:root{--bg:#090c12;--panel:#111722;--panel2:#0d131c;--line:rgba(255,255,255,.09);--text:#eef2f7;--muted:#8995a8;--gold:#f0cd74;--cyan:#67d9de;--red:#ff7281;--green:#43d39e}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(circle at 15% 0,rgba(103,217,222,.08),transparent 36rem),var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif}.studio-shell{width:min(1500px,100%);margin:auto;padding:18px 18px calc(40px + var(--po-safe-bottom))}button,input,textarea,select{font:inherit}.top{display:flex;gap:14px;align-items:center;justify-content:space-between;margin-bottom:16px}.top a{color:var(--muted);text-decoration:none;border:1px solid var(--line);padding:10px 12px;border-radius:12px;font-size:11px;font-weight:900}.brand span,.kicker{font-size:9px;font-weight:900;letter-spacing:.16em;color:var(--gold)}.brand h1{margin:3px 0 0;font-size:25px}.actions{display:flex;gap:8px;flex-wrap:wrap}.btn{border:1px solid var(--line);background:#111925;color:var(--text);padding:10px 12px;border-radius:12px;font-size:10px;font-weight:900;cursor:pointer}.btn.primary{background:var(--gold);color:#19150b;border-color:transparent}.btn.danger{color:var(--red)}.layout{display:grid;grid-template-columns:260px minmax(0,1fr) 390px;gap:12px;align-items:start}.panel{border:1px solid var(--line);background:rgba(17,23,34,.94);border-radius:20px;padding:14px;min-width:0}.panel h2{font-size:15px;margin:0 0 12px}.nodes{display:grid;gap:7px;max-height:calc(var(--po-vvh) - 180px);overflow:auto}.node{border:1px solid var(--line);background:#0e141e;border-radius:12px;padding:11px;text-align:left;color:var(--text);cursor:pointer}.node.active{border-color:rgba(240,205,116,.5);background:rgba(240,205,116,.07)}.node b{display:block;font-size:11px}.node small{color:var(--muted);font-size:9px}.field{display:grid;gap:5px;margin-bottom:10px}.field span{font-size:9px;color:var(--muted);font-weight:900;letter-spacing:.08em}.input,.textarea{width:100%;border:1px solid var(--line);background:#0b1119;color:var(--text);border-radius:11px;padding:10px;outline:none}.textarea{min-height:100px;resize:vertical}.choices{display:grid;gap:8px}.choice{border:1px solid var(--line);border-radius:14px;padding:10px;background:#0c121b}.choice-grid{display:grid;grid-template-columns:1fr 120px;gap:8px}.choice textarea{min-height:66px}.choice footer{display:flex;gap:7px;justify-content:flex-end;margin-top:7px}.preview-card{border:1px solid rgba(103,217,222,.22);background:linear-gradient(160deg,rgba(103,217,222,.055),#0c121b);border-radius:18px;padding:16px}.preview-card h3{font-size:19px;margin:7px 0}.preview-card p{color:#c8d0dc;line-height:1.55;font-size:13px}.preview-choices{display:grid;gap:8px;margin-top:14px}.preview-choices button{border:1px solid var(--line);background:#111a27;color:var(--text);padding:11px;border-radius:12px;text-align:left;font-weight:800}.state-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:12px}.state-grid div{border:1px solid var(--line);background:#0a1018;padding:9px;border-radius:10px}.state-grid small{display:block;color:var(--muted);font-size:8px}.state-grid b{font-size:12px}.notice{border-radius:12px;padding:10px;margin-bottom:10px;font-size:10px;line-height:1.5;background:rgba(67,211,158,.08);border:1px solid rgba(67,211,158,.2)}.notice.bad{background:rgba(255,114,129,.07);border-color:rgba(255,114,129,.25)}.jsonbox{min-height:290px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:10px}.tiny{font-size:9px;color:var(--muted);line-height:1.5}.node-actions{display:flex;gap:7px;margin-top:9px}.pack-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px}.pack-meta .field:first-child{grid-column:1/-1}@media(max-width:1050px){.layout{grid-template-columns:220px minmax(0,1fr)}.preview-panel{grid-column:1/-1}}@media(max-width:700px){.studio-shell{padding:12px 10px calc(28px + var(--po-safe-bottom))}.top{align-items:flex-start}.brand h1{font-size:20px}.layout{display:block}.panel{margin-bottom:10px}.nodes{max-height:none;grid-template-columns:repeat(2,minmax(0,1fr))}.choice-grid,.pack-meta{grid-template-columns:1fr}.actions .btn:not(.primary){padding:9px}.preview-panel{position:static}}

/* v6.1.0 · platform brand refresh */
:root{--bg:#0F172A;--panel:#101827;--line:rgba(255,255,255,.10);--text:#EEF4FF;--muted:#94A3B8;--gold:#FBBF24;--cyan:#14B8A6;--red:#FB7185}
.btn.primary{background:linear-gradient(135deg,#3B82F6,#14B8A6);color:white}
.preview-card{border-color:rgba(59,130,246,.22);background:linear-gradient(160deg,rgba(59,130,246,.08),rgba(20,184,166,.04),#0c121b)}
.node.active{border-color:rgba(59,130,246,.5);background:rgba(59,130,246,.08)}