.start-screen{animation:fadeIn .5s ease-in}.card{background:#fff;border-radius:20px;padding:40px;box-shadow:0 20px 60px #0000004d;text-align:center}.brain-emoji{font-size:80px;margin-bottom:20px;animation:bounce 2s infinite}h1{font-size:2.5rem;color:#333;margin-bottom:10px}.subtitle{color:#666;font-size:1.1rem;margin-bottom:30px}.input{width:100%;padding:15px 20px;font-size:1rem;border:2px solid #e0e0e0;border-radius:10px;margin-bottom:20px;transition:border-color .3s}.input:focus{outline:none;border-color:#667eea}.btn{padding:15px 30px;font-size:1.1rem;border:none;border-radius:10px;font-weight:600;transition:all .3s}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;width:100%}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 20px #667eea66}.warning{margin-top:20px;color:#ff6b6b;font-size:.9rem;font-style:italic}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.quiz{animation:fadeIn .5s ease-in}.progress-bar{width:100%;height:8px;background:#e0e0e0;border-radius:10px;overflow:hidden;margin-bottom:20px}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);transition:width .3s ease}.question-counter{color:#666;font-size:.9rem;margin-bottom:20px;font-weight:500}.question-emoji{font-size:60px;margin-bottom:20px}.question-text{font-size:1.5rem;color:#333;margin-bottom:30px;line-height:1.4}.options{display:flex;flex-direction:column;gap:15px}.option-btn{padding:18px 24px;font-size:1rem;background:#fff;border:2px solid #e0e0e0;border-radius:12px;text-align:left;transition:all .3s;font-weight:500}.option-btn:hover{border-color:#667eea;background:#f8f9ff;transform:translate(5px)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.results{animation:fadeIn .5s ease-in}.result-card{background:linear-gradient(135deg,#667eea,#764ba2);padding:40px;border-radius:15px;color:#fff;margin-bottom:20px}.result-header h1{font-size:1.5rem;margin-bottom:10px;color:#fff}.username-display{font-size:1.2rem;opacity:.9;margin-bottom:30px}.score-display{margin:30px 0}.score-number{font-size:5rem;font-weight:700;line-height:1;text-shadow:0 4px 10px rgba(0,0,0,.2)}.score-label{font-size:1.2rem;margin-top:10px;opacity:.9}.result-emoji{font-size:80px;margin:20px 0}.result-title{font-size:2rem;margin-bottom:15px;color:#fff}.result-description{font-size:1.1rem;line-height:1.6;opacity:.95;margin-bottom:30px}.result-bar{width:100%;height:20px;background:#ffffff4d;border-radius:10px;overflow:hidden}.result-bar-fill{height:100%;border-radius:10px;transition:width 1s ease-out}.action-buttons{display:flex;gap:15px;margin-bottom:20px}.btn-share,.btn-restart{flex:1;background:#fff;color:#667eea;border:2px solid #667eea}.btn-share:hover,.btn-restart:hover{background:#667eea;color:#fff;transform:translateY(-2px)}.disclaimer{text-align:center;color:#666;font-size:.9rem;font-style:italic}@keyframes fadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.app{width:100%}*{margin:0;padding:0;box-sizing:border-box}body{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:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}#root{width:100%;max-width:600px}button{cursor:pointer;font-family:inherit}button:disabled{cursor:not-allowed;opacity:.6}