/* carousel.css — pista, cards em perspectiva, setas e controles */

.carousel{
  position:relative;
  flex:1;
  min-height:0;            /* sem isso o filho de altura 100% estoura o flex */
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:clamp(6px,1.4vh,14px);
  --offset:178px;      /* distância do card lateral até o centro */
  --tilt:29deg;        /* inclinação dos cards laterais */
  --recede:.9;         /* escala dos cards laterais */
}

/* A pista toma toda a altura que sobrou no showcase e limita no tamanho de projeto */
.carousel__track{
  position:relative;
  width:100%;
  height:100%;
  max-height:462px;
  touch-action:pan-y;
}

/* halo suave atrás do card em destaque */
.carousel__track::before{
  content:"";position:absolute;left:50%;top:50%;
  width:min(900px,100vw);height:100%;transform:translate(-50%,-50%);
  background:radial-gradient(50% 50% at 50% 50%,
    color-mix(in srgb,var(--acc) var(--glow-track),transparent),transparent 70%);
  transition:background var(--dur) var(--ease);
  pointer-events:none;
}

/* ---------- Card ---------- */
.card{
  position:absolute;top:50%;left:50%;
  display:flex;flex-direction:column;
  width:384px;height:100%;
  padding:clamp(16px,2.4vh,32px) clamp(22px,2.2vw,32px) clamp(14px,2vh,28px);
  background-color:var(--panel-base);   /* opaco: impede o card de trás de transparecer */
  background-image:var(--panel);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-card);
  transform-origin:center;
  transition:transform var(--dur) var(--ease),
             background-color var(--dur) var(--ease),
             background-image var(--dur) var(--ease),
             border-color var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease),
             color 320ms var(--ease);
  will-change:transform;
}
.card[data-accent="danfe"]{--card-acc:var(--c-danfe)}
.card[data-accent="radar"]{--card-acc:var(--c-radar)}
.card[data-accent="tributare"]{--card-acc:var(--c-tributare)}

/* véu que aprofunda os cards laterais */
.card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:var(--veil);
  opacity:1;
  transition:opacity var(--dur) var(--ease);
}

/* nó da etapa, no canto superior esquerdo */
.card__node{
  position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;
  background:var(--card-acc);
  box-shadow:0 0 0 4px var(--bg),var(--node-glow);
}

/* ---------- Posições ---------- */
.card.is-active{
  z-index:3;
  transform:translate(-50%,-50%);
  background-color:var(--panel-active-base);
  background-image:var(--panel-active);
  border-color:var(--line);
  box-shadow:var(--shadow-active);
}
.card.is-active::after{opacity:0}

/* linha de acento no topo do card em destaque */
.card.is-active::before{
  content:"";position:absolute;top:-1px;left:0;width:100%;height:1px;
  background:linear-gradient(90deg,var(--card-acc),transparent 78%);
}

.card.is-prev,
.card.is-next{z-index:1;cursor:pointer}

.card.is-prev{
  transform-origin:right center;
  transform:translate(calc(-100% - var(--offset)),-50%)
            perspective(1250px) rotateY(var(--tilt)) scale(var(--recede));
}
.card.is-next{
  transform-origin:left center;
  transform:translate(var(--offset),-50%)
            perspective(1250px) rotateY(calc(var(--tilt) * -1)) scale(var(--recede));
}
.card.is-prev:hover,
.card.is-next:hover{--recede:.92}
.card.is-prev:hover::after,
.card.is-next:hover::after{opacity:.72}

/* ---------- Conteúdo do card ---------- */
.card__top{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  margin-bottom:clamp(10px,1.8vh,18px);
}
.card__step{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted-2);
}
.card__step b{color:var(--card-acc);font-weight:500;margin-right:9px}
.card__scope{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.09em;
  color:var(--muted-2);white-space:nowrap;
}

/* logos: altura óptica equilibrada entre as três marcas */
.card__logo{align-self:center;width:auto;margin-bottom:clamp(8px,1.7vh,18px)}
.card__logo--danfe,
.card__logo--radar,
.card__logo--tributare{height:clamp(38px,5.4vh,58px)}

.card__headline{
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(17px,1.85vh,20px);
  letter-spacing:-.015em;line-height:1.2;margin-bottom:clamp(6px,.8vh,8px);
  text-align:center;
  /* puxa o título para a marca da solução sem perder legibilidade */
  color:color-mix(in srgb,var(--card-acc) 30%,var(--fg));
}
.card__text{
  font-size:clamp(12.5px,1.3vh,13.5px);line-height:1.5;color:var(--muted);
  margin-bottom:clamp(8px,1.7vh,18px);text-align:center;
}

.card__list{border-top:1px solid var(--line-soft);margin-bottom:clamp(8px,1.7vh,18px)}
.card__list li{
  display:flex;align-items:center;gap:10px;
  padding:clamp(4.5px,.95vh,9px) 0;border-bottom:1px solid var(--line-soft);
  font-size:clamp(12px,1.3vh,13px);line-height:1.35;color:var(--fg-2);
}
/* Check em traço fino, na cor da solução */
.card__list li::before{
  content:"";
  width:14px;height:14px;flex:0 0 14px;
  background:var(--card-acc);
  -webkit-mask:var(--icon-check) center / 14px 14px no-repeat;
          mask:var(--icon-check) center / 14px 14px no-repeat;
}

