static/style.css

:root{
  --bg:#f6f7f9; --card:#fff; --rule:#e4e7ec; --ink:#141a20; --dim:#6b7684;
  --acc:#1f7a5a; --acc-soft:#e8f3ee; --acc-line:#8fd0b8;
  --warm:#b4762a; --shadow:0 1px 2px rgba(20,26,32,.04),0 12px 32px -20px rgba(20,26,32,.35);
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0d1114; --card:#151b20; --rule:#242c33; --ink:#e6ecf1; --dim:#8b98a5;
        --acc:#4fbf95; --acc-soft:#14261f; --acc-line:#2f6f59;
        --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px -20px rgba(0,0,0,.8);}
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
     font-family:"IBM Plex Sans Arabic",system-ui,sans-serif;font-size:15px;line-height:1.7}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums}
.wrap{max-width:1180px;margin:0 auto;padding:26px 20px 60px;display:flex;flex-direction:column;gap:20px}

header{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.brand{display:flex;gap:13px;align-items:center}
.logo{font-size:31px;line-height:1}
h1{margin:0;font-size:25px;font-weight:700;letter-spacing:-.02em}
.sub{margin:2px 0 0;color:var(--dim);font-size:13.5px;max-width:62ch}
.modelchip{display:flex;align-items:center;gap:9px;background:var(--card);border:1px solid var(--rule);
  border-radius:99px;padding:7px 15px;font-size:13px;box-shadow:var(--shadow)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--warm);flex:none}
.dot.on{background:var(--acc);box-shadow:0 0 0 4px var(--acc-soft)}
.modelchip .mono{color:var(--dim);font-size:12px}

.presets{display:flex;gap:8px;flex-wrap:wrap}
.preset{background:var(--card);border:1px solid var(--rule);border-radius:99px;padding:6px 14px;
  font-size:13px;cursor:pointer;color:var(--ink);font-family:inherit;transition:.15s}
.preset:hover{border-color:var(--acc);color:var(--acc)}
.preset.on{background:var(--acc);border-color:var(--acc);color:#fff}
.preset:focus-visible{outline:2px solid var(--acc);outline-offset:2px}

.stage{position:relative;display:grid;grid-template-columns:1fr 168px 1.25fr;gap:20px;align-items:start}
@media (max-width:900px){.stage{grid-template-columns:1fr}.wires{display:none}}
.wires{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
.card,.node{position:relative;z-index:1;background:var(--card);border:1px solid var(--rule);
  border-radius:14px;box-shadow:var(--shadow)}
.card{padding:16px 18px}
label{font-size:11px;font-weight:600;letter-spacing:.1em;color:var(--dim);text-transform:uppercase}
textarea{width:100%;margin-top:9px;border:1px solid var(--rule);border-radius:9px;background:transparent;
  color:var(--ink);padding:12px;font-family:inherit;font-size:15px;line-height:1.9;resize:vertical}
textarea:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 3px var(--acc-soft)}
.hint{margin-top:7px;color:var(--dim);font-size:11.5px}

.node{padding:18px 12px;display:flex;flex-direction:column;align-items:center;gap:7px;
  align-self:center;text-align:center}
.node-lbl{font-size:10px;letter-spacing:.12em;color:var(--dim);text-transform:uppercase}
.orb{width:58px;height:58px;border-radius:50%;border:1.5px solid var(--acc);display:grid;place-items:center;
  background:radial-gradient(circle at 34% 30%,var(--acc-soft),transparent 72%)}
.orb span{width:13px;height:13px;border-radius:50%;background:var(--acc);opacity:.85}
.orb.busy span{animation:pulse .7s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.75);opacity:.35}}
.node-name{font-weight:600;font-size:14px}
.node-meta{font-size:11px;color:var(--dim)}

.cats-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:11px}
.stats{font-size:11.5px;color:var(--dim)}
.row{position:relative;display:flex;align-items:center;gap:9px;border:1px solid var(--rule);
  border-radius:9px;margin-bottom:7px;overflow:hidden;background:var(--card);transition:border-color .18s}
.row .fill{position:absolute;inset:0 auto 0 0;background:var(--acc-soft);z-index:0;
  transition:width .4s cubic-bezier(.22,1,.36,1)}
.row.top{border-color:var(--acc)}
.row input{position:relative;z-index:1;flex:1;min-width:0;border:0;background:transparent;color:var(--ink);
  font-family:inherit;font-size:14px;padding:11px 13px}
.row input:focus{outline:none}
.pct{position:relative;z-index:1;font-family:"IBM Plex Mono",monospace;font-size:12.5px;font-weight:500;
  color:var(--dim);min-width:52px;text-align:left;padding-left:4px}
.row.top .pct{color:var(--acc);font-weight:600}
.del{position:relative;z-index:1;border:0;background:transparent;color:var(--dim);cursor:pointer;
  font-size:17px;line-height:1;padding:0 12px 2px}
.del:hover{color:#c0392b}
.add{margin-top:4px;width:100%;border:1px dashed var(--rule);background:transparent;color:var(--dim);
  border-radius:9px;padding:9px;cursor:pointer;font-family:inherit;font-size:13px;transition:.15s}
.add:hover{border-color:var(--acc);color:var(--acc)}

footer{border-top:1px solid var(--rule);padding-top:16px;color:var(--dim);font-size:12.5px}
footer p{margin:0 0 6px;max-width:88ch}
footer strong{color:var(--ink)}
.links a{color:var(--acc);text-decoration:none}
.links a:hover{text-decoration:underline}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.submitbar{display:flex;align-items:center;gap:11px;margin-top:11px}
.go{border:1px solid var(--acc);background:var(--acc);color:#fff;border-radius:9px;
  padding:10px 20px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;
  transition:.15s;flex:none}
.go:hover{filter:brightness(1.07)}
.go:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
.go:disabled{background:transparent;color:var(--dim);border-color:var(--rule);cursor:default;
  filter:none}
/* pulses only while a category edit is waiting to be applied */
.go.dirty{animation:nudge 1.5s ease-in-out infinite}
@keyframes nudge{0%,100%{box-shadow:0 0 0 0 var(--acc-soft)}50%{box-shadow:0 0 0 6px var(--acc-soft)}}
.dirtynote{font-size:12px;color:var(--warm)}