/* Nephos · paint and ledger. The shared look for every page.
   Night desk (Prussian blue) for paintings, register paper for records,
   one red for the pencil and the verdict stamps. */

@font-face{font-family:"Bodoni Moda";font-style:normal;font-weight:400 900;font-display:swap;src:url(/fonts/bodoni-moda-variable.woff2) format("woff2")}
@font-face{font-family:"Bodoni Moda";font-style:italic;font-weight:400 900;font-display:swap;src:url(/fonts/bodoni-moda-variable-italic.woff2) format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(/fonts/source-serif-4-variable.woff2) format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(/fonts/source-serif-4-variable-italic.woff2) format("woff2")}

:root{
  --night:#13233a;
  --night-2:#0e1b2d;
  --night-3:#1b3150;
  --lamp:rgba(255,232,196,.13);
  --paper:#ece8de;
  --paper-2:#e2ddd0;
  --paper-3:#d3ccbb;
  --card:#f6f3ec;
  --ink:#18202c;
  --ink-2:#434b57;
  --ink-3:#565d68;
  --on-night:#eeebe3;
  --on-night-2:#b9c2cf;
  --on-night-3:#8f9bab;
  --red:#c3262f;
  --red-ink:#a81e27;
  --red-bright:#ff6a5c;
  --rule-blue:#8eabc6;
  --rule-blue-soft:rgba(142,171,198,.38);
  --display:"Bodoni Moda","Didot","Bodoni 72",Georgia,serif;
  --text:"Source Serif 4","Iowan Old Style",Georgia,serif;
  --max:1360px;
  --gutter:clamp(20px,4.4vw,64px);
  --shadow-paper:0 1px 1px rgba(5,10,20,.28),0 10px 22px -10px rgba(5,10,20,.55),0 34px 60px -28px rgba(5,10,20,.6);
  --shadow-lift:0 2px 2px rgba(5,10,20,.3),0 18px 30px -12px rgba(5,10,20,.6),0 48px 80px -30px rgba(5,10,20,.65);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-in-out:cubic-bezier(.65,0,.35,1);
  --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 18px/1.6 var(--text);font-optical-sizing:auto;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-variant-numeric:lining-nums proportional-nums}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.18em}
a:hover{text-decoration-color:var(--red)}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:1px}
.on-night :focus-visible,.night :focus-visible{outline-color:var(--red-bright)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:500;text-wrap:balance}
cite,.work{font-style:italic}
.tnum,table{font-variant-numeric:tabular-nums lining-nums}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:10px;z-index:100;background:var(--ink);color:var(--paper);padding:10px 14px;text-decoration:none}
.skip:focus{left:12px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}

/* ── surfaces ─────────────────────────────────────────────── */
.night{background:var(--night);color:var(--on-night);position:relative;isolation:isolate}
.night::before{content:"";position:absolute;inset:0;z-index:-1;background-image:var(--grain);opacity:.07;mix-blend-mode:screen;pointer-events:none}
.paper-ground{background:var(--paper);position:relative;isolation:isolate}
.paper-ground::before{content:"";position:absolute;inset:0;z-index:-1;background-image:var(--grain);opacity:.09;mix-blend-mode:multiply;pointer-events:none}
/* the ledger: blue ruling and the red double margin, used where a page is a register */
.ledger{background-image:linear-gradient(90deg,transparent calc(var(--margin,96px) - 5px),rgba(195,38,47,.55) calc(var(--margin,96px) - 5px),rgba(195,38,47,.55) calc(var(--margin,96px) - 4px),transparent calc(var(--margin,96px) - 4px),transparent var(--margin,96px),rgba(195,38,47,.55) var(--margin,96px),rgba(195,38,47,.55) calc(var(--margin,96px) + 1px),transparent calc(var(--margin,96px) + 1px)),repeating-linear-gradient(180deg,transparent 0 calc(var(--line,32px) - 1px),var(--rule-blue-soft) calc(var(--line,32px) - 1px) var(--line,32px))}

