body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: #e3e3e6;
}

header {
  padding: 20px;
  text-align: center;
  background: white;
  color: #000;
}

h1 {
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  font-size: 2.5rem;
  letter-spacing: 0.5px;
}

.subtitle {
  font-family: 'Roboto Condensed', sans-serif;
  font-weight: 300;
  margin-top: -10px;
  font-size: 1.2rem;
  color: #555;
}

/* ================= Masonry Grid ================= */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3 colunas fixas no desktop */
  grid-auto-rows: 10px; /* base mínima para calcular span */
  gap: 20px;            /* mesmo espaçamento horizontal e vertical */
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px;
}

.item img,
.item video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.item img:hover,
.item video:hover {
  transform: scale(1.03);
}

/* ================= Modal ================= */
.modal {
  display: none; 
  position: fixed;
  z-index: 1000;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background: rgba(0,0,0,0.7);
}

.modal-content {
  margin: auto;
  max-width: 80%;
  text-align: center;
}

.modal-content img,
.modal-content video {
  max-width: 100%;      /* nunca ultrapassa a largura do container */
  max-height: 80vh;     /* altura máxima da tela */
  width: auto;          /* largura automática para manter proporção */
  height: auto;         /* altura automática */
  display: block;
  margin: 0 auto;       /* centraliza */
}

.modal-content video {
  object-fit: contain;  /* mantém proporção do vídeo */
}


.close {
  position: absolute;
  top: 25px;
  right: 40px;
  color: white;
  font-size: 50px;
  cursor: pointer;
}


.prev, .next {
  position: absolute;
  top: 50%;
  font-size: 50px;
  color: white;
  cursor: pointer;
  user-select: none;
  transform: translateY(-50%);
  padding: 10px;
}

.prev { left: 10px; }
.next { right: 10px; }

.prev:hover, .next:hover {
  color: #ccc;
}


/* ================= Responsivo ================= */
@media (max-width: 1200px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr); /* 2 colunas em telas médias */
  }
}

@media (max-width: 600px) {
  .gallery {
    grid-template-columns: 1fr; /* 1 coluna no mobile */
  }
}