:root{
  --void:#05070d;
  --deep:#0a1526;
  --mist:#9fb0c8;
  --white:#eef3fb;
  --motor:#ffb35c;     /* lobo anterior — motor */
  --cog:#7fe3ff;       /* hemisférios posteriores — cognitivo */
  --afet:#ff7ab8;      /* vermis — afetivo */
  --line:rgba(159,176,200,.18);
  --serif:"Instrument Serif",Georgia,serif;
  --sans:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--void);color:var(--white);
  font-family:var(--sans);font-size:16px;line-height:1.6;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0;line-height:1.05;text-wrap:balance;letter-spacing:-.01em}
p{margin:0}
canvas{display:block}

/* ---- camadas de fundo ---- */
#scene{position:fixed;inset:0;z-index:0}
#scene canvas{width:100%;height:100%}
.glow{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 42%,rgba(24,64,120,.42) 0%,rgba(8,14,26,.15) 45%,rgba(5,7,13,.92) 100%)}
.grain{position:fixed;inset:-50%;z-index:2;pointer-events:none;opacity:.42;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='160' height='160' filter='url(%23n)' opacity='.55'/></svg>");
  animation:grain 1.1s steps(3) infinite}
@keyframes grain{0%{transform:translate(0,0)}33%{transform:translate(-2%,1%)}66%{transform:translate(1%,-2%)}100%{transform:translate(0,0)}}
.scan{position:fixed;inset:0;z-index:2;pointer-events:none;opacity:.16;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.09) 0 1px,transparent 1px 3px)}

/* ---- estrutura ---- */
.page{position:relative;z-index:3}
.wrap{max-width:1200px;margin:0 auto;padding-inline:22px}
.mono{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--mist)}

header{position:fixed;top:0;left:0;right:0;z-index:20;padding-block:18px;
  background:linear-gradient(180deg,rgba(5,7,13,.85),transparent)}
.nav{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:11px;margin-right:auto;text-decoration:none;color:var(--white)}
.logo svg{width:26px;height:26px;flex:none}
.logo b{font-family:var(--serif);font-size:19px;font-weight:400;letter-spacing:.01em}
.logo i{font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mist);font-style:normal}
.nav a.lk{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--mist);text-decoration:none;transition:color .2s}
.nav a.lk:hover{color:var(--motor)}
@media (max-width:700px){.nav a.lk{display:none}.nav a.lk.keep{display:inline}}

.btn{position:relative;display:inline-flex;align-items:center;gap:10px;background:transparent;color:var(--white);
  border:1px solid var(--line);padding:14px 22px;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;cursor:pointer;text-decoration:none;transition:border-color .25s,color .25s,background .25s}
.btn:hover{border-color:var(--motor);color:var(--motor);background:rgba(255,179,92,.06)}
.btn::before,.btn::after{content:"";position:absolute;width:7px;height:7px;border:1px solid currentColor;opacity:.85}
.btn::before{left:-1px;top:-1px;border-right:0;border-bottom:0}
.btn::after{right:-1px;bottom:-1px;border-left:0;border-top:0}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--cog);outline-offset:3px}

/* ---- hero ---- */
.hero{min-height:88vh;display:flex;flex-direction:column;justify-content:center;padding-block:120px 60px}
.hero h1{font-size:clamp(52px,11vw,150px);line-height:.92;letter-spacing:-.03em}
.hero h1 em{font-style:italic;color:var(--motor)}
.hero .hero-description{display:block;max-width:48ch;margin-top:28px;color:var(--mist);font-size:clamp(17px,1.6vw,20px);line-height:1.65}
.hero .row{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px;align-items:center}
.tick{display:flex;gap:26px;flex-wrap:wrap;margin-top:52px;border-top:1px solid var(--line);padding-top:18px}
.tick div b{font-family:var(--serif);font-size:26px;display:block;line-height:1}
.tick div span{font-family:var(--mono);font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--mist);display:block;margin-top:6px}

