:root {
  color-scheme: light dark;
  --bg: #fbfaf8;
  --surface: #ffffff;
  --text: #1d1f21;
  --muted: #5b6168;
  --line: #dcdcd8;
  --accent: #1f5f8b;
  --accent-text: #ffffff;
  --danger: #a61b1b;
  --ok: #1d6b3a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151719;
    --surface: #1d2023;
    --text: #e8e8e6;
    --muted: #a4a9ae;
    --line: #34383c;
    --accent: #6aa9d6;
    --accent-text: #0d1b25;
    --danger: #f08080;
    --ok: #7fcf9b;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow-wrap: anywhere;
}
header, main { max-width: 40rem; margin: 0 auto; padding: 0 16px; }
header { padding-top: 32px; }
h1 { font-size: 1.75rem; margin: 0 0 4px; }
header p { margin: 0 0 24px; color: var(--muted); }
section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}
h2 { font-size: 1.2rem; margin: 0 0 12px; }
h3 { font-size: 1.05rem; margin: 0 0 8px; }
p { margin: 0 0 12px; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0 0 12px; }
dt { color: var(--muted); }
dd { margin: 0; }
ul { list-style: none; margin: 0 0 12px; padding: 0; }
li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); }
li:last-child { border-bottom: 0; }
.app { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 12px; }
.app:first-child { border-top: 0; padding-top: 0; margin-top: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
button {
  font: inherit;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
}
button.secondary { background: transparent; color: var(--accent); }
button.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
button:disabled { opacity: 0.5; cursor: default; }
label { display: block; margin-bottom: 4px; }
input {
  font: inherit;
  width: 100%;
  max-width: 16rem;
  min-height: 44px;
  padding: 8px;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.secret { display: block; font-size: 1.1rem; padding: 12px; margin: 0 0 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; letter-spacing: 0.05em; }
.qr { display: block; width: 200px; height: 200px; margin: 0 0 12px; background: #fff; image-rendering: pixelated; }
.muted { color: var(--muted); }
.ok { color: var(--ok); }
.error { color: var(--danger); }
.msg:empty { margin: 0; }