.lms-container {
  padding: 1.5rem;
  height: 100%;
  overflow-y: auto;
  background: var(--bg-main);
}
.grid-2 {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  height: 100%;
}
.class-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  margin-bottom: 0.6rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}
.class-item:hover { border-color: var(--primary); background: var(--table-hover); }
.class-item.active { border-color: var(--primary); background: var(--table-hover); box-shadow: 0 0 0 1px var(--primary); }

.student-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}
.student-row:hover { border-color: var(--border-sub); }

.assignment-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}
.submission-row {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  margin-top: 0.5rem;
}