/* ═══════════════════════════════════════════════════════════
   LBCODE — lbcode.com.br
   Conceito: a página é uma placa de circuito. Uma trilha
   contínua roteia do topo ao rodapé e acende conforme a
   leitura avança. Ângulos de 45°/90°, como roteamento real.
   ═══════════════════════════════════════════════════════════ */

:root{
  /* substrato e superfícies */
  --board:      #14102B;
  --board-2:    #221B45;   /* índigo da marca */
  --board-3:    #2C2456;

  /* trilha (a marca) */
  --trace:      #FF3098;
  --trace-dim:  #7A1A4A;
  --trace-soft: rgba(255,48,152,.14);

  /* status "no ar" — único uso do ciano */
  --live:       #3DE0FF;

  /* texto */
  --solder:     #E8E4F3;
  --silk:       #8B84B0;
  --silk-dim:   #5D5680;

  --line:       rgba(255,255,255,.09);

  --display: "Chakra Petch", system-ui, sans-serif;
  --body:    "IBM Plex Sans", system-ui, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, monospace;

  --gut: 26px;            /* largura da calha da trilha */
  --wrap: 1140px;
  --r: 14px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  margin:0;
  background:var(--board);
  color:var(--solder);
  font:400 17px/1.65 var(--body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* malha de silkscreen, quase imperceptível */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.35;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 75%);
}

img{ max-width:100%; display:block; }

a{ color:inherit; }

:focus-visible{
  outline:2px solid var(--trace);
  outline-offset:3px;
  border-radius:4px;
}

.skip{
  position:absolute; left:-9999px; top:0; z-index:99;
  background:var(--trace); color:#fff; padding:12px 18px;
  font:600 14px var(--body); text-decoration:none;
}
.skip:focus{ left:8px; top:8px; }

/* ─── marca (mask: colore via background) ───────────────── */
.mark, .word, .since{
  display:block;
  -webkit-mask-position:center; mask-position:center;
  -webkit-mask-repeat:no-repeat; mask-repeat:no-repeat;
  -webkit-mask-size:contain;     mask-size:contain;
}
.mark{
  -webkit-mask-image:url(assets/logo-mark.svg); mask-image:url(assets/logo-mark.svg);
  aspect-ratio:409.07/267; background:var(--trace);
}
.word{
  -webkit-mask-image:url(assets/logo-word.svg); mask-image:url(assets/logo-word.svg);
  aspect-ratio:365.96/58.88; background:var(--solder);
}
.since{
  -webkit-mask-image:url(assets/logo-since.svg); mask-image:url(assets/logo-since.svg);
  aspect-ratio:376.92/39.75; background:var(--silk-dim);
}

/* ─── tipografia base ──────────────────────────────────── */
h1,h2,h3{ font-family:var(--display); font-weight:600; margin:0; letter-spacing:-.01em; }

h1{
  font-size:clamp(2.15rem, 4.6vw, 3.65rem);
  line-height:1.06; font-weight:700; letter-spacing:-.025em;
}
h1 em{
  font-style:normal; color:var(--trace);
  text-shadow:0 0 42px rgba(255,48,152,.45);
}

h2{ font-size:clamp(1.75rem, 3.4vw, 2.6rem); line-height:1.14; }
h3{ font-size:1.12rem; line-height:1.3; letter-spacing:0; }

p{ margin:0; }

.label{
  font:500 12px/1 var(--mono);
  letter-spacing:.16em; text-transform:uppercase;
  color:var(--trace); margin:0;
}

.lede, .sec-sub{ color:var(--silk); }

/* ─── botões ───────────────────────────────────────────── */
.btn{
  --bg:var(--trace);
  display:inline-flex; align-items:center; justify-content:center;
  padding:15px 26px;
  font:600 15px/1 var(--display); letter-spacing:.01em;
  color:#22062E; background:var(--bg);
  border:1px solid var(--bg); border-radius:10px;
  text-decoration:none; white-space:nowrap;
  transition:transform .18s cubic-bezier(.2,.7,.3,1), box-shadow .18s, background .18s;
  box-shadow:0 0 0 rgba(255,48,152,0);
}
.btn:hover{ transform:translateY(-2px); box-shadow:0 10px 34px -10px rgba(255,48,152,.75); }
.btn:active{ transform:translateY(0); }

