body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--dark-bg);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{background-color:var(--dark-surface);border-radius:4px;color:var(--flame-orange);font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace;padding:.2em .4em}::-webkit-scrollbar{height:8px;width:8px}::-webkit-scrollbar-track{background:var(--dark-surface);border-radius:4px}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--flame-orange)}.welcome-container{align-items:center;display:flex;flex-direction:column;height:100vh;justify-content:center;overflow:hidden;position:relative}.language-pattern{align-content:center;display:grid;grid-template-columns:repeat(30,40px);grid-template-rows:repeat(30,40px);height:100%;justify-content:center;left:50%;position:absolute;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);width:100%;z-index:0}.language-cell{align-items:center;color:#3a3a3a;display:flex;font-size:1.1rem;font-weight:500;height:40px;justify-content:center;text-align:center;width:40px}.welcome-card{background-color:var(--dark-surface);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 4px 6px rgba(0,0,0,.1);max-width:600px;padding:1rem;position:relative;width:70%;z-index:1}.welcome-card h1{font-size:2rem;margin:0 0 1.5rem;text-align:center}.welcome-card h2{color:var(--text-primary);font-size:1.25rem;margin:0 0 1rem}.welcome-section{background-color:hsla(0,0%,100%,.03);border:1px solid var(--border-color);border-radius:6px;margin-bottom:2rem;padding:1.5rem;width:100%}.welcome-sections-container{display:flex;gap:1.5rem}@media (max-width:768px){.welcome-sections-container{grid-template-columns:1fr}}.test-account-button{background-color:var(--flame-orange);border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:1rem;margin-bottom:1rem;padding:.75rem;transition:background-color .2s;width:100%}.test-account-button:hover{background-color:var(--flame-orange-hover)}.error-message{background-color:rgba(244,67,54,.1);border:1px solid rgba(244,67,54,.3);color:#f44336;margin-bottom:1rem;text-align:center}.help-text{color:var(--text-secondary);font-size:.875rem;margin-top:.5rem}.help-text a{color:var(--flame-orange);text-decoration:none}.help-text a:hover{text-decoration:underline}.submit-button{background-color:var(--flame-orange);border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:1rem;margin-top:.5rem;padding:.75rem;transition:background-color .2s;width:100%}.submit-button:hover{background-color:var(--flame-orange-hover)}.submit-button:disabled{background-color:var(--dark-surface-hover);color:var(--text-secondary);cursor:not-allowed}.options-toggle{display:flex;justify-content:center;margin-bottom:1.5rem}.toggle-button{background-color:initial;border:1px solid var(--flame-orange);border-radius:4px;color:var(--flame-orange);cursor:pointer;font-size:.9rem;padding:.5rem 1rem;transition:all .2s;width:auto}.toggle-button:hover{background-color:rgba(255,107,53,.1)}.auth-container{align-items:center;display:flex;justify-content:center;min-height:100vh;padding:20px}.auth-container.welcome-container{padding:0}.auth-card{background:var(--dark-surface);background-color:var(--dark-surface);border:1px solid var(--border-color);border-radius:10px;box-shadow:0 4px 6px rgba(0,0,0,.2);max-width:400px;padding:2rem;position:relative;width:100%;z-index:1}.auth-card h2{color:var(--text-primary);margin-bottom:1.5rem;text-align:center}.auth-error{background-color:rgba(244,67,54,.1);border:1px solid rgba(244,67,54,.3);border-radius:4px;color:#f44336;padding:.75rem}.auth-error,.auth-success{margin-bottom:1rem;text-align:center}.auth-success{background-color:rgba(76,175,80,.1);border:1px solid rgba(76,175,80,.3);border-radius:4px;color:var(--text-primary);padding:1rem}.auth-success p{margin-bottom:.75rem}.auth-success button{margin-top:1rem}.form-group{margin-bottom:1rem}.form-group input{background-color:var(--dark-surface);padding:.75rem}.form-group input:focus{box-shadow:0 0 0 2px rgba(255,107,53,.1)}button{background-color:var(--flame-orange);border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:1rem;transition:background-color .2s;width:100%}button:hover{background-color:var(--flame-orange-hover)}button:disabled{background-color:var(--dark-surface-hover);color:var(--text-secondary);cursor:not-allowed}.auth-links{align-items:center;display:flex;justify-content:center;margin-top:1rem;text-align:center}.auth-links a{color:var(--flame-orange);margin:0 .5rem;text-decoration:none}.auth-links a:hover{text-decoration:underline}.legal-requirements{border-top:1px solid var(--border-color);margin:1.5rem 0;padding-top:.5rem}.checkbox-group{margin-bottom:.75rem}.checkbox-container{color:var(--text-primary);cursor:pointer;display:flex;font-size:.9rem;line-height:1.4;padding-left:1.75rem;position:relative;-webkit-user-select:none;user-select:none}.checkbox-container input{cursor:pointer;height:0;opacity:0;position:absolute;width:0}.checkmark{background-color:initial;border:2px solid var(--border-color);border-radius:3px;height:1rem;left:0;position:absolute;top:.2rem;transition:all .2s;width:1rem}.checkbox-container:hover input~.checkmark{border-color:var(--flame-orange)}.checkbox-container input:checked~.checkmark{background-color:var(--flame-orange);border-color:var(--flame-orange)}.checkmark:after{content:"";display:none;position:absolute}.checkbox-container input:checked~.checkmark:after{display:block}.checkbox-container .checkmark:after{border:solid #fff;border-width:0 2px 2px 0;height:8px;left:4px;top:0;-webkit-transform:rotate(45deg);transform:rotate(45deg);width:4px}.checkbox-container a{color:var(--flame-orange);display:inline-block;text-decoration:none}.checkbox-container a:hover{text-decoration:underline}.deck-info small{font-size:.9em}.deck-item-actions{gap:8px;opacity:.6;transition:opacity .2s ease}.deck-item:hover .deck-item-actions{opacity:1}.icon-btn{align-items:center;background:transparent;border:none;border-radius:6px;color:var(--text-primary);cursor:pointer;height:32px;justify-content:center;padding:6px;transition:all .2s