:root {
  color-scheme: light dark;
  --text: #1d2125;
  --muted: #5c6670;
  --background: #f4f5f7;
  --surface: #ffffff;
  --border: #d5d9de;
  --accent: #0b5cad;
  --code: #eef1f4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6e8eb;
    --muted: #a1a9b2;
    --background: #15181b;
    --surface: #1e2226;
    --border: #3a4047;
    --accent: #7db7f0;
    --code: #262b30;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 16px;
  background: var(--background);
  color: var(--text);
  font:
    16px/1.5 system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
}

main {
  max-width: 760px;
  margin: 24px auto 48px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

nav {
  max-width: 760px;
  margin: 16px auto 0;
  font-size: 14px;
}

a {
  color: var(--accent);
}

h1 {
  margin-top: 0;
  font-size: 1.6rem;
}

h2 {
  margin-top: 2rem;
  font-size: 1.2rem;
}

.result {
  padding: 16px;
  border: 1px dashed var(--border);
  border-radius: 6px;
}

pre {
  overflow-x: auto;
  padding: 12px;
  background: var(--code);
  border-radius: 6px;
  font-size: 13px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

label {
  display: block;
  margin-top: 12px;
  font-weight: 600;
}

fieldset label {
  display: inline;
  margin-right: 12px;
  font-weight: normal;
}

fieldset {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

input[type="text"],
textarea,
select {
  width: 100%;
  max-width: 420px;
  padding: 6px;
  font: inherit;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

img {
  vertical-align: middle;
}

.status {
  color: var(--muted);
  font-style: italic;
}

.error {
  color: #c0392b;
}
tr.selected td {
  background: var(--code);
}