/* ==========================================================
   QUEBRA-CABEÇA: monte o coração com as fotos
   ========================================================== */

.puzzle__progresso {
  margin: 1.2rem 0 .4rem;
  font-size: 1rem;
}

.puzzle {
  position: relative;
  width: 100%;
  /* o tabuleiro inteiro cabe na tela: dá pra arrastar da pilha até o topo do coração */
  max-width: min(520px, calc((100svh - 2.5rem) / 2.1));
  aspect-ratio: 4 / 8.4;
  margin: 0 auto;
}

@media (min-width: 560px) {
  .puzzle {
    max-width: min(520px, calc((100svh - 2.5rem) / 1.9));
    aspect-ratio: 4 / 7.6;
  }
}

/* o coração tracejado de guia */
.puzzle__contorno {
  position: absolute;
  left: -2%;
  top: -1%;
  width: 104%;
  height: 72%;
  fill: none;
  stroke: var(--rosa-forte);
  stroke-width: 1.6;
  stroke-dasharray: 2 7;
  stroke-linecap: round;
  opacity: .45;
  pointer-events: none;
}

.molde {
  position: absolute;
  z-index: 1;
  width: 18.5%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 2px dashed var(--rosa);
  border-radius: 8px;
  background: rgba(255, 255, 255, .55);
  color: var(--rosa);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.molde svg { width: 34%; fill: currentColor; opacity: .7; }

.molde.alvo {
  border-color: var(--batom);
  background: rgba(255, 255, 255, .9);
  transform: scale(1.07);
}

.molde.preenchido { border-color: transparent; background: none; }
.molde.preenchido svg { opacity: 0; }
.molde.errou { animation: tremer-leve .4s ease; }

/* cada foto é uma polaroidzinha com fita */
.peca {
  position: absolute;
  z-index: 5;
  width: 18.5%;
  /* % de padding é relativo ao tabuleiro: 1.11% = 6% da largura da peça */
  padding: 1.11% 1.11% 3.33%;
  background: #fffefb;
  border-radius: 2px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .08), 0 10px 16px -8px rgba(58, 39, 49, .45);
  transform: rotate(var(--rot, 0deg));
  touch-action: none;
  cursor: grab;
  transition: transform .25s ease, box-shadow .25s ease, padding .35s ease, left .35s ease, top .35s ease;
}

.peca::before {
  content: '';
  position: absolute;
  z-index: 2;
  top: -6px;
  left: 50%;
  width: 46%;
  height: 12px;
  margin-left: -23%;
  background: rgba(242, 155, 184, .7);
  transform: rotate(-4deg);
}

.peca .foto { pointer-events: none; }
.peca .foto__rotulo { font-size: clamp(.5rem, 2.2vw, .7rem); }

.peca.arrastando {
  z-index: 50;
  cursor: grabbing;
  transform: rotate(0deg) scale(1.08);
  box-shadow: 0 22px 30px -12px rgba(201, 42, 90, .5);
  transition: transform .2s ease, box-shadow .2s ease;
}

.peca.selecionada {
  z-index: 40;
  transform: rotate(0deg) scale(1.1);
  box-shadow: 0 0 0 3px var(--batom), 0 18px 26px -12px rgba(201, 42, 90, .5);
}

.peca.errou { animation: tremer-leve .4s ease; }

/* encaixada: vira um quadradinho do mosaico */
.peca.travada {
  z-index: 2;
  padding: .74%;
  transform: rotate(0deg);
  cursor: default;
  box-shadow: 0 2px 6px -2px rgba(58, 39, 49, .35);
}

.peca.travada::before { opacity: 0; }

.completo .peca.travada { animation: pulsar .9s ease; }

/* aparece onde as fotos estavam empilhadas */
.puzzle__fim {
  position: absolute;
  inset: 80% 0 auto;
  text-align: center;
  font-size: clamp(1.15rem, 5vw, 1.5rem);
  color: var(--batom);
  animation: fim-surgir .9s ease .5s both;
}

@keyframes fim-surgir {
  from { opacity: 0; transform: translateY(10px); }
}

@keyframes tremer-leve {
  0%, 100% { translate: 0; }
  25% { translate: -5px 0; }
  75% { translate: 5px 0; }
}

@keyframes pulsar {
  50% { transform: scale(1.06); }
}