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.2s;background:white;border:2px solid var(--border-color);color:var(--text-secondary)}.question-indicator:hover{border-color:var(--primary-color);color:var(--primary-color)}.question-indicator.answered{background:var(--success-color);border-color:var(--success-color);color:#fff}.question-indicator.current{background:var(--primary-color);border-color:var(--primary-color);color:#fff;transform:scale(1.1)}.quiz-instructions{background:rgba(37,99,235,.1);border:1px solid rgba(37,99,235,.2);border-radius:8px;padding:1rem;font-size:.9rem;color:var(--text-secondary);text-align:center}.quiz-instructions strong{color:var(--text-primary)}.chat-container{max-width:800px;margin:0 auto;height:calc(100vh - 200px);display:flex;flex-direction:column;background:white;border-radius:12px;box-shadow:0 4px 20px #0000001a;overflow:hidden}.chat-messages{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:1rem;white-space:pre-line}.welcome-message{text-align:center;padding:2rem;color:var(--text-secondary)}.welcome-message h2{color:var(--text-primary);margin-bottom:1rem}.welcome-message ul{text-align:left;display:inline-block;margin:1rem 0 0;padding-left:1.5rem}.welcome-message li{margin-bottom:.5rem}.chat-input-form{border-top:1px solid var(--border-color);padding:1rem;background:white}.input-container{display:flex;gap:.5rem;align-items:center}.chat-input{flex:1;padding:.75rem 1rem;border:2px solid var(--border-color);border-radius:25px;font-size:1rem;outline:none;transition:border-color .2s}.chat-input:focus{border-color:var(--primary-color)}.send-button{width:50px;height:50px;border:none;border-radius:50%;background:var(--primary-color);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:background-color .2s,transform .1s}.send-button:hover:not(:disabled){background:#1d4ed8;transform:scale(1.05)}.send-button:disabled{background:var(--secondary-color);cursor:not-allowed;transform:none}.App{min-height:100vh;display:flex;flex-direction:column}:root{--primary-color: #2563eb;--secondary-color: #64748b;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--background-color: #f8fafc;--surface-color: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0}*{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-color:var(--background-color);color:var(--text-primary);line-height:1.6}.app-header{background:linear-gradient(135deg,var(--primary-color),#1d4ed8);color:#fff;padding:2rem 1rem;text-align:center;box-shadow:0 2px 10px #0000001a}.app-header h1{margin:0 0 .5rem;font-size:2.5rem;font-weight:700}.app-header p{margin:0;font-size:1.1rem;opacity:.9}main{max-width:1200px;margin:0 auto;padding:2rem 1rem}