/**
 * Seminars · My tab
 * Seminars I run or where my own students are registered. Each seminar is a
 * collapsible card (native <details>) listing my students inline, with a link
 * into the seminar's full participant list.
 */

.my-seminars {
  max-width: 1040px;
}

/* Toolbar: scope segment + search + filter panel ------------------------- */

.my-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.seg {
  display: inline-flex;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--color-border-base);
  border-radius: var(--radius-lg);
  background: var(--color-bg-muted);
}

.seg__btn {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 5px 13px;
  border-radius: 6px;
  color: var(--color-muted-foreground);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  cursor: pointer;
}

.seg__btn:hover {
  color: var(--color-foreground);
}

.seg__btn--active,
.seg__btn--active:hover {
  color: var(--color-foreground);
  background: var(--color-card);
  box-shadow: var(--shadow-xs);
}

.my-filters {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.my-filters__search {
  position: relative;
  display: block;
  width: 250px;
}

.my-filters__search > i {
  position: absolute;
  top: 50%;
  left: 11px;
  transform: translateY(-50%);
  color: var(--color-muted-foreground);
  font-size: 12px;
}

.my-filters__search .input {
  width: 100%;
  padding-left: 32px;
}

.my-filters__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 38px;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-border-base);
  border-radius: var(--radius-md);
  color: var(--color-foreground);
  background: var(--color-card);
  font-size: var(--font-size-sm);
  list-style: none;
  cursor: pointer;
}

.my-filters__toggle::-webkit-details-marker {
  display: none;
}

.my-filters__panel[open] .my-filters__toggle {
  background: var(--color-bg-muted);
}

/* Opens downward, from the button that toggles it. */
.my-filters__fields {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(3, minmax(170px, 1fr)) auto;
  align-items: end;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--color-border-base);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-md);
}

.my-filters__fields label {
  color: var(--color-muted-foreground);
  font-size: var(--font-size-xs);
}

.my-filters__fields label span {
  display: block;
  margin-bottom: 5px;
}

.my-filters__fields .input {
  width: 100%;
}

/* Seminar card ----------------------------------------------------------- */

.my-seminar {
  margin-bottom: var(--space-3);
  overflow: hidden;
  border: 1px solid var(--color-border-base);
  border-radius: var(--radius-lg);
  background: var(--color-card);
}

.my-seminar__head {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto 24px;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  list-style: none;
  cursor: pointer;
}

.my-seminar__head::-webkit-details-marker {
  display: none;
}

.my-seminar__head:hover {
  background: var(--color-bg-subtle);
}

.my-seminar[open] .my-seminar__head {
  border-bottom: 1px solid var(--color-border-base);
}

.my-seminar__identity {
  min-width: 0;
}

.my-seminar__title {
  display: flex;
  align-items: baseline;
  gap: 7px;
  overflow: hidden;
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
}

.my-seminar__id {
  flex: 0 0 auto;
  color: var(--color-muted-foreground);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.my-seminar__link {
  min-width: 0;
  overflow: hidden;
  color: var(--color-foreground);
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.my-seminar__link:hover {
  text-decoration: underline;
}

.my-seminar__meta {
  margin-top: 3px;
  overflow: hidden;
  color: var(--color-muted-foreground);
  font-size: var(--font-size-xs);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.my-seminar__summary {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-muted-foreground);
  font-size: var(--font-size-xs);
  white-space: nowrap;
}

.my-seminar__all {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-link);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
}

.my-seminar__all i {
  font-size: 9px;
}

.my-seminar__all:hover {
  text-decoration: underline;
}

.my-seminar__chevron {
  justify-self: center;
  color: var(--color-muted-foreground);
  font-size: 12px;
  transition: transform var(--transition-fast);
}

.my-seminar[open] .my-seminar__chevron {
  transform: rotate(180deg);
}

.my-seminar__empty {
  padding: var(--space-5);
  color: var(--color-muted-foreground);
  font-size: var(--font-size-sm);
  text-align: center;
}

.my-seminars__empty {
  padding: var(--space-12);
  color: var(--color-muted-foreground);
  text-align: center;
}

/* Student row ------------------------------------------------------------ */

.my-student-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.my-student {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 64px;
  padding: 7px var(--space-4);
  border-bottom: 1px solid var(--color-border-base);
}

.my-student:last-child {
  border-bottom: 0;
}

.my-student:hover {
  background: var(--color-bg-subtle);
}

.my-student__main {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.my-student .participant-card__avatar {
  width: 44px;
  height: 44px;
}

.my-student__copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.my-student__name a {
  font-size: var(--font-size-sm);
}

.my-student__group {
  overflow: hidden;
  color: var(--color-muted-foreground);
  font-size: var(--font-size-xs);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.my-student__side {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  white-space: nowrap;
}

.my-seminar__more {
  display: block;
  padding: var(--space-3);
  border-top: 1px solid var(--color-border-base);
  background: var(--color-bg-subtle);
  color: var(--color-link);
  font-size: var(--font-size-xs);
  text-align: center;
  text-decoration: none;
}

.my-seminar__more:hover {
  text-decoration: underline;
}

/* Mobile ----------------------------------------------------------------- */

@media (max-width: 767px) {
  .my-toolbar {
    flex-wrap: wrap;
    align-items: stretch;
    gap: var(--space-2);
  }

  .seg {
    flex: 1 0 100%;
  }

  .seg__btn {
    flex: 1;
    justify-content: center;
    padding: 5px 8px;
  }

  .my-filters {
    flex: 1 0 100%;
  }

  .my-filters__search {
    flex: 1;
    width: auto;
  }

  .my-filters__fields {
    right: 0;
    left: 0;
    grid-template-columns: 1fr 1fr;
  }

  .my-filters__clear {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .my-seminar {
    margin-bottom: var(--space-2);
  }

  .my-seminar__head {
    grid-template-columns: minmax(0, 1fr) 16px;
    gap: 7px;
    padding: var(--space-3);
  }

  .my-seminar__title {
    font-size: var(--font-size-sm);
  }

  .my-seminar__summary {
    grid-column: 1 / -1;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-3);
  }

  .my-student {
    flex-wrap: wrap;
    padding: 7px var(--space-3);
  }

  .my-student__main {
    flex: 1 1 100%;
  }

  .my-student__side {
    flex: 1 1 100%;
    justify-content: space-between;
    padding-left: calc(44px + var(--space-3));
  }
}