:root{--primary-color: #3b82f6;--primary-color-dark: #2563eb;--success-color: #22c55e;--error-color: #ef4444;--background-color: #f8fafc;--surface-color: #ffffff;--text-color: #1e293b;--text-light-color: #64748b;--border-color: #cbd5e1;--border-focus-color: #60a5fa;--font-family: "Poppins", sans-serif;--border-radius: .5rem;--box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--background-color);color:var(--text-color);min-height:100vh;margin:0;padding:0}#root{width:100%;min-height:100vh;display:flex;flex-direction:column}.app-container{flex:1;width:100%;max-width:1000px;margin:0 auto;background-color:var(--surface-color);padding:2rem;position:relative}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding:10px 0;position:relative;gap:10px}.app-header .left-controls,.app-header .right-controls{display:flex;align-items:center;gap:10px}.language-selector{display:flex;align-items:center}.language-select{padding:6px 10px;border:1px solid var(--border-color);border-radius:.375rem;background:var(--surface-color);font-size:13px;cursor:pointer;min-width:100px;font-family:var(--font-family);transition:border-color .2s}.language-select:hover{border-color:var(--border-focus-color)}.language-select:focus{outline:none;border-color:var(--border-focus-color);box-shadow:0 0 0 2px #3b82f64d}.debug-button{background:#6c757d;color:#fff;border:none;border-radius:.375rem;padding:6px 10px;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #0003;transition:all .2s ease;z-index:900}.debug-button:hover{background:#5a6268;transform:scale(1.05)}h1{text-align:center;margin-bottom:.5rem;font-size:2.25rem;color:var(--text-color)}.app-subtitle{text-align:center;margin-bottom:2rem;color:var(--text-light-color);font-size:1.1rem}.mode-selector{margin-bottom:2rem}.mode-tabs{display:flex;border-bottom:2px solid var(--border-color);margin-bottom:1rem}.mode-tab{flex:1;padding:1rem 2rem;border:none;background:transparent;color:var(--text-light-color);font-size:1rem;font-weight:500;font-family:var(--font-family);cursor:pointer;transition:all .2s;border-bottom:3px solid transparent}.mode-tab:hover{color:var(--text-color);background-color:var(--background-color)}.mode-tab.active{color:var(--primary-color);border-bottom-color:var(--primary-color);background-color:var(--surface-color)}.settings-panel{display:flex;flex-direction:column;gap:1.5rem}.settings-panel-container{position:relative}.settings-panel-wrapper{width:100%}.settings-panel-wrapper.active{display:block}.settings-panel-wrapper.hidden{display:none}.operation-checkboxes{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;margin-top:.5rem}.checkbox-label{display:flex;align-items:center;gap:.5rem;cursor:pointer;padding:.5rem;border-radius:.375rem;transition:background-color .2s}.checkbox-label:hover{background-color:var(--background-color)}.checkbox-label input[type=checkbox]{width:1.25rem;height:1.25rem;cursor:pointer}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:500}.input,.select{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:.375rem;font-size:1rem;font-family:var(--font-family);transition:border-color .2s}.input:hover,.select:hover{border-color:var(--border-focus-color)}.input:focus,.select:focus{outline:none;border-color:var(--border-focus-color);box-shadow:0 0 0 2px #3b82f64d}.recommendation-banner{background:linear-gradient(135deg,gold,#ffed4e);color:#1a1a1a;padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:14px;font-weight:500;border:1px solid #fbbf24;box-shadow:0 2px 4px #ffd70033;display:flex;align-items:center;justify-content:space-between;position:relative}.recommendation-text{flex:1;margin-right:8px}.recommendation-clear-btn{background:none;border:none;color:#1a1a1a;font-size:18px;font-weight:700;cursor:pointer;padding:4px 8px;border-radius:4px;transition:all .2s ease;opacity:.7;line-height:1;min-width:24px;height:24px;display:flex;align-items:center;justify-content:center}.recommendation-clear-btn:hover{background:#0000001a;opacity:1;transform:scale(1.1)}.recommendation-clear-btn:active{transform:scale(.95)}.recommended-option{background:#ffd7001a!important;font-weight:600!important}.custom-range-inputs{display:flex;gap:1rem;align-items:center}.custom-range-inputs .input{width:80px;text-align:center}.button{padding:.75rem 1.5rem;border:none;border-radius:.375rem;font-size:1rem;font-weight:600;font-family:var(--font-family);cursor:pointer;transition:background-color .2s,transform .1s;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background-color:var(--border-color);color:var(--text-color)}.button:hover{background-color:var(--text-light-color);color:#fff}.button-primary{background-color:var(--primary-color);color:#fff}.button-primary:hover{background-color:var(--primary-color-dark)}.button:active{transform:scale(.98)}.button:disabled{background-color:var(--border-color);cursor:not-allowed}.start-button{margin-top:1rem;width:100%}.practice-panel{display:flex;flex-direction:column;gap:1.5rem}.audio-controls{display:flex;flex-wrap:wrap;gap:1rem;padding:1rem;background-color:#f1f5f9;border-radius:var(--border-radius);justify-content:center;align-items:center}.speed-interval-container{display:flex;gap:1rem;align-items:center;white-space:nowrap;flex-shrink:0}.progress-section{width:100%;display:flex;flex-direction:column;gap:.5rem;margin-top:1rem}.progress-info{display:flex;justify-content:space-between;align-items:center;font-size:.9rem;color:var(--text-light-color)}.progress-bar{width:100%;height:12px;background:linear-gradient(90deg,#cbd5e14d,#cbd5e199,#cbd5e14d);border-radius:6px;overflow:hidden;box-shadow:inset 0 2px 4px #0000001a;position:relative}.progress-bar:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.4) 50%,transparent 100%);animation:progress-shimmer 2s infinite}@keyframes progress-shimmer{0%{left:-100%}to{left:100%}}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-color) 0%,#60a5fa 25%,var(--primary-color) 50%,#3b82f6 75%,var(--primary-color-dark) 100%);background-size:200% 100%;border-radius:6px;transition:width .5s cubic-bezier(.4,0,.2,1);animation:progress-gradient 3s ease-in-out infinite;position:relative;box-shadow:0 2px 8px #3b82f64d}@keyframes progress-gradient{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.progress-fill:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.3) 50%,transparent 100%);border-radius:6px}.interval-control,.speed-control{display:flex;align-items:center;gap:.5rem;white-space:nowrap;flex-shrink:0;min-width:fit-content;flex-wrap:nowrap}.grid-container{display:grid;grid-template-columns:repeat(10,1fr);gap:.5rem}.grid-cell{position:relative;aspect-ratio:1 / 1;display:flex;justify-content:center;align-items:center}.input-container{position:relative;width:100%;height:100%;display:flex;justify-content:center;align-items:center}.grid-cell .input{width:100%;height:100%;text-align:center;font-size:1.25rem;font-weight:600;padding:0}.grid-cell.current-playing .input{border:3px solid var(--primary-color);box-shadow:0 0 0 2px #3b82f64d;animation:pulse 1.5s infinite}@keyframes pulse{0%,to{box-shadow:0 0 0 2px #3b82f64d}50%{box-shadow:0 0 0 4px #3b82f680}}.feedback-cell{width:100%;height:100%;border-radius:.375rem;display:flex;justify-content:center;align-items:center;font-size:1.25rem;font-weight:600;border:2px solid}.feedback-cell.correct{border-color:var(--success-color);color:var(--success-color)}.feedback-cell.incorrect{border-color:var(--error-color)}.feedback-content{display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1}.user-answer-wrong{color:var(--text-light-color);text-decoration:line-through;font-size:.7rem}.correct-answer{color:var(--text-color);font-weight:700;font-size:1.1rem}.placeholder-question{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:1.5rem;color:#9ca3af;pointer-events:none;z-index:1}.practice-actions{display:flex;justify-content:space-between;align-items:center;margin-top:1rem}.pagination-controls{display:flex;gap:.5rem}.modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:var(--surface-color);border-radius:var(--border-radius);box-shadow:var(--box-shadow);max-width:400px;width:90%;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 1.5rem 0;border-bottom:1px solid var(--border-color)}.modal-header