:9px}

  .dls-kb__mobile-tabs{position:sticky;top:var(--wp-admin--admin-bar--height,0px);z-index:50;display:grid;grid-template-columns:repeat(3,1fr);gap:5px;padding:6px;margin:0 0 10px;border:1px solid var(--dls-border);border-radius:12px;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 4px 16px rgba(16,24,40,.08)}
  .dls-kb__mobile-tab{appearance:none;border:0;background:transparent;border-radius:8px;padding:9px 6px;min-height:42px;color:#475467;font-size:12px;font-weight:750;cursor:pointer}
  .dls-kb__mobile-tab.is-active{background:var(--dls-primary);color:#fff;box-shadow:0 2px 5px rgba(37,99,235,.22)}

  .dls-kb__workspace{display:flex;flex-direction:column;gap:10px}
  .dls-kb__stage-wrap{order:1;width:100%}
  .dls-kb__panel--left{order:2;width:100%}
  .dls-kb__panel--right{order:3;width:100%}
  .dls-kb__panel{max-height:none;overflow:visible;border-radius:12px}
  .dls-kb__panel-head{position:static}
  .dls-kb__tool-shortcuts{position:sticky;top:58px;z-index:20}

  /* Canvas always stays available; the active tab controls which editor panel appears below it. */
  .dls-kb[data-mobile-view="canvas"] .dls-kb__panel--left,
  .dls-kb[data-mobile-view="canvas"] .dls-kb__panel--right{display:none}
  .dls-kb[data-mobile-view="design"] .dls-kb__panel--right{display:none}
  .dls-kb[data-mobile-view="layers"] .dls-kb__panel--left{display:none}

  .dls-kb__stage-toolbar{margin-bottom:7px}
  .dls-kb__stage-edit{display:inline-flex;flex:0 0 auto;min-height:36px;padding:7px 9px;font-size:11px}
  .dls-kb__selection-pill{font-size:11px;padding:7px 9px}
  .dls-kb__stage{width:100%;min-height:0;aspect-ratio:1/1;padding:6px;justify-content:center;align-items:center;overscroll-behavior:contain}
  .dls-kb__stage-footer{font-size:10px}

  .dls-kb__panel summary{min-height:50px;padding:14px}
  .dls-kb__section{padding:0 14px 15px;gap:12px}
  .dls-kb__btn{min-height:44px}
  .dls-kb__section input[type="text"],.dls-kb__section input[type="number"],.dls-kb__section textarea,.dls-kb__select{min-height:44px;font-size:16px}
  .dls-kb__section input[type="color"]{height:48px}
  .dls-kb__grid2{grid-template-columns:1fr 1fr}
  .dls-kb__row{flex-wrap:wrap}
  .dls-kb__row>.dls-kb__btn,.dls-kb__row>.dls-kb__filebtn{flex:1 1 130px}
  .dls-kb__layer{grid-template-columns:auto minmax(90px,1fr) repeat(4,auto)}
}

/* Small phones */
@media (max-width:560px){
  .dls-kb__header{padding:0 2px}
  .dls-kb__toolbar>.dls-kb__btn,.dls-kb__toolbar>.dls-kb__filebtn{padding:8px 10px;font-size:12px}
  .dls-kb__zoom{min-width:78px;font-size:12px}
  .dls-kb__steps{margin-bottom:10px}
  .dls-kb__step{flex-basis:190px;padding-left:40px}
  .dls-kb__step small{font-size:10px}
  .dls-kb__mobile-tabs{grid-template-columns:1fr 1fr 1.3fr}
  .dls-kb__mobile-tab{font-size:11px;padding-inline:4px}
  .dls-kb__stage-toolbar{align-items:stretch}
  .dls-kb__stage-edit{white-space:nowrap}
  .dls-kb__stage{border-radius:10px;padding:4px}
  .dls-kb__grid2{grid-template-columns:1fr 1fr;gap:8px}
  .dls-kb__section{padding-left:12px;padding-right:12px}
  .dls-kb__tool-shortcuts{padding-left:8px;padding-right:8px}
  .dls-kb__layer{grid-template-columns:auto minmax(72px,1fr) repeat(2,auto)}
  .dls-kb__layer .dls-kb__iconbtn:nth-last-child(-n+2){display:none}
  .dls-kb__preview-checker{padding:12px}
}

/* Very small phones */
@media (max-width:380px){
  .dls-kb__title{font-size:20px}
  .dls-kb__stage-edit{display:none}
  .dls-kb__selection-pill{width:100%}
  .dls-kb__grid2{grid-template-columns:1fr}
  .dls-kb__row>.dls-kb__btn,.dls-kb__row>.dls-kb__filebtn{flex-basis:100%}
}