/* ==========================================================================
   FORRO MODULAR: levanta a placa
   1) cena de tela cheia na mesma sala 3D do drywall: o entreforro com duto e
      eletrocalha, a cantoneira na parede, as longarinas, as travessas clicando,
      as placas deitando no quadro, as luminárias acendendo e, no fim, uma placa
      que sobe e sai do lugar. O visitante troca a placa ali mesmo;
   2) qual placa para cada lugar (guia honesto, com o que é da loja e o que é
      sob consulta);
   3) os produtos;
   4) EPS: do forro à laje;
   5) calculadora do forro modular.
   Medidas da sala em pixels vêm do modular.js (--W, --H, --D, --m = 1 metro).
   ========================================================================== */

.md-cena { position: relative; height: 460vh; background: #0E0F12; }

.md-stage {
  --md: 0;
  --W: 1600px;
  --H: 1080px;
  --D: 2400px;
  --m: 400px;
  --cant: clamp(0, calc((var(--md) - 0.05) / 0.08), 1);
  --long: clamp(0, calc((var(--md) - 0.1) / 0.14), 1);
  --trav: clamp(0, calc((var(--md) - 0.22) / 0.14), 1);
  --placa: clamp(0, calc((var(--md) - 0.34) / 0.3), 1);
  --luz: clamp(0, calc((var(--md) - 0.62) / 0.1), 1);
  --abre: clamp(0, calc((var(--md) - 0.72) / 0.12), 1);
  --fim: clamp(0, calc((var(--md) - 0.8) / 0.1), 1);
  --plenum: 0.45;
  --cor-perfil: #F4F3EF;
  --tex: url('../img/texturas/modular/eps.jpg');
  --tom-placa: #ECEBE7;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  background: #0E0F12;
  perspective: 900px;
  perspective-origin: 50% 96%;
}
.md-stage[data-placa="gesso"] { --tex: url('../img/texturas/modular/gesso.jpg'); --tom-placa: #F1F0EC; }
.md-stage[data-placa="mineral"] { --tex: url('../img/texturas/modular/mineral.jpg'); --tom-placa: #EFEDE8; }
.md-stage[data-placa="preto"] { --tex: url('../img/texturas/modular/preto.jpg'); --tom-placa: #2A2B2E; --cor-perfil: #1D1E21; }

.md-sala {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  transform: translateZ(calc(var(--D) * 0.28 * var(--md)));
}
.md-sala > div { position: absolute; transform-origin: 0 0; transform-style: preserve-3d; }
.md-teto { left: calc(var(--W) * -0.5); top: calc(var(--H) * -0.5); width: var(--W); height: var(--D); transform: rotateX(-90deg); }
.md-chao { left: calc(var(--W) * -0.5); top: calc(var(--H) * 0.5); width: var(--W); height: var(--D); transform: translateZ(calc(var(--D) * -1)) rotateX(90deg); }
.md-fundo { left: calc(var(--W) * -0.5); top: calc(var(--H) * -0.5); width: var(--W); height: var(--H); transform: translateZ(calc(var(--D) * -1)); }
.md-esq { left: calc(var(--W) * -0.5); top: calc(var(--H) * -0.5); width: var(--D); height: var(--H); transform: rotateY(90deg); }
.md-dir { left: calc(var(--W) * 0.5); top: calc(var(--H) * -0.5); width: var(--D); height: var(--H); transform: translateZ(calc(var(--D) * -1)) rotateY(-90deg); }

/* o entreforro: laje, duto flexível, eletrocalha com cabos e conduíte */
.md-laje {
  position: absolute;
  inset: 0;
  /* 29/09 (noite): era o reboco.png em soft-light sobre um degradê #8C8983 a
     #7A7771; a mescla, refeita pelo Firefox a cada quadro, deixava a cena acima
     de 1 s por quadro. Agora vem pronta na imagem, com a cor do meio. */
  background: url('../img/texturas/cena/reboco-laje-modular.jpg') 0 0 / calc(var(--m) * 1.4) calc(var(--m) * 1.4);
