:root{--f-sans:"Inter",-apple-system,BlinkMacSystemFont,sans-serif;--f-mono:"Roboto Mono","IBM Plex Mono",monospace;--space-unit:8px;--content-width:1440px;--radius:8px;--transition-smooth:all 0.25s cubic-bezier(0.4,0,0.2,1)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--c-bg-soft);color:var(--c-text-primary);font-family:var(--f-sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3{font-weight:600;line-height:1.2;letter-spacing:-0.025em}hr{border:0;border-top:1px solid var(--c-border);margin:calc(var(--space-unit) * 3) 0}.profile-grid{display:grid;gap:calc(var(--space-unit) * 4);padding:calc(var(--space-unit) * 2);grid-template-columns:230px 1fr 1fr;grid-template-rows:auto auto auto;align-items:start;grid-template-areas:"identity main secondary" "identity main secondary" "identity pdf pdf"}.user-profile-page .base-main-content,.admin-view-active .base-main-content{margin-left:0!important;padding:0}.grid-column-identity{grid-area:identity}.grid-column-main{grid-area:main}.grid-column-secondary{grid-area:secondary}.pdf-generator-section{grid-area:pdf}.grid-column-identity{grid-area:identity}.grid-column-main{grid-area:main}.grid-column-secondary{grid-area:secondary}.grid-column-identity{position:sticky;top:calc(var(--space-unit) * 4);height:calc(100vh - (var(--space-unit) * 8));display:flex;flex-direction:column}.profile-identity-card{text-align:left;display:flex;flex-direction:column;align-items:flex-start;gap:calc(var(--space-unit) * 2);margin-left:0.5rem;border:none!important;box-shadow:none!important;background:transparent!important}.profile-avatar{width:64px;height:64px;background:var(--c-bg);border:1px solid var(--c-border);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--c-text-muted);overflow:hidden}.profile-picture-img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.profile-name{font-size:1.4rem}.profile-email{font-size:1rem;color:var(--c-text-secondary);word-break:break-all}.profile-main-nav{margin:calc(var(--space-unit) * 4) 0;display:flex;flex-direction:column;gap:var(--space-unit)}.nav-button{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.5);padding:12px 20px;border-radius:8px;text-decoration:none;font-family:"Bricolage Grotesque",sans-serif;font-weight:700;color:var(--color-text-primary);background-color:var(--color-bg-card);border:3px solid var(--color-text-primary);width:100%;text-align:left;cursor:pointer;transition:all 0.15s cubic-bezier(0.4,0,0.2,1);box-shadow:4px 4px 0 var(--color-border-strong);margin-bottom:12px}.nav-button i{color:var(--color-text-muted);transition:all 0.15s ease}.nav-button:hover{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--color-border-strong);background-color:var(--color-bg-hover)}.nav-button:hover i{color:var(--color-text-primary)}.nav-button.primary{background-color:var(--button-primary-bg);color:var(--button-primary-text);border-color:var(--button-primary-bg)}.nav-button.primary i{color:var(--button-primary-text)!important}.nav-button.subtle{color:var(--c-text-secondary)}.nav-button.subtle:hover{color:var(--c-text-primary)}.nav-tabs .nav-link{font-weight:700;font-family:"Space Grotesk","Inter",sans-serif;font-size:0.95rem;padding:8px 16px;color:var(--color-text-secondary)!important;border:3px solid transparent!important;border-radius:8px!important;background-color:transparent!important;margin-right:8px;transition:all 0.15s cubic-bezier(0.4,0,0.2,1);box-shadow:none!important}.nav-tabs .nav-link:hover{background-color:var(--color-bg-hover)!important;color:var(--color-text-primary)!important;border-color:var(--color-border-strong)!important}.nav-tabs .nav-link.active,.nav-tabs .nav-link.active:hover{background-color:var(--color-bg-contrast)!important;color:var(--color-text-inverse-menu)!important;border-color:var(--color-text-primary)!important;box-shadow:3px 3px 0 var(--color-border-strong)!important}.nav-tabs{flex-wrap:nowrap!important}.logout-form-bottom{margin-top:auto}.grid-column-main,.grid-column-secondary{background:var(--color-bg-card);border:3px solid var(--color-border-strong);border-radius:16px;padding:calc(var(--space-unit) * 4);box-shadow:6px 6px 0 var(--overlay-contrast-08)}.section-controls{display:flex;gap:calc(var(--space-unit) * 2)}.header-action-button{display:inline-flex;align-items:center;gap:var(--space-unit);text-decoration:none;font-size:0.9rem;font-weight:500;color:var(--c-text-secondary);background-color:var(--c-bg-soft);padding:var(--space-unit) calc(var(--space-unit) * 1.5);border-radius:var(--radius);border:1px solid var(--c-border);transition:var(--transition-smooth)}.header-action-button:hover{color:var(--c-accent);border-color:var(--c-text-secondary)}.stats-container{display:grid;grid-template-columns:repeat(2,1fr);gap:calc(var(--space-unit) * 3)}.streak-icon{color:var(--c-text-primary);font-size:1.5rem}.xp-bar{width:100%;height:6px;background-color:var(--c-bg-soft);border-radius:3px;overflow:hidden;margin-top:var(--space-unit);border:1px solid var(--c-border)}.xp-progress{height:100%;background-color:var(--c-accent);border-radius:3px;transition:width 0.6s ease}.item-action-button{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;color:var(--c-text-secondary);border-radius:50%;transition:var(--transition-smooth);text-decoration:none;flex-shrink:0;box-sizing:border-box}.item-action-button:hover{background:var(--c-bg-soft);color:var(--c-accent);border-color:var(--c-border)}.item-action-button