:root{
  --bg:#eef2f7; --card:#ffffff; --ink:#1e293b; --muted:#64748b; --line:#e2e8f0;
  --brand:#1d4ed8; --brand-2:#2563eb; --brand-soft:#eff6ff; --ok:#059669; --ok-soft:#ecfdf5;
  --warn:#d97706; --warn-soft:#fffbeb; --danger:#dc2626; --danger-soft:#fef2f2;
  --shadow:0 1px 3px rgba(15,23,42,.08),0 4px 16px rgba(15,23,42,.06);
  --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Noto Sans KR","Hiragino Sans",sans-serif;
  background:var(--bg); color:var(--ink); font-size:15px; line-height:1.55; min-height:100vh;
}
a{color:var(--brand)}
.hidden{display:none!important}

/* ---------- Header ---------- */
header{
  position:sticky; top:0; z-index:50; background:rgba(255,255,255,.92); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line); box-shadow:0 1px 4px rgba(15,23,42,.05);
}
.header-in{max-width:1100px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;min-width:0}
.brand svg{flex:none}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:12px;color:var(--muted);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.lang-box{position:relative}
.lang-box select{
  appearance:none; -webkit-appearance:none; padding:8px 30px 8px 12px; border:1px solid var(--line);
  border-radius:8px; background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2364748b' stroke-width='1.5' fill='none'/%3E%3C/svg%3E") no-repeat right 10px center;
  font-size:13.5px; color:var(--ink); cursor:pointer; outline:none;
}
.lang-box select:focus{border-color:var(--brand-2)}
.btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:8px;font-size:13.5px;font-weight:600;
  text-decoration:none;border:1px solid var(--line);background:#fff;color:var(--ink);transition:.15s;cursor:pointer;white-space:nowrap;
}
.btn:hover{border-color:var(--brand-2);color:var(--brand);background:var(--brand-soft)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-2);color:#fff}

/* ---------- Layout ---------- */
.wrap{max-width:1100px;margin:0 auto;padding:24px 20px 60px}
.tabs{display:flex;gap:8px;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:8px;box-shadow:var(--shadow);margin-bottom:20px}
.tab-btn{
  flex:1 1 auto; min-width:150px; padding:11px 14px; border:none; border-radius:9px; background:transparent;
  font-size:14.5px; font-weight:600; color:var(--muted); cursor:pointer; transition:.15s; display:flex; align-items:center; justify-content:center; gap:8px;
}
.tab-btn:hover{background:#f1f5f9;color:var(--ink)}
.tab-btn.active{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(29,78,216,.35)}
.tab-btn svg{flex:none}

.module{display:none}
.module.active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:18px}
.card h2{font-size:16px;font-weight:700;margin-bottom:4px;display:flex;align-items:center;gap:8px}
.card h2 .ico{color:var(--brand)}
.card .sub{color:var(--muted);font-size:13px;margin-bottom:14px}

/* ---------- Modes ---------- */
.mode-bar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px;background:#f1f5f9;border-radius:10px;padding:5px}
.mode-btn{border:none;background:transparent;padding:8px 14px;border-radius:8px;font-size:13.5px;font-weight:600;color:var(--muted);cursor:pointer;transition:.15s}
.mode-btn:hover{color:var(--ink)}
.mode-btn.active{background:#fff;color:var(--brand);box-shadow:0 1px 4px rgba(15,23,42,.12)}

/* ---------- Forms ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin-bottom:5px}
.input-wrap{display:flex;align-items:stretch;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden;transition:.15s}
