:root{font-family:system-ui,sans-serif;color:#302d28;background:#f7f3eb}body{max-width:42rem;margin:3rem auto;padding:0 1.5rem;line-height:1.65}h1{line-height:1.2;font-family:Georgia,serif;font-weight:500}a{color:#72523c}nav{display:flex;gap:1rem;flex-wrap:wrap}button{padding:.8rem 1.2rem;border:0;border-radius:.5rem;background:#596d55;color:white;font:inherit}input{display:block;padding:.7rem;width:90%;font:inherit}label{display:block;margin:1rem 0}.notice{border-left:3px solid #a06b50;padding-left:1rem}footer{margin-top:3rem;color:#736958}