i{font-size:0.8rem}.empty-state{text-align:center;padding:calc(var(--space-unit) * 6) 0}.empty-title{font-size:1rem;font-weight:500;margin-bottom:var(--space-unit)}.empty-description{color:var(--c-text-secondary);max-width:40ch;margin:0 auto}.default-icon-container{display:flex;justify-content:center;align-items:center;background-color:var(--color-bg-soft);font-size:2.5rem;color:var(--color-text-tertiary)}.account-menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(249,249,249,0.5);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:1040;opacity:0;visibility:hidden;transition:opacity 0.4s ease,visibility 0.4s}.profile-grid.admin-grid{grid-template-columns:230px 1fr;grid-template-areas:"identity main" "identity main" "identity main";width:100%}.admin-view-active .grid-column-main{display:flex;flex-direction:column;gap:calc(var(--space-unit) * 4)}.admin-section{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:12px;padding:calc(var(--space-unit) * 4);box-shadow:0 1px 3px rgba(0,0,0,0.05);max-width:100%}.admin-stats-container{margin-top:calc(var(--space-unit) * 2);max-width:100%}.admin-chart-container{width:100%;max-width:100%;height:400px;position:relative}.quiz-heatmap-grid{display:flex;flex-direction:column;gap:calc(var(--space-unit) * 3)}.quiz-heatmap-module{display:flex;flex-direction:column;gap:calc(var(--space-unit) * 1.5)}.quiz-heatmap-module-title{font-weight:600;color:var(--c-text-primary)}.quiz-heatmap-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:calc(var(--space-unit) * 1.5)}.quiz-heatmap-tile{border:1px solid var(--c-border);border-radius:var(--radius);padding:calc(var(--space-unit) * 1.5);display:flex;align-items:center;justify-content:space-between;gap:calc(var(--space-unit) * 1.5);min-height:46px;-webkit-user-select:none;-moz-user-select:none;user-select:none}.quiz-heatmap-topic{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.quiz-heatmap-count{font-family:var(--f-mono);font-size:0.85rem;opacity:0.95;flex-shrink:0;padding:2px 8px;border-radius:999px}.heatmap-suggestions{position:absolute;left:0;right:0;top:calc(100% + 6px);background:var(--c-bg);border:1px solid var(--c-border);border-radius:10px;box-shadow:0 10px 24px rgba(0,0,0,0.1);max-height:280px;overflow:auto;z-index:10}.heatmap-suggestion-item{padding:10px 12px;cursor:pointer;display:flex;flex-direction:column;gap:2px}.heatmap-suggestion-item:hover,.heatmap-suggestion-item.active{background:var(--c-bg-soft)}.heatmap-suggestion-title{color:var(--c-text-primary);font-weight:600;line-height:1.2}.heatmap-suggestion-meta{color:var(--c-text-secondary);font-size:0.85rem}.chart-period-tabs{display:flex;gap:4px;background:var(--color-bg-soft);padding:4px;border-radius:8px}.period-tab,.quiz-period-tab{padding:6px 16px;border:none;background:transparent;color:var(--color-text-secondary);font-size:0.875rem;font-weight:500;border-radius:6px;cursor:pointer;transition:all 0.15s ease}.period-tab:hover,.quiz-period-tab:hover{color:var(--color-text-tertiary);background:rgba(255,255,255,0.5)}.period-tab.active,.quiz-period-tab.active{background:var(--color-bg-card);color:var(--color-text-primary);box-shadow:0 1px 2px rgba(0,0,0,0.05)}.user-info{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.5)}.user-rank{color:var(--color-text-secondary);font-size:0.875rem;min-width:32px}.user-name{font-weight:500;color:var(--color-text-primary)}.user-level{font-size:0.75rem;padding:2px 8px;background:var(--color-bg-soft);color:var(--color-text-secondary);border-radius:4px;font-weight:500}.xp-badge{font-family:var(--f-mono);font-size:0.875rem;font-weight:600;color:var(--color-success);background:var(--color-success-soft);padding:4px 10px;border-radius:6px;display:inline-block}.status-badge{font-size:0.75rem;padding:4px 10px;border-radius:6px;font-weight:600;text-transform:uppercase;display:inline-block}.status-active{background:var(--color-success-soft);color:var(--color-success)}.date-text{color:var(--color-text-secondary);font-size:0.875rem}.text-center{text-align:center!important}.admin-table .empty-state{text-align:center;color:var(--c-text-muted);font-style:italic}.admin-search-container{display:flex;flex-direction:column;gap:calc(var(--space-unit) * 2)}.admin-search-container .form-control{width:100%;padding:calc(var(--space-unit) * 1.5);border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-bg);color:var(--c-text-primary);font-size:0.95rem}.admin-search-container .form-control:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(45,45,45,0.1)}.user-info{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.5)}.user-rank{color:var(--color-text-secondary);font-size:0.875rem;min-width:32px}.user-name{font-weight:500;color:var(--color-text-primary)}.user-level{font-size:0.75rem;padding:2px 8px;background:var(--color-bg-soft);color:var(--color-text-secondary);border-radius:4px;font-weight:500}.xp-badge{font-family:var(--f-mono);font-size:0.875rem;font-weight:600;color:var(--color-success);background:var(--color-success-soft);padding:4px 10px;border-radius:6px;display:inline-block}.status-badge{font-size:0.75rem;padding:4px 