*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}.material-symbols-outlined,.sidebar,.badge,.nav-item,.top-app-bar,.sidebar-brand,.class-row-arrow,.member-pending-badge,.class-tag-badge{user-select:none}:focus:not(:focus-visible){outline:none}*{-webkit-tap-highlight-color:transparent}html,body{height:100%}body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;display:flex}a{color:inherit;text-decoration:none}.sidebar{position:fixed;top:0;left:0;width:260px;flex-shrink:0;height:100%;background:var(--color-surface);border-right:1px solid #E2E8F0;display:flex;flex-direction:column;z-index:150;transition:transform 0.3s ease;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:10px;height:64px;padding:0 20px;white-space:nowrap;flex-shrink:0;border-bottom:1px solid var(--color-border);font-size:1.125rem;font-weight:700;color:var(--color-text);overflow:visible}.lang-dropdown{position:relative;flex-shrink:0}.lang-btn{width:33px;height:33px;padding:0;border:1px solid #CBD5E1;border-radius:10px;background:var(--color-bg);color:var(--color-text-muted);cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center}.lang-btn:hover{background:#E2E8F0;color:var(--color-text);border-color:#94A3B8}.lang-menu{display:none;position:absolute;top:38px;right:0;z-index:999;background:#fff;border:1px solid #E2E8F0;border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,0.1);min-width:140px;padding:4px;overflow:hidden}.lang-menu.show{display:block}.lang-option{padding:8px 12px;font-size:0.8125rem;color:#334155;cursor:pointer;border-radius:6px;display:flex;align-items:center;justify-content:space-between;transition:background .1s}.lang-option:hover{background:#F1F5F9}.lang-option.active{font-weight:600;color:var(--color-primary);background:#EFF6FF}.sidebar-nav{flex:1;overflow-y:auto;padding:12px 0}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 20px;margin:2px 8px;border-radius:10px;font-size:0.875rem;font-weight:500;color:#475569;transition:all 0.15s;cursor:pointer}.nav-item:hover{background:#F1F5F9;color:var(--color-text)}.nav-item.active{background:#EFF6FF;color:var(--color-primary)}.nav-item .material-symbols-outlined{font-size:20px}.sidebar-footer{padding:12px 16px;border-top:1px solid #E2E8F0;font-size:0.8125rem}.sidebar-footer.clickable{cursor:pointer;transition:background 0.15s}.sidebar-footer.clickable:hover{background:var(--color-bg)}.sidebar-footer .user-card{display:flex;align-items:center;gap:10px;pointer-events:none}.sidebar-footer .user-avatar{width:36px;height:36px;border-radius:50%;background:#1E293B;color:#fff;display:flex;align-items:center;justify-content:center;font-size:0.875rem;font-weight:600;flex-shrink:0}.sidebar-footer img.user-avatar{background:transparent;object-fit:cover;border:none;outline:none}.sidebar-footer .user-info{flex:1;min-width:0}.sidebar-footer .user-name{display:flex;align-items:center;gap:6px;font-weight:600;font-size:0.875rem;color:var(--color-text)}.sidebar-footer .user-email{font-size:0.75rem;color:#94A3B8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-footer .auth-links{display:flex;gap:8px}.sidebar-footer .auth-links a{flex:1;text-align:center;padding:8px;border-radius:8px;font-size:0.8125rem;font-weight:500;transition:background 0.15s}.sidebar-footer .auth-links a:hover{background:#F1F5F9}.sidebar-footer .logout-link{display:block;text-align:center;padding:8px;margin-top:4px;border-radius:8px;font-size:0.8125rem;color:#DC2626;font-weight:500;transition:background 0.15s}.sidebar-footer .logout-link:hover{background:#FEF2F2}.