/* ===== si · VEIO 02 · Os sinais ===== */
.si-placa{--si-calha:2.9rem;--si-linha:color-mix(in oklab, var(--wf-veio-claro) 70%, transparent);padding-bottom:0}

/* cabeçalho */
.si-cabeca{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:'a a' 'b b';gap:2.2rem clamp(2rem,6vw,7rem);align-items:end;margin-bottom:clamp(3rem,1.6rem + 3.6vw,5rem)}
.si-cabeca-a{grid-area:a}
.si-cabeca-b{grid-area:b;display:flex;justify-content:space-between;align-items:flex-end;gap:2rem 4rem;flex-wrap:wrap}
.si-cabeca-b .si-dica{margin:0}
.si-titulo{max-width:22ch;font-size:clamp(2.1rem,1.1rem + 3.3vw,4.2rem)}
.si-segue{position:absolute;left:1.2rem;bottom:2.2rem;margin:0;font-family:var(--b-mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--wf-tinta-suave)}
.si-por::after{content:"";position:absolute;z-index:-1;inset:-1.2rem -1rem -1.2rem 0;background:linear-gradient(100deg in oklab, rgba(250,246,242,.85), rgba(250,246,242,0));opacity:0;transition:opacity .6s var(--b-ease)}
.si-por.is-on::after{opacity:1}
.si-lead{margin:0}
.si-dica{display:flex;align-items:center;gap:.7rem;margin:1.4rem 0 0;font-family:var(--b-mono);font-size:var(--t-mini);letter-spacing:.06em;color:var(--wf-tinta-suave)}
.si-dica-ponto{width:9px;height:9px;border-radius:50%;background:var(--wf-terracota);box-shadow:0 0 0 4px color-mix(in oklab, var(--wf-terracota) 18%, transparent);flex:none}
.si-dica-toque{display:none}
@media (hover:none){ .si-dica-mouse{display:none} .si-dica-toque{display:inline} }

/* palco */
.si-palco{position:relative}
.si-veios{position:absolute;left:0;top:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:1}
.si-superficie,.si-fundo{position:relative}
.si-sinais,.si-marca,.si-pors,.si-fecho{position:relative;z-index:2}
.si-marca{margin:0;font-family:var(--b-mono);font-size:var(--t-rotulo);letter-spacing:.2em;text-transform:uppercase;color:var(--wf-terracota)}
.si-marca-cima{margin-bottom:2.2rem}

/* sinais */
.si-sinais{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:0 clamp(.9rem,1.6vw,1.8rem);align-items:end}
.si-sinais li{display:flex;align-items:flex-end;min-width:0}
.si-sinal{all:unset;box-sizing:border-box;cursor:pointer;position:relative;display:block;width:100%;padding:.4rem 0 1.6rem;-webkit-tap-highlight-color:transparent}
.si-sinal-txt{display:block;font-family:var(--b-serifa);font-style:italic;font-weight:300;font-size:clamp(1.18rem,.9rem + .7vw,1.55rem);line-height:1.18;color:var(--wf-tinta);
  transition:color .5s var(--b-ease), transform .6s var(--b-ease)}
.si-sinal .si-no{position:absolute;left:0;bottom:-6px}
.si-sinal:hover .si-sinal-txt{color:var(--wf-terracota)}
.si-sinal[aria-pressed="true"] .si-sinal-txt{color:var(--wf-terracota);transform:translateY(-.3rem)}
.si-sinal:focus-visible{outline:2px solid var(--wf-terracota);outline-offset:4px}

/* nó do veio */
.si-no{display:block;width:12px;height:12px;border-radius:50%;background:var(--wf-marfim);border:1px solid var(--wf-veio-claro);z-index:3;
  transition:background .5s var(--b-ease), border-color .5s, box-shadow .6s var(--b-ease)}
.si-sinal[aria-pressed="true"] .si-no,.si-por.is-on::before,.si-fecho.is-on .si-no-fecho{background:var(--wf-terracota);border-color:var(--wf-terracota);box-shadow:0 0 0 5px color-mix(in oklab, var(--wf-terracota) 16%, transparent)}

/* superfície: a linha da pele e a pedra mais funda embaixo */
.si-fundo{padding-top:2.4rem}
.si-fundo::before{content:"";position:absolute;z-index:-1;top:0;left:-50vw;right:-50vw;bottom:0;
  background:linear-gradient(to bottom in oklab, rgba(238,230,224,.9), rgba(232,222,215,.95) 45%, rgba(226,214,206,.97));
  border-top:1px solid color-mix(in oklab, var(--wf-veio-claro) 55%, transparent)}
.si-marca-baixo{color:var(--wf-tinta-suave);text-align:right;position:absolute!important;right:0;top:7.4rem;line-height:1.9}
.si-placa .wf-pedra{opacity:.42}

