:root {
  --font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;

  --text: #000;
  --muted: #555;
  --button: #007acc;
  --button-hover: #005f99;

  --background: #e1fdff;
  --main-background: #fff;
  --border: #ccc;
  --footer-background: #f0f0f0;
  --footer-link: #0070bd;
}

body {
  font-family: var(--font-family);
  margin: 0;
  color: var(--text, #000);
  background-color: var(--background);
  padding: 1rem;
  padding-bottom: 3.5rem; /* space for fixed footer */
}

main {
  max-width: 800px;
  background: var(--main-background);
  border: 1px solid var(--border);
  border-radius: 15px;
  padding: 1.5rem;
  box-shadow: 8px 8px 15px rgba(0, 0, 0, 0.2);
}

h1 {
  margin-top: 0;
  margin-bottom: 0.4rem;
  font-size: 1.5rem;
}

h2 {
  margin-top: 1.5rem;
  margin-bottom: 0.4rem;
  font-size: 1.25rem;
}

p {
  margin-top: 0;
  color: var(--muted);
}

.hidden {
  display: none;
}

input,
button,
a.button {
  font: inherit;
}

form {
  margin-bottom: 1rem;
}

form > fieldset {
  border-radius: 5px;
  border: 1px solid var(--border);
  margin: 0;
  margin-bottom: 1rem;
  padding-bottom: 0;
}

form > fieldset > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem 1rem;
  align-items: center;
  margin-bottom: 0.75rem;
}

form > div.button-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

form button,
a.button {
  border: 0;
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--button);
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 150ms ease;
}

form button:focus-visible,
a.button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--button);
  outline-offset: 2px;
}

input:focus-visible,
select:focus-visible {
  border-radius: 1px;
}

form button:hover,
form button:focus-visible,
a.button:hover,
a.button:focus-visible {
  background-color: var(--button-hover);
}

@media (min-width: 450px) {
  form > fieldset > div {
    grid-template-columns: 10rem minmax(8rem, 1fr);
  }

  form > div.button-row {
    grid-template-columns: 1fr 1fr;
  }
}

svg {
  max-width: 100%;
  height: auto;
  background-color: var(--main-background);
}

a#downloadLink {
  margin-top: 0.5rem;
}

table caption {
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-align: center;
}

table {
  border-collapse: collapse;
  margin-top: 0.5rem;
}

table thead {
  font-weight: 600;
  border-bottom: 3px solid var(--border);
}

table th,
table td {
  border: 1px solid var(--border);
  padding: 0.5rem;
  text-align: right;
}

.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 0.5rem;
  background: var(--footer-background);
  border-top: 1px solid var(--border);
}

.site-footer a {
  color: var(--footer-link);
  text-decoration: none;
  font-weight: 700;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}