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li{padding-left:var(--spacing-lg);position:relative;color:var(--color-text-secondary);font-size:var(--font-size-sm);line-height:1.5}.tips-card li:before{content:"✓";position:absolute;left:0;color:var(--color-success);font-weight:700}.form-select{background-color:#fff;color:#000;width:200px;padding:2px}.form-select:focus{border-color:#ffc107;outline:none}.form-select option{background-color:#fff}.code-snippet{background-color:#fff;color:#000;width:100%;padding:1rem;border:1px solid rgb(198,198,198);font-family:Courier 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var(--transition-base);width:fit-content}.back-button:hover{background-color:var(--color-bg-tertiary);border-color:var(--color-primary);color:var(--color-text-primary)}.back-button svg{width:20px;height:20px}.tags-page{max-width:1400px;margin:0 auto;padding:var(--spacing-xl)}.tags-container{background-color:var(--color-bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-xl)}.tags-header{margin-bottom:var(--spacing-xl)}.tags-header h1{font-size:var(--font-size-3xl);font-weight:700;margin-bottom:var(--spacing-sm)}.tags-subtitle{font-size:var(--font-size-base);color:var(--color-text-secondary);line-height:1.6}.tags-filters{display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.search-wrapper{flex:1;max-width:400px;position:relative}.search-input{width:100%;padding:var(--spacing-md);border:2px solid var(--color-border-light);border-radius:var(--radius-md);font-size:var(--font-size-base)}.search-input:focus{outline:none;border-color:var(--color-primary)}.sort-buttons{display:flex;gap:var(--spacing-sm)}.sort-button{padding:var(--spacing-sm) var(--spacing-lg);background-color:transparent;border:2px solid var(--color-border-light);border-radius:var(--radius-md);font-size:var(--font-size-base);font-weight:600;color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-base)}.sort-button:hover{background-color:var(--color-bg-tertiary)}.sort-button--active{background-color:var(--color-primary);border-color:var(--color-primary);color:var(--color-text-primary)}.results-info{margin-bottom:var(--spacing-lg);font-size:var(--font-size-base);color:var(--color-text-secondary)}.tags-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg)}.tag-card{padding:var(--spacing-lg);background-color:var(--color-bg-secondary);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-base);position:relative}.tag-card:hover{border-color:var(--color-primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}.tag-new-badge{position:absolute;top:var(--spacing-sm);right:var(--spacing-sm);padding:2px var(--spacing-xs);background-color:var(--color-success);color:#fff;font-size:var(--font-size-xs);font-weight:600;border-radius:var(--radius-sm)}.tag-name{font-size:var(--font-size-lg);font-weight:600;color:var(--color-primary-dark);margin-bottom:var(--spacing-sm)}.tag-description{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.5;margin-bottom:var(--spacing-md);min-height:60px}.tag-stats{display:flex;flex-direction:column;gap:var(--spacing-sm)}.tag-stat{display:flex;align-items:baseline;gap:var(--spacing-xs)}.stat-value{font-size:var(--font-size-xl);font-weight:700;color:var(--color-text-primary)}.stat-label{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.tag-activity{display:flex;gap:var(--spacing-xs);font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.loading-state,.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--color-text-secondary)}@media(max-width:768px){.tags-filters{flex-direction:column;align-items:stretch}.search-wrapper{max-width:100%}.sort-buttons{justify-content:center}.tags-grid{grid-template-columns:1fr}}.categories-header{margin-bottom:2rem}.categories-header h1{font-size:2.5rem;margin-bottom:.5rem;color:#1a1a1a}.categories-header p{font-size:1rem;color:#555;margin:0}.categories-search{margin-bottom:2rem}.categories-search-input{width:100%;max-width:400px;padding:.75rem 1rem;font-size:1rem;border:1px solid #ddd;border-radius:15px;box-shadow:0 2px 4px #0000000d;transition:all .3s ease}.categories-search-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 4px 12px #ffc10726}.