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1.5rem;background:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);font-size:.875rem;font-weight:500;cursor:pointer;transition:var(--transition);white-space:nowrap}.test-email-button:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.test-email-button:disabled{background:var(--gray-300);cursor:not-allowed;opacity:.6}@media (max-width: 768px){.setting-row{flex-direction:column;align-items:flex-start;gap:1rem}.setting-label{padding-right:0}.setting-value{width:100%}.setting-input{width:100%;min-width:0}.test-email-controls{flex-direction:column}.test-email-button{width:100%}}.analytics-dashboard{padding:2rem;max-width:1400px;margin:0 auto}.analytics-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.analytics-header 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ease;cursor:pointer}.chart-bar.assignments{background:linear-gradient(180deg,var(--primary),var(--primary-dark))}.chart-bar.returns{background:linear-gradient(180deg,#10b981,#059669)}.chart-bar:hover{opacity:.8;transform:scaleY(1.02)}.chart-label{font-size:.7rem;color:var(--gray-600);margin-top:.5rem;text-align:center}.chart-legend{display:flex;justify-content:center;gap:1.5rem;padding:.75rem;background:#fff;border-radius:6px;border:1px solid var(--gray-200)}.legend-item{display:flex;align-items:center;gap:.5rem;font-size:.875rem;color:var(--gray-700)}.legend-color{width:16px;height:16px;border-radius:3px}.legend-color.assignments{background:var(--primary)}.legend-color.returns{background:#10b981}.analytics-table{overflow-x:auto;border-radius:8px;border:1px solid var(--gray-200)}.analytics-table table{width:100%;border-collapse:collapse;background:#fff}.analytics-table thead{background:var(--gray-50);border-bottom:2px solid var(--gray-200)}.analytics-table th{padding:.875rem 1rem;text-align:left;font-size:.875rem;font-weight:600;color:var(--gray-700);white-space:nowrap}.analytics-table td{padding:.875rem 1rem;border-bottom:1px solid var(--gray-100);font-size:.875rem;color:var(--gray-700)}.analytics-table tr:last-child td{border-bottom:none}.analytics-table tr:hover{background:var(--gray-50)}.license-name,.teacher-name{font-weight:500;color:var(--gray-900)}.teacher-email{color:var(--gray-600);font-size:.8125rem}.badge{display:inline-block;padding:.25rem .75rem;border-radius:12px;font-size:.8125rem;font-weight:500;white-space:nowrap}.badge-assigned{background:var(--warning-light);color:var(--warning-dark)}.badge-available{background:var(--success-light);color:var(--success-dark)}.badge-count{background:var(--primary-light);color:var(--primary-dark)}.badge-current{background:var(--info-light);color:var(--info-dark)}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.summary-card{background:var(--gray-50);border-radius:8px;padding:1.25rem;border:1px solid var(--gray-200);text-align:center}.summary-label{font-size:.875rem;color:var(--gray-600);margin-bottom:.5rem;font-weight:500}.summary-value{font-size:1.75rem;font-weight:700;color:var(--gray-900)}.analytics-dashboard .loading,.analytics-dashboard .error-message{text-align:center;padding:3rem;font-size:1.125rem;color:var(--gray-600)}.analytics-dashboard .error-message{color:var(--danger)}@media (max-width: 768px){.analytics-dashboard{padding:1rem}.analytics-header{flex-direction:column;align-items:flex-start}.analytics-actions{width:100%}.period-selector,.btn-export,.btn-refresh{flex:1}.overview-grid{grid-template-columns:1fr}.stat-card{padding:1rem}.stat-value{font-size:1.5rem}.chart-container{height:150px}.analytics-table{font-size:.8125rem}.analytics-table th,.analytics-table td{padding:.625rem .75rem}.summary-grid{grid-template-columns:1fr}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:#fff;border-radius:12px;padding:0;max-width:500px;width:90%;box-shadow:var(--shadow-lg);animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--gray-200)}.modal-header h3{margin:0;color:var(--gray-900);font-size:1.25rem}.modal-close{background:none;border:none;font-size:1.5rem;color:var(--gray-500);cursor:pointer;padding:.25rem .5rem;transition:var(--transition);line-height:1}.modal-close:hover{color:var(--gray-700);background:var(--gray-100);border-radius:6px}.modal-body{padding:1.5rem}.modal-body p{margin:0;color:var(--gray-700);line-height:1.6}.modal-body strong{color:var(--primary);font-weight:600}.modal-wide{max-width:900px}.modal-subtitle{margin:.25rem 0 0;font-size:.875rem;color:var(--gray-500);font-weight:400}.clickable-badge{cursor:pointer;transition:var(--transition)}.clickable-badge:hover{filter:brightness(.9);transform:scale(1.08);box-shadow:var(--shadow-sm)}.badge-active{background:var(--success-light);color:var(--success-dark)}.badge-expired{background:var(--warning-light, #fef3c7);color:var(--warning-dark, #92400e)}.badge-cancelled{background:var(--danger-light, #fee2e2);color:var(--danger-dark, #991b1b)}.badge-pending{background:var(--gray-100);color:var(--gray-600)}.license-cell{display:flex;flex-direction:column;gap:2px}.license-email{font-size:.8rem;font-weight:600;color:var(--gray-800)}.license-user{font-size:.75rem;color:var(--gray-500)}.license-account{font-size:.7rem;color:var(--gray-400)}