body{font-family:Arial,sans-serif;background-color:#020202;margin:0;padding:0}header{padding:1rem;background-color:#282c34;color:white}header a{color:white;text-decoration:none;margin-right:1rem;font-weight:700}header a:hover{text-decoration:underline}main{max-width:1000px;margin:2rem auto;padding:1rem;background-color:white;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.1)}ul{list-style:none;padding:0}li{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;padding:.5rem;border:1px solid #ccc;border-radius:5px}li span{flex:1 1;cursor:pointer}li button{margin-left:1rem;background-color:#e74c3c;color:white;border:none;padding:.3rem .6rem;border-radius:3px;cursor:pointer;transition:background-color .2s ease}li button:hover{background-color:#c0392b}form{display:flex;flex-direction:column}form input,form select{padding:.5rem;margin-bottom:1rem;border:1px solid #ccc;border-radius:4px}form button{padding:.5rem;background-color:#3498db;color:white;border:none;border-radius:4px;cursor:pointer;transition:background-color .2s ease}form button:hover{background-color:#2980b9}h1{text-align:center;margin-bottom:1.5rem}