:root {
  --bg: #f4f4f1;
  --surface: #ffffff;
  --fg: #1a1a19;
  --muted: #66665f;
  --line: #dcdcd5;
  --accent: #1d5fd1;
  --accent-fg: #ffffff;
  --ok: #1f7a3a;
  --warn: #9a5208;
  --error: #b42318;
  --danger-bg: #fdf0ee;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --surface: #1b1b1a;
    --fg: #ececea;
    --muted: #9b9b94;
    --line: #313130;
    --accent: #6ea1ff;
    --accent-fg: #0b1220;
    --ok: #5cc27e;
    --warn: #e5a04a;
    --error: #ff7b72;
    --danger-bg: #2a1716;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 48px 16px 32px;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}

main { max-width: 36rem; margin: 0 auto; }

h1 { font-size: 2.25rem; line-height: 1.1; margin: 0 0 0.5rem; letter-spacing: -0.02em; }
h2 { font-size: 1.1rem; margin: 0 0 0.25rem; }
.lede { margin: 0 0 2rem; color: var(--muted); font-size: 1.05rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
}
.meta { margin: 0 0 1.25rem; color: var(--muted); font-size: 0.95rem; }

button {
  font: inherit;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--fg);
  padding: 10px 18px;
  cursor: pointer;
}
button:disabled { opacity: 0.45; cursor: default; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.primary {
  width: 100%;
  padding: 16px 24px;
  font-size: 1.1rem;
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
button.danger { background: var(--error); border-color: var(--error); color: var(--surface); }

.bar {
  height: 6px;
  margin-top: 16px;
  border-radius: 3px;
  background: var(--line);
  overflow: hidden;
}
.bar > div { height: 100%; width: 0; background: var(--accent); transition: width 0.2s; }
.bar.busy > div { width: 30%; animation: slide 1.2s ease-in-out infinite; }
@keyframes slide { from { transform: translateX(-100%); } to { transform: translateX(340%); } }

#status { margin: 1rem 0 0; min-height: 1.55em; }
#status:empty { display: none; }
#status.ok { color: var(--ok); font-weight: 600; }
#status.warn { color: var(--warn); }
#status.error { color: var(--error); }

.confirm {
  margin-top: 16px;
  padding: 16px;
  border-radius: 10px;
  background: var(--danger-bg);
}
.confirm p { margin: 0 0 12px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.more { margin-top: 16px; }
.more summary { cursor: pointer; color: var(--muted); padding: 4px 0; }
.more ul { margin: 8px 0 0; padding-left: 1.25rem; }
.more li { margin: 4px 0; }
pre {
  margin: 8px 0 0;
  padding: 12px;
  max-height: 20rem;
  overflow: auto;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  font: 12px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap;
  word-break: break-all;
}
pre:empty::before { content: "Nothing yet."; color: var(--muted); }
code { font: 0.92em ui-monospace, SFMono-Regular, Menlo, monospace; }

footer { margin-top: 40px; color: var(--muted); font-size: 0.9rem; }
a { color: var(--accent); }