:root{
  --bg:#f4f5f7;
  --surface:#ffffff;
  --surface2:#f1f2f4;
  --text:#172b4d;
  --muted:#6b778c;
  --border:#dfe1e6;
  --blue:#0747a6;
  --blue2:#0052cc;
  --danger:#de350b;
  --warn:#ffab00;
  --ok:#36b37e;
  --shadow: 0 1px 2px rgba(9,30,66,.15);
  --radius: 10px;
  --maxw: 1600px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text);}

.topbar{
  height:56px;
  background:var(--blue);
  color:#fff;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 14px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brandmark{width:28px;height:28px;border-radius:8px;background:rgba(255,255,255,.18);display:grid;place-items:center}
.topbar .spacer{flex:1}
.topbar select,.topbar input{
  height:36px;border-radius:8px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.10);color:#fff;padding:0 10px;
}
.topbar input::placeholder{color:rgba(255,255,255,.75)}
.topbar button{
  height:36px;border-radius:8px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.14);color:#fff;padding:0 10px;cursor:pointer;
}
.topbar button.primary{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.35);}
.topbar button:hover{filter:brightness(1.08)}

.layout{display:flex;height:calc(100vh - 56px);}

.sidebar{
  width:320px;
  background:var(--surface);
  border-right:1px solid var(--border);
  overflow:auto;
  padding:12px;
}
.sidehead{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.sidehead .title{font-weight:700}
.sidehead .meta{color:var(--muted);font-size:12px}
.sidehead .right{margin-left:auto;display:flex;gap:8px}
.iconbtn{
  height:32px;width:32px;border-radius:8px;border:1px solid var(--border);
  background:var(--surface);cursor:pointer;
}
.iconbtn:hover{background:var(--surface2)}
.side-tools{display:flex;gap:8px;margin:10px 0}
.side-tools input, .side-tools select{
  height:34px;border-radius:8px;border:1px solid var(--border);padding:0 10px;width:100%;
  background:#fff;color:var(--text);
}
.tree{margin-top:6px}
.node{user-select:none}
.nodeRow{
  display:flex;align-items:center;gap:8px;
  padding:6px 8px;border-radius:8px;cursor:pointer;
}
.nodeRow:hover{background:var(--surface2)}
.nodeRow.active{background:rgba(0,82,204,.10); outline:1px solid rgba(0,82,204,.18)}
.nodeRow .twisty{width:18px;height:18px;display:grid;place-items:center;color:var(--muted)}
.nodeRow .name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nodeRow .pill{font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:2px 7px}
.nodeRow .dots{width:22px;height:22px;border-radius:7px;display:grid;place-items:center;color:var(--muted);}
.nodeRow .dots:hover{background:#fff;border:1px solid var(--border);}

.children{margin-left:18px;border-left:1px dashed var(--border);padding-left:10px}

.content{flex:1;overflow:auto;padding:18px}
.contentInner{max-width:var(--maxw);margin:0 auto}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.pageHead{
  padding:14px 16px;
  border-bottom:1px solid var(--border);
  display:flex;gap:12px;align-items:flex-start;
}
.pageHead .left{flex:1;min-width:0}
.breadcrumbs{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{text-decoration:underline}
.pageTitle{margin:6px 0 0 0;font-size:24px}
.pageMeta{margin-top:6px;color:var(--muted);font-size:12px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.actions button, .actions select{
  height:34px;border-radius:8px;border:1px solid var(--border);
  background:#fff;color:var(--text);padding:0 10px;cursor:pointer;
}
.actions button.primary{background:var(--blue2);border-color:var(--blue2);color:#fff}
.actions button.danger{background:#fff;border-color:rgba(222,53,11,.35);color:var(--danger)}
.actions button:hover{background:var(--surface2)}
.actions button.primary:hover{filter:brightness(1.05);background:var(--blue2)}
.actions button.danger:hover{background:rgba(222,53,11,.06)}

