:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1c2330;
  --muted: #677185;
  --border: #e3e6eb;
  --accent: #3657e0;
  --accent-ink: #ffffff;
  --accent-soft: #e9eeff;
  --ok: #18794e;
  --ok-soft: #e3f5ec;
  --warn: #9a5b00;
  --warn-soft: #fff3dc;
  --bad: #c22d3a;
  --bad-soft: #fde8ea;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --radius: 10px;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "SFMono-Regular", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --panel: #171b23;
    --text: #e6e9ef;
    --muted: #949cad;
    --border: #2a303b;
    --accent: #7d95ff;
    --accent-ink: #0f1218;
    --accent-soft: #1f2843;
    --ok: #4cc38a;
    --ok-soft: #13291f;
    --warn: #f0b44c;
    --warn-soft: #2d2412;
    --bad: #ff6b78;
    --bad-soft: #321a1d;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font: 14px/1.55 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
.boot { padding: 48px; color: var(--muted); }

/* ---------- layout ---------- */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side {
  background: var(--panel); border-right: 1px solid var(--border);
  padding: 18px 12px; display: flex; flex-direction: column; gap: 4px;
}
.brand { font-weight: 700; font-size: 16px; padding: 4px 10px 14px; letter-spacing: .2px; }
.brand small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }
.nav-group { margin-top: 14px; padding: 0 10px 4px; font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; }
.nav a {
  display: block; padding: 7px 10px; border-radius: 7px; color: var(--text);
}
.nav a:hover { background: var(--bg); }
.nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.side .spacer { flex: 1; }
.who { padding: 10px; border-top: 1px solid var(--border); font-size: 13px; color: var(--muted); }
.who b { color: var(--text); }
.main { padding: 26px 32px 48px; min-width: 0; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
h1 { font-size: 21px; margin: 0; }
h2 { font-size: 15px; margin: 0 0 12px; }
.muted { color: var(--muted); }

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; flex-wrap: wrap; align-items: center; border-right: 0; border-bottom: 1px solid var(--border); padding: 10px 12px; }
  .brand { padding: 0 8px 0 0; }
  .brand small, .nav-group, .side .spacer { display: none; }
  .nav { display: flex; flex-wrap: wrap; gap: 2px; }
  .who { border: 0; padding: 6px 8px; }
  .main { padding: 18px 16px 40px; }
}

/* ---------- surfaces ---------- */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; margin-bottom: 18px; }
.grid { display: grid; gap: 14px; }
.stats { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-bottom: 18px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat .label { color: var(--muted); font-size: 12.5px; }
.stat .value { font-size: 22px; font-weight: 650; margin-top: 4px; font-variant-numeric: tabular-nums; }
.two { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
@media (max-width: 1000px) { .two { grid-template-columns: 1fr; } }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; vertical-align: middle; }
th { font-size: 12px; color: var(--muted); font-weight: 600; }
tbody tr:hover { background: color-mix(in srgb, var(--bg) 60%, transparent); }
td.num, th.num { text-align: right; }
td.wrap { white-space: normal; max-width: 260px; }
.empty { padding: 28px; text-align: center; color: var(--muted); }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; color: var(--muted); }

/* ---------- controls ---------- */
button, .btn {
  font: inherit; border: 1px solid var(--border); background: var(--panel); color: var(--text);
  padding: 6px 12px; border-radius: 7px; cursor: pointer; line-height: 1.4;
}
button:hover { border-color: var(--muted); }
button:disabled { opacity: .55; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button.danger { color: var(--bad); }
button.small { padding: 3px 9px; font-size: 12.5px; }
button.link { border: 0; background: none; color: var(--accent); padding: 2px 4px; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--panel);
  border: 1px solid var(--border); border-radius: 7px; padding: 7px 10px; width: 100%;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
textarea { font-family: var(--mono); font-size: 12.5px; }
label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 4px; }
.field { margin-bottom: 12px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px 12px; }
.inline { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }
.inline .field { margin: 0; }
.hint { font-size: 12px; color: var(--muted); margin-top: 3px; }

/* ---------- badges ---------- */
.badge { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px; font-weight: 600; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.badge.muted { background: var(--bg); color: var(--muted); }

/* ---------- auth ---------- */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth .panel { width: 100%; max-width: 380px; padding: 28px; }
.auth h1 { margin-bottom: 4px; }
.auth p { margin: 0 0 20px; }
.auth button.primary { width: 100%; padding: 9px; margin-top: 6px; }
.auth .switch { margin-top: 14px; text-align: center; color: var(--muted); }

/* ---------- modal / toast ---------- */
.overlay { position: fixed; inset: 0; background: rgba(10, 14, 22, .45); display: grid; place-items: center; padding: 16px; z-index: 10; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; width: 100%; max-width: 560px; max-height: 90vh; overflow: auto; padding: 22px; }
.modal h2 { font-size: 17px; }
.modal .foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.secret { display: flex; gap: 8px; }
.secret input { font-family: var(--mono); }
.callout { background: var(--warn-soft); color: var(--warn); border-radius: 8px; padding: 9px 12px; font-size: 13px; margin-bottom: 12px; }
#toasts { position: fixed; right: 16px; bottom: 16px; display: grid; gap: 8px; z-index: 20; }
.toast { background: var(--text); color: var(--bg); padding: 9px 14px; border-radius: 8px; box-shadow: var(--shadow); max-width: 360px; }
.toast.bad { background: var(--bad); color: #fff; }

/* ---------- bars ---------- */
.bars { display: grid; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 92px 1fr 90px; gap: 10px; align-items: center; font-size: 12.5px; }
.bar { height: 10px; border-radius: 5px; background: var(--accent); min-width: 2px; }
.bar-track { background: var(--bg); border-radius: 5px; }