/* ── type ─────────────────────────────────────────────────── */
.display{font-family:var(--display);font-weight:500;font-variation-settings:"opsz" 48;letter-spacing:-.012em;line-height:1.02}
.h-xl{font-family:var(--display);font-weight:500;font-size:clamp(52px,6.1vw,96px);line-height:1;letter-spacing:-.018em;font-variation-settings:"opsz" 48}
.h-l{font-family:var(--display);font-weight:500;font-size:clamp(40px,4.4vw,68px);line-height:1.08;letter-spacing:-.014em;font-variation-settings:"opsz" 36}
.h-m{font-family:var(--display);font-weight:500;font-size:clamp(30px,2.9vw,44px);line-height:1.06;letter-spacing:-.01em}
.h-s{font-family:var(--display);font-weight:600;font-size:24px;line-height:1.15}
.lede{font-size:clamp(19px,1.45vw,22px);line-height:1.5;max-width:40ch}
.kicker{font:italic 400 17px/1.35 var(--text);color:var(--red-ink);margin:0 0 14px;letter-spacing:.005em}
.night .kicker{color:var(--red-bright)}
.meta{font-size:15px;line-height:1.45;color:var(--ink-3)}
.night .meta{color:var(--on-night-3)}
.small{font-size:15px;line-height:1.5}
.muted{color:var(--ink-2)}
.night .muted{color:var(--on-night-2)}
.nd{font-family:var(--text);font-weight:600;letter-spacing:0}
.big-num{font-family:var(--display);font-weight:500;font-variation-settings:"opsz" 36;letter-spacing:-.02em;line-height:.9;font-variant-numeric:lining-nums}

/* ── masthead ─────────────────────────────────────────────── */
.mast{position:relative;z-index:30}
.mast-in{max-width:var(--max);margin:0 auto;padding:22px var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:28px}
.mark{display:inline-flex;align-items:baseline;gap:12px;text-decoration:none;color:inherit}
.mark-name{font:italic 600 30px/1 var(--display);font-variation-settings:"opsz" 24;letter-spacing:-.01em}
.mark-tag{font:italic 400 15px/1 var(--text);opacity:.72}
.mast nav{display:flex;align-items:center;gap:clamp(16px,2.2vw,34px);font:400 17px/1 var(--text)}
.mast nav a{text-decoration:none;padding:8px 0;position:relative}
.mast nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease-out)}
.mast nav a:hover::after,.mast nav a[aria-current=page]::after{transform:scaleX(1)}
.mast.on-night{color:var(--on-night)}
.mast.on-night nav a::after{background:var(--red-bright)}
.mast.on-paper{border-bottom:1px solid var(--paper-3);background:var(--paper)}
.mast.site-top{background:var(--night);color:var(--on-night);isolation:isolate}
.mast.site-top::before{content:"";position:absolute;inset:0;z-index:-1;background-image:var(--grain);opacity:.07;mix-blend-mode:screen;pointer-events:none}
.mast.site-top .mast-in{padding-top:18px;padding-bottom:18px}
.mast .nav-cta{border:1px solid currentColor;padding:9px 14px!important;border-radius:2px}
.mast .nav-cta::after{display:none}
.mast .nav-cta:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.mast.on-night .nav-cta:hover{background:var(--on-night);color:var(--night);border-color:var(--on-night)}

/* ── buttons ──────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:10px;font:500 17px/1 var(--text);text-decoration:none;padding:15px 22px 16px;border-radius:2px;border:1px solid currentColor;cursor:pointer;background:transparent;color:inherit;transition:background .25s,color .25s,border-color .25s}
.btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-red{background:var(--red);border-color:var(--red);color:#fff}
.btn-red:hover{background:var(--red-ink);border-color:var(--red-ink);color:#fff}
.night .btn:hover{background:var(--on-night);color:var(--night);border-color:var(--on-night)}
.night .btn-red:hover{background:#d7343c;border-color:#d7343c;color:#fff}
.btn svg{width:18px;height:18px}
.text-link{font-style:italic;text-decoration:underline;text-decoration-color:var(--red);text-decoration-thickness:1.5px;text-underline-offset:.22em}
.night .text-link{text-decoration-color:var(--red-bright)}

