/* Flymagotchi — the page is a document; every simulation is a dark instrument
   set into it, framed like a dark-field figure in a paper. */

:root{
  --paper:#f3f5f7;
  --paper-2:#eaeef2;
  --ink:#0e1116;
  --ink-2:#4a5561;
  --rule:#ccd5dd;
  --instrument:#07080f;

  /* data colours, straight from how connectomes are rendered */
  --exc:#22b8cf;
  --inh:#e64980;
  --mn9:#f59f00;
  --sugar:#37b24d;

  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --prose:"Source Serif 4",Georgia,serif;
  --data:"IBM Plex Mono",ui-monospace,Menlo,monospace;

  --col:min(100% - 2.5rem, 68rem);
  --read:min(100% - 2.5rem, 40rem);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} *{animation:none!important;transition:none!important} }

body{
  margin:0;background:var(--paper);color:var(--ink);
  font:400 17.5px/1.65 var(--prose);
  -webkit-font-smoothing:antialiased;
}
.wrap{width:var(--col);margin-inline:auto}
.read{width:var(--read);margin-inline:auto}

/* ---------- masthead ---------- */
.top{
  border-bottom:1px solid var(--rule);position:sticky;top:0;z-index:20;
  background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(8px);
}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:56px}
.brand{font:600 13px/1 var(--data);letter-spacing:.14em;text-transform:uppercase}
.brand i{color:var(--mn9);font-style:normal}
.top nav{display:flex;gap:1.4rem;align-items:center}
.top a{font:500 13px/1 var(--data);color:var(--ink-2);text-decoration:none;letter-spacing:.02em}
.top a:hover{color:var(--ink)}
.top a.btn{
  background:var(--ink);color:var(--paper);padding:.6rem .9rem;border-radius:2px;
  letter-spacing:.06em;text-transform:uppercase;font-size:11.5px
}
.top a.btn:hover{background:#000;color:#fff}

/* ---------- hero ---------- */
.hero{padding:clamp(3rem,8vw,6.5rem) 0 2.5rem}
.eyebrow{
  font:500 12px/1 var(--data);letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-2);margin:0 0 1.4rem
}
h1{
  font:700 clamp(2.6rem,7.2vw,5.1rem)/0.98 var(--display);
  font-stretch:115%;letter-spacing:-.022em;margin:0 0 1.5rem;max-width:16ch;
}
h1 em{font-style:normal;color:var(--mn9)}
.lede{font-size:clamp(1.05rem,1.9vw,1.28rem);line-height:1.55;color:var(--ink-2);max-width:52ch;margin:0}

/* ---------- the instrument: a dark figure inset in the paper ---------- */
.fig{margin:2.6rem 0 0}
.fig-body{
  background:var(--instrument);border:1px solid var(--ink);border-radius:3px;
  overflow:hidden;position:relative;
}
.fig-cap{
  display:flex;gap:.9rem;align-items:baseline;margin-top:.7rem;
  font:400 12.5px/1.5 var(--data);color:var(--ink-2)
}
.fig-cap b{color:var(--ink);font-weight:600;white-space:nowrap;letter-spacing:.04em}
.fig-cap span{max-width:62ch}

.stage{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:0}
@media (max-width:720px){ .stage{grid-template-columns:1fr} }
.stage canvas{display:block;width:100%}
#fly{height:300px;background:radial-gradient(circle at 50% 44%,#161c2e 0%,#07080f 72%)}
.side{border-left:1px solid #1a2130;padding:16px 18px;display:flex;flex-direction:column;gap:14px}
@media (max-width:720px){ .side{border-left:0;border-top:1px solid #1a2130} }
#net{height:190px;background:#080a13;border:1px solid #161d2c;border-radius:2px;cursor:crosshair}

.readout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px}
.ro{display:flex;flex-direction:column;gap:2px}
.ro b{font:600 22px/1 var(--data);color:#e9edf4;letter-spacing:-.01em}
.ro span{font:400 10.5px/1 var(--data);letter-spacing:.12em;text-transform:uppercase;color:#66748a}
.ro.exc b{color:var(--exc)} .ro.inh b{color:var(--inh)} .ro.mn9 b{color:var(--mn9)}

.feed{
  appearance:none;border:0;width:100%;padding:12px;cursor:pointer;border-radius:2px;
  background:var(--mn9);color:#241800;font:600 13px/1 var(--data);
  letter-spacing:.1em;text-transform:uppercase;
}
.feed:active{transform:translateY(1px)}
.hint{font:400 11.5px/1.5 var(--data);color:#66748a;margin:0}
.hint em{color:#8fa0b6;font-style:normal}

/* ---------- measurement strip ---------- */
.strip{border-block:1px solid var(--rule);margin-top:3.4rem;background:var(--paper-2)}
.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
@media (max-width:720px){ .strip .wrap{grid-template-columns:repeat(2,1fr)} }
.m{padding:1.5rem 0;border-left:1px solid var(--rule);padding-left:1.3rem}
.m:first-child{border-left:0;padding-left:0}
@media (max-width:720px){ .m:nth-child(3){border-left:0;padding-left:0} }
.m b{display:block;font:600 clamp(1.35rem,3vw,1.85rem)/1 var(--data);letter-spacing:-.02em}
.m span{display:block;margin-top:.45rem;font:400 11px/1.4 var(--data);
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}

