*{box-sizing:border-box;margin:0;padding:0}body{color:#333;background-color:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif}.menu ul{gap:20px;margin:0;padding:0;list-style:none;display:flex}.menu a{color:inherit;text-decoration:none}.header{border-bottom:1px solid #ddd;justify-content:space-between;align-items:center;padding:15px 30px;display:flex}.logo{font-size:1.2rem;font-weight:700}.footer{text-align:center;border-top:1px solid #ddd;margin-top:auto;padding:20px}.home-page{text-align:center;padding:40px 20px}.app{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1}