:root{
  --ink:#0D1319;
  --ink-2:#141D26;
  --rule-dk:#26313D;
  --paper:#E7EAEE;
  --paper-hi:#F3F5F7;
  --type:#121A22;
  --type-2:#55616F;
  --type-3:#7C8794;
  --rule:#CBD1D9;
  --blue:#22406B;
  --brass:#C08A2E;
  --brass-hi:#E0A63F;
  --brass-lo:#7E5C1D;
  --measure:34rem;
  --gut:clamp(1.25rem,5vw,4rem);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--type);
  font-family:'Spectral',Georgia,serif;font-weight:400;
  font-size:clamp(1rem,.96rem + .2vw,1.1rem);line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
::selection{background:var(--brass);color:var(--ink)}

/* ---------- utility type ---------- */
.mono{font-family:'IBM Plex Mono',ui-monospace,monospace}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:.66rem;font-weight:500;
  letter-spacing:.19em;text-transform:uppercase;color:var(--type-3);
}
.eyebrow.on-dark{color:var(--brass)}

/* ---------- nav ---------- */
header.nav{
  position:sticky;top:0;z-index:60;background:var(--ink);
  border-bottom:1px solid var(--rule-dk);
}
.nav-in{
  max-width:78rem;margin:0 auto;padding:0 var(--gut);
  height:58px;display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.brand{
  font-family:'IBM Plex Mono',monospace;font-size:.74rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--paper);
  text-decoration:none;display:flex;align-items:center;gap:.6rem;
}
.brand .tick{width:7px;height:7px;background:var(--brass);border-radius:1px;flex:none}
.nav ul{list-style:none;display:flex;gap:1.7rem;margin:0;padding:0}
.nav a.link{
  font-family:'IBM Plex Mono',monospace;font-size:.7rem;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;color:#98A4B2;text-decoration:none;
  padding:.4rem 0;border-bottom:1px solid transparent;transition:color .18s,border-color .18s;
}
.nav a.link:hover,.nav a.link.active{color:var(--paper-hi);border-color:var(--brass)}
.nav-toggle{display:none;background:none;border:0;color:var(--paper);padding:.4rem;cursor:pointer}

/* ---------- dark band ---------- */
.band{background:var(--ink);color:#D8DEE6;position:relative;overflow:hidden}
.band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(115% 80% at 78% 8%,rgba(192,138,46,.10),transparent 62%);
}
.band-in{max-width:78rem;margin:0 auto;padding:clamp(3rem,7vw,6rem) var(--gut) clamp(2.5rem,5vw,4rem);position:relative;z-index:2}

/* ---------- hero ---------- */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
h1.lede{
  font-family:'Spectral',serif;font-weight:300;
  font-size:clamp(2.1rem,1.1rem + 3.4vw,4.05rem);line-height:1.06;
  letter-spacing:-.022em;margin:1.4rem 0 0;color:#F1F4F7;text-wrap:balance;
}
h1.lede em{font-style:italic;color:var(--brass-hi)}
.hero p.sub{
  max-width:30rem;margin:1.5rem 0 0;color:#9FADBC;font-size:1.02rem;line-height:1.68;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2rem}
.btn{
  font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  padding:.78rem 1.35rem;text-decoration:none;border:1px solid var(--brass);
  color:var(--ink);background:var(--brass);transition:background .18s,color .18s,border-color .18s;
}
.btn:hover{background:var(--brass-hi);border-color:var(--brass-hi)}
.btn.ghost{background:transparent;border-color:#394654;color:#C3CEDA}
.btn.ghost:hover{border-color:var(--brass);color:var(--brass-hi);background:transparent}

/* ---------- signature: bitemporal field ---------- */
.field{border:1px solid var(--rule-dk);background:#0A1016;padding:0}
.field-hd{
  display:flex;justify-content:space-between;align-items:baseline;gap:1rem;
  padding:.7rem .9rem;border-bottom:1px solid var(--rule-dk);
}
.field svg{display:block;width:100%;height:auto;touch-action:none;cursor:ew-resize;cursor:ns-resize}
.field-ft{border-top:1px solid var(--rule-dk);padding:.75rem .9rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.verdict{font-family:'IBM Plex Mono',monospace;font-size:.9rem;font-weight:600;letter-spacing:.1em}
.verdict .v-none{color:#5E6B7A}.verdict .v-low{color:#9FA9B5}.verdict .v-crit{color:var(--brass-hi)}
.readout{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.12em;color:#6E7C8B;text-transform:uppercase}
.field-note{margin:.85rem 0 0;font-size:.83rem;line-height:1.6;color:#78838F;max-width:31rem}
.field-note b{color:#A8B4C1;font-weight:400;font-style:italic}