h3{margin:0;color:var(--text-color);font-size:1.25rem}.modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-light-color);padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color .2s}.modal-close:hover{background-color:var(--background-color)}.modal-body{padding:1.5rem}.modal-body p{margin:0;color:var(--text-color);line-height:1.5}.modal-actions{display:flex;gap:1rem;padding:0 1.5rem 1.5rem;justify-content:flex-end}.button-secondary{background-color:var(--border-color);color:var(--text-color)}.button-secondary:hover{background-color:var(--text-light-color);color:#fff}.celebration-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;pointer-events:none;z-index:9999;overflow:hidden}.confetti{position:absolute;width:10px;height:10px;background:var(--primary-color);animation:confetti-fall 3s linear infinite}.confetti:nth-child(odd){background:var(--success-color);animation-delay:-.5s}.confetti:nth-child(3n){background:#fbbf24;animation-delay:-1s}.confetti:nth-child(4n){background:#f472b6;animation-delay:-1.5s}.confetti:nth-child(5n){background:#a78bfa;animation-delay:-2s}@keyframes confetti-fall{0%{transform:translateY(-100vh) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}.firework{position:absolute;width:4px;height:4px;border-radius:50%;animation:firework-explosion 1s ease-out forwards}@keyframes firework-explosion{0%{transform:scale(0);opacity:1}50%{transform:scale(1);opacity:1}to{transform:scale(2);opacity:0}}.celebration-text{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);font-size:clamp(1.5rem,5vw,3rem);font-weight:700;color:var(--success-color);text-shadow:2px 2px 4px rgba(0,0,0,.3);animation:celebration-bounce 2s ease-in-out;z-index:10000;pointer-events:none;text-align:center;white-space:nowrap;max-width:90vw;overflow:hidden;text-overflow:ellipsis}@keyframes celebration-bounce{0%,20%,50%,80%,to{transform:translate(-50%,-50%) translateY(0)}40%{transform:translate(-50%,-50%) translateY(-30px)}60%{transform:translate(-50%,-50%) translateY(-15px)}}@media (max-width: 768px){h1{font-size:1.75rem}.app-subtitle{font-size:1rem}.app-container{padding:1rem}.grid-container{grid-template-columns:repeat(5,1fr)}.celebration-text{font-size:clamp(1rem,4vw,2rem);max-width:95vw;padding:0 1rem}.practice-actions{flex-direction:column;gap:1rem;align-items:stretch}.pagination-controls{order:-1;justify-content:center}.volume-slider-container{left:auto;right:0;transform:none}.volume-slider-container:before{left:auto;right:20px;transform:none}.audio-controls{gap:.75rem;padding:.75rem}.speed-interval-container{white-space:nowrap;flex-shrink:0;min-width:fit-content}.speed-control,.interval-control{white-space:nowrap;flex-shrink:0;min-width:fit-content;flex-wrap:nowrap}.speed-control label,.speed-control select,.interval-control label,.interval-control input,.interval-control span{white-space:nowrap;flex-shrink:0}}.volume-control{position:relative;display:flex;align-items:center}.volume-button{background:#e9ecef;color:#495057;border:none;border-radius:.375rem;padding:6px 10px;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #0000001a;transition:all .2s ease;z-index:900}.volume-button:hover{background:#dee2e6;transform:scale(1.05)}.volume-slider-container{position:absolute;top:100%;left:50%;transform:translate(-50%);background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:12px;margin-top:8px;display:flex;flex-direction:column;align-items:center;gap:8px;z-index:950;min-width:120px}.volume-slider-container:before{content:"";position:absolute;top:-6px;left:50%;transform:translate(-50%);width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-bottom:6px solid var(--surface-color)}.volume-slider{width:80px;height:4px;border-radius:2px;background:var(--border-color);outline:none;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--primary-color);cursor:pointer;transition:all .2s ease}.volume-slider::-webkit-slider-thumb:hover{background:var(--primary-color-dark);transform:scale(1.2)}.volume-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--primary-color);cursor:pointer;border:none;transition:all .2s