}
.md-duto {
  position: absolute;
  left: calc(var(--m) * 1.92);
  top: 0;
  width: calc(var(--m) * 0.36);
  height: 100%;
  border-radius: calc(var(--m) * 0.18);
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.35) 0 calc(var(--m) * 0.012), rgba(0, 0, 0, 0.18) calc(var(--m) * 0.012) calc(var(--m) * 0.035)),
    linear-gradient(90deg, #7F858C 0%, #D6DADE 38%, #EEF0F2 50%, #A9AFB5 70%, #6C7278 100%);
  box-shadow: 0 0 calc(var(--m) * 0.08) rgba(0, 0, 0, 0.5);
  transform: translateZ(calc(var(--m) * 0.2));
}
.md-calha {
  position: absolute;
  left: 0;
  top: calc(var(--m) * 1.42);
  width: 100%;
  height: calc(var(--m) * 0.2);
  background:
    repeating-linear-gradient(180deg, #2B2E33 0 calc(var(--m) * 0.018), #3E4248 calc(var(--m) * 0.018) calc(var(--m) * 0.03), #B8331F calc(var(--m) * 0.03) calc(var(--m) * 0.045), #2B2E33 calc(var(--m) * 0.045) calc(var(--m) * 0.06)),
    #8A9097;
  box-shadow: inset 0 0 0 calc(var(--m) * 0.012) #A8AEB4, 0 calc(var(--m) * 0.02) calc(var(--m) * 0.04) rgba(0, 0, 0, 0.45);
  transform: translateZ(calc(var(--m) * 0.28));
}
.md-conduite {
  position: absolute;
  left: 12%;
  top: 62%;
  width: 70%;
  height: calc(var(--m) * 0.05);
  border-radius: 999px;
  background: repeating-linear-gradient(90deg, #E0B43C 0 calc(var(--m) * 0.018), #B98B1E calc(var(--m) * 0.018) calc(var(--m) * 0.03));
  transform: translateZ(calc(var(--m) * 0.05)) rotate(6deg);
}

/* a grade de perfis T: cantoneira em volta, longarina a cada 1,25 m,
   travessa de 1,25 m a cada 62,5 cm e travessa de 62,5 cm no meio */
.md-grade { position: absolute; inset: 0; transform-style: preserve-3d; pointer-events: none; }
.md-grade > i { position: absolute; inset: 0; transform: translateZ(calc(var(--m) * (var(--plenum) + 0.004))); }
.md-cant {
  box-shadow: inset 0 0 0 calc(var(--m) * 0.03) var(--cor-perfil);
  opacity: var(--cant);
}
/* 29/09 (noite): a sombrinha em volta do perfil era filter: drop-shadow, que o
   Firefox refazia no teto inteiro a cada quadro (o clip-path anda com a rolagem).
   Agora ela vem desenhada no próprio degradê, 1 cm de cada lado do perfil. */
.md-long {
  background: repeating-linear-gradient(90deg,
    var(--cor-perfil) 0 calc(var(--m) * 0.012),
    rgba(0, 0, 0, 0.28) calc(var(--m) * 0.012), rgba(0, 0, 0, 0) calc(var(--m) * 0.022),
    rgba(0, 0, 0, 0) calc(var(--m) * 1.228), rgba(0, 0, 0, 0.28) calc(var(--m) * 1.238),
    var(--cor-perfil) calc(var(--m) * 1.238) calc(var(--m) * 1.25));
  clip-path: inset(0 0 calc((1 - var(--long)) * 100%) 0);
}
.md-trav {
  background: repeating-linear-gradient(180deg,
    var(--cor-perfil) 0 calc(var(--m) * 0.012),
    rgba(0, 0, 0, 0.28) calc(var(--m) * 0.012), rgba(0, 0, 0, 0) calc(var(--m) * 0.022),
    rgba(0, 0, 0, 0) calc(var(--m) * 0.603), rgba(0, 0, 0, 0.28) calc(var(--m) * 0.613),
    var(--cor-perfil) calc(var(--m) * 0.613) calc(var(--m) * 0.625));
  clip-path: inset(0 0 calc((1 - var(--trav)) * 100%) 0);
}
.md-trav625 {
  background: repeating-linear-gradient(90deg, transparent 0 calc(var(--m) * 0.613), var(--cor-perfil) calc(var(--m) * 0.613) calc(var(--m) * 0.637), transparent calc(var(--m) * 0.637) calc(var(--m) * 1.25));
  clip-path: inset(0 0 calc((1 - var(--trav)) * 100%) 0);
}

/* as placas: montadas pelo modular.js, uma por módulo de 62,5 cm */