.input-wrap:focus-within{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.input-wrap input{
  flex:1;min-width:0;border:none;outline:none;padding:9px 11px;font-size:14.5px;color:var(--ink);background:transparent;font-family:inherit;
}
.input-wrap textarea{
  flex:1;min-width:0;border:none;outline:none;padding:9px 11px;font-size:13.5px;color:var(--ink);background:transparent;font-family:inherit;
  resize:vertical;line-height:1.5;min-height:64px;
}
.input-wrap select{
  border:none;outline:none;background:#f8fafc;padding:0 8px;font-size:12.5px;color:var(--muted);cursor:pointer;border-left:1px solid var(--line);max-width:92px;
}
.input-wrap .u-fixed{flex:none;display:flex;align-items:center;padding:0 10px;font-size:12.5px;color:var(--muted);background:#f8fafc;border-left:1px solid var(--line)}
.field .hint{font-size:11.5px;color:#94a3b8;margin-top:3px}
/* validation guardrails */
.field.invalid .input-wrap{border-color:var(--warn);box-shadow:0 0 0 3px rgba(217,119,6,.14)}
.field .fld-warn{font-size:11.5px;color:var(--warn);margin-top:4px;font-weight:600;line-height:1.35}
.valbar{display:flex;align-items:center;gap:8px;background:var(--warn-soft);border:1px solid #fde68a;color:var(--warn);border-radius:8px;padding:8px 12px;font-size:12.5px;margin-top:8px;font-weight:650}
.valbar svg{flex:none}
/* history modal */
.hist-item{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:10px;background:#fff}
.hist-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.hist-tag{font-size:11.5px;font-weight:750;background:var(--brand-soft);color:var(--brand);padding:2px 9px;border-radius:999px}
.hist-time{font-size:11.5px;color:#94a3b8}
.hist-rows{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:4px 12px;font-size:12px;margin-bottom:10px}
.hist-rows div{display:flex;justify-content:space-between;gap:8px;color:var(--muted)}
.hist-rows b{color:var(--ink);font-weight:650;white-space:nowrap}
.hist-actions{display:flex;gap:8px}
.hist-empty{color:#94a3b8;text-align:center;padding:24px 0;font-size:13px}
.actions{display:flex;gap:10px;margin-top:18px}
.btn-calc{background:var(--brand);border:1px solid var(--brand);color:#fff;padding:10px 28px;font-size:14.5px}
.btn-calc:hover{background:var(--brand-2);border-color:var(--brand-2);color:#fff}
.btn-reset{border:1px solid var(--line);background:#fff;color:var(--muted);padding:10px 20px}
.btn-reset:hover{border-color:#94a3b8;color:var(--ink);background:#f8fafc}

/* ---------- Results ---------- */
.err{background:var(--danger-soft);border:1px solid #fecaca;color:var(--danger);border-radius:8px;padding:10px 14px;font-size:13.5px;margin-top:14px;font-weight:600}
.results{margin-top:18px}
.results-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin-bottom:10px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:12px}
.stat{background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px 14px;transition:.15s}
.stat .sname{font-size:12px;color:var(--muted);font-weight:600;margin-bottom:5px}
.stat .sval{font-size:21px;font-weight:750;letter-spacing:.3px;font-variant-numeric:tabular-nums;word-break:break-word}
.stat .sun{font-size:12.5px;font-weight:600;color:var(--muted);margin-left:4px}
.stat .ssub{font-size:11.5px;color:#94a3b8;margin-top:5px;word-break:break-word}
.stat.ok .sval{color:var(--ok)}
.stat.warn .sval{color:var(--danger)}
.stat.pill .sval{display:inline-block;padding:3px 12px;border-radius:999px;font-size:14px;background:var(--brand-soft);color:var(--brand);border:1px solid #bfdbfe}
