:root{
  --ink:#1B2130;--ink-2:#545C70;--ink-3:#8A90A0;--line:#E3E5EB;--panel:#fff;--panel-2:#F5F6F8;
  --stage:#CDD3DE;--accent:#2D4BE0;--sel:#F2367E;--danger:#C62F3B;
  --ui:"Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font:13.5px/1.45 var(--ui);color:var(--ink);background:var(--stage);overflow:hidden}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.muted{color:var(--ink-2)}
.help{color:var(--ink-3);font-size:12px;margin:6px 0 0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:7px;border:1px solid transparent;background:var(--panel-2);font-weight:600;cursor:pointer;white-space:nowrap}
.btn.small{padding:6px 11px;font-size:12.5px}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:#2440c9}
.btn.ghost{background:transparent;border-color:var(--line)}
.btn.ghost:hover{background:var(--panel-2)}
.btn.danger{background:transparent;border-color:#F0C9CC;color:var(--danger)}
.btn.danger:hover{background:#FCEEEF}
.btn.dark{background:rgba(255,255,255,.1);color:#fff}
.btn.dark:hover{background:rgba(255,255,255,.18)}
.icon-btn{display:inline-grid;place-items:center;min-width:26px;height:26px;padding:0 6px;border:0;border-radius:6px;background:transparent;cursor:pointer;color:var(--ink-2)}
.icon-btn:hover:not(:disabled){background:var(--panel-2);color:var(--ink)}
.icon-btn:disabled{opacity:.35;cursor:default}
.icon-btn.light{color:#fff;font-size:16px}
.icon-btn.light:hover:not(:disabled){background:rgba(255,255,255,.14);color:#fff}

/* layout */
.topbar{height:52px;display:flex;align-items:center;gap:18px;padding:0 14px;background:var(--ink);color:#fff}
.brand-mark{color:inherit;text-decoration:none;display:flex;align-items:center;gap:9px;font-weight:700;font-size:15px;letter-spacing:-.01em}
.brand-sub{font-weight:500;opacity:.6}
.logo{flex:none}
.logo-draw{stroke-dasharray:1;stroke-dashoffset:1;animation:logo-draw .9s cubic-bezier(.65,0,.35,1) .1s forwards}
.logo-node{transform-box:fill-box;transform-origin:center;transform:scale(0);animation:logo-node .35s cubic-bezier(.34,1.56,.64,1) forwards}
@keyframes logo-draw{to{stroke-dashoffset:0}}
@keyframes logo-node{to{transform:scale(1)}}
@media(prefers-reduced-motion:reduce){.logo-draw,.logo-node{animation:none;stroke-dashoffset:0;transform:none}}
.site-switch{display:flex;gap:8px;align-items:center}
.site-switch select{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:7px;padding:6px 8px;color:#fff;max-width:200px}
.site-switch option{color:var(--ink)}
.devices{display:flex;gap:2px;margin:0 auto;padding:3px;background:rgba(255,255,255,.08);border-radius:8px}
.devices button{border:0;background:transparent;color:rgba(255,255,255,.7);padding:5px 12px;border-radius:6px;cursor:pointer;font-weight:600;font-size:12.5px}
.devices button[aria-pressed="true"]{background:#fff;color:var(--ink)}
.top-actions{display:flex;align-items:center;gap:8px}
.save-status{font-size:12px;color:rgba(255,255,255,.65);min-width:104px;text-align:right}
.save-status::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:#3DD68C;margin-right:6px}
.save-status.bad{color:#FFB4BB}.save-status.bad::before{background:#FF5C6C}

.workspace{display:grid;grid-template-columns:260px 1fr 320px;height:calc(100vh - 52px)}
.left,.right{background:var(--panel);overflow:auto}
.left{border-right:1px solid var(--line)}
.right{border-left:1px solid var(--line);display:flex;flex-direction:column}
.panel{padding:14px;border-bottom:1px solid var(--line)}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.panel h2{font-size:12.5px;margin:0;color:var(--ink-2);font-weight:600}

.stage{overflow:hidden;padding:20px;background-color:var(--stage);background-image:radial-gradient(rgba(27,33,48,.16) 1px,transparent 1px);background-size:16px 16px}
.frame{height:100%;width:100%;margin:0 auto;background:#fff;box-shadow:0 1px 2px rgba(27,33,48,.1),0 18px 50px -18px rgba(27,33,48,.4);transition:width .25s ease,border-radius .25s;border-radius:6px;overflow:hidden}
.frame[data-device="tablet"]{width:min(820px,100%)}
.frame[data-device="phone"]{width:min(390px,100%);border-radius:26px;border:9px solid var(--ink)}
.frame iframe{display:block;width:100%;height:100%;border:0}
@media(prefers-reduced-motion:reduce){.frame{transition:none}}