.md-placas { position: absolute; inset: 0; transform-style: preserve-3d; }
.md-placa {
  --p: clamp(0, calc((var(--placa) - var(--atraso) * 0.8) / 0.2), 1);
  position: absolute;
  background: var(--tex) center / calc(var(--m) * 0.625) calc(var(--m) * 0.625), var(--tom-placa);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.18);
  transform-origin: 50% 50%;
  transform:
    translateZ(calc(var(--m) * (var(--plenum) + 0.55 * (1 - var(--p)))))
    rotateX(calc(58deg * (1 - var(--p))));
  opacity: clamp(0, calc(var(--p) * 4), 1);
}
.md-placa::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10, 12, 16, 0.5);
  opacity: calc(1 - var(--luz));
}
/* luminária de embutir 62,5 x 62,5 */
.md-placa.is-luz { background: linear-gradient(180deg, #FFFFFF, #F4F6F8); box-shadow: inset 0 0 0 calc(var(--m) * 0.02) #D9DCE0, 0 0 calc(var(--m) * 0.7 * var(--luz)) calc(var(--m) * 0.12 * var(--luz)) rgba(255, 248, 232, 0.55); }
.md-placa.is-luz::after { background: rgba(255, 252, 240, 0.9); opacity: var(--luz); mix-blend-mode: screen; }
/* a placa que sobe e sai do lugar: primeiro sobe para o entreforro, depois desliza */
.md-placa.is-abre {
  --sobe: clamp(0, calc(var(--abre) / 0.5), 1);
  --anda: clamp(0, calc((var(--abre) - 0.45) / 0.55), 1);
  transform:
    translateX(calc(var(--m) * 0.5 * var(--anda)))
    translateZ(calc(var(--m) * (var(--plenum) + 0.55 * (1 - var(--p)) - 0.14 * var(--sobe))))
    rotateX(calc(58deg * (1 - var(--p)) - 8deg * var(--sobe) * (1 - var(--anda))));
}
.md-stage[data-placa="preto"] .md-placa::after { background: rgba(0, 0, 0, 0.35); }

/* paredes, janela e chão */
/* 29/09 (noite): o reboco em soft-light sobre #E3DFD7 vem pronto na imagem, e
   as paredes do lado, que tinham filter: brightness(0,86 e 0,8), ganharam as
   mesmas cores já escurecidas. Filtro e mescla eram refeitos a cada quadro. */
.md-parede {
  background:
    linear-gradient(0deg, #F4F2EE 0 calc(var(--m) * 0.1), #CFCBC4 calc(var(--m) * 0.1) calc(var(--m) * 0.108), transparent calc(var(--m) * 0.108)),
    url('../img/texturas/cena/reboco-parede.jpg') 0 0 / calc(var(--m) * 1.2) calc(var(--m) * 1.2);
}
.md-parede.md-esq {
  background:
    linear-gradient(0deg, #D2D0CD 0 calc(var(--m) * 0.1), #B2AFA9 calc(var(--m) * 0.1) calc(var(--m) * 0.108), transparent calc(var(--m) * 0.108)),
    url('../img/texturas/cena/reboco-parede-86.jpg') 0 0 / calc(var(--m) * 1.2) calc(var(--m) * 1.2);
}
.md-parede.md-dir {
  background:
    linear-gradient(0deg, #C3C2BE 0 calc(var(--m) * 0.1), #A6A29D calc(var(--m) * 0.1) calc(var(--m) * 0.108), transparent calc(var(--m) * 0.108)),
    url('../img/texturas/cena/reboco-parede-80.jpg') 0 0 / calc(var(--m) * 1.2) calc(var(--m) * 1.2);
}
.md-janela {
  position: absolute;
  left: 30%;
  width: 40%;
  top: 30%;
  height: 40%;
  background: linear-gradient(90deg, transparent 32.5%, #DAD6CF 32.5% 34%, transparent 34% 66%, #DAD6CF 66% 67.5%, transparent 67.5%), linear-gradient(180deg, #CFE3F2 0%, #F2E6CF 100%);
  box-shadow: 0 0 0 calc(var(--m) * 0.04) #D9D5CE;
}
.md-chao { background: linear-gradient(180deg, rgba(10, 8, 6, 0.3), rgba(10, 8, 6, 0.08)), url('../img/texturas/cena/piso-concrete-lvt.jpg') 0 0 / calc(var(--m) * 1.8) calc(var(--m) * 0.85); }

