/* ============================================================================
   4DView v2 — Base + componentes.  Sóbrio, corporativo, restrito.
   ============================================================================ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:var(--font-sans);font-size:var(--step-0);line-height:1.6;
  font-weight:400;letter-spacing:-.006em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3{font-weight:600;letter-spacing:-.028em;line-height:1.05;margin:0}
p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:rgba(91,156,255,.26);color:#fff}
:focus-visible{outline:2px solid var(--ring);outline-offset:3px;border-radius:3px}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.kicker{
  font-family:var(--font-mono);font-size:var(--step--1);font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--fg-2);
}
.mono{font-family:var(--font-mono);letter-spacing:.02em;font-variant-numeric:tabular-nums}
/* Marca: nome de produto/empresa — Arial Bold; "4D" sempre vermelho; resto herda a cor (preto no claro, branco no escuro) */
.pname{font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font-weight:700;letter-spacing:-.02em}
.p4d{color:var(--brand-red)}

/* --- Header --- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;height:68px;display:flex;align-items:center;
  background:rgba(10,12,15,.72);backdrop-filter:saturate(150%) blur(14px);
  -webkit-backdrop-filter:saturate(150%) blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex;align-items:center;gap:var(--s-5);width:100%}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:1.2rem}
.brand::before{content:"";width:27px;height:27px;background:url(/assets/4dview-mark.png) center/contain no-repeat;flex:0 0 auto}
.site-footer .brand{display:inline-flex}
.site-footer .brand::before{display:block;background-image:url(/assets/4dview-logo-white.webp);width:180px;height:174px;filter:none}
.site-footer .brand .pname{display:none}
.brand .mark{width:22px;height:22px;border:1px solid var(--line-2);border-radius:5px;display:grid;place-items:center;font-family:var(--font-mono);font-size:11px;color:var(--accent)}
.nav{display:flex;gap:var(--s-3);margin-left:var(--s-2)}
.nav a{font-size:.92rem;color:var(--fg-1);padding:6px 2px;transition:color var(--dur-fast) var(--ease)}
.nav a:hover{color:var(--fg)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:var(--s-3)}
.lang{display:flex;gap:2px;font-family:var(--font-mono);font-size:.74rem;color:var(--fg-2)}
.lang a{padding:4px 6px;border-radius:5px}
.lang a[aria-current]{color:var(--fg);background:rgba(255,255,255,.06)}
.lang a:hover{color:var(--fg)}

.btn{
  display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:500;
  padding:10px 18px;border-radius:7px;border:1px solid transparent;cursor:pointer;
  transition:background var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease);
  white-space:nowrap;
}
.btn-ghost{border-color:var(--line-2);color:var(--fg)}
.btn-ghost:hover{border-color:var(--fg-1);background:rgba(255,255,255,.04)}
.btn-primary{background:var(--fg);color:#0A0C0F;font-weight:600}
.btn-primary:hover{background:#fff}
.arrow{transition:transform var(--dur-fast) var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}

/* --- Hero --- */
.hero{position:relative;padding:calc(68px + var(--s-8)) 0 var(--s-8);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:var(--s-6);align-items:center}
.hero-eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:var(--s-4)}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(91,156,255,.16)}
.hero h1{font-size:var(--step-4);max-width:16ch}
.hero h1 .soft{color:var(--fg-1)}
.hero .lead{margin-top:var(--s-4);font-size:var(--step-1);line-height:1.55;color:var(--fg-1);max-width:52ch}
.hero-actions{margin-top:var(--s-5);display:flex;flex-wrap:wrap;gap:var(--s-2);align-items:center}
.hero-note{margin-top:var(--s-4);font-family:var(--font-mono);font-size:var(--step--1);color:var(--fg-2);letter-spacing:.03em}

