:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e2e5ea;
  --text: #1a1d23;
  --text-muted: #6b7280;
  --accent: #3b5bfd;
  --accent-contrast: #ffffff;
  --ok: #15803d;
  --ok-bg: #dcfce7;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --err: #b91c1c;
  --err-bg: #fee2e2;
  --neutral-bg: #eef0f3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --surface: #1c1f26;
    --border: #2b2f38;
    --text: #e7e9ee;
    --text-muted: #9aa1ae;
    --accent: #6d85ff;
    --accent-contrast: #0d1020;
    --ok: #4ade80;
    --ok-bg: #0f2e1d;
    --warn: #fbbf24;
    --warn-bg: #332507;
    --err: #f87171;
    --err-bg: #331111;
    --neutral-bg: #262a33;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  padding: 20px 16px 60px;
}
.wrap { max-width: 1080px; margin: 0 auto; display: grid; gap: 20px; }
h1 { font-size: 1.35rem; margin: 0; }
h2 { font-size: 1rem; margin: 0 0 12px; }
.sub { color: var(--text-muted); font-size: 0.85rem; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.78rem; padding: 4px 10px; border-radius: 999px;
  background: var(--neutral-bg); color: var(--text-muted);
}
.status-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); }
.status-pill.online { background: var(--ok-bg); color: var(--ok); }
.status-pill.online .dot { background: var(--ok); }
.status-pill.offline { background: var(--err-bg); color: var(--err); }
.status-pill.offline .dot { background: var(--err); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

label { display: block; font-size: 0.78rem; color: var(--text-muted); margin: 10px 0 4px; }
label:first-child { margin-top: 0; }
input[type=text], input[type=password], input[type=url], select, textarea {
  width: 100%; padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  font-size: 0.88rem; font-family: inherit;
}
textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.8rem; min-height: 90px; resize: vertical; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 4px; }
.checks label { display: flex; align-items: center; gap: 6px; font-size: 0.82rem; color: var(--text); margin: 0; }
.checks input { width: auto; }

button {
  background: var(--accent); color: var(--accent-contrast); border: none;
  padding: 8px 14px; border-radius: 8px; font-size: 0.85rem; font-weight: 600;
  cursor: pointer; margin-top: 12px;
}
button.secondary { background: var(--neutral-bg); color: var(--text); }
button.danger { background: var(--err-bg); color: var(--err); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--text-muted); font-weight: 600; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.02em; }
.table-wrap { overflow-x: auto; }
.empty { color: var(--text-muted); font-size: 0.85rem; padding: 10px 0; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.72rem; font-weight: 600; }
.badge.active { background: var(--ok-bg); color: var(--ok); }
.badge.inactive { background: var(--err-bg); color: var(--err); }
.badge.delivered { background: var(--ok-bg); color: var(--ok); }
.badge.pending_retry { background: var(--warn-bg); color: var(--warn); }
.badge.failed_permanent, .badge.exhausted { background: var(--err-bg); color: var(--err); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.78rem; }
.msg { font-size: 0.82rem; margin-top: 8px; padding: 8px 10px; border-radius: 8px; display: none; }
.msg.show { display: block; }
.msg.ok { background: var(--ok-bg); color: var(--ok); }
.msg.err { background: var(--err-bg); color: var(--err); }
code.url { word-break: break-all; }