.stat.pill.warn .sval{background:var(--warn-soft);color:var(--warn);border-color:#fde68a}
.stat-raw{grid-column:1/-1;padding:12px 14px}
.mot-tbl-wrap{overflow-x:auto;margin-top:2px}
.mot-tbl{width:100%;border-collapse:collapse;font-size:12.5px;font-variant-numeric:tabular-nums}
.mot-tbl th{background:#eef2f7;color:var(--muted);font-weight:700;text-align:right;padding:6px 10px;border:1px solid #e2e8f0;white-space:nowrap}
.mot-tbl td{padding:6px 10px;border:1px solid #e2e8f0;text-align:right;color:var(--ink);white-space:nowrap}
.mot-tbl tr:nth-child(even) td{background:#f8fafc}
.mot-tbl td:first-child,.mot-tbl th:first-child{text-align:left}
.mot-tbl tr:last-child td{background:#f0fdf4;font-weight:750;color:#065f46}

/* ---------- Formula / notes ---------- */
details.formula{margin-top:16px;border:1px dashed #cbd5e1;border-radius:10px;padding:0 14px}
details.formula summary{cursor:pointer;font-size:13px;font-weight:700;color:var(--muted);padding:10px 0;list-style:none;display:flex;align-items:center;gap:6px}
details.formula summary::-webkit-details-marker{display:none}
details.formula summary::before{content:"▸";transition:.15s;color:var(--brand)}
details.formula[open] summary::before{transform:rotate(90deg)}
.formula-body{padding:4px 0 14px;font-size:13.5px;color:var(--ink);background:#fbfcfe;border-radius:8px;padding:12px;font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;white-space:pre-wrap;line-height:1.7}
.notes{margin-top:14px;background:var(--ok-soft);border:1px solid #a7f3d0;border-radius:10px;padding:12px 16px;font-size:13px;color:#065f46}
.notes-title{font-weight:700;margin-bottom:6px;font-size:13px;display:flex;align-items:center;gap:6px}
.notes ul{margin-left:18px}
.notes li{margin:3px 0}
.enr-tips{font-size:13px;color:var(--text)}
.enr-tips-title{font-weight:700;color:#065f46;margin-bottom:7px;font-size:13px}
.enr-tips ul{margin-left:18px}
.enr-tips li{margin:4px 0;line-height:1.5}
.enr-tips b{font-weight:700}
.sim-wrap{width:100%}
.sim-ctrl{display:flex;gap:8px;align-items:center;margin-bottom:8px;flex-wrap:wrap}
.sim-ctrl .mini{padding:5px 14px;font-size:12.5px}

footer{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:12.5px;text-align:center}
.noscript{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:10px;border-radius:8px;margin-bottom:14px;font-size:13.5px}

@media (max-width:640px){
  .header-in{padding:10px 14px}
  .brand-name{font-size:15px}
  .tab-btn{min-width:120px;padding:9px 10px;font-size:13px}
  .card{padding:16px}
  .grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .actions{flex-wrap:wrap}
}
@page{size:A4;margin:12mm}
@media print{
  header,.tabs,.actions,details.formula,footer,.err{display:none!important}
  body{background:#fff}
  .card{box-shadow:none;border:1px solid #ddd}
  .module:not(.active){display:none!important}
  .module .mode-bar,.module form,.module .print-hint{display:none!important}
  .module .results{margin:0}
  .module.printing{display:block!important}
  .stat,.stat-grid>*,.sen-tbl tr{break-inside:avoid;page-break-inside:avoid}
}
.print-hint{display:none}
@media print{
  .print-hint{display:block;font-size:12px;color:#666;margin-bottom:10px}
}

/* ================= tools bar ================= */
.toolsbar{background:#f8fafc;border-bottom:1px solid #e2e8f0;padding:8px 16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:13px}
.tools-group{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.tools-label{font-weight:600;color:#334155;margin-right:2px}
