/* Brothers Code — folha partilhada das paginas de projeto */
:root{
  --bg:#0D1117; --panel:#141A24; --panel-2:#1B2331;
  --line:rgba(229,231,235,.11);
  --text:#E5E7EB; --muted:#8E9BB0; --white:#fff;
  --blue:#2563EB; --violet:#7C3AED;
  --grad:linear-gradient(100deg,#2563EB,#7C3AED);
  --accent:#7C3AED;            /* cada pagina redefine */
  --accent-soft:rgba(124,58,237,.18);
  --pad:clamp(20px,5vw,64px);
  --e:cubic-bezier(.16,.84,.28,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:"Poppins",system-ui,sans-serif;font-size:16.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;}
::selection{background:var(--accent-soft);color:#fff;}
img{max-width:100%;display:block;}
.wrap{max-width:1080px;margin:0 auto;padding:0 var(--pad);position:relative;z-index:2;}

/* fundo */
.orb{position:fixed;border-radius:50%;z-index:0;pointer-events:none;}
.orb.a{width:60vw;height:60vw;max-width:760px;max-height:760px;left:-18vw;top:-26vw;
  background:radial-gradient(circle,var(--accent-soft),transparent 62%);}
.orb.b{width:52vw;height:52vw;max-width:660px;max-height:660px;right:-20vw;top:46vh;
  background:radial-gradient(circle,rgba(37,99,235,.16),transparent 62%);}

/* header */
header{position:sticky;top:0;z-index:40;border-bottom:1px solid transparent;
  transition:background .35s,border-color .35s;}
header.stuck{background:rgba(13,17,23,.82);backdrop-filter:blur(16px);border-bottom-color:var(--line);}
.bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0;}
.mark{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--white);}
.mark svg{width:32px;height:36px;}
.mark-txt b{display:block;font-weight:600;font-size:13.5px;letter-spacing:.15em;line-height:1.15;}
.mark-txt span{display:block;font-size:9px;letter-spacing:.28em;color:var(--muted);}
.back{font-size:14px;text-decoration:none;color:var(--muted);display:inline-flex;align-items:center;gap:8px;}
.back:hover{color:var(--white);}
.back i{font-style:normal;transition:transform .3s var(--e);}
/* cabecalho: a marca cede espaco, o link de voltar nunca encolhe */
.bar{min-width:0;}
.mark{min-width:0;flex:0 1 auto;}
.mark svg{flex:none;}
.mark-txt{min-width:0;}
.back{flex:none;white-space:nowrap;}
.back-short{display:none;}
@media(max-width:620px){
  .bar{gap:10px;padding:13px 0;}
  .mark{gap:9px;}
  .mark svg{width:29px;height:33px;}
  .mark-txt b{font-size:12px;letter-spacing:.07em;}
  .mark-txt span{font-size:8px;letter-spacing:.13em;}
  .back{font-size:13px;}
  .back-full{display:none;}
  .back-short{display:inline;}
}
@media(max-width:360px){
  .mark-txt b{font-size:11px;letter-spacing:.03em;}
  .mark-txt span{font-size:7.5px;letter-spacing:.1em;}
}

/* tipografia comum */
.eyebrow{font-size:11.5px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--muted);display:flex;align-items:center;gap:12px;}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px;}
h1{font-weight:700;font-size:clamp(2.3rem,6vw,3.9rem);line-height:1.06;letter-spacing:-.032em;
  color:var(--white);margin:20px 0 0;}
h2{font-weight:600;font-size:clamp(1.5rem,3.4vw,2.1rem);letter-spacing:-.026em;color:var(--white);margin:14px 0 0;}
h3{font-weight:600;font-size:1.08rem;color:var(--white);margin:0 0 8px;}
.lead{font-size:clamp(1.02rem,2vw,1.16rem);color:var(--muted);max-width:56ch;margin:22px 0 0;}
p{color:var(--muted);}
.accent{color:var(--accent);}

/* botoes */
.btn{position:relative;display:inline-block;font-size:14px;font-weight:500;text-decoration:none;
  padding:12px 24px;border-radius:10px;color:var(--white);background:var(--grad);overflow:hidden;
  box-shadow:0 8px 24px -10px rgba(124,58,237,.9);transition:transform .25s var(--e),box-shadow .3s;}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(124,58,237,1);}
.btn.solid{background:var(--accent);box-shadow:0 8px 24px -10px var(--accent);}
.btn.ghost{background:transparent;border:1px solid var(--line);box-shadow:none;color:var(--text);}
.btn.ghost:hover{border-color:var(--accent);color:var(--white);}

/* hero do projeto */
.phero{padding:clamp(44px,8vh,80px) 0 clamp(36px,6vh,64px);}
.phero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px;}
.meta{display:flex;gap:26px;flex-wrap:wrap;margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
.meta div span{display:block;font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);}
.meta div b{font-weight:500;font-size:15px;color:var(--white);}

/* seccoes */
section{padding:clamp(50px,8vh,90px) 0;}
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,60px);align-items:start;}
@media(max-width:860px){.two{grid-template-columns:1fr;}}

.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px;}
.feat{border:1px solid var(--line);border-radius:14px;padding:24px;background:rgba(20,26,36,.55);
  transition:border-color .3s,transform .3s var(--e);}
.feat:hover{border-color:var(--accent);transform:translateY(-4px);}
.feat .ic{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent);font-size:16px;margin-bottom:14px;}
.feat p{margin:0;font-size:14.5px;}
@media(max-width:860px){.feats{grid-template-columns:1fr;}}

.stack{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px;}
.stack span{font-size:11.5px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line);padding:6px 12px;border-radius:99px;}

.timeline{margin-top:34px;border-left:1px solid var(--line);padding-left:26px;}
.tl{position:relative;padding-bottom:26px;}
.tl::before{content:"";position:absolute;left:-31px;top:7px;width:9px;height:9px;border-radius:50%;
  background:var(--panel-2);border:2px solid var(--line);}
.tl.done::before{background:var(--accent);border-color:var(--accent);}
.tl b{display:block;font-weight:500;color:var(--white);font-size:15px;}
.tl span{font-size:13.5px;color:var(--muted);}

/* mockups */
.stage{position:relative;display:grid;place-items:center;padding:20px;}
.stage::before{content:"";position:absolute;width:72%;height:66%;border-radius:50%;filter:blur(64px);
  background:radial-gradient(circle,var(--accent-soft),transparent 68%);}
.shotimg{border-radius:16px;border:1px solid var(--line);box-shadow:0 40px 80px -34px rgba(0,0,0,.9);}

/* faixa final */
.endcta{border-radius:22px;padding:clamp(32px,5vw,58px);text-align:center;
  border:1px solid var(--line);background:linear-gradient(140deg,#161D2A,#0F151F);}
.endcta h2{margin:0 0 10px;}
.endcta .btn{margin-top:22px;}
.sisters{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px;}
.sister{border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;
  display:block;transition:border-color .3s,transform .3s var(--e);}
.sister:hover{border-color:var(--accent);transform:translateY(-4px);}
.sister span{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);}
.sister b{display:block;font-weight:600;color:var(--white);font-size:1.05rem;margin-top:4px;}
@media(max-width:640px){.sisters{grid-template-columns:1fr;}}

footer{border-top:1px solid var(--line);padding:30px 0 44px;margin-top:40px;}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);}
.foot a{color:var(--muted);text-decoration:none;}
.foot a:hover{color:var(--white);}

/* revelacoes */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s var(--e),transform .8s var(--e);}
.rv.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;} .rv{opacity:1;transform:none;}
}