/* Layout: editorial app on black. Hairline rules, serif display, Courier for data. Red is the only accent;
   the brain is the one place with a color per hidden neuron. Type and motifs from pedrogomez.dev. */
:root{
  --bg:#0a0a0a; --bg-2:#101010; --surface:#151515; --line:#222222; --line-2:#333333;
  --fg:#f1f1ef; --fg-2:#a0a0a0; --fg-3:#666666; --red:#e5322d;
  --serif:Georgia,"Times New Roman",serif;
  --sans:Arial,Helvetica,sans-serif;
  --mono:"Courier New",Courier,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 var(--sans);-webkit-font-smoothing:antialiased;overflow:hidden}
::selection{background:var(--fg);color:var(--bg)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:1px solid var(--red);outline-offset:2px}
.mono{font-family:var(--mono)}
.lbl{font:500 11.5px/1.2 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--fg-3)}
.lbl b{color:var(--fg-2);font-weight:500}

#app{height:100%;display:grid;grid-template-rows:auto minmax(0,1fr)}
header.nav{display:flex;align-items:center;gap:28px;padding:18px clamp(16px,4vw,48px);border-bottom:1px solid var(--line)}
.logo{font:700 19px/1 var(--sans);letter-spacing:-.02em;display:flex;align-items:baseline;gap:10px;white-space:nowrap}
.logo i{width:7px;height:7px;background:var(--red);border-radius:50%;display:inline-block;transform:translateY(-1px)}
.logo small{font:400 12px var(--mono);color:var(--fg-3);letter-spacing:0}
nav.links{display:flex;gap:28px;margin-left:auto}
nav.links button{background:none;border:0;padding:4px 0;font:500 14.5px var(--sans);color:var(--fg-2);border-bottom:1px solid transparent;transition:color .25s,border-color .25s}
nav.links button:hover{color:var(--fg)}
nav.links button.on{color:var(--fg);border-bottom-color:var(--fg)}
.status{display:flex;align-items:center;gap:9px;font:400 12px var(--mono);color:var(--fg-3);white-space:nowrap}
.status i{width:7px;height:7px;border-radius:50%;background:var(--fg-3)}
.status.live i{background:var(--red);box-shadow:0 0 0 4px rgba(229,50,45,.16);animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.35}}

main{min-height:0;position:relative}
.tab{display:none;height:100%;min-height:0}
.tab.on{display:grid;animation:fade .45s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(4px)}}

.btn{background:none;border:1px solid var(--line-2);border-radius:40px;padding:8px 16px;font:500 13px/1.2 var(--sans);color:var(--fg);transition:border-color .2s,background .2s,color .2s,opacity .2s;white-space:nowrap}
.btn:hover{border-color:var(--fg)}
.btn:disabled{opacity:.35;cursor:not-allowed}
.btn.red{background:var(--red);border-color:var(--red);color:#fff}
.btn.red:hover{background:#f04a43;border-color:#f04a43}
.btn.on{border-color:var(--red);color:var(--red)}
.btn.sm{padding:5px 11px;font-size:12px}
.seg{display:inline-flex;border:1px solid var(--line-2);border-radius:40px;overflow:hidden}
.seg button{background:none;border:0;padding:6px 13px;font:500 12.5px var(--sans);color:var(--fg-2);transition:color .2s,background .2s}
.seg button+button{border-left:1px solid var(--line-2)}
.seg button.on{background:var(--fg);color:var(--bg)}
.note{font-size:13px;line-height:1.55;color:var(--fg-3);margin:0}
.empty{font-size:13px;color:var(--fg-3);padding:4px 2px}

