.portfolio-layout {
  max-width: 56rem;
  margin: 0 auto;
}

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem 2rem;
  margin-bottom: 1.25rem;
}

.portfolio-filters-hint {
  margin: 0 0 0 auto;
  color: #666;
  font-size: 0.88rem;
  font-weight: 500;
}

.portfolio-filter {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy);
}

.portfolio-filter-select {
  min-width: 10rem;
  padding: 0.35rem 1.75rem 0.35rem 0.55rem;
  border: 1px solid #c5c5c5;
  border-radius: 2px;
  background: var(--white);
  color: var(--navy);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.4rem center;
  background-size: 0.9rem;
}

.portfolio-courses {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.portfolio-course-toggle,
.portfolio-unit-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  padding: 0.85rem 1rem;
  border: none;
  background: var(--section-color, #8e6fb1);
  color: var(--section-on-color, #ffffff);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.portfolio-course-toggle:hover,
.portfolio-unit-toggle:hover {
  filter: brightness(1.05);
}

.portfolio-course-toggle-label,
.portfolio-unit-toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.portfolio-folder-icon {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  background-color: currentColor;
  -webkit-mask-image: url('/app/courses/portfolio.png');
  mask-image: url('/app/courses/portfolio.png');
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}

.portfolio-course-chevron,
.portfolio-unit-chevron {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.portfolio-course.is-open .portfolio-course-chevron,
.portfolio-unit.is-open .portfolio-unit-chevron {
  transform: rotate(180deg);
}

.portfolio-course-panel {
  background: var(--white);
}

.portfolio-unit-panel {
  background: #f7f7f7;
}

.portfolio-units {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.85rem 0.9rem 1rem;
}

.portfolio-unit-toggle {
  background: var(--section-color-light, #a88fc8);
  color: var(--section-on-color, #ffffff);
}

.portfolio-items {
  display: flex;
  flex-direction: column;
}

.portfolio-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: none;
  border-bottom: 1px solid #d8dee6;
  background: var(--white);
  color: var(--navy);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.portfolio-item:last-child {
  border-bottom: none;
}

.portfolio-item:hover {
  background: #f4f7fb;
}

.portfolio-item--saved .portfolio-item-status {
  color: #2f8a4e;
}

.portfolio-item-title {
  flex: 1 1 auto;
  min-width: 0;
}

.portfolio-item-status {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  color: #8a8a8a;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.portfolio-empty,
.portfolio-course-empty,
.portfolio-unit-empty {
  margin: 0;
  padding: 0.85rem 1rem;
  color: #666;
  font-size: 0.88rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .portfolio-filters {
    gap: 0.85rem 1.25rem;
  }

  .portfolio-filters-hint {
    margin-left: 0;
    width: 100%;
  }

  .portfolio-filter-select {
    min-width: 8.5rem;
  }
}