/* ---------- credentials strip ---------- */
.creds{border-top:1px solid var(--rule-dk);background:var(--ink-2)}
.creds-in{
  max-width:78rem;margin:0 auto;padding:1.5rem var(--gut);
  display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;
}
.cred b{display:block;font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brass);font-weight:500;margin-bottom:.4rem}
.cred span{font-size:.92rem;color:#98A4B2;line-height:1.45;display:block}

/* ---------- light sections ---------- */
main{display:block}
section.light{max-width:78rem;margin:0 auto;padding:clamp(3.5rem,7vw,6rem) var(--gut)}
.sec-hd{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;
  border-bottom:1px solid var(--rule);padding-bottom:.8rem;margin-bottom:2.4rem}
h2.sec{font-family:'Spectral',serif;font-weight:400;font-size:clamp(1.5rem,1.1rem + 1.2vw,2.1rem);
  letter-spacing:-.015em;margin:0;line-height:1.15}

/* ---------- essay index ---------- */
.entry{
  position:relative;
  display:grid;grid-template-columns:5.5rem 1fr;gap:clamp(1rem,3vw,2.5rem);
  padding:2rem 0;border-bottom:1px solid var(--rule);text-decoration:none;color:inherit;
}
.entry:first-of-type{border-top:1px solid var(--rule)}
.entry::before{
  content:"";position:absolute;top:1px;bottom:0;left:clamp(-1.4rem,-2vw,-.7rem);right:clamp(-1.4rem,-2vw,-.7rem);
  background:transparent;transition:background .22s;z-index:0;
}
.entry:hover::before{background:var(--paper-hi)}
.entry > *{position:relative;z-index:1}
.entry:hover h3{color:var(--blue)}
.entry .idx{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.13em;
  color:var(--type-3);text-transform:uppercase;padding-top:.5rem;line-height:1.7}
.entry h3{font-family:'Spectral',serif;font-weight:400;font-size:clamp(1.3rem,1.05rem + .9vw,1.9rem);
  line-height:1.2;letter-spacing:-.015em;margin:0 0 .55rem;transition:color .18s;text-wrap:balance}
.entry p{margin:0;color:var(--type-2);max-width:38rem;font-size:.98rem}
.entry .more{font-family:'IBM Plex Mono',monospace;font-size:.64rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brass-lo);margin-top:.9rem;display:inline-block}

/* ---------- essay reader ---------- */
.reader{max-width:78rem;margin:0 auto;padding:clamp(2.5rem,6vw,5rem) var(--gut) 5rem}
.back{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--type-3);text-decoration:none;display:inline-block;margin-bottom:2.5rem}
.back:hover{color:var(--blue)}
.reader h1{font-family:'Spectral',serif;font-weight:400;
  font-size:clamp(1.9rem,1.2rem + 2.4vw,3.15rem);line-height:1.1;letter-spacing:-.022em;
  margin:.9rem 0 1.2rem;max-width:22ch;text-wrap:balance}
.meta{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--type-3);padding-bottom:1.6rem;border-bottom:1px solid var(--rule);margin-bottom:2.6rem}
.prose{max-width:var(--measure)}
.prose p{margin:0 0 1.35rem}
.prose > p:first-of-type::first-letter{
  float:left;font-size:3.55rem;line-height:.82;font-weight:400;
  padding:.16em .12em 0 0;color:var(--blue);
}
.prose h2{font-family:'Spectral',serif;font-weight:500;font-size:1.32rem;letter-spacing:-.01em;
  line-height:1.3;margin:2.9rem 0 1rem}
.prose blockquote{
  margin:2.2rem 0;padding:0 0 0 1.4rem;border-left:2px solid var(--brass);
  font-style:italic;color:var(--type-2);font-size:1.06rem;line-height:1.6
}
.prose ul{margin:0 0 1.35rem;padding-left:1.1rem}
.prose li{margin-bottom:.5rem}
.prose strong{font-weight:600}
.prose em{font-style:italic}
.rule-end{border:0;border-top:1px solid var(--rule);margin:3.2rem 0 1.5rem;max-width:var(--measure)}
.sig{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--type-3);max-width:var(--measure);line-height:1.9}