.md-sombra { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, rgba(14, 18, 26, 0.3) 0%, rgba(14, 18, 26, 0.55) 100%); opacity: calc(1 - 0.85 * var(--luz)); }
.md-vinheta { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(120% 100% at 50% 42%, rgba(6, 7, 9, 0) 42%, rgba(6, 7, 9, 0.9) 100%); }

/* ---------- o texto da cena ---------- */
.md-txt { position: absolute; inset: 0; pointer-events: none; }
.md-bruma {
  position: absolute; left: 50%; top: 40%;
  width: min(130vw, 1100px); height: min(56vh, 460px);
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(8, 9, 12, 0.72) 0%, rgba(8, 9, 12, 0.42) 52%, rgba(8, 9, 12, 0) 100%);
  opacity: calc(1 - var(--md) * 6);
}
.md-kicker { display: block; margin-bottom: 12px; font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #FFC40E; }
.md-t1 {
  position: absolute; left: 50%; top: 40%;
  width: min(90vw, 18ch);
  transform: translate(-50%, calc(-50% - 110px * var(--md)));
  text-align: center;
  font-family: var(--font-display); font-weight: var(--display-weight); letter-spacing: var(--display-tracking);
  line-height: 1.06; font-size: clamp(1.9rem, 5.2vw, 3.8rem); color: #F7F4EE;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.92), 0 1px 4px rgba(0, 0, 0, 0.8);
  opacity: calc(1 - var(--md) * 6);
}
.md-etapas { margin: 0; padding: 0; list-style: none; position: absolute; left: clamp(16px, 5vw, 64px); bottom: clamp(22px, 7vh, 72px); width: min(88vw, 440px); height: 5.6em; }
.md-etapa { position: absolute; inset: auto 0 0 0; display: grid; grid-template-columns: 40px 1fr; gap: 2px 12px; color: #F4F1EA; text-shadow: 0 1px 14px rgba(0, 0, 0, 0.95); }
.md-etapa b { grid-row: span 2; font-family: var(--font-display); font-weight: var(--display-weight); font-size: 2rem; line-height: 1; color: #FFC40E; }
.md-etapa strong { font-family: var(--font-display); font-weight: var(--display-weight); font-size: clamp(1.05rem, 1.8vw, 1.3rem); }
.md-etapa span { font-size: 0.92rem; color: #D6D2C8; line-height: 1.45; }
.md-etapa.e1 { opacity: clamp(0, min(calc((var(--md) - 0.07) / 0.04), calc((0.22 - var(--md)) / 0.03)), 1); }
.md-etapa.e2 { opacity: clamp(0, min(calc((var(--md) - 0.23) / 0.04), calc((0.36 - var(--md)) / 0.03)), 1); }
.md-etapa.e3 { opacity: clamp(0, min(calc((var(--md) - 0.37) / 0.04), calc((0.62 - var(--md)) / 0.03)), 1); }
.md-etapa.e4 { opacity: clamp(0, min(calc((var(--md) - 0.63) / 0.04), calc((0.8 - var(--md)) / 0.03)), 1); }
.md-t2 {
  position: absolute; left: 50%; bottom: clamp(20px, 5vh, 56px);
  transform: translate(-50%, calc(22px * (1 - var(--fim))));
  width: min(92vw, 680px); text-align: center; opacity: var(--fim);
}
.md-t2::before {
  content: ""; position: absolute; z-index: -1; left: -60vw; right: -60vw; top: -30%; bottom: -40%;
  background: linear-gradient(180deg, rgba(8, 9, 12, 0) 0%, rgba(8, 9, 12, 0.72) 18%, rgba(8, 9, 12, 0.82) 60%, rgba(8, 9, 12, 0.88) 100%);
  pointer-events: none;
}
.md-t2 h2 { font-size: clamp(1.35rem, 3.2vw, 2.3rem); color: #FFFFFF; text-shadow: 0 2px 22px rgba(0, 0, 0, 0.9); margin-bottom: 12px; text-wrap: balance; }
.md-t2 p { font-size: clamp(0.92rem, 1.5vw, 1.02rem); line-height: 1.65; color: #ECE8DF; text-shadow: 0 1px 16px rgba(0, 0, 0, 0.95); max-width: 58ch; margin: 0 auto; }