10px;border-radius:6px;font-weight:600;text-transform:uppercase;display:inline-block}.status-active{background:var(--color-success-soft);color:var(--color-success)}.date-text{color:var(--color-text-secondary);font-size:0.875rem}.text-center{text-align:center!important}.dropdown-container{position:relative;display:inline-block}.dropdown-menu{position:absolute;right:0;top:calc(100% + 4px);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:8px;box-shadow:0 10px 25px rgba(0,0,0,0.1);min-width:160px;z-index:1000;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all 0.2s ease}.dropdown-menu.show{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{display:block;width:100%;padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);border:none;background:transparent;text-align:left;font-size:0.875rem;color:var(--color-text-tertiary);cursor:pointer;transition:all 0.15s ease;border-radius:0}.dropdown-item:first-child{border-radius:8px 8px 0 0}.dropdown-item:last-child{border-radius:0 0 8px 8px}.dropdown-item:hover{background:var(--color-bg-muted);color:var(--color-text-primary)}.dropdown-container{position:relative;display:inline-block}.dropdown-menu{position:absolute;right:0;top:calc(100% + 4px);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:8px;box-shadow:0 10px 25px rgba(0,0,0,0.1);min-width:160px;z-index:1000;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all 0.2s ease}.dropdown-menu.show{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{display:block;width:100%;padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);border:none;background:transparent;text-align:left;font-size:0.875rem;color:var(--color-text-tertiary);cursor:pointer;transition:all 0.15s ease;border-radius:0}.dropdown-item:first-child{border-radius:8px 8px 0 0}.dropdown-item:last-child{border-radius:0 0 8px 8px}.dropdown-item:hover{background:var(--color-bg-muted);color:var(--color-text-primary)}body.admin-view-active .base-main-content{background:transparent!important;min-height:100vh}body.admin-view-active{overflow:auto}.account-menu-overlay.active{opacity:1;visibility:visible}.account-menu{position:fixed;top:0;left:-450px;width:450px;max-width:calc(100vw - 20px);height:100vh;background:var(--c-bg);border-right:1px solid var(--c-border);z-index:1050;transition:left 0.4s cubic-bezier(0.4,0,0.2,1);display:flex;flex-direction:column;box-shadow:none}.account-menu.active{left:0}.account-menu-header{display:flex;justify-content:space-between;align-items:center;padding:calc(var(--space-unit) * 3) calc(var(--space-unit) * 4);border-bottom:1px solid var(--c-border);flex-shrink:0;min-height:60px}.account-menu-title{font-size:1.125rem;font-weight:600;letter-spacing:-0.01em}.account-menu-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--c-text-secondary);border-radius:50%;transition:var(--transition-smooth);cursor:pointer}.account-menu-close:hover{background:var(--c-bg-soft);color:var(--c-accent)}.account-menu-nav{padding:calc(var(--space-unit) * 2);border-bottom:1px solid var(--c-border);display:flex;flex-direction:column;gap:calc(var(--space-unit) * 0.5)}.account-menu-nav-item{display:flex;align-items:center;gap:calc(var(--space-unit) * 2);padding:calc(var(--space-unit) * 2.5) calc(var(--space-unit) * 2);border-radius:var(--radius);text-decoration:none;font-weight:500;color:var(--c-text-primary);background-color:transparent;border:none;width:100%;text-align:left;cursor:pointer;transition:var(--transition-smooth);min-height:48px;font-size:0.95rem}.account-menu-nav-item i{color:var(--c-text-secondary);transition:var(--transition-smooth)}.account-menu-nav-item:hover{background-color:var(--c-bg-soft)}.account-menu-nav-item.active{background-color:var(--c-bg-soft)}.account-menu-nav-item:hover i,.account-menu-nav-item.active i{color:var(--c-text-primary)}.account-menu-content{padding:calc(var(--space-unit) * 4);overflow-y:auto;flex-grow:1}.account-menu-tab{display:none}.account-menu-tab.active{display:block;margin-bottom:6rem}.modal .form-text{font-size:0.85rem;color:var(--c-text-tertiary);margin-top:4px}.nav-section-divider{padding-top:calc(var(--space-unit) * 2);margin-bottom:calc(var(--space-unit) * 2);border-top:1px solid var(--c-border)}.nav-section-buttons{margin-bottom:calc(var(--space-unit) * 2)}.nav-section-buttons .nav-button{text-align:left;width:100%}.logout-form-bottom form{margin:0}.profile-pic-container{position:relative;width:80px;height:80px;margin:0 auto;border-radius:50%!important}.profile-pic-container .profile-pic-preview{width:100%;height:100%;border-radius:50%;-o-object-fit:cover;object-fit:cover;border:1px solid var(--c-border)}.change-pic-label{position:absolute;bottom:0;right:0;background:var(--c-bg);border:1px solid var(--c-border);color:var(--c-text-primary);width:32px;height:32px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:0.9rem;transition:var(--transition-smooth)}.change-pic-label:hover{background:var(--c-accent);color:var(--c-bg);border-color:var(--c-accent)}.language-selector-container{display:flex;flex-wrap:wrap;gap:calc(var(--space-unit) * 1.5);margin-top:var(--space-unit)}.language-selector-grid{display:grid;grid-template-columns:repeat(4,1fr);flex-wrap:unset}.danger-zone{border:1px solid var(--color-danger-soft);background-color:var(--color-danger-soft);padding:calc(var(--space-unit) * 3);border-radius:var(--radius);text-align:center}.danger-title{font-weight:600;color:var(--color-danger);display:flex;align-items:center;justify-content:center;gap:var(--space-unit)}.danger-zone