:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #1b2430;
  --ink-soft: #5f6b7a;
  --muted: #6b7280;
  --line: #e6e8ec;
  --accent: #4f46e5;
  --in: #2a78d6;
  --out: #1baf7a;
  --warn: #b4530a;
  --warn-bg: #fdf1e6;
  --danger: #c0392b;
  --ok: #1a7f4b;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --card: #171b21;
    --ink: #e8eaed;
    --ink-soft: #b6bcc6;
    --muted: #9aa3af;
    --line: #262b33;
    --accent: #a5b4fc;
    --in: #4f97e8;
    --out: #35c79a;
    --warn: #f0a35a;
    --warn-bg: #2a2013;
    --danger: #e57468;
    --ok: #4ec98a;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 20px; background: var(--card);
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 30px; line-height: 1; }
.brand h1 { margin: 0; font-size: 19px; font-weight: 800; }
.brand .sub { margin: 0; font-size: 12px; color: var(--muted); }
.top-actions { display: flex; align-items: center; gap: 12px; }
.conn { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; background: #bbb; }
.dot-ok { background: var(--ok); }
.dot-off { background: #d0342c; }
.icon-btn {
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  width: 36px; height: 36px; border-radius: 9px; cursor: pointer; font-size: 17px;
}
.icon-btn:hover { background: var(--bg); }

.wrap { max-width: 980px; margin: 0 auto; padding: 18px 20px 60px; }

.frescura {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  border-radius: var(--radius); font-size: 13px; margin-bottom: 16px;
  background: var(--card); border: 1px solid var(--line);
}
.frescura .f-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); flex: none; }
.frescura-stale { background: var(--warn-bg); border-color: transparent; color: var(--warn); }
.frescura-stale .f-dot { background: var(--warn); }

.kpis {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px; margin-bottom: 22px;
}
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.kpi-label { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.kpi-val { font-size: 26px; font-weight: 800; letter-spacing: -0.5px; font-variant-numeric: tabular-nums; }
.kpi-muted .kpi-val, .kpi-val.kpi-muted { color: var(--ink-soft); }
.kpi-sub { font-size: 11px; color: var(--muted); margin-top: 2px; }
.kpi-warn { border-color: transparent; background: var(--warn-bg); }
.kpi-warn .kpi-val { color: var(--warn); }
.kpi-warn .kpi-label { color: var(--warn); }

.section { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 18px; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.section-head h2 { margin: 0; font-size: 15px; font-weight: 800; }
.hint-inline { font-size: 12px; color: var(--muted); }

.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); }
.lg { display: flex; align-items: center; gap: 5px; }
.sw { width: 11px; height: 11px; border-radius: 3px; display: inline-block; }
.sw-in { background: var(--in); }
.sw-out { background: var(--out); }

/* Gráfico de barras por mes (CSS puro, sin librerías) */
.chart { display: flex; align-items: flex-end; gap: 10px; min-height: 190px; padding-top: 8px; overflow-x: auto; }
.col { flex: 1; min-width: 46px; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.col-bars { display: flex; align-items: flex-end; gap: 3px; height: 150px; width: 100%; justify-content: center; }
.bar { width: 14px; border-radius: 4px 4px 0 0; min-height: 2px; transition: height .3s ease; }
.bar-in { background: var(--in); }
.bar-out { background: var(--out); }
.col-lbl { font-size: 11px; color: var(--muted); white-space: nowrap; }
.bar-wrap { position: relative; display: flex; align-items: flex-end; height: 150px; }
.bar:hover { filter: brightness(1.1); }

.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.chip { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; font-size: 12px; }
.chip b { display: block; font-size: 17px; font-weight: 800; font-variant-numeric: tabular-nums; margin-top: 1px; }
.chip-warn b { color: var(--warn); }
.chip-danger b { color: var(--danger); }

.filtros { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.fbtn { border: 1px solid var(--line); background: var(--card); color: var(--ink-soft); border-radius: 999px; padding: 6px 13px; font-size: 12px; cursor: pointer; }
.fbtn:hover { background: var(--bg); }
.fbtn.is-active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }

.tabla-wrap { overflow-x: auto; }
.tabla { width: 100%; border-collapse: collapse; font-size: 13px; }
.tabla th, .tabla td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tabla th { font-size: 11px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); font-weight: 700; }
.tabla td.num, .tabla th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tabla td.art { max-width: 260px; overflow: hidden; text-overflow: ellipsis; }
.pos { color: var(--danger); font-weight: 700; }
.neg { color: var(--ok); font-weight: 700; }
.empty { text-align: center; color: var(--muted); padding: 22px 0; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.b-infra { background: var(--warn-bg); color: var(--warn); }
.b-nofac { background: #fdecec; color: var(--danger); }
.b-sin { background: var(--bg); color: var(--muted); }
@media (prefers-color-scheme: dark) { .b-nofac { background: #2a1614; } }

.nota { font-size: 12px; color: var(--muted); margin: 10px 2px 0; }
.pie { font-size: 12px; color: var(--muted); line-height: 1.6; }
code { background: var(--bg); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; font-size: 12px; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: #1b2430; color: #fff; padding: 10px 16px; border-radius: 10px; font-size: 13px; box-shadow: 0 6px 22px rgba(0,0,0,.3); z-index: 99997; }
.toast.hidden { display: none; }