.md-cortina { position: absolute; left: 0; right: 0; bottom: 0; height: 46%; background: linear-gradient(180deg, rgba(8, 9, 12, 0) 0%, rgba(8, 9, 12, 0.5) 44%, rgba(8, 9, 12, 0.93) 100%); opacity: var(--fim); }
.md-dica {
  position: absolute; left: 50%; bottom: clamp(18px, 3.4vh, 34px); transform: translateX(-50%);
  display: flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: #D8D2C4;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.9); opacity: calc(1 - var(--md) * 7); pointer-events: none;
}
.md-dica span { width: 1px; height: 26px; background: linear-gradient(180deg, #D8D2C4 0%, rgba(216, 210, 196, 0) 100%); animation: ripa-desce 1.9s var(--ease-saida) infinite; }
.md-tons { margin-top: clamp(14px, 2.6vh, 24px); display: flex; flex-direction: column; align-items: center; gap: 10px; visibility: hidden; pointer-events: none; }
.md-tons.tons-ativos { visibility: visible; pointer-events: auto; }
.md-tons-rotulo { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: #D8D2C4; text-shadow: 0 1px 8px rgba(0, 0, 0, 0.9); }
.md-tons-lista { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.md-tom {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 6px 14px 6px 6px;
  border: 1.5px solid rgba(247, 242, 233, 0.3); border-radius: 4px;
  background: rgba(10, 10, 12, 0.62); color: #F7F2E9;
  font-family: var(--font-display); font-weight: var(--display-weight); letter-spacing: var(--display-tracking); font-size: 0.9rem;
  cursor: pointer; transition: border-color 0.2s ease, background-color 0.2s ease;
}
.md-tom:hover { border-color: var(--yellow); }
.md-tom:focus-visible { outline: 2px solid var(--yellow); outline-offset: 3px; }
.md-tom[aria-pressed="true"] { border-color: var(--yellow); background: rgba(58, 45, 8, 0.8); }
.md-tom i { width: 30px; height: 30px; border-radius: 3px; background-size: cover; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18); }
.md-tom[data-placa="eps"] i { background-image: url('../img/texturas/modular/eps.jpg'); }
.md-tom[data-placa="gesso"] i { background-image: url('../img/texturas/modular/gesso.jpg'); }
.md-tom[data-placa="mineral"] i { background-image: url('../img/texturas/modular/mineral.jpg'); }
.md-tom[data-placa="preto"] i { background-image: url('../img/texturas/modular/preto.jpg'); }
.md-tom-ficha { font-size: 0.84rem; line-height: 1.5; color: #EFE9DC; text-shadow: 0 1px 10px rgba(0, 0, 0, 0.95); max-width: 54ch; }

/* ---------- 2. qual placa para cada lugar ---------- */
.md-guia { background: #F2F1EE; color: var(--navy); padding: clamp(64px, 9vw, 104px) 0; }
.md-guia .md-kicker, .md-eps .md-kicker, .md-produtos .md-kicker { color: #8A6400; }
.md-cabeca { max-width: 64ch; margin-bottom: clamp(22px, 3vw, 32px); }
.md-cabeca h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); line-height: 1.08; margin-bottom: 12px; text-wrap: balance; }
.md-cabeca p { color: #4A5163; line-height: 1.65; }
.md-tabela-rolo { overflow-x: auto; border-radius: 6px; background: #FFFFFF; box-shadow: 0 18px 40px rgba(40, 50, 75, 0.08); }
.md-tabela { width: 100%; min-width: 820px; border-collapse: collapse; font-size: 0.92rem; }
.md-tabela th, .md-tabela td { padding: 13px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid #ECEAE5; }
.md-tabela thead th { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #6B7285; background: #FAF9F7; }
.md-tabela tbody th { font-family: var(--font-display); font-size: 1rem; color: var(--navy); min-width: 170px; }
