.groups-main { padding-top: var(--space-32); }

.groups-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-32);
  gap: var(--space-32);
  flex-wrap: wrap;
}
.groups-headline {
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: var(--text-2xl);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-8);
  font-variation-settings: "opsz" 36;
}
.groups-headline em { font-style: italic; color: var(--accent); font-weight: 400; }
.groups-sub {
  font-family: var(--serif-body);
  font-size: var(--text-base);
  color: var(--ink-muted);
  margin: 0;
}
.groups-actions {
  display: flex;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.groups-suggestions {
  background: var(--accent-soft);
  border-radius: var(--radius-md);
  padding: var(--space-16) var(--space-24);
  margin-bottom: var(--space-24);
  font-family: var(--serif-body);
  font-size: var(--text-base);
  color: var(--ink);
}
.groups-suggestions h3 {
  font-family: var(--sans);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0 0 var(--space-8);
}
.groups-suggestions ul { margin: 0; padding-left: var(--space-24); }
.groups-suggestions li { margin-bottom: var(--space-4); }

.groups-board {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-24);
}
@media (max-width: 800px) {
  .groups-board { grid-template-columns: 1fr; }
}

.groups-roster, .groups-column {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.groups-column-header {
  font-family: var(--sans);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-12) var(--space-16);
  border-bottom: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.groups-count {
  color: var(--ink-faint);
  font-feature-settings: "tnum";
}

.groups-drop-target {
  flex: 1;
  min-height: 200px;
  padding: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  transition: background var(--motion-micro) ease-out;
}
.groups-drop-target.drag-over {
  background: var(--accent-soft);
}

.groups-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-16);
}
@media (max-width: 640px) { .groups-grid { grid-template-columns: 1fr; } }

.student-chip {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-family: var(--sans);
  font-size: var(--text-sm);
  cursor: grab;
  transition: opacity var(--motion-micro) ease-out, transform var(--motion-micro) ease-out;
}
.student-chip:active { cursor: grabbing; }
.student-chip.dragging { opacity: 0.4; }
.student-chip .avatar { width: 24px; height: 24px; font-size: 11px; }

.groups-toast {
  position: fixed;
  bottom: var(--space-24);
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--bg);
  padding: var(--space-12) var(--space-24);
  border-radius: var(--radius-pill);
  font-family: var(--sans);
  font-size: var(--text-sm);
  z-index: 200;
  animation: toast-in var(--motion-medium) ease-out;
}
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }