:root {
  --bg: #f6f7f9; --panel: #ffffff; --text: #1d2330; --muted: #5f6b7a; --border: #dde2e8;
  --accent: #1f6feb; --ok: #1a7f37; --warn: #9a6700; --bad: #cf222e; --code: #f0f2f5;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11151b; --panel: #181d25; --text: #e6e9ee; --muted: #9aa5b1; --border: #2b323d;
          --accent: #4c8dff; --ok: #3fb950; --warn: #d29922; --bad: #f85149; --code: #202631; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
header { background: var(--panel); border-bottom: 1px solid var(--border); padding: 0 16px; display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
header .brand { font-weight: 600; padding: 12px 0; }
header nav a { color: var(--muted); text-decoration: none; padding: 12px 6px; display: inline-block; }
header nav a.on, header nav a:hover { color: var(--text); }
header form { margin-left: auto; }
main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 40px; }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 24px 0 8px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-bottom: 16px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; }
.tile .n { font-size: 24px; font-weight: 600; }
.tile .l { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; background: var(--panel); }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
td.wrap { max-width: 420px; word-break: break-word; }
code, pre { background: var(--code); border-radius: 4px; font: 12px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace; }
code { padding: 1px 4px; }
pre { padding: 10px; overflow-x: auto; white-space: pre-wrap; word-break: break-all; max-height: 360px; }
a { color: var(--accent); }
label { display: block; margin: 10px 0 4px; color: var(--muted); font-size: 13px; }
label.inline { display: inline-flex; gap: 6px; align-items: center; color: var(--text); }
input[type=text], input[type=password], input[type=url], input[type=number], select {
  width: 100%; max-width: 420px; padding: 7px 9px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font: inherit; }
button, .btn { font: inherit; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); cursor: pointer; text-decoration: none; display: inline-block; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--bad); }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.hint { color: var(--muted); font-size: 12px; margin: 4px 0 0; }
.msg { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; border: 1px solid; }
.msg.ok { border-color: var(--ok); color: var(--ok); }
.msg.err { border-color: var(--bad); color: var(--bad); }
.st { font-weight: 600; font-size: 12px; text-transform: uppercase; }
.st-sent, .st-1 { color: var(--ok); } .st-pending, .st-duplicate { color: var(--warn); }
.st-failed, .st-invalid, .st-0 { color: var(--bad); }
.login { max-width: 360px; margin: 10vh auto; }
.pager { margin-top: 12px; }