:root{
  --navy:#0B2A43; --navy2:#123B5C; --ice:#F3F8FC; --teal:#0E7C86; --sea:#17B0A3;
  --amber:#F5A623; --ink:#12344B; --mute:#6E8498; --line:#D8E4EE; --card:#fff;
}
*{box-sizing:border-box}
body{margin:0;background:var(--ice);color:var(--ink);
  font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
h1,h2{font-family:Georgia,"Times New Roman",serif}

/* hero */
.hero{background:var(--navy);color:#fff;padding:26px 0;border-bottom:4px solid var(--amber)}
.hero-row{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;flex-wrap:wrap}
.hero h1{margin:0;font-size:34px;letter-spacing:.3px}
.tagline{margin:4px 0 0;color:var(--sea);font-size:17px}
.chips{display:flex;flex-direction:column;gap:6px;align-items:flex-end}
.chip{font-size:12px;background:var(--navy2);color:#CFE0EC;padding:5px 11px;border-radius:999px}
.chip.badge{background:rgba(245,166,35,.15);color:var(--amber);font-weight:700}

.lede{font-size:16.5px;color:#33505F;margin:22px 0 18px;max-width:860px}
.lede strong{color:var(--ink)}

.why{margin:18px 0 10px}
.why h2{font-size:21px;margin:0 0 10px}
.value-diagram{width:100%;max-width:760px;height:auto;display:block;border:1px solid var(--line);border-radius:14px;background:#fff;padding:12px;box-shadow:0 8px 24px rgba(10,40,60,.06)}
.why .caption{font-size:13.5px;color:var(--mute);max-width:760px;margin:10px 2px 0}

.evidence{margin:28px 0 8px}
.evidence h2{font-size:21px;margin:0 0 8px}
.ev-intro{font-size:15.5px;color:#33505F;max-width:860px;margin:0 0 16px}
.ev{margin:0 0 18px}
.ev-img{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:14px;background:#fff;padding:12px;box-shadow:0 8px 24px rgba(10,40,60,.06)}
.ev-img.wide{max-width:860px}
.ev figcaption{font-size:13px;color:var(--mute);margin:8px 2px 0;max-width:860px}
.ev-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
@media (max-width:820px){.ev-row{grid-template-columns:1fr}}

/* main panel */
.panel{display:grid;grid-template-columns:340px 1fr;gap:22px;align-items:start}
.control-block{margin-bottom:16px}
.label{display:block;font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--teal);margin-bottom:8px}
.label em{color:var(--ink);font-style:normal;text-transform:none;letter-spacing:0}
.faults{display:flex;flex-wrap:wrap;gap:8px}
.faults button,.ghost{font:inherit;font-size:14px;cursor:pointer;border:1px solid var(--line);
  background:#fff;color:var(--ink);padding:8px 12px;border-radius:9px;transition:.12s}
.faults button:hover{border-color:var(--teal)}
.faults button.active{background:var(--teal);border-color:var(--teal);color:#fff;font-weight:700}
.faults button.edge{color:#9a6a00}
.faults button.edge.active{background:var(--amber);border-color:var(--amber);color:var(--navy)}
input[type=range]{width:100%;accent-color:var(--teal)}
.btn-row{display:flex;gap:8px}
.ghost:hover{border-color:var(--teal);color:var(--teal)}

.readouts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:6px}
.ro{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:12px 14px}
.ro.big{grid-column:1/3;border-left:4px solid var(--amber)}
.ro-label{display:block;font-size:11.5px;color:var(--mute)}
.ro-val{display:block;font-weight:800;color:var(--amber);font-size:34px;line-height:1.1;margin-top:2px;font-family:Georgia,serif}
.ro-val.sm{font-size:20px;color:var(--ink)}
.ro-sub{display:block;font-size:12.5px;color:var(--mute)}

