.teacher-assign-checkpoint {
  position: fixed !important;
  left: 22px !important;
  bottom: 22px !important;
  right: auto !important;
  top: auto !important;
  z-index: 2147483000 !important;
  width: 255px !important;
  max-width: calc(100vw - 44px) !important;
  overflow: visible !important;
  font-family: Poppins, Inter, system-ui, sans-serif !important;
  color: #111827 !important;
  transform: none !important;
}

.teacher-assign-checkpoint-inner {
  background: #f8fafc;
  border-left: 8px solid #fbbf24;
  border-radius: 22px;
  padding: 15px 15px 14px;
  box-shadow: 0 18px 50px rgba(0,0,0,.28);
}

.teacher-assign-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.teacher-assign-kicker {
  margin: 0 0 5px;
  color: #64748b;
  font-size: .78rem;
  font-weight: 1000;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.teacher-assign-checkpoint h3 {
  margin: 0 0 6px;
  color: #111827;
  font-size: 1.18rem;
  font-weight: 1000;
  line-height: 1.12;
}

.teacher-assign-text {
  margin: 0 0 13px;
  color: #475569;
  font-size: .9rem;
  font-weight: 850;
  line-height: 1.28;
}

.teacher-assign-main-btn {
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 13px 15px;
  color: #fff;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  font-size: .96rem;
  font-weight: 1000;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(59,130,246,.25);
}

.teacher-assign-icon-btn {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 999px;
  background: #e2e8f0;
  color: #64748b;
  font-size: 1.1rem;
  font-weight: 1000;
  cursor: pointer;
}

.teacher-assign-collapsed-tab {
  display: none;
  width: 112px;
  height: 112px;
  border-radius: 999px;
  border: 2px solid rgba(255,255,255,.22);
  background: rgba(15,23,42,.94);
  color: #fff;
  font-size: 1.08rem;
  font-weight: 1000;
  cursor: pointer;
  box-shadow: 0 18px 50px rgba(0,0,0,.32);
}

.teacher-assign-checkpoint.teacher-mini-collapsed {
  width: 120px !important;
}

.teacher-assign-checkpoint.teacher-mini-collapsed .teacher-assign-checkpoint-inner {
  display: none !important;
}

.teacher-assign-checkpoint.teacher-mini-collapsed .teacher-assign-collapsed-tab {
  display: grid !important;
  place-items: center;
  text-align: center;
  line-height: 1.1;
}

.teacher-assign-checkpoint.teacher-mini-student-hidden {
  display: none !important;
}