ease;width:32px}.icon-btn:hover{background:var(--dark-surface-hover);color:var(--flame-orange)}.learning-count{color:#e11d48}.new-count{color:#3b82f6}.review-count{color:#22c55e}.deck-management{box-sizing:border-box;height:100%;margin:0 auto;padding:0 1rem;width:100%}.deck-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1rem}.deck-management h2{color:var(--text-primary);margin:0}.deck-list{gap:12px}.action-btn{align-items:center;background:var(--dark-surface);border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);cursor:pointer;display:flex;height:36px;justify-content:center;min-width:36px;padding:6px;transition:all .2s ease;width:36px}.action-btn:hover{background:var(--dark-surface-hover);border-color:var(--flame-orange);color:var(--flame-orange)}.action-btn svg{stroke:currentColor;fill:none;height:20px;width:20px}.deck-item{background:var(--dark-surface);border-radius:6px;padding:15px}.deck-item:hover{box-shadow:0 4px 8px rgba(0,0,0,.2)}.deck-item.selected,.deck-item:hover{background:var(--dark-surface-hover)}.deck-info h3{margin:0 0 5px}.deck-info p{color:var(--text-secondary);font-size:.9em;margin:0}.modal-overlay{align-items:center;background-color:rgba(0,0,0,.5);bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.modal-content{background-color:var(--dark-surface);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 4px 6px rgba(0,0,0,.1);max-width:400px;padding:1rem;width:80%}.modal-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1rem}.modal-header h3{color:var(--text-primary);font-size:1.2rem;margin:0}.close-btn{align-items:center;background:transparent;border:none;border-radius:4px;color:var(--text-secondary);cursor:pointer;justify-content:center;padding:4px;width:43px}.close-btn:hover{background:var(--dark-surface-hover);color:var(--flame-orange)}.form-group label{font-size:.9rem;margin-bottom:8px}.form-group input{background:var(--dark-bg);border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);font-size:1rem;padding:8px 12px}.form-group input:focus{border-color:var(--flame-orange);outline:none}.modal-actions{display:flex;gap:12px;justify-content:flex-end}.modal-actions button{border-radius:4px;cursor:pointer;font-size:.9rem;padding:8px 16px;transition:all .2s ease}.cancel-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-primary)}.cancel-btn:hover{background:var(--dark-surface-hover);border-color:var(--flame-orange)}.submit-btn{background:var(--flame-orange);border:none;color:#fff}.submit-btn:hover{background:var(--flame-orange-hover)}.submit-btn:disabled{background:var(--dark-surface-hover);color:var(--text-secondary);cursor:not-allowed}.empty-deck-state{height:100px}.create-first-deck-btn,.empty-deck-state{align-items:center;display:flex;justify-content:center}.create-first-deck-btn{background:var(--dark-surface);border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);cursor:pointer;gap:.5rem;height:75px;transition:all .2s ease;width:100%}.create-first-deck-btn:hover{background:var(--dark-surface-hover);border-color:var(--flame-orange);color:var(--flame-orange)}.card-form{margin:0 auto}.card-preview{margin-top:2rem}.flashcard{padding:1rem}.form-group label{color:var(--text-primary);display:block;font-weight:500;margin-bottom:.5rem}.form-group textarea{background:var(--dark-surface-hover);border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);font-size:1rem;line-height:1.5;max-height:300px;overflow-y:auto;padding:.75rem;resize:vertical;transition:all .2s ease}.form-group textarea:focus{border-color:var(--flame-orange);box-shadow:0 0 0 2px rgba(255,107,53,.2);outline:none}.form-group select{-webkit-appearance:none;appearance:none;background:var(--dark-surface-hover);background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-position:right .75rem center;background-repeat:no-repeat;background-size:1em;border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);font-size:1rem;padding:.75rem 2.5rem .75rem .75rem;transition:all .2s ease;width:100%}.form-group select option{background:var(--dark-surface);color:var(--text-primary);padding:.5rem}.language-option{align-items:center;display:flex;gap:.5rem}.language-option img{border-radius:2px;height:1rem;object-fit:cover;width:1.5rem}.card-form button[type=submit]{background:var(--flame-orange);border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:1em;padding:10px 20px;transition:all .2s ease}.card-form button[type=submit]:hover{background:var(--flame-orange-hover);-webkit-transform:translateY(-1px);transform:translateY(-1px)}.card-form button[type=submit]:disabled{background:var(--dark-surface-hover);color:var(--text-secondary);cursor:not-allowed;-webkit-transform:none;transform:none}.progress{background:var(--dark-surface-hover);border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);margin:20px 0;padding:15px;text-align:center}.add-to-deck-btn{background:var(--flame-orange);border-radius:8px;display:block;font-size:1em;margin:1rem auto;max-width:200px;transition:all .2s ease}.add-to-deck-btn:hover{background:var(--flame-orange-hover)}.add-to-deck-btn:disabled{background:var(--dark-surface-hover);color:var(--text-secondary);opacity:.7}.text-view-container{display:flex;gap:2rem;justify-content:center;margin:2rem 0}.text-view{background-color:#fff;border:1px solid #ddd;border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,.1);flex:1 1;max-width:300px;padding:1rem}.text-view h3{color:#333;margin:0 0 1rem}.text-view p{line-height:1.5;margin:0 0 1rem}.card-modal-overlay{align-items:center;-webkit-animation:modalFadeIn .2s ease-out;animation:modalFadeIn .2s ease-out;background-color:rgba(0,0,0,.75);display:flex;height:100%;justify-content:center;left:0;position:fixed;top:0;width:100%;z-index:1000}.card-modal-content{-webkit-animation:modalSlideIn .3s ease-out;animation:modalSlideIn .3s ease-out;background-color:var(--dark-surface);border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.3);display:flex;flex-direction:column;max-height:90vh;max-width:700px;overflow-y:auto;width:90%}.card-modal-header{align-items:center;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;padding:16px}.card-modal-header