/* pages */
.page-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.page-item{width:100%;display:flex;justify-content:space-between;gap:8px;padding:7px 9px;border:0;border-radius:6px;background:transparent;cursor:pointer;text-align:left}
.page-item:hover{background:var(--panel-2)}
.page-item.active{background:#EAEDFC;color:var(--accent);font-weight:600}
.page-slug{color:var(--ink-3);font-size:12px;font-weight:400}

/* library */
.lib-group{margin:10px 0 6px;font-size:11.5px;color:var(--ink-3);font-weight:600}
.lib-group:first-child{margin-top:0}
.lib-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.lib-item{display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:grab;text-align:left;font-size:12.5px;font-weight:500}
.lib-item:hover{border-color:var(--accent);color:var(--accent)}
.lib-icon{width:22px;height:22px;display:grid;place-items:center;border-radius:5px;background:var(--panel-2);font-size:12px;flex:none;color:var(--ink-2)}

/* layers */
.layers{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.layer{display:grid;grid-template-columns:22px 1fr;column-gap:8px;padding:6px 8px;border-radius:6px;cursor:pointer;position:relative}
.layer:hover{background:var(--panel-2)}
.layer.active{background:#FDE8F0}
.layer-icon{grid-row:span 2;width:22px;height:22px;display:grid;place-items:center;border-radius:5px;background:var(--panel-2);font-size:12px;color:var(--ink-2);align-self:center}
.layer-name{font-weight:600;font-size:12.5px}
.layer-sub{font-size:11.5px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.layer.drop-before{box-shadow:inset 0 2px 0 var(--sel)}.layer.drop-after{box-shadow:inset 0 -2px 0 var(--sel)}
.pad{padding:6px 8px}

/* inspector */
.tabs{display:flex;gap:2px;padding:8px 10px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:2}
.tabs button{flex:1;border:0;background:transparent;padding:7px 0;border-radius:6px;cursor:pointer;font-weight:600;color:var(--ink-2)}
.tabs button[aria-selected="true"]{background:var(--panel-2);color:var(--ink)}
.inspector{padding:16px;overflow:auto;flex:1}
.insp-head{display:flex;gap:12px;margin-bottom:16px}
.insp-head h3{margin:0;font-size:15px}
.insp-head p{margin:2px 0 0;font-size:12.5px}
.insp-icon{width:34px;height:34px;flex:none;display:grid;place-items:center;border-radius:8px;background:#EAEDFC;color:var(--accent);font-weight:700}
.group{padding:14px 0;border-top:1px solid var(--line)}
.group-title{margin:0 0 10px;font-size:12.5px;color:var(--ink-2)}
.fields{display:grid;gap:12px}
.field{display:grid;gap:5px}
.f-label{font-size:12px;font-weight:600;color:var(--ink-2)}
.f-row{display:flex;justify-content:space-between;align-items:center}
.field input[type=text],.field input[type=url],.field input:not([type]),.field textarea,.field select,.picker-url input{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:6px;background:#fff}
.field textarea{resize:vertical;min-height:60px}
.field textarea.code{font-family:ui-monospace,Consolas,monospace;font-size:12px}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(45,75,224,.15)}
.field.check{display:flex;align-items:center;gap:8px;grid-template-columns:none;cursor:pointer;font-weight:500}
.field input[type=range]{width:100%;accent-color:var(--accent)}
output{font-size:12px;color:var(--ink-3)}
.color-row{display:flex;gap:6px}
.color-row input[type=color]{width:38px;height:32px;padding:2px;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer}
.color-row .hex{font-family:ui-monospace,Consolas,monospace;text-transform:uppercase}
.image-field{display:flex;gap:10px;align-items:center}
.thumb{width:76px;height:56px;flex:none;border-radius:6px;background:var(--panel-2);display:grid;place-items:center;overflow:hidden;font-size:11px;color:var(--ink-3)}
.thumb img{width:100%;height:100%;object-fit:cover}
.image-actions{display:flex;flex-wrap:wrap;gap:6px}
.list{display:grid;gap:6px}
.list-item{border:1px solid var(--line);border-radius:7px;background:#fff}
.list-item summary{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:6px 6px 6px 10px;cursor:pointer;list-style:none;font-weight:500}
.list-item summary::-webkit-details-marker{display:none}
.list-item[open] summary{border-bottom:1px solid var(--line)}
.list-item>.fields{padding:10px}
.li-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.li-tools{display:flex;flex:none}
.count{font-size:11.5px;color:var(--ink-3);background:var(--panel-2);border-radius:99px;padding:1px 8px}
.row-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}
.empty-state{text-align:center;padding:40px 12px;color:var(--ink-2)}
.empty-title{font-weight:700;color:var(--ink);font-size:14px;margin-bottom:4px}
.presets{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:6px}
.preset{display:grid;gap:6px;padding:7px;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:pointer;font-size:12px;font-weight:600;text-align:left}
.preset:hover{border-color:var(--accent)}
.swatches{display:flex;height:16px;border-radius:4px;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}
.swatches i{flex:1}
.box{padding:14px 0;border-top:1px solid var(--line)}
.box h4{margin:0 0 10px;font-size:12.5px;color:var(--ink-2)}
.box-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.box-head h4{margin:0}
.kv{display:flex;justify-content:space-between;gap:10px;padding:4px 0;font-size:12.5px}.kv span{color:var(--ink-2)}
.meter{height:5px;border-radius:9px;background:var(--panel-2);overflow:hidden;margin:2px 0 8px}
.meter span{display:block;height:100%;background:var(--accent)}
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:8px}
.media-item{margin:0;border-radius:6px;overflow:hidden;background:var(--panel-2)}
.media-item img{width:100%;aspect-ratio:1;object-fit:cover;display:block}
.media-item figcaption{display:flex;justify-content:space-between;align-items:center;padding:0 2px 0 6px;font-size:11px;color:var(--ink-3)}
.media-item.unused img{opacity:.5}
.inbox{list-style:none;margin:0;padding:0;display:grid;gap:8px;max-height:300px;overflow:auto}
.inbox li{padding:10px;border:1px solid var(--line);border-radius:7px}
.inbox p{margin:6px 0 0;white-space:pre-wrap}
.inbox-top{display:flex;justify-content:space-between;gap:8px}.inbox time{color:var(--ink-3);font-size:11.5px}

