:root{
  --bg:#EDF0F4;
  --surface:#FFFFFF;
  --surface-2:#F6F8FA;
  --line:#D2DAE3;
  --line-strong:#B4C0CD;
  --ink:#131C25;
  --ink-2:#57687A;
  --ink-3:#8695A5;
  --accent:#D2410B;
  --accent-ink:#FFFFFF;
  --accent-soft:#FAE7DE;
  --console-bg:#131C25;
  --console-ink:#C6D4E1;
  --console-dim:#6E8298;
  --ok:#1B7A57;
  --lane-0:#2C63D6;
  --lane-1:#D2410B;
  --lane-2:#6E44C0;
  --lane-3:#0C7F66;
  --lane-4:#B01A55;
  --lane-5:#8A6410;
  --tag:#8A6410;
  --remote:#57687A;
  --shadow:0 1px 2px rgba(19,28,37,.06), 0 8px 24px rgba(19,28,37,.10);
  --radius:10px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0E141A;
    --surface:#151D25;
    --surface-2:#1B2530;
    --line:#293643;
    --line-strong:#3B4C5C;
    --ink:#E5EDF5;
    --ink-2:#94A5B6;
    --ink-3:#718395;
    --accent:#FF6B35;
    --accent-ink:#1A0E07;
    --accent-soft:#33200F;
    --console-bg:#080D12;
    --console-ink:#B9CADA;
    --console-dim:#5F7387;
    --ok:#3BC08C;
    --lane-0:#5B93F5;
    --lane-1:#FF7A45;
    --lane-2:#A585EC;
    --lane-3:#2FBE9B;
    --lane-4:#F0629B;
    --lane-5:#D0A03C;
    --tag:#D0A03C;
    --remote:#94A5B6;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.45);
  }
}
:root[data-theme="dark"]{
  --tag:#D0A03C;
  --remote:#94A5B6;
  --bg:#0E141A;
  --surface:#151D25;
  --surface-2:#1B2530;
  --line:#293643;
  --line-strong:#3B4C5C;
  --ink:#E5EDF5;
  --ink-2:#94A5B6;
  --ink-3:#718395;
  --accent:#FF6B35;
  --accent-ink:#1A0E07;
  --accent-soft:#33200F;
  --console-bg:#080D12;
  --console-ink:#B9CADA;
  --console-dim:#5F7387;
  --ok:#3BC08C;
  --lane-0:#5B93F5;
  --lane-1:#FF7A45;
  --lane-2:#A585EC;
  --lane-3:#2FBE9B;
  --lane-4:#F0629B;
  --lane-5:#D0A03C;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.45);
}

*{box-sizing:border-box}
/* .conflict/.quest 가 display 를 지정하므로 브라우저 기본 [hidden] 규칙을 덮어쓴다 */
[hidden]{display:none!important}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI","Malgun Gothic",sans-serif;
  font-size:14px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* ---------- shell ---------- */
.shell{max-width:1400px;margin:0 auto;padding:20px 22px 28px;display:flex;flex-direction:column;gap:16px;min-height:100vh}

header.top{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.brand h1{
  margin:0;
  font-size:23px;
  font-weight:600;
  letter-spacing:-.02em;
  text-wrap:balance;
}
.brand h1 em{font-style:normal;color:var(--accent)}
.brand p{margin:3px 0 0;color:var(--ink-2);font-size:13.5px;max-width:60ch}

.toolbar{display:flex;gap:7px;flex-wrap:wrap}
.btn{
  border:1px solid var(--line-strong);
  background:var(--surface);
  padding:7px 12px;
  border-radius:7px;
  cursor:pointer;
  font-weight:500;
  font-size:13px;
  display:inline-flex;align-items:center;gap:6px;
  transition:background .12s,border-color .12s,transform .08s;
}
.btn:hover{background:var(--surface-2);border-color:var(--ink-3)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07);background:var(--accent)}
.btn .k{font-family:"IBM Plex Mono",monospace;font-size:12px;opacity:.65}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------- layout ---------- */
.work{display:grid;grid-template-columns:minmax(0,1fr) 372px;gap:16px;align-items:start;flex:1}
@media (max-width:1000px){ .work{grid-template-columns:minmax(0,1fr)} }

.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;
  border-bottom:1px solid var(--line);
}
.panel-title{
  font-size:11px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);
}

/* ---------- canvas ---------- */
.stage{position:relative;overflow:auto;background:var(--surface-2);border-radius:0 0 var(--radius) var(--radius)}
.stage.preview{background:var(--accent-soft)}
#graph{display:block;touch-action:none;user-select:none}
#graph text{user-select:none}

.headline-state{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-2)}
.headline-state code{
  font-family:"IBM Plex Mono",monospace;
  background:var(--surface-2);border:1px solid var(--line);
  padding:1px 6px;border-radius:5px;color:var(--ink);font-size:12px;
}
.preview-pill{
  display:none;align-items:center;gap:6px;
  font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  color:var(--accent);
}
.stage-wrap.is-preview .preview-pill{display:inline-flex}
.stage-wrap.is-preview .headline-state{opacity:.35}

.conflict{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:10px 14px;
  background:var(--accent-soft);
  border-bottom:1px solid var(--accent);
  border-left:3px solid var(--accent);
}
.c-msg{font-size:12.5px;line-height:1.5;color:var(--ink);flex:1;min-width:220px}
.c-btns{display:flex;gap:7px;flex-wrap:wrap}
.c-btns .btn{font-family:"IBM Plex Mono",monospace;font-size:11.5px;padding:6px 10px}
.stage-wrap.is-conflict #graph{opacity:.65}

