:root{
  color-scheme: dark;
  --ground:#0B1320; --panel:#0E1828; --panel2:#121C2C; --inset:#121F33;
  --line:#1E2B40; --line2:#2E3F58;
  --ink:#E9E4D8; --ink2:#C3CAD4; --muted:#8D99AA;
  --gold:#C9A06A; --gold-hi:#E2BD88; --patina:#6FB5A5;
  --sand:#EAE3D4; --sand-ink:#0B1320; --sand-body:#3B4556; --sand-muted:#56617A; --sand-line:#C9BEA8; --bronze:#7A5526;
  --serif:'Libre Caslon Display', Georgia, 'Times New Roman', serif;
  --sans:'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --gutter:clamp(16px, 5vw, 80px);
}
*{box-sizing:border-box}
body{background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--gold)} a:hover{color:var(--gold-hi)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0;text-wrap:balance}
p{margin:0}
.wrap{padding-inline:var(--gutter)}
.label{font-size:12px;font-stretch:125%;font-weight:500;letter-spacing:2.4px;text-transform:uppercase;color:var(--gold)}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;min-height:52px;padding:0 28px;background:var(--gold);color:var(--sand-ink);text-decoration:none;font-weight:600;border:0;font-family:var(--sans);font-size:16px;cursor:pointer}
.btn:hover{background:var(--gold-hi);color:var(--sand-ink)}
.draft{padding:2px 8px;border:1px dashed var(--muted);font-size:11px;font-weight:500;color:var(--muted)}

/* nav */
header.top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:28px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:12px}
.brand b{font-family:var(--serif);font-weight:400;font-size:32px}
.brand span{font-size:12px;font-stretch:125%;font-weight:500;letter-spacing:3px;color:var(--muted)}
nav.main{display:flex;align-items:center;gap:28px;flex-wrap:wrap;font-size:15px}
nav.main a{color:var(--ink);text-decoration:none}
nav.main a.btn{color:var(--sand-ink);min-height:44px;padding:0 20px}

/* sections: rail + content */
.sec{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);column-gap:24px;row-gap:40px;padding-block:120px}
.sec > .rail{padding-top:12px}
.sec > .body{min-width:0;display:flex;flex-direction:column;gap:28px}
.full{grid-column:1 / -1;min-width:0}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,3fr);gap:48px;align-items:end;padding-block:88px 96px}
.hero h1{font-size:clamp(44px,7.4vw,108px);line-height:1;letter-spacing:-1.2px}
.hero .lede{max-width:40em;font-size:clamp(18px,1.6vw,21px);color:var(--ink2);margin-top:32px}
.hero .cta{display:flex;gap:28px;align-items:center;margin-top:36px;flex-wrap:wrap}
.hero figure{margin:0;display:flex;flex-direction:column;gap:12px}
.hero figure img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 28%;display:block}
.hero figcaption{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}
.hero figcaption b{font-weight:400;color:var(--ink)}
.prev{display:flex;align-items:center;gap:16px 36px;flex-wrap:wrap;padding-block:24px;border-block:1px solid var(--line);font-size:16px;color:var(--ink2)}
.prev .langs{margin-left:auto;color:var(--muted)}

/* method */
ol.method{list-style:none;margin:0;padding:0;counter-reset:q;display:flex;flex-direction:column;border-top:1px solid var(--line)}
ol.method li{counter-increment:q;display:grid;grid-template-columns:3em minmax(0,1fr) minmax(0,1.2fr);gap:8px 24px;align-items:baseline;padding-block:18px;border-bottom:1px solid var(--line)}
ol.method li::before{content:counter(q);font-family:var(--serif);font-size:26px;color:var(--gold)}
ol.method b{font-family:var(--serif);font-weight:400;font-size:26px;line-height:1.15}
ol.method span{color:var(--muted);font-size:15px}
.built{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.built div{background:var(--ground);padding:22px;display:flex;flex-direction:column;gap:8px}
.built b{font-family:var(--serif);font-weight:400;font-size:21px;line-height:1.2}
.built span{font-size:13px;color:var(--muted)}
.pr{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding-top:32px;border-top:1px solid var(--sand-line)}
.pr h3{font-size:28px;margin-bottom:8px}
@media (max-width:860px){ol.method li{grid-template-columns:2.2em minmax(0,1fr)} ol.method span{grid-column:2} .pr{grid-template-columns:minmax(0,1fr)}}

