* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #c8e09a;
  color: #111;
}

header,
main,
footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  margin: 0 0 8px;
  font-size: 42px;
  letter-spacing: -1px;
}

.tag {
  margin: 0 0 8px;
}

.price {
  display: inline-block;
  margin: 0;
  padding: 4px 8px;
  background: #111;
  color: #ff0;
  font-weight: bold;
}

form {
  display: grid;
  gap: 12px;
  margin: 20px 0;
  padding: 12px;
  border: 4px solid #111;
  background: #fff;
}

label {
  display: grid;
  gap: 4px;
  font-weight: bold;
}

input,
select,
button {
  font: inherit;
  padding: 8px;
}

button {
  background: #1b5e20;
  color: #fff;
  border: 3px solid #111;
  cursor: pointer;
  font-weight: bold;
}

button:disabled {
  background: #666;
  cursor: not-allowed;
}

.error {
  color: #7f0000;
  font-weight: bold;
}

.note {
  background: #fff3cd;
  border: 2px solid #111;
  padding: 8px;
}

.block {
  border: 3px solid #111;
  background: #fff;
  padding: 12px;
  margin: 12px 0;
}

.block h3 {
  margin: 0 0 8px;
}

.mins {
  float: right;
  background: #111;
  color: #fff;
  padding: 2px 6px;
  font-size: 14px;
}

ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

.pay {
  margin-top: 24px;
  padding: 12px;
  border: 4px dashed #111;
  background: #ffe082;
}

.stub {
  font-weight: bold;
  min-height: 1.2em;
}

footer {
  font-size: 13px;
  color: #333;
}