/* PrimeMind site shell — used by index/branches/paper/methods/archive only.
   Lab pages never load this file; they get only the shadow-DOM header. */

@font-face{font-family:'PM Spectral';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/Spectral-400-normal.woff2) format('woff2')}
@font-face{font-family:'PM Spectral';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/Spectral-500-normal.woff2) format('woff2')}
@font-face{font-family:'PM Spectral';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/Spectral-600-normal.woff2) format('woff2')}
@font-face{font-family:'PM Spectral';font-style:italic;font-weight:400;font-display:swap;src:url(fonts/Spectral-400-italic.woff2) format('woff2')}
@font-face{font-family:'PM Spectral';font-style:italic;font-weight:500;font-display:swap;src:url(fonts/Spectral-500-italic.woff2) format('woff2')}
@font-face{font-family:'PM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/IBMPlexMono-400-normal.woff2) format('woff2')}
@font-face{font-family:'PM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/IBMPlexMono-500-normal.woff2) format('woff2')}

:root{
  color-scheme:dark;
  --bg:#07111a;
  --panel:#0c1823;
  --panel-2:#101f2c;
  --line:#263a49;
  --line-soft:#1b2c3a;
  --ink:#eef6fb;
  --ink-2:#c9d8e2;
  --muted:#93a9ba;
  --exact:#5ee7ef;
  --empirical:#ffcb6b;
  --open:#c6a0ff;
  --serif:'PM Spectral',Georgia,'Times New Roman',serif;
  --mono:'PM Plex Mono',Consolas,'Liberation Mono',monospace;
  --measure:64ch;
}

*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg)}
body{
  margin:0;
  color:var(--ink);
  background:var(--bg);
  font:17px/1.6 var(--serif);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--exact);text-decoration:none;border-bottom:1px solid rgba(94,231,239,.35)}
a:hover{border-bottom-color:var(--exact)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--exact);outline-offset:2px}
code,kbd,.mono{font-family:var(--mono);font-size:.88em}
code{color:#d7e5ee;background:rgba(255,255,255,.04);padding:.05em .35em;border-radius:3px}
h1,h2,h3{font-weight:500;line-height:1.15;margin:0}
h1{font-size:clamp(34px,4.6vw,50px);letter-spacing:-.01em}
h2{font-size:27px;margin-bottom:.35em}
h3{font-size:20px}
p{margin:0 0 1em;max-width:var(--measure)}
ul,ol{max-width:var(--measure);padding-left:1.3em}
li{margin:.25em 0}
hr{border:0;border-top:1px solid var(--line);margin:0}
.muted{color:var(--muted)}
.serif-num{font-variant-numeric:tabular-nums}

.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
main.wrap{padding-bottom:64px}
section{padding:44px 0}
section+section{border-top:1px solid var(--line-soft)}
.section-head{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;margin-bottom:18px}
.section-head p{margin:0;color:var(--muted)}

/* Status marks: the one visual code used across the whole site.
   cyan = exact · amber = empirical · violet = open */
.marks{display:inline-flex;gap:12px;align-items:center;font-size:14px;color:var(--ink-2);white-space:nowrap}
.marks i{display:inline-flex;align-items:center;gap:6px;font-style:normal}
.marks i::before{content:"";width:10px;height:10px;border-radius:2px;background:var(--c)}
.marks .exact{--c:var(--exact)}
.marks .empirical{--c:var(--empirical)}
.marks .open{--c:var(--open)}

/* ---------- hero ---------- */
.hero{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
  padding:56px 0 48px;
}
.hero h1{max-width:18ch;margin-bottom:22px}
.hero .lede{font-size:19px;color:var(--ink-2)}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.btn{
  display:inline-block;padding:11px 18px;border-radius:5px;border:1px solid var(--line);
  color:var(--ink);background:var(--panel);font-size:16px;line-height:1.2;cursor:pointer;font-family:inherit;
}
.btn:hover{border-color:#3d5568;background:var(--panel-2)}
.btn.primary{background:var(--exact);color:#04222a;border-color:var(--exact);font-weight:500}
.btn.primary:hover{background:#8bf0f5;border-color:#8bf0f5}