h3{color:var(--text-primary);font-size:1.25rem;font-weight:600;margin:0}.card-modal-close-btn{align-items:center;background:none;border:none;border-radius:50%;color:var(--text-secondary);cursor:pointer;display:flex;height:32px;justify-content:center;padding:0;transition:color .2s ease;width:32px}.card-modal-close-btn:hover{background-color:var(--dark-surface-hover);color:var(--text-primary)}.card-modal-body{display:flex;flex-direction:column;overflow-y:auto;padding:16px}.card-modal-footer{border-top:1px solid var(--border-color);display:flex;gap:10px;justify-content:center;padding:16px}.loading-content{align-items:center;display:flex;flex-direction:column;gap:1rem;justify-content:center;min-height:200px;padding:2rem}.loading-spinner{color:var(--flame-orange)}.loading-content p{color:var(--text-secondary);font-size:1rem;margin:0}.error-message{background-color:rgba(231,76,60,.1);color:#e74c3c;font-size:.875rem;margin-bottom:12px;padding:8px}.flashcard-container{flex-direction:row;margin:10px 0}.card-side{border:1px solid var(--border-color);border-radius:8px;margin:5px;min-width:200px;padding:16px}.card-side h3{color:var(--text-secondary);font-size:1rem;margin-bottom:12px;margin-top:0;text-align:center}.card-sides-arrow{align-items:center;display:flex;justify-content:center;padding:0 5px;z-index:1}.bidirectional-arrow{color:var(--flame-orange);height:24px;width:24px}.bidirectional-hint{margin-bottom:10px;text-align:center}.bidirectional-hint small{color:var(--text-secondary);font-style:italic}.play-audio-btn{align-items:center;background-color:initial;border:1px solid var(--border-color);color:var(--text-primary);display:flex;font-size:.875rem;gap:8px;justify-content:center;padding:8px 12px;transition:background-color .2s ease}.play-audio-btn.loading{background-color:var(--dark-surface-hover);color:var(--text-secondary);min-width:100px}.play-audio-btn.loading .spin{color:var(--flame-orange)}.play-audio-btn:hover{background-color:var(--dark-surface-hover)}.play-audio-btn:disabled{cursor:not-allowed;opacity:.5}.add-to-deck-btn{background-color:var(--flame-orange);border:none;border-radius:6px;color:#fff;cursor:pointer;font-size:1rem;font-weight:500;padding:12px 24px;transition:background-color .2s ease,-webkit-transform .1s ease;transition:background-color .2s ease,transform .1s ease;transition:background-color .2s ease,transform .1s ease,-webkit-transform .1s ease}.add-to-deck-btn:hover{background-color:var(--flame-orange-hover);-webkit-transform:translateY(-1px);transform:translateY(-1px)}.add-to-deck-btn:disabled{cursor:not-allowed;opacity:.5;-webkit-transform:none;transform:none}.add-without-audio{background-color:var(--dark-surface-hover);color:var(--text-primary)}.card-content{display:flex;flex-direction:column;width:100%}.card-actions{flex-wrap:wrap;gap:8px;margin-top:8px}.card-action-btn,.card-actions{display:flex;justify-content:center}.card-action-btn{align-items:center;background-color:initial;border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);cursor:pointer;height:32px;transition:background-color .2s ease,color .2s ease;width:32px}.card-action-btn:hover{background-color:var(--dark-surface-hover)}.card-action-btn:disabled{cursor:not-allowed;opacity:.5}.edit-text-container{display:flex;flex-direction:column;gap:8px;margin-bottom:8px}.edit-text-area{border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);min-height:60px;padding:8px;resize:vertical}.edit-text-area,.loading-text-area{background-color:var(--dark-surface-hover)}.loading-text-area{align-items:center;border-radius:6px;color:var(--flame-orange);display:flex;height:80px;justify-content:center;margin-bottom:12px}.spin{-webkit-animation:spin 1s linear infinite;animation:spin 1s linear infinite}.ai-disclosure{margin-top:1rem}@media (max-width:600px){.flashcard-container{flex-direction:column}.card-side{min-width:auto}.card-sides-arrow{padding:10px 0;-webkit-transform:rotate(90deg);transform:rotate(90deg)}.card-modal-content{max-height:97%;width:95%}.card-modal-header{padding:12px 16px}.card-modal-body{padding:12px}}@-webkit-keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}@-webkit-keyframes modalSlideIn{0%{opacity:0;-webkit-transform:translateY(-20px);transform:translateY(-20px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes modalSlideIn{0%{opacity:0;-webkit-transform:translateY(-20px);transform:translateY(-20px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}.deck-cards{max-width:1200px;padding:1rem}.deck-cards-header{align-items:center;display:flex;flex-direction:column;text-align:center}.deck-cards-header h1{color:var(--text-primary);font-size:1.75rem;margin:.5rem 0}.language-info{color:var(--text-secondary);font-size:.9rem;margin:.5rem 0}.deck-cards-header .back-btn{background:transparent;border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);cursor:pointer;font-size:.9rem;left:0;padding:.5rem 1rem;position:absolute;top:1rem;transition:all .2s ease}.deck-cards-header .back-btn:hover{background:var(--dark-surface-hover);-webkit-transform:translateX(-2px);transform:translateX(-2px)}.deck-content{gap:2rem}.deck-actions{justify-content:flex-end}.add-card-btn{align-items:center;background-color:var(--flame-orange);border:none;border-radius:6px;color:#fff;cursor:pointer;display:flex;font-weight:500;gap:.5rem;padding:.75rem 1.25rem;transition:all .2s ease}.add-card-btn:hover{background-color:var(--flame-orange-hover);-webkit-transform:translateY(-2px);transform:translateY(-2px)}.deck-cards-list h3{border-bottom:1px solid var(--border-color);color:var(--text-primary);font-size:1.1rem;margin:0 0 1rem;padding-bottom:.75rem}.empty-deck{align-items:center;background:var(--dark-bg);border-radius:8px;color:var(--text-secondary);display:flex;flex-direction:column;gap:1rem;padding:2rem;text-align:center}.start-adding-btn{background-color:var(--flame-orange);border:none;border-radius:6px;color:#fff;cursor:pointer;font-weight:500;padding:.75rem 1.25rem;transition:all .2s