:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #16181d;
  --muted: #5d6470;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --border: #dde1e7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #181b21;
    --text: #e8eaed;
    --muted: #9aa1ac;
    --accent: #4f8cff;
    --border: #2a2f37;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.5 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
}
.card {
  width: 100%;
  max-width: 520px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}
h1 {
  margin: 0 0 8px;
  font-size: 1.6rem;
}
.muted {
  color: var(--muted);
}
.lang {
  float: right;
  display: flex;
  gap: 4px;
}
.lang button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  padding: 2px 8px;
  cursor: pointer;
}
.lang button[aria-pressed='true'] {
  color: var(--text);
  border-color: var(--accent);
}
.download {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 600;
}
.meta {
  font-size: 0.9rem;
}
details {
  margin-top: 20px;
}
#notes {
  white-space: pre-wrap;
  margin-top: 8px;
}