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem;margin-top:2rem}.category-card{padding:1.75rem;border:1px solid #e0e0e0;border-radius:15px;background:#fff;transition:all .3s ease;cursor:pointer;box-shadow:0 2px 4px #0000000d}.category-card:hover{border-color:var(--color-primary);box-shadow:0 4px 12px #ffc10726;transform:translateY(-2px)}.category-name{font-size:1.25rem;font-weight:600;margin:0 0 .75rem;color:#1a1a1a}.category-description{font-size:.95rem;color:#666;margin:0 0 1rem;line-height:1.4}.category-meta{display:flex;align-items:center;justify-content:space-between;padding-top:1rem;border-top:1px solid #f0f0f0}.category-count{font-size:.9rem;color:var(--color-primary);font-weight:500}.loading-message,.error-message,.no-results{text-align:center;padding:2rem;font-size:1rem;color:#666}.tag-detail-container{width:100%;max-width:750px;padding:2rem}.tag-detail-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:2rem;padding:1.5rem;background:linear-gradient(135deg,var(--color-primary-light) 0%,var(--color-primary) 100%);border-radius:8px}.tag-info{flex:1}.tag-title{font-size:2rem;margin:0 0 .5rem;color:#1a1a1a}.tag-description{font-size:1rem;color:#555;margin:0;line-height:1.5}.tag-stats{display:flex;gap:2rem;margin-left:2rem}.stat{display:flex;flex-direction:column;align-items:center;gap:.5rem}.stat-value{font-size:1.75rem;font-weight:700;color:var(--color-primary)}.stat-label{font-size:.85rem;color:#666;font-weight:500}.tag-questions{margin-top:2rem}.tag-questions h2{font-size:1.5rem;margin-bottom:1.5rem;color:#1a1a1a}.questions-list{display:flex;flex-direction:column;gap:1rem}.question-item{display:flex;justify-content:space-between;align-items:flex-start;padding:1.5rem;border:1px solid #e0e0e0;border-radius:8px;background:#fff;transition:all .3s ease}.question-item:hover{border-color:var(--color-primary);box-shadow:0 4px 12px #ffc10726;transform:translate(4px)}.question-content{flex:1;margin-right:1.5rem}.question-title{font-size:1.1rem;font-weight:600;margin:0 0 .5rem;color:var(--color-primary)}.question-preview{font-size:.95rem;color:#666;margin:0 0 1rem;line-height:1.5}.question-tags{display:flex;gap:.5rem;flex-wrap:wrap}.tag-badge{display:inline-block;padding:.25rem .75rem;background-color:var(--color-primary-light);color:var(--color-primary);border-radius:4px;font-size:.8rem;font-weight:500}.question-stats{display:flex;flex-direction:column;gap:1rem;flex-shrink:0;min-width:100px;text-align:center}.loading-message,.error-message,.no-questions{text-align:center;padding:2rem;font-size:1rem;color:#666}.error-message{color:#d32f2f}@media(max-width:768px){.tag-detail-header{flex-direction:column;gap:1rem}.tag-stats{margin-left:0}.question-item{flex-direction:column}.question-content{margin-right:0;margin-bottom:1rem}.question-stats{width:100%;min-width:unset}}.auth-container{display:flex;flex-direction:column;align-items:center;background:linear-gradient(135deg,#fef3c7,#fbbf24);height:100vh;justify-content:center;padding:20px;position:relative;overflow:hidden}.auth-container:before{content:"";position:absolute;top:-50%;right:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 1px);background-size:50px 50px;animation:backgroundMove 20s linear infinite}@keyframes backgroundMove{0%{transform:translate(0)}to{transform:translate(50px,50px)}}.toggle-buttons{display:flex;background:#fff3;border-radius:50px;padding:6px;margin-bottom:30px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 8px 32px #0000001a;position:relative;z-index:1}.toggle-buttons button{background:transparent;border:none;padding:12px 45px;cursor:pointer;color:#0009;font-weight:600;font-size:16px;transition:all .3s cubic-bezier(.4,0,.2,1);border-radius:50px;position:relative;z-index:1}.toggle-buttons button.active{background:#fecd09;color:#fff;box-shadow:0 4px 15px #fecd0966;transform:scale(1.02)}.toggle-buttons button:hover:not(.active){color:#000;transform:translateY(-2px)}.toggle-buttons button:focus{outline:none}.form-container{background:#fff;padding:3rem 