/* ============================================================================
   field notes · shared sheet · studio 3.0 "lab notebook"
   hairlines, mono marginalia, generative sigils. no glass. no pills.
   ============================================================================ */
:root{
  --bg:#070a12;--ink:#eef3fa;
  --gold:#C8A96E;--cyan:#1e96d2;--blue:#286ef0;--blue-l:#5b91ff;
  --w92:rgba(238,243,250,.92);--w70:rgba(238,243,250,.70);--w50:rgba(238,243,250,.50);
  --w35:rgba(238,243,250,.35);--w18:rgba(238,243,250,.18);
  --line:rgba(150,180,220,.10);--line2:rgba(150,180,220,.18);
  --body:'Hanken Grotesk',system-ui,sans-serif;
  --serif:'Cormorant Garamond',Georgia,serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --mark:'Plus Jakarta Sans',sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);--easeout:cubic-bezier(.16,1,.3,1);
  --gutter:clamp(1.1rem,5vw,4.5rem);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--w70);font-family:var(--body);font-weight:300;
  line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit;text-decoration:none}
::selection{background:rgba(200,169,110,.28);color:#fff}
:focus-visible{outline:1.5px solid var(--gold);outline-offset:4px;border-radius:2px}

/* ---------- reading progress ---------- */
.prog{position:fixed;top:0;left:0;right:0;height:2px;z-index:60;pointer-events:none}
.prog i{display:block;height:100%;background:linear-gradient(90deg,var(--blue-l),var(--gold));
  transform:scaleX(0);transform-origin:left;transition:transform .12s linear}

/* ---------- chrome ---------- */
.mast{display:flex;justify-content:space-between;align-items:center;
  padding:1.5rem var(--gutter);border-bottom:.5px solid var(--line)}
.wordmark{font-family:var(--mark);font-weight:800;font-size:1.15rem;letter-spacing:-.03em;
  color:var(--ink);text-transform:lowercase}
.wordmark .dot{color:var(--blue)}
.mnav{display:flex;gap:clamp(.9rem,2.4vw,1.6rem);font-family:var(--mono);
  font-size:10px;letter-spacing:.16em;text-transform:lowercase}
.mnav a{color:var(--w35);transition:color .3s var(--ease)}
.mnav a:hover{color:var(--ink)}
.mnav a.here{color:var(--gold)}
.foot{border-top:.5px solid var(--line);padding:2.2rem var(--gutter);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:lowercase;color:var(--w35)}
.foot a{color:var(--w50)}
.foot a:hover{color:var(--ink)}

/* ---------- shared bits ---------- */
.eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:lowercase;
  color:var(--w35);display:flex;align-items:center;gap:.75rem;margin-bottom:1.6rem}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
h1 .it,h2 .it{font-family:var(--serif);font-style:italic;font-weight:500;color:var(--gold)}

/* ---------- index ---------- */
.wrap{max-width:1060px;margin:0 auto;padding:clamp(3.4rem,9vh,6.5rem) var(--gutter) 4rem}
.idx-head h1{font-weight:800;font-size:clamp(2.6rem,6vw,4.6rem);line-height:1.02;
  letter-spacing:-.045em;color:var(--ink);text-transform:lowercase;margin-bottom:1.2rem}
.idx-head .sub{font-size:clamp(.98rem,1.4vw,1.08rem);line-height:1.7;color:var(--w50);
  font-weight:300;max-width:52ch;margin-bottom:clamp(2.6rem,6vh,4rem)}

/* ---------- index: stacked cards, two across ---------- */
.cards{display:grid;grid-template-columns:1fr 1fr;
  border-top:.5px solid var(--line);border-left:.5px solid var(--line)}
.card{position:relative;display:block;overflow:hidden;
  padding:clamp(1.7rem,3.2vw,2.4rem);
  border-right:.5px solid var(--line);border-bottom:.5px solid var(--line);
  transition:background .5s var(--ease)}
.card:hover{background:rgba(150,180,220,.028)}
.card .sig{position:absolute;top:1.1rem;right:1.1rem;width:52px;height:52px;
  opacity:.45;transition:opacity .5s var(--ease)}
.card:hover .sig{opacity:1}
.card .rmeta{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  text-transform:lowercase;color:var(--w35);margin-bottom:1.1rem}
.card .rmeta b{font-weight:500;color:var(--w50)}
.card .rt{display:block;font-weight:700;font-size:clamp(1.2rem,2vw,1.5rem);
  letter-spacing:-.025em;line-height:1.12;color:var(--ink);text-transform:lowercase;
  margin-bottom:.7rem;max-width:16ch;transition:color .4s var(--ease)}
.card:hover .rt{color:#fff}
.card .rd{display:block;font-weight:300;font-size:.9rem;line-height:1.65;color:var(--w50);
  max-width:44ch}
@media (max-width:760px){
  .cards{grid-template-columns:1fr}
  .card .rt{max-width:none}
}