p{font-size:0.9rem;color:var(--c-text-secondary);margin:var(--space-unit) 0 calc(var(--space-unit) * 2) 0}.modal-content-danger{border:2px solid var(--c-accent)}#deleteConfirmModal .modal-header{background-color:var(--color-danger);border-bottom:1px solid var(--color-danger)}#deleteConfirmModal .modal-title-danger{font-weight:600;font-size:1.125rem;color:var(--color-text-inverse-menu)}#deleteConfirmModal .modal-body p{color:var(--c-text-secondary);margin-bottom:calc(var(--space-unit) * 2)}#deleteConfirmModal .modal-body strong{color:var(--c-text-primary);font-family:var(--f-mono);background:var(--c-bg-soft);padding:2px 6px;border-radius:4px;border:1px solid var(--c-border)}#deleteConfirmModal .form-control{text-align:center}.quiz-page body{background-color:var(--c-bg)}.form-container{max-width:800px;margin:40px auto;padding:var(--space-unit)}.quiz-page .form-control{background-color:var(--color-input-bg);border:3px solid var(--color-input-border);padding:calc(var(--space-unit) * 2);border-radius:var(--radius);font-family:var(--f-sans);font-size:1rem;color:var(--c-text-primary);width:100%!important;box-sizing:border-box;min-height:44px}.quiz-page .form-control:focus{border-color:var(--c-accent)}.quiz-page .form-control:disabled{background-color:var(--c-bg-mute);cursor:not-allowed}.lang-buttons{display:flex;gap:10px;margin-bottom:20px}.quiz-page .form-actions{margin-top:calc(var(--space-unit) * 4);display:flex;justify-content:space-between;align-items:center}.quiz-page .form-actions.form-actions-start{justify-content:flex-start;margin-top:20px}.quiz-page .form-actions.form-actions-end{justify-content:flex-end;margin-bottom:5rem}.quiz-page .form-actions.form-actions-space-between{justify-content:space-between;align-items:center;margin-bottom:5rem}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.6);display:none;align-items:center;justify-content:center;z-index:1000}.modal-content{background-color:var(--c-bg-soft);border-radius:var(--radius);border:1px solid var(--c-border);width:100%;max-width:1200px;margin-bottom:6rem}.modal-content-small{background-color:var(--c-bg-soft);padding:calc(var(--space-unit) * 3);border-radius:var(--radius);border:1px solid var(--c-border);width:90%;max-width:400px;text-align:center}.modal-actions{margin-top:calc(var(--space-unit) * 3);display:flex;justify-content:center;gap:var(--space-unit)}.modal-content h3{color:var(--c-text-primary);margin-top:0;margin-bottom:var(--space-unit)}.modal-content p{color:var(--c-text-secondary);margin-bottom:0}.option-group{padding:var(--space-unit);border:1px solid var(--c-border);border-radius:var(--radius);margin-bottom:var(--space-unit)}.option-input-container{display:flex;align-items:center;gap:var(--space-unit)}.custom-radio{display:inline-block;width:20px;height:20px;border:2px solid var(--c-border);border-radius:50%;cursor:pointer;position:relative}.option-radio-input:checked + .custom-radio{border-color:var(--c-accent)}.option-radio-input:checked + .custom-radio::after{content:"";width:10px;height:10px;background:var(--c-accent);border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.option-radio-input{opacity:0;position:absolute}.file-upload-wrapper{display:flex;align-items:center;gap:15px}.file-upload-input{width:0.1px;height:0.1px;opacity:0;overflow:hidden;position:absolute;z-index:-1}.file-upload-label{display:inline-flex;align-items:center;gap:8px;cursor:pointer}.file-upload-filename{color:var(--c-text-secondary);font-family:var(--f-mono);font-size:0.9rem}.pdf-generator-section{background:var(--color-bg-card);border:3px solid var(--color-border-strong);border-radius:16px;padding:calc(var(--space-unit) * 4);box-shadow:6px 6px 0 var(--overlay-contrast-08)}.pdf-generator-section .section-header{margin-bottom:calc(var(--space-unit) * 3);padding-bottom:calc(var(--space-unit) * 2);border-bottom:1px solid var(--c-border)}.pdf-generator-section .section-header h2{color:var(--c-text-primary);font-size:1.5rem;font-weight:600;margin:0}.pdf-generator-card{padding:calc(var(--space-unit) * 2)}.pdf-generator-card .form-section{margin-bottom:calc(var(--space-unit) * 3);padding-bottom:calc(var(--space-unit) * 2);border-bottom:1px solid var(--c-border)}.pdf-generator-card .form-section:last-of-type{border-bottom:none;margin-bottom:calc(var(--space-unit) * 2)}.grid-column-secondary .content-section:nth-child(2){margin-top:0}.content-selection-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:calc(var(--space-unit) * 2)}.format-options{display:flex;flex-direction:column;gap:var(--space-unit)}.settings-grid{display:grid;grid-template-columns:1fr 2fr 1fr;gap:calc(var(--space-unit) * 2);align-items:end}.limit-input-container{display:flex;align-items:center;gap:calc(var(--space-unit) * 2)}#pdf-limit-input{min-width:110px;width:auto;flex-shrink:0}.available-questions-indicator{display:flex;align-items:center;justify-content:center;gap:var(--space-unit);padding:calc(var(--space-unit) * 0.75) calc(var(--space-unit) * 1.5);background-color:var(--c-bg-soft);border:1px solid var(--c-border);border-radius:var(--radius);font-size:0.875rem;color:var(--c-text-secondary)}.available-count{font-family:var(--f-mono);font-weight:600;color:var(--c-text-primary)}.available-label{font-size:0.8rem}.verified-toggle{display:flex;align-items:center;justify-content:flex-start;min-height:48px;margin-top:calc(var(--space-unit) * 