:root{--primary: #ff6b35;--primary-dark: #e55a2b;--primary-light: #ff8a65;--secondary: #f8f9fa;--accent: #ff6b35;--success: #2ecc71;--danger: #e74c3c;--text-primary: #2c3e50;--text-secondary: #7f8c8d;--text-muted: #95a5a6;--border: #ecf0f1;--shadow: 0 8px 32px rgba(255, 107, 53, .1);--shadow-lg: 0 16px 48px rgba(255, 107, 53, .15);--radius: 16px;--radius-lg: 24px;--gradient-primary: linear-gradient(135deg, #ff6b35 0%, #ff8a65 100%);--gradient-bg: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%)}[data-theme=dark]{--primary: #ff6b35;--primary-dark: #e55a2b;--primary-light: #ff8a65;--secondary: #2c3e50;--accent: #ff6b35;--text-primary: #ecf0f1;--text-secondary: #bdc3c7;--text-muted: #95a5a6;--border: #34495e;--gradient-bg: linear-gradient(135deg, #2c3e50 0%, #34495e 100%)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.6;color:var(--text-primary);background:var(--gradient-bg);min-height:100vh;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}.app-container{min-height:100vh;display:flex;flex-direction:column;position:relative;background:var(--gradient-bg)}.app-container:before{content:"";position:fixed;inset:0;background:radial-gradient(circle at 20% 80%,rgba(255,107,53,.05) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,138,101,.05) 0%,transparent 50%),radial-gradient(circle at 40% 40%,rgba(255,107,53,.03) 0%,transparent 50%);pointer-events:none;z-index:-1}.header{position:sticky;top:0;z-index:50;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:all .3s ease}[data-theme=dark] .header{background:#2c3e50f2;border-bottom-color:var(--border)}.header-content{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.theme-toggle{position:relative;width:48px;height:24px;background:var(--border);border-radius:12px;cursor:pointer;transition:all .3s ease;border:none;padding:0}.theme-toggle:hover{background:var(--primary-light)}.theme-toggle:before{content:"☀️";position:absolute;left:4px;top:2px;font-size:12px;transition:all .3s ease}.theme-toggle:after{content:"🌙";position:absolute;right:4px;top:2px;font-size:12px;opacity:0;transition:all .3s ease}[data-theme=dark] .theme-toggle:before{opacity:0}[data-theme=dark] .theme-toggle:after{opacity:1}.theme-toggle .toggle-slider{position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:all .3s ease;box-shadow:0 2px 4px #0000001a}[data-theme=dark] .theme-toggle .toggle-slider{transform:translate(24px)}.app-title{text-align:center;flex:1}.app-title h1{margin:0;font-size:2rem;font-weight:700;color:var(--primary);text-shadow:0 2px 4px rgba(255,107,53,.2);letter-spacing:-.5px}.app-title p{margin:.25rem 0 0;font-size:.9rem;color:var(--text-secondary);font-weight:500}.nav-buttons{display:flex;gap:1rem;margin-top:1rem}.nav-btn{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:#ff6b351a;border:1px solid rgba(255,107,53,.2);border-radius:12px;color:var(--text-primary);text-decoration:none;font-weight:500;transition:all .3s ease;cursor:pointer;font-size:.9rem}.nav-btn:hover{background:#ff6b3526;border-color:#ff6b354d;transform:translateY(-1px)}.nav-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.nav-icon{font-size:1.1rem}.nav-text{font-weight:500}.sign-in-button{padding:.75rem 1.5rem;background:var(--primary);color:#fff;border:none;border-radius:12px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:.9rem}.sign-in-button:hover{background:var(--primary-dark);transform:translateY(-1px)}.main-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;min-height:calc(100vh - 200px)}.about-section{width:100%;max-width:1400px;margin:0 auto;padding:2rem}.about-container{display:flex;flex-direction:column;gap:2rem}.about-row{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.about-card{background:#ffffffe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.2);transition:all .3s ease;position:relative;overflow:hidden}[data-theme=dark] .about-card{background:#2c3e50e6;border-color:#ffffff1a}.about-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);border-radius:var(--radius-lg) var(--radius-lg) 0 0}.about-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.card-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.card-icon{width:48px;height:48px;background:var(--gradient-primary);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;box-shadow:0 4px 12px #ff6b354d}.card-header h3{margin:0;font-size:1.5rem;font-weight:700;color:var(--text-primary)}.card-content h3{margin:0 0 1rem;font-size:1.25rem;font-weight:600;color:var(--text-primary)}.hero-card.full-width{grid-column:1 / -1}.