:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f5f5f5;min-height:100vh;overflow:hidden}#root{min-height:100vh;width:100%}.game-container{display:flex;width:100%;height:100vh;background:#fff;position:relative}.game-main{flex:1;max-width:65%;padding:40px 80px;display:flex;flex-direction:column;position:relative;background:#fff;z-index:10}.game-sidebar-right{width:35%;min-width:400px;background:linear-gradient(180deg,#a8e6cf,#7fcdbb 20%,#41b6c4,#2c7fb8 80%,#253494);position:relative;overflow:hidden}.game-sidebar-right:before{content:"";position:absolute;bottom:0;left:0;right:0;height:40%;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 400 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0,100 Q100,50 200,100 T400,100 L400,200 L0,200 Z' fill='%2341b6c4' opacity='0.6'/%3E%3Cpath d='M0,120 Q100,80 200,120 T400,120 L400,200 L0,200 Z' fill='%232c7fb8' opacity='0.8'/%3E%3C/svg%3E") no-repeat bottom;background-size:cover}.progression-bar-container{position:absolute;right:40px;top:50%;transform:translateY(-50%);height:70%;display:flex;align-items:center;justify-content:center;z-index:100}.progression-bar{width:60px;height:100%;max-height:500px;background:#ffffff4d;border:3px solid rgba(255,255,255,.5);border-radius:30px;position:relative;overflow:hidden;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.progression-fill{position:absolute;bottom:0;width:100%;background:linear-gradient(to top,gold,#ffed4e);transition:height 1.5s cubic-bezier(.4,0,.2,1);display:flex;align-items:flex-start;justify-content:center;padding-top:15px}.progression-star{font-size:2rem;animation:bounce 1s infinite;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.question-indicator{position:absolute;top:30px;left:0;right:0;display:flex;justify-content:center}.dots-container{display:flex;gap:12px}.question-dot{width:12px;height:12px;border-radius:50%;background:#e0e0e0;transition:all .3s ease}.question-dot.completed{background:#48bb78}.question-dot.current{background:#4299e1;transform:scale(1.3)}.loading{font-size:2rem;color:#718096;display:flex;align-items:center;justify-content:center;height:100vh}.activity-container{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;max-width:800px;margin:0 auto;width:100%}.activity-header{text-align:center;margin-bottom:30px;width:100%}.activity-header h2{color:#2d3748;font-size:1.8rem;margin:0 0 20px;font-weight:400}.play-audio-btn{background:#e3f2fd;color:#1976d2;border:none;width:60px;height:60px;font-size:1.8rem;border-radius:50%;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #0000001a}.play-audio-btn:hover{background:#bbdefb;transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.activity-image{margin-bottom:30px}.activity-image img{max-width:250px;max-height:200px;object-fit:contain;border-radius:12px}.word-options-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:600px;width:100%;margin-bottom:30px}.word-option-large{background:#fff;border:3px solid #e0e0e0;padding:30px 40px;font-size:1.8rem;border-radius:16px;cursor:pointer;transition:all .2s ease;position:relative;color:#2d3748;font-weight:500;box-shadow:0 2px 8px #0000000d}.word-option-large:hover:not(:disabled){border-color:#90cdf4;transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.word-option-large.selected{background:#e3f2fd;border-color:#1976d2}.word-option-large.correct{background:#e8f5e9;border-color:#4caf50}.word-option-large.incorrect{background:#ffebee;border-color:#f44336}.word-option-large.disabled{opacity:.5;cursor:not-allowed}.x-mark{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:3rem;color:#f44336;font-weight:700}.check-button{background:#4caf50;color:#fff;border:none;padding:18px 60px;font-size:1.4rem;font-weight:500;border-radius:50px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #4caf504d}.check-button:hover:not(:disabled){background:#45a049;transform:translateY(-2px);box-shadow:0 6px 16px #4caf5066}.check-button.disabled{background:#e0e0e0;color:#9e9e9e;cursor:not-allowed;box-shadow:none}.check-button.correct{background:#4caf50}.word-completion-area{margin:40px 0}.word-completion-display{font-size:3.5rem;font-weight:500;color:#2d3748;display:flex;align-items:baseline;justify-content:center;margin-bottom:40px}.sentence-display{font-size:2rem;font-weight:400;color:#2d3748;display:inline;line-height:1.8;text-align:center;margin-bottom:40px}.word-part{color:#4a5568}.sentence-part{color:#2d3748}.word-separator{display:none}.missing-part{color:#1976d2;border-bottom:3px solid #1976d2;min-width:120px;text-align:center;padding:0 10px;margin:0 5px;display:inline-block}.completion-options{display:flex;gap:15px;justify-content:center;flex-wrap:wrap}.completion-option{background:#1976d2;border:none;padding:20px 40px;font-size:1.6rem;font-weight:500;border-radius:50px;cursor:pointer;transition:all .2s ease;color:#fff;box-shadow:0 2px 8px #1976d24d}.completion-option:hover:not(:disabled){background:#1565c0;transform:translateY(-2px);box-shadow:0 4px 12px #1976d266}.completion-option.selected{background:#1565c0}.completion-option.correct{background:#4caf50}.completion-option.incorrect{background:#f44336;animation:shake .5s ease}.spelling-area{margin-bottom:30px;text-align:center;width:100%}.selected-letters-grid{display:flex;gap:10px;justify-content:center;padding:25px;background:#f5f5f5;border-radius:12px;margin-bottom:30px;min-height:80px;align-items:center}.letter-slot{width:60px;height:60px;background:#fff;border:2px solid #e0e0e0;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:500;color:#2d3748;cursor:pointer;transition:all .2s ease}.letter-slot.filled{background:#1976d2;color:#fff;border-color:#1976d2}.letter-slot.filled:hover{background:#1565c0;transform:scale(1.05)}.letter-slot.empty{background:#fff;border:2px solid #bdbdbd;cursor:default}.letter-options-large{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;max-width:500px;margin:0 auto}.letter-option-large{background:#1976d2;border:none;width:70px;height:70px;font-size:2rem;font-weight:500;border-radius:12px;cursor:pointer;transition:all .2s ease;color:#fff;box-shadow:0 2px 8px #1976d24d}.letter-option-large:hover:not(:disabled){background:#1565c0;transform:translateY(-2px);box-shadow:0 4px 12px #1976d266}.letter-option-large:disabled{cursor:not-allowed;opacity:.6}.letter-option-large.used{opacity:.3;background:#9e9e9e;cursor:not-allowed;transform:none}.clear-btn{background:transparent;color:#f44336;border:2px solid #f44336;padding:12px 30px;font-size:1.1rem;font-weight:500;border-radius:50px;cursor:pointer;transition:all .2s ease;margin-top:20px}.clear-btn:hover{background:#f44336;color:#fff;transform:translateY(-2px)}.feedback-large{font-size:1.6rem;font-weight:500;padding:12px 24px;border-radius:12px;margin-top:20px}.feedback-large.correct{color:#2e7d32;background:#e8f5e9}.feedback-large.incorrect{color:#c62828;background:#ffebee}.speaking-area{text-align:center;padding:40px}.word-display-large{font-size:4rem;font-weight:500;color:#2d3748;margin-bottom:40px;padding:20px 40px;background:#e3f2fd;border-radius:16px;display:inline-block}.microphone-button{width:100px;height:100px;border-radius:50%;background:#1976d2;border:none;color:#fff;font-size:2.5rem;cursor:pointer;transition:all .3s ease;position:relative;box-shadow:0 4px 12px #1976d24d}.microphone-button:hover:not(:disabled){background:#1565c0;transform:translateY(-2px);box-shadow:0 6px 16px #1976d266}.microphone-button.listening{background:#f44336;animation:pulse 1.5s infinite}.mic-icon{display:inline-block}.listening-indicator{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:120px;height:120px;border:3px solid rgba(255,255,255,.3);border-radius:50%;animation:ripple 1.5s linear infinite}.transcript{margin-top:25px;font-size:1.4rem;color:#616161;font-style:italic}.speech-not-supported{padding:30px;background:#fff3cd;border-radius:12px;margin-top:20px}.speech-not-supported