/* field log */
.logwrap{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:24px;align-items:start}
.map{position:relative;aspect-ratio:1000/560;max-width:100%;border:1px solid var(--line);background:var(--panel)}
.map svg{position:absolute;inset:0;width:100%;height:100%}
.pin{position:absolute;display:flex;align-items:center;gap:4px;min-height:44px;padding:0;background:none;border:0;color:var(--muted);cursor:pointer;font-family:var(--sans);font-size:13px;white-space:nowrap;transform:translate(-22px,-22px)}
.pin.flip{flex-direction:row-reverse;transform:translate(calc(-100% + 22px),-22px)}
.pin i{width:44px;height:44px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.pin i::after{content:"";width:8px;height:8px;background:var(--muted);transform:rotate(45deg)}
.pin[aria-pressed="true"]{color:var(--ink);font-weight:600}
.pin[aria-pressed="true"] i::after{width:12px;height:12px;background:var(--gold)}
.place{display:flex;flex-direction:column;gap:14px;border-top:2px solid var(--gold);padding-top:14px}
.place .meta{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.place h3{font-size:44px;line-height:1}
.place .role{font-size:15px;font-weight:600;color:var(--gold)}
.place p{font-size:17px;color:var(--ink2)}
.photos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.photos img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}

/* ledger */
.filters{display:flex;gap:8px;flex-wrap:wrap}
.filters button{min-height:44px;padding:0 18px;border:1px solid var(--line2);background:transparent;color:var(--ink);font-family:var(--sans);font-size:14px;cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--sand-ink)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,340px),1fr));gap:24px;align-items:start}
.card{display:flex;flex-direction:column;gap:16px;padding:26px 26px 28px;background:var(--panel);border-top:2px solid var(--gold)}
.card .top{display:flex;justify-content:space-between;gap:12px;font-size:12px;font-stretch:115%;font-weight:500;letter-spacing:1.6px;color:var(--muted);text-transform:uppercase}
.card h3{font-size:28px;line-height:1.15}
.card p{font-size:15px;color:var(--ink2)}
.card .k{font-size:13px;font-weight:600;color:var(--ink);display:flex;gap:10px;align-items:center;margin-bottom:4px}
.card .inc{padding-left:14px;border-left:2px solid var(--gold)}
.card .ai .k{color:var(--patina)}
.card .ground{padding:14px 16px;background:var(--inset)}
.card .ground .k{color:var(--gold)}
.card .ground p{color:var(--ink)}
.card .call{padding-top:14px;border-top:1px solid var(--line)}
.card .call .k{justify-content:space-between}
.card .call .k span{font-weight:400;color:var(--muted)}
.card .call p{font-family:var(--serif);font-size:20px;line-height:1.3;color:var(--ink)}
.card .src{display:flex;flex-direction:column;gap:6px;font-size:14px}
.card .src a{text-decoration:none}
.score{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:24px;padding-top:48px;border-top:1px solid var(--line)}
.score h3{font-size:34px}
.tally{display:flex;gap:18px;margin-top:10px;font-size:14px}
.tbl{overflow-x:auto}
.tbl table{width:100%;min-width:560px;border-collapse:collapse;font-size:15px}
.tbl th{text-align:left;font-size:12px;font-stretch:115%;letter-spacing:1.4px;font-weight:500;color:var(--muted);padding:0 16px 12px 0}
.tbl td{padding:14px 16px 14px 0;border-top:1px solid var(--line);vertical-align:top}
.tbl td.m{color:var(--muted);white-space:nowrap}
.sub{display:flex;gap:16px;align-items:end;flex-wrap:wrap;padding:28px;background:var(--panel2)}
.sub .t{flex:1 1 260px}
.sub label{font-size:17px;font-weight:600;display:block}
.sub input{flex:1 1 240px;min-height:52px;padding:0 16px;border:1px solid var(--line2);background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:16px}
.sub .ok{flex-basis:100%;font-size:14px;color:var(--patina)}

