:root{
  --bg:#0a0e14;
  --bg2:#0f1520;
  --panel:#121a24;
  --panel2:#17202c;
  --line:#24303d;
  --line2:#2e3c4c;
  --text:#e6edf3;
  --muted:#8b98a5;
  --amber:#ffb000;
  --amber-dim:rgba(255,176,0,.16);
  --green:#3fb950;
  --green-dim:rgba(63,185,80,.14);
  --red:#f85149;
  --red-dim:rgba(248,81,73,.14);
  --cyan:#58a6ff;
  --cyan-dim:rgba(88,166,255,.14);
  --violet:#bc8cff;
  --violet-dim:rgba(188,140,255,.14);
  --orange:#f0883e;
  --orange-dim:rgba(240,136,62,.16);
  --gridline:rgba(255,255,255,.045);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  background:radial-gradient(1100px 560px at 72% -8%,#15222f 0%,var(--bg) 55%);
  color:var(--text);font-family:var(--sans);font-size:14px;overflow:hidden;
}
.hidden{display:none!important}
.muted{color:var(--muted);font-weight:400}
.mono{font-family:var(--mono)}
#app{display:flex;flex-direction:column;height:100vh}

/* ===== Topbar ===== */
#topbar{
  flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:10px 18px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(23,32,44,.85),rgba(13,18,26,.85));
  backdrop-filter:blur(6px);z-index:20;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.logo{font-size:26px;color:var(--amber);text-shadow:0 0 14px var(--amber)}
.brand h1{font-size:17px;margin:0;letter-spacing:.3px;white-space:nowrap}
.brand h1 .pro{color:var(--amber);font-size:12px;font-weight:800;border:1px solid var(--amber);border-radius:4px;padding:1px 5px;vertical-align:2px;margin-left:4px}
.tagline{margin:2px 0 0;font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.controls{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.btn{
  appearance:none;border:1px solid var(--line2);background:var(--panel2);color:var(--text);
  padding:8px 13px;border-radius:7px;cursor:pointer;font:600 13px var(--sans);
  transition:border-color .15s,background .15s,transform .05s;
}
.btn:hover:not(:disabled){border-color:var(--muted)}
.btn:active:not(:disabled){transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-primary{background:var(--amber);border-color:var(--amber);color:#171205}
.btn-primary:hover:not(:disabled){background:#ffc43d;border-color:#ffc43d}
.speed{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px}
.speed select{
  appearance:none;background:var(--panel2);border:1px solid var(--line2);color:var(--text);
  padding:6px 8px;border-radius:6px;font:600 12px var(--sans);cursor:pointer;
}

/* ===== Node-Bar ===== */
#nodebar{
  flex:0 0 auto;display:flex;gap:6px;padding:8px 18px;border-bottom:1px solid var(--line);
  background:rgba(10,14,20,.6);overflow-x:auto;
}
#nodebar .nchip{
  flex:0 0 auto;display:flex;align-items:center;gap:6px;padding:5px 11px;border-radius:20px;
  border:1px solid var(--line);background:var(--panel);color:var(--muted);font-size:12px;white-space:nowrap;transition:all .2s;
}
#nodebar .nchip.active{border-color:var(--amber);color:var(--text);background:var(--amber-dim);box-shadow:0 0 12px rgba(255,176,0,.25)}
#nodebar .nchip.done{border-color:var(--line2);color:var(--muted);opacity:.85}
#nodebar .nchip.done::before{content:"✓";color:var(--green);font-weight:800}
#nodebar .nchip.goal.active{border-color:var(--green);background:var(--green-dim);box-shadow:0 0 12px rgba(63,185,80,.25)}

/* ===== Body / Stage ===== */
.body{flex:1 1 auto;display:flex;min-height:0}
#stage{flex:1 1 auto;display:flex;min-width:0;position:relative}
.scroll{flex:1 1 auto;overflow:auto;position:relative}
#tree{position:relative;height:600px}
#edges{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
.edge{fill:none;stroke-width:2.5}
.edge-dead{stroke:#3a4551;stroke-dasharray:6 6;opacity:.75}
.edge-collapsed{stroke:var(--red);stroke-dasharray:6 6;opacity:.35}
.edge-alive{stroke:var(--amber);stroke-width:3;filter:drop-shadow(0 0 6px var(--amber));stroke-dasharray:900;animation:draw 1.1s ease forwards}
@keyframes draw{from{stroke-dashoffset:900}to{stroke-dashoffset:0}}