/* Artefato geoespacial — calmo, de engenharia */
.artifact{position:relative;aspect-ratio:1/1;border:1px solid var(--line);border-radius:12px;background:var(--bg-1);overflow:hidden}
.artifact .plane{position:absolute;inset:-30% -10% -10%;background-image:linear-gradient(rgba(91,156,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(91,156,255,.14) 1px,transparent 1px);background-size:38px 38px;transform:perspective(600px) rotateX(60deg);transform-origin:bottom center;-webkit-mask-image:radial-gradient(120% 90% at 50% 100%,#000 30%,transparent 78%);mask-image:radial-gradient(120% 90% at 50% 100%,#000 30%,transparent 78%);animation:drift 14s linear infinite}
.artifact .glow{position:absolute;left:50%;bottom:-10%;width:70%;height:55%;transform:translateX(-50%);background:radial-gradient(closest-side,rgba(37,99,235,.30),transparent 72%);filter:blur(10px)}
.artifact .scan{position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(91,156,255,.05) 48%,transparent);animation:scan 6s var(--ease) infinite}
.artifact .hud{position:absolute;left:16px;top:16px;font-family:var(--font-mono);font-size:11px;color:var(--fg-2);letter-spacing:.06em;line-height:1.7}
.artifact .hud b{color:var(--accent);font-weight:500}
.artifact .corner{position:absolute;right:16px;bottom:14px;font-family:var(--font-mono);font-size:10.5px;color:var(--fg-2);letter-spacing:.1em}
.artifact .node{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(91,156,255,.14)}
@keyframes drift{to{background-position:0 38px,38px 0}}
@keyframes scan{0%,100%{transform:translateY(-30%);opacity:0}50%{transform:translateY(30%);opacity:1}}

/* --- Seções --- */
.section{padding:var(--s-8) 0;border-top:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:auto 1fr;gap:var(--s-4);align-items:baseline;margin-bottom:var(--s-6)}
.section-head .idx{font-family:var(--font-mono);font-size:.8rem;color:var(--fg-2);letter-spacing:.1em;padding-top:.5rem}
.section-head h2{font-size:var(--step-3);max-width:22ch}
.section-head .sub{grid-column:2;margin-top:var(--s-3);color:var(--fg-1);font-size:var(--step-1);max-width:60ch}

/* Espinha (lista sistema → prova) */
.spine{border-top:1px solid var(--line)}
.spine-row{display:grid;grid-template-columns:1.2fr 2fr auto;gap:var(--s-4);align-items:center;padding:var(--s-3) 0;border-bottom:1px solid var(--line);transition:background var(--dur-fast) var(--ease)}
.spine-row:hover{background:rgba(255,255,255,.02)}
.spine-row .sys{font-weight:600;font-size:1.02rem}
.spine-row .proof{color:var(--fg-1);font-size:.96rem}
.spine-row .tag{font-family:var(--font-mono);font-size:.72rem;color:var(--fg-2);letter-spacing:.08em;text-transform:uppercase;justify-self:end}

/* Plataforma — moldura de produto vivo */
.platform-frame{border:1px solid var(--line);border-radius:12px;background:var(--bg-1);aspect-ratio:16/8;display:grid;place-items:center;position:relative;overflow:hidden}
.platform-frame .plane{position:absolute;inset:-20% -5% -5%;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;transform:perspective(800px) rotateX(58deg);transform-origin:bottom;-webkit-mask-image:radial-gradient(120% 100% at 50% 100%,#000 20%,transparent 75%);mask-image:radial-gradient(120% 100% at 50% 100%,#000 20%,transparent 75%)}
.platform-frame .label{position:relative;font-family:var(--font-mono);font-size:.78rem;color:var(--fg-2);letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--line-2);padding:8px 14px;border-radius:999px;background:rgba(10,12,15,.5)}

/* Números conferíveis */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.stats .cell{background:var(--bg);padding:var(--s-4) var(--s-3)}
.stats .n{font-size:clamp(1.6rem,1rem + 2vw,2.4rem);font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stats .k{margin-top:8px;font-size:.82rem;color:var(--fg-2);line-height:1.4}

