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#0000000f;overflow:hidden}.overview-section-header{padding:16px 20px;border-bottom:1px solid #f3f4f6;font-size:14px;font-weight:600;color:#1f2937}.overview-table{width:100%;font-size:13px;border-collapse:collapse}.overview-table th{text-align:left;padding:10px 20px;font-weight:500;color:#6b7280;background:#f9fafb;border-bottom:1px solid #e5e7eb;font-size:12px;text-transform:uppercase;letter-spacing:.3px}.overview-table td{padding:10px 20px;color:#374151;border-bottom:1px solid #f3f4f6}.overview-table tr:last-child td{border-bottom:none}.overview-table tr:hover td{background:#f9fafb}.att-badge{display:inline-block;padding:2px 10px;border-radius:9999px;font-size:12px;font-weight:600}.att-badge.green{background:#d1fae5;color:#065f46}.att-badge.amber{background:#fef3c7;color:#92400e}.att-badge.red{background:#fee2e2;color:#991b1b}.att-badge.gray{background:#f3f4f6;color:#6b7280}.users-toolbar{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.users-search{flex:1;min-width:200px;max-width:360px;padding:8px 12px 8px 36px;border:1px solid #e5e7eb;border-radius:8px;font-size:14px;outline:none;transition:border-color .15s;background:#fff}.users-search:focus{border-color:#00aeef;box-shadow:0 0 0 3px #00aeef1a}.users-search-wrap{position:relative;flex:1;min-width:200px;max-width:360px}.users-search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:#9ca3af;pointer-events:none}.btn-primary{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:#00aeef;color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s}.btn-primary:hover{background:#0098d4}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:#fff;color:#374151;border:1px solid #e5e7eb;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s}.btn-secondary:hover{background:#f3f4f6;border-color:#d1d5db}.btn-danger{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:#fff;color:#dc2626;border:1px solid #fecaca;border-radius:8px;font-size:13px;font-weight:500;cursor:pointer;transition:background .15s}.btn-danger:hover{background:#fef2f2}.btn-icon{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:6px;border:none;background:transparent;cursor:pointer;color:#6b7280;transition:background .15s,color .15s}.btn-icon:hover{background:#f3f4f6;color:#1f2937}.btn-icon.danger:hover{background:#fef2f2;color:#dc2626}.user-row td{vertical-align:middle}.role-badge{display:inline-block;padding:2px 10px;border-radius:9999px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.3px}.role-badge.admin{background:#dbeafe;color:#1e40af}.role-badge.instructor{background:#f3e8ff;color:#6b21a8}.role-badge.user{background:#f3f4f6;color:#6b7280}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .15s ease}.modal-box{background:#fff;border-radius:14px;box-shadow:0 20px 60px #0003;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;animation:slideUp .2s ease}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 16px;border-bottom:1px solid #f3f4f6}.modal-header h3{font-size:16px;font-weight:600;color:#1f2937;margin:0}.modal-body{padding:20px 24px}.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 24px;border-top:1px solid #f3f4f6}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;color:#374151;margin-bottom:6px}.form-input{width:100%;padding:8px 12px;border:1px solid #e5e7eb;border-radius:8px;font-size:14px;outline:none;transition:border-color .15s;box-sizing:border-box}.form-input:focus{border-color:#00aeef;box-shadow:0 0 0 3px #00aeef1a}.form-select{width:100%;padding:8px 12px;border:1px solid #e5e7eb;border-radius:8px;font-size:14px;outline:none;background:#fff;cursor:pointer;transition:border-color .15s;box-sizing:border-box}.form-select:focus{border-color:#00aeef;box-shadow:0 0 0 3px #00aeef1a}.form-error{font-size:12px;color:#dc2626;margin-top:4px}.toast{position:fixed;bottom:24px;right:24px;padding:12px 20px;border-radius:10px;font-size:14px;font-weight:500;box-shadow:0 8px 24px #00000026;z-index:2000;animation:slideUp .2s ease}.toast.success{background:#065f46;color:#fff}.toast.error{background:#991b1b;color:#fff}.empty-state{text-align:center;padding:48px 20px;color:#9ca3af}.empty-state-icon{margin-bottom:12px;color:#d1d5db}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}