/* viz */
.viz{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 16px 12px;
  box-shadow:0 8px 24px rgba(10,40,60,.06)}
.viz-title{font-weight:700;color:var(--navy)}
.forecast-card{margin:12px 0 14px;border:1px solid #B7D7CD;border-left:5px solid var(--sea);border-radius:12px;background:#F4FBF8;padding:14px 16px}
.forecast-heading{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin-bottom:10px}
.forecast-kicker{font-size:12px;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--teal)}
.forecast-risk{font-size:18px;color:var(--navy)}
.forecast-risk.risk-low{color:var(--green,#1E8449)}
.forecast-risk.risk-moderate{color:#9A6700}
.forecast-risk.risk-high{color:var(--red,#B03A2E)}
.forecast-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px}
.forecast-grid div{min-width:0}
.forecast-grid span{display:block;font-size:11px;color:var(--mute)}
.forecast-grid strong{display:block;font-size:14px;color:var(--ink);line-height:1.3}
.forecast-basis{font-size:11.5px;color:var(--mute);margin:10px 0 0}
.chart-wrap{height:360px;margin-top:8px}
.chart-wrap canvas{width:100%;height:100%;display:block}
.legend{display:flex;flex-wrap:wrap;gap:14px;font-size:12px;color:#46606f;margin:10px 2px 4px}
.legend i.sw{display:inline-block;width:13px;height:13px;border-radius:3px;margin-right:5px;vertical-align:-2px}
.legend i.sw.line{height:3px;border-radius:2px;vertical-align:1px}
.verdict{background:#EAF3F7;border-radius:9px;padding:11px 14px;margin:10px 0 2px;font-size:15px;color:#2b4a59}

/* benchmark */
.bench{margin:30px 0 10px}
.bench h2{font-size:21px;margin:0 0 12px}
.bench .muted{font-family:system-ui,sans-serif;font-size:13px;font-weight:400;color:var(--mute)}
table{border-collapse:collapse;width:100%;max-width:620px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);font-size:15px}
th{background:var(--navy);color:#fff;font-weight:700}
td:not(:first-child),th:not(:first-child){text-align:center}
tbody tr:last-child td{border-bottom:none}
.note{font-size:12.5px;color:var(--mute);max-width:760px;margin-top:12px}

footer{color:var(--mute);font-size:13px;border-top:1px solid var(--line);margin-top:26px;padding:18px 22px 36px}

/* advanced params */
.advanced{margin:4px 0 16px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:0 12px}
.advanced summary{cursor:pointer;padding:10px 2px;font-size:13px;font-weight:700;color:var(--teal)}
.adv-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px;padding:6px 0 10px}
.adv-grid label{display:flex;flex-direction:column;font-size:11.5px;color:var(--mute);gap:3px}
.adv-grid input{font:inherit;font-size:13px;padding:5px 7px;border:1px solid var(--line);border-radius:7px;color:var(--ink);width:100%}
.adv-grid label span{font-size:10.5px}
.advanced #resetParams{margin:2px 0 10px;font-size:13px}

.block-label{display:block;font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--teal);margin:14px 0 7px}

/* detector comparison */
.dets{width:100%;border-collapse:collapse;font-size:13.5px}
.dets th,.dets td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line)}
.dets th{background:#EAF1F6;color:var(--navy);font-weight:700;font-size:12px}
.dets td:nth-child(3),.dets td:nth-child(4),.dets th:nth-child(3),.dets th:nth-child(4){text-align:center}
.dets tr.hl td{background:rgba(30,132,73,.10);font-weight:700;color:#155e3a}
.micro{font-size:11.5px;color:var(--mute);margin:6px 2px 0}

.export-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.export-row .block-label{margin:14px 8px 7px 0}

/* cost calculator */
.cost{margin:26px 0 8px}
.cost h2{font-size:21px;margin:0 0 12px}
.cost .muted{font-family:system-ui,sans-serif;font-size:13px;font-weight:400;color:var(--mute)}
.cost-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.cost-controls{display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.cost-controls label{display:flex;flex-direction:column;font-size:13px;color:var(--ink);gap:6px}
.cost-controls em{font-style:normal;color:var(--teal);font-weight:700}
.cost-out{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-content:start}

