:root{
  --bg: #ffffff;
  --fg: #111111;
  --muted: #666666;
  --line: #dddddd;
  --soft: #f6f6f6;
  --btn: #efefef;
  --btn2: #e5e5e5;
}

@media (prefers-color-scheme: dark) {
  :root{
    --bg: #0f1115;
    --fg: #eaeaea;
    --muted: #a0a0a0;
    --line: #2a2f3a;
    --soft: #151922;
    --btn: #1b2130;
    --btn2: #222a3b;
  }
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font: 14px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
}

.brand{display:flex; align-items:center; gap:12px}
.logo{
  width:40px; height:40px; border-radius:12px;
  display:grid; place-items:center;
  background: transparent;
}
.logo img{
  width:40px;
  height:40px;
  object-fit: cover;
  border-radius: 12px;
  display:block;
}
.brand-title{font-weight:800; font-size:14px}
.brand-subtitle{font-size:12px; color:var(--muted)}

.top{
  display:flex;
  gap:12px;
  justify-content:space-between;
  align-items:flex-start;
  padding:12px;
  border-bottom:1px solid var(--line);
}
.title{ font-weight:700; font-size:16px; }
.sub{ color:var(--muted); font-size:12px; margin-top:2px; }
.top-right{ display:flex; gap:8px; align-items:center; flex-wrap:wrap; justify-content:flex-end; }
.inline{ display:flex; gap:6px; align-items:center; color:var(--muted); font-size:12px; }
.sep{ width:1px; height:22px; background:var(--line); display:inline-block; margin:0 4px; }

select,input,button,textarea{
  font: inherit;
  color: inherit;
}
select,input,textarea{
  background: var(--bg);
  border:1px solid var(--line);
  border-radius:8px;
  padding:7px 10px;
}
button{
  background: var(--btn);
  border:1px solid var(--line);
  border-radius:8px;
  padding:7px 10px;
  cursor:pointer;
}
button:hover{ background: var(--btn2); }
button:disabled{ opacity:.55; cursor:not-allowed; }

.mutebtn{ background: transparent; }
.mutebtn:hover{ background: var(--soft); }

.layout{
  display:grid;
  grid-template-columns: 360px 1fr;
  gap:12px;
  padding:12px;
  height: calc(100vh - 62px);
}

.side, .main{
  border:1px solid var(--line);
  border-radius:10px;
  overflow:hidden;
  background: var(--soft);
}

.side{
  padding:12px;
  overflow:auto;
}
.main{
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

.drop{
  border:1px dashed var(--line);
  border-radius:10px;
  padding:12px;
  background: var(--bg);
}
.drop input[type=file]{ display:none; }
.drop-title{ font-weight:700; margin-bottom:6px; }
.drop-text{ color:var(--muted); font-size:12px; margin-top:2px; }

.row{ display:flex; gap:8px; align-items:center; flex-wrap:wrap; margin-top:10px; }
.row-tight{ margin-top:8px; }
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:7px 10px;
  border:1px solid var(--line);
  border-radius:8px;
  background: var(--btn);
  cursor:pointer;
  user-select:none;
}
.btn input{ display:none; }

.tabbtn{ width: calc(50% - 4px); }
.search{ width:100%; margin-top:10px; background: var(--bg); }
.meta{ margin-top:10px; color:var(--muted); font-size:12px; }

.box{
  margin-top:10px;
  padding:10px;
  border:1px solid var(--line);
  border-radius:10px;
  background: var(--bg);
}
.box summary{ cursor:pointer; font-weight:700; }
.grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap:10px;
  margin-top:10px;
}
.grid label{ display:flex; flex-direction:column; gap:6px; }
.grid span{ color:var(--muted); font-size:12px; }
.hint{ color:var(--muted); font-size:12px; margin-top:8px; }
code{ padding:1px 5px; border-radius:6px; background: var(--soft); border:1px solid var(--line); }

.tree{
  margin-top:10px;
  background: var(--bg);
  border:1px solid var(--line);
  border-radius:10px;
  padding:8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
}
.item{
  padding:5px 8px;
  border-radius:8px;
  cursor:pointer;
  display:flex;
  gap:8px;
  align-items:center;
}
.item:hover{ background: var(--soft); }
.item.active{ outline:2px solid rgba(120,120,120,.25); background: var(--soft); }
.indent{ margin-left: 14px; }

.err{
  margin-top:10px;
  white-space:pre-wrap;
  border:1px solid #cc4444;
  background: rgba(204,68,68,.06);
  border-radius:10px;
  padding:10px;
}

.bar{
  padding:12px;
  border-bottom:1px solid var(--line);
  background: var(--bg);
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:10px;
}
.bar-title{ font-weight:700; }
.bar-sub{ color:var(--muted); font-size:12px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

.tabs{
  display:flex;
  gap:6px;
  padding:10px 12px;
  border-bottom:1px solid var(--line);
  background: var(--bg);
  overflow:auto;
}
.tab{
  display:inline-flex;
  gap:8px;
  align-items:center;
  padding:6px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  background: var(--bg);
  cursor:pointer;
  white-space:nowrap;
}
.tab.active{ background: var(--soft); }
.tab .x{ color:var(--muted); padding:0 6px; border-radius:8px; }
.tab .x:hover{ background: var(--soft); }

.preview{
  flex:1;
  overflow:auto;
  padding:12px;
  background: var(--bg);
}
.placeholder{ color:var(--muted); font-size:12px; }

textarea.editor{
  width:100%;
  height:60vh;
  border-radius:10px;
  padding:10px;
  resize:vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12.5px;
}
img.previewImg{ max-width:100%; max-height:60vh; border:1px solid var(--line); border-radius:10px; }

.logs{
  border-top:1px solid var(--line);
  background: var(--bg);
  padding:12px;
}
.logs-title{ font-weight:700; margin-bottom:6px; }
pre{ margin:0; white-space:pre-wrap; }

.diffBox{
  padding:12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  line-height: 1.4;
  white-space: pre;
  overflow:auto;
  max-height:60vh;
  border:1px solid var(--line);
  border-radius:10px;
  background: var(--bg);
}
.diffLine{ display:block; padding:0 8px; border-radius:8px; }
.diffLine.add{ background: rgba(0,180,90,.10); }
.diffLine.del{ background: rgba(200,60,60,.10); }

@media (max-width: 980px){
  .layout{ grid-template-columns:1fr; height:auto; }
  .tabbtn{ width:auto; flex:1; }
  .grid{ grid-template-columns:1fr; }
}