.toolsbar select,.toolsbar input{height:32px;border:1px solid #cbd5e1;border-radius:6px;padding:0 8px;font-size:13px;background:#fff;color:#0f172a;outline:none}
.toolsbar input{width:130px}
.toolsbar .mini{padding:6px 10px;font-size:12px;border:1px solid #cbd5e1;border-radius:6px;background:#fff;color:#0f172a;cursor:pointer}
.toolsbar .mini:hover{background:#eef2ff;border-color:#818cf8}
#schStatus{color:#16a34a;font-size:12px;min-height:16px}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:200;display:none;align-items:flex-start;justify-content:center;padding:40px 16px;overflow:auto}
.modal.show{display:flex}
.modal-card{background:#fff;border-radius:12px;max-width:900px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid #e2e8f0}
.modal-head h3{margin:0;font-size:15px;color:#0f172a}
.btn-close{border:none;background:transparent;font-size:20px;line-height:1;cursor:pointer;color:#64748b;padding:4px 8px}
.btn-close:hover{color:#0f172a}
.modal-body{padding:18px;overflow:auto}
.audit-card{border:1px solid #e2e8f0;border-radius:10px;padding:14px 16px;margin-bottom:12px;background:#fbfcfe}
.audit-name{font-weight:600;font-size:13px;color:#0f172a;margin-bottom:6px}
.audit-form{font-family:"Cambria Math",Cambria,Georgia,serif;font-size:13.5px;color:#1e40af;background:#f1f5f9;border:1px dashed #c7d2fe;border-radius:6px;padding:8px 10px;margin-bottom:8px;white-space:pre-wrap;line-height:1.5}
.audit-tbl{width:100%;border-collapse:collapse;font-size:12.5px;margin-bottom:6px}
.audit-tbl th,.audit-tbl td{border:1px solid #e2e8f0;padding:5px 8px;text-align:left}
.audit-tbl th{background:#f1f5f9;color:#334155;font-weight:600}
.audit-sym{font-family:"Cambria Math",Cambria,Georgia,serif;font-weight:600;color:#075985;white-space:nowrap}
.audit-val{font-weight:600;color:#0f172a;text-align:right;white-space:nowrap}
.audit-out{margin-top:6px;font-size:13px;color:#0f172a}
.audit-out b{color:#1d4ed8}
.audit-note{color:#64748b;font-size:12.5px;padding:4px 0}
.audit-live{color:#15803d;font-weight:600;font-size:11px;padding:2px 0 6px}
.cmp-tbl{width:100%;border-collapse:collapse;font-size:12.5px}
.cmp-tbl th,.cmp-tbl td{border:1px solid #e2e8f0;padding:6px 9px;text-align:left;white-space:nowrap}
.cmp-tbl th{background:#f1f5f9;color:#334155;font-weight:600}
.cmp-tbl td.diff{background:#fef3c7;font-weight:600}
.cmp-tbl tr.cmp-head th{background:#e0e7ff}
.chip{display:inline-block;padding:1px 8px;border-radius:999px;font-size:11px;margin-left:6px;vertical-align:middle}
.chip.metric{background:#dbeafe;color:#1d4ed8}
.chip.imperial{background:#fde68a;color:#92400e}
.tools-gap{min-width:8px}

/* report sheet (printed only) */
#reportSheet{display:none}
@media print{
  body.reporting .toolsbar,body.reporting header,body.reporting .tabs,body.reporting .wrap,body.reporting footer{display:none!important}
  body.reporting #reportSheet{display:block!important}
  #reportSheet{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  #reportSheet tr,#reportSheet .r-chart{page-break-inside:avoid;break-inside:avoid}
  #reportSheet h2,#reportSheet h3{page-break-after:avoid;break-after:avoid}
  #reportSheet .r-chart svg{max-height:150mm}
}
#reportSheet{font-size:12.5px;color:#0f172a}
#reportSheet h2{margin:0 0 2px;font-size:18px}
#reportSheet h3{margin:18px 0 8px;font-size:14px;color:#1e40af;border-bottom:2px solid #1d4ed8;padding-bottom:4px}
#reportSheet .r-sub{color:#64748b;margin-bottom:8px;font-size:12px}
#reportSheet table{width:100%;border-collapse:collapse;font-size:12.5px}