/* ================= MI CEREBRO ================= */
#tab-brain{grid-template-columns:320px minmax(0,1fr) 330px}
#tab-brain>*{min-height:0}
.col{display:flex;flex-direction:column;min-height:0;overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.col.left{border-right:1px solid var(--line)}
.col.right{border-left:1px solid var(--line)}
.blk{padding:22px 22px 20px;border-bottom:1px solid var(--line);display:grid;gap:14px}
.blk:last-child{border-bottom:0}
.blk-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.blk-head .val{font:400 12px var(--mono);color:var(--fg-3)}
textarea{width:100%;resize:vertical;min-height:96px;background:var(--bg-2);border:1px solid var(--line-2);border-radius:2px;padding:12px;font:400 14px/1.55 var(--sans);color:var(--fg)}
textarea::placeholder{color:var(--fg-3)}
textarea:focus{outline:none;border-color:var(--fg-2)}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.kbd{font:400 11px var(--mono);color:var(--fg-3)}
.demo{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:12px 14px;border:1px solid var(--line-2);border-left:2px solid var(--red);font-size:12.5px;line-height:1.5;color:var(--fg-2)}
.notes{display:flex;flex-direction:column;flex:1 1 auto;min-height:120px;overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.col.left{overflow:hidden}
.bn{position:relative;padding:14px 34px 14px 22px;border-bottom:1px solid var(--line);font-size:13.5px;line-height:1.6;color:var(--fg-2);transition:background .3s}
.bn:hover{background:var(--bg-2)}
.bn .cp{color:var(--fg);border-bottom:1px solid var(--cc,var(--line-2));cursor:pointer}
.bn .cp:hover{color:var(--cc)}
.bn .meta{display:block;margin-top:5px;font:400 11px var(--mono);color:var(--fg-3)}
.bn .del{position:absolute;top:12px;right:12px;background:none;border:0;color:var(--fg-3);font-size:15px;line-height:1;padding:2px 4px}
.bn .del:hover{color:var(--red)}
.bn.flash{background:var(--bg-2);box-shadow:inset 2px 0 0 var(--red)}
.foot{padding:14px 22px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;margin-top:auto;flex:none;background:var(--bg)}
.foot .save{font:400 11.5px var(--mono);color:var(--fg-3)}
.foot .row{justify-content:flex-start;gap:8px}

.b-stage{position:relative;min-height:0;overflow:hidden}
.b-stage::before,.b-stage::after{content:"";position:absolute;left:0;right:0;z-index:1;pointer-events:none}
.b-stage::before{top:0;height:150px;background:linear-gradient(var(--bg) 35%,rgba(10,10,10,0))}
.b-stage::after{bottom:0;height:110px;background:linear-gradient(rgba(10,10,10,0),var(--bg) 70%)}
.b-stage .hud{z-index:2}
#brain{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:grab;touch-action:none}
#brain.dragging{cursor:grabbing}
.hud{position:absolute;left:0;right:0;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:22px 26px;pointer-events:none;flex-wrap:wrap}
.hud>*{pointer-events:auto}
.hud.top{top:0}.hud.bot{bottom:0;align-items:center}
.count{display:grid;gap:6px}
.count .n{font:400 30px/1 var(--serif);letter-spacing:-.03em;white-space:nowrap}
.count .n span{color:var(--fg-3);font-size:18px;letter-spacing:0;margin:0 6px}
.search input{width:min(320px,52vw);background:rgba(10,10,10,.9);border:1px solid var(--line-2);border-radius:40px;padding:10px 18px;font:400 14px var(--sans);color:var(--fg)}
.search input::placeholder{color:var(--fg-3)}
.search input:focus{outline:none;border-color:var(--fg-2)}
.state{display:flex;align-items:center;gap:9px;font:400 12px var(--mono);color:var(--fg-2)}
.state i{width:7px;height:7px;border-radius:50%;background:var(--red)}
.state.busy i{animation:blink 1s infinite}
.state.done i{background:var(--fg)}
.zoomctl{position:relative;display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:40px;background:rgba(10,10,10,.9)}
.zoomctl button{background:none;border:0;color:var(--fg);padding:6px 12px;font:400 15px/1 var(--mono);transition:color .2s}
.zoomctl button:hover{color:var(--red)}
.zoomctl #bZoomReset{font:500 12px var(--sans);border-left:1px solid var(--line-2);padding:8px 13px}
.zoomctl #bZoomVal{min-width:44px;text-align:center;font:400 11.5px var(--mono);color:var(--fg-2)}
.zhint{position:absolute;right:0;bottom:calc(100% + 8px);white-space:nowrap;background:var(--fg);color:var(--bg);border-radius:40px;padding:5px 11px;font:500 12px var(--sans);opacity:0;transform:translateY(4px);transition:opacity .25s,transform .25s;pointer-events:none}
.zhint.show{opacity:1;transform:none}
html.embed .zoomctl{margin-left:auto}
.hint{margin-left:auto;font:400 12px var(--sans);color:var(--fg-3)}