2.5rem;border-radius:24px;box-shadow:0 20px 60px #0000004d;width:100%;max-width:420px;position:relative;z-index:1;animation:slideUp .5s ease-out;display:flex;flex-direction:column;align-items:center}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.auth-form{display:flex;flex-direction:column;width:100%;align-items:center}.auth-form input{margin-bottom:18px;padding:14px 18px;border:2px solid #e8e8e8;border-radius:12px;font-size:15px;transition:all .3s ease;background:#f8f9fa;width:100%;text-align:center}.auth-form input:focus{outline:none;border-color:#fecd09;background:#fff;box-shadow:0 0 0 4px #fecd0926;transform:translateY(-2px)}.auth-form input:disabled{background:#e9ecef;cursor:not-allowed;opacity:.6}.auth-form input::placeholder{color:#adb5bd}.auth-form button[type=submit]{padding:14px;background:#fecd09;border:none;color:#fff;border-radius:12px;cursor:pointer;font-weight:600;font-size:16px;transition:all .3s ease;margin-top:8px;box-shadow:0 4px 15px #fecd0966;width:100%}.auth-form button[type=submit]:hover{transform:translateY(-2px);box-shadow:0 6px 20px #fecd0980;background:#fdd835}.auth-form button[type=submit]:active{transform:translateY(0)}.auth-form button[type=button]{padding:12px;background:#fff;border:2px solid #e8e8e8;color:#fecd09;border-radius:12px;cursor:pointer;font-weight:600;font-size:14px;transition:all .3s ease;margin-top:10px;width:100%}.auth-form button[type=button]:hover{border-color:#fecd09;background:#fffbf0;transform:translateY(-2px)}.forgot-password{margin-top:20px;text-align:center}.forgot-password button{background:transparent!important;border:none!important;color:#d4a307;text-decoration:underline;cursor:pointer;font-size:14px;padding:8px!important;transition:all .2s ease}.forgot-password button:hover{color:#fecd09;transform:none!important}.back-to-login{margin-top:15px;text-align:center}.back-to-login button{background:transparent!important;border:none!important;color:#d4a307;text-decoration:underline;cursor:pointer;font-size:14px;padding:8px!important;transition:all .2s ease}.back-to-login button:hover{color:#fecd09;transform:none!important}.message{margin-top:20px;padding:14px 18px;border-radius:12px;font-size:14px;text-align:center;animation:fadeIn .3s ease;background:#fffbf0;color:#d4a307;border-left:4px solid #fecd09}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:480px){.form-container{padding:2rem 1.5rem;max-width:100%}.toggle-buttons button{padding:10px 30px;font-size:14px}}.question-detail-page{min-height:100vh;background-color:var(--color-bg-secondary);font-family:var(--font-family)}.question-detail-layout{display:grid;grid-template-columns:1fr 320px;gap:var(--spacing-xl);max-width:1400px;margin:0 auto;padding:var(--spacing-xl)}.question-main-container{min-width:0}.question-content-card{background:var(--color-bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.home-button-container{padding:var(--spacing-lg) var(--spacing-xl);border-bottom:1px solid var(--color-border-light)}.home-button{display:inline-flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);background-color:transparent;border:1px solid var(--color-border-light);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-base)}.home-button:hover{background-color:var(--color-primary);border-color:var(--color-primary);color:var(--color-bg-primary)}.question-header-section{display:flex;gap:var(--spacing-lg);padding:var(--spacing-xl);border-bottom:1px solid var(--color-border-light)}.question-vote-container{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);flex-shrink:0}.question-header-content{flex:1;min-width:0}.question-title-container{margin-bottom:var(--spacing-md)}.question-title{font-size:var(--font-size-3xl);font-weight:700;color:var(--color-text-primary);line-height:1.3;word-wrap:break-word}.question-meta-container{margin-bottom:var(--spacing-md)}.meta-info{display:flex;align-items:center;gap:var(--spacing-sm);flex-wrap:wrap;font-size:var(--font-size-sm);color:var(--color-text-secondary)}.meta-divider{color:var(--color-border-medium)}.question-tags-container{margin-bottom:var(--spacing-md)}.tags-list{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.status-indicators-container{display:flex;gap:var(--spacing-sm);flex-wrap:wrap}.question-body-section{padding:var(--spacing-xl);border-bottom:1px