/* One column at 390px, a wider grid from 900px. System fonts only, no CDN. */
:root {
  --ink: #15181d;
  --ink-2: #5b6472;
  --line: #d9dee6;
  --bg: #f6f7f9;
  --card: #ffffff;
  --accent: #1d4ed8;
  --warn-bg: #fff4e5;
  --warn-ink: #7a4b00;
  --stop-bg: #fdecec;
  --stop-ink: #8c1d1d;
  --ok-bg: #eef3ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.banner {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #15181d;
  color: #fff;
  letter-spacing: .08em;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  padding: 8px 12px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.brand { font-size: 20px; font-weight: 650; }
.tenant { font-size: 14px; color: var(--ink-2); }
.muted { color: var(--ink-2); }
.small { font-size: 13px; }

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 16px;
  max-width: 1120px;
  margin: 0 auto 16px;
  overflow-x: auto;
}

.tabs a {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  white-space: nowrap;
}

.tabs a[aria-current="page"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.tabs a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px;
}

main { max-width: 1120px; margin: 0 auto; padding: 0 16px 24px; }

h1 { font-size: 24px; margin: 8px 0 4px; }
h2 { font-size: 18px; margin: 0 0 8px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 12px;
}

.grid { display: grid; gap: 12px; }
@media (min-width: 900px) { .grid.cols-3 { grid-template-columns: repeat(3, 1fr); } .grid.cols-2 { grid-template-columns: 3fr 2fr; } }

.kpi .value { font-size: 28px; font-weight: 650; }
.kpi .label { font-size: 13px; color: var(--ink-2); }

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.row:last-child { border-bottom: 0; }

button {
  font: inherit;
  padding: 9px 14px;
  min-height: 38px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  cursor: pointer;
}
button.primary { background: var(--ink); color: #fff; border-color: var(--ink); }
button.danger { background: var(--stop-bg); color: var(--stop-ink); border-color: #f0c2c2; }

input[type="text"], textarea {
  font: inherit;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
}
textarea { min-height: 160px; font-family: ui-monospace, Consolas, "Courier New", monospace; font-size: 14px; }

.pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 650;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--warn-bg);
  color: var(--warn-ink);
  border: 1px solid #f0dcbb;
}
.pill.stop { background: var(--stop-bg); color: var(--stop-ink); border-color: #f0c2c2; }
.pill.neutral { background: var(--ok-bg); color: #1c3d8f; border-color: #c9d8fb; }

.notice {
  background: var(--warn-bg);
  border: 1px solid #f0dcbb;
  color: var(--warn-ink);
  border-radius: 10px;
  padding: 12px;
  font-weight: 600;
}
.notice.stop { background: var(--stop-bg); border-color: #f0c2c2; color: var(--stop-ink); }

.reply {
  white-space: pre-wrap;
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  font-size: 14px;
  background: #fbfcfe;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { padding: 6px 0 6px 18px; position: relative; border-left: 2px solid var(--line); margin-left: 6px; }
.timeline li::before {
  content: ""; position: absolute; left: -6px; top: 14px;
  width: 9px; height: 9px; border-radius: 50%; background: var(--accent);
}

.empty { color: var(--ink-2); font-style: italic; padding: 8px 0; }
.loading { color: var(--ink-2); }

.footer { max-width: 1120px; margin: 0 auto; padding: 16px; border-top: 1px solid var(--line); }
.connections { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.controls-grid { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.controls-grid button { font-size: 13px; padding: 6px 10px; min-height: 32px; }

.suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 12px; }
.suggestions button { font-size: 13px; }

code { font-family: ui-monospace, Consolas, "Courier New", monospace; font-size: 13px; }