.assoc{display:grid;gap:1px}
.arow{display:grid;grid-template-columns:minmax(0,1fr) 60px 36px;gap:10px;align-items:center;padding:7px 4px;background:none;border:0;border-bottom:1px solid var(--line);text-align:left;font-size:13.5px;color:var(--fg);width:100%;transition:background .2s}
.arow:hover{background:var(--bg-2)}
.arow:last-child{border-bottom:0}
.arow .w{display:flex;align-items:center;gap:8px;min-width:0}
.arow .w>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.arow .dot{width:7px;height:7px;border-radius:50%;flex:none}
.arow .tag{font:400 10px var(--mono);color:var(--red);border:1px solid var(--red);border-radius:40px;padding:0 6px;flex:none}
.arow .bar{height:2px;background:var(--line-2)}
.arow .bar i{display:block;height:100%}
.arow .v{font:400 11.5px var(--mono);color:var(--fg-3);text-align:right}
.ask-word{font:400 italic 20px/1.1 var(--serif);color:var(--fg);letter-spacing:-.01em}
.ask-word:empty{display:none}
.excerpts{display:grid;gap:8px}
.excerpts p{margin:0;font-size:12.5px;line-height:1.5;color:var(--fg-3);border-left:1px solid var(--line-2);padding-left:10px}
.nrow{display:grid;grid-template-columns:36px minmax(0,1fr);gap:8px;align-items:center;padding:7px 4px;background:none;border:0;border-bottom:1px solid var(--line);text-align:left;color:var(--fg);width:100%;transition:background .2s}
.nrow:hover{background:var(--bg-2)}
.nrow.on{background:var(--surface);box-shadow:inset 2px 0 0 var(--nc)}
.nrow .id{font:400 11.5px var(--mono);color:var(--fg-3);display:flex;align-items:center;gap:6px}
.nrow .id i{width:8px;height:8px;border-radius:50%;background:var(--nc)}
.nrow .t{font-size:13px;color:var(--fg-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.navlink{font:500 14.5px var(--sans);color:var(--fg-3);text-decoration:none;padding:4px 0;transition:color .25s}
.navlink:hover{color:var(--fg)}
.qwrap{display:grid;gap:10px;justify-items:end}
.picks{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;max-width:min(520px,60vw)}
.pick{background:rgba(10,10,10,.85);border:1px solid var(--line-2);border-radius:40px;padding:5px 11px;font:400 12px var(--sans);color:var(--fg-2);transition:color .2s,border-color .2s}
.pick:hover{color:var(--fg);border-color:var(--fg)}
.pick.on{color:var(--red);border-color:var(--red)}
#bOpenFull{text-decoration:none}
/* readonly mode (preset): only Pedro's brain is shown, visitors cannot add or remove notes */
html.readonly #bInputBlk,html.readonly #bFoot,html.readonly #bClearDemo,html.readonly .bn .del,html.readonly #bIgnore{display:none!important}
html.readonly .bn{padding-right:22px}
html.readonly .demo{border-left-color:var(--red);color:var(--fg-2)}
/* embed mode (?embed): only the brain and its readouts, for iframes */
html.embed header.nav,html.embed .col.left,html.embed #bRetrain,html.embed .hint,html.embed #bIgnore{display:none}
html.embed #app{grid-template-rows:minmax(0,1fr)}
html.embed #tab-brain{grid-template-columns:minmax(0,1fr) 330px}
html.embed .col.right{border-left:1px solid var(--line)}