/* ---------- fingerprint figure ---------- */
.figure{
  border:1px solid var(--line);
  border-radius:8px;
  background:linear-gradient(180deg,var(--panel) 0%,#0a1520 100%);
  padding:20px 20px 14px;
}
.figure .top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.figure .top label{color:var(--muted);font-size:15px}
.figure input[type=number]{
  width:150px;font:17px/1.2 var(--mono);color:var(--ink);background:#06101a;border:1px solid var(--line);
  border-radius:4px;padding:7px 10px;-moz-appearance:textfield;appearance:textfield;
}
.figure input::-webkit-outer-spin-button,.figure input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.figure .step{
  font:15px/1 var(--mono);color:var(--ink);background:var(--panel-2);border:1px solid var(--line);
  border-radius:4px;padding:8px 11px;cursor:pointer;
}
.figure .step:hover{border-color:#3d5568}
.figure svg{display:block;width:100%;height:auto}
.figure .readout{font-size:15px;color:var(--ink-2);margin:10px 0 0;line-height:1.55;min-height:3.1em}
.figure .readout b{font-weight:500;color:var(--ink)}
.figure .readout .eq{font-family:var(--mono);font-size:14.5px;color:#d7e5ee}
.figure .cap{font-size:13.5px;color:var(--muted);margin:10px 0 0;font-style:italic}
.figure .err{color:var(--empirical)}

/* ---------- legend ---------- */
.legend{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.legend > div{border-left:3px solid var(--c);padding:2px 0 2px 16px}
.legend h3{font-size:18px;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.legend h3::after{content:"";width:10px;height:10px;border-radius:2px;background:var(--c)}
.legend ul{padding-left:1.1em;margin:0;font-size:15.5px;color:var(--ink-2)}
.legend p{margin:0 0 6px;font-size:15.5px;color:var(--ink-2)}
.legend .exact{--c:var(--exact)}
.legend .empirical{--c:var(--empirical)}
.legend .open{--c:var(--open)}

/* ---------- lab list ---------- */
.labs{list-style:none;padding:0;margin:0;max-width:none}
.labs li{
  display:grid;grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:28px;
  padding:26px 0;border-top:1px solid var(--line-soft);margin:0;
}
.labs li:last-child{border-bottom:1px solid var(--line-soft)}
.labs h3{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.labs h3 .ver{font:13.5px/1 var(--mono);color:var(--muted)}
.labs h3 a{border:0;color:var(--ink)}
.labs h3 a:hover{color:var(--exact)}
.labs p{margin:0 0 8px;color:var(--ink-2);font-size:16px}
.labs .side{font-size:15px;color:var(--ink-2)}
.labs .side p{font-size:15px}
.labs .side .marks{display:flex;margin-bottom:10px}
.labs .go{display:inline-flex;gap:14px;align-items:baseline;flex-wrap:wrap;margin-top:6px}
.labs .go a.dl{color:var(--muted);border-bottom-color:rgba(147,169,186,.35);font-size:14.5px}
.labs .go a.dl:hover{color:var(--ink-2)}
.labs .go a.dl code{background:none;padding:0;color:inherit}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.tag{font-size:13.5px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 10px}

