/* SEÇÃO 5 — MAPA ANATÔMICO DA DOR ==========================================
   A seção tem cerca de duas dobras de percurso. O palco permanece fixo e o
   vídeo é percorrido pelo scroll; pontos e textos continuam sendo HTML para
   preservar nitidez, acessibilidade, clique e mensuração. */

.regioes {
  position: relative;
  height: 320svh;
  min-height: 125rem;
  background: #fff;
}

.regioes__sticky {
  position: sticky;
  top: 0;
  height: 100svh;
  min-height: 40rem;
  overflow: clip;
  background: #fff;
}

.regioes__container {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  padding-top: clamp(1.25rem, 3.5svh, 2.75rem);
  padding-bottom: clamp(0.75rem, 2svh, 1.5rem);
}

.regioes__head {
  position: relative;
  z-index: 5;
  gap: clamp(0.4rem, 1svh, 0.9rem);
  margin-bottom: clamp(0.5rem, 1.4svh, 1.25rem);
}

.regioes__head .lede {
  max-width: 53ch;
}

.regioes__experiencia {
  position: relative;
  min-height: 0;
  isolation: isolate;
  background: #fff;
}

.regioes__visual {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Névoa de câmera: mantém o foco limpo no ponto de dor e dissolve a borda do
   enquadramento no branco, evitando qualquer corte duro durante o zoom. */
.regioes__visual::after {
  content: '';
  position: absolute;
  z-index: 2;
  inset: -2px;
  pointer-events: none;
  opacity: var(--focus-opacity, 0);
  background:
    linear-gradient(to bottom,
      #fff 0,
      rgba(255, 255, 255, 0.9) 7%,
      rgba(255, 255, 255, 0.18) 19%,
      transparent 31%,
      transparent 72%,
      rgba(255, 255, 255, 0.18) 84%,
      #fff 100%),
    radial-gradient(ellipse 42% 58% at var(--focus-x, 50%) var(--focus-y, 45%),
      transparent 0 34%,
      rgba(255, 255, 255, 0.05) 48%,
      rgba(255, 255, 255, 0.34) 72%,
      rgba(255, 255, 255, 0.88) 100%);
  will-change: opacity;
}

/* O corpo ocupa 1,5x o enquadramento. O JS move este plano verticalmente
   conforme a região ativa, produzindo uma câmera que percorre o corpo. */
.regioes__corpo {
  position: absolute;
  z-index: 1;
  inset: 0;
  transform: translate3d(0, var(--body-pan, 18%), 0) scale(1.5);
  transform-origin: 50% 50%;
  will-change: transform;
}

.regioes__video,
.regioes__poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: 50% 50%;
  user-select: none;
  pointer-events: none;
  mix-blend-mode: multiply;
}

.regioes__video {
  z-index: 2;
  opacity: 0;
  /* O render tem fundo #f7f6fd; este ajuste o leva a branco puro para que
     desapareça sobre a seção sem alterar a paleta muscular. */
  filter: brightness(1.035) contrast(1.015);
  transition: opacity 500ms ease;
}

.regioes__poster {
  z-index: 1;
  transition: opacity 500ms ease;
}

.regioes.is-video-pronto .regioes__video { opacity: 1; }
.regioes.is-video-pronto .regioes__poster { opacity: 0; }

.regioes__camada {
  position: absolute;
  z-index: 3;
  inset: 0;
}

.regioes__etapa {
  position: absolute;
  inset: 0;
  visibility: hidden;
  opacity: 0;
  transition: opacity 260ms ease, visibility 260ms step-end;
  pointer-events: none;
}

.regioes__etapa.is-active {
  visibility: visible;
  opacity: 1;
  transition: opacity 360ms ease, visibility 0ms step-start;
}

.regioes__hotspot {
  position: absolute;
  left: var(--hotspot-x);
  top: var(--hotspot-y);
  width: clamp(5.5rem, 8vw, 8rem);
  height: clamp(5.5rem, 8vw, 8rem);
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  border-radius: 50%;
  pointer-events: auto;
  cursor: pointer;
  isolation: isolate;
}

.regioes__hotspot::before,
.regioes__hotspot::after,
.regioes__hotspot span,
.regioes__hotspot span::before,
.regioes__hotspot span::after {
  content: '';
  position: absolute;
  border-radius: 50%;
}

.regioes__hotspot span {
  width: 1px;
  height: 1px;
  z-index: 3;
  display: block;
  background: transparent;
}