/* ---------- work ---------- */
.offers{display:grid;gap:0;border-top:1px solid var(--rule)}
.offer{display:grid;grid-template-columns:1fr auto;gap:1.5rem 2.5rem;align-items:start;
  padding:2.1rem 0;border-bottom:1px solid var(--rule)}
.offer h3{font-family:'Spectral',serif;font-weight:500;font-size:1.3rem;margin:0 0 .5rem;letter-spacing:-.01em}
.offer p{margin:0;color:var(--type-2);max-width:40rem;font-size:.98rem}
.offer .price{font-family:'IBM Plex Mono',monospace;font-size:.95rem;font-weight:500;
  color:var(--type);white-space:nowrap;text-align:right}
.offer .price small{display:block;font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--type-3);font-weight:400;margin-top:.35rem}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:16rem 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.portrait{border:1px solid var(--rule);background:var(--paper-hi);padding:.5rem}
.portrait img{filter:grayscale(1) contrast(1.06) brightness(1.02)}
.portrait figcaption{font-family:'IBM Plex Mono',monospace;font-size:.6rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--type-3);padding:.7rem .2rem .25rem;line-height:1.6}
.hero-portrait{width:clamp(7rem,14vw,9.5rem);border:1px solid var(--rule-dk);padding:.35rem;background:#0A1016;margin-bottom:1.2rem}
.hero-portrait img{filter:grayscale(1) contrast(1.12) brightness(.94)}
.facts{list-style:none;margin:2rem 0 0;padding:0;border-top:1px solid var(--rule)}
.facts li{display:grid;grid-template-columns:9.5rem 1fr;gap:1.5rem;padding:.85rem 0;
  border-bottom:1px solid var(--rule);font-size:.95rem}
.facts b{font-family:'IBM Plex Mono',monospace;font-size:.63rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--type-3);font-weight:500;padding-top:.28rem}

/* ---------- contact ---------- */
.contact{background:var(--ink);color:#C3CEDA}
.contact-in{max-width:78rem;margin:0 auto;padding:clamp(3rem,6vw,5rem) var(--gut)}
.contact h2{font-family:'Spectral',serif;font-weight:300;font-size:clamp(1.7rem,1.1rem + 2vw,2.9rem);
  margin:.8rem 0 1rem;color:#F1F4F7;letter-spacing:-.02em;line-height:1.15;max-width:20ch}
.contact p{max-width:34rem;color:#93A0AF;margin:0 0 1.8rem}
.mailto{font-family:'IBM Plex Mono',monospace;font-size:clamp(.95rem,.85rem + .5vw,1.3rem);
  color:var(--brass-hi);text-decoration:none;border-bottom:1px solid var(--brass-lo);padding-bottom:.2rem;letter-spacing:.02em}
.mailto:hover{border-color:var(--brass-hi)}

footer.foot{background:var(--ink);border-top:1px solid var(--rule-dk)}
.foot-in{max-width:78rem;margin:0 auto;padding:1.4rem var(--gut);display:flex;
  justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-family:'IBM Plex Mono',monospace;font-size:.63rem;letter-spacing:.13em;
  text-transform:uppercase;color:#5D6875}


