body{margin:0;padding:0;background:#0d1117;color:#fff;font-family:Inter,sans-serif}button,input{font-family:inherit}input{padding:12px;width:100%;border-radius:6px;border:1px solid #444;margin-bottom:15px;background:#161b22;color:#fff}input:focus{outline:none;border-color:#17a2b8}button{width:100%;padding:12px;background-color:#17a2b8;border:none;color:#fff;font-size:16px;font-weight:700;cursor:pointer;border-radius:6px;transition:background-color .2s ease}button:hover{background-color:#138496}