:root{--pink:#db2777;--ink:#1e293b;--slate:#475569;--mut:#64748b;--line:#e2e8f0;
  --bg:#f8fafc;--card:#fff;--edge:#b45309;--cloud:#0369a1;--ok:#16a34a;--bad:#dc2626}
*{box-sizing:border-box}

.tcl{max-width:1160px;margin:0 auto;padding:1.6rem 1.4rem 4rem}
.tcl-intro h1{font-size:clamp(1.4rem,3vw,1.85rem);margin:.2rem 0 .35rem;color:var(--ink)}
.tcl-intro p{color:var(--slate);max-width:76ch;margin:0 0 1rem;font-size:.95rem}
.tcl-caveat{font-size:.82rem;color:var(--mut);background:#fff;border:1px dashed var(--line);border-radius:8px;
  padding:.6rem .8rem;max-width:82ch;margin:0 0 1.3rem}

.assume-strip{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.7rem 1rem;margin:0 0 1.1rem;
  display:flex;flex-wrap:wrap;gap:1.3rem;align-items:flex-end}
.assume-strip .h{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mut);width:100%;margin-bottom:-.2rem}
.assume{display:flex;flex-direction:column;gap:.2rem}
.assume label{font-size:.76rem;color:var(--slate)}
.assume .in{display:flex;align-items:center;gap:.25rem;font-weight:600}
.assume input{width:4.4rem;font:inherit;font-weight:600;padding:.28rem .4rem;border:1px solid #cbd5e1;border-radius:7px}
.assume .u{font-size:.74rem;color:var(--mut);font-weight:500}
.assume.target input{border-color:var(--pink)}

.builder{display:grid;grid-template-columns:280px 1fr;gap:1.1rem;align-items:start}
.dt-list{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.5rem}
.dt-list h4{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mut);margin:.4rem .6rem .15rem}
.dt-list .hint{font-size:.74rem;color:var(--mut);margin:0 .6rem .55rem}
.dt-item{display:flex;align-items:center;gap:.5rem;width:100%;text-align:left;border:none;background:none;font:inherit;
  border-radius:9px;padding:.55rem .6rem;cursor:pointer;margin-bottom:.15rem}
.dt-item:hover{background:#f8fafc}
.dt-item.active{background:#fdf2f8;outline:1px solid #fbcfe8}
.dt-item .nm{font-weight:600;font-size:.9rem;flex:1}
.dt-add{width:100%;margin-top:.35rem;border:1.5px dashed #cbd5e1;background:#fff;color:var(--slate);border-radius:9px;
  padding:.5rem;font-weight:600;cursor:pointer;font-size:.85rem}

.detail{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1.1rem 1.2rem}
.detail h2{font-size:1.25rem;margin:0 0 .1rem}
.detail .lead{font-size:.84rem;color:var(--mut);margin:0 0 1rem}
.step{border-top:1px solid var(--line);padding:.9rem 0 .2rem}
.step:first-of-type{border-top:none;padding-top:.2rem}
.step .lab{display:flex;align-items:center;gap:.5rem;margin-bottom:.55rem}
.step .num{width:1.4rem;height:1.4rem;border-radius:50%;background:var(--ink);color:#fff;font-size:.76rem;font-weight:700;display:grid;place-items:center}
.step .lab b{font-size:.95rem}.step .lab .hint{font-size:.76rem;color:var(--mut)}

.place-note{font-size:.82rem;color:var(--slate);margin:0 0 .6rem;max-width:74ch}
.place-note b{color:var(--ink)}
.place{display:flex;flex-wrap:wrap;gap:1.3rem}
.place .pl{display:flex;flex-direction:column;gap:.3rem}
.place .pl .t{font-size:.78rem;color:var(--slate)}
.seg{display:inline-flex;border:1px solid #cbd5e1;border-radius:8px;overflow:hidden}
.seg button{border:none;background:#fff;font:inherit;font-size:.8rem;font-weight:600;padding:.32rem .7rem;cursor:pointer;color:var(--slate)}
.seg button.on.edge{background:var(--edge);color:#fff}
.seg button.on.cloud{background:var(--cloud);color:#fff}