#reportSheet th,#reportSheet td{border:1px solid #cbd5e1;padding:5px 8px;text-align:left}
#reportSheet th{background:#f1f5f9}
#reportSheet .r-note{color:#64748b;font-size:11.5px;margin-top:4px}
#reportSheet .report-break{page-break-before:always;break-before:page;height:0}
#reportSheet .r-chart{max-width:640px;margin:10px auto}
#reportSheet .r-chart svg{width:100%;height:auto;border:1px solid var(--line);border-radius:8px}
/* ================= sensitivity scan ================= */
.sen-tbl-wrap{overflow-x:auto;margin-top:10px}
.sen-tbl{border-collapse:collapse;width:100%;font-size:13px;background:#fff}
.sen-tbl th,.sen-tbl td{border:1px solid #e2e8f0;padding:6px 10px;text-align:right;white-space:nowrap}
.sen-tbl th{background:#f8fafc;color:#334155;font-weight:600;text-align:center}
.sen-tbl td:first-child{font-weight:600;color:#1e293b;text-align:center}
.sen-tbl tr.sen-ok td{background:#ecfdf5}
.sen-tbl tr.sen-ok td:first-child{color:#047857}
.sen-legend{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:6px 0 2px;font-size:11.5px;color:#334155}
.sen-legend span{display:inline-flex;align-items:center;gap:5px}
.sen-legend i{width:10px;height:10px;border-radius:2px;display:inline-block}
.sen-dual-title{text-align:center;font-size:12px;font-weight:600;color:#334155;margin:2px 0 0}
.chart-tools{display:flex;gap:6px;justify-content:center;margin:6px 0 2px}
/* ================= new modules (network / lcc / nlu / circuit) ================= */
.sec-title{font-weight:700;font-size:13px;color:#1e40af;margin:14px 0 8px;padding-bottom:5px;border-bottom:2px solid #bfdbfe;text-transform:uppercase;letter-spacing:.4px}
.rev-head{font-weight:600;font-size:12.5px;color:#334155;margin:14px 0 6px}
.rev-list{display:flex;flex-direction:column;gap:6px}
.re{display:grid;grid-template-columns:26px repeat(5,minmax(70px,1fr));gap:8px;align-items:center;background:#f8fafc;border:1px solid #eef2f7;border-radius:8px;padding:6px 8px}
.re b{color:#1d4ed8;font-size:12px}
.batch-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:8px}
.batch-ok{color:var(--ok);font-weight:650;font-size:12px}
.dropzone.drag{border-color:var(--ok);background:rgba(22,163,74,.07)}
[data-theme="dark"] .dropzone.drag{background:rgba(22,163,74,.14)}
.un{color:#94a3b8;font-size:10.5px;margin-left:2px;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 2px}
.chips .chip-act{background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8;font-size:12px;padding:4px 10px;border-radius:999px;cursor:pointer}
.chips .chip-act:hover{background:#dbeafe}
.circ-svg{width:100%;max-width:840px;display:block;margin:8px auto;background:#fff;border:1px solid #e2e8f0;border-radius:8px}
.net-wrap{overflow-x:auto;margin-top:8px}
.net-tbl{border-collapse:collapse;width:100%;font-size:13px;background:#fff}
.net-tbl th,.net-tbl td{border:1px solid #e2e8f0;padding:6px 10px;text-align:right;white-space:nowrap}
.net-tbl th{background:#f8fafc;color:#334155;font-weight:600;text-align:center}
.net-tbl td:first-child{font-weight:600;color:#1e293b;text-align:center}
.net-tbl tr.net-ok td{background:#ecfdf5}
.net-tbl tr.net-bad td{background:#fef2f2}
.fit-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:8px;margin-bottom:4px}
.fit{display:flex;align-items:center;justify-content:space-between;gap:8px;background:#f8fafc;border:1px solid #eef2f7;border-radius:8px;padding:5px 8px}
.fit>span{font-size:12.5px;color:#334155;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fit .input-wrap{flex:none;width:70px}
.fit .input-wrap input{text-align:right;padding:5px 6px}
