:root {
  --bg: #f4f5f7; --panel: #ffffff; --panel-2: #f9fafb; --border: #e3e6ea; --text: #1d2330;
  --muted: #6b7280; --accent: #2563eb; --accent-soft: #e8efff; --good: #15803d; --bad: #c2410c;
  --warn-bg: #fff7e6; --warn-border: #f5c26b; --warn-text: #8a5a00; --side: #111827; --side-text: #cbd5e1;
  --side-active: #1f2937; --chart-1: #2563eb; --chart-2: #e8590c; --chart-3: #0f9d58; --chart-4: #9333ea;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --panel: #171a21; --panel-2: #1c2029; --border: #2a2f3a; --text: #e6e8ec;
    --muted: #9aa3b2; --accent: #6b9bff; --accent-soft: #1e2a44; --good: #4ade80; --bad: #fb923c;
    --warn-bg: #2b2210; --warn-border: #7a5a14; --warn-text: #f3c969; --side: #0a0c10; --side-text: #aab4c3;
    --side-active: #1a1f29; --chart-1: #6b9bff; --chart-2: #ff8a4c; --chart-3: #34c77b; --chart-4: #b47cff;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font-size: 14px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select { font: inherit; color: inherit; }

.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: var(--side); color: var(--side-text); padding: 16px 10px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.side .logo { font-weight: 700; color: #fff; font-size: 16px; padding: 4px 10px 14px; }
.side .group { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; opacity: .6; padding: 14px 10px 6px; }
.side a { display: flex; justify-content: space-between; align-items: center; color: var(--side-text); padding: 8px 10px; border-radius: 6px; }
.side a:hover { background: var(--side-active); text-decoration: none; }
.side a.on { background: var(--side-active); color: #fff; font-weight: 600; }
/* collapsible nav groups (accordion) */
.nav-group { margin: 2px 0; }
.nav-group-head {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 10px 12px;
  background: none; border: 1.5px solid transparent; border-radius: 12px;
  color: var(--side-text); cursor: pointer; text-align: left; font-size: 15px;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}
.nav-group-head:hover { background: var(--side-active); }
.nav-group-head:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nav-group.open > .nav-group-head { border-color: rgba(255, 255, 255, .88); color: #fff; }
.nav-ico { display: inline-flex; opacity: .85; }
.nav-label { flex: 1; }
.nav-group-head .chev { opacity: .7; transition: transform .25s cubic-bezier(.2, .7, .3, 1); }
.nav-group.open .chev { transform: rotate(90deg); }
.nav-group-body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s cubic-bezier(.2, .7, .3, 1); }
.nav-group.open .nav-group-body { grid-template-rows: 1fr; }
.nav-group-body > ul {
  min-height: 0; overflow: hidden; list-style: none; margin: 0 0 0 22px; padding: 0 0 0 14px;
  border-left: 1px solid rgba(255, 255, 255, .14);
  visibility: hidden; transition: visibility 0s linear .3s;  /* hidden links can't be tabbed to */
}
.nav-group.open .nav-group-body > ul { visibility: visible; transition-delay: 0s; }
.nav-group-body li:first-child { margin-top: 6px; }
.nav-group-body li:last-child { margin-bottom: 6px; }
.nav-group-body li { opacity: 0; transform: translateY(-6px); transition: opacity .16s ease, transform .16s ease; }
.nav-group.open .nav-group-body li {
  opacity: 1; transform: none; transition: opacity .28s ease, transform .28s ease;
  transition-delay: calc(80ms + var(--i) * 55ms);  /* children fade in one after another */
}
.side .nav-group-body a { justify-content: flex-start; gap: 12px; padding: 9px 10px; font-size: 15px; }
.nav-emoji { width: 20px; text-align: center; font-size: 17px; line-height: 1; }
@media (prefers-reduced-motion: reduce) {
  .nav-group-head .chev, .nav-group-body, .nav-group-body > ul, .nav-group-body li { transition: none !important; }
}
.side .tag { font-size: 11px; padding: 1px 6px; border-radius: 10px; background: #374151; color: #d1d5db; }

.main { min-width: 0; }
.top { display: flex; align-items: center; gap: 12px; padding: 12px 24px; border-bottom: 1px solid var(--border); background: var(--panel); position: sticky; top: 0; z-index: 5; }
.top h1 { font-size: 18px; margin: 0; flex: 1; }
.pill { font-size: 12px; padding: 4px 10px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); white-space: nowrap; }
.pill.stale { background: var(--warn-bg); color: var(--warn-text); border: 1px solid var(--warn-border); }
.menu-btn { display: none; background: none; border: 1px solid var(--border); border-radius: 6px; padding: 4px 10px; cursor: pointer; }
.content { padding: 20px 24px 40px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tabs a { padding: 10px 14px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs a.on { color: var(--accent); border-color: var(--accent); font-weight: 600; }
.tabs a:hover { text-decoration: none; color: var(--text); }

.bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 16px; }
.bar input, .bar select { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; }
.btn { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 6px 12px; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--bad); }
.btn.sm { padding: 3px 8px; font-size: 12px; }
.btn.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.kpi .l { color: var(--muted); font-size: 12px; }
.kpi .v { font-size: 20px; font-weight: 650; margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi .s { color: var(--muted); font-size: 12px; margin-top: 2px; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; margin-bottom: 16px; }
.card h3 { margin: 0 0 10px; font-size: 15px; }
.card .sub { color: var(--muted); font-size: 12px; margin: -6px 0 10px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.chart { position: relative; height: 280px; }

.note { background: var(--warn-bg); border: 1px solid var(--warn-border); color: var(--warn-text); border-radius: 8px; padding: 8px 12px; margin-bottom: 14px; font-size: 13px; }
.muted { color: var(--muted); }
.pos { color: var(--good); }
.neg { color: var(--bad); }
.err { color: var(--bad); padding: 12px 0; }
.loading { color: var(--muted); padding: 20px 0; }

.tbl-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { background: var(--panel-2); font-weight: 600; color: var(--muted); position: sticky; top: 0; cursor: pointer; user-select: none; }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; }
td.wrap { white-space: normal; min-width: 220px; }
tr:hover td { background: var(--panel-2); }
tr.closed td { opacity: .6; }
.badge { font-size: 11px; padding: 1px 6px; border-radius: 8px; background: var(--panel-2); border: 1px solid var(--border); }
.badge.red { color: var(--bad); border-color: var(--bad); }

dl.kv { display: grid; grid-template-columns: 140px 1fr; gap: 6px 12px; margin: 0; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; }

.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.modal { background: var(--panel); border-radius: 12px; padding: 20px; width: 100%; max-width: 460px; border: 1px solid var(--border); }
.modal h3 { margin-top: 0; }
.form-row { margin-bottom: 12px; }
.form-row label { display: block; color: var(--muted); font-size: 12px; margin-bottom: 4px; }
.form-row input[type=text], .form-row input[type=password], .form-row select { width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 8px; }
.checks { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.login { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 28px; width: 100%; max-width: 360px; }
.login h1 { font-size: 20px; margin: 0 0 18px; }
.login .btn { width: 100%; padding: 10px; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: fixed; left: 0; top: 0; width: 240px; z-index: 40; transform: translateX(-100%); transition: transform .2s; }
  .side.open { transform: none; }
  .menu-btn { display: inline-block; }
  .grid2 { grid-template-columns: 1fr; }
  .content { padding: 16px; }
  .top { padding: 10px 16px; }
  dl.kv { grid-template-columns: 110px 1fr; }
}