.collapsible-card {
  position: relative;
}

.card-collapse-toggle {
  position: absolute;
  top: 18px;
  inset-inline-end: 18px;
  z-index: 3;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 253, 248, .94);
  color: var(--olive-dark);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform .16s ease, background .16s ease, box-shadow .16s ease;
}

.card-collapse-toggle:hover {
  background: var(--olive-soft);
  box-shadow: var(--shadow-md);
}

.card-collapse-toggle:active {
  transform: scale(.96);
}

.card-collapse-toggle:focus-visible {
  outline: 3px solid rgba(198, 113, 57, .22);
  outline-offset: 2px;
}

.card-collapse-toggle svg {
  transition: transform .2s ease;
}

.card-collapse-toggle[aria-expanded="false"] svg {
  transform: rotate(180deg);
}

.js-collapsible-content[hidden] {
  display: none !important;
}

.student-card > .student-head {
  padding-inline-end: 54px;
}

.lesson-card > .back-link {
  max-width: calc(100% - 58px);
}

@media (max-width: 820px) {
  .card-collapse-toggle {
    top: 16px;
    inset-inline-end: 16px;
    width: 40px;
    height: 40px;
    border-radius: 13px;
  }

  .student-card > .student-head {
    padding-inline-end: 50px;
  }
}