2);padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);background:var(--c-bg-soft);border:1px solid var(--c-border);border-radius:var(--radius);transition:var(--transition-smooth);cursor:pointer}.verified-toggle:hover{background:var(--c-bg);border-color:var(--c-text-secondary)}.verified-toggle .form-check{display:flex;align-items:center;margin:0;width:100%}.verified-toggle .form-check-input{width:44px;height:24px;margin:0 calc(var(--space-unit) * 1.5) 0 0;background:white;border:2px solid #2d2d2d;border-radius:12px;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;position:relative;transition:var(--transition-smooth)}.verified-toggle .form-check-input:checked{background:var(--color-bg-contrast);border-color:var(--color-bg-contrast)}.verified-toggle .form-check-input::before{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;background:var(--color-bg-contrast);border-radius:50%;transition:var(--transition-smooth)}.verified-toggle .form-check-input:checked::before{background:white;transform:translateX(20px)}.pdf-generator-section .form-check-input:checked,.pdf-generator-section .form-switch .form-check-input:checked{background-color:#2d2d2d!important;border-color:#2d2d2d!important;box-shadow:none!important}.verified-toggle .form-check-label{font-size:0.9rem;font-weight:500;color:var(--c-text-primary);cursor:pointer;margin:0;flex:1;-webkit-user-select:none;-moz-user-select:none;user-select:none}.verified-toggle .form-check-label::before,.verified-toggle .form-check-label::after{display:none}.required{color:#dc3545;font-weight:600}.form-actions{margin-top:calc(var(--space-unit) * 3)}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}@keyframes pulse-text{0%,100%{opacity:1}50%{opacity:0.7}}.content-selection-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:calc(var(--space-unit) * 2)}.format-options{display:flex;flex-direction:column;gap:var(--space-unit)}.settings-grid{display:grid;grid-template-columns:1fr 2fr 1fr;gap:calc(var(--space-unit) * 2);align-items:end}.limit-input-container{display:flex;align-items:center}.form-actions{margin-top:calc(var(--space-unit) * 3)}.password-strength-bar{width:100%;height:4px;background-color:var(--c-border);border-radius:2px;margin-bottom:calc(var(--space-unit) * 0.5);overflow:hidden}.password-strength-fill{height:100%;width:0%;border-radius:2px;transition:width 0.3s ease,background-color 0.3s ease}.password-strength-fill.weak{background-color:var(--color-danger)}.password-strength-fill.medium{background-color:var(--color-warning)}.password-strength-fill.strong{background-color:var(--color-success)}.password-strength-fill.very-strong{background-color:#006400}.password-strength-text{font-size:0.75rem;font-weight:500}.password-strength-text.weak{color:#dc3545}.password-strength-text.medium{color:var(--color-warning-contrast)}.password-strength-text.strong{color:var(--color-success)}.password-strength-text.very-strong{color:#004400}.admin-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:calc(var(--space-unit) * 3);width:100%;max-width:100%}.stat-icon{flex-shrink:0;width:48px;height:48px;background:linear-gradient(135deg,var(--gradient-avatar-start) 0%,var(--gradient-avatar-end) 100%);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--color-text-inverse);font-size:1.25rem}.stat-content{flex:1}.stat-content h3{font-size:0.875rem;font-weight:600;color:var(--color-text-tertiary);margin:0 0 calc(var(--space-unit) * 2) 0;text-transform:uppercase;letter-spacing:0.05em}.stat-values{display:flex;gap:calc(var(--space-unit) * 3);flex-wrap:wrap}.stat-item{display:flex;flex-direction:column;gap:calc(var(--space-unit) * 0.5)}.stat-item.stat-total{border-left:2px solid var(--color-border);padding-left:calc(var(--space-unit) * 2)}.stat-label{font-size:0.75rem;color:var(--color-text-soft);font-weight:500}.stat-number{font-size:1.5rem;font-weight:700;color:var(--color-text-primary);font-family:var(--f-mono)}.stat-total .stat-number{color:var(--color-accent-tertiary)}.folder-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:calc(var(--space-unit) * 2)}.folder-item-clickable{border:1px solid var(--color-border);border-radius:8px;padding:calc(var(--space-unit) * 2);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background 0.2s;background-color:var(--color-bg-card)}.folder-item-clickable:hover{background:var(--color-bg-hover)}.folder-item-clickable i{margin-right:calc(var(--space-unit) * 1);color:var(--color-accent-primary)}.folder-item-clickable span:first-of-type{font-weight:600}.folder-modal-item{padding:calc(var(--space-unit) * 2);border-bottom:1px solid var(--color-border);cursor:pointer;display:flex;justify-content:space-between;align-items:center}.folder-modal-item:hover{background:var(--color-bg-hover)}.folder-modal-item i{margin-right:calc(var(--space-unit) * 1)}.folder-modal-item.course-item i{color:var(--color-accent-primary)}.folder-modal-item.topic-item i{color:var(--color-accent-tertiary)}.folder-modal-item span:first-of-type{font-weight:600}.question-card{padding:calc(var(--space-unit) * 2);margin-bottom:calc(var(--space-unit) * 1.5);border:1px solid var(--color-border);border-radius:8px;background:var(--color-bg-card)}.question-card-row{display:flex;align-items:flex-start;gap:calc(var(--space-unit) * 2)}.question-text-preview{flex:1;display:flex;gap:calc(var(--space-unit) * 