.toolbar{
  display:none;
  padding:10px 12px;
  border-bottom:1px solid var(--border);
  gap:8px;flex-wrap:wrap;
}
.toolbar.show{display:flex}
.toolbar .group{display:flex;gap:6px;align-items:center;padding-right:8px;border-right:1px solid var(--border)}
.toolbar .group:last-child{border-right:none}
.toolbtn{
  height:32px;min-width:32px;border-radius:8px;border:1px solid var(--border);
  background:#fff;cursor:pointer;padding:0 10px;
}
.toolbtn:hover{background:var(--surface2)}
.toolselect{
  height:32px;border-radius:8px;border:1px solid var(--border);
  padding:0 8px;background:#fff;
}
.toolcolor{height:32px;width:40px;border:1px solid var(--border);border-radius:8px;padding:0;background:#fff}
.canvas{
  padding:18px 18px 28px 18px;
  min-height:70vh;
  outline:none;
}
.canvas[contenteditable="true"]{
  box-shadow: inset 0 0 0 2px rgba(0,82,204,.25);
  border-radius: 0 0 var(--radius) var(--radius);
}
.canvas h1{margin-top:0}
.canvas a{color:var(--blue2);text-decoration:underline;text-underline-offset:3px}
.notice{
  background:rgba(0,82,204,.06);
  border:1px solid rgba(0,82,204,.18);
  padding:12px;border-radius:10px;color:#0b2f6a;
}

.pillClass{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:999px;padding:4px 10px;font-size:12px;border:1px solid transparent;
}
.pillClass .dot{width:8px;height:8px;border-radius:999px;background:var(--muted)}
.pillClass.unclassified{background:rgba(0,82,204,.10);border-color:rgba(0,82,204,.18);color:#0b2f6a}
.pillClass.unclassified .dot{background:var(--blue2)}
.pillClass.dubious{background:rgba(222,53,11,.08);border-color:rgba(222,53,11,.18);color:#7a1c12}
.pillClass.dubious .dot{background:var(--danger)}
.pillClass.moderately{background:rgba(255,171,0,.14);border-color:rgba(255,171,0,.30);color:#7a3d00}
.pillClass.moderately .dot{background:var(--warn)}

.kv{display:flex;gap:8px;align-items:center}
.kv .k{color:var(--muted)}
.kv .v{font-weight:600}

.modalBack{
  position:fixed;inset:0;background:rgba(9,30,66,.54);
  display:none;align-items:center;justify-content:center;padding:18px;
}
.modalBack.show{display:flex}
.modal{
  width:min(720px, 100%);
  background:#fff;border-radius:14px;border:1px solid var(--border);
  box-shadow: 0 16px 48px rgba(9,30,66,.45);
  overflow:hidden;
}
.modalHead{padding:14px 16px;border-bottom:1px solid var(--border);font-weight:700}
.modalBody{padding:14px 16px}
.modalRow{display:flex;gap:12px;flex-wrap:wrap}
.field{flex:1;min-width:220px}
.field label{display:block;color:var(--muted);font-size:12px;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;height:36px;border-radius:10px;border:1px solid var(--border);
  padding:0 10px;background:#fff;color:var(--text);
}
.field textarea{height:110px;padding:10px;resize:vertical}
.modalActions{padding:12px 16px;border-top:1px solid var(--border);display:flex;gap:8px;justify-content:flex-end}
.modalActions button{
  height:36px;border-radius:10px;border:1px solid var(--border);background:#fff;cursor:pointer;padding:0 12px;
}
.modalActions button.primary{background:var(--blue2);border-color:var(--blue2);color:#fff}
.modalActions button.danger{border-color:rgba(222,53,11,.35);color:var(--danger)}
.modalActions button:hover{background:var(--surface2)}
.modalActions button.primary:hover{filter:brightness(1.05);background:var(--blue2)}
.modalActions button.danger:hover{background:rgba(222,53,11,.06)}

.grid{
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap:12px;
}
.tile{
  border:1px solid var(--border);border-radius:14px;background:#fff;padding:14px;box-shadow:var(--shadow);
}
.tile h3{margin:0 0 8px 0}
.tile .small{color:var(--muted);font-size:12px}
.small{color:var(--muted);font-size:12px}

.hr{height:1px;background:var(--border);margin:12px 0}

.commentBox{margin-top:12px;border-top:1px solid var(--border);padding-top:12px}
.commentItem{border:1px solid var(--border);border-radius:12px;padding:10px;margin:8px 0;background:#fff}
.commentItem .meta{color:var(--muted);font-size:12px;margin-top:6px}

.diffWrap{padding:12px 16px}
.diffCol{border:1px solid var(--border);border-radius:12px;padding:10px;background:#fff}
.diffGrid{display:grid;grid-template-columns: 1fr 1fr; gap:12px}
.diffTitle{font-weight:700;margin-bottom:8px}
.diffMarkAdd{background:rgba(54,179,126,.18)}
.diffMarkDel{background:rgba(222,53,11,.14);text-decoration:line-through}
pre{white-space:pre-wrap;word-break:break-word}