/* --- Footer --- */
.site-footer{border-top:1px solid var(--line);padding:var(--s-7) 0 var(--s-5);color:var(--fg-1)}
.footer-top{display:grid;grid-template-columns:200px 1.4fr 1fr 1fr;gap:var(--s-5);align-items:start}
.footer-logo-col .brand{margin:0}
.footer-top h3{font-size:1.05rem;margin-bottom:var(--s-2)}
.footer-top p{font-size:.92rem;color:var(--fg-1);max-width:34ch}
.footer-col .kicker{margin-bottom:var(--s-2)}
.footer-col a{display:block;padding:5px 0;font-size:.92rem;color:var(--fg-1)}
.footer-col a:hover{color:var(--fg)}
.footer-legal{margin-top:var(--s-6);padding-top:var(--s-3);border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:var(--s-2);font-family:var(--font-mono);font-size:.72rem;color:var(--fg-2);letter-spacing:.04em}

/* --- Responsivo --- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:var(--s-5)}
  .artifact{max-width:440px}
  .nav{display:none}
  .section-head{grid-template-columns:1fr}
  .section-head .idx{padding-top:0}
  .section-head .sub{grid-column:1}
  .spine-row{grid-template-columns:1fr;gap:6px;align-items:start}
  .spine-row .tag{justify-self:start}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){.footer-top{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.001ms!important}
}

/* ============================================================================
   Tema claro — ajustes + "janelas de produto" que permanecem escuras
   (dado geoespacial: mapa/3D/360º lê melhor no escuro, como nas enterprise)
   ============================================================================ */
.site-header{background:rgba(255,255,255,.82)}
.lang a[aria-current]{background:rgba(11,14,19,.06)}
.btn-ghost:hover{background:rgba(11,14,19,.03)}
.btn-primary{background:#0B0E13;color:#fff}
.btn-primary:hover{background:#000}
.spine-row:hover{background:rgba(11,14,19,.02)}
::selection{background:rgba(31,95,208,.20);color:#0B0E13}

/* janelas de produto — sempre escuras */
.artifact,.platform-frame{background:var(--window);border-color:rgba(11,14,19,.14)}
.artifact .hud{color:#9AA2AE}
.artifact .hud b{color:#5B9CFF}
.artifact .corner{color:#7C8695}
.platform-frame .plane{background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px)}
.platform-frame .label{color:#9AA2AE;border-color:rgba(255,255,255,.18);background:rgba(10,12,15,.5)}

/* ============================================================================
   Componentes Fase 1
   ============================================================================ */
/* Janela de produto com imagem real (sempre escura) */
.window{position:relative;border:1px solid rgba(11,14,19,.14);border-radius:12px;overflow:hidden;background:var(--window)}
.window > img{width:100%;height:100%;object-fit:cover;display:block}
.window .wtag{position:absolute;left:14px;top:13px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#D4DAE1;background:rgba(10,12,15,.55);border:1px solid rgba(255,255,255,.16);padding:5px 11px;border-radius:7px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.window .wcoord{position:absolute;right:14px;bottom:12px;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;color:rgba(212,218,225,.85);background:rgba(10,12,15,.45);padding:5px 9px;border-radius:6px}
.hero .window > img{height:auto;object-fit:contain}

/* Pipeline (4 etapas) */
.pipeline{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:var(--s-5)}
.pipeline .step{position:relative;background:linear-gradient(165deg,#F6F9FD 0%,#ECF1F8 100%);padding:var(--s-4) var(--s-3);transition:background var(--dur-fast) var(--ease)}
.pipeline .step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);opacity:.85}
.pipeline .step:hover{background:#fff}
.pipeline .step .n{font-family:var(--font-mono);font-size:.72rem;color:var(--accent);letter-spacing:.14em}
.pipeline .step h4{margin:12px 0 7px;font-size:1.05rem;font-weight:600;letter-spacing:-.01em}
.pipeline .step p{font-size:.9rem;color:var(--fg-1);line-height:1.5}

/* Soluções */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-3);margin-top:var(--s-5)}
.sol-card{border:1px solid var(--line);border-radius:14px;padding:var(--s-4);background:#F4F6FB;box-shadow:0 2px 5px rgba(11,14,19,.05);transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.sol-card:hover{transform:translateY(-3px);box-shadow:0 18px 38px -20px rgba(11,14,19,.28)}
.sol-card .name{display:flex;align-items:center;gap:9px;font-weight:600;font-size:1.08rem;letter-spacing:-.01em;margin-bottom:10px}
.sol-card .cdot{width:8px;height:8px;border-radius:2px;background:var(--accent);flex:0 0 auto}
.sol-card .dom{display:inline-block;font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-2);margin-bottom:11px}
.sol-card:hover .dom{color:var(--accent)}
.sol-card p{font-size:.92rem;color:var(--fg-1);line-height:1.55}
.sol-grid.two{grid-template-columns:repeat(2,1fr)}
a.sol-card{text-decoration:none;color:inherit;display:block}
@media(max-width:760px){.sol-grid.two{grid-template-columns:1fr}}