1);align-items:flex-start}.question-number{font-weight:600;color:var(--color-accent-primary);flex-shrink:0;min-width:2rem}.question-card-row .question-text-cell{flex:1;margin:0;font-size:0.875rem;line-height:1.6;color:var(--color-text)}.question-card-actions-inline{display:flex;gap:calc(var(--space-unit) * 1);align-items:center;flex-shrink:0}.question-card .question-text-cell{margin:0 0 calc(var(--space-unit) * 1.5);font-size:0.875rem;line-height:1.4}.weak-area-item{padding:calc(var(--space-unit) * 1.5) 0;border-bottom:1px solid var(--color-border)}.weak-area-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:calc(var(--space-unit) * 1)}.weak-area-header .topic-name{margin:0;font-weight:600;font-size:0.875rem}.weak-area-header .accuracy-score{font-size:0.875rem;font-weight:700;color:var(--color-danger)}.weak-area-progress{width:100%;height:6px;background:var(--color-border);border-radius:3px;overflow:hidden}.weak-area-progress-bar{height:100%;background:var(--color-danger);transition:width 0.3s}.empty-state-icon{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:200px;padding:calc(var(--space-unit) * 4) calc(var(--space-unit) * 2);color:var(--c-text-secondary)}.empty-state-icon i{font-size:3rem;color:var(--c-text-muted);margin-bottom:calc(var(--space-unit) * 2)}.empty-state-icon .empty-title{color:var(--c-text-muted);font-size:0.875rem}.empty-state-icon .empty-description{color:var(--c-text-muted);font-size:0.75rem;margin-top:calc(var(--space-unit) * 1)}#recent-sessions-list:has(.empty-state-icon:only-child),#weak-areas-list:has(.empty-state-icon:only-child),#created-quizzes-list:has(.empty-state-icon:only-child),#starred-questions-list:has(.empty-state-icon:only-child){display:flex;align-items:center;justify-content:center;min-height:200px}.grid-column-main.empty,.grid-column-secondary.empty{background:var(--c-bg-soft);border-color:var(--c-text-muted);opacity:0.7}#recent-sessions-list,#weak-areas-list,#created-quizzes-list,#starred-questions-list{min-height:250px}.badge.bg-primary{background-color:var(--color-accent-primary)!important;color:var(--color-accent-primary-text)!important}.text-success{color:var(--color-success)!important}.text-warning{color:var(--color-warning)!important}.text-danger{color:var(--color-danger)!important}.text-muted{color:var(--color-text-muted)!important}.badge-accent{background-color:var(--c-text-secondary,#707070);color:#ffffff;padding:0.25rem 0.5rem;border-radius:0.375rem;font-size:0.75rem;font-weight:600}.badge-accent-secondary{background-color:var(--color-bg-soft);color:var(--color-text-primary);border:1px solid var(--color-border);padding:0.25rem 0.5rem;border-radius:999px;font-size:0.75rem;font-weight:600}.mac-window{background:var(--color-bg-card,#ffffff);border:1px solid var(--color-border,#e5e5e5);border-radius:12px;overflow:hidden;box-shadow:0 14px 40px rgba(15,23,42,0.18);color:var(--color-text-primary,#111111)}.mac-window-header{background:var(--color-bg-contrast);color:var(--color-text-inverse-menu);border-bottom:1px solid rgba(0,0,0,0.15);padding:12px 16px;display:flex;align-items:center;gap:12px;position:relative;min-height:56px}.mac-window-controls{display:inline-flex;gap:8px;align-items:center;position:relative;z-index:2}.mac-window-title{flex:1;margin:0;font-size:14px;font-weight:600;color:var(--color-text-inverse-menu);letter-spacing:0.01em;text-overflow:ellipsis;overflow:hidden;white-space:nowrap}.mac-header-right{display:flex;align-items:center;gap:10px;margin-left:auto;z-index:2;flex-shrink:0}.mac-search-container-inline{position:relative;display:flex;align-items:center;min-width:200px}.mac-search-input-inline{width:100%;padding:8px 32px 8px 32px;border:1px solid rgba(255,255,255,0.2);border-radius:10px;font-size:13px;background-color:rgba(255,255,255,0.12);color:var(--color-text-inverse-menu);transition:all 0.2s ease}.mac-search-input-inline:focus{outline:none;border-color:var(--color-accent-tertiary,#687eff);box-shadow:0 0 0 3px rgba(104,126,255,0.18)}.window-search-icon{position:absolute;left:10px;color:var(--color-text-inverse-menu);opacity:0.6;font-size:12px;pointer-events:none}.window-search-clear{position:absolute;right:8px;width:18px;height:18px;border:none;background:rgba(255,255,255,0.16);border-radius:50%;color:var(--color-text-inverse-menu);font-size:9px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease}.window-search-clear:hover{background:rgba(255,255,255,0.25)}@media (max-width:1200px){.profile-grid{display:grid;grid-template-columns:1fr;grid-template-rows:auto auto auto auto;grid-template-areas:"identity" "main" "secondary" "pdf";gap:calc(var(--space-unit) * 4);padding:calc(var(--space-unit) * 3) calc(var(--space-unit) * 2);margin-bottom:6rem;max-width:100%}.grid-column-identity{position:static;height:auto;border:1px solid var(--c-border);border-radius:calc(var(--radius) * 1.5);padding:calc(var(--space-unit) * 4);background-color:var(--c-bg);box-shadow:0 2px 8px rgba(0,0,0,0.05)}.profile-identity-card{flex-direction:row;align-items:center;gap:calc(var(--space-unit) * 3)}.profile-info{flex-grow:1}.profile-name{font-size:1.25rem;margin-bottom:calc(var(--space-unit) * 0.5)}.profile-email{font-size:0.9rem;word-break:break-word}.profile-main-nav{margin:calc(var(--space-unit) * 2) 0 0;gap:calc(var(--space-unit) * 