/* ── stamps: a verdict pressed in red ink ─────────────────── */
.stamp{--rot:-4deg;display:inline-flex;align-items:center;gap:.5em;font:700 12.5px/1 var(--text);letter-spacing:.14em;text-transform:uppercase;color:var(--red);padding:7px 10px 6px;border:2px solid currentColor;border-radius:3px;box-shadow:inset 0 0 0 1.5px var(--card),inset 0 0 0 2.5px currentColor;transform:rotate(var(--rot));white-space:nowrap;-webkit-mask-image:var(--stamp-mask);mask-image:var(--stamp-mask);font-variant-numeric:lining-nums}
:root{--stamp-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='60'%3E%3Cfilter id='s'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' seed='4'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='discrete' tableValues='1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23s)'/%3E%3C/svg%3E")}
.night .stamp{color:var(--red-bright);box-shadow:inset 0 0 0 1.5px var(--night),inset 0 0 0 2.5px currentColor}
.stamp.partial{color:var(--red)}
.stamp.contradicts{color:#fff;background:var(--red);border-color:var(--red);box-shadow:none}
.stamp.unknown{color:var(--ink-3);border-style:dashed;box-shadow:none}
.stamp.agrees{color:#1f5b4a}
.stamp.context{color:var(--ink-2);box-shadow:none}
.night .stamp.unknown,.night .stamp.context{color:var(--on-night-2)}
.night .stamp.partial{color:var(--red-bright)}
.night .stamp.agrees{color:#8fd6b8}
.stamp.big{font-size:17px;padding:11px 16px 10px;border-width:3px}
.stamp.two{flex-direction:column;gap:.3em;text-align:center;line-height:1.1}
.stamp small{display:block;font:italic 500 .72em/1 var(--text);letter-spacing:.02em;text-transform:none;opacity:.92;margin-bottom:.15em}
.stamp[data-land]{opacity:0}
.stamp.landed{animation:stamp-land .42s var(--ease-out) forwards}
@keyframes stamp-land{0%{opacity:0;transform:rotate(calc(var(--rot) - 6deg)) scale(1.9)}55%{opacity:1;transform:rotate(var(--rot)) scale(.94)}100%{opacity:1;transform:rotate(var(--rot)) scale(1)}}

/* ── red pencil ───────────────────────────────────────────── */
.pencil{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:6}
.pencil path{fill:none;stroke:var(--red);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;filter:url(#pencil-grain)}
.night .pencil path,.pencil.bright path{stroke:var(--red-bright)}
.pencil .note{font:italic 500 19px/1.2 var(--text);fill:var(--red)}
.night .pencil .note,.pencil.bright .note{fill:var(--red-bright)}
.pencil-note{position:absolute;z-index:7;font:italic 500 17px/1.25 var(--text);color:var(--red);max-width:17ch;pointer-events:none;opacity:0;transition:opacity .5s var(--ease-out)}
.night .pencil-note{color:#ff8a7e}
.pencil-note.shown{opacity:1}

/* ── paper documents laid on the desk ─────────────────────── */
.doc{position:absolute;background:var(--card);color:var(--ink);box-shadow:var(--shadow-paper);transform:translate(var(--dx,0),var(--dy,0)) rotate(var(--rot,0deg));transition:transform .5s var(--ease-out),box-shadow .5s var(--ease-out)}
.doc img{width:100%;height:100%;object-fit:cover;filter:sepia(.18) contrast(1.04)}
a.doc{text-decoration:none}
a.doc:hover{transform:translate(var(--dx,0),calc(var(--dy,0) - 6px)) rotate(var(--rot,0deg));box-shadow:var(--shadow-lift)}
.doc-cap{position:absolute;left:0;top:calc(100% + 10px);font:italic 400 14px/1.3 var(--text);color:var(--on-night-2);white-space:nowrap}

/* ── footer ───────────────────────────────────────────────── */
.foot{background:var(--night-2);color:var(--on-night-2);position:relative;isolation:isolate;overflow:hidden}
.foot::before{content:"";position:absolute;inset:0;z-index:-1;background-image:var(--grain);opacity:.06;mix-blend-mode:screen}
.foot-in{max-width:var(--max);margin:0 auto;padding:88px var(--gutter) 40px}
.foot-top{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:48px;padding-bottom:64px;border-bottom:1px solid rgba(238,235,227,.14)}
.foot .mark-name{font-size:44px;color:var(--on-night)}
.foot-about{margin-top:18px;max-width:38ch;font-size:16px;line-height:1.55}
.foot h2{font:italic 400 16px/1.2 var(--text);color:var(--on-night);margin:0 0 16px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:0 0 9px;font-size:16px}
.foot a{text-decoration:none;color:var(--on-night-2)}
.foot a:hover{color:var(--on-night);text-decoration:underline;text-decoration-color:var(--red-bright)}
.foot-base{display:flex;justify-content:space-between;gap:24px;padding-top:26px;font-size:14px;color:var(--on-night-3)}
.foot-sky{position:absolute;right:-2vw;bottom:-6vw;font:italic 500 clamp(160px,22vw,340px)/1 var(--display);color:rgba(238,235,227,.035);letter-spacing:-.04em;z-index:-1;pointer-events:none;white-space:nowrap}

/* ── reveal on arrival (one time) ─────────────────────────── */
.js [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.js [data-reveal].in{opacity:1;transform:none}
.js [data-reveal-line]{clip-path:inset(0 0 100% 0);transform:translateY(.25em);transition:clip-path 1s var(--ease-out),transform 1s var(--ease-out)}
.js [data-reveal-line].in{clip-path:inset(-10% -5% -20% -5%);transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js [data-reveal],.js [data-reveal-line]{opacity:1;transform:none;clip-path:none}
  .stamp[data-land]{opacity:1}
}