/* Cards de produto aprofundados (página Outros Produtos) */
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--s-3);margin-top:var(--s-5)}
.prod-card{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:16px;padding:var(--s-4) var(--s-4) var(--s-4);background:linear-gradient(165deg,#FBFCFE 0%,#EFF3F9 100%);box-shadow:0 2px 6px rgba(11,14,19,.05);transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.prod-card:hover{transform:translateY(-3px);box-shadow:0 22px 44px -22px rgba(11,14,19,.3)}
.prod-card .dom{display:inline-block;font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-2);margin-bottom:12px}
.prod-card:hover .dom{color:var(--accent)}
.prod-card .name{font-size:1.35rem;letter-spacing:-.01em;line-height:1.1}
.prod-card .plead{margin:9px 0 0;font-size:1rem;font-weight:600;color:var(--fg);line-height:1.4}
.prod-card p{margin:10px 0 0;font-size:.92rem;color:var(--fg-1);line-height:1.6}
.prod-card .feat{list-style:none;margin:16px 0 0;padding:14px 0 0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}
.prod-card .feat li{position:relative;padding-left:15px;font-size:.84rem;color:var(--fg-1);line-height:1.35}
.prod-card .feat li::before{content:"";position:absolute;left:0;top:.5em;width:5px;height:5px;border-radius:1px;background:var(--accent)}
@media(max-width:760px){.prod-grid{grid-template-columns:1fr}.prod-card .feat{grid-template-columns:1fr}}

/* Artigos (Aspectos Legais) */
.article{max-width:840px;margin:0 auto}
.art-head{padding:var(--s-6) 0 0}
.art-eyebrow{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.article h1{margin:16px 0 0;font-size:var(--step-3);line-height:1.08;letter-spacing:-.02em;font-weight:700;text-wrap:balance}
.art-dek{margin:18px 0 0;font-size:var(--step-1);line-height:1.5;color:var(--fg-1);max-width:70ch}
.art-note{margin-top:16px;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--fg-2);line-height:1.5}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:var(--s-5) 0 0}
.stat-row .st{background:linear-gradient(160deg,#F5F8FC 0%,#EDF1F8 100%);padding:var(--s-3) var(--s-4)}
.stat-row .sv{font-family:var(--font-mono);font-size:1.45rem;font-weight:500;letter-spacing:-.02em;color:var(--fg)}
.stat-row .sl{margin-top:6px;font-size:.78rem;color:var(--fg-1);line-height:1.35}
.art-sec{margin-top:var(--s-6)}
.art-sec>.kicker{display:block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:9px}
.art-sec h2{font-size:var(--step-2);line-height:1.15;letter-spacing:-.02em;font-weight:700;margin:0}
.art-sec p{margin:14px 0 0;font-size:1.03rem;line-height:1.72;color:var(--fg-1)}
.art-sec p strong{color:var(--fg)}
.art-sec ul{margin:14px 0 0;padding-left:0;list-style:none}
.art-sec ul li{position:relative;padding-left:20px;margin-top:9px;font-size:1rem;line-height:1.6;color:var(--fg-1)}
.art-sec ul li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:1px;background:var(--accent)}
.callout{margin-top:var(--s-4);border:1px solid var(--line);border-left:3px solid var(--signal);border-radius:10px;background:var(--bg-1);padding:var(--s-3) var(--s-4);font-size:.98rem;line-height:1.62;color:var(--fg-1)}
.callout strong{color:var(--fg)}
.synthese{margin-top:var(--s-6);border-top:1px solid var(--line);padding-top:var(--s-5)}
.synthese .kicker{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--fg-2)}
.synthese p{margin:12px 0 0;font-size:var(--step-1);line-height:1.5;color:var(--fg);font-weight:500}
.art-foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-top:var(--s-6);border-top:1px solid var(--line);padding-top:var(--s-4)}
.art-foot a.more{font-family:var(--font-mono);font-size:.8rem;letter-spacing:.04em;color:var(--accent)}
.disclaimer{margin-top:var(--s-5);font-size:.82rem;color:var(--fg-2);line-height:1.6;border-top:1px solid var(--line);padding-top:var(--s-3)}
@media(max-width:640px){.stat-row{grid-template-columns:repeat(2,1fr)}}