.conn{display:flex;flex-wrap:wrap;gap:.6rem}
.conn .opt{border:1.5px solid var(--line);border-radius:10px;padding:.5rem .7rem;cursor:pointer;min-width:8.5rem;background:#fff}
.conn .opt.sel{border-color:var(--pink);background:#fdf2f8}
.conn .opt .nm{font-weight:700;font-size:.88rem;margin-bottom:.3rem}
.conn .opt .meta{font-size:.74rem;color:var(--mut);display:flex;align-items:center;gap:.25rem;flex-wrap:wrap}
.rin{width:3.3rem;font:inherit;font-size:.76rem;font-weight:600;padding:.12rem .3rem;border:1px solid #cbd5e1;border-radius:5px;color:var(--ink)}

.data-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem 1rem}
.q{display:flex;flex-direction:column;gap:.25rem}
.q label{font-size:.78rem;color:var(--slate)}
.q input{font:inherit;padding:.4rem .5rem;border:1px solid #cbd5e1;border-radius:7px}
.q .hint{font-size:.71rem;color:var(--mut)}

.gate{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap;padding:.75rem .85rem;border-radius:9px;margin-top:1.1rem}
.gate.pending{background:#fff7ed;border:1px solid #fed7aa}
.gate.done{background:#f0fdf4;border:1px solid #bbf7d0}
.gate .gmsg{font-size:.84rem;color:var(--slate);flex:1}
.btn{background:var(--pink);color:#fff;border:none;border-radius:8px;padding:.5rem 1.05rem;font-weight:700;cursor:pointer;font-size:.88rem}

.result{margin-top:1rem;border-top:2px solid var(--ink);padding-top:.9rem}
.res-head{display:flex;align-items:center;gap:.6rem;margin:0 0 .7rem;flex-wrap:wrap}
.res-head h3{font-size:.95rem;margin:0}
.verdict{font-size:.8rem;font-weight:700;border-radius:6px;padding:.24rem .65rem;white-space:nowrap}
.verdict.ok{color:#fff;background:var(--ok)}
.verdict.bad{color:#fff;background:var(--bad)}
.res-grid{display:flex;flex-wrap:wrap;gap:1.3rem}
.res{display:flex;flex-direction:column;padding:.3rem .6rem;border-radius:8px;min-width:8rem}
.res .k{font-size:.71rem;color:var(--mut)}
.res .v{font-size:1.1rem;font-weight:700;font-variant-numeric:tabular-nums}
.res .chk{font-size:.72rem;font-weight:700}
.res.pass{background:#f0fdf4}.res.pass .chk{color:var(--ok)}
.res.fail{background:#fef2f2}.res.fail .v{color:var(--bad)}.res.fail .chk{color:var(--bad)}
.discuss{background:#fafafa;border:1px solid var(--line);border-left:3px solid var(--pink);border-radius:10px;padding:.85rem 1rem;margin:1rem 0 0}
.discuss h4{font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mut);margin:0 0 .4rem}
.discuss p{color:var(--slate);font-size:.9rem;margin:0}.discuss b{color:var(--ink)}
.exp{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.tb-btn{font-size:.8rem;font-weight:600;border-radius:8px;padding:.42rem .7rem;cursor:pointer;border:1px solid var(--line);background:#f8fafc;color:var(--ink)}
.tb-btn.primary{background:var(--pink);color:#fff;border-color:var(--pink)}

.fleet{margin-top:2rem;border-top:2px solid var(--ink);padding-top:1rem}

.formulas{font-size:.78rem;color:var(--mut);margin-top:1.6rem;border-top:1px solid var(--line);padding-top:1rem}
.formulas code{background:#f1f5f9;padding:.05rem .35rem;border-radius:4px;color:#334155}
.formulas .row{margin:.2rem 0}

@media(max-width:860px){.builder{grid-template-columns:1fr}.data-grid{grid-template-columns:1fr}}

@media print {
    nav.navbar, .tool-breadcrumbs, .assume-strip, .dt-list, .gate, .formulas { display: none !important; }
    .tcl { padding: 0; }
}