:root{
  --bg:#0b0d10; --bg2:#12151a; --panel:#161a20; --panel2:#1b2027;
  --line:#272d36; --line2:#333a45; --txt:#e8edf3; --mut:#8b95a3; --mut2:#6b7684;
  --acc:#5b9dff; --acc2:#3f7fe0; --good:#39d98a; --warn:#ffcc66; --bad:#ff6b6b;
  --vio:#b794f6; --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--txt);font-family:var(--font);font-size:15px;-webkit-font-smoothing:antialiased;overflow:hidden}
#app{height:100vh;height:100dvh;display:flex;flex-direction:column}
.boot{margin:auto;color:var(--mut);font-size:14px}
button{font-family:inherit;cursor:pointer}
a{color:var(--acc);text-decoration:none}

/* ---- top bar ---- */
.bar{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--bg2);border-bottom:1px solid var(--line);flex:0 0 auto;min-height:52px}
.brand{font-weight:700;letter-spacing:.3px;display:flex;align-items:center;gap:8px}
.brand .dot{width:8px;height:8px;border-radius:50%;background:var(--acc);box-shadow:0 0 10px var(--acc)}
.grow{flex:1}
.who{color:var(--mut);font-size:13px}
.who b{color:var(--txt);font-weight:600}
.btn{border:1px solid var(--line2);background:var(--panel2);color:var(--txt);padding:7px 13px;border-radius:9px;font-size:13.5px;font-weight:600;transition:.12s;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover{border-color:var(--acc);background:#1f2733}
.btn.pri{background:var(--acc2);border-color:var(--acc2);color:#fff}
.btn.pri:hover{background:var(--acc)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--mut)}
.btn.ghost:hover{color:var(--txt);background:var(--panel2)}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn.danger:hover{border-color:var(--bad);color:var(--bad)}

/* ---- gallery ---- */
.wrap{flex:1;overflow:auto;padding:26px clamp(16px,5vw,56px)}
.ghead{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:0 0 22px}
.ghead h1{font-size:22px;margin:0;font-weight:700}
.ghead .sub{color:var(--mut);font-size:13px;margin-top:2px}
.sect{color:var(--mut2);font-size:12px;text-transform:uppercase;letter-spacing:.12em;margin:26px 0 12px;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;cursor:pointer;transition:.14s;position:relative;display:flex;flex-direction:column;min-height:148px}
.card:hover{border-color:var(--acc);transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.card .thumb{flex:1;background:radial-gradient(120% 120% at 20% 10%,#1d2430,#13171d);display:flex;align-items:center;justify-content:center;font-size:34px;color:var(--mut)}
.card.flow .thumb{background:radial-gradient(120% 120% at 20% 10%,#1a2230,#121820)}
.card .meta{padding:11px 13px;border-top:1px solid var(--line)}
.card .ttl{font-weight:650;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card .foot{display:flex;align-items:center;gap:8px;margin-top:5px;color:var(--mut);font-size:11.5px}
.tag{font-size:10.5px;font-weight:700;letter-spacing:.04em;padding:2px 7px;border-radius:6px;text-transform:uppercase}
.tag.flow{background:rgba(183,148,246,.16);color:var(--vio)}
.tag.draw{background:rgba(91,157,255,.15);color:var(--acc)}
.tag.ro{background:rgba(255,204,102,.14);color:var(--warn)}
.card .kebab{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:8px;border:1px solid var(--line2);background:rgba(10,12,15,.75);color:var(--txt);font-size:17px;opacity:.85;transition:.12s;display:flex;align-items:center;justify-content:center;line-height:1}
.card:hover .kebab{opacity:1}
.card .kebab:hover{color:#fff;background:var(--acc2);border-color:var(--acc2)}
.empty{color:var(--mut);padding:40px 0;text-align:center}
.newcard{border:1.5px dashed var(--line2);background:transparent;color:var(--mut);align-items:center;justify-content:center;gap:6px}
.newcard:hover{color:var(--acc);border-color:var(--acc);transform:none;box-shadow:none}
.newcard .big{font-size:30px;line-height:1}