/* AI */
.ai-toggle{border:0;background:linear-gradient(135deg,#efeaff,#fde8f0);color:#5b3fd6;font-size:11.5px;font-weight:700;padding:3px 8px;border-radius:99px;cursor:pointer}
.ai-toggle[aria-expanded="true"]{background:#5b3fd6;color:#fff}
.ai-row{display:flex;flex-wrap:wrap;gap:6px}
.ai-box{display:grid;gap:8px;padding:12px;border-radius:9px;background:linear-gradient(135deg,#f5f2ff,#fdf0f5);border:1px solid #e6defc}
.ai-box textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;resize:vertical}
.ai-note{margin:0}

/* modal & toast */
dialog{border:0;border-radius:12px;padding:0;width:min(440px,calc(100vw - 32px));box-shadow:0 24px 70px -20px rgba(27,33,48,.55)}
dialog.wide{width:min(680px,calc(100vw - 32px))}
dialog::backdrop{background:rgba(27,33,48,.45)}
.modal-card{padding:20px;display:grid;gap:14px}
.modal-head{display:flex;justify-content:space-between;align-items:center}
.modal-head h2{margin:0;font-size:16px}
.modal-text{margin:0;color:var(--ink-2)}
.modal-actions{display:flex;justify-content:flex-end;gap:8px}
.tpl-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;max-height:52vh;overflow:auto;padding:2px}
@media(max-width:560px){.tpl-grid{grid-template-columns:1fr}}
.tpl{display:grid;grid-template-columns:auto 28px 1fr;grid-template-rows:auto auto;column-gap:10px;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:8px;cursor:pointer}
.tpl:has(input:checked){border-color:var(--accent);box-shadow:0 0 0 2px rgba(45,75,224,.18)}
.tpl input{grid-row:span 2;accent-color:var(--accent)}
.tpl-swatch{grid-row:span 2;width:28px;height:28px;border-radius:6px}
.tpl .muted{font-size:12px}
.picker{display:grid;gap:14px}
.picker-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));max-height:320px;overflow:auto}
.media-pick{padding:0;border:2px solid transparent;border-radius:7px;overflow:hidden;cursor:pointer;background:var(--panel-2)}
.media-pick:hover,.media-pick:focus-visible{border-color:var(--accent)}
.media-pick img{width:100%;aspect-ratio:1;object-fit:cover;display:block}
.picker-url{display:flex;gap:8px}
.toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,20px);max-width:min(560px,calc(100vw - 32px));padding:10px 16px;border-radius:9px;background:var(--ink);color:#fff;box-shadow:0 10px 30px rgba(27,33,48,.35);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:100}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media(max-width:1100px){.workspace{grid-template-columns:230px 1fr 290px}.devices button{padding:5px 8px}}
@media(max-width:860px){
  body{overflow:auto}
  .topbar{flex-wrap:wrap;height:auto;padding:8px 12px;gap:8px}
  .devices{margin:0}
  .workspace{grid-template-columns:1fr;height:auto}
  .stage{height:75vh;order:-1}
  .left,.right{overflow:visible}
}