.md-tabela tbody th small { display: block; margin-top: 3px; font-family: var(--font-text); font-weight: 400; font-size: 0.8rem; color: #6B7285; }
.md-tabela td { color: #3A4256; line-height: 1.45; }
.md-nivel { display: inline-flex; gap: 3px; vertical-align: middle; margin-right: 6px; }
.md-nivel i { width: 8px; height: 8px; border-radius: 2px; background: #DAD8D2; }
.md-nivel[data-n="1"] i:nth-child(-n+1), .md-nivel[data-n="2"] i:nth-child(-n+2), .md-nivel[data-n="3"] i:nth-child(-n+3) { background: #C99700; }
.md-selo { display: inline-block; padding: 3px 8px; border-radius: 4px; font-size: 0.76rem; font-weight: 700; white-space: nowrap; }
.md-selo.is-loja { background: #DFF2E4; color: #1F5E33; }
.md-selo.is-consulta { background: #EDEBE6; color: #5A6275; }
.md-tabela tr.is-consulta th, .md-tabela tr.is-consulta td { background: #FCFBF9; }
.md-guia-nota { margin-top: 14px; font-size: 0.84rem; color: #6B7285; line-height: 1.55; max-width: 80ch; }

/* ---------- 3. produtos ---------- */
.md-produtos { padding-block: clamp(56px, 8vw, 96px); }
.md-produtos .product-card .badge { z-index: 1; }

/* ---------- 4. EPS: do forro à laje ---------- */
.md-eps { background: #FFFFFF; padding: clamp(64px, 9vw, 104px) 0; border-top: 1px solid #ECEAE5; }
.md-eps-grade { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(18px, 3vw, 32px); }
.md-eps-card { display: grid; grid-template-rows: auto 1fr; border-radius: 6px; overflow: hidden; background: #F4F3EF; }
.md-eps-card figure { margin: 0; display: grid; place-items: center; padding: clamp(18px, 3vw, 30px); background: radial-gradient(80% 70% at 50% 45%, #FFFFFF 0%, #E9E7E2 100%); min-height: 220px; }
.md-eps-card img { max-width: 78%; max-height: 220px; object-fit: contain; filter: drop-shadow(0 16px 18px rgba(40, 34, 24, 0.2)); }
.md-eps-corpo { padding: clamp(18px, 2.6vw, 28px); display: grid; gap: 10px; align-content: start; }
.md-eps-corpo h3 { font-size: 1.25rem; }
.md-eps-corpo p { color: #4A5163; line-height: 1.6; }
.md-eps-corpo ul { margin: 0; padding-left: 1.1em; color: #3A4256; line-height: 1.6; display: grid; gap: 4px; }
.md-laje-calc { margin-top: 6px; display: grid; gap: 10px; padding: 14px; border-radius: 4px; background: #FFFFFF; }
.md-laje-calc .md-campos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.md-laje-res { font-size: 0.95rem; color: #3A4256; line-height: 1.5; }
.md-laje-res b { color: var(--navy); font-size: 1.1rem; }
.md-link { color: var(--navy); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 5. calculadora ---------- */
.md-calc { background: #1D2230; color: #F2F4F8; padding: clamp(64px, 9vw, 104px) 0; }
.md-calc .md-cabeca { text-align: center; margin-inline: auto; }
.md-calc .md-cabeca h2 { color: #FFFFFF; }
.md-calc .md-cabeca p { color: #C9CEDA; }
.md-calc-grade { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(22px, 4vw, 44px); align-items: start; }
.md-form { display: grid; gap: 16px; }
.md-campos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.md-campo { display: grid; gap: 6px; font-size: 0.85rem; }
.md-calc .md-campo { color: #C9CEDA; }
.md-laje-calc .md-campo { color: #4A5163; }
.md-campo input, .md-campo select {
  width: 100%; min-width: 0; padding: 11px 12px;
