:root{--bg:#111318;--panel:#171a21;--line:#262a34;--text:#e8eaf0;--mut:#8b91a1;--acc:#6ea8ff;--ok:#5ad19a;--warn:#f0b35a;--bad:#ff7a7a;color-scheme:dark}
@media(prefers-color-scheme:light){:root{--bg:#f3f4f7;--panel:#fff;--line:#dfe2ea;--text:#1a1d24;--mut:#667085;--acc:#2f6fed;--ok:#14935f;--warn:#b7791f;--bad:#d64545;color-scheme:light}}
*{box-sizing:border-box}html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--text);font:14px/1.45 system-ui,Segoe UI,sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
button{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:6px 12px;cursor:pointer}
button:hover{border-color:var(--acc)}button.primary{background:var(--acc);border-color:var(--acc);color:#fff}
input,select,textarea{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;width:100%}
input:focus,textarea:focus,select:focus{outline:2px solid color-mix(in srgb,var(--acc) 50%,transparent);border-color:var(--acc)}
.muted{color:var(--mut)}.small{font-size:12px}.err{color:var(--bad);min-height:1.2em}
#app{display:grid;grid-template-columns:1fr 380px;height:100%}
#browser{display:flex;flex-direction:column;min-width:0;border-right:1px solid var(--line)}
#tabbar{display:flex;gap:4px;padding:6px 8px 0;background:var(--panel);align-items:flex-end}
#tabs{display:flex;gap:4px;overflow-x:auto;min-width:0}
.tab{display:flex;align-items:center;gap:6px;max-width:190px;padding:6px 8px 6px 12px;border-radius:8px 8px 0 0;background:var(--bg);color:var(--mut);cursor:pointer;white-space:nowrap}
.tab.on{color:var(--text);box-shadow:inset 0 2px var(--acc)}
.tab span{overflow:hidden;text-overflow:ellipsis}.tab b{font-weight:400;opacity:.6;padding:0 2px}.tab b:hover{opacity:1}
#newTab{border:0;background:none;font-size:18px;padding:2px 10px}
#toolbar{display:flex;gap:6px;padding:8px;background:var(--panel);border-bottom:1px solid var(--line)}
#toolbar button{padding:6px 10px}
#viewWrap{position:relative;flex:1;min-height:0;background:#000;display:flex;align-items:center;justify-content:center}
#viewWrap{overflow:hidden}
#view{position:absolute;left:0;top:0;width:100%;height:100%;display:none;outline:none;user-select:none;touch-action:none;background:#fff}
#view.live{display:block}
#kbIn{position:absolute;left:0;bottom:0;width:1px;height:1px;opacity:0;border:0;padding:0;pointer-events:none}
#kbd{display:none}@media(pointer:coarse){#kbd{display:inline-block}}
code{background:var(--bg);padding:1px 5px;border-radius:5px}
#empty{color:var(--mut);padding:20px;text-align:center}
#banner{position:absolute;left:50%;top:10px;transform:translateX(-50%);display:flex;gap:10px;align-items:center;background:color-mix(in srgb,var(--panel) 92%,transparent);border:1px solid var(--acc);border-radius:999px;padding:6px 8px 6px 14px;backdrop-filter:blur(6px);font-size:13px;max-width:92%}
.dot{width:9px;height:9px;border-radius:50%;background:var(--acc);animation:p 1.1s ease-in-out infinite}@keyframes p{50%{opacity:.25}}
#banner button{padding:3px 12px;border-radius:999px}
#panel{display:flex;flex-direction:column;min-height:0;background:var(--panel)}
#panel header{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line)}
#panel header .muted{flex:1;font-size:12px}
#log{flex:1;overflow-y:auto;padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.msg{padding:8px 10px;border-radius:10px;background:var(--bg);white-space:pre-wrap;word-break:break-word}
.msg.user{background:color-mix(in srgb,var(--acc) 18%,var(--bg));align-self:flex-end;max-width:90%}
.msg.step{font-size:12.5px;color:var(--mut);background:none;padding:2px 4px;border-left:2px solid var(--line);border-radius:0}
.msg.step em{display:block;font-style:normal;opacity:.8}
.msg.done{border:1px solid var(--ok)}.msg.warn,.msg.ask{border:1px solid var(--warn)}.msg.error{border:1px solid var(--bad)}
.msg.info{color:var(--mut)}
#askBox{margin:0 14px 8px;padding:10px;border:1px solid var(--warn);border-radius:10px;background:var(--bg)}
#askBtns{margin-top:8px;gap:8px}
#composer{padding:10px 14px 14px;border-top:1px solid var(--line)}
textarea{resize:none}
.row{display:flex;gap:8px;align-items:center;margin-top:8px}.row .muted{flex:1}.row.end{justify-content:flex-end}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;z-index:10;padding:16px}
.modal[hidden],[hidden]{display:none!important}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;width:min(420px,100%);display:flex;flex-direction:column;gap:12px}
.card h2{margin:0}.card label{display:flex;flex-direction:column;gap:4px;color:var(--mut);font-size:13px}
.card label.check{flex-direction:row;align-items:center;gap:8px;color:var(--text)}.card label.check input{width:auto}
#sheet{display:none}
@media(max-width:820px){
  #app{grid-template-columns:1fr;grid-template-rows:1fr auto;height:100dvh}
  #browser{border-right:0;border-bottom:1px solid var(--line);min-height:0}
  #panel{max-height:42dvh}
  #panel.min{max-height:none}#panel.min #log,#panel.min #askBox:not([hidden]){display:none}
  #sheet{display:inline-block}
  #tabbar{padding-top:4px}.tab{max-width:130px}
  #toolbar button{padding:6px 8px}
}
@media(prefers-reduced-motion:reduce){.dot{animation:none}}