/* ---------- reader rail ---------- */
.reader-grid{display:grid;grid-template-columns:minmax(0,var(--measure)) 1fr;gap:clamp(2rem,7vw,6rem);align-items:start}
.rail{position:sticky;top:88px;max-width:17rem;padding-top:.4rem}
.rail ol{list-style:none;margin:1rem 0 0;padding:0;counter-reset:r}
.rail li{counter-increment:r;border-top:1px solid var(--rule)}
.rail li:last-child{border-bottom:1px solid var(--rule)}
.rail a{display:block;padding:.85rem 0;text-decoration:none;font-size:.9rem;line-height:1.35;color:var(--type-2)}
.rail ol a::before{content:"0" counter(r);font-family:'IBM Plex Mono',monospace;font-size:.6rem;
  letter-spacing:.14em;color:var(--type-3);display:block;margin-bottom:.3rem}
.rail a:hover{color:var(--blue)}
.rail li.cur a{color:var(--type)}
.rail li.cur a::before{color:var(--brass-lo)}
.rail li.cur{background:var(--paper-hi);box-shadow:inset 2px 0 0 var(--brass)}
.rail li.cur a{padding-left:.7rem}
.rail-cta{margin-top:1.8rem;padding-top:1.3rem;border-top:2px solid var(--type)}
.rail-cta p{margin:0 0 .7rem;font-size:.88rem;line-height:1.5;color:var(--type-2)}
.rail-cta a{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--blue);text-decoration:none;border-bottom:1px solid var(--rule);padding-bottom:.2rem}
.rail-cta a:hover{border-color:var(--blue)}
section.light.narrow{max-width:64rem}


/* ---------- signup ---------- */
.signup-wrap{padding-top:0!important}
.signup{border-top:2px solid var(--type);border-bottom:1px solid var(--rule);
  padding:2.2rem 0;display:grid;grid-template-columns:1fr minmax(0,20rem);
  gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
.signup h3{font-family:'Spectral',serif;font-weight:400;font-size:1.45rem;margin:.7rem 0 .6rem;letter-spacing:-.01em}
.signup p{margin:0;color:var(--type-2);max-width:34rem;font-size:.96rem}
.signup-form{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.4rem}
.signup-form input{flex:1 1 11rem;min-width:0;font-family:'IBM Plex Mono',monospace;font-size:.78rem;
  padding:.75rem .8rem;border:1px solid var(--rule);background:var(--paper-hi);color:var(--type)}
.signup-form input:focus{outline:none;border-color:var(--blue);background:#fff}
.signup-form button{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.14em;
  text-transform:uppercase;padding:.75rem 1.15rem;border:1px solid var(--type);background:var(--type);
  color:var(--paper-hi);cursor:pointer;transition:background .18s,border-color .18s}
.signup-form button:hover{background:var(--blue);border-color:var(--blue)}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none}
.signup-msg{flex-basis:100%;margin:.55rem 0 0;font-family:'IBM Plex Mono',monospace;
  font-size:.68rem;letter-spacing:.06em;line-height:1.5;min-height:1em}
.signup-msg.is-ok{color:var(--blue)}
.signup-msg.is-err{color:#8C2F1F}
.signup-form button:disabled{opacity:.55;cursor:progress}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.foot-a{color:#8492A1;text-decoration:none;border-bottom:1px solid #333F4B}
.foot-a:hover{color:var(--brass)}
@media (max-width:760px){.signup{grid-template-columns:1fr}}


/* ---------- spec ---------- */
.prose.spec h2{font-size:1.18rem;font-weight:600;margin:2.6rem 0 .9rem;
  padding-top:.9rem;border-top:1px solid var(--rule)}
.prose.spec code{font-family:'IBM Plex Mono',monospace;font-size:.82em;background:var(--paper-hi);
  border:1px solid var(--rule);padding:.08em .34em;color:var(--blue)}
.prose.spec table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.93rem}
.prose.spec th{text-align:left;font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--type-3);font-weight:500;padding:.5rem .8rem .5rem 0;
  border-bottom:1px solid var(--type)}
.prose.spec td{padding:.7rem .8rem .7rem 0;border-bottom:1px solid var(--rule);vertical-align:top;color:var(--type-2)}
.prose.spec td:first-child{color:var(--type)}
.prose.spec blockquote{background:var(--paper-hi);border-left:2px solid var(--brass);padding:1rem 1.2rem;font-style:normal}
.prose.spec .subhd{margin:1.9rem 0 .5rem;color:var(--type)}
.prose.spec .subhd strong{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.15em;
  text-transform:uppercase;font-weight:600;color:var(--brass-lo)}
.prose.spec h2{scroll-margin-top:80px}
.prose.spec .note{font-size:.88rem;color:var(--type-3);font-style:italic}
.prose.spec > p:first-of-type::first-letter{float:none;font-size:inherit;padding:0;color:inherit;line-height:inherit}
.rail ol.toc{counter-reset:none}
.rail ol.toc a::before{content:none}
.rail ol.toc a{padding:.6rem 0;font-size:.85rem}