/* ---------- article: next-note row (single ledger line) ---------- */
.ledger{border-top:.5px solid var(--line)}
.row{position:relative;display:grid;grid-template-columns:130px minmax(0,1fr) 84px;
  gap:clamp(1rem,3vw,2.4rem);align-items:center;
  padding:clamp(1.5rem,3.4vw,2.2rem) 0 clamp(1.5rem,3.4vw,2.2rem) clamp(.9rem,2vw,1.4rem);
  border-bottom:.5px solid var(--line);transition:padding-left .5s var(--ease)}
.row::before{content:"";position:absolute;left:0;top:.8rem;bottom:.8rem;width:1px;
  background:linear-gradient(180deg,var(--blue-l),var(--cyan));
  transform:scaleY(0);transform-origin:top;transition:transform .5s var(--ease)}
.row:hover{padding-left:clamp(1.3rem,2.8vw,2rem)}
.row:hover::before{transform:scaleY(1)}
.row .rmeta{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;line-height:1.9;
  text-transform:lowercase;color:var(--w35)}
.row .rmeta b{display:block;font-weight:500;color:var(--w50)}
.row .rt{display:block;font-weight:700;font-size:clamp(1.25rem,2.6vw,1.85rem);
  letter-spacing:-.03em;line-height:1.08;color:var(--ink);text-transform:lowercase;
  margin-bottom:.55rem;transition:color .4s var(--ease)}
.row:hover .rt{color:#fff}
.row .rd{display:block;font-weight:300;font-size:.92rem;line-height:1.62;
  color:var(--w50);max-width:56ch}
.row .sig{width:56px;height:56px;justify-self:end;opacity:.5;
  transition:opacity .5s var(--ease)}
.row:hover .sig{opacity:1}
@media (max-width:760px){
  .row{grid-template-columns:minmax(0,1fr) 64px}
  .row .rmeta{grid-column:1 / -1;display:flex;gap:1rem}
  .row .rmeta b{display:inline}
  .row .sig{width:44px;height:44px}
}

/* ---------- article ---------- */
.awrap{position:relative;max-width:44rem;margin:0 auto;
  padding:clamp(3.2rem,9vh,6rem) var(--gutter) 4rem}
.ahead{position:relative;padding:clamp(1.2rem,4vh,3rem) 0 2.2rem;margin-bottom:2.6rem;
  border-bottom:.5px solid var(--line)}
.ahead .amb{position:absolute;inset:-2rem calc(-1 * var(--gutter)) 0;z-index:0;
  opacity:.5;pointer-events:none;
  -webkit-mask-image:linear-gradient(180deg,#000 30%,transparent 96%);
  mask-image:linear-gradient(180deg,#000 30%,transparent 96%)}
.ahead .amb canvas{width:100%;height:100%;display:block}
.ahead > *{position:relative;z-index:1}
.ahead .amb{z-index:0}
.ahead h1{font-weight:800;font-size:clamp(2.4rem,5.5vw,3.6rem);line-height:1.03;
  letter-spacing:-.045em;color:var(--ink);text-transform:lowercase;margin-bottom:1.3rem}
.lede{font-size:clamp(1.04rem,1.6vw,1.2rem);line-height:1.72;color:var(--w70);font-weight:300}

article h2{font-weight:700;font-size:clamp(1.3rem,2.6vw,1.65rem);color:var(--ink);
  text-transform:lowercase;letter-spacing:-.02em;margin:3.2rem 0 1.1rem}
article p{font-size:1rem;line-height:1.78;color:var(--w70);font-weight:300;margin-bottom:1.15rem}
article p b,article li b{color:var(--ink);font-weight:500}
article a{color:var(--cyan);border-bottom:.5px solid rgba(30,150,210,.35)}
article a:hover{color:var(--ink);border-color:var(--ink)}
article ul{margin:0 0 1.4rem;list-style:none;display:flex;flex-direction:column;gap:.7rem}
article li{font-size:1rem;line-height:1.7;color:var(--w70);font-weight:300;
  padding-left:1.4rem;position:relative}
article li::before{content:"";position:absolute;left:0;top:.68em;width:10px;height:1px;background:var(--gold)}

/* pull-quote: lifted sentence, cormorant, hairline rule */
.pq{font-family:var(--serif);font-style:italic;font-weight:500;
  font-size:clamp(1.5rem,3vw,2.05rem);line-height:1.32;color:rgba(200,169,110,.92);
  border-left:1px solid var(--gold);padding:.4rem 0 .4rem 1.4rem;
  margin:2.8rem 0;max-width:26ch}

