.training-disclosure {
  overflow: hidden;
  border: 1px solid #d9e3f5;
  border-radius: 17px;
  background: #fff;
  box-shadow: 0 8px 22px rgba(26, 52, 105, 0.05);
}

.training-disclosure > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
  color: #1a315f;
  background: linear-gradient(135deg, #fff, #f6f9ff);
}

.training-disclosure > summary::-webkit-details-marker { display: none; }
.training-disclosure > summary span { display: grid; gap: 4px; }
.training-disclosure > summary strong { font-size: 1.02rem; }
.training-disclosure > summary small { color: #6d7fa3; font-size: 0.8rem; font-weight: 500; }

.training-disclosure > summary i {
  width: 12px;
  height: 12px;
  margin-right: 5px;
  border-right: 2px solid #315bd0;
  border-bottom: 2px solid #315bd0;
  transform: rotate(45deg);
  transition: transform 0.18s;
}

.training-disclosure[open] > summary {
  border-bottom: 1px solid #e1e8f6;
  background: #f4f8ff;
}

.training-disclosure[open] > summary i { transform: rotate(225deg); }

.training-disclosure > .training-create-card,
.training-disclosure > .training-history-card {
  margin: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.training-disclosure:not([open]) > .training-create-card,
.training-disclosure:not([open]) > .training-history-card { display: none; }

@media (max-width: 640px) {
  .training-disclosure > summary { padding: 15px 17px; }
  .training-disclosure > summary small { font-size: 0.72rem; }
}