:root{
  --bg:#0f1117; --panel:#161a23; --panel-2:#1d2230; --line:#2a3140;
  --text:#e7ecf3; --muted:#8b95a7; --accent:#4f8cff; --danger:#ff4d4f;
  --ok:#35d07f; --warn:#ffb020; --topbar-h:56px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);
  font-family:"Pretendard","Noto Sans KR",system-ui,-apple-system,"Segoe UI",sans-serif;
  overflow:hidden}
body{display:flex;flex-direction:column;height:100vh}

/* ── 상단 바 ── */
.topbar{flex:0 0 var(--topbar-h);height:var(--topbar-h);display:flex;align-items:center;
  gap:14px;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:7px;color:var(--accent);font-size:17px;font-weight:700;white-space:nowrap}
.brand-icon{font-size:16px}
.brand-sep{width:1px;height:22px;background:var(--line)}
.mode-badge{font-size:11px;font-weight:800;letter-spacing:.14em;padding:5px 10px;border-radius:6px;
  color:#0f1117;background:linear-gradient(135deg,#7fd0ff,#4f8cff);white-space:nowrap}
.field{display:flex;flex-direction:column;gap:6px}
.field-inline{flex-direction:row;align-items:center;gap:8px}
.field-inline>span{font-size:12px;letter-spacing:.04em;color:var(--muted);font-weight:600}
select{background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:8px;
  padding:7px 10px;font-size:13px;font-weight:600;outline:none}
.field-inline#model-w select{width:230px}
#provider, #model{max-width:190px}

/* ── 과제 입력 · 실행 ── */
.prompt-input{flex:1 1 200px;min-width:130px;height:44px;background:var(--panel-2);color:var(--text);
  border:1px solid var(--line);border-radius:9px;padding:0 12px;font-size:13.5px;font-weight:600;
  font-family:inherit;outline:none;transition:border-color .15s, box-shadow .15s}
.prompt-input::placeholder{color:#5c667a;font-weight:600}
.prompt-input:focus{border-color:rgba(79,140,255,.7);box-shadow:0 0 0 3px rgba(79,140,255,.15)}
.prompt-input.need{border-color:rgba(255,77,79,.7);box-shadow:0 0 0 3px rgba(255,77,79,.14)}
.run-btn{height:44px;padding:0 18px;border-radius:9px;border:1px solid rgba(79,140,255,.55);
  background:linear-gradient(135deg,#7fd0ff,#4f8cff);color:#0b0e15;font-size:13.5px;font-weight:800;
  letter-spacing:.02em;font-family:inherit;cursor:pointer;white-space:nowrap;transition:filter .15s, opacity .15s}
.run-btn:hover{filter:brightness(1.08)}
.run-btn:disabled{opacity:.55;cursor:progress}

.timer{margin-left:auto;display:flex;align-items:center;gap:10px;font-variant-numeric:tabular-nums}
#elapsed{font-size:15px;font-weight:800;color:var(--accent)}
.round-pill{font-size:11.5px;font-weight:800;color:var(--muted);background:var(--panel-2);
  border:1px solid var(--line);border-radius:999px;padding:3px 9px}
.round-pill:empty{display:none}
.muted{color:var(--muted);font-size:12.5px;font-weight:600}

/* ── 3단 레이아웃 ── */
.layout{flex:1;display:grid;grid-template-columns:270px 1fr 400px;gap:0;min-height:0}
.left,.right{display:flex;flex-direction:column;min-height:0;background:var(--panel);
  border-right:1px solid var(--line)}
.right{border-right:none;border-left:1px solid var(--line)}
.center{display:flex;flex-direction:column;min-height:0;padding:12px 14px;gap:10px}
.panel{display:flex;flex-direction:column;min-height:0;padding:12px 12px 10px}
.panel.grow{flex:1;min-height:0;overflow:hidden}
.panel-head{display:flex;align-items:center;gap:8px;margin-bottom:9px}
.panel-head h2{margin:0;font-size:12.5px;font-weight:800;letter-spacing:.08em;color:var(--muted);
  text-transform:uppercase}
.pill{font-size:11px;font-weight:800;padding:3px 8px;border-radius:999px;
  background:var(--panel-2);color:var(--muted);border:1px solid var(--line)}
.pill.on{background:rgba(53,208,127,.16);color:var(--ok);border-color:rgba(53,208,127,.4)}
.pill.off{background:rgba(139,149,167,.12);color:var(--muted)}