/* ---- editor ---- */
.editor{flex:1;display:none;flex-direction:column;min-height:0}
.editor.on{display:flex}
.etopbar{flex:0 0 auto;display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg2);border-bottom:1px solid var(--line);min-height:50px}
#ex-wrap{flex:1;position:relative;min-height:0}
#ex-root{position:absolute;inset:0}
.dio-frame{position:absolute;inset:0;width:100%;height:100%;border:0;background:#0f1216;display:block}
.etitle{background:transparent;border:none;color:var(--txt);font-weight:650;font-size:15px;padding:5px 8px;border-radius:7px;min-width:120px;max-width:40vw}
.etitle:focus{outline:none;background:var(--panel2)}
.save-st{font-size:11.5px;color:var(--mut2);min-width:54px}
.save-st.ok{color:var(--good)}
.save-st.err{color:var(--bad)}

/* node palette (flow) — docked right so it never covers Excalidraw's own panels */
.palette{position:absolute;right:10px;top:10px;z-index:4;width:184px;background:rgba(18,21,26,.95);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:0 10px 30px rgba(0,0,0,.45);max-height:calc(100% - 20px);overflow:auto}
.palette .pclose{position:absolute;top:8px;right:8px;width:24px;height:24px;border:none;background:transparent;color:var(--mut);font-size:15px;border-radius:6px}
.palette .pclose:hover{color:var(--txt);background:var(--panel2)}
.palreopen{position:absolute;right:10px;top:10px;z-index:4}
.palette .phd{font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;color:var(--mut2);font-weight:700;margin:8px 2px 6px}
.palette .phd:first-child{margin-top:0}
.nbtn{width:100%;display:flex;align-items:center;gap:9px;border:1px solid var(--line);background:var(--panel2);color:var(--txt);border-radius:9px;padding:8px 9px;font-size:12.8px;font-weight:600;margin-bottom:6px;text-align:left;transition:.1s}
.nbtn:hover{border-color:var(--acc);background:#232c38}
.nbtn .ic{width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13px;flex:0 0 auto}
.palette.hide{display:none}
.phint{color:var(--mut2);font-size:11px;line-height:1.5;margin:8px 2px 2px;border-top:1px solid var(--line);padding-top:8px}

/* ---- modal / share ---- */
.scrim{position:fixed;inset:0;background:rgba(5,7,10,.72);backdrop-filter:blur(3px);z-index:40;display:flex;align-items:center;justify-content:center;padding:18px}
.modal{background:var(--panel);border:1px solid var(--line2);border-radius:16px;width:min(560px,100%);max-height:88vh;overflow:auto;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.mhd{display:flex;align-items:center;gap:10px;padding:16px 18px;border-bottom:1px solid var(--line)}
.mhd h3{margin:0;font-size:16px}
.mbd{padding:16px 18px}
.mft{padding:14px 18px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end}
.row{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:none}
.row .nm{flex:1}
.row .nm b{font-weight:650}
.row .nm small{display:block;color:var(--mut);font-size:11.5px}
.seg{display:inline-flex;border:1px solid var(--line2);border-radius:8px;overflow:hidden}
.seg button{border:none;background:transparent;color:var(--mut);padding:5px 11px;font-size:12px;font-weight:600}
.seg button.on{background:var(--acc2);color:#fff}
.sw{width:42px;height:24px;border-radius:14px;border:1px solid var(--line2);background:var(--bg);position:relative;transition:.15s;flex:0 0 auto}
.sw::after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:var(--mut);transition:.15s}
.sw.on{background:var(--acc2);border-color:var(--acc2)}
.sw.on::after{left:20px;background:#fff}
.code{font-family:var(--mono);font-size:11.5px;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px;white-space:pre;overflow:auto;max-height:46vh;color:#cdd6e2}
.note{color:var(--mut);font-size:12.5px;line-height:1.55}
.note.warn{color:var(--warn)}

/* ---- login ---- */
.login{margin:auto;width:min(360px,92vw);text-align:center}
.login .logo{font-size:42px;margin-bottom:10px}
.login h2{margin:0 0 4px;font-size:20px}
.login p{color:var(--mut);margin:0 0 20px;font-size:13.5px}
.login input{width:100%;padding:13px 14px;border-radius:11px;border:1px solid var(--line2);background:var(--panel);color:var(--txt);font-size:16px;text-align:center;letter-spacing:.3em}
.login input:focus{outline:none;border-color:var(--acc)}
.login .btn{width:100%;justify-content:center;margin-top:12px;padding:13px}
.login .err{color:var(--bad);font-size:13px;margin-top:10px;min-height:18px}

