/* ═══════════════════════════════════════════════════════════════════
   TEACHERS / STAFF — css/modules/teachers.css
   ═══════════════════════════════════════════════════════════════════
   Teacher cards, performance tracking, the visual teacher-assignment
   matrix, and user-management role table. Accent is staff rose
   (Section 2.4). Teacher color-coding (TEACHER_COLOR_PALETTE) is used
   here and in css/modules/timetable.css.
   ═══════════════════════════════════════════════════════════════════ */

:root {
  --staff-accent: #f43f5e;
}

/* ── Teacher card ── */
.teacher-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--card-bg, rgba(255, 255, 255, 0.03));
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius, 10px);
  transition: all 0.2s;
}

.teacher-card:hover {
  border-color: rgba(244, 63, 94, 0.25);
  transform: translateY(-2px);
}

.teacher-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #9f1239, var(--staff-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-inverse, #f1f5f9);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.teacher-details {
  flex: 1;
  min-width: 0;
}

.teacher-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--card-text, #e2e8f0);
}

.teacher-subjects {
  font-size: 0.72rem;
  color: var(--card-text-muted, #475569);
  margin-top: 2px;
}

.teacher-classes {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.teacher-class-tag {
  font-size: 0.62rem;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 99px;
  background: rgba(244, 63, 94, 0.1);
  color: var(--staff-accent);
}

.teacher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

/* ── Teacher performance ── */
.performance-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--card-border, rgba(255, 255, 255, 0.05));
}

.performance-row__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(244, 63, 94, 0.15);
  color: var(--staff-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.performance-row__name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--card-text, #e2e8f0);
  min-width: 140px;
}

.performance-row__bar {
  flex: 1;
}

.performance-row__pct {
  font-size: 0.75rem;
  font-weight: 700;
  min-width: 40px;
  text-align: right;
}

.performance-row__pct.high {
  color: var(--success);
}

.performance-row__pct.mid {
  color: var(--warning);
}

.performance-row__pct.low {
  color: var(--danger);
}

/* ── Teacher assignment matrix ── */
.assignment-matrix-wrap {
  overflow-x: auto;
  border-radius: var(--radius, 10px);
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.07));
}

.assignment-matrix {
  border-collapse: collapse;
  width: 100%;
  min-width: 700px;
}

.assignment-matrix th,
.assignment-matrix td {
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.06));
  padding: 8px;
  text-align: center;
  font-size: 0.75rem;
}

.assignment-matrix thead th {
  background: rgba(244, 63, 94, 0.08);
  color: var(--card-text, #e2e8f0);
  font-weight: 700;
  position: sticky;
  top: 0;
}

.assignment-matrix td.row-header {
  text-align: left;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
}

.assignment-cell {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  margin: 0 auto;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s;
}

.assignment-cell:hover {
  transform: scale(1.15);
}

.assignment-cell.assigned {
  background: var(--staff-accent);
}

.assignment-cell.empty {
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.1);
}

.assignment-cell.conflict {
  background: var(--danger);
}

/* ── User management table ── */
.role-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 99px;
  text-transform: capitalize;
}

.role-badge.admin {
  background: rgba(139, 92, 246, 0.15);
  color: var(--academics-accent, #8b5cf6);
}

.role-badge.teacher {
  background: rgba(244, 63, 94, 0.15);
  color: var(--staff-accent);
}

.role-badge.accountant {
  background: rgba(16, 185, 129, 0.15);
  color: var(--finance-accent, #10b981);
}

.user-account-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
}

.user-account-status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.user-account-status.active .dot {
  background: var(--success);
}

.user-account-status.suspended .dot {
  background: var(--danger);
}

@media (max-width: 768px) {
  .teacher-grid {
    grid-template-columns: 1fr;
  }

  .performance-row {
    flex-wrap: wrap;
  }

  .performance-row__name {
    min-width: 100%;
  }
}