.kb-entry{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:10px;background:#fbfcfe}
.kb-entry h4{font-size:13.5px;margin-bottom:4px;color:#1e40af}
.kb-entry p{font-size:13px;color:var(--ink)}
.kb-cat{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:16px 0 8px}
.nlu-params{display:flex;flex-wrap:wrap;gap:8px}
.nlu-params span{background:#f1f5f9;border:1px solid var(--line);border-radius:8px;padding:5px 10px;font-size:12.5px;color:var(--muted)}
.nlu-params b{color:#1d4ed8}
@media(max-width:640px){ .re{grid-template-columns:22px 1fr 1fr} }

/* ================= dark mode ================= */
[data-theme="dark"]{
  --bg:#0f172a; --card:#1e293b; --card2:#273244; --ink:#e2e8f0; --muted:#94a3b8; --line:#334155;
  --brand:#60a5fa; --brand-2:#3b82f6; --brand-soft:#1e3a5f;
  --ok:#34d399; --ok-soft:#0b3d2e; --warn:#fbbf24; --warn-soft:#3d2e0b;
  --danger:#f87171; --danger-soft:#3d1010;
  --shadow:0 1px 3px rgba(0,0,0,.5),0 4px 16px rgba(0,0,0,.4);
}
[data-theme="dark"] body{color:var(--ink)}
[data-theme="dark"] .field input,[data-theme="dark"] select{background:#0f172a;color:#e2e8f0;border-color:var(--line)}
[data-theme="dark"] .input-wrap textarea{color:#e2e8f0}
[data-theme="dark"] .mode-bar{background:#0f172a}
[data-theme="dark"] .mode-btn{color:#cbd5e1}
[data-theme="dark"] .mode-btn.active{background:#1d4ed8;color:#fff}
[data-theme="dark"] .sen-tbl,[data-theme="dark"] .net-tbl{background:#0f172a}
[data-theme="dark"] .sen-tbl th,[data-theme="dark"] .net-tbl th{background:#1e293b;color:#cbd5e1}
[data-theme="dark"] .sen-tbl td,[data-theme="dark"] .net-tbl td{border-color:#334155;color:#e2e8f0}
[data-theme="dark"] .sen-tbl tr.sen-ok td{background:#0b3d2e}
[data-theme="dark"] .audit-card{background:#0f172a}
[data-theme="dark"] .audit-form{background:#1e293b;color:#93c5fd;border-color:#334155}
[data-theme="dark"] .audit-tbl th{background:#1e293b;color:#cbd5e1}
[data-theme="dark"] .re{background:#0f172a;border-color:#334155}
[data-theme="dark"] .rev-head{color:#cbd5e1}
[data-theme="dark"] .sec-title{color:#93c5fd;border-color:#1e40af}
[data-theme="dark"] .circ-svg{border-color:#334155}
[data-theme="dark"] .chips .chip-act{background:#1e3a5f;border-color:#1e40af;color:#93c5fd}
[data-theme="dark"] .cmp-tbl td,.cmp-tbl th,[data-theme="dark"] .cmp-tbl td,[data-theme="dark"] .cmp-tbl th{background:#0f172a;border-color:#334155;color:#e2e8f0}
[data-theme="dark"] .cmp-tbl tr.cmp-head th{background:#1e293b}
[data-theme="dark"] .results-title{color:#cbd5e1}
[data-theme="dark"] .card{background:var(--card)}
[data-theme="dark"] .noscript{color:#f87171}
[data-theme="dark"] header{background:rgba(15,23,42,.92);border-color:var(--line)}
[data-theme="dark"] .toolsbar{background:#1e293b;border-color:var(--line)}
[data-theme="dark"] .tools-label{color:#cbd5e1}
[data-theme="dark"] .toolsbar select,[data-theme="dark"] .toolsbar input,[data-theme="dark"] .toolsbar .mini{background:#0f172a;color:#e2e8f0;border-color:#475569}
[data-theme="dark"] .toolsbar .mini:hover{background:#1e3a5f;border-color:#3b82f6}
[data-theme="dark"] .btn,[data-theme="dark"] .btn-reset,[data-theme="dark"] .input-wrap,[data-theme="dark"] .lang-box select{background:#0f172a;color:#e2e8f0;border-color:var(--line)}
[data-theme="dark"] .input-wrap select,[data-theme="dark"] .input-wrap .u-fixed{background:#1e293b;color:#94a3b8;border-color:var(--line)}
[data-theme="dark"] .tab-btn:hover{background:#1e293b;color:#e2e8f0}
[data-theme="dark"] .stat{background:#0f172a;border-color:var(--line)}
