:root {
  --bg: #f6f5f1; --card: #ffffff; --fg: #1c1c1a; --muted: #6a6964; --line: #e2dfd8;
  --accent: #1f5f4a; --accent-fg: #ffffff; --danger: #a33a2c; --ok: #2d7a4f; --warn: #a06a12;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141413; --card: #1d1d1b; --fg: #ebeae5; --muted: #a09f99; --line: #33322e;
    --accent: #79c4a4; --accent-fg: #0f1f19; --danger: #e8806f; --ok: #79c4a4; --warn: #e2b25a;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.5 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif; }
header { position: sticky; top: 0; z-index: 2; background: var(--bg); border-bottom: 1px solid var(--line);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding: 10px 16px; }
.brand { font-weight: 700; letter-spacing: .01em; }
nav { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--fg); }
main { max-width: 920px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin-bottom: 16px; }
.narrow { max-width: 380px; margin: 40px auto; }
h1 { font-size: 1.35rem; margin: 0 0 12px; }
h2 { font-size: 1.15rem; margin: 0 0 8px; }
h3 { font-size: .95rem; margin: 18px 0 6px; }
.muted { color: var(--muted); }
a { color: var(--accent); }
.small { font-size: .85rem; text-align: center; }
code, pre { font-family: ui-monospace, Consolas, monospace; font-size: .9em; }
pre { background: var(--bg); border: 1px solid var(--line); padding: 10px; border-radius: 6px; overflow-x: auto; }
label { display: flex; flex-direction: column; gap: 4px; font-size: .9rem; color: var(--muted); min-width: 0; }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--fg); }
.label { font-size: .9rem; color: var(--muted); flex: 1; }
input, select { font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line);
  border-radius: 6px; padding: 8px 10px; width: 100%; min-width: 0; }
input[type=checkbox] { width: auto; }
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button { font: inherit; border: 0; border-radius: 6px; padding: 8px 14px; cursor: pointer;
  background: var(--accent); color: var(--accent-fg); white-space: nowrap; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
button.link { background: none; color: var(--muted); padding: 0; }
button:disabled { opacity: .5; cursor: default; }
form.row { display: flex; gap: 10px; align-items: flex-end; margin: 10px 0; }
form.row label { flex: 1; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; margin-top: 10px; }
.wide { grid-column: 1 / -1; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.steps { padding-left: 20px; margin: 6px 0 4px; }
.steps li { margin-bottom: 4px; }
ul.history, ul.chats { list-style: none; padding: 0; margin: 0; }
ul.history li, ul.chats li { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center;
  border-bottom: 1px solid var(--line); padding: 8px 0; }
.history .when { color: var(--muted); font-size: .85rem; min-width: 7.5em; }
.history .what { flex: 1; min-width: 12em; }
.badge { font-size: .78rem; border-radius: 99px; padding: 1px 8px; border: 1px solid currentColor; }
.s-done { color: var(--ok); } .s-failed, .s-interrupted { color: var(--danger); }
.s-running, .s-queued { color: var(--warn); } .s-cancelled { color: var(--muted); }
.chats .who { flex: 1; min-width: 10em; }
.chats .id { color: var(--muted); font-size: .85rem; }
#current { margin: 8px 0; }
#toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); max-width: calc(100% - 32px);
  background: var(--fg); color: var(--bg); padding: 10px 16px; border-radius: 8px; z-index: 5; }
#toast.error { background: var(--danger); color: #fff; }
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  form.row { flex-direction: column; align-items: stretch; }
}