/* ---- seções ---- */
section{padding-block:110px;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--motor)}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
section h2{font-size:clamp(32px,5.2vw,64px);margin-top:16px;max-width:16ch}
.lead{color:var(--mist);max-width:58ch;margin-top:20px;font-size:17px}

.panel{background:rgba(8,14,26,.66);backdrop-filter:blur(14px);border:1px solid var(--line);padding:28px}

/* explorador */
.explorer{display:grid;grid-template-columns:1fr 1.05fr;gap:34px;align-items:start;margin-top:42px}
.regions{display:flex;flex-direction:column;gap:10px}
.region{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;text-align:left;
  background:rgba(8,14,26,.5);border:1px solid var(--line);color:var(--white);padding:16px 18px;cursor:pointer;transition:border-color .25s,transform .25s,background .25s}
.region:hover{transform:translateX(4px)}
.region .dot{width:10px;height:10px;border-radius:50%;box-shadow:0 0 14px currentColor;background:currentColor}
.region h3{font-size:21px}
.region p{font-size:13px;color:var(--mist);margin-top:3px}
.region .idx{font-family:var(--mono);font-size:10px;color:var(--mist)}
.region[data-r="0"]{color:var(--motor)} .region[data-r="1"]{color:var(--cog)} .region[data-r="2"]{color:var(--afet)}
.region h3,.region p{color:inherit}
.region p{opacity:.72}
.region[aria-pressed="true"]{border-color:currentColor;background:rgba(255,255,255,.05)}
.readout{min-height:280px}
.readout .mono{color:var(--motor)}
.readout h3{font-size:clamp(24px,3vw,34px);margin-top:12px}
.readout p{margin-top:16px;color:var(--mist)}
.readout ul{margin:18px 0 0;padding-left:18px;color:var(--mist);font-size:15px}
.readout li{margin-top:8px}
.readout .tag{display:inline-block;margin-top:20px;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;border:1px solid var(--line);padding:6px 10px;color:var(--white)}
.hintdrag{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--mist);margin-top:16px;opacity:.7}

/* timeline */
.tl{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;border-top:1px solid var(--line)}
.tl article{padding:24px 20px 0 0;border-right:1px solid var(--line)}
.tl article:last-child{border-right:0}
.tl .yr{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--motor)}
.tl h3{font-size:19px;margin-top:12px}
.tl p{font-size:14px;color:var(--mist);margin-top:10px}

/* jogo */
.game{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;margin-top:42px;align-items:stretch}
.arena{position:relative;aspect-ratio:16/11;border:1px solid var(--line);background:rgba(4,8,16,.72);overflow:hidden;touch-action:none;cursor:crosshair}
.arena canvas{width:100%;height:100%}
.arena .hud{position:absolute;left:14px;top:12px;display:flex;gap:18px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mist);pointer-events:none}
.arena .hud b{color:var(--white);font-weight:500}
.switch{display:flex;gap:0;border:1px solid var(--line);width:fit-content}
.switch button{background:transparent;border:0;color:var(--mist);font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;padding:12px 16px;cursor:pointer;transition:.2s}
.switch button[aria-pressed="true"]{background:var(--white);color:var(--void)}
.gameside{display:flex;flex-direction:column;gap:18px;justify-content:center}
.gameside h3{font-size:clamp(22px,2.8vw,30px)}
.gameside p{color:var(--mist);font-size:15px}
.verdict{border-left:2px solid var(--motor);padding:12px 0 12px 16px;font-size:15px;color:var(--white);min-height:64px}

/* quiz */
.quiz{margin-top:40px;display:grid;gap:16px}
.q{border:1px solid var(--line);background:rgba(8,14,26,.55);padding:22px}
.q h3{font-size:19px;font-family:var(--sans);font-weight:500;line-height:1.4}
.opts{display:grid;gap:8px;margin-top:16px}
.opt{text-align:left;background:transparent;border:1px solid var(--line);color:var(--white);padding:12px 14px;font-family:var(--sans);font-size:15px;cursor:pointer;transition:.2s}
.opt:hover{border-color:var(--cog)}
.opt.ok{border-color:var(--motor);background:rgba(255,179,92,.12)}
.opt.no{border-color:#ff6b6b;background:rgba(255,107,107,.1);opacity:.8}
.fb{margin-top:14px;font-size:14px;color:var(--mist);display:none}
.fb.show{display:block}

