:root {
  --bg: #ffffff; --fg: #1d2330; --muted: #5d6677; --line: #dfe3ea; --panel: #f5f7fa;
  --accent: #1f3a5f; --accent-fg: #ffffff; --ok: #1d7a46; --warn: #9a5b00; --bad: #b42318;
  --slack: #4a154b;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171d; --fg: #e6e9ef; --muted: #9aa3b2; --line: #2c323d; --panel: #1c2028;
          --accent: #8fb3e3; --accent-fg: #0d1117; --ok: #5cc98a; --warn: #e3a74a; --bad: #f2867c; --slack: #d29ad4; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); }
a { color: var(--accent); }
.top { display: flex; gap: 1.5rem; align-items: center; padding: .75rem 1rem; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; letter-spacing: .08em; text-decoration: none; }
.top nav { display: flex; gap: 1rem; }
.who { margin-left: auto; color: var(--muted); font-size: .9rem; }
main { max-width: 64rem; margin: 0 auto; padding: 1rem; }
h1 { font-size: 1.4rem; margin: .5rem 0; }
button { font: inherit; padding: .4rem .9rem; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-fg); cursor: pointer; }
.who button { background: none; color: var(--accent); padding: .1rem .5rem; }
textarea { font: inherit; width: 100%; padding: .5rem; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); }
label { display: block; font-weight: 600; margin-bottom: .25rem; }
.new form, .compose { display: grid; gap: .5rem; margin: 1rem 0 1.5rem; justify-items: start; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); font-weight: 600; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.empty { color: var(--muted); text-align: center; }
.badge { font-size: .75rem; font-weight: 600; padding: .05rem .45rem; border-radius: 999px; border: 1px solid currentColor; }
.badge.slack { color: var(--slack); }
.badge.web { color: var(--accent); }
.badge.schedule { color: var(--muted); }
.status { font-size: .85rem; }
.status.running, .status.waiting { color: var(--warn); }
.status.idle { color: var(--ok); }
.status.error, .status.budget { color: var(--bad); }
.cost { font-weight: 600; font-variant-numeric: tabular-nums; }
.cost.none { color: var(--muted); font-weight: 400; }
.meta { color: var(--muted); margin: 0 0 .5rem; }
.cost-box { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: .5rem .75rem; margin-bottom: 1rem; }
.cost-box summary { cursor: pointer; }
.cost-box .cost { font-size: 1.1rem; margin-left: .25rem; }
.breakdown { margin-top: .5rem; font-size: .9rem; }
.notes { color: var(--muted); font-size: .85rem; padding-left: 1.1rem; }
.transcript { list-style: none; padding: 0; margin: 0; display: grid; gap: .75rem; }
.msg { padding: .6rem .8rem; border-radius: 8px; border: 1px solid var(--line); }
.msg.page { background: var(--panel); }
.msg.notice { border-color: var(--warn); }
.msg .who { font-size: .8rem; color: var(--muted); margin-bottom: .2rem; }
.msg .text { white-space: pre-wrap; overflow-wrap: anywhere; }
.tool { font-size: .85rem; color: var(--muted); }
.tool.error, .tool.refused { color: var(--bad); }
.tool pre { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--panel); padding: .5rem; border-radius: 6px; max-height: 20rem; overflow: auto; color: var(--fg); }
.working { color: var(--warn); }
.readonly { color: var(--muted); margin-top: 1.5rem; }
.error { color: var(--bad); }
.audit code { font-size: .8rem; overflow-wrap: anywhere; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
@media (max-width: 40rem) {
  .conversations th:nth-child(3), .conversations td:nth-child(3), .conversations th:nth-child(4), .conversations td:nth-child(4) { display: none; }
}