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.3);z-index:140}.sidebar-overlay.show{display:block}.top-app-bar{position:sticky;top:0;z-index:100;display:flex;align-items:center;gap:16px;min-height:64px;height:64px;box-sizing:border-box;padding:0 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border)}.mobile-menu-btn{display:none;background:none;border:none;cursor:pointer;color:#475569;padding:4px;border-radius:8px;align-items:center;justify-content:center}.mobile-menu-btn:hover{background:#F1F5F9}.mobile-menu-btn .material-symbols-outlined{font-size:24px}.top-app-bar-title{font-size:1.125rem;font-weight:600;flex:1}.top-app-bar-actions{display:flex;align-items:center;gap:12px}.top-app-bar-actions .search-input{border:1px solid #E2E8F0;border-radius:10px;padding:8px 14px;font-size:0.8125rem;font-family:inherit;background:var(--color-bg);outline:none;width:200px;transition:border-color 0.15s}.top-app-bar-actions .search-input:focus{border-color:#1E293B;background:#fff}.main-area{flex:1;margin-left:260px;min-height:100vh;display:flex;flex-direction:column}main{padding:24px;flex:1}.card{background:var(--color-surface);border-radius:16px;box-shadow:0 2px 12px rgba(0,0,0,0.06);padding:20px;margin-bottom:16px}.card-title{font-size:0.9375rem;font-weight:600;margin-bottom:12px;color:var(--color-text)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:10px 18px;border:none;border-radius:10px;font-size:0.875rem;font-weight:500;font-family:inherit;cursor:pointer;transition:all 0.15s}.btn-primary{background:#1E293B;color:#FFFFFF}.btn-primary:hover{background:#0F172A}.btn-primary:disabled{opacity:0.6;cursor:not-allowed}.btn-secondary{background:#F1F5F9;color:#475569;border:1px solid #E2E8F0}.btn-secondary:hover{background:#E2E8F0}.btn-ghost{background:transparent;color:var(--color-text-muted)}.btn-ghost:hover{background:#F1F5F9}.btn-sm{padding:6px 12px;font-size:0.8125rem}.btn-icon{width:36px;height:36px;padding:0;border:none;border-radius:10px;background:transparent;color:#475569;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background 0.15s;font-family:inherit}.btn-icon:hover{background:#F1F5F9}.btn-icon .material-symbols-outlined{font-size:20px}.auth-field{position:relative;display:flex;align-items:center;margin-bottom:12px;background:var(--color-bg);border:1px solid #E2E8F0;border-radius:10px;transition:border-color 0.15s}.auth-field:focus-within{border-color:#1E293B}.auth-field .field-icon{color:#94A3B8;margin-left:14px;font-size:20px;flex-shrink:0}.auth-field input{flex:1;border:none;background:transparent;padding:12px 12px 12px 10px;font-size:0.875rem;font-family:inherit;color:var(--color-text);outline:none}.auth-field input::placeholder{color:#94A3B8}.auth-field .field-suffix{background:none;border:none;padding:0 12px;cursor:pointer;color:#1E293B;font-size:0.8125rem;font-weight:500;font-family:inherit}.btn-action{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border:none;border-radius:8px;font-size:0.8125rem;font-weight:500;font-family:inherit;cursor:pointer;transition:all 0.15s;background:var(--color-bg);color:var(--color-text)}.btn-action:hover{background:#E2E8F0}.btn-action.primary{background:#1E293B;color:#fff}.btn-action.primary:hover{background:#0F172A}.btn-action.danger{background:none;color:var(--color-danger)}.btn-action.danger:hover{background:#FEF2F2}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:6px;font-size:0.6875rem;font-weight:600;vertical-align:middle}.badge-blue{background:#F1F5F9;color:#1E293B}.badge-green{background:#F0FDF4;color:#16A34A}.badge-orange{background:#FFF7ED;color:#EA580C}.badge-purple{background:#FAF5FF;color:#9333EA}.badge-red{background:#FEF2F2;color:#DC2626}.badge-gray{background:#F1F5F9;color:var(--color-text-muted)}.badge-pro{background:#F0FDF4;color:#16A34A}.badge-teacher{background:#FAF5FF;color:#9333EA}.badge-free{background:#F1F5F9;color:var(--color-text-muted)}.chips-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.chip{padding:6px 14px;border-radius:20px;font-size:0.8125rem;font-weight:500;border:1px solid #E2E8F0;background:#fff;color:#475569;cursor:pointer;transition:all 0.15s;font-family:inherit;white-space:nowrap;line-height:1.4}.chip:hover{border-color:#1E293B;color:#1E293B}.chip.active{background:#1E293B;border-color:#1E293B;color:#fff}.progress-bar{width:100%;height:6px;background:#F1F5F9;border-radius:3px;overflow:hidden}.progress-fill{height:100%;border-radius:3px;background:#1E293B;transition:width 0.3s}.progress-fill.green{background:#22C55E}.progress-fill.orange{background:#F97316}.progress-fill.red{background:#EF4444}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;text-align:center}.empty-state .empty-icon{font-size:48px;color:#CBD5E1;margin-bottom:16px}.empty-state h3{font-size:1rem;font-weight:600;color:var(--color-text-muted);margin-bottom:8px}.empty-state p{font-size:0.875rem;color:#94A3B8;max-width:320px}.msg-success{display:block;font-size:0.8125rem;color:#16A34A;padding:8px 0}.msg-error{display:block;font-size:0.8125rem;color:#DC2626;padding:8px 0}.tabs{display:flex;gap:0;border-bottom:1px solid var(--color-border);margin-bottom:20px}.tab{padding:10px 20px;font-size:0.875rem;font-weight:500;color:var(--color-text-muted);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:all 0.15s;font-family:inherit}.tab:hover{color:var(--color-text)}.tab.active{color:#1E293B;border-bottom-color:#1E293B}.tab-panel{display:none}.tab-panel.active{display:block}.question-card{background:var(--color-bg);border-radius:12px;padding:16px;margin-bottom:12px;border:1px solid #E2E8F0}.question-header{display:flex;align-items:center;gap:8px;margin-bottom:10px}.question-number{font-size:0.75rem;font-weight:600;color:var(--color-text-muted);background:#E2E8F0;padding:2px 8px;border-radius:4px}.question-text{font-size:0.875rem;font-weight:500;margin-bottom:12px;line-height:1.6}.question-options{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.option{display:flex;align-items:flex-start;gap:8px;padding:8px 12px;border-radius:8px;border:1px solid #E2E8F0;background:#fff;font-size:0.8125rem;line-height:1.5;cursor:pointer;transition:all 0.15s}.option:hover{border-color:#94A3B8}.option input[type="radio"]{margin-top:2px}.option.correct{border-color:#22C55E;background:#F0FDF4}.option.wrong{border-color:#EF4444;background:#FEF2F2}.evidence-box{border-left:3px solid #3b82f6;padding:8px 12px;background:#fff;border-radius:0 8px 8px 0;margin-top:8px;font-size:0.8125rem;color:#475569;line-height:1.5}.evidence-tag{display:inline-block;font-size:0.6875rem;font-weight:600;padding:1px 6px;border-radius:4px;margin-bottom:4px}.distractor-item{display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:0.8125rem;color:var(--color-text-muted)}.distractor-item .distractor-option{font-weight:600;color:var(--color-text);white-space:nowrap}.distractor-item .distractor-label{font-size:0.6875rem;padding:1px 6px;border-radius:4px;background:#F1F5F9;color:var(--color-text-muted);white-space:nowrap}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}.stat-card{background:var(--color-surface);border-radius:12px;padding:16px;box-shadow:0 1px 6px rgba(0,0,0,0.05);display:flex;flex-direction:column}.stat-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:8px}.stat-icon .material-symbols-outlined{font-size:18px}.stat-value{font-size:1.5rem;font-weight:700;line-height:1.2}.stat-label{font-size:0.75rem;color:var(--color-text-muted);margin-top:4px}.stat-change{font-size:0.6875rem;color:var(--color-text-muted);margin-top:2px}.chart-container{padding:8px 0}.chart-bars{display:flex;align-items:flex-end;justify-content:space-between;height:120px;gap:8px;padding:0 4px}.chart-bar-wrap{flex:1;display:flex;flex-direction:column;align-items:center;height:100%;justify-content:flex-end}.chart-bar{width:100%;max-width:32px;border-radius:4px 4px 0 0;background:#F1F5F9;transition:height 