.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--panel2);border:1px solid var(--line2);color:var(--txt);padding:11px 18px;border-radius:11px;z-index:60;font-size:13.5px;box-shadow:0 10px 30px rgba(0,0,0,.5);opacity:0;transition:.2s}
.toast.on{opacity:1}
.toast.bad{border-color:var(--bad)}

@media (max-width:640px){
  .palette{width:160px;top:60px}
  .etitle{max-width:32vw}
  .wrap{padding:18px 14px}
}

/* ===== Workflow canvas (Drawflow) — dark theme ===== */
.drawflow-host{position:absolute;inset:0;overflow:hidden;background:#0f1216;
  background-image:radial-gradient(circle, rgba(255,255,255,.055) 1px, transparent 1.2px);background-size:24px 24px}
.drawflow-host .parent-drawflow{background:transparent}
.drawflow .drawflow-node{background:var(--panel2);border:1px solid var(--line2);border-radius:12px;color:var(--txt);box-shadow:0 8px 22px rgba(0,0,0,.45);padding:0;min-width:170px;width:auto}
.drawflow .drawflow-node.selected{border-color:var(--acc);box-shadow:0 0 0 2px rgba(91,157,255,.4),0 8px 22px rgba(0,0,0,.45)}
.drawflow .drawflow-node .dfbox{padding:13px 16px;display:flex;align-items:center}
.drawflow .drawflow-node .dfl{background:transparent;border:none;color:var(--txt);font:inherit;font-size:14px;font-weight:600;width:150px;outline:none}
.drawflow .drawflow-node .dfl::placeholder{color:var(--mut2);font-weight:500}
.drawflow .drawflow-node .input,.drawflow .drawflow-node .output{width:15px;height:15px;background:var(--acc);border:3px solid #0f1216;cursor:crosshair;transition:transform .1s,background .1s}
.drawflow .drawflow-node .input:hover,.drawflow .drawflow-node .output:hover{background:#8bbcff;transform:scale(1.18)}
.drawflow .drawflow-node .input{left:-9px}
.drawflow .drawflow-node .output{right:-9px}
.drawflow svg.connection .main-path{stroke:var(--acc);stroke-width:2.5px;fill:none}
.drawflow svg.connection .main-path:hover{stroke:#8bbcff}
.drawflow svg.connection .point{stroke:var(--acc);fill:#0f1216;stroke-width:2}

.flowbar{position:absolute;left:12px;top:12px;z-index:5;display:flex;align-items:center;gap:7px;background:rgba(18,21,26,.95);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:11px;padding:7px 10px;box-shadow:0 8px 24px rgba(0,0,0,.4);flex-wrap:wrap;max-width:calc(100% - 24px)}
.flowbar .fbt{color:var(--mut2);font-size:12px;font-weight:700}
.flowbar .fsep{width:1px;height:20px;background:var(--line2);margin:0 2px}
.flowbar .fhint{color:var(--mut2);font-size:11.5px}
.flowempty{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);color:var(--mut);font-size:14px;text-align:center;max-width:360px;line-height:1.6;pointer-events:none;background:rgba(18,21,26,.5);padding:16px 20px;border-radius:12px;border:1px dashed var(--line2)}
.dfzoom{position:absolute;left:12px;bottom:12px;z-index:5;display:flex;gap:2px;background:rgba(18,21,26,.95);border:1px solid var(--line);border-radius:10px;padding:3px;box-shadow:0 6px 18px rgba(0,0,0,.4)}
.dfzoom button{border:none;background:transparent;color:var(--txt);width:30px;height:28px;border-radius:7px;font-size:14px}
.dfzoom button:hover{background:var(--panel2)}

/* menu popover (rename / delete) */
.pop{position:fixed;z-index:70;background:var(--panel2);border:1px solid var(--line2);border-radius:10px;padding:5px;box-shadow:0 14px 40px rgba(0,0,0,.55);min-width:168px}
.pop button{display:block;width:100%;text-align:left;border:none;background:transparent;color:var(--txt);padding:9px 12px;border-radius:7px;font-size:13.5px;font-weight:550}
.pop button:hover{background:var(--panel)}
.pop button.danger{color:var(--bad)}
.pop button.danger:hover{background:rgba(255,107,107,.12)}