.btn-ghost{
  color:var(--solder); background:transparent;
  border-color:rgba(255,255,255,.22);
}
.btn-ghost:hover{ background:rgba(255,255,255,.05); border-color:var(--trace); box-shadow:none; }

.btn-sm{ padding:11px 18px; font-size:13.5px; }

/* ─── abertura em tela cheia ───────────────────────────── */
.intro{
  position:fixed; inset:0; z-index:200; overflow:hidden;
  background:var(--board);
  display:grid; place-items:center;
  opacity:1; transition:opacity .8s ease;
}
.intro.is-out{ opacity:0; pointer-events:none; }
.intro.is-done{ display:none; }

.intro-video{
  width:100%; height:100%;
  object-fit:cover;          /* preenche a tela */
  object-position:center;
  background:var(--board);
}
/* Em tela vertical o vídeo (1,79:1) não tem como preencher sem cortar:
   com `cover` sobraria só o miolo e a assinatura do fim ("LBCODE" + tagline)
   seria decepada nas laterais. A linha mais larga ocupa ~48% da largura do
   quadro, então o vídeo pode chegar a ~208vw antes de ela encostar na borda;
   190vw deixa uma folga de ~4vw de cada lado. O que sobra em cima e embaixo
   fica no fundo --board, que é a mesma cor das bordas do vídeo. */
@media (max-aspect-ratio: 3/4){
  .intro-video{
    /* centralização explícita: item de grid que estoura o contêiner
       fica encostado no início, não centralizado */
    position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
    width:190vw; height:auto; aspect-ratio:832/464;
  }
}

.intro-skip{
  position:absolute; right:22px; bottom:22px;
  font:500 13px/1 var(--body); color:var(--silk);
  background:rgba(20,16,43,.55); border:1px solid rgba(255,255,255,.16);
  border-radius:8px; padding:11px 16px; cursor:pointer;
  backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px);
  transition:color .2s, border-color .2s, background .2s;
}
.intro-skip:hover{ color:var(--solder); border-color:var(--trace); background:rgba(20,16,43,.8); }

/* enquanto a abertura está na tela, a página atrás não rola */
body.intro-ativa{ overflow:hidden; }

/* ─── cabeçalho ────────────────────────────────────────── */
.head{
  position:sticky; top:0; z-index:40;
  background:rgba(20,16,43,.72);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s, background .25s;
}
.head.is-stuck{ border-bottom-color:var(--line); background:rgba(20,16,43,.9); }

.head-in{
  max-width:var(--wrap); margin:0 auto;
  padding:14px 22px;
  display:flex; align-items:center; gap:28px;
}

.brand{ display:flex; align-items:center; gap:11px; text-decoration:none; flex:0 0 auto; }
.brand .mark{ width:38px; }
.brand .word{ width:96px; }

.nav{ display:flex; gap:26px; margin-left:auto; }
.nav a{
  font:500 14.5px/1 var(--body); color:var(--silk);
  text-decoration:none; padding:6px 0; position:relative;
  transition:color .2s;
}
.nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--trace); transition:right .25s cubic-bezier(.2,.7,.3,1);
}
.nav a:hover{ color:var(--solder); }
.nav a:hover::after{ right:0; }

.burger{
  display:none; width:40px; height:40px; margin-left:auto;
  background:none; border:1px solid var(--line); border-radius:9px;
  cursor:pointer; padding:0;
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.burger span{ display:block; width:16px; height:1.5px; background:var(--solder); transition:transform .22s, opacity .22s; }
.burger[aria-expanded="true"] span:first-child{ transform:translateY(3.25px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child{ transform:translateY(-3.25px) rotate(-45deg); }

.nav-mob{
  display:flex; flex-direction:column;
  border-top:1px solid var(--line);
  padding:6px 22px 14px;
}
.nav-mob[hidden]{ display:none; }
.nav-mob a{
  font:500 16px/1 var(--body); color:var(--silk);
  text-decoration:none; padding:14px 0;
  border-bottom:1px solid var(--line);
}
.nav-mob a:last-child{ border-bottom:0; }