/* 파일 트리 */
.tree{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px;overflow:auto}
.tree li{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;
  font-size:13px;font-weight:600;color:var(--muted);border:1px solid transparent;
  transition:all .25s ease}
.tree li .ic{font-size:12px;opacity:.8}
.tree li.new{color:var(--text);background:var(--panel-2);border-color:rgba(79,140,255,.45);
  box-shadow:0 0 0 3px rgba(79,140,255,.08)}
.tree li .sz{margin-left:auto;font-size:11px;color:var(--muted);font-weight:700}

/* 실행 기록 */
.runs{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;overflow:auto}
.runs li{font-size:12.5px;padding:8px 10px;border-radius:8px;background:var(--panel-2);
  border-left:3px solid var(--line);color:var(--muted);display:flex;gap:8px;align-items:center}
.runs li.ok{border-left-color:var(--ok);color:var(--text)}
.runs li.bad{border-left-color:var(--danger);color:#ffb3b4}
.runs li .t{margin-left:auto;font-variant-numeric:tabular-nums;font-size:11px;opacity:.75}

/* 미리보기 */
.preview-head{margin:0}
.preview-wrap{position:relative;flex:1;min-height:0;border:1px solid var(--line);border-radius:12px;
  background:#0b0d13;overflow:hidden}
#preview{width:100%;height:100%;border:0;background:#fff;display:none}
#preview.on{display:block}
.empty-state{position:absolute;inset:0;display:flex;flex-direction:column;gap:12px;
  align-items:center;justify-content:center;color:var(--muted);font-size:13.5px;font-weight:600}
.empty-icon{font-size:34px;opacity:.35}
.empty-state.hide{display:none}

/* 5축 체크리스트 */
.axes{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:8px}
.axis{padding:10px 12px;border-radius:10px;background:var(--panel);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:6px;transition:all .3s ease;min-width:0}
.axis .k{font-size:11px;font-weight:800;letter-spacing:.06em;color:var(--muted);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.axis .v{font-size:13px;font-weight:800;color:var(--muted)}
.axis .d{font-size:10.5px;line-height:1.35;color:var(--muted);opacity:.85;
  word-break:break-word;max-height:2.7em;overflow:hidden}
.axis .d:empty{display:none}
.axis.pass{border-color:rgba(53,208,127,.5);background:rgba(53,208,127,.10)}
.axis.pass .v{color:var(--ok)}
.axis.fail{border-color:rgba(255,77,79,.5);background:rgba(255,77,79,.10)}
.axis.fail .v{color:var(--danger)}
.axis.fail .d{color:#ffb3b4;opacity:1}

/* 타임라인 */
.timeline{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0;overflow:auto}
.timeline li{position:relative;padding:0 0 16px 26px;opacity:0;transform:translateY(8px);
  animation:tin .35s ease forwards}
@keyframes tin{to{opacity:1;transform:translateY(0)}}
.timeline li::before{content:'';position:absolute;left:6px;top:6px;width:9px;height:9px;
  border-radius:50%;background:var(--line);box-shadow:0 0 0 3px var(--panel)}
.timeline li::after{content:'';position:absolute;left:10px;top:18px;bottom:0;width:1px;background:var(--line)}
.timeline li:last-child::after{display:none}
.timeline li.ok::before{background:var(--ok);box-shadow:0 0 0 3px rgba(53,208,127,.2)}
.timeline li.bad::before{background:var(--danger);box-shadow:0 0 0 3px rgba(255,77,79,.2)}
.timeline li.run::before{background:var(--accent);box-shadow:0 0 0 3px rgba(79,140,255,.2)}
.timeline li.patch::before{background:var(--warn);box-shadow:0 0 0 3px rgba(255,176,32,.25)}
.timeline li.restore::before{background:#4aa3ff;box-shadow:0 0 0 3px rgba(74,163,255,.22)}
.tl-head{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.tl-tool{font-size:11.5px;font-weight:800;letter-spacing:.04em;padding:2px 7px;border-radius:5px;
  background:var(--panel-2);color:var(--accent);border:1px solid var(--line)}
.tl-tool.patch{color:#ffd166}.tl-tool.run{color:#7fd0ff}.tl-tool.ok{color:var(--ok)}
.tl-tool.retry{color:var(--warn)}.tl-tool.verify{color:#7fd0ff}.tl-tool.checks{color:#ffd166}
.tl-tool.bad{color:var(--danger)}
.tl-tool.restore{color:#7fc4ff}
.tl-ms{margin-left:auto;font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.tl-body{font-size:12.5px;line-height:1.5;color:#c9d3e2;word-break:break-word}
.tl-body code{background:#0b0d13;padding:1px 6px;border-radius:5px;font-size:11.5px;color:#9fd0ff}
.tl-body .dim{color:var(--muted)}
.tl-body .err{color:#ffb3b4}