.node{cursor:grab}
.node.orphan{opacity:.55}
.node.orphan:hover{opacity:1}
.sync{
  font-size:11.5px;color:var(--ink-3);
  border-left:1px solid var(--line);padding-left:10px;margin-left:2px;
}
.sync.warn{color:var(--accent);font-weight:500}
.stage-wrap.is-preview .sync{opacity:.35}
.node:active{cursor:grabbing}
.node circle.body{transition:r .12s}
.node.drop-ok circle.body{stroke-width:3}
.chip{cursor:grab}
.chip.static{cursor:default}
.chip-tracking{cursor:context-menu}
.chip-tag{cursor:grab}

/* ---------- side ---------- */
.side{display:flex;flex-direction:column;gap:16px;position:sticky;top:20px}

.console{
  background:var(--console-bg);
  border-radius:0 0 var(--radius) var(--radius);
  font-family:"IBM Plex Mono",monospace;
  font-size:12.5px;
  line-height:1.65;
  padding:12px 14px;
  height:300px;
  overflow:auto;
  color:var(--console-ink);
}
.console .l{white-space:pre-wrap;word-break:break-word}
.console .cmd{color:#FFF;font-weight:500}
.console .cmd::before{content:"$ ";color:var(--accent)}
.console .out{color:var(--console-dim)}
.console .note{color:var(--ok)}
.console .quest{color:var(--ok);font-weight:600}
.panel.term .panel-head{background:var(--console-bg);border-bottom-color:#25333F;border-radius:var(--radius) var(--radius) 0 0}
.panel.term .panel-title{color:var(--console-dim)}
.panel.term{border-color:var(--console-bg);overflow:hidden}
.linkish{background:none;border:0;padding:0;cursor:pointer;font-size:11.5px;color:var(--console-dim);text-decoration:underline;text-underline-offset:3px}
.linkish:hover{color:var(--console-ink)}

.sel{
  font-family:inherit;font-size:12px;color:var(--ink);
  background:var(--surface);border:1px solid var(--line-strong);
  border-radius:6px;padding:3px 6px;max-width:60%;
}
.quest{padding:12px 14px 14px;display:flex;flex-direction:column;gap:9px}
.quest p{margin:0}
.q-brief{color:var(--ink-2);font-size:12.5px;line-height:1.5}
.q-goal{
  font-size:13.5px;font-weight:600;letter-spacing:-.01em;line-height:1.5;
  padding-left:11px;border-left:3px solid var(--accent);
}
.q-state{
  align-self:flex-start;font-size:11.5px;font-weight:600;
  color:var(--ink-3);border:1px solid var(--line);border-radius:99px;padding:2px 10px;
}
.q-state.ok{color:var(--ok);border-color:var(--ok)}
.q-hint summary{
  font-size:12px;color:var(--ink-3);cursor:pointer;
  list-style:none;text-decoration:underline;text-underline-offset:3px;width:max-content;
}
.q-hint summary::-webkit-details-marker{display:none}
.q-hint summary::before{content:"? "}
.q-hint p{margin-top:7px;font-size:12.5px;color:var(--ink-2);line-height:1.5}

.guide{padding:12px 14px 14px}
.guide dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:7px 12px;align-items:baseline}
.guide dt{
  font-family:"IBM Plex Mono",monospace;font-size:11.5px;
  color:var(--ink);background:var(--surface-2);
  border:1px solid var(--line);border-radius:5px;padding:1px 6px;white-space:nowrap;
}
.guide dd{margin:0;color:var(--ink-2);font-size:12.5px}
.guide .grp{
  margin:0 0 7px;font-size:10.5px;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink-3);
}
.guide dl + .grp{margin-top:13px;padding-top:11px;border-top:1px solid var(--line)}

/* ---------- popover ---------- */
#pop{
  position:fixed;z-index:50;width:392px;max-width:calc(100vw - 24px);
  background:var(--surface);border:1px solid var(--line-strong);
  border-radius:12px;box-shadow:var(--shadow);
  display:none;overflow:hidden;
}
#pop.open{display:block}
.pop-head{padding:11px 14px;border-bottom:1px solid var(--line);background:var(--surface-2)}
.pop-q{font-size:13.5px;font-weight:600;letter-spacing:-.01em}
.pop-sub{font-size:12px;color:var(--ink-2);margin-top:2px}
.pop-list{overflow:auto}
.cand{
  display:block;width:100%;text-align:left;border:0;border-top:1px solid var(--line);
  background:var(--surface);padding:8px 14px;cursor:pointer;
}
.pop-list .cand:first-child{border-top:0}
.cand:focus{outline:0}
.cand.cur{background:var(--accent-soft)}
.cand:focus-visible{box-shadow:inset 2px 0 0 var(--accent)}
.cand .cmd{font-family:"IBM Plex Mono",monospace;font-size:12.5px;font-weight:500;color:var(--ink);display:block;overflow-wrap:anywhere}
.pop-why{
  padding:9px 14px;border-top:1px solid var(--line);
  font-size:12px;color:var(--ink-2);line-height:1.45;
  min-height:4.9em;                 /* 고정 — 항목을 옮겨다녀도 목록이 안 출렁인다 */
}
.cand .tag{
  float:right;font-size:10.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  color:var(--ink-3);border:1px solid var(--line);border-radius:99px;padding:1px 7px;margin-left:8px;
}
.pop-foot{padding:8px 14px;border-top:1px solid var(--line);background:var(--surface-2);font-size:11.5px;color:var(--ink-3);display:flex;justify-content:space-between;gap:8px}

@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}