/* ============================================================
   Dantas Data Finance — landing page
   Tema escuro único: a identidade é neon sobre azul-quase-preto.
   Um tema claro destruiria o efeito; é escolha, não omissão.
   ============================================================ */

@font-face{font-family:'Chakra Petch';src:url('fonts/chakra-600.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Chakra Petch';src:url('fonts/chakra-700.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Plex Sans';src:url('fonts/plexsans-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Plex Sans';src:url('fonts/plexsans-500.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Plex Mono';src:url('fonts/plexmono-500.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}

:root{
  --void:#04070E;
  --deep:#08111F;
  --panel:rgba(13,28,50,.5);
  --panel-hi:rgba(20,42,72,.62);

  --edge:rgba(79,227,255,.14);
  --edge-mid:rgba(79,227,255,.28);
  --edge-hot:rgba(79,227,255,.60);

  --blue:#2B8CFF;
  --cyan:#4FE3FF;
  --violet:#8B5CF6;

  --white:#E8F3FF;
  --ice:#9DBDDC;
  --ice-dim:#6B87A6;

  --fs-xs:.6875rem;
  --fs-sm:.8125rem;
  --fs-md:1.0625rem;
  --fs-lg:1.1875rem;
  --fs-xl:1.5rem;
  --fs-2xl:2rem;
  --fs-3xl:clamp(2.1rem,4.6vw,3.4rem);

  --gutter:clamp(1.25rem,4vw,2.5rem);
  --maxw:1180px;
  --ease:cubic-bezier(.22,.68,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--void);
  color:var(--ice);
  font-family:'Plex Sans',system-ui,-apple-system,sans-serif;
  font-size:var(--fs-md);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* ---------- cena persistente ---------- */

#stage{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:0;
  pointer-events:none;
}

/* vinheta + varredura fina: assenta o canvas e dá textura de tela */
.vignette{
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:
    repeating-linear-gradient(180deg,rgba(0,0,0,0) 0 2px,rgba(0,0,0,.10) 2px 3px),
    radial-gradient(120% 90% at 50% 45%,transparent 42%,rgba(2,4,10,.70) 100%);
  opacity:.42;
  mix-blend-mode:multiply;
}

header,main,footer{position:relative;z-index:2}

h1,h2,h3{
  font-family:'Chakra Petch',system-ui,sans-serif;
  font-weight:700;
  color:var(--white);
  line-height:1.1;
  letter-spacing:-.015em;
  text-wrap:balance;
  margin:0;
}
p{margin:0}
a{color:inherit}

.mono{
  font-family:'Plex Mono',ui-monospace,monospace;
  font-size:var(--fs-xs);
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
}

.wrap{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
  position:relative;
}

/* ---------- trilhos ---------- */

.rail{
  position:fixed;
  top:0;bottom:0;
  width:3.5rem;
  z-index:40;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:1rem;
  pointer-events:none;
}
.rail-l{left:0;border-right:1px solid var(--edge)}
.rail-r{right:0;border-left:1px solid var(--edge)}

.rail-text{
  writing-mode:vertical-rl;
  transform:rotate(180deg);
  font-family:'Plex Mono',monospace;
  font-size:var(--fs-xs);
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--ice-dim);
}

.pulse{
  width:.4rem;height:.4rem;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 .5rem var(--cyan);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}

/* barra de progresso da leitura — informação real, não enfeite */
.rail-track{
  position:absolute;
  top:16%;bottom:16%;
  width:1px;
  background:var(--edge);
}
.rail-fill{
  position:absolute;
  inset:0 0 auto 0;
  height:100%;
  background:linear-gradient(180deg,var(--cyan),var(--blue));
  transform-origin:top;
  transform:scaleY(var(--progress,0));
  box-shadow:0 0 .6rem rgba(79,227,255,.5);
}

.rail-nav{display:flex;flex-direction:column;gap:.9rem;pointer-events:auto;position:relative}
.rail-dot{
  width:.45rem;height:.45rem;
  border:1px solid var(--edge-mid);
  border-radius:50%;
  background:transparent;
  padding:0;cursor:pointer;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.rail-dot[aria-current="true"]{
  background:var(--cyan);
  border-color:var(--cyan);
  box-shadow:0 0 .55rem var(--cyan);
}

