:root {
  --radius-center: 75px;
  --radius-inner: calc(var(--radius-center) * 1);
  --radius-outer: calc(var(--radius-center) * 2.3);
}
* {
  margin: 0;
  padding: 0;
}

#interactive-circles {
  position: relative;
  width: 100%;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.circle-inner, .circle-outer {
  position: absolute;
  width: 0;
  height: 0;
}

.item {
  position: absolute;
  width: 40px;
  height: 40px;
  background: white;
  border-radius: 50%;
  text-align: center;
  line-height: 40px;
  font-size: 50px;
  cursor: pointer;
  transition: transform 0.3s;
}

/* Tooltip per tutti gli item con data-name */
.item:hover::after {
  content: attr(data-name);
  position: absolute;
  top: -25px;
  left: 50%;
  transform: translateX(-50%);
  background: #000000bb;
  color: white;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
}

.circle-inner .item {
  --angle: calc(360deg / 3 * var(--i));
  transform: rotate(var(--angle)) translate(var(--radius-inner)) rotate(calc(-1 * var(--angle))) translate(-50%, -50%);
}

.circle-outer .item {
  --angle: calc(360deg / 8 * var(--i));
  transform: rotate(var(--angle)) translate(var(--radius-outer)) rotate(calc(-1 * var(--angle))) translate(-50%, -50%);
}

.submenu {
  display: none;
  position: absolute;
  top: 50px;
  left: 0;
  background: #ffffff;
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 8px;
  z-index: 5;
}
.item.active .submenu {
  display: block;
}

.subitem {
  font-size: 12px;
  cursor: pointer;
  padding: 4px;
  border-bottom: 1px solid #eee;
}
.subitem:last-child {
  border-bottom: none;
}

.content-display {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: transparent;
  border: 2px dashed #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 1;
}

/* MODAL */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
}
.modal-content {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  border-radius: 10px;
  text-align: center;
}
.modal-content h2 {
  margin-bottom: 0.5rem;
}
.modal-content a {
  display: inline-block;
  margin-top: 1rem;
  background: #000;
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
}
.modal-content .close {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 24px;
  cursor: pointer;
}
/*-------------------------*/