body, html {
  z-index: 0;
  margin: 0;
  padding: 0;
  background: transparent;
  font-family: 'Montserrat', sans-serif;
  font-size: small;
}
#background-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}
.bg-layer {
  position: fixed;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: opacity 1s ease-in-out;
  opacity: 0;
}
#bgimg1 {
  z-index: -1;
}
#bgimg2 {
  z-index: -2;
}

h1{
  margin: 0;
  text-align: center;
  background-color: #3c3c3cc2;
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
}
h1>img{
  max-height: 120px;
}
.masterContainer {
    display: grid;
    max-width: 1080px;
    margin: auto;
    padding: 40px 20px;
    gap: 20px;
    grid-template-columns: 7fr 5fr;
}
.container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 100px));
  grid-template-rows: 30px;
  grid-auto-rows: 100px;
  gap: 15px;
  padding: 20px;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
}
.container>h2 {
  padding: 3px;
  grid-column: 1 / -1;
  align-self: center;
  text-align: center;
  color: #ffffffe8;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.30);
  border-radius: 10px;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.container>div {
  display: flex;
  position: relative;
  align-items: center;
  justify-content: center;
  background-color: white;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.30);
  padding: 10px;
  font-size: 15px;
  border-radius: 10px;
  transition: 180ms ease-in-out;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  cursor: pointer;
  user-select: none;
}
.container>div::after {
  content: attr(data-label);
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  padding: 5px 10px;
  background-color: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 12px;
  border-radius: 5px;
  opacity: 0;
  transition: opacity 200ms ease-in-out;
  pointer-events: none;
  text-align: center;
}
.container>div:hover {
  box-shadow: 0 0 10px rgba(0,0,0,0.4);
  transform: scale(1.05);
  font-weight: bold;
}
.container>div:hover::after {
  opacity: 1;
}
.m2 {
  grid-column: span 2;
}
@media screen and (max-width: 700px) {
    .masterContainer {
        display: grid;
        margin: auto;
        padding: 40px 3px;
        grid-template-columns: 1fr;
    }
    .container {
      gap: 10px;
      padding: 10px;
    }
    .container>div::after {
      /* FORZA l'opacità a 1 su mobile, rendendo l'etichetta SEMPRE VISIBILE */
      opacity: 1;
    }
    .container>div:hover {
      box-shadow: none;
      transform: none;
    }
}
@media (min-width: 910px) {
  .s1 {
    grid-column: span 1;
  }
  .s2 {
    grid-column: span 2;
  }
  .s3 {
    grid-column: span 3;
  }
}