/* newsletter */
.sub{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;border-block:1px solid var(--line);padding-block:56px}
form{display:flex;gap:10px;flex-wrap:wrap}
form input{flex:1 1 240px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--white);padding:15px 16px;font-family:var(--sans);font-size:15px}
form input::placeholder{color:#6b7a92}
.note{font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--mist);margin-top:12px;text-transform:uppercase}

footer{padding-block:44px 60px;color:var(--mist)}
.fr{display:flex;gap:22px;flex-wrap:wrap;align-items:center;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;border-top:1px solid var(--line);padding-top:26px}
.fr a{color:var(--mist);text-decoration:none}.fr a:hover{color:var(--motor)}

@media (max-width:900px){
  .explorer,.game,.sub{grid-template-columns:1fr}
  .tl{grid-template-columns:1fr 1fr}
  .tl article{border-right:0;border-bottom:1px solid var(--line);padding-bottom:20px}
  section{padding-block:80px}
}
@media (max-width:480px){
  .hero{min-height:82vh}
  .tl{grid-template-columns:1fr}
  .tick{gap:18px}
}
@media (prefers-reduced-motion:reduce){.grain{animation:none}*{transition-duration:.01ms!important}}

a{color:var(--cog)} .skip{position:fixed;left:1rem;top:-100px;z-index:99;background:var(--void);padding:1rem}.skip:focus{top:0}
section{scroll-margin-top:100px}.hero h1{font-size:clamp(48px,8.6vw,124px)}
#scene{position:relative;inset:auto;height:460px;width:100%;background:radial-gradient(ellipse,#123056,#05070d);border:1px solid var(--line);z-index:4;border-radius:8px;overflow:hidden}
#scene canvas{width:100%;height:100%}.fallback{width:100%;height:100%;object-fit:contain}.fallback[hidden]{display:none}
.model-layout{margin-top:36px}.model-controls{display:flex;flex-wrap:wrap;gap:8px;margin-block:16px}.model-controls .btn{padding:10px;font-size:10px}
.readout{min-height:300px}.row{margin-top:24px}.grain{animation:none;opacity:.15}.glow{opacity:.3}
.reading{max-width:900px;padding-top:130px;padding-bottom:60px}.reading h1{font-size:clamp(36px,5vw,64px);margin:25px 0}.reading h2{font-size:32px;margin:32px 0 16px}.reading h3{font-size:24px;line-height:1.3;margin:16px 0}.reading p{margin:16px 0}.reading nav{display:flex;gap:20px;flex-wrap:wrap}.reading article{border:1px solid var(--line);background:var(--deep);padding:24px;margin:24px 0}.reading input,.reading select,.reading textarea{max-width:100%;padding:12px;background:var(--deep);color:var(--white);border:1px solid var(--mist);font:inherit}.reading label{display:block;margin:16px 0 8px}.reading textarea{width:100%;min-height:100px}.reading code{overflow-wrap:anywhere}.reading a,.reading h3{overflow-wrap:anywhere}.filters{display:flex;gap:20px;flex-wrap:wrap}#result-count{color:var(--mist)}[hidden]{display:none!important}
@media(max-width:700px){#scene{height:320px}.nav{gap:12px}.nav a.lk.keep{font-size:10px}header{background:rgba(5,7,13,.95)}.hero{padding-top:140px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.circuit-stages{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.circuit-stages [aria-pressed=true]{background:#ffbf69;color:#07101f}.circuit-guide .panel{min-height:210px;padding:24px}.circuit-guide p{margin:16px 0;line-height:1.75}.site-footer{border-top:1px solid #526077;background:#08101c;padding:32px max(24px,calc((100% - 1100px)/2));color:#e5edf7}.site-footer nav{display:flex;gap:18px;flex-wrap:wrap}.site-footer a{font-size:16px;text-decoration:underline}.site-footer p{margin-top:16px}