[data-theme="dark"] .stat.pill .sval{background:#1e3a5f;border-color:#1e40af}
[data-theme="dark"] .notes{background:#0b3d2e;border-color:#14532d;color:#a7f3d0}
[data-theme="dark"] .modal-card{background:#1e293b}
[data-theme="dark"] .modal-head{border-color:var(--line)}
[data-theme="dark"] .modal-head h3{color:#e2e8f0}
[data-theme="dark"] .btn-close{color:#94a3b8}
[data-theme="dark"] .hist-item{background:#0f172a}
[data-theme="dark"] .formula-body{background:#0f172a;color:#e2e8f0}
[data-theme="dark"] details.formula{border-color:#475569}
[data-theme="dark"] .mot-tbl th{background:#1e293b;color:#cbd5e1}
[data-theme="dark"] .mot-tbl td{border-color:#334155}
[data-theme="dark"] .mot-tbl tr:nth-child(even) td{background:#0f172a}
[data-theme="dark"] .kb-entry{background:#0f172a}
[data-theme="dark"] .kb-entry h4{color:#93c5fd}
[data-theme="dark"] .nlu-params span{background:#0f172a}
[data-theme="dark"] .nlu-params b{color:#93c5fd}
[data-theme="dark"] .net-tbl tr.net-ok td{background:#0b3d2e}
[data-theme="dark"] .net-tbl tr.net-bad td{background:#3d1010}
[data-theme="dark"] .fit{background:#0f172a;border-color:#334155}
[data-theme="dark"] .fit>span{color:#cbd5e1}
[data-theme="dark"] .err{border-color:#7f1d1d}
[data-theme="dark"] .valbar{border-color:#78350f}
[data-theme="dark"] .sen-chart{background:#0f172a}
[data-theme="dark"] .sen-legend{color:#cbd5e1}
[data-theme="dark"] .sen-dual-title{color:#cbd5e1}
/* dark-mode charts & schematics: darken panels, remap light-theme ink (exports unaffected) */
[data-theme="dark"] svg.pds-chart,[data-theme="dark"] .sen-chart svg,[data-theme="dark"] svg.circ-svg{background:#0f172a!important;border-color:#334155!important}
[data-theme="dark"] svg.pds-chart [stroke="#eef2f7"],[data-theme="dark"] svg.pds-chart [stroke="#f1f5f9"],[data-theme="dark"] svg.pds-chart [stroke="#f4f7fb"],[data-theme="dark"] .sen-chart svg [stroke="#eef2f7"],[data-theme="dark"] .sen-chart svg [stroke="#f1f5f9"],[data-theme="dark"] .sen-chart svg [stroke="#f4f7fb"]{stroke:#293548}
[data-theme="dark"] svg.pds-chart [stroke="#cbd5e1"],[data-theme="dark"] svg.pds-chart [stroke="#e2e8f0"],[data-theme="dark"] .sen-chart svg [stroke="#cbd5e1"],[data-theme="dark"] .sen-chart svg [stroke="#e2e8f0"]{stroke:#475569}
[data-theme="dark"] svg.pds-chart [stroke="#0f172a"]{stroke:#e2e8f0}
[data-theme="dark"] svg.pds-chart [fill="#42526b"],[data-theme="dark"] svg.pds-chart [fill="#475569"],[data-theme="dark"] svg.pds-chart [fill="#0f172a"],[data-theme="dark"] .sen-chart svg [fill="#42526b"],[data-theme="dark"] .sen-chart svg [fill="#475569"]{fill:#e2e8f0}
[data-theme="dark"] svg.pds-chart [fill="#64748b"],[data-theme="dark"] svg.pds-chart [fill="#8b93a4"],[data-theme="dark"] svg.pds-chart [fill="#7a8aa5"],[data-theme="dark"] .sen-chart svg [fill="#64748b"],[data-theme="dark"] .sen-chart svg [fill="#8b93a4"],[data-theme="dark"] .sen-chart svg [fill="#7a8aa5"]{fill:#94a3b8}
[data-theme="dark"] svg.pds-chart [fill="#f8fafc"]{fill:#1e293b}
[data-theme="dark"] svg.pds-chart [stroke="#1d4ed8"],[data-theme="dark"] .sen-chart svg [stroke="#1d4ed8"]{stroke:#60a5fa}
[data-theme="dark"] .sen-legend i[style*="#1d4ed8"]{background:#60a5fa!important}
[data-theme="dark"] svg.circ-svg [stroke="#334155"]{stroke:#cbd5e1}
[data-theme="dark"] svg.circ-svg [fill="#334155"]{fill:#cbd5e1}
[data-theme="dark"] svg.circ-svg [fill="#fff"]{fill:#334155}
[data-theme="dark"] svg.circ-svg [fill="#dbeafe"]{fill:#2563eb}