0.3s;position:relative;min-height:4px}.chart-bar-label{font-size:0.625rem;color:#94A3B8;margin-top:6px}.chart-bar-value{font-size:0.625rem;color:var(--color-text-muted);margin-bottom:2px}.paper-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.paper-card{background:var(--color-surface);border-radius:16px;padding:20px;box-shadow:0 2px 12px rgba(0,0,0,0.06);cursor:pointer;transition:all 0.2s;display:flex;flex-direction:column;gap:10px}.paper-card:hover{box-shadow:0 4px 20px rgba(0,0,0,0.1);transform:translateY(-2px)}.paper-card-top{display:flex;align-items:center;gap:10px}.paper-card-title{font-size:0.9375rem;font-weight:600;line-height:1.4;color:#1E293B}.paper-card-meta{font-size:0.75rem;color:#94A3B8;display:flex;gap:12px}.paper-card-progress{display:flex;align-items:center;gap:8px;margin-top:2px}.paper-card-bar{flex:1;height:4px;background:#E2E8F0;border-radius:2px;overflow:hidden}.paper-card-fill{height:100%;background:#3B82F6;border-radius:2px;transition:width 0.3s}.paper-card-pct{font-size:0.6875rem;color:#94A3B8;min-width:32px;text-align:right}.sub-delete-btn{background:none;border:none;color:#94A3B8;cursor:pointer;font-size:1.125rem;line-height:1;padding:0 2px;margin-left:auto;border-radius:4px}.sub-delete-btn:hover{color:#DC2626;background:#FEF2F2}.analysis-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.analysis-card{background:var(--color-bg);border-radius:12px;padding:16px;border:1px solid #E2E8F0}.analysis-card-title{font-size:0.8125rem;font-weight:600;margin-bottom:10px;color:var(--color-text-muted)}.analysis-stat{display:flex;justify-content:space-between;align-items:center;padding:6px 0;font-size:0.8125rem}.analysis-stat .stat-name{color:#475569}.analysis-stat .stat-val{font-weight:600}.area-tag{display:inline-block;padding:4px 10px;border-radius:6px;font-size:0.75rem;font-weight:500;margin:2px}.area-tag.strength{background:#F0FDF4;color:#16A34A}.area-tag.weakness{background:#FEF2F2;color:#DC2626}.recent-paper{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid #F1F5F9;cursor:pointer}.recent-paper:last-child{border-bottom:none}.recent-paper:hover{opacity:0.8}.recent-paper-info{flex:1;min-width:0}.recent-paper-title{font-size:0.8125rem;font-weight:500}.recent-paper-meta{font-size:0.6875rem;color:#94A3B8;margin-top:2px}.recent-paper-progress{width:80px}.quick-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.quick-action{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px;border-radius:12px;background:var(--color-bg);border:1px solid #E2E8F0;cursor:pointer;transition:all 0.15s;font-family:inherit}.quick-action:hover{background:#F1F5F9;border-color:#1E293B}.quick-action .material-symbols-outlined{font-size:28px;color:#1E293B}.quick-action span:last-child{font-size:0.75rem;color:#475569;font-weight:500}.settings-section-title{font-size:1rem;font-weight:600;margin-bottom:16px}.settings-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.settings-label{font-size:0.8125rem;color:var(--color-text-muted);min-width:80px}.settings-value{font-size:0.875rem;font-weight:500}.upload-zone{border:2px dashed #CBD5E1;border-radius:16px;padding:40px;text-align:center;cursor:pointer;transition:all 0.15s;background:var(--color-bg)}.upload-zone:hover{border-color:#1E293B;background:#F1F5F9}.upload-zone .upload-icon{font-size:48px;color:#94A3B8;margin-bottom:12px}.upload-zone h3{font-size:0.9375rem;font-weight:600;color:#475569;margin-bottom:4px}.upload-zone p{font-size:0.8125rem;color:#94A3B8}.upload-zone.dragover{border-color:#1E293B;background:#F1F5F9}.loading-state{display:flex;flex-direction:column;align-items:center;padding:40px;color:var(--color-text-muted)}.loading-state .material-symbols-outlined{font-size:32px;margin-bottom:8px;animation:spin 1s linear