  border-radius: 4px; font: inherit; font-size: 1rem; font-variant-numeric: tabular-nums;
}
.md-calc .md-campo input, .md-calc .md-campo select { border: 1.5px solid rgba(255, 255, 255, 0.22); background: #262C3C; color: #FFFFFF; }
.md-laje-calc .md-campo input { border: 1.5px solid #CCD1DC; background: #FFFFFF; color: var(--navy); }
.md-campo input:focus-visible, .md-campo select:focus-visible { outline: 2px solid #FFC40E; outline-offset: 1px; }
.md-campo small { font-size: 0.78rem; color: #9AA2B4; }
.md-laje-calc .md-campo small { color: #6B7285; }
.md-seg { display: inline-flex; border: 1.5px solid rgba(255, 255, 255, 0.26); border-radius: 4px; overflow: hidden; justify-self: start; }
.md-seg button { padding: 10px 16px; border: 0; border-left: 1px solid rgba(255, 255, 255, 0.14); background: transparent; color: #F2F4F8; font: 600 0.92rem var(--font-text); cursor: pointer; }
.md-seg button:first-child { border-left: 0; }
.md-seg button[aria-pressed="true"] { background: #FFC40E; color: #1D2230; }
.md-seg button:focus-visible { outline: 2px solid #FFC40E; outline-offset: -3px; }
.md-grupo-rotulo { display: block; margin-bottom: 8px; font-size: 0.85rem; color: #C9CEDA; }
.md-desenho { border-radius: 4px; background: rgba(255, 255, 255, 0.06); padding: 14px; }
.md-desenho svg { display: block; width: 100%; height: auto; max-height: 260px; }
.md-resultado { display: grid; gap: 14px; }
.md-numeros { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.md-numero { padding: 14px; border-radius: 4px; border: 1px solid rgba(255, 255, 255, 0.14); }
.md-numero span { display: block; font-size: 0.78rem; color: #9AA2B4; }
.md-numero b { display: block; margin-top: 4px; font-family: var(--font-display); font-size: clamp(1.3rem, 2.4vw, 1.7rem); color: #FFC40E; font-variant-numeric: tabular-nums; }
.md-lista-caixa { padding: 14px 16px; border-radius: 4px; background: rgba(255, 255, 255, 0.06); }
.md-lista-caixa > b { display: block; margin-bottom: 8px; font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: #9AA2B4; }
.md-lista { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.md-lista td { padding: 7px 0; border-top: 1px solid rgba(255, 255, 255, 0.12); vertical-align: top; line-height: 1.35; }
.md-lista tr:first-child td { border-top: 0; }
.md-lista .num { padding-left: 12px; text-align: right; white-space: nowrap; font-weight: 700; font-variant-numeric: tabular-nums; }
.md-lista small { font-weight: 400; color: #9AA2B4; }
.md-nota { font-size: 0.8rem; color: #9AA2B4; line-height: 1.55; }
.md-whats {
  display: inline-flex; justify-content: center; align-items: center;
  padding: 14px 20px; border-radius: 3px; background: #FFC40E; color: #1D2230;
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; text-align: center;
}
.md-whats:hover, .md-whats:focus-visible { background: #FFFFFF; color: #1D2230; }
.md-ficha { margin-top: 8px; width: 100%; border: 1.5px solid rgba(255, 255, 255, 0.3); background: transparent; color: #FFFFFF; cursor: pointer; }
.md-ficha-link { display: block; margin-top: 10px; background: none; border: 0; padding: 0; cursor: pointer; font: inherit; }

@media (max-width: 900px) {
  .md-calc-grade, .md-eps-grade { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .md-cena { height: 400vh; }
  .md-stage { perspective-origin: 50% 94%; }