/* ================= sensitivity: advanced analysis ================= */
.adv-panel{margin-top:14px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fbfcfe}
.adv-head{font-weight:700;font-size:12.5px;color:#1e40af;margin-bottom:8px}
.adv-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.adv-lab{font-size:12.5px;color:#334155;font-weight:600}
.adv-sel{min-width:190px;max-width:270px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:13px;color:var(--ink)}
.adv-delta{width:76px}
.adv-empty{font-size:12.5px;color:var(--muted);padding:8px 2px}
.adv-tip{font-size:11.5px;color:var(--muted);margin-top:6px;line-height:1.55}
.adv-cap{font-size:11.5px;color:#475569;margin:4px 0 0;font-family:ui-monospace,Consolas,monospace}
[data-theme="dark"] .adv-cap{color:#94a3b8}
.adv-num{width:96px}
.adv-num2{width:170px}
#sen-adv-out{margin-top:10px}
#lccAdv-out{margin-top:10px}
.adv-lgd{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px;font-size:11.5px;color:var(--muted)}
.adv-lgd i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}
.adv-sub{font-size:12px;color:#334155;font-weight:600;margin:10px 0 4px}
[data-theme="dark"] .adv-panel{background:#0f172a}
[data-theme="dark"] .adv-head{color:#93c5fd}
[data-theme="dark"] .adv-lab{color:#cbd5e1}
[data-theme="dark"] .adv-sub{color:#cbd5e1}
[data-theme="dark"] .adv-sel{background:#0f172a;color:#e2e8f0;border-color:#334155}
@media print{ .chart-tools{display:none!important} }
/* ================= advanced: formula derivation / pressure distribution / efficiency ================= */
.fx-sec{margin:12px 0 4px}
.fx-sec:first-child{margin-top:4px}
.fx-h{font-size:13px;font-weight:700;color:#1e40af;margin:10px 0 4px}
.fx-p{font-size:13px;line-height:1.75;color:var(--ink)}
.fx-p b{color:#0f766e}
.fx-b{font-size:12.5px;line-height:1.7;color:#475569;margin-top:4px}
.fx-m{font-size:13.5px;font-weight:700;color:#0f766e;background:#ecfeff;border:1px solid #a5f3fc;border-radius:8px;padding:7px 10px;margin:6px 0;font-family:ui-monospace,Consolas,monospace;overflow-x:auto}
[data-theme="dark"] .fx-h{color:#93c5fd}
[data-theme="dark"] .fx-b{color:#94a3b8}
[data-theme="dark"] .fx-m{background:#0b3d2e;border-color:#14532d;color:#5eead4}
.dist-card{margin-top:10px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff}
[data-theme="dark"] .dist-card{background:#0f172a}
.hist-svg{display:block;width:100%;max-width:680px;margin:6px auto;background:#fff;border:1px solid #e2e8f0;border-radius:8px}
[data-theme="dark"] .hist-svg{background:#0f172a;border-color:#334155}
.net-tbl td.eff-best{color:#0f766e;font-weight:700;background:#ecfdf5}
[data-theme="dark"] .net-tbl td.eff-best{color:#5eead4;background:#0b3d2e}
.net-tbl td.rec-guide{font-size:11.5px;color:#475569;line-height:1.45;max-width:290px}
[data-theme="dark"] .net-tbl td.rec-guide{color:#94a3b8}
.net-tbl td.rec-scaled{color:#b45309;font-style:italic}
[data-theme="dark"] .net-tbl td.rec-scaled{color:#fbbf24}
.fx-steps-h{font-size:12px;font-weight:700;color:#475569;margin:8px 0 2px}
.fx-steps ol{margin:0;padding-left:22px;font-size:12.5px;line-height:1.8;color:#334155}
.fx-steps li{margin:2px 0}
.fx-steps b{color:#0f766e}
[data-theme="dark"] .fx-steps-h{color:#94a3b8}
[data-theme="dark"] .fx-steps ol{color:#cbd5e1}
.fx-var td:first-child{font-family:ui-monospace,Consolas,monospace;font-weight:700;color:#1e40af;white-space:nowrap}
.fx-var td:last-child{color:#64748b;white-space:nowrap}
[data-theme="dark"] .fx-var td:first-child{color:#93c5fd}
[data-theme="dark"] .fx-var td:last-child{color:#94a3b8}