ease}.volume-slider::-moz-range-thumb:hover{background:var(--primary-color-dark);transform:scale(1.2)}.volume-percentage{font-size:12px;color:var(--text-light-color);font-weight:500}.corner-widget{position:fixed;top:1rem;left:1rem;background:#fff;border-radius:1rem;box-shadow:0 10px 20px #0000001a;transition:all .3s ease-in-out;overflow:hidden;z-index:1100;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;cursor:pointer;color:#1e293b;font-size:14px}.main-display{display:flex;align-items:center;gap:.75rem;padding:.75rem}.level-icon-container{background:#fef3c7;border-radius:50%;padding:.75rem;display:flex;align-items:center;justify-content:center;border:2px solid #f59e0b}.level-info{display:flex;flex-direction:column}.level-text{font-weight:700;font-size:1.125rem;color:#1e293b;white-space:nowrap;text-shadow:none}.details{max-height:0;opacity:0;transition:max-height .4s ease-in-out,opacity .3s ease-in-out,padding .4s ease-in-out;padding-top:0;padding-bottom:0;overflow:hidden}.corner-widget:hover .details,.corner-widget.pinned .details{max-height:200px;opacity:1;padding-top:.5rem;padding-bottom:1rem}.details-content{padding:0 .75rem;border-top:1px solid #e2e8f0}.exp-section{margin-bottom:.75rem}.exp-text-small{font-size:.75rem;color:#64748b;text-align:right;margin-bottom:.25rem}.exp-bar-container{width:100%;height:.5rem;background:#e2e8f0;border-radius:.25rem;overflow:hidden;position:relative}.exp-bar-fill{height:100%;background:#14b8a6;border-radius:.25rem;transition:width .5s ease}.stats-section{display:flex;justify-content:space-between;gap:.75rem}.stat-item{display:flex;align-items:center;gap:.25rem;font-weight:600;font-size:.875rem;color:#1e293b}@keyframes level-up-animation{0%{transform:scale(1)}50%{transform:scale(1.1);box-shadow:0 0 20px #14b8a680}to{transform:scale(1)}}.level-up-effect{animation:level-up-animation .6s ease-in-out}@media (max-width: 768px){.corner-widget{top:.5rem;left:.5rem}.main-display{padding:.5rem;gap:.5rem}.level-icon-container{padding:.5rem}.level-text{font-size:1rem}.details-content{padding:0 .5rem}.exp-text-small{font-size:.625rem}.stats-section{gap:.5rem}.stat-item{font-size:.75rem;gap:.2rem}.stat-item svg{width:12px;height:12px}}@media (max-width: 480px){.corner-widget{top:.25rem;left:.25rem}.main-display{padding:.4rem;gap:.4rem}.level-icon-container{padding:.4rem}.level-text{font-size:.875rem}.details-content{padding:0 .4rem}.exp-text-small{font-size:.6rem}.stats-section{gap:.375rem}.stat-item{font-size:.65rem;gap:.15rem}.stat-item svg{width:11px;height:11px}}.difficulty-selector{position:relative;width:100%}.difficulty-selector-trigger{width:100%;padding:12px 16px;background:linear-gradient(145deg,#fff,#f8fafc);border:2px solid #e2e8f0;border-radius:12px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:500;color:#1e293b;transition:all .3s ease;box-shadow:0 2px 4px #0000000d}.difficulty-selector-trigger:hover{border-color:#3b82f6;box-shadow:0 4px 12px #3b82f626;transform:translateY(-1px)}.difficulty-selector-trigger.open{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a}.selected-text{flex:1;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dropdown-arrow{margin-left:8px;transition:transform .3s ease;color:#64748b;font-size:12px}.dropdown-arrow.up{transform:rotate(180deg)}.difficulty-dropdown{position:absolute;top:100%;left:0;right:0;z-index:1000;background:#fff;border:2px solid #e2e8f0;border-radius:16px;box-shadow:0 20px 40px #00000026;margin-top:4px;max-height:400px;overflow:hidden;animation:dropdownSlideIn .3s cubic-bezier(.34,1.56,.64,1)}@keyframes dropdownSlideIn{0%{opacity:0;transform:translateY(-10px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.search-container{padding:12px;border-bottom:1px solid #f1f5f9;background:#f8fafc}.search-input{width:100%;padding:8px 12px;border:1px solid #e2e8f0;border-radius:8px;font-size:14px;background:#fff;transition:border-color .2s ease}.search-input:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f61a}.search-input::placeholder{color:#94a3b8}.options-container{max-height:320px;overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none}.options-container::-webkit-scrollbar{display:none}.option-category{border-bottom:1px solid #f1f5f9}.option-category:last-child{border-bottom:none}.category-header{display:flex;align-items:center;padding:12px 16px 8px;background:#f8fafc;font-size:12px;font-weight:600;color:#64748b;text-transform:uppercase;letter-spacing:.05em;position:sticky;top:0;z-index:10}.category-icon{margin-right:8px;font-size:14px}.category-name{flex:1}.category-options{padding:4px 0}.option-item{width:100%;padding:10px 16px;background:none;border:none;text-align:left;cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-size:14px;color:#374151;transition:all .2s ease;position:relative}.option-item:hover{background:#f1f5f9;color:#1e293b}.option-item.selected{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;font-weight:600}.option-item.selected:hover{background:linear-gradient(135deg,#2563eb,#1d4ed8)}.option-item.recommended{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#fff;font-weight:600;position:relative}.option-item.recommended:hover{background:linear-gradient(135deg,#f59e0b,#d97706)}.option-item.recommended:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:#fbbf24;border-radius:0 4px 4px 0}.option-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recommend-star{margin-left:8px;font-size:16px;animation:starTwinkle 2s ease-in-out infinite}@keyframes starTwinkle{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}}@media (max-width: 768px){.difficulty-dropdown{max-height:300px}.options-container{max-height:220px}.difficulty-selector-trigger{padding:10px 14px;font-size:13px}.option-item{padding:8px 14px;font-size:13px}.category-header{padding:10px 14px 6px;font-size:11px}}@media (max-width: 480px){.difficulty-dropdown{max-height:250px}.options-container{max-height:170px}.search-container{padding:10px}.search-input{padding:6px 10px;font-size:13px}}@media (prefers-contrast: high){.difficulty-selector-trigger{border-width:3px}.option-item.selected{background:#000;color:#fff}.option-item.recommended{background:#f60;color:#fff}}@media (prefers-reduced-motion: reduce){.difficulty-selector-trigger,.dropdown-arrow,.option-item,.recommend-star{transition:none;animation:none}.difficulty-dropdown{animation:none}}.reward-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;justify-content:center;align-items:center;z-index:1500;opacity:0;transition:opacity .4s ease-out;pointer-events:none;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.reward-modal-overlay.visible{opacity:1;pointer-events:auto}.reward-modal{background:linear-gradient(160deg,#3b82f6,#4f46e5);color:#fff;text-shadow:0 2px 5px rgba(0,0,0,.2);border:none;border-radius:24px;padding:24px;text-align:center;box-shadow:0 25px 50px #00000026;min-width:360px;max-width:420px;height:500px;display:flex;flex-direction:column;align-items:center;transform:translateY(30px) scale(.9);opacity:0;transition:all .5s cubic-bezier(.34,1.56,.64,1);position:relative;overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none;pointer-events:none}.reward-modal::-webkit-scrollbar{display:none}.reward-modal:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#3b82f6,#8b5cf6,#06b6d4,#10b981);background-size:300% 100%;animation:gradientShift 3s ease-in-out infinite}.reward-modal.visible{transform:translate(0) scale(1);opacity:1;pointer-events:auto}.level-up-view{width:100%;text-align:center;margin-bottom:24px;opacity:0;transform:translateY(20px);transition:all .6s ease-out .2s}.reward-modal.visible .level-up-view{opacity:1;transform:translateY(0)}.level-up-view h2,.level-up-view .level-up-title,.level-up-view .level-up-title *{color:#fff!important}.level-up-title{font-size:3rem;font-weight:900;font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;margin:0;letter-spacing:-.02em;display:flex;flex-direction:column;align-items:center;gap:.25rem;color:#fff!important}.level-number{color:#fde047;background:linear-gradient(90deg,#fde047,#fff,#fde047);background-size:200% 100%;background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 4px 8px rgba(0,0,0,.3),0 2px 4px rgba(0,0,0,.2);animation:sweep-light 3s ease-in-out infinite;white-space:nowrap}.reward-modal .level-text{color:#fff!important;font-size:1.875rem!important;font-weight:900!important;margin:0!important;text-shadow:0 