body{
  font-family:Arial, Helvetica, sans-serif;
  max-width:760px;
  margin:36px auto;
  padding:0 12px 54px;
  color:#000;
  background:#fff;
  line-height:1.55;
}
header{
  border-bottom:1px solid #000;
  padding-bottom:14px;
  margin-bottom:30px;
}
.logo{
  font-size:34px;
  font-weight:bold;
  color:#000;
  text-decoration:none;
  letter-spacing:-1.5px;
}
.tagline{
  color:#444;
  margin-top:2px;
}
nav{
  margin-top:10px;
  font-size:14px;
}
nav a{
  color:#00e;
  margin-right:12px;
}
h1{
  font-size:42px;
  line-height:1.05;
  letter-spacing:-2px;
  margin:0 0 12px;
}
h2{
  font-size:22px;
  border-bottom:1px solid #ddd;
  padding-bottom:5px;
  margin:34px 0 10px;
}
h3{
  font-size:19px;
  margin:0 0 5px;
}
p{margin:0 0 12px}
a{color:#00e}
ul{padding-left:20px}
li{margin-bottom:5px}
.box{
  border:1px solid #000;
  background:#fafafa;
  padding:12px;
  margin:18px 0;
}
.grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
}
.card{
  border:1px solid #000;
  padding:12px;
  background:#fff;
}
label{
  display:block;
  font-weight:bold;
  margin-top:12px;
}
input,textarea{
  width:100%;
  box-sizing:border-box;
  border:1px solid #000;
  padding:9px;
  font:inherit;
  margin:6px 0 10px;
}
textarea{min-height:90px}
button,.button{
  border:1px solid #000;
  background:#000;
  color:#fff;
  padding:8px 10px;
  font:inherit;
  text-decoration:none;
  display:inline-block;
  cursor:pointer;
}
.button.secondary,button.secondary{
  background:#fff;
  color:#000;
}
.output{
  border:1px solid #000;
  background:#fafafa;
  padding:10px;
  min-height:90px;
  white-space:pre-wrap;
}
footer{
  border-top:1px solid #000;
  margin-top:42px;
  padding-top:12px;
  color:#555;
  font-size:14px;
}
.sale{
  font-size:12px;
  color:#777;
}
.sale a{color:#555}
@media(max-width:700px){
  body{margin-top:24px}
  h1{font-size:34px}
  .logo{font-size:30px}
  .grid{grid-template-columns:1fr}
}

.form-message{
  display:none;
  border:1px solid #000;
  background:#fafafa;
  padding:10px;
  margin:12px 0;
}
.form-error{color:#900}