/* ---------- topo ---------- */

.top{
  position:fixed;
  inset:0 0 auto 0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:.85rem var(--gutter);
  backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(4,7,14,.9),rgba(4,7,14,.3));
  border-bottom:1px solid var(--edge);
}
.top-mark{
  display:flex;align-items:center;gap:.7rem;
  font-family:'Chakra Petch',sans-serif;
  font-weight:600;
  font-size:var(--fs-sm);
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ice);
  text-decoration:none;
}
.top-mark b{color:var(--white);font-weight:700}
.top-mark-svg{display:block;width:1.4rem;line-height:0}
.top-mark-svg svg{width:100%;height:auto;display:block}

.top-nav{display:flex;align-items:center;gap:1.75rem}
.top-nav a{
  font-family:'Plex Mono',monospace;
  font-size:var(--fs-xs);
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ice);
  text-decoration:none;
  transition:color .25s var(--ease);
}
.top-nav a:hover,.top-nav a:focus-visible{color:var(--cyan)}

/* ---------- botões ---------- */

.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.8rem 1.5rem;
  font-family:'Plex Mono',monospace;
  font-size:var(--fs-xs);
  letter-spacing:.16em;
  text-transform:uppercase;
  text-decoration:none;
  border:1px solid var(--edge-mid);
  background:transparent;
  color:var(--white);
  cursor:pointer;
  position:relative;
  overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.btn::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(79,227,255,.18),transparent 70%);
  transform:translateX(-110%);
  transition:transform .6s var(--ease);
}
.btn:hover::after,.btn:focus-visible::after{transform:translateX(110%)}
.btn:hover,.btn:focus-visible{border-color:var(--edge-hot);box-shadow:0 0 1.6rem rgba(79,227,255,.18)}

.btn-primary{
  border-color:transparent;
  background:linear-gradient(100deg,var(--blue),var(--cyan));
  color:#02060D;
  font-weight:500;
}
.btn-primary:hover,.btn-primary:focus-visible{box-shadow:0 0 2rem rgba(79,227,255,.4)}

/* ---------- ato 1: hero ---------- */

/* padding-bottom generoso: a marca de "role" mora ali embaixo e não
   pode encostar na faixa de leitura */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:6rem 0 9rem;
}

/* --sp (0→1) é a saída do hero, escrito pelo JS a cada quadro.
   A câmera afasta e desfoca enquanto o próximo ato assume. */
.hero-inner{
  width:100%;
  transform:translate3d(0,calc(var(--sp,0) * -9vh),0) scale(calc(1 - var(--sp,0) * .14));
  opacity:calc(1 - var(--sp,0) * 1.3);
  filter:blur(calc(var(--sp,0) * 7px));
  will-change:transform,opacity,filter;
}
.hero .wrap{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:1.9rem;
  text-align:center;
}

/* ---------- o logo vetorizado ---------- */

.lockup-box{width:min(540px,86vw);line-height:0}
.lockup{
  width:100%;height:auto;display:block;
  filter:drop-shadow(0 0 2.2rem rgba(43,140,255,.4));
}

/* O contorno se desenha; depois o preenchimento sobe por baixo dele. */
.lk-line path{
  stroke-dasharray:1;
  stroke-dashoffset:1;
  opacity:0;
}
.js .lk-fill path{opacity:0}

.ready .lk-line path{animation:draw 1.6s var(--ease) forwards}
.ready .lk-line path:nth-child(1){animation-delay:.15s}
.ready .lk-line path:nth-child(2){animation-delay:.35s}
.ready .lk-line path:nth-child(3){animation-delay:.55s}
@keyframes draw{
  0%{stroke-dashoffset:1;opacity:0}
  8%{opacity:1}
  100%{stroke-dashoffset:0;opacity:1}
}

/* por classe, não nth-child: a marca é composta de várias demãos
   (corpo, coluna azul, pedestal, costura) que devem entrar juntas */
.ready .lk-fill path{animation:fillup .9s var(--ease) forwards}
.ready .lk-fill .lk-p1{animation-delay:.95s}
.ready .lk-fill .lk-p2{animation-delay:1.1s}
.ready .lk-fill .lk-p3{animation-delay:1.25s}
@keyframes fillup{to{opacity:1}}

.ready .lk-line{animation:lineout 1s var(--ease) 1.5s forwards}
@keyframes lineout{to{opacity:0}}

.hero h1{font-size:var(--fs-3xl);max-width:18ch}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--cyan),var(--blue) 55%,var(--violet));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero p.lead{max-width:62ch;font-size:var(--fs-lg)}