solid var(--color-border-light)}.question-content-container{line-height:1.7}.question-description{font-size:var(--font-size-base);color:var(--color-text-primary);margin-bottom:var(--spacing-lg)}.question-description img{max-width:100%;height:auto;border-radius:var(--radius-md);margin:var(--spacing-md) 0}.answer-content pre,.question-description pre{display:none}.code-blocks-container,.answer-code-blocks{display:flex;flex-direction:column;gap:var(--spacing-md)}.code-block-wrapper{background:var(--color-bg-code);border-radius:var(--radius-md);overflow:hidden;margin:var(--spacing-md) 0}.code-block-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) var(--spacing-md);background:var(--color-bg-tertiary);border-bottom:1px solid var(--color-border-light)}.code-language{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-weight:600}.code-copy-button{padding:var(--spacing-xs) var(--spacing-sm);background:transparent;border:1px solid var(--color-border-medium);border-radius:var(--radius-sm);font-size:var(--font-size-xs);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.code-copy-button:hover{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.code-content{padding:var(--spacing-md);margin:0;overflow-x:auto;font-family:Monaco,Consolas,monospace;font-size:var(--font-size-sm);line-height:1.5;color:#abb2bf}.question-actions-section{padding:var(--spacing-lg) var(--spacing-xl);border-bottom:1px solid var(--color-border-light)}.actions-container{display:flex;justify-content:space-between;align-items:center}.actions-stats{display:flex;gap:var(--spacing-lg)}.actions-buttons{display:flex;gap:var(--spacing-md);align-items:center}.owner-actions{display:flex;gap:var(--spacing-sm)}.answers-section{padding:var(--spacing-xl)}.answers-header-container{margin-bottom:var(--spacing-xl)}.answers-title{font-size:var(--font-size-2xl);font-weight:700;color:var(--color-text-primary)}.answers-list{display:flex;flex-direction:column;gap:var(--spacing-lg)}.answer-card{background:var(--color-bg-primary);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--spacing-xl)}.answer-card--accepted{border-color:var(--color-success);background:#f8fff8}.answer-accepted-badge{background:var(--color-success);color:#fff;padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:600;margin-bottom:var(--spacing-md);display:inline-block}.answer-content-container{display:flex;gap:var(--spacing-lg)}.answer-vote-container{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);flex-shrink:0}.answer-body-container{flex:1;min-width:0}.answer-content{font-size:var(--font-size-base);line-height:1.7;color:var(--color-text-primary);margin-bottom:var(--spacing-lg)}.answer-footer-container{display:flex;justify-content:space-between;align-items:center;padding-top:var(--spacing-md);border-top:1px solid var(--color-border-light)}.answer-meta{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.answer-actions{display:flex;gap:var(--spacing-sm)}.no-answers-container{text-align:center;padding:var(--spacing-xl);color:var(--color-text-secondary)}.no-answers-content{display:flex;flex-direction:column;gap:var(--spacing-md);align-items:center}.question-sidebar-container{display:flex;flex-direction:column;gap:var(--spacing-lg);position:sticky;top:var(--spacing-xl);height:fit-content}.sidebar-card{background:var(--color-bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.card-header{padding:var(--spacing-lg) var(--spacing-lg) 