ease}.start-adding-btn:hover{background-color:var(--flame-orange-hover);-webkit-transform:translateY(-2px);transform:translateY(-2px)}.card-list{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.card-item{background:var(--dark-surface-hover);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,.05);padding:1rem;transition:all .2s ease}.card-item:hover{border-color:var(--flame-orange);box-shadow:0 4px 8px rgba(0,0,0,.1);-webkit-transform:translateY(-3px);transform:translateY(-3px)}.card-item span{color:var(--text-primary);font-size:1rem;font-weight:600}.card-item small,.card-item span{display:block;margin-bottom:.5rem}.card-item small{color:var(--text-secondary);font-size:.9rem;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.card-stats{background:var(--dark-bg);border-radius:6px;color:var(--text-secondary);font-size:.85rem;margin-top:.75rem;padding:.75rem}@media (max-width:768px){.card-list{grid-template-columns:1fr}.deck-actions{justify-content:center}}.audio-canvas{border-radius:50%;display:block;-webkit-filter:drop-shadow(0 0 2px hsla(0,0%,100%,.1));filter:drop-shadow(0 0 2px rgba(255,255,255,.1));height:100%;left:0;pointer-events:none;position:absolute;top:0;width:100%;z-index:5}.audio-canvas.rectangle{border-radius:8px;box-shadow:0 4px 6px rgba(0,0,0,.1);height:60px;position:relative}.audio-visualizers-container{display:flex;gap:20px;justify-content:space-between;margin-left:auto;margin-right:auto;margin-top:20px;max-width:600px}.visualizer-wrapper{background-color:rgba(30,30,30,.3);border:1px solid #333;border:1px solid var(--border-color,#333);border-radius:8px;flex:1 1;padding:10px}.visualizer-label{color:#999;color:var(--text-secondary,#999);font-size:12px;margin-bottom:5px;text-align:center}.visualizer{height:100%;width:100%}.visualization-container{display:flex;flex-direction:column;gap:10px;margin-bottom:10px;width:100%}.audio-button.mic-button.loading,.audio-button.play-button.loading{cursor:not-allowed;opacity:.7}.audio-button:disabled{cursor:not-allowed;opacity:.6}.review-mode{width:100%}.mode-header{border-bottom:1px solid var(--border-color);flex-shrink:0;justify-content:space-between;padding:5px 0;width:100%}.mode-header h2{flex:1 1;text-align:center}.back-btn{background:none;border:1px solid var(--flame-orange);color:var(--flame-orange);font-size:1em;padding:4px 8px}.back-btn:hover{background:var(--flame-orange);color:var(--text-primary)}.review-card{background:var(--dark-surface);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,.2);padding:15px}.card-progress{color:var(--text-secondary);flex-shrink:0;padding:10px 0;text-align:center}.review-controls{flex-shrink:0}.attempts-counter{text-align:center}.evaluation-result{background:var(--dark-surface);border-radius:4px;text-align:center}.evaluation-result.correct{background:rgba(40,167,69,.1);color:#4caf50}.evaluation-result.incorrect{background:rgba(220,53,69,.1);color:#f44336}.evaluation-result.quit{background:rgba(255,193,7,.1);color:#ffc107}.result-icon{margin-bottom:5px}.review-complete{background:var(--dark-surface);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,.2);padding:40px;text-align:center}.review-complete h3{color:#4caf50;margin-bottom:15px}.review-complete p{color:var(--text-secondary);margin-bottom:20px}.visualizer.user{--visualizer-color:var(--flame-orange,#ff6b35)}.visualizer.ai{--visualizer-color:#4caf50}.loading-spinner{-webkit-animation:spin 1s linear infinite;animation:spin 1s linear infinite;border:3px solid hsla(0,0%,100%,.3);border-radius:50%;border-top-color:#fff;height:20px;left:50%;position:absolute;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);width:20px;z-index:11}.evaluation-loading{align-items:center;-webkit-animation:pulse 1.5s infinite;animation:pulse 1.5s infinite;color:#6b7280;display:flex;font-style:italic;height:40px;justify-content:center}@-webkit-keyframes spin{to{-webkit-transform:translate(-50%,-50%) rotate(1turn);transform:translate(-50%,-50%) rotate(1turn)}}@keyframes spin{to{-webkit-transform:translate(-50%,-50%) rotate(1turn);transform:translate(-50%,-50%) rotate(1turn)}}.flashcard-container{background-color:var(--dark-surface);border-radius:12px;box-shadow:0 4px 10px rgba(0,0,0,.3);display:flex;flex:1 1;flex-direction:column;max-width:600px;min-height:0;overflow:hidden;position:relative;width:100%}.flashcard-bottom,.flashcard-top{align-items:center;display:flex;flex:1 1;justify-content:center;min-height:0;overflow-y:auto;padding:20px;position:relative}.flashcard-top{border-bottom:2px dashed var(--border-color)}.flashcard-text{color:var(--text-primary);font-size:1.5rem;max-width:90%;text-align:center}.flashcard-text.front{color:#3b82f6;color:var(--blue,#3b82f6)}.flashcard-text.back{color:#ff6b35;color:var(--flame-orange,#ff6b35);font-weight:500}.bottom-controls-container{align-items:flex-start;display:flex;flex-shrink:0;justify-content:space-evenly;padding:1rem 0;width:100%;z-index:10}.button-container{align-items:center;display:flex;flex-direction:column;height:80px;position:relative;width:100px}.bottom-controls-container .hint-button{margin-bottom:8px;position:relative;top:0;z-index:2}.front-visualizer-container,.hint-visualizer-container,.mic-visualizer-container{height:120px;pointer-events:none;position:absolute;top:-30px;width:120px;z-index:0}.hint-button{background:transparent;border:none;border-radius:50%;cursor:pointer;height:60px;outline:none;padding:0;transition:all .2s ease;width:60px;z-index:10}.button-inner,.hint-button{align-items:center;display:flex;justify-content:center;position:relative}.button-inner{background:radial-gradient(circle at 30% 30%,#888,#333);border-radius:50%;box-shadow:inset 0 5px 10px hsla(0,0%,100%,.2),inset 0 -5px 10px rgba(0,0,0,.5),0 0 0 1px hsla(0,0%,100%,.1),0 8px 20px rgba(0,0,0,.5);height:100%;overflow:hidden;width:100%}.button-icon,.button-icon-controls{color:#ddd;-webkit-filter:drop-shadow(0 2px 3px rgba(0,0,0,.5));filter:drop-shadow(0 2px 3px rgba(0,0,0,.5));z-index:3}.button-icon-controls{width:30px}.button-label{bottom:0;color:var(--text-secondary);font-size:14px;position:absolute;text-align:center;width:100%}.hint-button.recording .button-inner{-webkit-animation:pulse 1.5s infinite;animation:pulse 1.5s infinite;background:radial-gradient(circle at 30% 30%,#ff6f45,#ff4f21)}.transition-timer-container{align-items:center;bottom:0;display:flex;justify-content:center;left:0;position:absolute;right:0;top:0;z-index:1000}.transition-timer{align-items:center;background-color:rgba(0,0,0,.4);border-radius:30px;color:#fff;display:flex;font-size:14px;gap:15px;height:30px;padding:8px 16px}.transition-controls{display:flex;gap:10px}.transition-button{align-items:center;background:none;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;font-size:16px;height:30px;justify-content:center;padding:0;transition:background-color .2s ease;width:30px}.transition-button.skip{background-color:rgba(0,128,0,.5)}.transition-button.cancel{background-color:rgba(255,0,0,.5)}.transition-button:hover{background-color:hsla(0,0%,100%,.2)}.transition-button.skip:hover{background-color:rgba(0,128,0,.8)}.transition-button.cancel:hover{background-color:rgba(255,0,0,.8)}@media (max-height:600px){.card-progress{font-size:.8rem;padding:2px 0}.button-label{font-size:12px}.flashcard-text{font-size:1.2rem}}@media (max-height:700px){.mode-header h2{font-size:1.2rem}}.app-content{overflow:hidden!important}.ai-disclosure{color:#666;display:block;font-size:.75rem;font-style:italic;margin-top:.25rem;text-align:center}.voice-mode{flex-direction:column;gap:20px;padding:40px}.voice-interface,.voice-mode{align-items:center;display:flex;justify-content:center;position:relative}.voice-interface{background:transparent;border-radius:80px;height:160px;width:160px;z-index:1}.mic-button{align-items:center;background:var(--dark-surface);border:none;border:1px solid var(--border-color);border-radius:50%;box-shadow:0 2px 8px rgba(0,0,0,.2);cursor:pointer;display:flex;height:100%;justify-content:center;padding:0;position:relative;transition:all .3s ease;width:100%;z-index:3}.mic-button:not(.disabled):hover{background:hsla(0,0%,100%,.1)}.mic-button.disabled{cursor:not-allowed;opacity:.5}.mic-button.recording{-webkit-animation:pulse 2s infinite;animation:pulse 2s infinite;background:hsla(0,0%,100%,.1)}.mic-button.speaking{-webkit-animation:speak-pulse 1s ease-in-out infinite;animation:speak-pulse 1s ease-in-out infinite}.large-mic-icon{color:#888;height:64px;transition:all .3s ease;width:64px}.recording .large-mic-icon{color:#fff;-webkit-transform:scale(1.1);transform:scale(1.1)}.speaking .large-mic-icon{-webkit-animation:speak-scale 1s ease-in-out infinite;animation:speak-scale 1s ease-in-out infinite;color:var(--flame-orange)}.mic-button:not(.disabled):hover .large-mic-icon{color:#aaa}.disabled .large-mic-icon,.feedback-message{color:var(--text-color)}.feedback-message{font-size:1.1rem;min-height:1.5em;text-align:center}.mic-button.success{-webkit-animation:success-pulse 2s ease;animation:success-pulse 2s ease}.mic-button.error{-webkit-animation:error-pulse 2s ease;animation:error-pulse 2s ease}.skip-indicator{color:var(--flame-orange);font-size:64px;left:50%;opacity:0;pointer-events:none;position:absolute;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%)}.skip-indicator.show{-webkit-animation:fade-out .5s ease forwards;animation:fade-out .5s ease forwards}.voice-mode .visualization-container{align-items:center;display:flex;gap:20px;height:160px;justify-content:center;left:50%;position:absolute;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);width:500px;z-index:2}.voice-mode .visualizer{background:rgba(0,0,0,.3);border:1px solid var(--border-color);border-radius:80px;box-shadow:0 2px 8px rgba(0,0,0,.2);flex:1 1;height:100%;overflow:hidden}.voice-mode .visualizer.user{background:rgba(100,149,237,.1)}.voice-mode .visualizer.ai{background:rgba(255,107,53,.1)}.voice-mode .audio-canvas{height:100%;opacity:1;width:100%}@-webkit-keyframes speak-pulse{0%{box-shadow:0 0 0 0 rgba(var(--flame-orange-rgb),.2)}50%{box-shadow:0 0 0 10px rgba(var(--flame-orange-rgb),.1)}to{box-shadow:0 0 0 0 rgba(var(--flame-orange-rgb),.2)}}@keyframes speak-pulse{0%{box-shadow:0 0 0 0 rgba(var(--flame-orange-rgb),.2)}50%{box-shadow:0 0 0 10px rgba(var(--flame-orange-rgb),.1)}to{box-shadow:0 0 0 0 rgba(var(--flame-orange-rgb),.2)}}@-webkit-keyframes speak-scale{0%{-webkit-transform:scale(1);transform:scale(1)}50%{-webkit-transform:scale(1.05);transform:scale(1.05)}to{-webkit-transform:scale(1);transform:scale(1)}}@keyframes speak-scale{0%{-webkit-transform:scale(1);transform:scale(1)}50%{-webkit-transform:scale(1.05);transform:scale(1.05)}to{-webkit-transform:scale(1);transform:scale(1)}}@-webkit-keyframes success-pulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.6)}30%{box-shadow:0 0 0 20px rgba(34,197,94,.4)}60%{box-shadow:0 0 0 20px rgba(34,197,94,.2)}to{box-shadow:0 0 0 0 rgba(34,197,94,0)}}@keyframes success-pulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.6)}30%{box-shadow:0 0 0 20px rgba(34,197,94,.4)}60%{box-shadow:0 0 0 20px rgba(34,197,94,.2)}to{box-shadow:0 0 0 0 rgba(34,197,94,0)}}@-webkit-keyframes error-pulse{0%{box-shadow:0 0 0 0 rgba(239,68,68,.6)}30%{box-shadow:0 0 0 20px rgba(239,68,68,.4)}60%{box-shadow:0 0 0 20px rgba(239,68,68,.2)}to{box-shadow:0 0 0 0 rgba(239,68,68,0)}}@keyframes error-pulse{0%{box-shadow:0 0 0 0 rgba(239,68,68,.6)}30%{box-shadow:0 0 0 20px rgba(239,68,68,.4)}60%{box-shadow:0 0 0 20px rgba(239,68,68,.2)}to{box-shadow:0 0 0 0 rgba(239,68,68,0)}}@-webkit-keyframes fade-out{0%{opacity:1;-webkit-transform:translate(-50%,-50%) scale(1);transform:translate(-50%,-50%) scale(1)}to{opacity:0;-webkit-transform:translate(-50%,-50%) scale(1.5);transform:translate(-50%,-50%) scale(1.5)}}@keyframes fade-out{0%{opacity:1;-webkit-transform:translate(-50%,-50%) scale(1);transform:translate(-50%,-50%) scale(1)}to{opacity:0;-webkit-transform:translate(-50%,-50%) scale(1.5);transform:translate(-50%,-50%) scale(1.5)}}.settings-page{background-color:var(--dark-surface);margin:0 auto;max-width:800px;min-height:100vh;padding:20px}.settings-header{align-items:center;display:flex;gap:20px;margin-bottom:30px}.settings-header