#nodes{position:absolute;inset:0;z-index:1}
.tnode,.tstub{
  position:absolute;transform:translate(-50%,-50%);width:232px;border-radius:10px;padding:11px 13px;
  background:var(--panel);border:1px solid var(--line2);cursor:pointer;
  animation:pop .3s cubic-bezier(.2,.9,.3,1.2);transition:border-color .2s,box-shadow .2s;
}
.tnode:hover,.tstub:hover{border-color:var(--muted);box-shadow:0 6px 22px rgba(0,0,0,.5)}
@keyframes pop{from{opacity:0;transform:translate(-50%,-50%) scale(.85)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}
.nlabel{font-weight:700;font-size:13px;line-height:1.25}
.nsub{font-size:11px;color:var(--muted);line-height:1.3;margin-top:2px}
.nhash{font:600 11px var(--mono);color:var(--orange);margin-top:5px}
.ndir{display:inline-block;margin-top:6px;padding:2px 7px;border-radius:4px;font:600 10.5px var(--mono);color:var(--muted);background:var(--panel2);border:1px solid var(--line)}
.tnode-start{border-color:var(--amber);background:linear-gradient(135deg,var(--amber-dim),var(--panel) 55%)}
.tnode-start .nlabel{color:var(--amber)}
.tnode-milestone{border-color:var(--cyan)}
.tnode-milestone .nlabel{color:var(--cyan)}
.tnode-goal{border-color:var(--green);width:270px;background:linear-gradient(135deg,var(--green-dim),var(--panel) 55%);box-shadow:0 0 26px rgba(63,185,80,.25)}
.tnode-goal .nlabel{color:var(--green);font-size:15px}

.tstub{border-color:var(--line);background:var(--panel2);opacity:.9}
.tstub .nlabel{font-size:12px;color:var(--text)}
.tstub .x{position:absolute;top:-9px;right:-9px;width:22px;height:22px;border-radius:50%;background:var(--red);color:#fff;display:none;align-items:center;justify-content:center;font-size:13px;font-weight:800;box-shadow:0 0 10px var(--red)}
.tstub.collapsed{opacity:.38;border-color:var(--red);transform:translate(-50%,-50%) scale(.96)}
.tstub.collapsed .x{display:flex}
.tstub.collapsed .nlabel{text-decoration:line-through;color:var(--muted)}
.tstub.collapsed .nsub{opacity:.5}

/* ===== Sidebar ===== */
#sidebar{flex:0 0 400px;border-left:1px solid var(--line);background:var(--bg2);overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px}
.panel{border:1px solid var(--line);border-radius:9px;background:var(--panel);padding:10px 12px}
.panel>h2{font-size:13px;margin:0 0 8px;display:flex;align-items:baseline;gap:6px}
details.panel summary{cursor:pointer;list-style:none;display:flex;align-items:center}
details.panel summary::-webkit-details-marker{display:none}
details.panel summary::before{content:"▸";color:var(--muted);margin-right:6px;transition:transform .15s}
details.panel[open] summary::before{transform:rotate(90deg)}
details.panel summary h2{margin:0;font-size:13px;display:flex;align-items:baseline;gap:6px}

/* ===== Pyramid ===== */
#pyramid{display:flex;flex-direction:column}
.pyr{
  position:relative;margin:0 auto 3px;height:46px;border:1px solid var(--line);border-radius:7px;
  background:var(--panel2);padding:4px 10px 4px 22px;display:flex;align-items:center;transition:border-color .25s,background .25s;
}
.pyr-dot{position:absolute;left:9px;top:50%;transform:translateY(-50%);width:9px;height:9px;border-radius:50%;background:#3a4551}
.pyr-txt{display:flex;flex-direction:column;justify-content:center;min-width:0}
.pyr-txt b{font-size:12px;line-height:1.15}
.pyr-txt span{font-size:10px;color:var(--muted);line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pyr[data-state="ok"]{border-color:var(--green)}
.pyr[data-state="ok"] .pyr-dot{background:var(--green);box-shadow:0 0 9px var(--green)}
.pyr[data-state="fail"]{border-color:var(--red);background:var(--red-dim)}
.pyr[data-state="fail"] .pyr-dot{background:var(--red);box-shadow:0 0 9px var(--red);animation:blink .5s steps(2) infinite}
@keyframes blink{50%{opacity:.3}}