0}.card-title{font-size:var(--font-size-base);font-weight:600;color:var(--color-text-secondary);margin:0}.card-content{padding:var(--spacing-lg)}.author-profile{display:flex;gap:var(--spacing-md)}.author-avatar-container{flex-shrink:0}.author-avatar{width:64px;height:64px;border-radius:var(--radius-full);object-fit:cover}.author-avatar-placeholder{width:64px;height:64px;border-radius:var(--radius-full);background:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xl);font-weight:600}.author-details-container{flex:1;min-width:0}.author-name-container{display:flex;align-items:center;gap:var(--spacing-sm);flex-wrap:wrap;margin-bottom:var(--spacing-xs)}.author-name{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary);text-decoration:none}.author-name:hover{color:var(--color-primary);text-decoration:underline}.verification-badges{display:flex;gap:var(--spacing-xs)}.author-reputation-container{display:flex;align-items:center;gap:var(--spacing-xs);margin-bottom:var(--spacing-xs);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.author-join-date{font-size:var(--font-size-sm);color:var(--color-text-tertiary)}.stats-container{display:flex;flex-direction:column;gap:var(--spacing-sm)}.stat-row{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) 0;border-bottom:1px solid var(--color-border-light)}.stat-row:last-child{border-bottom:none}.stat-label{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.stat-value{color:var(--color-text-primary);font-weight:600;font-size:.95rem!important}.related-questions-container{color:var(--color-text-secondary);font-size:var(--font-size-sm);text-align:center;padding:var(--spacing-md) 0}.vote-button{width:28px;height:28px;border:1px solid var(--color-border-light);border-radius:var(--radius-md);background:transparent;color:var(--color-text-secondary);font-size:var(--font-size-sm);cursor:pointer;transition:all 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p,.diff-new p{margin:0;color:var(--color-text-primary)}.change-note{color:var(--color-text-secondary);font-size:var(--font-size-sm);font-style:italic;margin:0}.tags-diff{display:flex;flex-direction:column;gap:var(--spacing-sm)}.tag-list{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);margin-top:4px}.tag-badge{display:inline-block;padding:4px var(--spacing-sm);background-color:var(--color-primary-light);border:1px solid var(--color-primary);border-radius:var(--radius-sm);font-size:var(--font-size-xs);color:var(--color-text-primary)}.edit-reason{padding:var(--spacing-md);background-color:var(--color-bg-secondary);border-radius:var(--radius-md);border-left:4px solid var(--color-info)}.edit-reason h4{font-size:var(--font-size-base);font-weight:600;margin-bottom:var(--spacing-xs);color:var(--color-text-primary)}.edit-reason p{margin:0;color:var(--color-text-secondary);font-style:italic}.history-actions{margin-top:var(--spacing-xl);padding-top:var(--spacing-lg);border-top:1px solid 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300px!important;gap:2rem!important;max-width:1200px!important;margin:0 auto!important;padding:2rem!important;width:100%!important;box-sizing:border-box!important}.create-question-container{width:100%!important;max-width:100%!important;box-sizing:border-box!important;min-width:0!important}.form-input,.search-input,input[type=text],.quill,.ql-container,.ql-editor,.tag-search-wrapper{width:100%!important;max-width:100%!important;box-sizing:border-box!important}.form-actions{width:100%!important;box-sizing:border-box!important;padding:1rem 0!important}@media(max-width:1024px){.create-question-page{grid-template-columns:1fr!important}.create-question-sidebar{display:none!important}}.subtitle,.form-hint{display:none!important}:root{--color-primary: #FFC107;--color-primary-dark: #FFA000;--color-primary-light: #FFECB3;--color-bg-primary: #FFFFFF;--color-bg-secondary: #FAFAFA;--color-bg-tertiary: #F5F5F5;--color-bg-code: #282C34;--color-text-primary: #212121;--color-text-secondary: #757575;--color-text-tertiary: #9E9E9E;--color-border-light: #E0E0E0;--color-border-medium: #BDBDBD;--color-success: #4CAF50;--color-danger: #F44336;--color-info: #2196F3;--color-warning: #FF9800;--color-upvote: #4CAF50;--color-downvote: #F44336;--color-professor-badge: #2196F3;--color-ta-badge: #9C27B0;--color-answered: #4CAF50;--color-unanswered: #FF9800;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-family-mono: "Courier New", Courier, monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 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