h2{color:var(--text-primary);font-size:1.5rem;margin:0}.back-button{background:none;border:none;border-radius:4px;color:var(--text-primary);cursor:pointer;font-size:1rem;padding:8px 16px;transition:background-color .2s ease}.back-button:hover{background-color:var(--dark-surface-hover)}.settings-content{background-color:var(--dark-surface);border-radius:8px;padding:24px}.preferences-section{display:flex;flex-direction:column;gap:20px}.preference-item{display:flex;flex-direction:column;gap:8px}.preference-item label{color:var(--text-primary);font-size:.9rem;font-weight:500}.preference-item input[type=number],.preference-item select{background-color:var(--dark-surface-hover);border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);font-size:1rem;max-width:300px;padding:8px 12px;width:100%}.preference-item.checkbox{align-items:center;flex-direction:row;justify-content:space-between}.preference-item.checkbox label{margin:0}.preference-item.checkbox input[type=checkbox]{cursor:pointer;height:20px;width:20px}.settings-footer{display:flex;justify-content:flex-end;margin-top:30px}.save-button{background-color:var(--flame-orange);border:none;border-radius:6px;color:#fff;cursor:pointer;font-size:1rem;font-weight:500;padding:12px 24px;transition:background-color .2s ease,-webkit-transform .1s ease;transition:background-color .2s ease,transform .1s ease;transition:background-color .2s ease,transform .1s ease,-webkit-transform .1s ease}.save-button:hover{background-color:var(--flame-orange-hover);-webkit-transform:translateY(-1px);transform:translateY(-1px)}.save-button:disabled{cursor:not-allowed;opacity:.5;-webkit-transform:none;transform:none}.message{border-radius:4px;margin:20px 0;padding:12px;text-align:center}.message.success{background-color:rgba(46,204,113,.1);color:#2ecc71}.message.error{background-color:rgba(231,76,60,.1);color:#e74c3c}.legal-links{align-items:center;border-top:1px solid var(--border-color);color:var(--text-secondary);display:flex;font-size:.9rem;gap:12px;justify-content:center;margin-top:40px;padding-top:20px}.legal-links a{color:var(--text-secondary);text-decoration:none;transition:color .2s ease}.legal-links a:hover{color:var(--flame-orange)}.legal-links .separator{color:var(--text-secondary);opacity:.5}@media (max-width:600px){.settings-content,.settings-page{padding:16px}.preference-item input[type=number],.preference-item select{max-width:100%}.legal-links{flex-direction:column;gap:8px}.legal-links .separator{display:none}}.navbar{background-color:#000;box-shadow:0 2px 4px rgba(0,0,0,.1);color:#fff;padding:.75rem}.navbar-actions{align-items:center;display:flex;gap:1rem}.navbar-button{background:transparent;border:1px solid var(--flame-orange);border-radius:4px;color:var(--flame-orange);cursor:pointer;font-size:.8rem;padding:.4rem .8rem;transition:all .2s}.navbar-button:hover{background:var(--flame-orange);color:#000}button.action-btn{border:none;border-radius:4px}.settings-overlay{align-items:center;background:rgba(0,0,0,.5);bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.settings-modal{background:#fff;border-radius:8px;box-shadow:0 4px 6px rgba(0,0,0,.1);max-height:90vh;max-width:600px;overflow-y:auto;width:90%}.settings-modal-header{align-items:center;border-bottom:1px solid #eee;display:flex;justify-content:space-between;padding:.75rem 1rem}.settings-modal-header h2{color:#333;margin:0}.close-button{background:transparent;border:none;color:#666;cursor:pointer;font-size:1.5rem;line-height:1;padding:.4rem}.close-button:hover{color:#333}.status-message{background-color:rgba(0,0,0,.2);border-radius:4px;color:#fff;font-size:.8rem;max-width:200px;overflow:hidden;padding:.3rem .6rem;text-overflow:ellipsis;white-space:nowrap}.error-overlay{-webkit-animation:slide-in .3s ease-out;animation:slide-in .3s ease-out;max-width:100%;position:fixed;right:20px;top:60px;width:400px;z-index:1001}@-webkit-keyframes slide-in{0%{opacity:0;-webkit-transform:translateX(100%);transform:translateX(100%)}to{opacity:1;-webkit-transform:translateX(0);transform:translateX(0)}}@keyframes slide-in{0%{opacity:0;-webkit-transform:translateX(100%);transform:translateX(100%)}to{opacity:1;-webkit-transform:translateX(0);transform:translateX(0)}}.error-container{background-color:#fff;border-left:4px solid #e74c3c;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.15);overflow:hidden}.error-header{align-items:center;background-color:#fef5f5;border-bottom:1px solid #fde0dc;display:flex;justify-content:space-between;padding:12px 16px}.error-header h3{color:#e74c3c;font-size:1rem;font-weight:600;margin:0}.error-content{max-height:300px;overflow-y:auto;padding:16px}.error-content p{color:#333;line-height:1.5;margin:0;word-break:break-word}.error-overlay .close-button{align-items:center;background:transparent;border:none;color:#e74c3c;cursor:pointer;display:flex;font-size:1.25rem;height:24px;justify-content:center;padding:0;width:24px}.error-overlay .close-button:hover{background-color:rgba(231,76,60,.1);border-radius:50%}.settings-icon{background:transparent!important;border:none!important;color:var(--flame-orange)!important}.subscription-container{margin:0 auto;max-width:1200px;padding:2rem}.onboarding-header,.subscription-header{margin-bottom:3rem;text-align:center}.onboarding-header h1,.subscription-header h1{color:var(--flame-orange);font-size:2.5rem;margin-bottom:1rem}.onboarding-header p,.subscription-header p{color:var(--text-secondary);font-size:1.2rem;margin:0 auto;max-width:600px}.subscription-tiers{align-items:stretch;display:flex;flex-wrap:wrap;gap:2rem;justify-content:center;margin-top:2rem}.subscription-tier{background-color:var(--dark-surface);border:1px solid var(--border-color);border-radius:12px;box-shadow:0 8px 16px rgba(0,0,0,.3);display:flex;flex-direction:column;height:auto;padding:2rem;position:relative;transition:box-shadow .3s ease,-webkit-transform .3s ease;transition:transform .3s ease,box-shadow .3s ease;transition:transform .3s ease,box-shadow .3s ease,-webkit-transform .3s