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}.hero-left{display:flex;flex-direction:column;gap:1.5rem}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#ff6b351a;border:1px solid rgba(255,107,53,.2);border-radius:20px;color:var(--primary);font-weight:600;font-size:.9rem;width:-moz-fit-content;width:fit-content}.hero-title{font-size:3rem;font-weight:800;line-height:1.1;color:var(--text-primary);margin:0;letter-spacing:-1px}.hero-description{font-size:1.1rem;line-height:1.6;color:var(--text-secondary);margin:0}.hero-right{display:flex;justify-content:center;align-items:center}.impact-highlight{text-align:center;padding:2rem;background:#ff6b350d;border-radius:20px;border:1px solid rgba(255,107,53,.1);min-width:200px}.highlight-number{font-size:4rem;font-weight:900;color:var(--primary);line-height:1;margin:0}.highlight-text{font-size:1rem;color:var(--text-secondary);margin:.5rem 0 0;line-height:1.4}.problem-stats{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem}.problem-message{padding:1.5rem;background:#e74c3c0d;border-radius:12px;border-left:4px solid var(--danger)}.problem-message p{margin:0;font-size:1rem;line-height:1.6;color:var(--text-primary)}.solution-features{display:flex;flex-direction:column;gap:1.5rem}.solution-feature{display:flex;align-items:flex-start;gap:1rem;padding:1.5rem;background:#ff6b350d;border-radius:12px;border:1px solid rgba(255,107,53,.1);transition:all .3s ease;position:relative;overflow:hidden}.solution-feature:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--primary);border-radius:0 2px 2px 0}.solution-feature:hover{background:#ff6b3514;transform:translate(4px);box-shadow:0 4px 12px #ff6b3526}.solution-feature .feature-icon{width:48px;height:48px;background:var(--primary);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:#fff;flex-shrink:0;box-shadow:0 4px 12px #ff6b354d}.solution-feature .feature-text{flex:1}.solution-feature .feature-text h4{margin:0 0 .5rem;font-size:1.2rem;font-weight:600;color:var(--text-primary)}.solution-feature .feature-text p{margin:0;font-size:1rem;color:var(--text-secondary);line-height:1.5}.testimonial{display:flex;flex-direction:column;height:100%;justify-content:center}.quote-icon{font-size:3rem;color:var(--primary);opacity:.3;margin-bottom:1rem}.testimonial-text{font-size:1.1rem;line-height:1.6;color:var(--text-primary);margin:0 0 1.5rem;font-style:italic}.testimonial-author{font-weight:600;color:var(--primary);font-size:.95rem}.vision-text{display:flex;flex-direction:column;height:100%;justify-content:space-between}.vision-text p{font-size:1.1rem;line-height:1.6;color:var(--text-primary);margin:0 0 2rem}.call-to-action{margin-top:auto}.cta-text{font-size:1.2rem;font-weight:700;color:var(--primary);text-align:center;margin:0}.impact-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-bottom:2rem}.impact-features{display:flex;flex-direction:column;gap:1rem}.impact-feature{display:flex;align-items:center;gap:1rem;padding:1rem;background:#ff6b350d;border-radius:12px;transition:all .3s ease}.impact-feature:hover{background:#ff6b3514}.impact-feature .feature-icon{width:32px;height:32px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1rem;color:#fff}.impact-feature .feature-text h4{margin:0 0 .25rem;font-size:1rem;font-weight:600;color:var(--text-primary)}.impact-feature .feature-text p{margin:0;font-size:.9rem;color:var(--text-secondary)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-top:2rem}.feature-item{background:#fffc;border-radius:16px;padding:1.5rem;text-align:center;transition:all .3s ease;border:1px solid