/* ─── trilha vertical (assinatura) ─────────────────────── */
main{ position:relative; z-index:1; }

.rail{
  position:absolute; z-index:0;
  left:calc((100vw - var(--wrap))/2 + 22px);
  top:0; bottom:0; width:1px;
  background:linear-gradient(180deg, transparent, var(--board-3) 4%, var(--board-3) 96%, transparent);
}
.rail-fill{
  position:absolute; left:0; top:0; width:1px; height:0;
  background:linear-gradient(180deg, var(--trace-dim), var(--trace));
  box-shadow:0 0 12px rgba(255,48,152,.55);
}
@media (max-width:1240px){ .rail{ left:22px; } }

/* ─── seções ───────────────────────────────────────────── */
.sec{
  position:relative;
  max-width:var(--wrap); margin:0 auto;
  padding:86px 22px 86px calc(22px + var(--gut) + 26px);
}

/* nó da trilha: um "via" da placa */
.node{
  position:absolute; top:94px;
  left:calc(22px - 5px); width:11px; height:11px;
  border-radius:50%; background:var(--board);
  border:1px solid var(--board-3);
  transition:border-color .5s, box-shadow .5s, background .5s;
}
.node::after{
  content:""; position:absolute; inset:3px;
  border-radius:50%; background:var(--board-3);
  transition:background .5s;
}
.sec.is-on .node{ border-color:var(--trace); box-shadow:0 0 16px rgba(255,48,152,.6); }
.sec.is-on .node::after{ background:var(--trace); }

/* derivação horizontal do nó até o conteúdo */
.node::before{
  content:""; position:absolute; left:11px; top:50%;
  width:var(--gut); height:1px; background:var(--board-3);
  transform-origin:left center; transform:scaleX(0);
  transition:transform .55s cubic-bezier(.2,.7,.3,1) .1s, background .5s;
}
.sec.is-on .node::before{ transform:scaleX(1); background:var(--trace-dim); }

.sec-head{ max-width:640px; margin-bottom:52px; }
.sec-head h2{ margin:16px 0 14px; }
.sec-sub{ font-size:1.05rem; }

/* ─── hero ─────────────────────────────────────────────── */
.hero{
  position:relative; isolation:isolate; overflow:hidden;
  min-height:min(94vh, 900px);
  display:flex; flex-direction:column; justify-content:center;
  padding:120px 22px 110px calc(22px + var(--gut) + 26px);
  max-width:var(--wrap); margin:0 auto;
}
/* o vídeo da marca ocupa o hero inteiro; o texto vive por cima dele.
   o hero é limitado a --wrap, então vídeo e véu sangram para 100vw */
.board{
  position:absolute; inset:0; width:100%; height:100%;
  z-index:-1;
}

.hero-grid{
  display:grid; grid-template-columns:minmax(0,1fr) auto;
  align-items:center; gap:56px;
}
.hero-in{ max-width:620px; }

.hero-chip{ width:min(240px, 22vw); position:relative; }
.hero-chip::before{
  content:""; position:absolute; left:50%; top:50%;
  width:340%; aspect-ratio:1; transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(255,48,152,.16), transparent 62%);
  pointer-events:none; z-index:-1;
}
.chip-mark{
  display:block; width:100%; aspect-ratio:409.07/267;
  background:var(--trace);
  -webkit-mask:url(assets/logo-mark.svg) center/contain no-repeat;
  mask:url(assets/logo-mark.svg) center/contain no-repeat;
  filter:drop-shadow(0 0 34px rgba(255,48,152,.5));
}

.eyebrow{
  font:500 12.5px/1 var(--mono);
  letter-spacing:.2em; text-transform:uppercase;
  color:var(--silk); margin:0 0 22px;
}
.eyebrow .sep{ color:var(--trace); margin:0 6px; }

.hero .lede{
  font-size:clamp(1.02rem, 1.55vw, 1.19rem);
  max-width:600px; margin:26px 0 0;
}