ease;width:300px}.subscription-tier:hover{border-color:var(--flame-orange-hover);box-shadow:0 12px 20px rgba(0,0,0,.4);-webkit-transform:translateY(-5px);transform:translateY(-5px)}.subscription-tier h2{color:var(--flame-orange);font-size:1.8rem;margin-bottom:.5rem}.tier-price{color:var(--text-primary);font-size:2rem;font-weight:700;margin-bottom:1.5rem}.tier-features{color:var(--text-primary);flex-grow:1;margin-bottom:2rem}.tier-button-container{margin-top:auto}.feature-item{align-items:flex-start;display:flex;line-height:1.4;margin-bottom:1rem}.feature-checkmark{color:var(--flame-orange);font-weight:700;margin-right:.5rem}.subscribe-button{background-color:var(--flame-orange);border:none;border-radius:8px;color:var(--text-primary);cursor:pointer;font-size:1rem;font-weight:700;padding:1rem;transition:background-color .3s ease;width:100%}.subscribe-button:hover{background-color:var(--flame-orange-hover)}.subscribe-button:disabled{background-color:#555;cursor:not-allowed}.current-plan-badge{background-color:rgba(39,174,96,.2);border:1px solid #2ecc71;border-radius:8px;color:#2ecc71;font-weight:700;padding:1rem;text-align:center}.current-tier{background-color:var(--dark-surface-hover)}.subscription-success{background-color:rgba(39,174,96,.2);color:#2ecc71}.subscription-error,.subscription-success{border-radius:8px;font-weight:500;margin-bottom:2rem;padding:1rem;text-align:center}.subscription-error{background-color:rgba(231,76,60,.2);color:#e74c3c}.loading-spinner{align-items:center;color:var(--text-secondary);display:flex;font-size:1.2rem;height:300px;justify-content:center}@media (max-width:768px){.subscription-tier{max-width:400px;width:100%}.subscription-container{padding:1rem}}:root{--flame-orange:#b71c1c;--flame-orange-hover:#d32f2f;--dark-bg:#0a0a0a;--dark-surface:#141414;--dark-surface-hover:#1e1e1e;--text-primary:#fff;--text-secondary:grey;--border-color:#1e1e1e}body,html{height:100%;margin:0;padding:0}.App{color:#fff;color:var(--text-primary);flex-direction:column;min-height:100vh;text-align:center}.App,.navbar{background-color:#0a0a0a;background-color:var(--dark-bg);display:flex}.navbar{align-items:center;flex-shrink:0;justify-content:space-between;padding:.75rem .75rem 0}.navbar-brand{color:#b71c1c;color:var(--flame-orange);font-size:1.2rem;font-weight:700;letter-spacing:.5px}.app-container{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-content{background:#0a0a0a;background:var(--dark-bg);box-sizing:border-box;display:flex;flex:1 1;flex-direction:column;overflow:scroll;padding:0;width:100%}h1{color:#fff;color:var(--text-primary);font-weight:600;margin-bottom:2rem;margin-left:auto;margin-right:auto;max-width:1000px;padding:0 10px;text-align:left}.card-form{margin-bottom:1rem}.card-form,.form-group{display:flex;flex-direction:column}.form-group{gap:.3rem;text-align:left}label{font-weight:600}label,select,textarea{color:#fff;color:var(--text-primary)}select,textarea{background-color:#141414;background-color:var(--dark-surface);border:none;border-radius:4px;font-size:1rem;padding:.4rem}select:focus,textarea:focus{outline:1px solid #b71c1c;outline:1px solid var(--flame-orange)}button.action-btn{all:unset;align-items:center;background:#141414;background:var(--dark-surface);border:1px solid #1e1e1e;border:1px solid var(--border-color);border-radius:6px;box-sizing:border-box;color:#fff;color:var(--text-primary);cursor:pointer;display:flex;height:32px;justify-content:center;min-width:32px;padding:4px;transition:all .2s ease;width:32px}button.action-btn:hover{background:#1e1e1e;background:var(--dark-surface-hover);border-color:#b71c1c;border-color:var(--flame-orange);color:#b71c1c;color:var(--flame-orange)}button.action-btn svg{stroke:currentColor;fill:none;height:20px;width:20px}.error-message{background-color:rgba(255,68,68,.1);border:1px solid rgba(255,68,68,.3);border-radius:4px;color:#f44;margin-bottom:.75rem;padding:.75rem}.card-result{margin-top:2rem}.flashcard{border:1px solid #1e1e1e;border:1px solid var(--border-color);border-radius:12px;display:flex;justify-content:center;padding:.5rem}.card-side{background-color:#141414;background-color:var(--dark-surface);flex:1 1;transition:all .2s ease}.flashcard:hover{box-shadow:0 6px 12px rgba(0,0,0,.2);-webkit-transform:translateY(-2px);transform:translateY(-2px)}.card-side h3,.card-side p{color:#fff;color:var(--text-primary);margin-bottom:1rem}.card-side p{font-size:1.25rem}.card-side small{color:grey;color:var(--text-secondary);font-style:italic}.App-logo{height:40vmin;pointer-events:none}@media (prefers-reduced-motion:no-preference){.App-logo{-webkit-animation:App-logo-spin 20s linear infinite;animation:App-logo-spin 20s linear infinite}}.App-header{align-items:center;background-color:#282c34;color:#fff;display:flex;flex-direction:column;font-size:calc(10px + 2vmin);justify-content:center;min-height:100vh}.App-link{color:#61dafb}@-webkit-keyframes App-logo-spin{0%{-webkit-transform:rotate(0deg);transform:rotate(0deg)}to{-webkit-transform:rotate(1turn);transform:rotate(1turn)}}@keyframes App-logo-spin{0%{-webkit-transform:rotate(0deg);transform:rotate(0deg)}to{-webkit-transform:rotate(1turn);transform:rotate(1turn)}}.play-audio-btn{background-color:#b71c1c;background-color:var(--flame-orange);border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:14px;transition:background-color .3s;width:32px}.play-audio-btn:hover{background-color:#d32f2f;background-color:var(--flame-orange-hover)}.play-audio-btn:active{background-color:#3d8b40}.file-actions{display:flex;gap:10px;justify-content:center;margin:20px 0}.deck-management{margin-bottom:2rem;text-align:left}.deck-list{display:flex;flex-direction:column;gap:10px;margin-bottom:1rem;overflow-y:auto}.deck-actions{display:flex;gap:10px;justify-content:flex-start}.deck-item{align-items:center;background-color:#141414;background-color:var(--dark-surface);border:1px solid #1e1e1e;border:1px solid var(--border-color);border-radius:8px;cursor:pointer;display:flex;justify-content:space-between;padding:.75rem;transition:all .2s