/* ---------- paper / downloads ---------- */
.files{list-style:none;padding:0;margin:0;max-width:none;border-top:1px solid var(--line-soft)}
.files li{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr) auto;gap:20px;padding:14px 0;border-bottom:1px solid var(--line-soft);margin:0;align-items:baseline}
.files li > span:first-child{font-weight:500}
.files code{font-size:13.5px;color:var(--muted);background:none;padding:0;word-break:break-all}
.files .size{font-family:var(--mono);font-size:13.5px;color:var(--muted);white-space:nowrap}
table{border-collapse:collapse;width:100%;font-size:15.5px}
th,td{text-align:left;padding:9px 12px 9px 0;border-bottom:1px solid var(--line-soft);vertical-align:top}
th{font-weight:500;color:var(--muted);font-size:14px}
td code{font-size:13px}
dl{max-width:var(--measure)}
dt{font-weight:500;margin-top:.7em}
dd{margin:0 0 .3em;color:var(--ink-2)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.callout{border:1px solid var(--line);border-left:3px solid var(--empirical);border-radius:6px;padding:14px 18px;max-width:var(--measure);font-size:15.5px;color:var(--ink-2)}
.callout p:last-child{margin-bottom:0}
.check{list-style:none;padding:0;margin:0;max-width:var(--measure)}
.check li{display:flex;gap:10px;align-items:flex-start;padding:7px 0;border-bottom:1px solid var(--line-soft)}
.check input{margin-top:.35em;accent-color:var(--exact)}

footer.site{border-top:1px solid var(--line);color:var(--muted);font-size:14px;padding:26px 0 40px}
footer.site .wrap{display:flex;gap:22px;flex-wrap:wrap;justify-content:space-between}
footer.site a{color:var(--ink-2);border-bottom-color:rgba(201,216,226,.3)}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:34px;padding-top:36px}
  .figure input[type=number]{width:110px}
  .legend{grid-template-columns:1fr;gap:18px}
  .labs li{grid-template-columns:1fr;gap:10px}
  .two{grid-template-columns:1fr;gap:24px}
  .files li{grid-template-columns:1fr;gap:4px}
}
@media (prefers-reduced-motion:no-preference){
  .figure rect.cell{transition:fill .18s ease,fill-opacity .18s ease}
}


/* ---- site v0.2: home and labs pages ---- */
.eyebrow{font:12.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--exact);margin:0 0 10px}
.hero-home{align-items:start}
.hero-side{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px 24px;align-self:center}
.hero-side p{font-size:16.5px;color:var(--ink-2);margin:0}
.hero-side p + p{margin-top:0}
.start{list-style:none;counter-reset:step;padding:0;margin:0;max-width:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.start li{counter-increment:step;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 20px 16px 58px;position:relative}
.start li::before{content:counter(step);position:absolute;left:18px;top:16px;width:28px;height:28px;border-radius:50%;border:1px solid var(--exact);color:var(--exact);font:500 14px/26px var(--mono);text-align:center}
.start li a{font-size:19px;border:0;color:var(--ink)}
.start li a:hover{color:var(--exact)}
.start li p{margin:6px 0 0;font-size:15.5px;color:var(--ink-2)}
.groups{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.group{display:block;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px 22px;color:var(--ink);border-bottom:1px solid var(--line)}
.group:hover{border-color:#3d5568;background:var(--panel-2)}
.group h3{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.group .count{font:13px/1 var(--mono);color:var(--muted)}
.group p{margin:0 0 8px;font-size:15.5px;color:var(--ink-2)}
.group .eg{color:var(--muted);font-style:italic;margin:0}
.page-head{padding-bottom:10px}
.page-head .lede{font-size:18px;color:var(--ink-2);max-width:80ch}
.labs.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px;border:0}
.labs.cards li{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin:0}
.labs.cards li:last-child{border-bottom:1px solid var(--line)}
.labs.cards h3{font-size:19px;margin-bottom:8px}
.labs.cards p{flex:1 1 auto;font-size:15.5px}
.labs.cards .go{margin-top:12px}
.btn.small{padding:7px 14px;font-size:14.5px}
footer.site{border-top:1px solid var(--line);padding:22px 0 40px;color:var(--muted);font-size:14px}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:6px 10px}
footer.site a{color:var(--muted);border-bottom-color:rgba(147,169,186,.35)}
footer.site a:hover{color:var(--ink-2)}
@media (max-width:760px){.hero-home{grid-template-columns:1fr}}
.tablewrap,table{max-width:100%}
@media (max-width:700px){table{display:block;overflow-x:auto}}