.cta-row{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}

.readout{
  display:flex;flex-wrap:wrap;
  border:1px solid var(--edge);
  background:rgba(8,17,31,.45);
  backdrop-filter:blur(8px);
  margin:.5rem 0 0;
}
.readout div{padding:.85rem 1.5rem;border-right:1px solid var(--edge);text-align:left}
.readout div:last-child{border-right:0}
.readout dt{
  font-family:'Plex Mono',monospace;
  font-size:var(--fs-xs);
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--ice-dim);
  margin:0 0 .2rem;
}
.readout dd{
  margin:0;
  font-family:'Chakra Petch',sans-serif;
  font-weight:600;
  font-size:var(--fs-sm);
  letter-spacing:.04em;
  color:var(--white);
}
.readout .live{color:var(--cyan)}

.cue{
  position:absolute;
  bottom:2.5rem;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:.7rem;
  opacity:calc(1 - var(--sp,0) * 2);
}
.cue-line{
  width:1px;height:3rem;
  background:linear-gradient(180deg,var(--cyan),transparent);
  animation:cue 2.2s var(--ease) infinite;
  transform-origin:top;
}
@keyframes cue{0%{transform:scaleY(.2);opacity:0}40%{opacity:1}100%{transform:scaleY(1);opacity:0}}

/* ---------- seções ---------- */

.section{padding:clamp(5rem,11vw,8rem) 0}

.section-head{
  display:flex;flex-direction:column;gap:.9rem;
  max-width:60ch;
  margin-bottom:3.5rem;
}
.section-head h2{font-size:var(--fs-2xl)}

/* ---------- painéis ---------- */

.panel{
  position:relative;
  padding:1.9rem;
  background:var(--panel);
  border:1px solid var(--edge);
  backdrop-filter:blur(10px);
  transition:border-color .35s var(--ease),background .35s var(--ease),transform .35s var(--ease);
}
.panel::before,.panel::after{
  content:'';position:absolute;
  width:.85rem;height:.85rem;
  border:1px solid var(--edge-hot);
  opacity:.75;
  transition:opacity .35s var(--ease);
}
.panel::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.panel::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.panel:hover{border-color:var(--edge-mid);background:var(--panel-hi);transform:translateY(-3px)}
.panel:hover::before,.panel:hover::after{opacity:1}
.panel h3{font-size:var(--fs-xl);margin:.9rem 0 .7rem}

.grid-cap{display:grid;gap:1.25rem;grid-template-columns:repeat(6,1fr)}
.grid-cap > *:nth-child(1){grid-column:span 4}
.grid-cap > *:nth-child(2){grid-column:span 2}
.grid-cap > *:nth-child(3){grid-column:span 2}
.grid-cap > *:nth-child(4){grid-column:span 4}

/* ---------- case ---------- */

.case{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.case-copy{display:flex;flex-direction:column;gap:1.25rem;align-items:flex-start}
.case-copy h2{font-size:var(--fs-2xl)}

.badge{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.35rem .8rem;
  border:1px solid var(--edge-mid);
  background:rgba(79,227,255,.07);
  font-family:'Plex Mono',monospace;
  font-size:var(--fs-xs);
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
}
.badge .pulse{width:.35rem;height:.35rem}

.flow{
  display:flex;flex-direction:column;
  padding:2rem;
  border:1px solid var(--edge);
  background:rgba(8,17,31,.5);
  backdrop-filter:blur(10px);
}
.step{display:flex;align-items:center;gap:1rem;padding:.9rem 0}
.step-node{
  flex:none;width:2.4rem;height:2.4rem;
  display:grid;place-items:center;
  border:1px solid var(--edge-mid);
  border-radius:50%;
  font-family:'Plex Mono',monospace;
  font-size:var(--fs-xs);
  color:var(--ice-dim);
  background:var(--deep);
  transition:color .45s var(--ease),border-color .45s var(--ease),box-shadow .45s var(--ease);
}
.step-label{
  font-family:'Chakra Petch',sans-serif;
  font-weight:600;
  font-size:var(--fs-md);
  color:var(--ice);
  transition:color .45s var(--ease);
}
.step-note{
  display:block;
  font-family:'Plex Sans',sans-serif;
  font-weight:400;
  font-size:var(--fs-sm);
  color:var(--ice-dim);
  letter-spacing:0;
}
.step-link{
  width:1px;height:1.4rem;margin-left:1.2rem;
  background:var(--edge-mid);
  position:relative;overflow:hidden;
}
.step-link::after{content:'';position:absolute;inset:0;background:var(--cyan);transform:translateY(-100%)}