2px 4px rgba(0,0,0,.3);white-space:nowrap;font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif!important;line-height:1!important}.normal-view{width:100%;text-align:center;margin-bottom:24px;opacity:0;transform:translateY(20px);transition:all .6s ease-out .2s}.reward-modal.visible .normal-view{opacity:1;transform:translateY(0)}.session-title{font-size:1.875rem;font-weight:900;margin:0 0 8px;color:#fff}.session-subtitle{font-size:.875rem;color:#bfdbfe;font-weight:600;margin:0}.experience-display{text-align:center;margin:24px 0;opacity:0;transform:translateY(20px);transition:all .6s ease-out .4s}.reward-modal.visible .experience-display{opacity:1;transform:translateY(0)}.experience-value{font-size:6.5rem;font-weight:900;color:#fde047;line-height:1;margin-bottom:-8px;display:flex;align-items:baseline;justify-content:center;gap:.25rem}.base-exp{color:#fde047}.streak-plus{font-size:2.25rem;color:#fde047;font-weight:600}.streak-bonus{font-size:2.25rem;color:#fbbf24;display:flex;align-items:baseline;gap:.125rem}.lightning{font-size:1.5rem;animation:lightning-pulse 1.5s ease-in-out infinite}.experience-label{font-size:1.25rem;font-weight:700;color:#fef3c7;margin-top:-8px}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;width:100%;margin:24px 0;opacity:0;transform:translateY(20px);transition:all .6s ease-out .5s}.reward-modal.visible .stats-grid{opacity:1;transform:translateY(0)}.stat-card{background:#ffffff1a;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:12px;text-align:center;transition:all .3s ease}.stat-card:hover{transform:translateY(-2px);box-shadow:0 8px 25px #0000001a}.stat-label{font-size:.875rem;font-weight:700;opacity:.8;margin-bottom:4px}.stat-value{font-size:1.5rem;font-weight:700;color:#fff}.reward-footer{margin-top:auto;width:100%;opacity:0;transform:translateY(20px);transition:all .6s ease-out .6s}.reward-modal.visible .reward-footer{opacity:1;transform:translateY(0)}.xp-bar-container{margin-bottom:16px}.xp-bar-track{background:#0003;border-radius:6px;height:12px;overflow:hidden}.xp-bar-fill{background:linear-gradient(90deg,#fde047,#facc15);height:100%;border-radius:6px;transition:width .5s ease}.xp-text{font-size:.75rem;text-align:center;margin-top:4px;font-weight:600;opacity:.8;color:#fff}.reward-confirm-btn{background:#fff;color:#3b82f6;border:none;border-radius:24px;padding:12px 32px;font-size:1.125rem;font-weight:700;cursor:pointer;transition:all .3s ease;width:100%;box-shadow:0 4px 12px #0000001a}.reward-confirm-btn:hover{background:#f0f9ff;transform:scale(1.05)}@keyframes sweep-light{0%{background-position:-200% 0}50%{background-position:200% 0}to{background-position:-200% 0}}@keyframes lightning-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.1)}}@keyframes bonusGlow{0%,to{box-shadow:0 4px 12px #fbbf244d}50%{box-shadow:0 8px 20px #fbbf2480}}@keyframes perfectScoreSlideIn{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes rotateIn{0%{transform:rotate(-180deg) scale(0);opacity:0}to{transform:rotate(0) scale(1);opacity:1}}@media (max-width: 768px){.reward-modal{margin:20px;min-width:auto;max-width:calc(100vw - 40px);height:auto;max-height:calc(100vh - 40px);padding:20px}.experience-value{font-size:5.5rem}.level-up-title{font-size:2.25rem}.level-number{font-size:1em}.reward-modal .level-text{font-size:1.5rem!important}.streak-bonus,.streak-plus{font-size:1.875rem}.lightning{font-size:1.25rem}.session-title{font-size:1.5rem}}@media (max-width: 480px){.reward-modal{margin:16px;min-width:auto;max-width:calc(100vw - 32px);height:auto;max-height:calc(100vh - 32px);padding:16px}.experience-value{font-size:4.5rem}.experience-label{font-size:1rem}.level-up-title{font-size:1.875rem}.level-number{font-size:1em}.reward-modal .level-text{font-size:1.25rem!important}.streak-bonus,.streak-plus{font-size:1.5rem}.lightning{font-size:1rem}.session-title{font-size:1.25rem}.session-subtitle{font-size:.75rem}.stats-grid{gap:12px}.stat-card{padding:8px}.stat-value{font-size:1.25rem}.stat-label{font-size:.75rem}.reward-confirm-btn{padding:10px 24px;font-size:1rem}}@media (max-height: 600px){.reward-modal{height:auto;max-height:calc(100vh - 20px);margin:10px;padding:16px}.experience-display{margin:16px 0}.experience-value{font-size:4.5rem}.stats-grid{margin:16px 0}}.reward-modal-overlay:not(.visible){animation:fadeOut .4s ease-out forwards}.reward-modal-overlay:not(.visible) .reward-modal{animation:slideOut .4s ease-out forwards}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes slideOut{0%{transform:translate(0) scale(1);opacity:1}to{transform:translateY(20px) scale(.9);opacity:0}}.slot-machine-number{display:inline-flex;align-items:baseline;font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:900;color:#fde047;line-height:1}.slot-machine-number .plus-sign{margin-right:.1em;color:#fde047}.slot-digit{display:inline-block;min-width:.6em;text-align:center;position:relative;overflow:hidden;transition:all .1s ease}.slot-digit.animating{animation:digit-bounce .1s ease-in-out infinite alternate;text-shadow:0 0 10px rgba(253,224,71,.8),0 0 20px rgba(253,224,71,.6),0 0 30px rgba(253,224,71,.4);transform:scale(1.05)}@keyframes digit-bounce{0%{transform:scale(1.05) translateY(0)}to{transform:scale(1.1) translateY(-2px)}}.slot-digit.animating:before{content:"";position:absolute;top:-2px;left:-2px;right:-2px;bottom:-2px;background:linear-gradient(45deg,#fde0474d,#fbbf244d,#fde0474d);border-radius:4px;z-index:-1;animation:glow-pulse .2s ease-in-out infinite alternate}@keyframes glow-pulse{0%{opacity:.5;transform:scale(.95)}to{opacity:.8;transform:scale(1.05)}}.experience-value .slot-machine-number{font-size:inherit}@media (max-width: 768px){.slot-digit{min-width:.55em}}@media (max-width: 480px){.slot-digit{min-width:.5em}.slot-digit.animating{transform:scale(1.03)}.slot-digit.animating:before{top:-1px;left:-1px;right:-1px;bottom:-1px}}@media (prefers-reduced-motion: reduce){.slot-digit.animating{animation:none;transform:none;text-shadow:none}.slot-digit.animating:before{display:none}}.dynamic-title{font-size:2.5rem;font-weight:700;color:#2c3e50;margin:1rem 0;text-align:center;line-height:1.2;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:.3rem}.language-selector-wrapper{display:inline-flex;align-items:center;position:relative;margin:0 .2rem;white-space:nowrap}.dictation-language-dropdown{font-size:inherit;font-weight:inherit;font-family:inherit;color:inherit;background:transparent;border:none;outline:none;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;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='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right .2rem center;background-size:1rem;padding-right:1.5rem;transition:all .2s ease;border-radius:4px;padding:.1rem 1.2rem .1rem .2rem;margin:0 .1rem}.dictation-language-dropdown:hover{background-color:#3498db1a;color:#3498db}.dictation-language-dropdown:focus{background-color:#3498db26;color:#2980b9;box-shadow:0 0 0 2px #3498db4d}.dictation-language-dropdown:active{background-color:#3498db33}.dictation-language-dropdown option{background:#fff;color:#2c3e50;padding:.5rem;font-size:1rem;font-weight:400}.dictation-language-dropdown option:hover{background:#3498db;color:#fff}@media (max-width: 768px){.dynamic-title{font-size:2rem;flex-direction:row;flex-wrap:wrap;gap:.23rem;justify-content:center}.language-selector-wrapper{white-space:nowrap;flex-shrink:0}.dictation-language-dropdown{font-size:2rem;padding:.3rem 2rem .3rem .3rem;background-size:1.2rem}}@media (max-width: 480px){.dynamic-title{font-size:1.5rem;gap:.2rem}.language-selector-wrapper{white-space:nowrap;flex-shrink:0}.dictation-language-dropdown{font-size:1.5rem;padding:.2rem 1.8rem .2rem .2rem;background-size:1rem}}@media (prefers-contrast: high){.dictation-language-dropdown{border:2px solid currentColor}.dictation-language-dropdown:hover,.dictation-language-dropdown:focus{background-color:currentColor;color:#fff}}@media (prefers-reduced-motion: reduce){.dictation-language-dropdown{transition:none}}@media (prefers-color-scheme: dark){.dynamic-title{color:#ecf0f1}.dictation-language-dropdown:hover{background-color:#3498db33}.dictation-language-dropdown:focus{background-color:#3498db40}.dictation-language-dropdown option{background:#2c3e50;color:#ecf0f1}}