.card__cta{margin-top:auto;width:100%}
/* o CTA do card em destaque veste a cor da solução */
.card.is-active .card__cta{background:var(--card-acc);color:var(--on-acc)}
.card.is-active .card__cta:hover{filter:brightness(1.06)}
/* nos cards laterais o CTA recua para não competir com o card em destaque */
.card:not(.is-active) .card__cta{
  background:transparent;color:var(--fg);border:1px solid var(--line);
}

/* ---------- Setas ---------- */
.carousel__arrow{
  position:absolute;top:50%;translate:0 -50%;z-index:4;
  width:42px;height:42px;border:1px solid var(--line);border-radius:50%;
  display:grid;place-items:center;color:var(--muted);
  background:var(--arrow-bg);
  transition:color 240ms var(--ease),border-color 240ms var(--ease),background 240ms var(--ease);
}
.carousel__arrow svg{width:15px;height:15px}
.carousel__arrow:hover{color:var(--fg);border-color:var(--hover-line);background:var(--hover-soft)}
.carousel__arrow--prev{left:max(var(--pad),calc(50% - 700px))}
.carousel__arrow--next{right:max(var(--pad),calc(50% - 700px))}

/* ---------- Controles ---------- */
/* O card agora ocupa a pista inteira, então o respiro até os indicadores precisa vir */
.carousel__controls{
  display:flex;flex-direction:column;align-items:center;gap:clamp(7px,1.2vh,14px);
  margin-top:clamp(12px,2vh,20px);
}
.dots{display:flex;align-items:center;gap:9px}
.dots__item{
  width:5px;height:5px;border-radius:50%;background:var(--dot-idle);
  transition:width 420ms var(--ease),background 420ms var(--ease),border-radius 420ms var(--ease);
}
.dots__item:hover{background:var(--dot-hover)}
.dots__item.is-active{width:26px;border-radius:3px;background:var(--acc)}

.counter{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted-2);
}
.counter b{color:var(--fg);font-weight:500}

/* ---------- Respiro em telas medias ---------- */
/* Em telas menores o card encolhe junto com o recuo, para que o card lateral nunca */
@media (max-width:1280px){
  .carousel{--offset:162px;--recede:.86}
  .card{width:358px}
  .carousel__track{max-height:446px}
}
@media (max-width:1080px){
  .carousel{--offset:142px;--tilt:32deg;--recede:.82}
  .card{width:326px}
  .carousel__track{max-height:430px}
  .card__headline{font-size:clamp(16px,1.9vh,19px)}
  /* mais estreito, o texto de apoio ganha uma linha: encolhe junto */
  .card__text{font-size:12.5px;line-height:1.45}
  .card__list li{font-size:12.5px;padding:clamp(4px,.95vh,9px) 0}
}

/* ---------- Telas baixas ---------- Os respiros do card já encolhem sozinhos (clamp */
@media (max-height:860px){
  .card__cta{padding-block:12px}
  .card__scope{display:none}          /* a linha de escopo é a primeira a sobrar */
  .card__top{margin-bottom:clamp(8px,1.4vh,16px)}
  .card__text{line-height:1.45;margin-bottom:clamp(7px,1.5vh,16px)}
  .card__logo{margin-bottom:clamp(7px,1.5vh,16px)}
  .card__list{margin-bottom:clamp(7px,1.5vh,16px)}
}
@media (max-height:830px){
  .card__cta{padding-block:10px;font-size:13.5px}
  .card__top{margin-bottom:clamp(7px,1.1vh,12px)}
  .card__logo--danfe,
  .card__logo--radar,
  .card__logo--tributare{height:clamp(32px,4.8vh,46px)}
  .card__list li{padding:clamp(3.5px,.85vh,8px) 0}
  .card__text{margin-bottom:clamp(7px,1.4vh,14px)}
  .card__list{margin-bottom:clamp(7px,1.4vh,14px)}
  .card__logo{margin-bottom:clamp(7px,1.4vh,14px)}
}
/* Altura crítica: a linha de apoio sai */
@media (max-height:700px){
  .card__text{display:none}
  .card__cta{padding-block:9px}
  .card__logo--danfe,
  .card__logo--radar,
  .card__logo--tributare{height:clamp(30px,4.8vh,46px)}
  .card__list li{padding:3.5px 0;font-size:12px}
  .card__top{margin-bottom:6px}
  .card__logo{margin-bottom:7px}
  .card__list{margin-bottom:7px}
  .card__headline{margin-bottom:0}
}

/* ---------- Mobile: um card por vez, sem perspectiva ---------- */
@media (max-width:900px){
  /* um card por vez, sem perspectiva; setas e indicadores dividem a mesma faixa */
  .carousel{--offset:0px;padding-bottom:66px}
  .carousel__track{
    height:auto;display:grid;place-items:start center;
    padding:8px var(--pad);
  }
  .card{
    position:relative;top:auto;left:auto;grid-area:1/1;
    width:min(430px,100%);height:auto;
    transform:none!important;
    transition:opacity 380ms var(--ease),visibility 0s linear 380ms;
    opacity:0;visibility:hidden;
  }
  .card.is-active{opacity:1;visibility:visible;transition-delay:0s,0s}
  .card::after{display:none}

  .carousel__arrow{top:auto;bottom:12px;translate:0 0}
  .carousel__arrow--prev{left:var(--pad)}
  .carousel__arrow--next{right:var(--pad)}

  .carousel__controls{margin-top:-48px;pointer-events:none}
  .carousel__controls .dots{pointer-events:auto}
}