.cta-row{ display:flex; flex-wrap:wrap; gap:13px; margin-top:38px; }

.scroll-hint{
  position:absolute; left:calc(22px + var(--gut) + 26px); bottom:44px;
  width:22px; height:34px; border:1px solid var(--board-3);
  border-radius:11px; display:flex; justify-content:center; padding-top:6px;
}
.scroll-hint span{
  width:2px; height:6px; border-radius:1px; background:var(--trace);
  animation:hint 1.9s ease-in-out infinite;
}
@keyframes hint{
  0%,100%{ transform:translateY(0); opacity:1; }
  60%{ transform:translateY(12px); opacity:0; }
}

/* ─── cards de serviço ─────────────────────────────────── */
.grid-4{ display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }

.card{
  position:relative;
  background:linear-gradient(160deg, var(--board-2), #1B1638);
  border:1px solid var(--line); border-radius:var(--r);
  padding:30px 28px 26px;
  transition:border-color .3s, transform .3s cubic-bezier(.2,.7,.3,1);
}
.card::before{
  content:""; position:absolute; left:28px; top:-1px; width:34px; height:1px;
  background:var(--trace); opacity:0; transition:opacity .3s;
}
.card:hover{ border-color:rgba(255,48,152,.4); transform:translateY(-3px); }
.card:hover::before{ opacity:1; }
.card h3{ color:var(--solder); margin-bottom:12px; }
.card p{ font-size:.97rem; color:var(--silk); }

.tags{
  list-style:none; display:flex; flex-wrap:wrap; gap:7px;
  margin:20px 0 0; padding:0;
}
.tags li{
  font:400 11.5px/1 var(--mono); letter-spacing:.05em;
  color:var(--silk-dim); background:rgba(255,255,255,.04);
  border:1px solid var(--line); border-radius:5px; padding:6px 9px;
}

/* ─── projetos ─────────────────────────────────────────── */
.projects{ list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }

.proj{
  border:1px solid var(--line); border-radius:var(--r);
  background:rgba(34,27,69,.5);
  padding:26px 24px 24px;
  transition:border-color .3s, background .3s;
}
.proj:hover{ border-color:rgba(255,48,152,.35); background:rgba(34,27,69,.85); }

.proj-top{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:4px; }
.proj-top h3{ font-size:1.24rem; }

.proj-seg{
  font:400 11.5px/1 var(--mono); letter-spacing:.09em; text-transform:uppercase;
  color:var(--silk-dim); margin:0 0 14px;
}
.proj p:last-child{ font-size:.95rem; color:var(--silk); }

.status{
  flex:0 0 auto;
  font:500 10.5px/1 var(--mono); letter-spacing:.08em; text-transform:uppercase;
  color:var(--silk-dim); border:1px solid var(--line);
  border-radius:20px; padding:5px 10px;
}
.status.is-live{
  color:var(--live); border-color:rgba(61,224,255,.35);
  display:inline-flex; align-items:center; gap:6px;
}
.status.is-live::before{
  content:""; width:5px; height:5px; border-radius:50%;
  background:var(--live); box-shadow:0 0 8px var(--live);
  animation:blink 2.4s ease-in-out infinite;
}
@keyframes blink{ 0%,100%{ opacity:1; } 50%{ opacity:.25; } }

/* ─── processo ─────────────────────────────────────────── */
.steps{ list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(4,1fr); gap:0; }
.steps li{
  position:relative;
  padding:0 26px 0 0;
  border-top:1px solid var(--line);
  padding-top:26px;
}
.steps li::before{
  content:""; position:absolute; left:0; top:-1px; width:26px; height:1px;
  background:var(--trace);
}
.step-n{
  display:block; font:500 12px/1 var(--mono); letter-spacing:.1em;
  color:var(--trace); margin-bottom:16px;
}
.steps h3{ margin-bottom:11px; }
.steps p{ font-size:.95rem; color:var(--silk); }