/* Mancha térmica: vermelho profundo nas bordas, laranja e branco no núcleo.
   Ela colore a anatomia por cima do vídeo, sem ficar gravada no asset. */
.regioes__hotspot span::before {
  z-index: -2;
  left: 50%;
  top: 50%;
  width: var(--pain-w, 6rem);
  height: var(--pain-h, 6rem);
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center,
    rgba(255, 116, 40, 0.82) 0,
    rgba(244, 39, 27, 0.7) 17%,
    rgba(204, 0, 0, 0.42) 38%,
    rgba(170, 0, 0, 0.12) 58%,
    transparent 76%);
  filter: blur(6px) saturate(1.35);
  mix-blend-mode: multiply;
  animation: regiao-calor 1.55s ease-in-out infinite;
}

.regioes__hotspot span::after {
  z-index: -1;
  left: 50%;
  top: 50%;
  width: calc(var(--pain-w, 6rem) + 1.6rem);
  height: calc(var(--pain-h, 6rem) + 1.6rem);
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse,
    rgba(255, 212, 105, 0.32) 0,
    rgba(255, 76, 38, 0.2) 24%,
    transparent 67%);
  filter: blur(11px);
  animation: regiao-brilho 1.55s 0.18s ease-in-out infinite;
}

.regioes__hotspot::before {
  left: 50%;
  top: 50%;
  width: calc(var(--pain-w, 6rem) + 0.8rem);
  height: calc(var(--pain-h, 6rem) + 0.8rem);
  background: radial-gradient(ellipse, rgba(218, 20, 12, 0.15), transparent 68%);
  filter: blur(7px);
  animation: regiao-sonar 2s ease-out infinite;
}

.regioes__hotspot::after {
  left: 50%;
  top: 50%;
  width: calc(var(--pain-w, 6rem) + 2.5rem);
  height: calc(var(--pain-h, 6rem) + 2.5rem);
  background: radial-gradient(ellipse, rgba(238, 46, 27, 0.12), transparent 69%);
  filter: blur(10px);
  animation: regiao-sonar 2s 0.5s ease-out infinite;
}

.regioes__etapa--difusa .regioes__hotspot::after {
  background: radial-gradient(ellipse, rgba(224, 54, 36, 0.07), transparent 66%);
}

@keyframes regiao-sonar {
  0% { transform: translate(-50%, -50%) scale(0.58); opacity: 0; }
  22% { opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(1.18); opacity: 0; }
}

@keyframes regiao-calor {
  0%, 100% { opacity: 0.58; filter: blur(7px) saturate(1.18) brightness(0.92); }
  48% { opacity: 0.95; filter: blur(5px) saturate(1.48) brightness(1.08); }
}

@keyframes regiao-brilho {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 0.94; }
}

.regioes__texto {
  position: absolute;
  left: var(--copy-x);
  top: var(--copy-y);
  width: clamp(14rem, 18vw, 17rem);
  display: grid;
  gap: 0.28rem;
  padding: 0.85rem 0 0.8rem 3.2rem;
  color: var(--text);
  pointer-events: auto;
  text-align: left;
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.95));
}

.regioes__texto::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1.5rem;
  width: 2.35rem;
  height: 1px;
  background: linear-gradient(90deg, var(--pain-500), rgba(192, 57, 43, 0.1));
}

.regioes__etapa--esquerda .regioes__texto {
  padding: 0.85rem 3.2rem 0.8rem 0;
  text-align: right;
}

.regioes__etapa--esquerda .regioes__texto::before {
  left: auto;
  right: 0;
  background: linear-gradient(270deg, var(--pain-500), rgba(192, 57, 43, 0.1));
}

.regioes__numero {
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--pain-500);
}

.regioes__texto strong {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.1vw, 2.25rem);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
}

.regioes__texto > span:not(.regioes__numero) {
  max-width: 30ch;
  color: var(--text-soft);
  font-size: var(--text-sm);
  line-height: 1.42;
}

.regioes__texto em {
  margin-top: 0.25rem;
  font-size: var(--text-xs);
  font-style: normal;
  font-weight: 700;
  color: var(--green-700);
}

.regioes__texto:hover em,
.regioes__texto:focus-visible em { color: var(--green-900); }

.regioes__navegacao {
  position: absolute;
  z-index: 5;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 0.7rem;
  align-items: stretch;
}

.regioes__progresso {
  position: relative;
  width: 1px;
  background: var(--line);
  overflow: hidden;
}

.regioes__progresso i {
  position: absolute;
  inset: 0;
  display: block;
  transform: scaleY(0);
  transform-origin: top;
  background: var(--pain-500);
  will-change: transform;
}

.regioes__navegacao ol {
  display: grid;
  align-content: space-between;
  gap: clamp(0.22rem, 0.7vh, 0.5rem);
}

.regioes__navegacao button {
  position: relative;
  width: 2rem;
  height: 1.6rem;
  padding: 0;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.55;
  transition: color 180ms ease, opacity 180ms ease, transform 180ms ease;
}

