/* ============ Webroom — Agent 图片编辑台 ============
   Style: moddark (modern dark) — deep dark surface, blue accent,
   glass panels, 14px radius, restrained gradient. */
:root{
  --bg:#121216;
  --panel:#17171C;
  --panel2:#1E1E25;
  --line:#26262E;
  --line2:#34343F;
  --text:#E8E8EF;
  --muted:#A6A6B4;
  --faint:#6E6E7C;
  --accent:#4F7CFF;
  --accent-hi:#8FB0FF;
  --accent-soft:rgba(79,124,255,.14);
  --teal:#3ECF8E;
  --danger:#FF6B6B;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --disp:"Space Grotesk","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --r:14px;
  --glass:rgba(23,23,28,.72);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--bg);color:var(--text);
  background-image:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(79,124,255,.08),transparent 60%);
  font-family:var(--disp);font-size:13px;line-height:1.5;
  display:grid;grid-template-rows:52px 1fr 28px;
  overflow:hidden;
}
button{font-family:inherit;font-size:12px;color:var(--text);background:var(--panel2);
  border:1px solid var(--line);border-radius:8px;padding:5px 10px;cursor:pointer;
  transition:background .15s,border-color .15s,color .15s,box-shadow .15s}
button:hover{background:#26262E;border-color:var(--line2)}
button:active{transform:translateY(1px)}
button.primary{background:var(--accent);border-color:var(--accent);color:#0B0C12;font-weight:600;
  box-shadow:0 2px 12px rgba(79,124,255,.28)}
button.primary:hover{background:#3A62D9;border-color:#3A62D9;box-shadow:0 4px 18px rgba(79,124,255,.4)}
button.ghost{background:transparent}
button.ghost.danger{color:var(--danger)}
button.ghost.danger:hover{border-color:var(--danger);color:var(--danger)}
button:disabled{opacity:.35;cursor:default;transform:none}
input[type=text]{font-family:inherit;font-size:12px;color:var(--text);background:var(--bg);
  border:1px solid var(--line);border-radius:8px;padding:6px 9px;outline:none;width:100%;
  transition:border-color .15s,box-shadow .15s}
input[type=text]:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,124,255,.18)}
.mini-btn{font-size:10px;padding:1px 7px;border-radius:6px;color:var(--muted)}
.mini-btn:hover{color:var(--text)}
code{font-family:var(--mono);font-size:11px;color:var(--accent-hi)}
::selection{background:rgba(79,124,255,.32);color:#fff}

/* ---------- topbar ---------- */
#topbar{display:flex;align-items:center;gap:18px;padding:0 14px;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);z-index:10}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
#brand-mark{width:26px;height:26px;border-radius:6px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-weight:700;letter-spacing:.14em;font-size:14px}
.brand-sub{font-size:10px;color:var(--faint);font-family:var(--mono)}
#project-name{flex:1;max-width:340px;text-align:center;color:var(--muted);
  font-family:var(--mono);font-size:12px;padding:4px 10px;border-radius:8px;
  border:1px dashed transparent;outline:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:border-color .15s,color .15s}
#project-name:hover{border-color:var(--line)}
#project-name:focus{border-color:var(--accent);color:var(--text)}
.top-actions{display:flex;gap:8px;align-items:center}

/* ---------- layout ---------- */
#layout{display:grid;grid-template-columns:248px 1fr 324px;min-height:0}
.panel{background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  display:flex;flex-direction:column;min-height:0;overflow:hidden}
#left{border-right:1px solid var(--line)}
#right{border-left:1px solid var(--line)}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;
  padding:12px 14px 8px;font-size:11px;font-weight:600;letter-spacing:.12em;color:var(--muted)}
.panel-head .hint{font-family:var(--mono);font-size:9px;color:var(--faint);letter-spacing:.08em}