@media (max-width:1100px){
  .foot-top{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .mast-in{flex-wrap:wrap;gap:12px}
  .mast nav{gap:16px;font-size:16px;flex-wrap:wrap}
  .mark-tag{display:none}
  .foot-top{grid-template-columns:1fr}
  .foot-base{flex-direction:column}
}
@media print{
  .night,.foot{background:#fff!important;color:#000!important}
  .mast nav,.pencil,.foot-sky{display:none}
}

/* ── the method card: the same four steps on every study page ── */
.method-card{background:var(--paper);color:var(--ink);border-top:1.5px solid var(--ink);border-bottom:1px solid var(--paper-3);position:relative}
.method-card .mc-in{max-width:var(--max);margin:0 auto;padding:clamp(40px,4.4vw,64px) var(--gutter) clamp(44px,4.8vw,68px)}
.mc-head{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 22px;margin:0 0 30px}
.mc-kicker{font:italic 400 16px/1.3 var(--text);color:var(--red-ink);margin:0;flex-basis:100%}
.mc-title{font:500 clamp(30px,2.8vw,42px)/1.05 var(--display);letter-spacing:-.012em;margin:0}
.mc-link{font:italic 400 16px var(--text);text-decoration-color:var(--red)}
.mc-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(22px,2.6vw,40px)}
.mc-step{position:relative;padding-top:6px;border-top:1px solid var(--rule-blue)}
.mc-n{display:block;font:italic 500 54px/.9 var(--display);color:var(--red);margin:14px 0 10px}
.mc-step h3{font:600 21px/1.2 var(--display);margin:0 0 10px}
.mc-sub{font-size:15.5px;line-height:1.5;color:var(--ink-2);margin:0 0 12px}
.mc-list,.mc-gaps,.mc-verdicts{list-style:none;margin:0;padding:0}
.mc-list li{font-size:15px;line-height:1.5;padding:9px 0;border-top:1px dotted var(--rule-blue)}
.mc-list li:first-child{border-top:0;padding-top:0}
.mc-list q{font-style:italic;quotes:"“" "”"}
.mc-list b{font-weight:600}
.mc-list b a{text-decoration-color:var(--red)}
.mc-src{display:block;font-size:13.5px;line-height:1.4;color:var(--ink-3);margin-top:3px}
.mc-src a{color:inherit}
.mc-none{color:var(--ink-3);font-style:italic}
.mc-gap-h{font:italic 400 14px/1.3 var(--text);color:var(--red-ink);margin:14px 0 4px}
.mc-gaps li{font-size:14px;line-height:1.45;color:var(--ink-2);padding:4px 0 4px 14px;position:relative}
.mc-gaps li::before{content:"";position:absolute;left:0;top:.8em;width:8px;height:1.5px;background:var(--red)}
.mc-tests li{font-size:14.5px}
.mc-verdicts li{display:grid;grid-template-columns:auto;gap:6px;padding:10px 0;border-top:1px dotted var(--rule-blue);font-size:15px;line-height:1.45}
.mc-verdicts li:first-child{border-top:0;padding-top:2px}
.mc-verdicts .stamp{justify-self:start;font-size:11.5px;--rot:-2deg;padding:5px 8px 4px}
.mc-limits{margin:34px 0 0;padding-top:16px;border-top:1px dotted var(--rule-blue);font-size:15px;line-height:1.55;color:var(--ink-2);max-width:120ch}
.mc-limits b{color:var(--ink)}
@media (max-width:1100px){.mc-steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.mc-steps{grid-template-columns:1fr}}
@media print{.method-card{break-inside:avoid}}
/* The four steps, written out (method page) */
.method-steps{list-style:none;counter-reset:ms;margin:0 0 22px;padding:0}
.method-steps li{counter-increment:ms;position:relative;padding:0 0 20px 62px;font-size:18px;line-height:1.55}
.method-steps li::before{content:counter(ms);position:absolute;left:0;top:-6px;font:italic 500 44px/1 var(--display);color:var(--red)}
.method-steps b{font-weight:600}

/* Bodoni Moda thins its hairlines as the optical size rises; at heading sizes on paper or night
   the high settings lose commas, hyphens and the strokes of 4, A and N. Keep the sizes sturdy. */
.h-m,.mc-title{font-variation-settings:"opsz" 28}
.mc-n{font-weight:600;font-variation-settings:"opsz" 24}
.mark-tag{opacity:.9}

/* Long verdict labels wrap inside their card instead of running past it. */
.stamp{white-space:normal;max-width:100%;line-height:1.2}
.nw{white-space:nowrap}