body{margin:0;font-family:sans-serif;line-height:1.5}#app-container{max-width:1200px;min-width:450px;margin:0 auto;padding:0 1rem;display:flex;flex-direction:column;gap:1rem}header,footer{background:#fff;padding:1rem;text-align:center}nav{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:.5rem 0;background:#d3d3d3}p,button{font-size:clamp(1rem,2vw,1.2rem)}button{padding:.5rem 1rem;cursor:pointer}#quiz-container{max-width:600px;min-width:300px;min-height:12em;margin:2rem auto;padding:1rem;border-radius:4px;border:1px solid lightgray;background:#fff;display:flex;flex-direction:column;justify-content:space-between}#question-area{flex-grow:1}#quiz-buttons{display:flex;justify-content:space-between;margin-top:1rem}#quiz-buttons button{padding:.5rem 1rem;font-size:1rem}h1{font-size:clamp(1.5rem,4vw,2.5rem)}h2{font-size:clamp(1.2rem,3vw,2rem);margin-left:1rem}