/* ---------- library ---------- */
#library-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:0 14px 12px}
.lib-item{position:relative;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;cursor:pointer;background:var(--panel2);transition:border-color .15s,transform .15s,box-shadow .15s}
.lib-item:hover{border-color:var(--line2);transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.35)}
.lib-item.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 0 16px rgba(79,124,255,.18)}
.lib-item canvas{display:block;width:100%;height:auto}
.lib-item .lib-meta{padding:5px 7px;display:flex;justify-content:space-between;align-items:baseline}
.lib-item .lib-name{font-size:11px;font-weight:600}
.lib-item .lib-dims{font-family:var(--mono);font-size:9px;color:var(--faint)}
.lib-item .lib-seed{position:absolute;top:5px;right:5px;font-family:var(--mono);font-size:9px;
  background:rgba(10,10,14,.72);color:var(--accent-hi);padding:1px 5px;border-radius:4px}

/* ---------- history ---------- */
#history-list{flex:1;overflow-y:auto;padding:0 8px 12px;min-height:0}
.hist-item{display:flex;gap:8px;align-items:baseline;padding:5px 8px;border-radius:8px;
  cursor:pointer;color:var(--muted);font-size:11px;border:1px solid transparent;transition:background .15s,border-color .15s}
.hist-item:hover{background:var(--panel2)}
.hist-item.active{background:var(--accent-soft);color:var(--text);border-color:rgba(79,124,255,.35)}
.hist-item .h-idx{font-family:var(--mono);font-size:9px;color:var(--faint);flex:none;width:20px;text-align:right}
.hist-item .h-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hist-item .h-time{font-family:var(--mono);font-size:9px;color:var(--faint);flex:none}

/* ---------- stage ---------- */
#stage-area{display:flex;flex-direction:column;min-width:0;min-height:0;background:
  radial-gradient(1200px 700px at 50% 30%,#17171D 0%,var(--bg) 70%)}
#stage-toolbar{display:flex;justify-content:space-between;align-items:center;
  padding:8px 14px;border-bottom:1px solid var(--line)}
#stage-title{font-family:var(--mono);font-size:11px;color:var(--muted)}
.stage-actions{display:flex;gap:6px;align-items:center}
.stage-actions button{width:30px;padding:5px 0;text-align:center}
.stage-actions #btn-preview{width:auto;padding:5px 12px}
.vdiv{width:1px;height:18px;background:var(--line);margin:0 4px}
#stage-wrap{flex:1;position:relative;display:flex;align-items:center;justify-content:center;
  min-height:0;overflow:hidden;padding:24px}
#canvas-holder{position:relative;box-shadow:0 18px 60px rgba(0,0,0,.55),0 0 0 1px var(--line);
  border-radius:4px}
#stage{display:block;width:100%;height:100%}
#btn-back-edit{position:absolute;top:14px;left:14px;display:none;z-index:5}
#stage-wrap.previewing #btn-back-edit{display:block}
#stage-wrap.previewing #marquee,#stage-wrap.previewing #preview-card{display:none}

/* crop marquee */
#marquee{position:absolute;border:1.5px dashed var(--accent);border-radius:1px;
  box-shadow:0 0 0 9999px rgba(10,10,14,.42);cursor:move;z-index:3}
.m-grid{position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.28) 1px,transparent 1px),
    linear-gradient(to right,rgba(255,255,255,.28) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.28) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.28) 1px,transparent 1px);
  background-size:33.4% 100%,33.4% 100%,100% 33.4%,100% 33.4%;
  background-position:33.3% 0,66.6% 0,0 33.3%,0 66.6%;
  background-repeat:no-repeat}
.m-handle{position:absolute;width:13px;height:13px;background:var(--accent);
  border:2px solid #0E0F14;border-radius:3px;transform:translate(-50%,-50%);z-index:4;
  box-shadow:0 0 8px rgba(79,124,255,.55)}
.m-handle[data-h=nw]{left:0;top:0;cursor:nwse-resize}
.m-handle[data-h=ne]{left:100%;top:0;cursor:nesw-resize}
.m-handle[data-h=sw]{left:0;top:100%;cursor:nesw-resize}
.m-handle[data-h=se]{left:100%;top:100%;cursor:nwse-resize}