  .md-t1, .md-bruma { top: 36%; }
  .md-etapas { bottom: clamp(96px, 13vh, 124px); }
  .md-t2 { bottom: clamp(88px, 12vh, 118px); padding: 0 16px; }
  .md-t2 h2 { font-size: 1.28rem; margin-bottom: 9px; }
  .md-t2 p { font-size: 0.88rem; line-height: 1.55; }
  .md-tom { padding: 5px 10px 5px 5px; font-size: 0.8rem; gap: 7px; }
  .md-tom i { width: 24px; height: 24px; }
  .md-numeros { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .md-cena { height: 100vh; }
  .md-stage { --md: 1; }
  .md-sala { transform: translateZ(calc(var(--D) * 0.28)); }
  .md-dica { display: none; }
  .md-dica span { animation: none; }
  .md-etapa { display: none; }
}

/* ---------- acústica e térmica (2026-09-28): "dar ênfase para os forros com boa acústica" ---------- */
.md-conforto { background: var(--navy); color: #E7EAF0; padding: clamp(64px, 9vw, 104px) 0; }
.md-conforto .section-eyebrow { color: var(--yellow); opacity: 1; }
.md-conforto-topo { max-width: 680px; margin-bottom: 36px; }
.md-conforto h2 {
  font-family: var(--font-display); font-weight: var(--display-weight); letter-spacing: var(--display-tracking);
  font-size: clamp(2rem, 4.4vw, 3rem); color: #FFFFFF; margin: 6px 0 12px;
}
.md-conforto-topo p { color: #C9CEDA; font-size: 1.05rem; line-height: 1.6; }
.md-nrc { display: grid; gap: 14px; max-width: 900px; }
.md-nrc-linha { display: grid; grid-template-columns: minmax(0, 260px) minmax(0, 1fr) 56px; gap: 16px; align-items: center; }
.md-nrc-nome { font-weight: 600; color: #FFFFFF; font-size: 0.95rem; }
.md-nrc-barra { height: 14px; background: rgba(255, 255, 255, 0.08); border-radius: 3px; overflow: hidden; }
.md-nrc-barra i {
  display: block; height: 100%; width: calc(var(--v) * 100%); background: var(--yellow); border-radius: 3px;
  transform-origin: left center; transform: scaleX(0); transition: transform 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.md-nrc.is-visible .md-nrc-barra i, .md-nrc-barra i.sem-animacao { transform: scaleX(1); }
.md-nrc-linha b { font-family: var(--font-mono); color: var(--yellow); font-size: 1rem; text-align: right; }
.md-nrc-ref .md-nrc-nome { color: #9AA3B5; font-weight: 400; }
.md-nrc-ref .md-nrc-barra i { background: #6B7489; }
.md-nrc-ref b { color: #9AA3B5; }
.md-nrc-nota { color: #9AA3B5; font-size: 0.86rem; margin-top: 4px; }
.md-conforto-cartoes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 44px; }
.md-conforto-cartao {
  background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 12px;
  padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 10px;
}
.md-conforto-tag {
  align-self: flex-start; font-family: var(--font-mono); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--navy); background: var(--yellow); padding: 5px 9px; border-radius: 3px;
}
.md-conforto-cartao h3 { color: #FFFFFF; font-size: 1.15rem; }
.md-conforto-cartao p { color: #C9CEDA; line-height: 1.6; font-size: 0.95rem; }
.md-conforto .md-link { color: var(--yellow); margin-top: auto; }
@media (max-width: 900px) { .md-conforto-cartoes { grid-template-columns: 1fr; } }
@media (max-width: 600px) {
  .md-nrc-linha { grid-template-columns: minmax(0, 1fr) 48px; row-gap: 6px; }
  .md-nrc-nome { grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) { .md-nrc-barra i { transform: none; transition: none; } }