.flow.run .step:nth-child(1) .step-node{color:var(--cyan);border-color:var(--edge-hot);box-shadow:0 0 .9rem rgba(79,227,255,.4)}
.flow.run .step:nth-child(1) .step-label{color:var(--white)}
.flow.run .step:nth-child(3) .step-node{color:var(--cyan);border-color:var(--edge-hot);box-shadow:0 0 .9rem rgba(79,227,255,.4);transition-delay:.55s}
.flow.run .step:nth-child(3) .step-label{color:var(--white);transition-delay:.55s}
.flow.run .step:nth-child(5) .step-node{color:var(--cyan);border-color:var(--edge-hot);box-shadow:0 0 .9rem rgba(79,227,255,.4);transition-delay:1.1s}
.flow.run .step:nth-child(5) .step-label{color:var(--white);transition-delay:1.1s}
.flow.run .step:nth-child(7) .step-node{color:var(--cyan);border-color:var(--edge-hot);box-shadow:0 0 .9rem rgba(79,227,255,.4);transition-delay:1.65s}
.flow.run .step:nth-child(7) .step-label{color:var(--white);transition-delay:1.65s}

/* nth-child, não nth-of-type: elos e etapas são todos <div> */
.flow.run .step-link::after{animation:drop .55s var(--ease) forwards}
.flow.run .step-link:nth-child(2)::after{animation-delay:.25s}
.flow.run .step-link:nth-child(4)::after{animation-delay:.8s}
.flow.run .step-link:nth-child(6)::after{animation-delay:1.35s}
@keyframes drop{from{transform:translateY(-100%)}to{transform:translateY(100%)}}

/* ---------- contato ---------- */

.contact{
  display:flex;flex-direction:column;align-items:center;gap:1.75rem;
  text-align:center;
  padding:clamp(3rem,7vw,5rem) var(--gutter);
  border:1px solid var(--edge);
  background:radial-gradient(38rem 22rem at 50% 0%,rgba(43,140,255,.14),transparent 70%),rgba(8,17,31,.55);
  backdrop-filter:blur(10px);
}
.contact h2{font-size:var(--fs-2xl);max-width:20ch}
.contact p{max-width:52ch}

/* ---------- rodapé ---------- */

.foot{padding:2.5rem 0 3.5rem;border-top:1px solid var(--edge);margin-top:clamp(4rem,9vw,7rem)}
.foot .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem}
.foot .mono{color:var(--ice-dim)}

/* ---------- entradas ---------- */

/* Todo estado inicial escondido vive sob `.js`: sem script, a página
   é entregue legível em vez de em branco. */
.js .rise{
  opacity:0;
  transform:translateY(1.6rem);
  transition:opacity .9s var(--ease),transform .9s var(--ease);
  transition-delay:var(--d,0s);
}
.js .rise.in{opacity:1;transform:none}

/* Varredura lateral: revela o texto como uma leitura de instrumento.
   Feita com uma cortina em `transform` — e não com `clip-path` — porque
   transform é animado no compositor. clip-path repinta na thread principal
   a cada quadro, o que encarece a rolagem em texto grande. */
.js .wipe{position:relative;overflow:hidden}
.js .wipe::after{
  content:'';
  position:absolute;
  inset:0;
  background:var(--void);
  transform:scaleX(1);
  transform-origin:right center;
  transition:transform 1.1s var(--ease);
  transition-delay:var(--d,0s);
  pointer-events:none;
}
.js .wipe.in::after{transform:scaleX(0)}

/* o hero entra sozinho no load, sem depender de scroll */
.js .hero .rise{transition:none;animation:riseIn .9s var(--ease) forwards;animation-delay:var(--d,0s);opacity:0}
@keyframes riseIn{to{opacity:1;transform:none}}

/* ---------- responsivo ---------- */

@media (max-width:1180px){.rail{display:none}}

@media (max-width:860px){
  .top-nav{display:none}
  .case{grid-template-columns:1fr}
  .grid-cap{grid-template-columns:1fr}
  .grid-cap > *{grid-column:span 1 !important}
  .readout{flex-direction:column}
  .readout div{border-right:0;border-bottom:1px solid var(--edge);width:100%}
  .readout div:last-child{border-bottom:0}
}

/* ---------- acessibilidade ---------- */

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  /* precisa carregar `.js` também: as regras que escondem são `.js .rise`,
     de especificidade maior — sem isso o conteúdo ficaria oculto aqui */
  .js .rise,.js .wipe,.rise,.wipe{opacity:1;transform:none}
  .js .wipe::after{display:none}
  .js .lk-fill path,.lk-fill path{opacity:1}
  .lk-line{display:none}
  .hero-inner{transform:none;opacity:1;filter:none}
  .vignette{background:radial-gradient(120% 90% at 50% 45%,transparent 40%,rgba(2,4,10,.72) 100%)}
}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}