p{font-size:1.2rem;color:#856404;margin-bottom:15px}.skip-button{background:#ff9800;color:#fff;border:none;padding:12px 30px;font-size:1.1rem;border-radius:50px;cursor:pointer;transition:all .2s ease}.set-completion-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.set-completion-content{background:#fff;padding:60px 80px;border-radius:24px;text-align:center;position:relative;animation:bounceIn .6s ease;box-shadow:0 10px 40px #0003}.trophy-icon{font-size:6rem;margin-bottom:20px;animation:bounce 1s ease infinite}.celebration-text{font-size:3rem;color:#1976d2;margin:0 0 15px;font-weight:600}.set-complete-text{font-size:1.6rem;color:#616161;margin:0}.star-burst{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:100%;height:100%;pointer-events:none}.star{position:absolute;font-size:1.5rem;animation:starBurst 1.5s ease-out infinite}.star-1{top:0;left:50%;animation-delay:0s}.star-2{top:50%;right:0;animation-delay:.3s}.star-3{bottom:0;left:50%;animation-delay:.6s}.star-4{top:50%;left:0;animation-delay:.9s}.star-5{top:20%;right:20%;animation-delay:1.2s}.game-complete{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;text-align:center;background:#fff;padding:60px}.final-trophy{font-size:8rem;margin-bottom:30px;animation:bounce 1s ease infinite}.game-complete h1{font-size:3rem;color:#1976d2;margin-bottom:20px;font-weight:600}.complete-text{font-size:1.6rem;color:#616161;margin-bottom:15px}.score-text{font-size:1.4rem;color:#757575;margin-bottom:40px}.play-again-btn{background:#4caf50;color:#fff;border:none;padding:20px 50px;font-size:1.4rem;border-radius:50px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #4caf504d;font-weight:500}.play-again-btn:hover{background:#45a049;transform:translateY(-2px);box-shadow:0 6px 16px #4caf5066}.tree-decoration{position:absolute;width:100%;height:100%;overflow:hidden;opacity:.3}.stimulus-screen{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.stimulus-content{background:#fff;border-radius:20px;padding:60px 40px;max-width:600px;width:100%;text-align:center;box-shadow:0 20px 60px #0000004d}.stimulus-icon{font-size:80px;margin-bottom:30px;animation:pulse 2s infinite}.stimulus-content h2{font-size:32px;color:#2d3748;margin-bottom:20px}.stimulus-text{font-size:24px;color:#4a5568;margin-bottom:30px;line-height:1.5}.audio-indicator{display:flex;justify-content:center;gap:8px;margin:30px 0}.audio-wave{width:6px;height:40px;background:#667eea;border-radius:3px;animation:wave 1s ease-in-out infinite}.audio-wave:nth-child(2){animation-delay:.1s}.audio-wave:nth-child(3){animation-delay:.2s}@keyframes wave{0%,to{transform:scaleY(.5)}50%{transform:scaleY(1)}}.continue-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:15px 40px;font-size:20px;border-radius:50px;cursor:pointer;transition:all .3s ease;margin-top:20px}.continue-btn:hover:not(:disabled){transform:scale(1.05)}.continue-btn:disabled{opacity:.5;cursor:not-allowed;transform:scale(1)}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}@keyframes pulse{0%{box-shadow:0 0 #f44336b3}70%{box-shadow:0 0 0 15px #f4433600}to{box-shadow:0 0 #f4433600}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}@keyframes ripple{0%{opacity:1;transform:translate(-50%,-50%) scale(1)}to{opacity:0;transform:translate(-50%,-50%) scale(1.4)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.3)}50%{opacity:1;transform:scale(1.05)}70%{transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes starBurst{0%{opacity:0;transform:translate(-50%,-50%) scale(0)}50%{opacity:1;transform:translate(-50%,-50%) scale(1)}to{opacity:0;transform:translate(-50%,-50%) translateY(-80px) scale(0)}}.login-container{display:flex;height:100vh;width:100%}.login-background{flex:1;background:linear-gradient(135deg,#667eea,#764ba2);position:relative;overflow:hidden}.login-background:before{content:"";position:absolute;bottom:0;left:0;right:0;height:50%;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 800 