.regioes__navegacao button::before {
  content: '';
  position: absolute;
  width: 0.28rem;
  height: 0.28rem;
  margin-left: -2.7rem;
  border-radius: 50%;
  background: var(--line-strong);
}

.regioes__navegacao button.is-active {
  color: var(--pain-500);
  opacity: 1;
  transform: translateX(-0.18rem);
}

.regioes__navegacao button.is-active::before { background: var(--pain-500); }

.regioes__instrucao {
  position: absolute;
  z-index: 5;
  left: 0;
  bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.regioes__instrucao span {
  color: var(--pain-500);
  animation: regiao-seta 1.6s ease-in-out infinite;
}

@keyframes regiao-seta {
  0%, 100% { transform: translateY(-0.15rem); }
  50% { transform: translateY(0.22rem); }
}

.regioes__sem-js {
  position: absolute;
  inset: auto 0 1rem;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1rem;
}

.regioes__sem-js p { flex-basis: 100%; text-align: center; }
.regioes__sem-js a { color: var(--green-700); text-decoration: underline; }

@media (max-width: 63.99rem) {
  .regioes { height: 320svh; }
  .regioes__texto { width: min(16rem, 31vw); }
  .regioes__texto strong { font-size: clamp(1.35rem, 3vw, 1.9rem); }
}

@media (max-width: 47.99rem) {
  .regioes {
    height: 340svh;
    min-height: 115rem;
  }

  .regioes__sticky { min-height: 35rem; }

  .regioes__container {
    padding-top: max(0.75rem, env(safe-area-inset-top));
    padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
  }

  .regioes__head { gap: 0.32rem; margin-bottom: 0.2rem; }
  .regioes__head .eyebrow { font-size: 0.63rem; }
  .regioes__head .h2 { font-size: clamp(1.8rem, 9vw, 2.45rem); }
  .regioes__head .lede { font-size: 0.95rem; line-height: 1.35; max-width: 32ch; }

  /* Reserva a base para o texto e para o CTA fixo do celular. */
  .regioes__visual { inset: 0 0 10rem; }

  .regioes__video,
  .regioes__poster {
    object-position: 50% 50%;
  }

  .regioes__texto,
  .regioes__etapa--esquerda .regioes__texto {
    left: 50%;
    top: auto;
    bottom: 0.25rem;
    width: min(90vw, 24rem);
    transform: translateX(-50%);
    padding: 0.65rem 2.6rem 0.65rem 0;
    text-align: left;
    gap: 0.15rem;
  }

  .regioes__texto::before,
  .regioes__etapa--esquerda .regioes__texto::before {
    left: auto;
    right: 0;
    top: 1.4rem;
    width: 1.9rem;
    background: linear-gradient(270deg, var(--pain-500), rgba(192, 57, 43, 0.1));
  }

  .regioes__texto strong { font-size: 1.45rem; }
  .regioes__texto > span:not(.regioes__numero) { font-size: 0.78rem; }
  .regioes__texto em { display: none; }

  .regioes__hotspot {
    left: var(--mobile-hotspot-x, var(--hotspot-x));
    top: var(--mobile-hotspot-y, var(--hotspot-y));
    width: 5.5rem;
    height: 5.5rem;
  }

  .regioes__hotspot span::before {
    width: var(--mobile-pain-w, var(--pain-w, 6rem));
    height: var(--mobile-pain-h, var(--pain-h, 6rem));
  }

  .regioes__hotspot span::after {
    width: calc(var(--mobile-pain-w, var(--pain-w, 6rem)) + 1.25rem);
    height: calc(var(--mobile-pain-h, var(--pain-h, 6rem)) + 1.25rem);
  }

  .regioes__hotspot::before {
    width: calc(var(--mobile-pain-w, var(--pain-w, 6rem)) + 0.65rem);
    height: calc(var(--mobile-pain-h, var(--pain-h, 6rem)) + 0.65rem);
  }

  .regioes__hotspot::after {
    width: calc(var(--mobile-pain-w, var(--pain-w, 6rem)) + 1.85rem);
    height: calc(var(--mobile-pain-h, var(--pain-h, 6rem)) + 1.85rem);
  }

  .regioes__navegacao {
    right: -0.5rem;
    gap: 0.35rem;
  }

  .regioes__navegacao button {
    width: 1.55rem;
    font-size: 0;
  }

  .regioes__navegacao button::before {
    width: 0.34rem;
    height: 0.34rem;
    margin-left: -1.95rem;
  }

  .regioes__instrucao {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .regioes { height: 210svh; }
  .regioes__video { display: none; }
  .regioes__poster { opacity: 1 !important; }
  .regioes__etapa,
  .regioes__hotspot::before,
  .regioes__hotspot::after,
  .regioes__hotspot span::before,
  .regioes__hotspot span::after,
  .regioes__instrucao span { animation: none; transition: none; }
}