/* /portfolio e /conceitos: mesma identidade da home, em arquivo próprio porque a CSP destas páginas
   não aceita <style> inline. Tokens e topo copiados do /proposito (que copia da home): mudou lá, mude aqui
   (tests/test_portfolio.py confere que os tokens são os mesmos). */
@font-face{font-family:Sora;src:url(/fonts/sora.woff2) format("woff2");font-weight:100 800;font-display:optional}
@font-face{font-family:Manrope;src:url(/fonts/manrope.woff2) format("woff2");font-weight:200 800;font-display:optional}
@font-face{font-family:"JetBrains Mono";src:url(/fonts/jetbrains-mono.woff2) format("woff2");font-weight:400;font-display:optional}
:root{--bg:#000;--bg2:#0B0D10;--ink:#F4F7F8;--mut:rgba(244,247,248,.66);--dim:rgba(244,247,248,.6);--line:rgba(244,247,248,.13);--brand:#35C6F4;--solid:#F4F7F8;--on-solid:#000;--bar:rgba(0,0,0,.72);color-scheme:dark}
html[data-gs-theme="light"]{--bg:#FFFFFF;--bg2:#F3F5F7;--ink:#05070C;--mut:rgba(5,7,12,.68);--dim:rgba(5,7,12,.6);--line:rgba(5,7,12,.12);--brand:#1B63F0;--solid:#05070C;--on-solid:#fff;--bar:rgba(255,255,255,.8);color-scheme:light}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 Manrope,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.w{max-width:1120px;margin:0 auto;padding-inline:max(20px,env(safe-area-inset-left,0px))}
h1,h2,h3{font-family:Sora,system-ui,sans-serif;font-weight:600;letter-spacing:-.02em;text-wrap:balance;margin:0}
.k{font:400 12px/1.4 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
.pular{position:absolute;left:-9999px}.pular:focus{left:16px;top:12px;z-index:30;background:var(--bg2);padding:8px 12px;border-radius:8px}

/* Topo: o mesmo da home, enxuto. */
header{position:sticky;top:0;z-index:20;background:var(--bar);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.bar{height:56px;display:flex;align-items:center;gap:14px}
.logo{display:flex;align-items:center;text-decoration:none;margin-right:auto}
.gs-logo{width:min(140px,26vw);height:auto;flex:none;vertical-align:middle}
footer .gs-logo{width:min(121px,23vw)}
nav.d{display:flex;gap:26px;font-size:14px}
nav.d a{text-decoration:none;color:var(--mut)}nav.d a:hover{color:var(--ink)}
.ib{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;padding:0}
.ib:hover{border-color:var(--ink)}
.ib svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.tema .lua{display:none}html[data-gs-theme="light"] .tema .sol{display:none}html[data-gs-theme="light"] .tema .lua{display:block}
.cta{height:34px;display:inline-flex;align-items:center;padding:0 16px;border:1px solid var(--line);border-radius:999px;font-size:14px;text-decoration:none;white-space:nowrap}
.cta:hover{border-color:var(--ink)}
@media (max-width:760px){nav.d{display:none}}

section{padding-block:88px;border-top:1px solid var(--line);scroll-margin-top:56px}
section>.w>h2{font-size:clamp(26px,3.4vw,40px);line-height:1.15;margin:12px 0 40px;max-width:24ch}
@media (max-width:760px){section{padding-block:56px}section>.w>h2{margin-bottom:28px}}

footer{border-top:1px solid var(--line);padding-block:40px 48px}
.ft{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;align-items:flex-start}
.ft .logo{margin:0}
.ft p{margin:10px 0 0;color:var(--mut);font-size:14px}
.ft nav{display:flex;flex-wrap:wrap;gap:18px;font-size:14px}.ft nav a{color:var(--mut);text-decoration:none}.ft nav a:hover{color:var(--ink)}
.ft small{display:block;width:100%;color:var(--dim);font-size:13px}

/* botões e janela de navegador (também usados no carrossel da home, que carrega o carrossel.css) */
.bt{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 20px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-weight:500;font-size:15px;color:var(--ink);transition:transform .2s,border-color .2s}
.bt.p{background:var(--solid);color:var(--on-solid);border-color:var(--solid)}
.bt:hover{border-color:var(--ink);transform:translateY(-2px)}
.janela{display:block;border-radius:14px;overflow:hidden;background:var(--bg2);border:1px solid var(--line)}
.janela__barra{display:flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-bottom:1px solid var(--line)}
.janela__barra i{width:8px;height:8px;border-radius:50%;background:var(--line);display:block;flex:none}
.janela__barra b{margin-left:8px;font:400 11px/1 "JetBrains Mono",ui-monospace,monospace;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.janela img{display:block;width:100%;height:auto;aspect-ratio:720/450;object-fit:cover}