/* Bloco de contatos */
.contacts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:var(--s-3)}
.contacts .ci{background:var(--bg);padding:var(--s-3) var(--s-4);display:flex;flex-direction:column;gap:6px}
.contacts .ck{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-2)}
.contacts .ci a,.contacts .ci .cv{font-size:.98rem;color:var(--fg);font-weight:500;text-decoration:none;line-height:1.35}
.contacts .ci a:hover{color:var(--accent)}
.contacts .ci .tag{margin-top:2px;font-family:var(--font-mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--signal)}
@media(max-width:760px){.contacts{grid-template-columns:repeat(2,1fr)}}
/* faixas alternadas p/ ritmo (evita o "brancão") */
.section.tint{background:var(--bg-1)}

/* Capacidades da plataforma (descritivo enxuto) */
.caps-head{margin-top:var(--s-7);display:flex;align-items:baseline;gap:12px}
.caps{margin-top:var(--s-3);display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.cap{position:relative;background:linear-gradient(160deg,#F5F8FC 0%,#EDF1F8 100%);padding:var(--s-3) var(--s-4);transition:background var(--dur-fast) var(--ease)}
.cap::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);opacity:0;transition:opacity var(--dur-fast) var(--ease)}
.cap:hover{background:#fff}
.cap:hover::before{opacity:1}
.cap .cn{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.cap .cm{margin-top:7px;font-size:.9rem;color:var(--fg-1);line-height:1.45}
.caps.two{grid-template-columns:repeat(2,1fr)}
.caps.four{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.caps.four{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.caps{grid-template-columns:1fr}}
@media(max-width:640px){.caps.two,.caps.four{grid-template-columns:1fr}}

/* Demonstrações ao vivo (iframes reais; carregam sob clique) */
.demos{margin-top:var(--s-5)}
.demo-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:var(--s-3)}
.demo-tab{font-size:.9rem;font-weight:500;padding:9px 16px;border-radius:999px;border:1px solid var(--line-2);background:var(--bg);color:var(--fg-1);cursor:pointer;transition:color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease)}
.demo-tab:hover{color:var(--fg)}
.demo-tab.active{background:var(--fg);color:#fff;border-color:var(--fg)}
.demo-stage{position:relative;aspect-ratio:16/9;background:var(--window);border:1px solid rgba(11,14,19,.14);border-radius:14px;overflow:hidden}
.demo-stage iframe{width:100%;height:100%;border:0;display:block;background:#0A0C0F}
.demo-cover{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:20px;background:radial-gradient(circle at 50% 42%,#141A23,#0A0C0F)}
.demo-cover::before{content:"";position:absolute;left:-10%;right:-10%;bottom:-10%;height:66%;background-image:linear-gradient(rgba(91,156,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(91,156,255,.12) 1px,transparent 1px);background-size:44px 44px;transform:perspective(700px) rotateX(60deg);transform-origin:bottom;-webkit-mask-image:radial-gradient(120% 90% at 50% 100%,#000 25%,transparent 75%);mask-image:radial-gradient(120% 90% at 50% 100%,#000 25%,transparent 75%)}
.demo-cover .wtag{position:relative;background:transparent;border:none;color:#9AA2AE;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;padding:0}
.demo-play{position:relative;display:inline-flex;align-items:center;font-size:.95rem;font-weight:600;color:#0A0C0F;background:#fff;border:none;padding:13px 22px;border-radius:999px;cursor:pointer;transition:transform var(--dur-fast) var(--ease)}
.demo-play:hover{transform:translateY(-2px)}
.demo-hint{position:relative;font-size:12px;color:#7C8695}