rgba(255,255,255,.3)}.feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.feature-icon{width:60px;height:60px;background:var(--gradient-primary);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff;margin:0 auto 1rem;box-shadow:0 4px 16px #ff6b354d}.feature-text h4{margin:0 0 .5rem;font-size:1.2rem;font-weight:600;color:var(--text-primary)}.feature-text p{margin:0;font-size:.95rem;color:var(--text-secondary);line-height:1.5}.project-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin:2rem 0}.stat-item{text-align:center;padding:1.5rem;background:#fffc;border-radius:16px;transition:all .3s ease;border:1px solid rgba(255,255,255,.3)}.stat-item:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.stat-number{font-size:2.5rem;font-weight:800;color:var(--primary);margin:0;line-height:1}.stat-label{font-size:.9rem;color:var(--text-secondary);margin:.5rem 0 0;font-weight:500}.project-description p{font-size:1.1rem;line-height:1.7;color:var(--text-secondary);margin:0}.voice-assistant{max-width:800px;width:100%;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-lg);padding:3rem;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.2);text-align:center;position:relative;overflow:hidden}[data-theme=dark] .voice-assistant{background:#2c3e50f2;border-color:#ffffff1a}.voice-assistant:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);border-radius:var(--radius-lg) var(--radius-lg) 0 0}.voice-assistant:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.instruction-panel{margin-bottom:3rem}.instruction-panel h2{font-size:2.5rem;font-weight:700;color:var(--text-primary);margin:0 0 1rem;letter-spacing:-.5px}.instruction-text{font-size:1.1rem;color:var(--text-secondary);margin:0 0 2rem;line-height:1.6}.example-container{display:flex;justify-content:center;gap:1rem;margin:2rem 0;flex-wrap:wrap}.example-icon{font-size:1.2rem;animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.example{padding:.5rem 1rem;background:#ff6b351a;border-radius:20px;font-size:.9rem;color:var(--primary);font-weight:500}.microphone-button{margin:2rem 0}.mic-button{width:120px;height:120px;border-radius:50%;border:none;background:var(--gradient-primary);color:#fff;font-size:3rem;cursor:pointer;transition:all .3s ease;position:relative;box-shadow:var(--shadow)}.mic-button:disabled{opacity:.6;cursor:not-allowed}.mic-button:not(:disabled):hover{transform:scale(1.05);box-shadow:var(--shadow-lg)}.mic-button:not(:disabled):active{transform:scale(.95)}.mic-circle{width:120px;height:120px;border-radius:50%;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;position:relative;box-shadow:var(--shadow);margin:0 auto}.mic-circle:before{content:"";position:absolute;inset:-4px;border-radius:50%;background:var(--gradient-primary);opacity:.3;z-index:-1}.mic-icon{font-size:3rem;color:#fff}.pulse-ring{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:140px;height:140px;border:2px solid var(--primary);border-radius:50%;animation:pulse-ring 2s infinite}@keyframes pulse-ring{0%{transform:translate(-50%,-50%) scale(.8);opacity:1}to{transform:translate(-50%,-50%) scale(1.2);opacity:0}}.mic-circle:hover{transform:scale(1.05);box-shadow:var(--shadow-lg)}.loading-spinner{width:40px;height:40px;border:4px solid rgba(255,107,53,.2);border-top:4px solid var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.status-container{margin:1rem 0}.status-indicator{display:flex;align-items:center;justify-content:center;gap:.5rem;margin:1rem 0}.status-dot{width:12px;height:12px;border-radius:50%;background:var(--text-muted);transition:all .3s ease}.status-dot.ready{background:var(--success)}.status-dot.listening{background:var(--primary);animation:pulse 1s infinite}.status-text{font-size:1rem;color:var(--text-secondary);font-weight:500}.transcript-display,.response-display{background:#ffffffe6;border-radius:16px;padding:1.5rem;margin:1rem 