/* por trás */
.si-pors{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:2rem clamp(1.4rem,2.6vw,3rem);align-items:start;margin-top:3.4rem}
.si-por{position:relative;isolation:isolate;margin:0;padding:.1rem 0 .2rem 1.2rem;border-left:1px solid var(--si-linha);transition:border-color .5s}
.si-por::before{content:"";position:absolute;left:-6.5px;top:-6px;width:12px;height:12px;border-radius:50%;background:var(--wf-marfim);border:1px solid var(--wf-veio-claro);
  transition:background .5s var(--b-ease), border-color .5s, box-shadow .6s var(--b-ease)}
.si-por:nth-child(2){margin-top:2.6rem}
.si-por:nth-child(3){margin-top:5.2rem}
.si-por:nth-child(4){margin-top:7.8rem}
.si-por p{margin:0}
.si-por-k{font-family:var(--b-mono);font-size:var(--t-rotulo);letter-spacing:.18em;text-transform:uppercase;color:var(--wf-tinta-suave);margin-bottom:.9rem!important;transition:color .5s}
.si-por-1{font-family:var(--b-serifa);font-weight:300;font-size:var(--t-h3);line-height:1.18;color:var(--wf-tinta);margin-bottom:.55rem!important}
.si-por-2{font-size:var(--t-texto);line-height:1.6;color:var(--wf-tinta-suave)}
.si-por.is-on{border-left-color:var(--wf-terracota)}
.si-por.is-on .si-por-k{color:var(--wf-terracota)}

/* fecho */
.si-fecho{position:relative;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:2rem 4rem;align-items:end;margin-top:6rem;padding:0 0 var(--wf-respiro) 1.2rem}
.si-no-fecho{position:absolute;left:-6px;top:-6px}
.si-fecho-cita{margin:0}
.si-fecho-cita p{margin:0;font-family:var(--b-serifa);font-weight:200;font-size:clamp(1.6rem,1rem + 2vw,2.7rem);line-height:1.14;letter-spacing:-.01em;color:var(--wf-tinta);text-wrap:balance}
.si-fecho-cita footer{margin-top:1rem;font-family:var(--b-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--wf-tinta-suave)}
.si-fecho-cita footer::before{content:"— "}
.si-fecho-acao{display:grid;justify-items:start;gap:.7rem}
.si-fecho-num{margin:0;font-family:var(--b-mono);font-size:var(--t-mini);letter-spacing:.06em;color:var(--wf-tinta-suave)}

/* veios */
.si-v-nuvem{fill:none;stroke:var(--wf-veio-claro);stroke-linecap:round;opacity:.1}
.si-v-base{fill:none;stroke:var(--wf-veio-claro);stroke-linecap:round;opacity:.8;transition:stroke .6s, opacity .6s}
.si-v-luz{fill:none;stroke:var(--wf-terracota);stroke-linecap:round;opacity:0;transition:opacity .6s var(--b-ease)}
.si-v-pulso{fill:none;stroke:var(--wf-terracota);stroke-linecap:round;opacity:0}
.si-v.is-on .si-v-luz{opacity:.9}
.si-v.is-on .si-v-nuvem{stroke:var(--wf-terracota);opacity:.14}
.si-v.is-on .si-v-pulso{opacity:1}

/* ---------- tablet e celular: uma calha à esquerda onde correm os veios ---------- */
@media (max-width:1099px){
  .si-cabeca{grid-template-columns:1fr;gap:1.4rem}
  .si-titulo{max-width:16ch}
  .si-cabeca-b{display:block}
  .si-cabeca-b .si-dica{margin-top:1.4rem}
  .si-segue{left:1.1rem;bottom:1.6rem}
  .si-marca{padding-left:var(--si-calha)}
  .si-marca-baixo{text-align:left;position:relative!important;top:auto;right:auto}
  .si-marca-baixo br{display:none}
  .si-marca-cima{margin-bottom:.8rem}
  .si-sinais{grid-template-columns:1fr;gap:0}
  .si-sinal{padding:.75rem 0 .75rem var(--si-calha);min-height:48px}
  .si-sinal .si-no{left:calc(var(--si-calha) - 1.6rem);bottom:auto;top:calc(.75rem + .55em)}
  .si-sinal-txt{font-size:clamp(1.22rem,1.05rem + .8vw,1.5rem)}
  .si-sinal[aria-pressed="true"] .si-sinal-txt{transform:translateX(.3rem)}
  .si-superficie{padding-bottom:2rem}
  .si-pors{grid-template-columns:1fr;gap:3rem;margin-top:2.6rem;padding-left:var(--si-calha)}
  .si-por:nth-child(n){margin-top:0}
  .si-por{padding-left:1.1rem}
  .si-fecho{grid-template-columns:1fr;margin:4.5rem 0 0 var(--si-calha);gap:2rem}
}
@media (max-width:520px){
  .si-placa{--si-calha:2.3rem}
  .si-dica{font-size:.875rem;letter-spacing:.02em}
  .si-fecho-acao,.si-cta{width:100%}
  .si-cta{justify-content:center}
}