:root {
  --bg: #0f1115;
  --card: #161a22;
  --line: #262c38;
  --ink: #e6e9ef;
  --mute: #8b93a3;
  --accent: #5b8cff;
  --danger: #ff6b6b;
  --ok: #4cd97b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--line);
}
h1 { font-size: 18px; margin: 0; }
h2, h3 { margin: 0 0 10px; }
main { max-width: 760px; margin: 0 auto; padding: 20px; }
.hidden { display: none; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 16px; margin-bottom: 16px;
}
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.muted { color: var(--mute); }
.err { color: var(--danger); font-size: 12px; min-height: 16px; }
input {
  flex: 1; min-width: 160px; background: #0d0f13; color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
}
button {
  background: var(--accent); color: #fff; border: 0; border-radius: 8px;
  padding: 8px 14px; cursor: pointer; font-size: 13px;
}
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--mute); }
button.danger { background: var(--danger); }
ul { list-style: none; padding: 0; margin: 0 0 16px; }
li {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 16px; margin-bottom: 8px; cursor: pointer;
}
li:hover { border-color: var(--accent); }
.status { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: #202636; }
.status.running { color: var(--ok); }
.status.waiting_input { color: #ffd166; }
.status.done, .status.error { color: var(--mute); }
.events { max-height: 60vh; overflow-y: auto; margin: 12px 0; }
.ev {
  border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 10px 12px; margin-bottom: 8px;
  font-size: 13px;
}
.ev.approval_request { border-left-color: #ffd166; }
.ev.error { border-left-color: var(--danger); }
.ev-head { font-weight: 600; margin-bottom: 4px; }
.ev-body { color: var(--mute); white-space: pre-wrap; word-break: break-word; }
code { background: #0d0f13; padding: 2px 6px; border-radius: 6px; }
#prompt-form { display: flex; gap: 8px; }