1);display:flex;flex-direction:column}.nav-button{padding:calc(var(--space-unit) * 2) calc(var(--space-unit) * 2);font-size:0.9rem;min-height:44px;text-align:left;justify-content:flex-start}.grid-column-main,.grid-column-secondary{padding:calc(var(--space-unit) * 4);box-shadow:0 2px 8px rgba(0,0,0,0.05)}.stats-container{grid-template-columns:1fr 1fr;gap:calc(var(--space-unit) * 2)}.content-selection-grid{grid-template-columns:1fr;gap:calc(var(--space-unit) * 3)}.settings-grid{grid-template-columns:1fr;gap:calc(var(--space-unit) * 3);align-items:start}.form-control{font-size:16px;min-height:44px;padding:calc(var(--space-unit) * 2)}}@media (max-width:1024px){.profile-grid.admin-grid{grid-template-columns:1fr;grid-template-areas:"identity" "main"}body.admin-view-active .grid-column-identity{position:fixed;left:-100%;z-index:-1}.admin-section{padding:calc(var(--space-unit) * 3)}.admin-stats-grid{grid-template-columns:1fr}}@media (max-width:768px){.modal-content{margin:calc(var(--space-unit) * 2);max-width:calc(100vw - calc(var(--space-unit) * 4))}.modal-content-small{width:calc(100vw - calc(var(--space-unit) * 4));max-width:none;margin:calc(var(--space-unit) * 2);padding:calc(var(--space-unit) * 4)}.modal-dialog{margin:0;height:100vh;display:flex;align-items:center;justify-content:center}.modal-header{padding:calc(var(--space-unit) * 3) calc(var(--space-unit) * 4) calc(var(--space-unit) * 2);margin-bottom:0}.modal-body{padding:calc(var(--space-unit) * 2) calc(var(--space-unit) * 4)}.modal-footer{padding:calc(var(--space-unit) * 2) calc(var(--space-unit) * 4) calc(var(--space-unit) * 3);gap:calc(var(--space-unit) * 2)}.pdf-generator-section{padding:calc(var(--space-unit) * 3)}.pdf-generator-card{padding:calc(var(--space-unit) * 1.5)}.pdf-generator-card .form-section{margin-bottom:calc(var(--space-unit) * 3);padding-bottom:calc(var(--space-unit) * 2)}.form-section-title{font-size:0.75rem}.form-label{font-size:0.85rem;margin-bottom:calc(var(--space-unit) * 1.5)}.form-control{font-size:16px;padding:calc(var(--space-unit) * 2);min-height:44px}select.form-control{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");background-position:right 12px center;background-repeat:no-repeat;background-size:16px 16px;padding-right:40px}.verified-toggle{padding:calc(var(--space-unit) * 2) calc(var(--space-unit) * 2.5);min-height:52px}.verified-toggle .form-check-input{width:48px;height:28px;margin-right:calc(var(--space-unit) * 2)}.verified-toggle .form-check-input::before{width:20px;height:20px;top:2px;left:2px}.verified-toggle .form-check-input:checked::before{transform:translateX(20px)}.accordion-button{padding:calc(var(--space-unit) * 3) calc(var(--space-unit) * 2);font-size:0.95rem;min-height:56px}.accordion-body{padding:calc(var(--space-unit) * 2)}.empty-state{padding:calc(var(--space-unit) * 4) calc(var(--space-unit) * 2)}.empty-title{font-size:0.95rem}.empty-description{font-size:0.85rem;line-height:1.5}.profile-pic-container{width:88px;height:88px}.change-pic-label{width:36px;height:36px;font-size:1rem}.form-label{font-size:0.9rem;font-weight:600;margin-bottom:calc(var(--space-unit) * 1.5)}.xp-bar{height:8px;margin-top:calc(var(--space-unit) * 1.5)}.stat-card dt{font-size:0.85rem;margin-bottom:calc(var(--space-unit) * 1)}:root{--space-unit:6px}.profile-grid{grid-template-columns:1fr;grid-template-rows:auto auto auto auto;grid-template-areas:"identity" "main" "secondary" "pdf";padding:calc(var(--space-unit) * 3) calc(var(--space-unit) * 2);gap:calc(var(--space-unit) * 4);margin-bottom:6rem;max-width:100%}.grid-column-identity{position:static;height:auto;border:1px solid var(--c-border);border-radius:var(--radius);padding:calc(var(--space-unit) * 4);background-color:var(--c-bg)}.profile-identity-card{flex-direction:row;align-items:center;gap:calc(var(--space-unit) * 3)}.profile-info{flex-grow:1}.profile-name{font-size:1.25rem;margin-bottom:calc(var(--space-unit) * 0.5)}.profile-email{font-size:0.9rem;word-break:break-word}.profile-main-nav{margin:calc(var(--space-unit) * 4) 0 0;gap:calc(var(--space-unit) * 1.5)}.nav-button{padding:calc(var(--space-unit) * 2) calc(var(--space-unit) * 2.5);font-size:0.95rem;min-height:44px}.grid-column-main,.grid-column-secondary{padding:calc(var(--space-unit) * 4)}.section-header{padding-bottom:calc(var(--space-unit) * 1.5);margin-bottom:calc(var(--space-unit) * 3)}.section-header h2{font-size:1.1rem}.header-action-button{padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);font-size:0.85rem;min-height:36px}.admin-section{padding:calc(var(--space-unit) * 2);border-radius:8px}.section-header{flex-direction:column;align-items:flex-start;gap:calc(var(--space-unit) * 2)}.section-controls{width:100%}.chart-period-tabs{width:100%}.period-tab,.quiz-period-tab{flex:1;padding:8px 12px;font-size:0.8125rem}.stat-card{flex-direction:column;padding:calc(var(--space-unit) * 2)}.stat-icon{width:40px;height:40px;font-size:1.125rem}.stat-values{flex-direction:column;gap:calc(var(--space-unit) * 2)}.stat-item.stat-total{border-left:none;border-top:2px solid var(--color-border);padding-left:0;padding-top:calc(var(--space-unit) * 2)}.admin-chart-container{height:300px}.admin-table{font-size:0.875rem}.admin-table th,.admin-table td{padding:calc(var(--space-unit) * 1.5)}}@media (max-width:768px) and (orientation:landscape){.profile-grid{padding:calc(var(--space-unit) * 