:root {
  --bg: #f6f7f9; --panel: #ffffff; --text: #1d2330; --muted: #6b7385; --border: #e3e6ec;
  --accent: #2f6fed; --accent-weak: #e8f0ff; --ok: #1f9d55; --warn: #c27c0e; --bad: #d64545;
  --free: #1f9d55; --paid: #2f6fed; --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #12151b; --panel: #1a1f27; --text: #e6e9ef; --muted: #8d95a6; --border: #2a313c;
          --accent: #6b9bff; --accent-weak: #1e2a44; --ok: #3ccf7f; --warn: #e3a33a; --bad: #ff6b6b;
          --free: #3ccf7f; --paid: #6b9bff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
header { background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5; }
header .bar { max-width: 1280px; margin: 0 auto; padding: 0 16px; display: flex; align-items: center; gap: 20px; height: 52px; }
header .brand { font-weight: 700; }
header nav { display: flex; gap: 4px; flex-wrap: wrap; }
header nav a { padding: 6px 10px; border-radius: 6px; color: var(--muted); }
header nav a.active, header nav a:hover { background: var(--accent-weak); color: var(--accent); }
header .spacer { flex: 1; }
main { max-width: 1280px; margin: 0 auto; padding: 20px 16px 60px; }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 0 0 12px; }
.grid { display: grid; gap: 16px; }
.cards { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.two { grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; min-width: 0; }
.card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.card .value { font-size: 24px; font-weight: 650; margin-top: 4px; font-variant-numeric: tabular-nums; }
.card .sub { color: var(--muted); font-size: 12px; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
td.num, th.num { text-align: right; }
.scroll { overflow-x: auto; }
.mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.badge { display: inline-block; padding: 1px 7px; border-radius: 999px; font-size: 12px; border: 1px solid var(--border); white-space: nowrap; }
.b-ok { color: var(--ok); border-color: currentColor; }
.b-warn { color: var(--warn); border-color: currentColor; }
.b-bad { color: var(--bad); border-color: currentColor; }
.b-free { color: var(--free); border-color: currentColor; }
.b-paid { color: var(--paid); border-color: currentColor; }
form.inline { display: inline; }
button, .btn { font: inherit; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--panel); color: var(--text); cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--bad); }
button.small { padding: 2px 8px; font-size: 12px; }
input, select, textarea { font: inherit; padding: 6px 8px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.form-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.form-row label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.alert { padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; border: 1px solid; }
.alert.ok { border-color: var(--ok); }
.alert.bad { border-color: var(--bad); }
.token { font-family: var(--mono); padding: 8px 10px; background: var(--bg); border: 1px dashed var(--accent); border-radius: 6px; word-break: break-all; user-select: all; }
.chain { display: flex; gap: 4px; flex-wrap: wrap; }
canvas { max-width: 100%; }
.chart-box { position: relative; height: 240px; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.login { max-width: 360px; margin: 12vh auto; }
input.secret { -webkit-text-security: disc; font-family: var(--mono); }
input.secret:focus { -webkit-text-security: none; }
details summary { cursor: pointer; }
@media (max-width: 640px) { .two { grid-template-columns: 1fr; } header .bar { height: auto; padding: 8px 16px; flex-wrap: wrap; } }