/* ─── CTA ──────────────────────────────────────────────── */
.cta-sec{ padding-bottom:120px; }
.cta-box{
  position:relative; overflow:hidden;
  border:1px solid rgba(255,48,152,.28); border-radius:20px;
  background:
    radial-gradient(120% 140% at 8% 0%, rgba(255,48,152,.16), transparent 62%),
    linear-gradient(160deg, var(--board-2), #191333);
  padding:56px 52px;
}
.cta-box h2{ margin:16px 0 16px; max-width:24ch; }
.cta-box .sec-sub{ max-width:56ch; }

/* ─── rodapé ───────────────────────────────────────────── */
.foot{
  border-top:1px solid var(--line);
  background:#100C22;
  position:relative; z-index:1;
}
.foot-in{
  max-width:var(--wrap); margin:0 auto;
  padding:58px 22px 40px;
  display:grid; grid-template-columns:2fr 1fr 1fr; gap:36px;
}
.foot-brand{ display:flex; align-items:flex-start; gap:14px; }
.foot-brand .mark{ width:44px; flex:0 0 auto; }
.foot-brand .word{ width:118px; }
.foot-brand .since{ width:118px; margin-top:7px; }

.foot-nav{ display:flex; flex-direction:column; gap:11px; }
.foot-nav .label{ margin-bottom:5px; color:var(--silk-dim); }
.foot-nav a{
  font:400 14.5px/1 var(--body); color:var(--silk);
  text-decoration:none; width:fit-content;
  transition:color .2s;
}
.foot-nav a:hover{ color:var(--trace); }

.foot-legal{
  max-width:var(--wrap); margin:0 auto;
  padding:20px 22px 30px;
  border-top:1px solid var(--line);
  font:400 13px/1.5 var(--body); color:var(--silk-dim);
}

/* ─── botão flutuante ──────────────────────────────────── */
.wa-float{
  position:fixed; right:20px; bottom:20px; z-index:50;
  width:54px; height:54px; border-radius:50%;
  display:grid; place-items:center;
  background:#25D366; color:#0B3E22;
  box-shadow:0 10px 30px -8px rgba(0,0,0,.7);
  transition:transform .2s cubic-bezier(.2,.7,.3,1);
}
.wa-float:hover{ transform:scale(1.07); }

/* ─── entrada por scroll ───────────────────────────────── */
.reveal{ opacity:0; transform:translateY(18px); }
.reveal.is-in{
  opacity:1; transform:none;
  transition:opacity .6s ease, transform .6s cubic-bezier(.2,.7,.3,1);
}

/* ─── responsivo ───────────────────────────────────────── */
@media (max-width:980px){
  .projects{ grid-template-columns:repeat(2,1fr); }
  .steps{ grid-template-columns:repeat(2,1fr); gap:34px 0; }
  .foot-in{ grid-template-columns:1fr 1fr; }
  .foot-brand{ grid-column:1/-1; }
}

@media (max-width:760px){
  body{ font-size:16px; }
  .nav{ display:none; }
  .head .btn-sm{ display:none; }
  .burger{ display:flex; }

  .rail{ left:14px; }
  .sec, .hero{ padding-left:calc(14px + 22px); padding-right:18px; }
  .sec{ padding-top:78px; padding-bottom:78px; }
  .node{ left:calc(14px - 5px); top:86px; }
  .node::before{ width:14px; }
  .hero{ min-height:auto; padding-top:56px; padding-bottom:80px; }
  .scroll-hint{ display:none; }
  .hero-grid{ grid-template-columns:1fr; gap:0; }
  .hero-chip{ width:96px; order:-1; margin-bottom:30px; }

  .grid-4, .projects{ grid-template-columns:1fr; }
  .steps{ grid-template-columns:1fr; gap:30px 0; }
  .steps li{ padding-right:0; }

  .cta-box{ padding:36px 24px; border-radius:16px; }
  .cta-box h2{ max-width:none; }
  .sec-head{ margin-bottom:36px; }

  .foot-in{ grid-template-columns:1fr; gap:30px; padding-top:46px; }
  .wa-float{ width:50px; height:50px; right:16px; bottom:16px; }
  .cta-row .btn{ flex:1 1 auto; }
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .reveal{ opacity:1; transform:none; }
}