/* preview card */
#preview-card{position:absolute;right:14px;bottom:14px;width:208px;z-index:4;
  background:var(--panel);border:1px solid var(--line2);border-radius:var(--r);
  overflow:hidden;cursor:pointer;box-shadow:0 10px 30px rgba(0,0,0,.5);
  transition:transform .15s}
#preview-card:hover{transform:translateY(-2px)}
.preview-label{font-family:var(--mono);font-size:9px;letter-spacing:.12em;color:var(--muted);
  padding:5px 8px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}
#preview{display:block;width:100%;height:auto}

/* ---------- right panel tabs ---------- */
#tabs{display:flex;border-bottom:1px solid var(--line);flex:none}
#tabs button{flex:1;border:none;border-radius:0;background:transparent;color:var(--muted);
  padding:10px 0;font-size:12px;border-bottom:2px solid transparent}
#tabs button:hover{color:var(--text);background:transparent}
#tabs button.active{color:var(--accent-hi);border-bottom-color:var(--accent);font-weight:600}
.tab-page{display:none;flex:1;overflow-y:auto;min-height:0;padding:4px 14px 16px}
.tab-page.active{display:block}
.section-label{display:flex;justify-content:space-between;align-items:center;
  font-size:10px;font-weight:600;letter-spacing:.14em;color:var(--faint);
  margin:14px 0 8px;text-transform:uppercase}
.hint-text{font-size:11px;color:var(--muted);line-height:1.6}
.readout{font-family:var(--mono);font-size:10px;color:var(--accent-hi);
  background:var(--panel2);border:1px solid var(--line);border-radius:8px;
  padding:7px 9px;margin-top:8px}

/* filter chips */
#filter-chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{padding:4px 11px;border-radius:999px;font-size:11px;transition:background .15s,border-color .15s,color .15s}
.chip:hover{border-color:var(--line2);color:var(--text)}
.chip.active{background:var(--accent);border-color:var(--accent);color:#0B0C12;font-weight:600}

/* sliders */
.slider-row{display:grid;grid-template-columns:56px 1fr 44px;gap:10px;align-items:center;
  padding:4px 0}
.slider-row label{font-size:11px;color:var(--muted)}
.slider-row .val{font-family:var(--mono);font-size:10px;color:var(--accent-hi);text-align:right}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:22px;background:transparent;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:3px;background:var(--line2);border-radius:2px}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;
  border-radius:50%;background:var(--accent);margin-top:-5.5px;border:2px solid #0E0F14;
  box-shadow:0 0 8px rgba(79,124,255,.5);transition:transform .1s,box-shadow .1s}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.18);box-shadow:0 0 12px rgba(79,124,255,.7)}
input[type=range]::-moz-range-track{height:3px;background:var(--line2);border-radius:2px}
input[type=range]::-moz-range-thumb{width:12px;height:12px;border-radius:50%;
  background:var(--accent);border:2px solid #0E0F14;box-shadow:0 0 8px rgba(79,124,255,.5)}

/* caption controls */
.caption-row{display:flex;gap:8px;margin-bottom:8px;align-items:center}
.caption-row input[type=color]{width:34px;height:30px;padding:0;border:1px solid var(--line);
  border-radius:8px;background:var(--panel2);cursor:pointer}
.caption-row.seg{display:flex}
.caption-row.seg button{flex:1}
.caption-row.seg button.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-hi)}

/* aspect grid */
#aspect-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}
.aspect-btn{padding:9px 4px;text-align:center;font-family:var(--mono);font-size:11px;
  transition:background .15s,border-color .15s,color .15s}
.aspect-btn:hover{border-color:var(--line2);color:var(--text)}
.aspect-btn.active{background:var(--accent);border-color:var(--accent);color:#0B0C12;font-weight:600}
.aspect-btn small{display:block;font-size:9px;color:var(--faint);font-family:var(--disp);font-weight:400}
.aspect-btn.active small{color:#0B0C12}