/* ===== git / diff / log / playbook ===== */
#gitList{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:5px;max-height:220px;overflow-y:auto}
#gitList li{padding:7px 9px;border:1px solid var(--line);border-radius:6px;background:var(--panel2);font-size:12px;display:flex;flex-direction:column;gap:2px}
#gitList li .hash{font:600 12px var(--mono);color:var(--orange)}
#gitList li .msg{font-weight:600}
#gitList li .who{font-size:11px;color:var(--muted)}
pre#diffBox,pre#logBox{
  margin:0;font:12px/1.55 var(--mono);background:#0b1017;border:1px solid var(--line);
  border-radius:6px;padding:9px;overflow:auto;white-space:pre-wrap;word-break:break-word;
}
pre#logBox{max-height:220px;color:#9fb6c9}
#diffBox{max-height:220px;color:#c9d4dd}
#logBox .ok{color:var(--green)}
#logBox .err{color:var(--red)}
#logBox .warn{color:var(--orange)}
#logBox .info{color:var(--cyan)}
#playbookList{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px}
#playbookList li{padding:7px 9px;border:1px solid var(--line);border-radius:6px;background:var(--panel2);font-size:12px}
#playbookList li b{display:inline-block;min-width:20px;color:var(--amber);font-family:var(--mono)}
#playbookList li em{display:block;font-style:normal;color:var(--violet);font-size:11px;margin:1px 0 2px}
#playbookList li p{margin:0;color:var(--muted);font-size:11px;line-height:1.35}
#lessonBox{display:flex;flex-direction:column;gap:5px;margin-top:8px}
.lesson{padding:6px 9px;border-left:3px solid var(--amber);border-radius:4px;background:var(--amber-dim);font-size:11.5px;line-height:1.35}

/* ===== Goal overlay ===== */
#goalOverlay{
  position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;
  background:rgba(5,8,12,.72);backdrop-filter:blur(5px);
}
.goalCard{
  width:min(640px,92vw);border:1px solid var(--line2);border-radius:14px;background:var(--panel);
  padding:26px 30px;text-align:center;box-shadow:0 20px 80px rgba(0,0,0,.6),0 0 40px rgba(63,185,80,.12);
}
.goalHead{font-size:24px;font-weight:800;color:var(--green);letter-spacing:.5px}
.goalSub{margin:8px 0 18px;color:var(--muted)}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}
.kpi{border:1px solid var(--line);border-radius:9px;background:var(--panel2);padding:12px 8px}
.kpi b{display:block;font-size:22px;color:var(--amber);font-family:var(--mono)}
.kpi span{font-size:11px;color:var(--muted)}

/* ===== Detail-Drawer ===== */
#detail{
  position:fixed;right:18px;bottom:18px;z-index:60;width:min(440px,92vw);
  border:1px solid var(--line2);border-radius:11px;background:var(--panel);padding:14px 16px;
  box-shadow:0 18px 60px rgba(0,0,0,.6);animation:pop .2s ease;
}
#detail .dhead{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
#detail .dhead span{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted)}
#detail h3{margin:0 0 6px;font-size:15px}
#detail p{margin:0 0 8px;color:var(--muted);line-height:1.4}
#detail pre{margin:0;font:12px/1.5 var(--mono);background:#0b1017;border:1px solid var(--line);border-radius:6px;padding:9px;overflow:auto;max-height:180px}
#detail button{position:absolute;top:10px;right:12px;background:none;border:none;color:var(--muted);font-size:18px;cursor:pointer}

/* ===== Scrollbars ===== */
.scroll::-webkit-scrollbar,#sidebar::-webkit-scrollbar,pre::-webkit-scrollbar,#gitList::-webkit-scrollbar{height:10px;width:10px}
.scroll::-webkit-scrollbar-thumb,#sidebar::-webkit-scrollbar-thumb,pre::-webkit-scrollbar-thumb,#gitList::-webkit-scrollbar-thumb{background:#2e3c4c;border-radius:5px}
.scroll::-webkit-scrollbar-track,#sidebar::-webkit-scrollbar-track,pre::-webkit-scrollbar-track,#gitList::-webkit-scrollbar-track{background:transparent}

@media (max-width:1150px){
  .body{flex-direction:column;overflow-y:auto}
  #stage{min-height:52vh;flex:0 0 auto}
  #sidebar{flex:0 0 auto;border-left:none;border-top:1px solid var(--line)}
  .brand h1{font-size:15px}
  .tagline{display:none}
}