:root{font-family:Poppins,sans-serif;line-height:1.5;font-weight:400}body{margin:0;min-width:320px;min-height:100vh}h1{font-size:2.2em;line-height:1.1}.challenge-banner{position:relative;padding:20px;height:1000px;transition:background-color .5s ease;overflow:hidden}.wave{background:#ffffff40;border-radius:1000% 1000% 0 0;position:absolute;width:200%;height:12em;animation:wave 10s -3s linear infinite;transform:translateZ(0);opacity:.8;bottom:0;left:0}.wave:nth-of-type(2){bottom:-1.25em;animation:wave 18s linear reverse infinite;opacity:.8}.wave:nth-of-type(3){bottom:-2.5em;animation:wave 20s -1s reverse infinite;opacity:.9}@keyframes wave{2%{transform:translate(1)}25%{transform:translate(-25%)}50%{transform:translate(-50%)}75%{transform:translate(-25%)}to{transform:translate(1)}}.challenge-text{display:flex;flex-direction:column;font-family:Poppins,sans-serif;font-weight:900;font-style:normal;font-size:30px;height:100%}.toggle-container{display:inline-flex;background-color:transparent;border:2px solid rgba(255,255,255,.4);border-radius:6px;overflow:hidden}input[type=radio]{display:none}.toggle-label{display:flex;align-items:center;gap:8px;padding:10px 20px;color:#fffc;background-color:transparent;font-weight:600;cursor:pointer;position:relative;font-size:16px;transition:all .2s ease}.toggle-label i{font-size:18px}input[type=radio]:checked+.toggle-label{color:#fff}input[type=radio]:checked+.toggle-label:after{content:"";position:absolute;bottom:0;left:15%;width:70%;height:4px;background-color:#fff;border-radius:2px}.toggle-label:hover{background-color:#ffffff0d}button{display:flex;align-items:center;gap:8px;padding:10px 20px;color:#fffc;background-color:transparent;font-weight:600;cursor:pointer;position:relative;font-size:16px;border:2px solid rgba(255,255,255,.3);border-radius:6px;transition:all .2s ease}button:hover{background-color:#ffffff1a;border-color:#fff9;color:#fff}footer{background-color:#ffffff0d;border-top:2px solid rgba(255,255,255,.2);color:#000;text-align:center;padding:1rem;font-size:14px}@media only screen and (max-width: 768px){.challenge-text{font-size:20px}.toggle-container{font-size:6px}button,.toggle-label{font-size:12px}}