0;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.3);text-align:left}[data-theme=dark] .transcript-display,[data-theme=dark] .response-display{background:#2c3e50e6;border-color:#ffffff1a}.transcript-display:hover,.response-display:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.display-header{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem;font-weight:600;color:var(--primary)}.display-icon{font-size:1.2rem}.display-label{font-size:1rem;font-weight:600;color:var(--primary);margin:0}.display-content{font-size:1rem;line-height:1.6;color:var(--text-primary);margin:0}[data-theme=dark] .display-content{color:var(--text-primary)}.replay-button{margin:1rem 0}.replay-btn{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:var(--primary);color:#fff;border:none;border-radius:12px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:.95rem;margin:0 auto}.replay-btn:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px)}.replay-btn:disabled{opacity:.6;cursor:not-allowed}.replay-icon{font-size:1.1rem;animation:spin-slow 2s linear infinite}@keyframes spin-slow{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.replay-text{font-weight:500}.error-display{background:#e74c3c1a;border:1px solid rgba(231,76,60,.2);border-radius:12px;padding:1rem;margin:1rem 0;display:flex;align-items:center;gap:.5rem;color:var(--danger)}.error-icon{font-size:1.2rem;animation:shake .5s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.footer{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--border);padding:1rem 0;margin-top:auto}[data-theme=dark] .footer{background:#2c3e50f2;border-top-color:var(--border)}.footer-content{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.version{font-size:.9rem;color:var(--text-muted);font-weight:500}.language-toggle{display:flex;align-items:center;gap:1rem}.language-label{font-size:.9rem;color:var(--text-secondary);font-weight:500}.language-buttons{display:flex;gap:.5rem}.lang-btn{padding:.5rem 1rem;background:#ff6b351a;border:1px solid rgba(255,107,53,.2);border-radius:8px;color:var(--text-primary);cursor:pointer;transition:all .3s ease;font-size:.85rem;font-weight:500}.lang-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.lang-btn:not(.active):hover{background:#ff6b3526;border-color:#ff6b354d}.lesson-card{background:#fffffff2;border-radius:16px;padding:2rem;margin:1rem 0;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.3);text-align:left}.lesson-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.lesson-card h3{color:var(--primary);margin:0 0 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.feature-text p{font-size:.95rem}.quote-icon{font-size:2rem}.testimonial-text,.vision-text p{font-size:.95rem}.cta-text{font-size:1rem}.footer-content{flex-direction:column;gap:1rem;padding:1rem;text-align:center}.language-toggle{flex-direction:column;gap:.5rem}.language-buttons{justify-content:center}}@media (max-width: 480px){.header-content{padding:.75rem}.app-title h1{font-size:1.5rem}.nav-buttons{flex-direction:column;width:100%}.nav-btn{width:100%;justify-content:center}.voice-assistant{padding:1.5rem 1rem;margin:0}.instruction-panel h2{font-size:1.75rem}.mic-circle{width:80px;height:80px}.mic-icon{font-size:2rem}.pulse-ring{width:100px;height:100px}.about-section{padding:.5rem}.about-card{padding:1rem}.hero-title{font-size:1.75rem}.hero-description{font-size:.95rem}.highlight-number{font-size:2.5rem}.card-header{flex-direction:column;text-align:center;gap:.5rem}.card-icon{width:40px;height:40px;font-size:1.2rem}.card-header h3{font-size:1.2rem}.problem-stats{grid-template-columns:1fr}.solution-features{gap:.75rem}.solution-feature{flex-direction:column;text-align:center;gap:.75rem;padding:1rem}.solution-feature .feature-icon{margin:0 auto;width:44px;height:44px;font-size:1.3rem}.solution-feature .feature-text h4{font-size:1.1rem}.solution-feature .feature-text p{font-size:.9rem}.quote-icon{font-size:1.5rem}.testimonial-text,.vision-text p{font-size:.9rem}.cta-text{font-size:.95rem}.footer-content{padding:.75rem}.language-buttons{flex-direction:column;width:100%}.lang-btn{width:100%;text-align:center}}html{scroll-behavior:smooth}button:focus,input:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:2px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.voice-assistant,.about-card{animation:fadeInUp .6s ease-out}