/* ================= CÓMO FUNCIONA ================= */
#tab-guia{overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
#tab-guia.on{display:block}
.g{max-width:1320px;margin:0 auto;padding:0 clamp(16px,4vw,48px) 80px}
.g-hero{padding:9vh 0 7vh;border-bottom:1px solid var(--line);display:grid;gap:28px}
.display{font:400 clamp(44px,6.4vw,104px)/.92 var(--serif);letter-spacing:-.05em;margin:0;max-width:13ch;text-wrap:balance}
.display em{font-style:italic;color:var(--red)}
.lead{font-size:clamp(16px,1.5vw,20px);line-height:1.6;color:var(--fg-2);max-width:62ch;margin:0}
.toc{display:flex;flex-wrap:wrap;gap:8px 26px;font:400 13px var(--mono);color:var(--fg-3)}
.toc a{color:var(--fg-2);text-decoration:none;border-bottom:1px solid var(--line-2);padding-bottom:2px}
.toc a:hover{color:var(--fg);border-color:var(--fg)}
.g-sec{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(28px,5vw,72px);padding:10vh 0;border-bottom:1px solid var(--line);align-items:start}
.g-sec.wide{grid-template-columns:1fr}
.g-text{display:grid;gap:18px;align-content:start;position:sticky;top:24px}
.h2{font:400 clamp(32px,3.6vw,54px)/1 var(--serif);letter-spacing:-.04em;margin:0;text-wrap:balance}
.g-text p{margin:0;color:var(--fg-2);font-size:16px;line-height:1.7;max-width:58ch}
.g-text p strong{color:var(--fg);font-weight:600}
.text-link{background:none;border:0;border-bottom:1px solid var(--fg);padding:0 0 3px;font:500 15px var(--sans);color:var(--fg);justify-self:start;transition:opacity .3s;text-align:left}
.text-link:hover{opacity:.6}

.plug{border:1px solid var(--line-2);background:var(--bg-2);min-width:0}
.plug-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.plug-name{font:700 12px var(--sans);letter-spacing:.14em;text-transform:uppercase}
.plug-name span{color:var(--red);font-family:var(--mono);font-weight:400;letter-spacing:0;margin-right:8px}
.plug-foot{display:flex;align-items:center;gap:14px;padding:14px 18px;border-top:1px solid var(--line);flex-wrap:wrap}
.sl{display:grid;gap:4px}
.sl .t{display:flex;justify-content:space-between;font:400 12.5px var(--sans);color:var(--fg-2)}
.sl .t b{font:400 13px var(--mono);color:var(--fg)}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:20px;background:none}
input[type=range]::-webkit-slider-runnable-track{height:1px;background:var(--line-2)}
input[type=range]::-moz-range-track{height:1px;background:var(--line-2)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:13px;height:13px;border-radius:50%;background:var(--fg);margin-top:-6px;border:0}
input[type=range]::-moz-range-thumb{width:13px;height:13px;border-radius:50%;background:var(--fg);border:0}
input[type=range]:active::-webkit-slider-thumb{background:var(--red)}