/* marginalia: colleague notes in the gutter >=1240px, inline asides below */
.marg{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;
  line-height:1.8;text-transform:lowercase;color:var(--w35);
  border-left:1px solid var(--line2);padding-left:.9rem;margin:.4rem 0 1.4rem}
.marg b{color:var(--gold);font-weight:500}
@media (min-width:1240px){
  .marg{position:absolute;right:-15.5rem;width:12.5rem;margin:0;
    padding-top:.15rem;border-left-color:rgba(200,169,110,.35)}
}

/* next note + cta */
.next{margin-top:3.6rem}
.next .nlbl{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:lowercase;color:var(--w35);margin-bottom:.4rem}
.cta{margin-top:3rem;padding-top:2.2rem;border-top:.5px solid var(--line)}
.cta p{color:var(--w70);margin-bottom:1.4rem;max-width:52ch}
.cta .acts{display:flex;gap:1.1rem;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;gap:.6rem;padding:.8rem 1.35rem;
  background:none;cursor:pointer;
  border:.5px solid var(--line2);border-radius:3px;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:lowercase;
  color:var(--ink);transition:border-color .35s var(--ease),color .35s var(--ease),padding .35s var(--ease)}
.btn i{font-style:normal;color:var(--gold);transition:transform .35s var(--ease)}
.btn:hover{border-color:var(--gold)}
.btn:hover i{transform:translate(2px,-2px)}
.btn.ghost{color:var(--w50)}
.btn.ghost:hover{color:var(--ink)}
.crosslinks{margin-top:2.6rem;padding-top:1.6rem;border-top:.5px solid var(--line);
  display:flex;flex-direction:column;gap:.55rem}
.crosslinks .lbl{font-family:var(--mono);font-size:9px;letter-spacing:.18em;
  text-transform:lowercase;color:var(--w35);margin-bottom:.3rem}
.crosslinks a{font-size:.92rem;color:var(--cyan);width:max-content;
  border-bottom:.5px solid transparent;transition:color .3s var(--ease)}
.crosslinks a:hover{color:var(--ink)}

/* ---------- inline brief modal ---------- */
.bveil{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;
  padding:1.2rem;background:rgba(4,6,12,.72);
  opacity:0;pointer-events:none;transition:opacity .4s var(--ease)}
.bveil.on{opacity:1;pointer-events:auto}
.bmodal{width:min(560px,100%);background:var(--bg);border:.5px solid var(--line2);
  padding:clamp(1.6rem,4vw,2.6rem);position:relative;
  transform:translateY(14px);transition:transform .45s var(--easeout)}
.bveil.on .bmodal{transform:none}
.bmodal .beyebrow{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:lowercase;color:var(--gold);margin-bottom:1rem}
.bmodal h3{font-weight:800;font-size:clamp(1.4rem,3vw,1.9rem);letter-spacing:-.03em;
  line-height:1.05;color:var(--ink);text-transform:lowercase;margin-bottom:.6rem}
.bmodal h3 .it{font-family:var(--serif);font-style:italic;font-weight:500;color:var(--gold)}
.bmodal .bsub{font-size:.9rem;line-height:1.6;color:var(--w50);margin-bottom:1.6rem}
.bmodal .bclose{position:absolute;top:1rem;right:1rem;background:none;border:0;
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--w35);
  cursor:pointer;padding:.4rem;text-transform:lowercase}
.bmodal .bclose:hover{color:var(--ink)}
.bmodal .hp{position:absolute;left:-9999px;top:-9999px}
.bfields{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem 1.2rem;margin-bottom:1.5rem}
.bfields .fl{display:flex;flex-direction:column;gap:.5rem}
.bfields .fl.full{grid-column:1 / -1}
.bfields .fl span{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;
  text-transform:lowercase;color:var(--w35)}
.bfields input,.bfields textarea{background:none;border:0;border-bottom:.5px solid var(--line2);
  border-radius:0;padding:.55rem 0;color:var(--ink);font-family:var(--body);font-weight:300;
  font-size:.98rem;outline:none;resize:vertical;transition:border-color .35s var(--ease)}
.bfields input:focus,.bfields textarea:focus{border-bottom-color:var(--gold)}
.bfields textarea::placeholder{color:var(--w35)}
.bacts{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}
.bsent{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--gold)}
@media (max-width:560px){.bfields{grid-template-columns:1fr}}

/* ---------- reveals ---------- */
[data-r]{opacity:0;transform:translateY(12px);
  transition:opacity .9s var(--easeout),transform .9s var(--easeout)}
[data-r].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  [data-r]{opacity:1;transform:none;transition:none}
  .row,.row::before,.btn,.btn i,.mnav a{transition:none}
  .prog i{transition:none}
}