/* Herói do /portfolio: texto à esquerda e três páginas em camadas 3D que seguem o ponteiro. */
.vhero{border-top:0;padding-block:88px 56px;overflow:clip;position:relative}
.vhero::before{content:"";position:absolute;inset:-20% -10% auto auto;width:60%;aspect-ratio:1;background:radial-gradient(closest-side,color-mix(in srgb,var(--brand) 22%,transparent),transparent);pointer-events:none}
.vhero .w{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;position:relative}
.vhero h1{font-size:clamp(38px,6vw,76px);line-height:1;letter-spacing:-.035em;margin:18px 0 22px}
.vhero h1 em{font-style:normal;color:var(--brand)}
.vhero p{color:var(--mut);font-size:clamp(17px,1.8vw,20px);line-height:1.5;max-width:44ch;margin:0 0 28px}
.vhero .acoes{display:flex;flex-wrap:wrap;gap:12px}
.cena{perspective:1100px;aspect-ratio:1;position:relative;max-width:520px;margin-inline:auto;width:100%}
.pilha{position:absolute;inset:0;transform-style:preserve-3d;transform:rotateX(calc(var(--ry,0)*1deg)) rotateY(calc(var(--rx,0)*1deg));transition:transform .18s ease-out}
.camada{position:absolute;width:78%;height:auto;aspect-ratio:720/450;object-fit:cover;border-radius:14px;border:1px solid var(--line);box-shadow:0 36px 60px -24px rgba(0,0,0,.6);background:var(--bg2)}
.c1{left:2%;top:3%;transform:translateZ(0) rotate(-6deg)}
.c2{left:20%;top:27%;transform:translateZ(70px) rotate(2deg)}
.c3{left:6%;top:51%;transform:translateZ(140px) rotate(-3deg)}
@media (prefers-reduced-motion:no-preference){.camada{animation:flutua 7s ease-in-out infinite}.c2{animation-delay:-2.3s}.c3{animation-delay:-4.6s}}
@keyframes flutua{50%{translate:0 -10px}}
@media (max-width:860px){.vhero{padding-block:56px 32px}.vhero .w{grid-template-columns:1fr;gap:28px}.cena{max-width:380px}}

/* Filtros e grade: cada cartão se inclina para onde o ponteiro está e entra com atraso ao rolar. */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px;padding:0}
.chip{height:40px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);font:500 14px/1 Manrope,system-ui,sans-serif;cursor:pointer}
.chip span{opacity:.6;font-size:12px;margin-left:4px}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--solid);color:var(--on-solid);border-color:var(--solid)}
.grade{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:22px}
.cartao{perspective:900px}
.cartao[hidden]{display:none}
.cartao__in{display:block;height:100%;text-decoration:none;color:inherit;padding:10px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,var(--bg2),transparent 70%);transform:rotateX(calc(var(--ry,0)*1deg)) rotateY(calc(var(--rx,0)*1deg));transition:transform .2s ease-out,box-shadow .25s,border-color .25s}
.cartao__in:hover,.cartao__in:focus-visible{border-color:color-mix(in srgb,var(--brand) 60%,var(--line));box-shadow:0 28px 50px -24px rgba(0,0,0,.55)}
.cartao__txt{display:flex;flex-direction:column;gap:6px;padding:14px 8px 8px}
.cartao strong{font:600 18px/1.25 Sora,system-ui,sans-serif;letter-spacing:-.01em}
.cartao .desc{color:var(--mut);font-size:14px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cartao[data-estado="proposta"] .k::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);margin-left:8px;vertical-align:middle}
html.js .cartao{opacity:0;translate:0 26px;transition:opacity .6s ease,translate .6s cubic-bezier(.22,.61,.36,1)}
html.js .cartao.vis{opacity:1;translate:0 0}
.legenda{color:var(--dim);font-size:14px;margin:28px 0 0;max-width:70ch}
.legenda .pt{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);margin-right:6px;vertical-align:middle}

/* /conceitos: painéis grandes que se empilham (sticky) e recuam em escala quando o próximo chega. */
.chero{border-top:0;padding-block:96px 40px;text-align:center}
.chero .w{display:flex;flex-direction:column;align-items:center}
.chero h1{font-size:clamp(40px,7vw,92px);line-height:1;letter-spacing:-.035em;margin:18px 0 22px;max-width:14ch}
.chero h1 em{font-style:normal;color:var(--brand)}
.chero p{color:var(--mut);font-size:clamp(17px,1.9vw,21px);line-height:1.5;max-width:46ch;margin:0}
.pilha-paineis{padding-block:24px 96px;border-top:0}
.painel{position:sticky;top:76px;margin-bottom:28px}
.painel__in{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:center;padding:32px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(160deg,var(--bg2),var(--bg));box-shadow:0 40px 80px -40px rgba(0,0,0,.7);min-height:min(64vh,560px)}
.painel .n{font:400 13px/1 "JetBrains Mono",ui-monospace,monospace;color:var(--brand);letter-spacing:.16em}
.painel h3{font-size:clamp(26px,3.4vw,42px);line-height:1.1;margin:14px 0 14px}
.painel p{color:var(--mut);margin:0 0 18px;font-size:16px;line-height:1.55}
.tecs{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px;padding:0}
.tecs li{font:400 12px/1 "JetBrains Mono",ui-monospace,monospace;padding:7px 10px;border:1px solid var(--line);border-radius:999px;color:var(--mut)}
.painel__tela{display:block;perspective:1200px;text-decoration:none}
.painel__tela .janela{transform:rotateY(-7deg) rotateX(3deg);transition:transform .35s ease-out;box-shadow:0 40px 70px -30px rgba(0,0,0,.7)}
.painel__tela:hover .janela{transform:rotateY(0) rotateX(0)}
@supports (animation-timeline:view()){
 @media (prefers-reduced-motion:no-preference){
  .painel__in{animation:recua linear both;animation-timeline:view();animation-range:exit 0% exit 100%;transform-origin:50% 0}
  @keyframes recua{to{transform:scale(.94);opacity:.55}}
 }
}
@media (max-width:860px){.painel{position:static}.painel__in{grid-template-columns:1fr;padding:22px;min-height:0;gap:22px}.painel__tela{order:-1}}
.fecho{text-align:center}
.fecho h2{margin-inline:auto}
.fecho p{color:var(--mut);max-width:50ch;margin:0 auto 28px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pilha,.cartao__in,.painel__tela .janela{transition:none}html.js .cartao{opacity:1;translate:none;transition:none}}