:root {
  font:
    18px/1.6 system-ui,
    sans-serif;
  color: #0f3464;
  background: #fff;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
main {
  max-width: 50rem;
  margin: auto;
  padding: 1.2rem;
}
h1 {
  font-size: 1.8rem;
  line-height: 1.2;
}
h2 {
  font-size: 1.3rem;
}
input,
button,
select,
textarea {
  font: inherit;
  max-width: 100%;
}
label {
  display: block;
  margin-top: 0.6rem;
}
input:not([type="checkbox"]),
select {
  display: block;
  padding: 0.35rem;
}
button {
  margin: 0.35rem 0.35rem 0.35rem 0;
  padding: 0.4rem 0.8rem;
  background: #034fa0;
  color: white;
  border: 1px solid #034fa0;
  border-radius: 0.25rem;
}
button:disabled {
  opacity: 0.6;
}
output {
  display: block;
  margin-top: 0.5rem;
}
article,
section {
  border: 1px solid #a7bad1;
  padding: 0.75rem;
  margin-block: 0.75rem;
}
nav {
  display: flex;
  gap: 1rem;
}
a {
  color: #034fa0;
}
:focus-visible {
  outline: 3px solid #0078d4;
  outline-offset: 3px;
}
.available {
  border: solid #0078d4;
}
.desk-card {
  border: 1px solid #0078d4;
  padding: 12px;
}
:root[data-theme="dark"] {
  background: #061d30;
  color: #d6e7fb;
  color-scheme: dark;
}
:root[data-theme="dark"] a {
  color: #8ecbff;
}