/* =========================================
   ACCORDION - DIAGNOSTICA STRUMENTALE
========================================= */

.accordion-container {
  max-width: 1100px;
  margin: 35px auto 50px;
  padding: 0 14px;
}

.accordion {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;

  background: #ffffff;
  color: #6b4f7c;
  border: 1px solid rgba(123, 79, 145, 0.14);
  border-radius: 16px;
  padding: 18px 22px;
  margin: 0 0 16px 0;

  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  text-align: left;

  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  transition: all .25s ease;
  position: relative;
}

.accordion:hover {
  background: #fcf8fd;
  border-color: rgba(123, 79, 145, 0.28);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.accordion.active {
  background: linear-gradient(135deg, #7b4f91 0%, #976d92 100%);
  color: #fff;
  border-color: transparent;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  margin-bottom: 0;
  box-shadow: 0 14px 30px rgba(123, 79, 145, 0.22);
}

.accordion .icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;

  background: rgba(123, 79, 145, 0.10);
  color: #7b4f91;
  font-size: 18px;
  font-weight: 700;
  transition: all .25s ease;
}

.accordion.active .icon {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.panel {
  display: none;
  background: #fff;
  color: #5d4b69;

  border-left: 1px solid rgba(123, 79, 145, 0.14);
  border-right: 1px solid rgba(123, 79, 145, 0.14);
  border-bottom: 1px solid rgba(123, 79, 145, 0.14);

  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;

  padding: 22px 24px;
  margin: 0 0 18px 0;

  line-height: 1.8;
  font-size: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.05);
}

.panel p:last-child {
  margin-bottom: 0;
}

/* spazio maggiore tra gruppi chiusi */
.accordion-container > .accordion:not(.active) + .panel {
  margin-bottom: 0;
}

/* focus accessibile */
.accordion:focus {
  outline: none;
  box-shadow:
    0 0 0 4px rgba(151, 109, 146, 0.16),
    0 8px 24px rgba(0, 0, 0, 0.05);
}

/* tablet */
@media (max-width: 991.98px) {
  .accordion {
    font-size: 18px;
    padding: 16px 18px;
  }

  .panel {
    padding: 18px 20px;
    font-size: 15px;
  }
}

/* mobile */
@media (max-width: 767.98px) {
  .accordion-container {
    margin: 24px auto 36px;
    padding: 0 10px;
  }

  .accordion {
    font-size: 16px;
    line-height: 1.45;
    padding: 14px 16px;
    border-radius: 14px;
    margin-bottom: 12px;
  }

  .accordion.active {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
  }

  .accordion .icon {
    width: 30px;
    height: 30px;
    font-size: 16px;
  }

  .panel {
    padding: 16px;
    font-size: 14px;
    line-height: 1.75;
    border-bottom-left-radius: 14px;
    border-bottom-right-radius: 14px;
    margin-bottom: 14px;
  }
}