/* ---------- agent chat ---------- */
#chat-log{display:flex;flex-direction:column;gap:10px;padding:10px 0 4px;min-height:120px}
.msg{max-width:92%;padding:7px 10px;border-radius:10px;font-size:12px;line-height:1.55;
  word-break:break-word;animation:msgIn .18s ease-out}
@keyframes msgIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.msg.user{align-self:flex-end;background:var(--accent-soft);border:1px solid rgba(79,124,255,.32);
  border-bottom-right-radius:4px}
.msg.agent{align-self:flex-start;background:var(--panel2);border:1px solid var(--line);
  border-bottom-left-radius:4px}
.msg .m-text{white-space:pre-wrap}
.tool-call{margin-top:6px;border:1px solid var(--line);border-radius:10px;overflow:hidden;
  background:var(--bg)}
.tool-call .tc-head{display:flex;justify-content:space-between;align-items:center;
  padding:4px 8px;border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:10px;color:var(--accent-hi)}
.tool-call .tc-status{color:var(--faint)}
.tool-call .tc-status.ok{color:var(--teal)}
.tool-call .tc-status.err{color:var(--danger)}
.tool-call pre{padding:6px 8px;font-family:var(--mono);font-size:10px;color:var(--muted);
  overflow-x:auto;white-space:pre-wrap;word-break:break-all}
.tool-call .tc-sum{padding:4px 8px;font-size:11px;color:var(--text);border-top:1px solid var(--line)}
.typing{display:inline-flex;gap:4px;padding:4px 2px}
.typing i{width:5px;height:5px;border-radius:50%;background:var(--faint);animation:tp 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}
.typing i:nth-child(3){animation-delay:.3s}
@keyframes tp{0%,60%,100%{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}
#example-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
#agent-form{display:flex;gap:8px;position:sticky;bottom:0;padding-top:8px;
  background:linear-gradient(transparent,var(--panel) 30%)}
#agent-send{flex:none}

/* ---------- tools registry ---------- */
.tool-row{border:1px solid var(--line);border-radius:var(--r);margin-bottom:10px;
  background:var(--panel2);overflow:hidden}
.tool-head{display:flex;justify-content:space-between;align-items:center;padding:7px 10px;
  border-bottom:1px solid var(--line)}
.tool-name{font-family:var(--mono);font-size:11px;color:var(--accent-hi);font-weight:600}
.tool-desc{padding:7px 10px;font-size:11px;color:var(--muted)}
.tool-schema{padding:8px 10px;font-family:var(--mono);font-size:10px;color:var(--faint);
  border-top:1px solid var(--line);overflow-x:auto;background:var(--bg)}
.api-hint{margin-top:6px;border:1px dashed var(--line2);border-radius:var(--r);
  padding:10px;font-family:var(--mono);font-size:10px;color:var(--muted);line-height:1.7}

/* ---------- statusbar ---------- */
#statusbar{display:flex;align-items:center;gap:18px;padding:0 14px;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  font-family:var(--mono);font-size:10px;color:var(--faint)}
#statusbar .right{margin-left:auto}

/* ---------- toast ---------- */
#toast{position:fixed;left:50%;bottom:44px;transform:translate(-50%,12px);
  background:var(--panel2);border:1px solid var(--accent);color:var(--text);
  padding:8px 16px;border-radius:999px;font-size:12px;opacity:0;pointer-events:none;
  transition:opacity .2s,transform .2s;z-index:99;
  box-shadow:0 8px 30px rgba(0,0,0,.5),0 0 18px rgba(79,124,255,.18)}
#toast.show{opacity:1;transform:translate(-50%,0)}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:var(--line2);border-radius:6px;border:2px solid var(--panel)}
::-webkit-scrollbar-thumb:hover{background:#45454F}
::-webkit-scrollbar-track{background:transparent}
:focus-visible{outline:2px solid var(--accent);outline-offset:1px}

/* ---------- responsive ---------- */
@media (max-width:1180px){#layout{grid-template-columns:212px 1fr 288px}}
@media (max-width:960px){
  body{grid-template-rows:52px 1fr 28px;overflow:auto}
  #layout{grid-template-columns:1fr;grid-template-rows:auto 72vh auto}
  #left{flex-direction:row;flex-wrap:wrap;border-right:none;border-bottom:1px solid var(--line)}
  #library-grid{grid-template-columns:repeat(3,1fr);flex:1}
  #history-list{max-height:180px;flex:1}
  #right{border-left:none;border-top:1px solid var(--line);min-height:420px}
  #project-name{display:none}
}