/* work (light band) */
.band{background:var(--sand);color:var(--sand-ink)}
.band .label{color:var(--bronze)}
.band p{color:var(--sand-body)}
.rows{border-top:1px solid var(--sand-ink)}
.row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:24px;padding-block:32px;border-bottom:1px solid var(--sand-line)}
.row h3{font-size:32px;line-height:1.1}
.row .d{font-size:14px;color:var(--sand-muted);margin-top:6px}

/* start */
.qs{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,3fr);gap:48px;align-items:start}
fieldset{border:0;margin:0 0 28px;padding:0;display:flex;flex-direction:column;gap:8px}
legend{font-size:18px;font-weight:500;padding:0 0 10px}
.opt{min-height:48px;padding:0 18px;text-align:left;border:1px solid var(--line2);background:transparent;color:var(--ink);font-family:var(--sans);font-size:16px;cursor:pointer}
.opt[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--sand-ink)}
.result{display:flex;flex-direction:column;gap:14px;padding-top:16px;border-top:2px solid var(--line2)}
.result.on{border-top-color:var(--gold)}
.result h3{font-size:34px}

/* about */
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 40px}
.two p{font-size:18px;color:var(--ink2)}
.creds{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding-top:24px;border-top:1px solid var(--line);font-size:15px}
.creds div span{display:block;color:var(--muted)}

.contact{background:var(--panel2)}
.contact h2{font-size:clamp(40px,6vw,80px);line-height:1}
.contact .acts{display:flex;gap:24px 32px;align-items:center;flex-wrap:wrap}
.clocks{display:flex;gap:10px 28px;flex-wrap:wrap;padding-top:22px;border-top:1px solid #243247;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.clocks b{font-weight:400;color:var(--muted)} .clocks b.open{color:var(--ink)}
footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:36px;font-size:13px;color:var(--muted)}

@media (max-width: 860px){
  .sec{grid-template-columns:minmax(0,1fr);padding-block:80px;row-gap:24px}
  .hero{grid-template-columns:minmax(0,1fr);padding-block:56px 64px}
  .hero figure{max-width:320px}
  .logwrap,.qs,.score,.two{grid-template-columns:minmax(0,1fr)}
  .creds{grid-template-columns:repeat(2,minmax(0,1fr))}
  .row{grid-template-columns:minmax(0,1fr);gap:10px}
  .prev .langs{margin-left:0}
  .pin{font-size:11px}
}
@media (max-width: 560px){
  .pin span{display:none}
  .pin[aria-pressed="true"] span{display:inline}
}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}

html,body{margin:0}
/* v3 additions */
.lesson{margin:0;padding:14px 0 0;border-top:1px solid var(--line);font-family:var(--serif);font-size:19px;line-height:1.45;color:var(--ink)}
.lesson .k{display:block;font-family:var(--sans);font-size:12px;font-stretch:125%;font-weight:500;letter-spacing:2px;text-transform:uppercase;color:var(--gold);margin-bottom:8px}
.case{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:start}
.case p{font-size:18px;color:var(--ink2)}
.case .facts{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.case .facts div{display:flex;justify-content:space-between;gap:16px;padding-block:14px;border-bottom:1px solid var(--line);font-size:15px}
.case .facts b{font-family:var(--serif);font-weight:400;font-size:24px;color:var(--gold);white-space:nowrap}
.case .moral{font-family:var(--serif);font-size:24px;line-height:1.3;color:var(--ink)}
.sit{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:24px;padding-block:32px;border-bottom:1px solid var(--sand-line)}
.sit h3{font-size:32px;line-height:1.1}
.sit .d{font-size:14px;color:var(--sand-muted);margin-top:8px}
.sit .get{margin-top:12px;font-size:15px;color:var(--sand-ink);font-weight:600}
.verdict{font-family:var(--sans)!important;font-size:14px!important;color:var(--patina)!important;margin-top:8px!important}
.more{display:inline-flex;align-items:center;gap:8px;font-size:16px}
@media (max-width:860px){.case,.sit{grid-template-columns:minmax(0,1fr)}}