/* ---------- motion ---------- */
.rise{opacity:0;transform:translateY(14px)}
.rise.in{opacity:1;transform:none;transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}

@media (max-width:860px){
  .hero{grid-template-columns:1fr}
  .creds-in{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .portrait{max-width:15rem}
  .nav ul{gap:1.1rem}
  .offer{grid-template-columns:1fr}
  .offer .price{text-align:left}
  .facts li{grid-template-columns:1fr;gap:.2rem}
  .entry{grid-template-columns:1fr}
  .entry .idx{padding-top:0}
}
@media (max-width:900px){
  .reader-grid{grid-template-columns:1fr;gap:2.5rem}
  .rail{position:static;max-width:none;border-top:1px solid var(--rule);padding-top:1.6rem}
}
@media (max-width:640px){
  .nav-in{height:auto;padding-top:.7rem;padding-bottom:.7rem;flex-direction:column;align-items:flex-start;gap:.6rem}
  .brand{white-space:nowrap;font-size:.7rem}
  .nav ul{width:100%;justify-content:space-between;gap:.5rem}
  .nav .lg{display:none}
  .field-hd{flex-direction:column;align-items:flex-start;gap:.35rem}
  .rail{top:auto}
}
@media (max-width:560px){
  .nav a.link{font-size:.62rem;letter-spacing:.08em}
  .creds-in{grid-template-columns:1fr;gap:1.1rem}
  .prose > p:first-of-type::first-letter{font-size:2.9rem}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .rise{opacity:1;transform:none}
}

/* ============ tools: assessment ============ */
.tool{max-width:44rem}
.q{border-top:1px solid var(--rule);padding:1.5rem 0}
.q:last-of-type{border-bottom:1px solid var(--rule)}
.q-n{font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--type-3);display:block;margin-bottom:.45rem}
.q-t{font-size:1.02rem;line-height:1.5;margin:0 0 1rem;max-width:36rem}
.q-t .ref{font-family:'IBM Plex Mono',monospace;font-size:.62rem;color:var(--brass-lo);
  letter-spacing:.1em;margin-left:.5rem;white-space:nowrap}
.opts{display:flex;gap:.5rem;flex-wrap:wrap}
.opts button{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.1em;
  text-transform:uppercase;padding:.6rem .95rem;border:1px solid var(--rule);
  background:var(--paper-hi);color:var(--type-2);cursor:pointer;transition:all .16s}
.opts button:hover{border-color:var(--type-3);color:var(--type)}
.opts button[aria-pressed="true"]{background:var(--type);border-color:var(--type);color:var(--paper-hi)}
.progress{position:sticky;top:58px;z-index:40;background:var(--paper);
  border-bottom:1px solid var(--rule);padding:.7rem 0;margin-bottom:1rem}
.progress-bar{height:2px;background:var(--rule);position:relative}
.progress-bar i{position:absolute;inset:0 auto 0 0;background:var(--brass);width:0;transition:width .3s}
.progress span{font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--type-3);display:block;margin-bottom:.5rem}