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0,200 Q200,100 400,200 T800,200 L800,400 L0,400 Z' fill='%23ffffff' opacity='0.1'/%3E%3Cpath d='M0,250 Q200,180 400,250 T800,250 L800,400 L0,400 Z' fill='%23ffffff' opacity='0.15'/%3E%3C/svg%3E") no-repeat bottom;background-size:cover}.login-content{width:450px;display:flex;align-items:center;justify-content:center;background:#fff;padding:40px}.login-box{width:100%;max-width:350px}.login-logo{display:flex;justify-content:center;margin-bottom:30px}.logo-circle{width:80px;height:80px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2.5rem;color:#fff;font-weight:700;box-shadow:0 4px 20px #667eea4d}.login-title{text-align:center;font-size:1.8rem;color:#2d3748;margin:0 0 10px;font-weight:600}.login-subtitle{text-align:center;color:#718096;margin:0 0 40px;font-size:1rem}.login-form{width:100%}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;color:#4a5568;font-weight:500;font-size:.95rem}.form-input{width:100%;padding:12px 16px;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;transition:all .2s ease;background:#fff}.form-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-input::placeholder{color:#a0aec0}.error-message{color:#e53e3e;font-size:.9rem;margin-top:-10px;margin-bottom:15px;text-align:center}.login-button{width:100%;padding:14px 24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d;margin-top:10px}.login-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.login-button:active{transform:translateY(0)}@media (max-width: 768px){.login-container{flex-direction:column}.login-background{height:200px;width:100%}.login-content{width:100%;flex:1}}.loading-container,.error-container{display:flex;align-items:center;justify-content:center;height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.error-message{background:#fff;padding:40px 60px;border-radius:20px;box-shadow:0 10px 40px #0000001a;text-align:center;max-width:500px}.error-message h2{color:#e53e3e;margin-bottom:20px;font-size:2rem}.error-message p{color:#4a5568;margin-bottom:30px;font-size:1.1rem}.error-message button{background:#667eea;color:#fff;border:none;padding:12px 40px;font-size:1.1rem;border-radius:50px;cursor:pointer;transition:all .3s ease}.error-message button:hover{background:#5a67d8;transform:translateY(-2px)}.remember-phase{text-align:center;padding:2rem;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:500px}.word-card{position:relative;width:300px;height:200px;margin:0 auto 3rem;transform-style:preserve-3d;transition:transform .6s}.word-card.flipped{transform:rotateY(180deg)}.word-card-front,.word-card-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;display:flex;align-items:center;justify-content:center;border-radius:20px;box-shadow:0 4px 20px #0000001a}.word-card-front{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.word-card-back{background:linear-gradient(135deg,#f093fb,#f5576c);transform:rotateY(180deg);color:#fff}.remember-word{font-size:3rem;font-weight:700;margin:0;text-transform:lowercase}.question-mark{font-size:4rem;font-weight:700}.instruction-text{font-size:1.25rem;color:#666;margin:0}.selection-phase{text-align:center;padding:2rem}.activity-prompt{font-size:1.5rem;color:#333;margin-bottom:2rem}.word-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;max-width:600px;margin:0 auto;animation:fadeInUp .5s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.word-option{background:#fff;border:3px solid #e0e0e0;padding:1.5rem 2rem;font-size:1.5rem;border-radius:16px;cursor:pointer;transition:all .2s ease;color:#2d3748;font-weight:500;box-shadow:0 2px 8px #0000000d}.word-option:hover:not(:disabled){border-color:#90cdf4;transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.word-option.correct{background:#e8f5e9;border-color:#4caf50}.word-option.incorrect{background:#ffebee;border-color:#f44336}.word-option:disabled{cursor:not-allowed}.feedback-message{font-size:1.25rem;margin-top:1.5rem;font-weight:500;color:#4caf50}