:root {
  --bg: #0e1117;
  --bg-2: #151a23;
  --bg-3: #1d232f;
  --line: #262d3a;
  --text: #e6eaf2;
  --muted: #8b95a7;
  --accent: #3b82f6;
  --ok: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
  --mixue: #e11d48;
  --momoyo: #8b5cf6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.5 "Segoe UI", system-ui, sans-serif;
}

a { color: var(--accent); }
h1, h2, h3 { margin: 0; font-weight: 650; }

/* ---------------------------------------------------------------- login */
.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 20px;
}
.login-card {
  width: 100%; max-width: 360px; background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 14px; padding: 28px;
}
.login-card h1 { font-size: 18px; margin-bottom: 4px; }
.login-card p.sub { color: var(--muted); margin: 0 0 22px; font-size: 12px; }
.login-card label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 14px; }
.login-card input { width: 100%; margin-top: 5px; }
.login-card button { width: 100%; margin-top: 6px; }

/* ---------------------------------------------------------------- shell */
.topbar {
  position: sticky; top: 0; z-index: 20; background: var(--bg-2);
  border-bottom: 1px solid var(--line); padding: 10px 18px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.logo { display: flex; align-items: center; gap: 9px; margin-right: 6px; }
.logo-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); }
.logo b { font-size: 14px; }
.logo span { display: block; font-size: 10.5px; color: var(--muted); }

.filters { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.filters .sep { width: 1px; height: 22px; background: var(--line); }
.spacer { flex: 1; }
.who { color: var(--muted); font-size: 12px; text-align: right; }
.who b { color: var(--text); display: block; }

.tabs {
  display: flex; gap: 2px; padding: 0 18px; background: var(--bg-2);
  border-bottom: 1px solid var(--line); overflow-x: auto;
}
.tab {
  background: none; border: none; border-bottom: 2px solid transparent;
  color: var(--muted); padding: 9px 13px; cursor: pointer; font: inherit; white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

main { padding: 18px; max-width: 1500px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

/* ---------------------------------------------------------------- form */
input, select, button {
  background: var(--bg); border: 1px solid var(--line); color: var(--text);
  border-radius: 7px; padding: 7px 10px; font: inherit; outline: none;
}
input:focus, select:focus { border-color: var(--accent); }
button { cursor: pointer; background: var(--bg-3); }
button:hover { border-color: #38455a; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { background: #2f6fd8; }
button.sm { padding: 5px 9px; font-size: 12px; }
label.inline { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; }

/* ---------------------------------------------------------------- panel */
.grid { display: grid; gap: 14px; }
.cols-2 { grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
.cols-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.panel {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 12px; margin-bottom: 14px; overflow: hidden;
}
.panel-head {
  padding: 12px 16px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.panel-head h2 { font-size: 13px; }
.panel-head .muted { font-size: 11.5px; }
.panel-body { padding: 14px 16px; }
.muted { color: var(--muted); }

/* ---------------------------------------------------------------- kpi */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); gap: 12px; margin-bottom: 14px; }
.kpi {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px;
}
.kpi .label { color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; }
.kpi .value { font-size: 24px; font-weight: 650; margin-top: 5px; letter-spacing: -.02em; }
.kpi .note { color: var(--muted); font-size: 11.5px; margin-top: 3px; }
.kpi.ok .value { color: var(--ok); }
.kpi.warn .value { color: var(--warn); }
.kpi.bad .value { color: var(--bad); }

/* ---------------------------------------------------------------- table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
th, td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th {
  color: var(--muted); font-weight: 600; font-size: 11.5px; text-transform: uppercase;
  letter-spacing: .03em; position: sticky; top: 0; background: var(--bg-2); cursor: pointer;
}
th.no-sort { cursor: default; }
tbody tr:hover { background: var(--bg-3); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.clickable { cursor: pointer; }
.empty { padding: 28px; text-align: center; color: var(--muted); }

/* ---------------------------------------------------------------- chip */
.chip {
  display: inline-block; border: 1px solid var(--line); background: var(--bg-3);
  border-radius: 999px; padding: 2px 9px; font-size: 11px; color: var(--muted);
}
.chip.ok { border-color: rgba(34,197,94,.45); color: #86efac; }
.chip.warn { border-color: rgba(245,158,11,.5); color: #fcd34d; }
.chip.bad { border-color: rgba(239,68,68,.5); color: #fca5a5; }
.tag {
  display: inline-block; font-size: 10px; font-weight: 700; padding: 1px 6px;
  border-radius: 4px; margin-right: 4px;
}
.tag.bad { background: rgba(239,68,68,.16); color: #fca5a5; border: 1px solid rgba(239,68,68,.4); }
.tag.warn { background: rgba(245,158,11,.14); color: #fcd34d; border: 1px solid rgba(245,158,11,.38); }
.brand-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 6px; }
.brand-Mixue { background: var(--mixue); }
.brand-Momoyo { background: var(--momoyo); }

/* ---------------------------------------------------------------- chart */
.chart { width: 100%; overflow: hidden; }
.chart svg { width: 100%; height: auto; display: block; }
.axis { stroke: var(--line); stroke-width: 1; }
.gridline { stroke: var(--line); stroke-width: 1; stroke-dasharray: 3 4; opacity: .55; }
.axis-text { fill: var(--muted); font-size: 10px; }
.bar { fill: var(--accent); }
.bar:hover { fill: #60a5fa; }
.line { fill: none; stroke: var(--accent); stroke-width: 2; }
.area { fill: var(--accent); opacity: .12; }
.dot { fill: var(--accent); }

.heat { display: grid; grid-template-columns: 42px repeat(24, 1fr); gap: 2px; font-size: 10px; }
.heat div { border-radius: 2px; }
.heat .hl { color: var(--muted); text-align: right; padding-right: 5px; line-height: 18px; }
.heat .cell { height: 18px; background: var(--bg-3); }

/* ---------------------------------------------------------------- modal */
.modal {
  position: fixed; inset: 0; background: rgba(4,6,10,.72); display: none;
  align-items: center; justify-content: center; padding: 20px; z-index: 60;
}
.modal.open { display: flex; }
.modal-card {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 14px;
  width: 100%; max-width: 900px; max-height: 88vh; overflow: auto;
}
.modal-head {
  position: sticky; top: 0; background: var(--bg-2); border-bottom: 1px solid var(--line);
  padding: 14px 18px; display: flex; align-items: center; gap: 10px;
}
.modal-body { padding: 16px 18px; }
pre.receipt {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 14px; font-family: var(--mono); font-size: 11.5px; white-space: pre-wrap;
  max-height: 340px; overflow: auto; margin: 0;
}
.kv { display: grid; grid-template-columns: 170px 1fr; gap: 5px 14px; font-size: 12.5px; margin-bottom: 14px; }
.kv > div:nth-child(odd) { color: var(--muted); }

/* ---------------------------------------------------------------- misc */
.toast-wrap { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 90; }
.toast {
  background: var(--bg-3); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 10px 14px; max-width: 380px; box-shadow: 0 10px 30px rgba(0,0,0,.45);
}
.toast.bad { border-left-color: var(--bad); }
.toast.ok { border-left-color: var(--ok); }
.err { color: #fca5a5; font-size: 12px; min-height: 17px; }
.loading { opacity: .45; pointer-events: none; }
.bar-inline { height: 6px; background: var(--bg-3); border-radius: 3px; overflow: hidden; min-width: 60px; }
.bar-inline i { display: block; height: 100%; background: var(--accent); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #2b3444; border-radius: 5px; border: 2px solid var(--bg-2); }