infinite}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}.modal-overlay{display:none;position:fixed;inset:0;background:rgba(15,23,42,0.4);z-index:200;align-items:center;justify-content:center;padding:24px}.modal-overlay.show{display:flex}.modal-box{background:var(--color-surface);border-radius:14px;padding:28px 24px 20px;max-width:340px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,0.15);text-align:center}.modal-title{font-size:1rem;font-weight:600;margin-bottom:4px}.modal-actions{display:flex;gap:10px;margin-top:4px}.modal-actions button{flex:1;padding:12px;border-radius:10px;font-size:0.875rem;font-weight:600;cursor:pointer;font-family:inherit;transition:all 0.15s}.modal-ok{background:#1E293B;color:#FFFFFF;border:none}.modal-ok:hover:not(:disabled){background:#0F172A}.modal-ok:disabled{opacity:0.5;cursor:not-allowed}.modal-cancel{background:var(--color-surface);color:var(--color-text-muted);border:1px solid #E2E8F0}.modal-cancel:hover{background:var(--color-bg)}.modal-section{margin-bottom:12px}.modal-label{font-size:0.75rem;color:var(--color-text-muted);margin-bottom:6px;text-align:left}.setting-group{margin-bottom:16px}.setting-group:last-child{margin-bottom:0}.setting-group-label{font-size:0.8125rem;font-weight:500;color:var(--color-text);margin-bottom:2px}.setting-group-desc{font-size:0.6875rem;color:var(--color-text-muted)}.setting-group-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.setting-group-input{width:100%;padding:10px 12px;border:1px solid #E2E8F0;border-radius:10px;font-size:0.875rem;font-family:inherit;color:var(--color-text);background:var(--color-bg);outline:none;transition:border-color 0.15s;box-sizing:border-box}.setting-group-input:focus{border-color:#1E293B}.class-tab-bar{display:flex;gap:0;border-bottom:2px solid var(--color-border);margin-top:12px}.class-tab{padding:10px 20px;border:none;background:none;font-size:0.875rem;font-weight:500;font-family:inherit;color:var(--color-text-muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all 0.15s}.class-tab:hover{color:var(--color-text)}.class-tab.active{color:#1E293B;border-bottom-color:#1E293B}.class-row{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;cursor:pointer;transition:background 0.1s;border-top:1px solid var(--color-border)}.class-row-first{border-top:none}.class-row-pending{opacity:0.5;cursor:default;pointer-events:none}.class-row-pending:hover{background:transparent}.class-tag-badge{display:inline-block;padding:2px 6px;border-radius:4px;background:var(--color-bg);color:var(--c-slate-600);font-size:0.625rem;font-weight:500;margin-right:4px;vertical-align:middle}.member-pending-badge{vertical-align:middle}.class-row:hover{background:var(--color-bg)}.class-row-main{flex:1;min-width:0}.class-row-name{font-size:0.875rem;font-weight:500;color:var(--color-text);margin-bottom:3px;display:flex;align-items:center;gap:6px}.class-row-meta{display:flex;align-items:center;gap:12px;font-size:0.75rem;color:var(--color-text-muted);flex-wrap:wrap}.class-row-code{font-family:monospace;font-weight:600;letter-spacing:1px}.class-row-arrow{font-size:18px;color:var(--color-text-muted);flex-shrink:0;margin-left:12px;align-self:center}.member-grid{display:flex;flex-wrap:wrap;gap:10px}.member-card{width:100px;padding:12px 8px 10px;border-radius:10px;text-align:center;cursor:pointer;transition:background 0.15s;position:relative}.member-card:hover{background:var(--color-bg)}.member-card .member-avatar{width:44px;height:44px;border-radius:50%;margin:0 auto 6px;display:block;object-fit:cover}.member-card .member-name{font-size:0.8125rem;font-weight:500;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:2px;max-width:100px}.member-card .member-id{font-size:0.625rem;color:var(--color-text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.member-card .member-score{font-size:0.6875rem;color:var(--c-slate-500);margin-top:4px;font-weight:500}.member-card.pending{opacity:0.5}.member-pending-badge{display:inline-block;margin-left:4px;padding:0 4px;border-radius:3px;background:#FEF3C7;color:#D97706;font-size:0.5625rem;font-weight:600;vertical-align:middle}.cus-select{position:relative;display:inline-block;min-width:200px;max-width:100%}.modal-section .cus-select{width:100%}.cus-select-trigger{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:8px 12px;border:1px solid #CBD5E1;border-radius:8px;font-size:0.8125rem;font-family:inherit;background:var(--color-surface);cursor:pointer;text-align:left;color:var(--color-text)}.cus-select-trigger:hover{border-color:#94A3B8}.cus-select-trigger .material-symbols-outlined{font-size:18px;color:#94A3B8;transition:transform 0.2s}.cus-select.open .cus-select-trigger .material-symbols-outlined{transform:rotate(180deg)}.cus-select-menu{position:absolute;top:100%;left:0;right:0;z-index:50;margin-top:4px;background:var(--color-surface);border:1px solid #E2E8F0;border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,0.1);max-height:240px;overflow-y:auto;display:none}.cus-select.open .cus-select-menu{display:block}.cus-select.up .cus-select-menu{top:auto;bottom:100%;margin-top:0;margin-bottom:4px}.cus-select-option{padding:8px 12px;font-size:0.8125rem;color:var(--color-text);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cus-select-option:hover{background:#F1F5F9}.cus-select-option.selected{font-weight:600;color:var(--color-primary);background:#EFF6FF}.member-dropdown{position:fixed;z-index:210;min-width:150px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:10px;box-shadow:0 4px 20px rgba(0,0,0,0.12);overflow:hidden;font-size:0.8125rem}.member-dropdown-item{padding:8px 12px;cursor:pointer;transition:background 0.1s}.member-dropdown-item:hover{background:var(--color-bg)}.member-dropdown-item.danger{color:var(--color-danger)}.member-dropdown-item.danger:hover{background:#FEF2F2}.member-dropdown-score{display:flex;align-items:center;gap:6px;padding:6px 10px;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}.member-dropdown-score .btn-action{background:#E2E8F0;color:#1E293B;font-weight:500;padding:4px 8px;border-radius:6px;font-size:0.75rem;min-width:28px;justify-content:center}.member-dropdown-score .btn-action:hover{background:#CBD5E1}.member-dropdown-divider{height:1px;background:var(--color-border);margin:2px 0}.toggle-switch{position:relative;display:inline-block;width:40px;height:22px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-switch .toggle-slider{position:absolute;inset:0;border-radius:22px;background:#CBD5E1;cursor:pointer;transition:background 0.2s}.toggle-switch .toggle-slider::before{content:'';position:absolute;width:18px;height:18px;left:2px;bottom:2px;border-radius:50%;background:#fff;transition:transform 0.2s}.toggle-switch input:checked+.toggle-slider{background:#1E293B}.toggle-switch input:checked+.toggle-slider::before{transform:translateX(18px)}.passage-text{background:var(--color-bg);border-radius:12px;padding:16px;margin-bottom:16px;border:1px solid #E2E8F0;line-height:1.8;font-size:0.875rem;color:#334155}.passage-text p{margin-bottom:8px}.passage-text p:last-child{margin-bottom:0}mark{background:transparent;border-bottom:2px solid;padding:0 2px;border-radius:2px}@media(max-width:768px){.sidebar{transform:translateX(-100%)}.sidebar.sidebar-open{transform:translateX(0)}.main-area{margin-left:0}.mobile-menu-btn{display:flex}.stats-grid{grid-template-columns:repeat(2,1fr)}.analysis-grid{grid-template-columns:1fr}.quick-actions{grid-template-columns:1fr}.paper-grid{grid-template-columns:1fr}.top-app-bar-actions .search-input{width:120px}.top-app-bar{padding:0 16px}main{padding:16px}}@media(max-width:480px){.stats-grid{grid-template-columns:1fr}}