/* dataset builder */
.builder-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start;margin-top:6px}
.bld-controls .cost-controls{margin-bottom:16px}
.cost-controls input[type=text]{font:inherit;font-size:14px;padding:6px 9px;border:1px solid var(--line);border-radius:8px;color:var(--ink)}
.bld-checks{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 16px 14px}
.check-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:6px}
.check-row label{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--ink);cursor:pointer}
.check-row input{accent-color:var(--teal)}
.bld-output{position:sticky;top:12px}
.estimate{background:#EAF3F7;border-radius:10px;padding:12px 14px;font-size:14.5px;color:#274a5b;margin-bottom:12px}
.spec-pre{background:var(--navy);color:#D7E6F0;border-radius:12px;padding:14px 16px;font-family:Consolas,'SF Mono',Menlo,monospace;font-size:12.5px;line-height:1.5;overflow:auto;max-height:360px;white-space:pre}
button.primary{font:inherit;font-size:14px;font-weight:700;cursor:pointer;background:var(--teal);color:#fff;border:1px solid var(--teal);padding:9px 15px;border-radius:9px}
button.primary:hover{background:#0a6670}
button.primary:disabled{background:#9fc3c7;border-color:#9fc3c7;cursor:not-allowed}
@media (max-width:820px){.builder-grid{grid-template-columns:1fr}.bld-output{position:static}}

/* top nav */
.topnav{background:var(--navy);border-bottom:1px solid #0a2233}
.topnav .wrap{display:flex;gap:2px;flex-wrap:wrap}
.topnav a{color:#AFC6D8;text-decoration:none;font-size:14px;font-weight:600;padding:11px 14px;border-bottom:3px solid transparent}
.topnav a:hover{color:#fff}
.topnav a.active{color:#fff;border-bottom-color:var(--amber)}

.cip-toggle{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--ink);margin:2px 0 10px;cursor:pointer}
.cip-toggle input{accent-color:var(--teal)}
.diag{background:#EAF3F7;border-radius:9px;padding:9px 14px;margin:8px 0 2px;font-size:14px;color:#2b4a59}
.diag strong{color:var(--navy)}

/* doc / content pages */
.doc{max-width:840px;padding-top:8px}
.doc h2{font-family:Georgia,serif;font-size:23px;color:var(--navy);margin:28px 0 10px}
.doc h3{font-size:16px;color:var(--teal);margin:18px 0 6px}
.doc p,.doc li{font-size:15.5px;color:#2f4a59;line-height:1.62}
.doc ul{padding-left:20px}
.doc code{background:#eef4f8;padding:1px 6px;border-radius:5px;font-size:13.5px;color:#0c3553}
.doc .eq{background:#0B2A43;color:#EAF3F9;padding:12px 16px;border-radius:10px;font-family:Consolas,monospace;font-size:13.5px;overflow-x:auto;margin:8px 0;white-space:pre-wrap}
.doc table{border-collapse:collapse;width:100%;margin:12px 0;font-size:14px}
.doc th,.doc td{border:1px solid var(--line);padding:7px 10px;text-align:left}
.doc th{background:#EAF1F6;color:var(--navy)}
.callout{background:#EAF3F7;border-left:4px solid var(--teal);border-radius:0 9px 9px 0;padding:12px 16px;margin:16px 0;font-size:14.5px;color:#274a5b}
.callout.warn{background:#FFF6E8;border-left-color:var(--amber)}
.doc .btnrow{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
.doc a.button{display:inline-block;background:var(--teal);color:#fff;text-decoration:none;padding:9px 15px;border-radius:9px;font-size:14px;font-weight:600}
.doc a.button.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}

@media (max-width:820px){
  .panel{grid-template-columns:1fr}
  .hero-row{align-items:flex-start}.chips{align-items:flex-start}
  .chart-wrap{height:300px}
  .cost-grid{grid-template-columns:1fr}
  .forecast-grid{grid-template-columns:1fr}
}