/* ---------- prose sections ---------- */
section{padding:clamp(3.2rem,7vw,5.5rem) 0}
h2{
  font:700 clamp(1.8rem,4vw,2.7rem)/1.08 var(--display);font-stretch:110%;
  letter-spacing:-.018em;margin:0 0 1.6rem;max-width:22ch
}
h3{font:600 1.02rem/1.3 var(--data);letter-spacing:.02em;margin:2.4rem 0 .7rem}
p{margin:0 0 1.15rem}
.read p:last-child{margin-bottom:0}
strong{font-weight:700}
a.link{color:var(--ink);text-underline-offset:3px;text-decoration-thickness:1px}

.eq{
  background:var(--instrument);color:#c8d3e2;border-radius:3px;padding:1.2rem 1.3rem;
  font:400 13px/1.85 var(--data);overflow-x:auto;margin:1.6rem 0;
  white-space:pre;                      /* si no, las ecuaciones se juntan en una linea */
  tab-size:2
}
.eq .c{color:#5d6b82}

table{width:100%;border-collapse:collapse;margin:1.6rem 0;font:400 14px/1.5 var(--data)}
th,td{text-align:right;padding:.62rem .5rem;border-bottom:1px solid var(--rule)}
th:first-child,td:first-child{text-align:left}
thead th{font-weight:600;font-size:11px;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-2)}
tbody tr:last-child td{border-bottom:0}

.two{display:grid;grid-template-columns:1fr 1fr;gap:2.2rem}
@media (max-width:720px){ .two{grid-template-columns:1fr;gap:1.6rem} }
.card{border-top:2px solid var(--ink);padding-top:1rem}
.card.no{border-top-color:var(--inh)}
.card h4{font:600 11.5px/1 var(--data);letter-spacing:.13em;text-transform:uppercase;margin:0 0 .9rem}
.card.no h4{color:var(--inh)}
.card ul{margin:0;padding-left:1.1rem}
.card li{margin-bottom:.5rem;font-size:16px}

ol.steps{counter-reset:s;list-style:none;margin:0;padding:0}
ol.steps li{counter-increment:s;position:relative;padding-left:2.6rem;margin-bottom:1.1rem}
ol.steps li::before{
  content:counter(s,decimal-leading-zero);position:absolute;left:0;top:.22em;
  font:600 12px/1 var(--data);color:var(--mn9);letter-spacing:.06em
}

.foot{border-top:1px solid var(--rule);padding:2.6rem 0 3.4rem;color:var(--ink-2);font-size:15px}
.foot .wrap{display:flex;flex-wrap:wrap;gap:1.6rem;justify-content:space-between}
.foot a{color:var(--ink)}
.foot .cite{max-width:46ch;font-size:13.5px;line-height:1.6}

:focus-visible{outline:2px solid var(--mn9);outline-offset:3px}

/* on a phone the section links wrap into two lines each; the one that matters stays */
@media (max-width:560px){
  .top nav a:not(.btn){display:none}
  .top .wrap{height:50px}
  h1{max-width:none}
}

/* ---------- Fig. 2 — one bite, slowed down ---------- */
.bleed{margin:0;width:100%}
.bleed .fig-body{border-radius:0;border-left:0;border-right:0;position:relative}
#slow{display:block;width:100%;height:clamp(340px,52vh,540px);background:#05060c}
.slow-hud{
  position:absolute;left:0;bottom:0;right:0;display:flex;gap:.7rem;align-items:baseline;
  padding:.75rem 1.1rem;font:500 12px/1 var(--data);letter-spacing:.1em;text-transform:uppercase;
  color:#7c8ba3;background:linear-gradient(transparent,rgba(5,6,12,.9) 55%)
}
.slow-hud #slow-t{color:var(--mn9);font-variant-numeric:tabular-nums;min-width:7ch}
.slow-hud .sep{color:#3a4558}
.bleed .fig-cap{margin-top:.8rem}

/* the anatomy needs room to read as a head */
#slow{height:clamp(380px,58vh,600px)}

/* ---------- the launch block ---------- */
.ca{background:var(--instrument);border-radius:3px;padding:1.1rem 1.2rem;margin:1.6rem 0;
  font-family:var(--data)}
.ca-row{display:flex;align-items:baseline;gap:1rem;padding:.45rem 0;font-size:13px}
.ca-row span{color:#66748a;min-width:8ch;letter-spacing:.1em;text-transform:uppercase;font-size:10.5px}
.ca-row b{color:var(--mn9);font-weight:600;font-size:17px;letter-spacing:.02em}
.ca-addr{border-top:1px solid #1a2130;margin-top:.5rem;padding-top:.8rem;flex-wrap:wrap}
.ca-addr code{color:#c8d3e2;font-size:13px;word-break:break-all;flex:1;min-width:12ch}
.ca-addr button{appearance:none;border:1px solid #2c3550;background:transparent;color:#8fa0b6;
  font:600 10.5px var(--data);letter-spacing:.1em;text-transform:uppercase;padding:.45rem .7rem;
  border-radius:2px;cursor:pointer}
.ca-addr button:hover{color:var(--paper);border-color:#4a5570}
.ca-addr button.done{color:var(--sugar);border-color:var(--sugar)}
.ca-link{display:inline-block;margin-top:.7rem;color:#8fa0b6;font-size:12px;
  letter-spacing:.04em;text-decoration:none}
.ca-link:hover{color:var(--paper)}