.p1{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;padding:18px}
#gnMap{width:100%;aspect-ratio:1;display:block}
.p1 .ctrls{display:grid;gap:16px;align-content:start}
.formula{font:400 13.5px/1.6 var(--mono);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;color:var(--fg-3);overflow-x:auto;white-space:nowrap}
.formula .w{color:var(--fg)}.formula .r{color:var(--red)}
.p2{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);min-height:0}
.net-wrap{position:relative;border-right:1px solid var(--line);min-height:360px}
.net-wrap canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.p2 .side{display:grid;gap:14px;padding:18px;align-content:start}
#ptOut{width:100%;aspect-ratio:1;display:block;cursor:crosshair}
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats div{padding:10px 0;display:grid;gap:4px}
.stats div+div{padding-left:12px;border-left:1px solid var(--line)}
.stats b{font:400 20px/1 var(--mono);font-variant-numeric:tabular-nums}
#ptLoss{width:100%;height:70px;display:block}
.lyrs{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.lyr{display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:40px;overflow:hidden}
.lyr button{background:none;border:0;padding:4px 9px;color:var(--fg-2);font:400 14px var(--mono)}
.lyr button:hover{color:var(--fg)}
.lyr span{font:400 13px var(--mono);min-width:16px;text-align:center}
.icon{width:34px;height:34px;border-radius:50%;border:1px solid var(--line-2);background:none;display:grid;place-items:center;color:var(--fg);padding:0;transition:border-color .2s}
.icon:hover{border-color:var(--fg)}
.icon.play{border-color:var(--red);color:var(--red)}
.maptip{position:absolute;pointer-events:none;background:var(--bg);border:1px solid var(--line-2);padding:4px 8px;font:400 11.5px var(--mono);white-space:nowrap}
.p3{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}
.p3 .net-wrap{min-height:440px}
.insp{padding:18px;display:grid;gap:14px;align-content:start}
#iMap{width:100%;max-width:240px;aspect-ratio:1;display:block}
.insp h4{font:400 26px/1 var(--serif);letter-spacing:-.03em;margin:0}
.insp p{margin:0;font-size:13.5px;line-height:1.6;color:var(--fg-2)}
.abl{display:flex;align-items:baseline;gap:12px;font:400 26px/1 var(--mono);font-variant-numeric:tabular-nums}
.abl .ar{color:var(--fg-3);font-size:15px}
.abl .d{margin-left:auto;font-size:12.5px;color:var(--fg-3)}
.abl .d.hit{color:var(--red)}
.wl{display:grid;gap:5px}
.wr{display:grid;grid-template-columns:76px 1fr 48px;gap:8px;align-items:center;font:400 11.5px var(--mono);color:var(--fg-3)}
.wr .bar{height:5px;position:relative;background:var(--line)}
.wr .bar i{position:absolute;top:0;bottom:0}
.wr .v{text-align:right;color:var(--fg)}
.wall{font:400 12.5px/1.75 var(--mono);color:var(--fg-3);margin:0;padding:18px;max-height:340px;overflow:hidden;white-space:normal;-webkit-mask-image:linear-gradient(#000 70%,transparent);mask-image:linear-gradient(#000 70%,transparent)}
.wall span{display:inline-block;white-space:nowrap;margin-right:.9em}
.wall .n{color:var(--red)}.wall .p{color:var(--fg-2)}
#gdCanvas{width:100%;height:220px;display:block}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

#toast{position:fixed;left:50%;bottom:calc(22px + env(safe-area-inset-bottom,0px));transform:translate(-50%,16px);opacity:0;background:var(--fg);color:var(--bg);border-radius:40px;padding:9px 18px;font:500 13px var(--sans);z-index:50;transition:opacity .3s,transform .4s var(--ease);pointer-events:none;max-width:calc(100vw - 32px)}
#toast.show{opacity:1;transform:translate(-50%,0)}

@media (max-width:1200px){
  #tab-brain{grid-template-columns:280px minmax(0,1fr) 280px}
  .g-sec{grid-template-columns:1fr}
  .g-text{position:static}
}
@media (max-width:860px){
  body{overflow:auto}
  html,body,#app{height:auto}
  header.nav{flex-wrap:wrap;gap:12px 20px}
  nav.links{margin-left:0;order:3;width:100%}
  .status{margin-left:auto}
  #tab-brain.on{display:flex;flex-direction:column}
  .col,.col.left{overflow:visible}
  .col.left,.col.right{border:0;border-bottom:1px solid var(--line)}
  .notes{max-height:440px;overflow:auto}
  .b-stage{height:100vh;height:100svh;min-height:480px;border-bottom:1px solid var(--line);order:-1}
  .b-stage::before{height:84px}
  .b-stage::after{height:56px}
  .col.right{order:0}
  .col.left{order:1}
  .hint,#bPicks,.picks,#bRetrain,.zoomctl{display:none!important}
  .hud{padding:14px 16px;gap:12px}
  .hud.top{flex-wrap:nowrap;align-items:flex-end}
  .count{gap:4px;flex:none}
  .count .lbl{font-size:9.5px}
  .count .n{font-size:21px}
  .count .n span{font-size:14px;margin:0 4px}
  .qwrap{flex:1;min-width:0;justify-items:stretch}
  .search,.search input{width:100%}
  .search input{font-size:13px;padding:9px 14px}
  .hud.bot{padding-block:10px}
  html.embed #tab-brain.on{display:flex}
  html.embed .b-stage{height:600px}
  .p1,.p2,.p3{grid-template-columns:1fr}
  .net-wrap{border-right:0;border-bottom:1px solid var(--line);min-height:340px}
  #tab-guia{overflow:visible}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}