2)}.grid-column-identity{padding:calc(var(--space-unit) * 3)}.profile-identity-card{flex-direction:row;gap:calc(var(--space-unit) * 2)}.profile-name{font-size:1.1rem}.nav-button{padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);min-height:40px}}@media (max-width:480px){.modal-content{margin:calc(var(--space-unit) * 1);max-width:calc(100vw - calc(var(--space-unit) * 2));border-radius:calc(var(--radius) * 1.5)}.modal-content-small{width:calc(100vw - calc(var(--space-unit) * 2));margin:calc(var(--space-unit) * 1);padding:calc(var(--space-unit) * 3)}#deleteConfirmModal .form-control{font-size:16px;padding:calc(var(--space-unit) * 2)}.pdf-generator-section{padding:calc(var(--space-unit) * 2)}.pdf-generator-card{padding:calc(var(--space-unit) * 1)}.form-actions{margin-top:calc(var(--space-unit) * 4)}body{font-size:15px;line-height:1.5}.profile-name{font-size:1.125rem;line-height:1.3}.profile-email{font-size:0.85rem;line-height:1.4}.form-field-group{margin-bottom:calc(var(--space-unit) * 3)}.badge{font-size:0.75rem;padding:calc(var(--space-unit) * 1) calc(var(--space-unit) * 1.5)}:root{--space-unit:5px}.profile-grid{padding:calc(var(--space-unit) * 2) calc(var(--space-unit) * 2);gap:calc(var(--space-unit) * 3)}.grid-column-identity,.grid-column-main,.grid-column-secondary{padding:calc(var(--space-unit) * 3)}.profile-identity-card{flex-direction:column;align-items:center;text-align:center;gap:calc(var(--space-unit) * 2);margin-left:0}.profile-name{font-size:1.125rem}.profile-email{font-size:0.85rem}.stats-container{grid-template-columns:1fr 1fr;gap:calc(var(--space-unit) * 2)}.stat-card dd{font-size:1.5rem}.streak-icon{font-size:1.125rem}.account-menu{width:100vw;left:-100vw;max-width:none}.account-menu.active{left:0}.account-menu-content{padding:calc(var(--space-unit) * 3)}.nav-button{font-size:0.9rem;padding:calc(var(--space-unit) * 2.5) calc(var(--space-unit) * 2)}.content-selection-grid{grid-template-columns:1fr;gap:calc(var(--space-unit) * 3)}.settings-grid{grid-template-columns:1fr;gap:calc(var(--space-unit) * 3);align-items:start}.language-selector-container{justify-content:center;gap:calc(var(--space-unit) * 2)}.limit-input-container{flex-direction:column;align-items:stretch;gap:calc(var(--space-unit) * 2)}#pdf-limit-input{min-width:auto;width:100%}.section-header h2{font-size:1.125rem}.stat-content h3{font-size:0.75rem}.stat-number{font-size:1.25rem}.stat-label{font-size:0.625rem}.admin-chart-container{height:250px}.user-info{flex-direction:column;align-items:flex-start;gap:calc(var(--space-unit) * 1)}.admin-table{font-size:0.8125rem}.admin-table th,.admin-table td{padding:calc(var(--space-unit) * 1)}}@media (max-width:360px){:root{--space-unit:4px}.profile-grid{padding:calc(var(--space-unit) * 2)}.grid-column-identity,.grid-column-main,.grid-column-secondary{padding:calc(var(--space-unit) * 2.5)}.profile-name{font-size:1rem}.profile-email{font-size:0.8rem}.nav-button{font-size:0.85rem;padding:calc(var(--space-unit) * 2) calc(var(--space-unit) * 1.5)}.section-header h2{font-size:1rem}.stat-card dd{font-size:1.25rem}.form-control{font-size:16px;padding:calc(var(--space-unit) * 2);min-height:44px}}.password-input-container{position:relative}.password-toggle{position:absolute;right:calc(var(--space-unit) * 2);top:50%;transform:translateY(-50%);background:none;border:none;color:var(--c-text-secondary);cursor:pointer;padding:var(--space-unit);font-size:16px;line-height:1;border-radius:var(--radius);transition:var(--transition-smooth);display:flex;align-items:center;justify-content:center;width:32px;height:32px}.password-toggle:hover{color:var(--c-text-primary);background-color:var(--c-bg-soft)}.password-toggle:focus{outline:2px solid var(--c-accent);outline-offset:2px}.theme-selector-container{display:grid;grid-template-columns:repeat(2,1fr);gap:calc(var(--space-unit) * 2);margin-top:var(--space-unit)}.theme-btn{display:flex;flex-direction:column;align-items:center;gap:calc(var(--space-unit) * 1.5);padding:calc(var(--space-unit) * 2);background-color:var(--color-bg-card);border:1px solid var(--c-border);border-radius:var(--radius);cursor:pointer;transition:var(--transition-smooth);color:var(--c-text-primary);font-weight:500;width:100%}.theme-btn:hover{background-color:var(--color-bg-hover);border-color:var(--c-text-secondary)}.theme-btn.active{border-color:var(--c-accent);background-color:var(--color-bg-hover);box-shadow:0 0 0 2px var(--c-accent)}.theme-preview{width:100%;height:80px;border-radius:4px;overflow:hidden;border:1px solid var(--c-border);display:flex;align-items:center;justify-content:center;background-color:var(--c-bg-soft);position:relative}.low-distraction-preview{background-color:#f9f9f9}.low-distraction-preview::before{content:"Low Distraction";font-size:0.75rem;color:#666;font-family:var(--f-sans)}.low-distraction-preview::after{content:"";position:absolute;bottom:10px;width:60%;height:6px;background-color:#e0e0e0;border-radius:3px}.brutalist-preview{background-color:#fff;border:2px solid #000;box-shadow:3px 3px 0 #000}.brutalist-preview::before{content:"Brutalist";font-size:0.8rem;font-weight:800;color:#000;font-family:"Bricolage Grotesque",sans-serif;text-transform:uppercase}.brutalist-preview::after{content:"";position:absolute;bottom:8px;width:50%;height:6px;background-color:#000;border:1px solid #000}