ease}.deck-item.selected,.deck-item:hover{background-color:#1e1e1e;background-color:var(--dark-surface-hover);border-color:#b71c1c;border-color:var(--flame-orange)}.deck-info h3{color:#fff;color:var(--text-primary);font-size:1.1rem;margin:0}.deck-info small{color:grey;color:var(--text-secondary);font-size:.9rem}.deck-item-actions{display:flex;gap:5px}.icon-btn:hover{-webkit-transform:scale(1.1);transform:scale(1.1)}.deck-cards-header{position:relative}.deck-content{display:flex;flex-direction:column}.card-item{background:#141414;background:var(--dark-surface);cursor:pointer;margin-bottom:2px;padding:.5rem;transition:background-color .2s ease}.card-item:hover{background:#1e1e1e;background:var(--dark-surface-hover)}.card-list{display:flex;flex-direction:column}.mode-header{align-items:center;display:flex;gap:1rem}.mode-header h2{font-size:1.5rem;margin:0}.back-btn{align-items:center;background-color:#141414;background-color:var(--dark-surface);border:none;border-radius:4px;color:grey;color:var(--text-secondary);cursor:pointer;display:inline-flex;font-size:.8rem;gap:.3rem;padding:.25rem .5rem;transition:all .2s ease;white-space:nowrap;width:-webkit-fit-content;width:-moz-fit-content;width:fit-content}.back-btn:hover{background-color:#1e1e1e;background-color:var(--dark-surface-hover);color:#b71c1c;color:var(--flame-orange)}.review-mode{margin:0 auto;max-width:800px}.review-card{align-items:center;display:flex;flex-direction:column;gap:20px}.card-progress{color:#666;font-size:1.1em}.review-controls{align-items:center;display:flex;flex-direction:column;gap:15px}.record-btn{background-color:#141414;background-color:var(--dark-surface);border:none;border-radius:25px;color:#fff;color:var(--text-primary);cursor:pointer;font-size:1.1em;padding:8px 16px;transition:all .3s ease}.record-btn.recording{-webkit-animation:pulse 1.5s infinite;animation:pulse 1.5s infinite;background-color:#b71c1c;background-color:var(--flame-orange);color:#fff}@-webkit-keyframes pulse{0%{-webkit-transform:scale(1);transform:scale(1)}50%{-webkit-transform:scale(1.05);transform:scale(1.05)}to{-webkit-transform:scale(1);transform:scale(1)}}@keyframes pulse{0%{-webkit-transform:scale(1);transform:scale(1)}50%{-webkit-transform:scale(1.05);transform:scale(1.05)}to{-webkit-transform:scale(1);transform:scale(1)}}.attempts-counter{color:grey;color:var(--text-secondary);font-size:.9em}.record-btn:disabled{-webkit-animation:none;animation:none;background-color:#1e1e1e;background-color:var(--dark-surface-hover);color:grey;color:var(--text-secondary);cursor:not-allowed}.evaluation-result{background-color:#141414;background-color:var(--dark-surface);display:flex;flex-direction:column;gap:8px;height:100%;justify-content:center;padding-left:5px;padding-right:5px}.evaluation-result.quit{background-color:#e7eeff;border:1px solid #b8daff}.result-icon{font-size:1.2em;font-weight:600}.result-message{color:grey;color:var(--text-secondary);font-size:.9em}@-webkit-keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(-10px);transform:translateY(-10px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(-10px);transform:translateY(-10px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}.test-buttons{display:flex;gap:1rem;justify-content:center;margin:1rem 0}.test-btn{background-color:#141414;background-color:var(--dark-surface);border:none;border-radius:8px;color:#fff;color:var(--text-primary);cursor:pointer;font-size:1.2rem;font-weight:700;padding:.75rem 1.5rem;transition:opacity .2s,-webkit-transform .1s;transition:transform .1s,opacity .2s;transition:transform .1s,opacity .2s,-webkit-transform .1s}.test-btn:hover:not(:disabled){background-color:#1e1e1e;background-color:var(--dark-surface-hover);-webkit-transform:scale(1.05);transform:scale(1.05)}.test-btn:disabled{cursor:not-allowed;opacity:.5}.test-btn.correct{background-color:rgba(76,175,80,.3);border:1px solid #4caf50;color:#4caf50}.test-btn.incorrect{background-color:rgba(244,67,54,.3);border:1px solid #f44336;color:#f44336}.timeline-container{background:#141414;background:var(--dark-surface);border-top:1px solid #1e1e1e;border-top:1px solid var(--border-color);bottom:0;height:150px;left:0;overflow-x:auto;padding:.75rem;position:fixed;right:0;white-space:nowrap}.timeline{height:100%;min-width:100%;padding:20px 0;position:relative}.timeline-card{background:#141414;background:var(--dark-surface);border:1px solid #1e1e1e;border:1px solid var(--border-color);border-radius:4px;box-shadow:0 2px 4px rgba(0,0,0,.1);color:#fff;color:var(--text-primary);cursor:pointer;font-size:.8rem;max-width:200px;padding:6px;position:absolute;top:20px;-webkit-transform:translateX(-50%);transform:translateX(-50%);transition:all .2s;white-space:normal}.timeline-card:hover{border-color:#b71c1c;border-color:var(--flame-orange);box-shadow:0 4px 8px rgba(0,0,0,.15);-webkit-transform:translateX(-50%) translateY(-2px);transform:translateX(-50%) translateY(-2px)}.timeline-card.current{background:#1e1e1e;background:var(--dark-surface-hover);border:2px solid #b71c1c;border:2px solid var(--flame-orange)}.timeline-card .front-text{color:#fff;color:var(--text-primary);font-weight:700;margin-bottom:4px}.timeline-card .stats{color:grey;color:var(--text-secondary);font-size:.75rem}.timeline-line{background:#1e1e1e;background:var(--border-color);bottom:0;height:2px;left:0;position:absolute;right:0}.timeline-now{background:#b71c1c;background:var(--flame-orange);bottom:-10px;height:20px;width:2px}.timeline-now,.timeline-now:after{position:absolute;-webkit-transform:translateX(-50%);transform:translateX(-50%)}.timeline-now:after{bottom:-20px;color:#b71c1c;color:var(--flame-orange);content:"Now";font-size:.75rem;left:50%;white-space:nowrap}.deck-list::-webkit-scrollbar{width:8px}.deck-list::-webkit-scrollbar-track{background:#141414;background:var(--dark-surface);border-radius:4px}.deck-list::-webkit-scrollbar-thumb{background:#1e1e1e;background:var(--border-color);border-radius:4px}.deck-list::-webkit-scrollbar-thumb:hover{background:#b71c1c;background:var(--flame-orange)}
/*# sourceMappingURL=main.044428b2.css.map*/