.result{border:1px solid var(--type);background:var(--paper-hi);padding:0;margin:2.5rem 0}
.result-hd{background:var(--ink);color:var(--paper-hi);padding:1.6rem 1.6rem 1.4rem}
.result-grade{font-family:'IBM Plex Mono',monospace;font-size:2.6rem;font-weight:600;
  letter-spacing:.02em;line-height:1;color:var(--brass-hi)}
.result-hd p{margin:.6rem 0 0;color:#9FADBC;font-size:.95rem;max-width:32rem}
.result-bd{padding:1.5rem 1.6rem}
.result-bd h4{font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--type-3);margin:0 0 .8rem;font-weight:500}
.fails{list-style:none;margin:0 0 1.6rem;padding:0}
.fails li{padding:.6rem 0;border-bottom:1px solid var(--rule);font-size:.94rem;
  display:grid;grid-template-columns:4.5rem 1fr;gap:1rem;align-items:baseline}
.fails li:last-child{border-bottom:0}
.fails code{font-family:'IBM Plex Mono',monospace;font-size:.66rem;color:var(--brass-lo);letter-spacing:.06em}
.ladder{display:grid;gap:0;margin:0 0 1.6rem}
.ladder div{display:grid;grid-template-columns:3.2rem 1fr auto;gap:1rem;align-items:center;
  padding:.65rem 0;border-bottom:1px solid var(--rule);font-size:.92rem}
.ladder b{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.08em}
.ladder .st{font-family:'IBM Plex Mono',monospace;font-size:.6rem;letter-spacing:.13em;text-transform:uppercase}
.ladder .pass .st{color:var(--blue)}
.ladder .fail .st{color:var(--type-3)}
.hidden{display:none!important}

/* ============ tools: calibration ============ */
.drop{border:1px dashed var(--rule);background:var(--paper-hi);padding:2.2rem 1.5rem;text-align:center;
  transition:border-color .18s,background .18s}
.drop.over{border-color:var(--brass);background:#EFF1F4}
.drop p{margin:.6rem 0 0;color:var(--type-2);font-size:.92rem}
.drop .btn-in{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.13em;
  text-transform:uppercase;padding:.7rem 1.2rem;border:1px solid var(--type);background:var(--type);
  color:var(--paper-hi);cursor:pointer;display:inline-block}
.linkish{background:none;border:0;font-family:'IBM Plex Mono',monospace;font-size:.66rem;
  letter-spacing:.12em;text-transform:uppercase;color:var(--blue);cursor:pointer;
  border-bottom:1px solid var(--rule);padding:0 0 .15rem}
.linkish:hover{border-color:var(--blue)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));gap:0;
  border-top:1px solid var(--rule);margin:2rem 0 0}
.stat{padding:1rem 1.2rem 1rem 0;border-bottom:1px solid var(--rule)}
.stat b{display:block;font-family:'IBM Plex Mono',monospace;font-size:.6rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--type-3);font-weight:500;margin-bottom:.35rem}
.stat span{font-family:'IBM Plex Mono',monospace;font-size:1.35rem;color:var(--type)}
.stat small{display:block;font-size:.78rem;color:var(--type-3);margin-top:.25rem;font-family:'Spectral',serif}
.chartbox{border:1px solid var(--rule);background:var(--paper-hi);padding:1.2rem;margin-top:2rem}
.chartbox h4{font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--type-3);margin:0 0 1rem;font-weight:500}
.chartbox svg{width:100%;height:auto;display:block}
.verdictline{border-left:2px solid var(--brass);padding:.9rem 0 .9rem 1.2rem;margin:2rem 0 0;
  font-size:1.02rem;line-height:1.6;color:var(--type)}
.err{color:#8C2F1F;font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.06em;margin-top:1rem}

/* ============ tool cards on home ============ */
.tools-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--rule)}
.toolcard{padding:1.8rem 1.6rem 1.8rem 0;border-bottom:1px solid var(--rule);text-decoration:none;color:inherit;
  display:block;position:relative}
.toolcard:nth-child(odd){border-right:1px solid var(--rule);padding-right:2.2rem}
.toolcard:nth-child(even){padding-left:2.2rem}
.toolcard:hover h3{color:var(--blue)}
.toolcard h3{font-family:'Spectral',serif;font-weight:500;font-size:1.18rem;margin:.5rem 0 .5rem;transition:color .18s}
.toolcard p{margin:0;color:var(--type-2);font-size:.93rem;line-height:1.55}
.toolcard .more{font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--brass-lo);margin-top:.9rem;display:inline-block}
@media (max-width:760px){
  .tools-grid{grid-template-columns:1fr}
  .toolcard:nth-child(odd){border-right:0;padding-right:0}
  .toolcard:nth-child(even){padding-left:0}
}

#result,#cal-out{scroll-margin-top:140px}
.stats{grid-template-columns:repeat(auto-fit,minmax(10.5rem,1fr))}