/* ============================================================================
   Fechamento escuro (CTA + rodapé) — personalidade, na linha do cartão
   ============================================================================ */
#contato{position:relative;overflow:hidden;background:#0A0C0F;border-top:1px solid rgba(255,255,255,.08)}
#contato::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(91,156,255,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(91,156,255,.11) 1px,transparent 1px);background-size:58px 58px;-webkit-mask-image:radial-gradient(120% 130% at 82% 0%,#000,transparent 68%);mask-image:radial-gradient(120% 130% at 82% 0%,#000,transparent 68%);pointer-events:none}
#contato .cta-band{position:relative;background:transparent;border:none;padding:var(--s-4) 0}
#contato .cta-band h2{color:#fff}
#contato .cta-band .sub{color:#AEB7C3}
#contato .cta-band .btn-primary{background:#fff;color:#0A0C0F}
#contato .cta-band .btn-primary:hover{background:#fff;filter:brightness(.92)}

.site-footer{background:#0A0C0F;color:#AEB7C3;border-top:1px solid rgba(255,255,255,.08)}
.site-footer .footer-col a.brand{color:#fff}
.site-footer .footer-top p{color:#8B93A0}
.site-footer .footer-col a{color:#AEB7C3}
.site-footer .footer-col a:hover{color:#fff}
.site-footer .footer-col .kicker{color:#6B7480}
.site-footer .footer-legal{border-top-color:rgba(255,255,255,.08);color:#6B7480}
.sol-more{margin-top:var(--s-4);font-family:var(--font-mono);font-size:.82rem;color:var(--accent);letter-spacing:.02em}
.sol-more:hover{color:var(--accent-2)}

/* Autoridade / origem */
.authority{display:grid;grid-template-columns:1fr 1fr;gap:var(--s-6);align-items:start}
.authority .lead-2{font-size:var(--step-2);line-height:1.22;letter-spacing:-.022em;max-width:18ch;font-weight:600}
.authority p{color:var(--fg-1);font-size:1.04rem;line-height:1.62}
.authority p + p{margin-top:var(--s-3)}

/* Faixa de CTA */
.cta-band{border:1px solid var(--line);border-radius:16px;padding:var(--s-6);background:var(--bg-1);display:grid;grid-template-columns:1.5fr auto;gap:var(--s-4);align-items:center}
.cta-band h2{font-size:var(--step-2);max-width:22ch}
.cta-band .sub{color:var(--fg-1);margin-top:10px;max-width:54ch}

/* --- Header mobile: hambúrguer + menu --- */
.burger{display:none;margin-left:auto;width:42px;height:42px;align-items:center;justify-content:center;color:var(--fg);border:1px solid var(--line-2);border-radius:9px;background:none;cursor:pointer;flex:0 0 auto}
.mobile-menu{display:none}
@media(max-width:900px){
  .site-header .wrap{gap:var(--s-2)}
  .nav,.header-right{display:none}
  .burger{display:inline-flex}
  .mobile-menu{display:block;position:fixed;top:68px;left:0;right:0;bottom:0;z-index:45;background:var(--bg);border-top:1px solid var(--line);padding:var(--s-2) var(--gutter) var(--s-6);overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s}
  .mobile-menu.open{opacity:1;visibility:visible;transform:none}
  .mm-nav a{display:block;padding:17px 2px;font-size:1.2rem;font-weight:500;color:var(--fg);border-bottom:1px solid var(--line)}
  .mm-lang{display:flex;gap:6px;padding:16px 0;font-family:var(--font-mono);font-size:.9rem;color:var(--fg-2)}
  .mm-lang a{padding:7px 11px;border-radius:7px}
  .mm-lang a[aria-current]{color:var(--fg);background:rgba(11,14,19,.06)}
  .mobile-menu .btn-primary{display:flex;width:100%;justify-content:center;padding:15px;margin-top:var(--s-2)}
}

@media(max-width:900px){
  .pipeline{grid-template-columns:1fr 1fr}
  .sol-grid{grid-template-columns:1fr}
  .authority{grid-template-columns:1fr;gap:var(--s-4)}
  .cta-band{grid-template-columns:1fr;gap:var(--s-4)}
  .hero .window{max-width:none}
}