:root { color-scheme: light dark; --bg: #f4f5f8; --surface: #ffffff; --pane: #eceef3; --ink: #111318;
  --muted: #5d6270; --line: #dcdfe6; --line-strong: #b9bec9; }
@media (prefers-color-scheme: dark) { :root { --bg: #111217; --surface: #1b1d25; --pane: #16181e; --ink: #eceef4;
  --muted: #9da2af; --line: #2a2d37; --line-strong: #4a4f5c; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.5 system-ui, -apple-system, "Segoe UI",
  sans-serif; }
.bar-top { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; margin: 0; font-size: 1rem; font-weight: 600; }
.brand i { display: inline-block; flex: none; width: 14px; height: 14px; background: var(--ink); border-radius: 4px; }
.brand a { display: inline-flex; align-items: center; gap: inherit; color: inherit; text-decoration: none; }
.meta { color: var(--muted); font-size: .875rem; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; overflow-wrap: anywhere; }
main { max-width: 34rem; margin: 0 auto; padding: 2rem 16px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
h2 { margin: 0; font-size: 1.25rem; }
h3 { margin: 0; font-size: 1rem; }
p { margin: 0; }
ol { margin: 0; padding-left: 1.3rem; }
a { color: inherit; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px;
  padding: 7px 16px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface);
  color: var(--ink); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn.primary { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.btn:disabled { background: var(--pane); color: var(--muted); border-color: var(--line); cursor: not-allowed; }
.btn small { font-weight: 400; }
.btn { transition: transform .1s ease-out; }  /* a press answers at once, on the press (apple-motion: response) */
.btn:active:not(:disabled) { transform: scale(.97); }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } .btn:active:not(:disabled) { transform: none; } }
[hidden] { display: none !important; }  /* a button front.js has not shown stays hidden over .btn */