:root {
  color-scheme: light;
  --bg: #f4f3f0;
  --surface: #fcfcfb;
  --surface-2: #efeee9;
  --border: #dddcd6;
  --text: #1b1b19;
  --text-2: #52514e;
  --text-3: #7a7974;
  --accent: #1c5cab;
  --acs: #2a78d6;
  --clima: #eb6834;
  --warn-bg: #fff4dc;
  --warn: #8a5a00;
  --error-bg: #fde8e7;
  --error: #a32221;
  --ok-bg: #e3f4ea;
  --ok: #1d6b3d;
  --grid: #e7e6e1;
  --on-accent: #ffffff;
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #121211;
    --surface: #1a1a19;
    --surface-2: #232321;
    --border: #33332f;
    --text: #f0efec;
    --text-2: #c3c2b7;
    --text-3: #8f8e86;
    --accent: #6da7ec;
    --acs: #3987e5;
    --clima: #d95926;
    --warn-bg: #3a2c0c;
    --warn: #f0c060;
    --error-bg: #3d1716;
    --error: #f39b9a;
    --ok-bg: #12301f;
    --ok: #7fd3a1;
    --grid: #2a2a27;
    --on-accent: #0b1a2e;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }

/* cabecera */
.top {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 12px 24px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.marca { font-weight: 650; letter-spacing: -0.01em; margin-right: auto; color: var(--text); text-decoration: none; }
.marca small { display: block; font-weight: 400; color: var(--text-3); font-size: 12px; }
.top nav { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.top nav a, .top nav button {
  color: var(--text-2); text-decoration: none; padding: 6px 10px; border-radius: 6px;
  font: inherit; font-size: 14px; background: none; border: 0; cursor: pointer;
}
.top nav a:hover, .top nav button:hover, .top nav a.activo { background: var(--surface-2); color: var(--text); }

main { max-width: 1240px; margin: 0 auto; padding: 24px; }
h1 { font-size: 24px; letter-spacing: -0.02em; margin: 0; }
h2 { font-size: 15px; margin: 0 0 12px; }
.sub { color: var(--text-3); font-size: 13px; }

/* barra de filtros */
.filtros { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.filtros .titulo { margin-right: auto; }
select, input[type=text], input[type=password], input[type=month], input[type=search] {
  font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 7px 10px; min-height: 36px;
}
.btn {
  display: inline-flex; align-items: center; gap: 6px; font: inherit; font-size: 14px; font-weight: 550;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface);
  color: var(--text); text-decoration: none; cursor: pointer; min-height: 36px;
}
.btn:hover { background: var(--surface-2); }
.btn.primario { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primario:hover { filter: brightness(1.08); }
.btn.peligro { color: var(--error); }

/* tarjetas */
.tarjeta { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 12px; }
.kpi .etq { font-size: 13px; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.kpi .valor { font-size: 28px; font-weight: 650; letter-spacing: -0.02em; margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi .valor small { font-size: 14px; font-weight: 500; color: var(--text-3); }
.kpi .delta { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.punto { width: 10px; height: 10px; border-radius: 3px; display: inline-block; flex: none; }
.punto.acs { background: var(--acs); }
.punto.clima { background: var(--clima); }

.rejilla { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }

/* gráfico de barras agrupadas */
.leyenda { display: flex; gap: 14px; font-size: 13px; color: var(--text-2); margin-bottom: 10px; }
.leyenda span { display: inline-flex; align-items: center; gap: 6px; }
.grafico { position: relative; height: 210px; display: flex; align-items: flex-end; gap: 10px;
  padding-left: 44px; border-bottom: 1px solid var(--border); }
.grafico .ejes { position: absolute; inset: 0 0 0 0; pointer-events: none; }
.grafico .linea { position: absolute; left: 44px; right: 0; border-top: 1px solid var(--grid); }
.grafico .linea span { position: absolute; left: -44px; top: -8px; width: 38px; text-align: right;
  font-size: 11px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.grupo { flex: 1; height: 100%; display: flex; align-items: flex-end; justify-content: center; gap: 2px;
  position: relative; z-index: 1; cursor: default; }
.grupo:hover { background: color-mix(in srgb, var(--text) 4%, transparent); border-radius: 6px 6px 0 0; }
.barra { width: min(28px, 40%); border-radius: 4px 4px 0 0; min-height: 1px; }
.barra.acs { background: var(--acs); }
.barra.clima { background: var(--clima); }
.ejex { display: flex; gap: 10px; padding-left: 44px; margin-top: 6px; }
.ejex span { flex: 1; text-align: center; font-size: 12px; color: var(--text-2); }
.grupo.actual { background: color-mix(in srgb, var(--text) 6%, transparent); border-radius: 6px 6px 0 0; }
.ejex span.actual { color: var(--text); font-weight: 650; }

#tip { position: fixed; z-index: 50; pointer-events: none; background: var(--text); color: var(--bg);
  font-size: 12px; padding: 7px 9px; border-radius: 6px; opacity: 0; transition: opacity .1s;
  font-variant-numeric: tabular-nums; white-space: nowrap; }
#tip.ver { opacity: 1; }
#tip b { display: block; margin-bottom: 2px; }

/* avisos */
.aviso { background: var(--warn-bg); color: var(--warn); border-radius: var(--radius); padding: 12px 16px;
  margin-bottom: 12px; font-size: 14px; }
.aviso summary { cursor: pointer; font-weight: 600; }
.aviso ul { margin: 8px 0 0; padding-left: 20px; }
.flash { border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; font-size: 14px; }
.flash.error { background: var(--error-bg); color: var(--error); }
.flash.ok { background: var(--ok-bg); color: var(--ok); }

/* tabla */
.tabla-cab { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.tabla-cab h2 { margin: 0 auto 0 0; }
.envoltura { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--grid); text-align: left; }
th { font-size: 12px; font-weight: 600; color: var(--text-2); background: var(--surface); position: sticky; top: 0;
  white-space: nowrap; user-select: none; }
th[data-orden] { cursor: pointer; }
th[data-orden]:hover { color: var(--text); }
th .flecha { opacity: .5; font-size: 10px; }
tbody tr:hover td { background: var(--surface-2); }
td.cod { font-family: var(--mono); font-size: 13px; }
td.vacio { color: var(--text-3); }
tfoot td { font-weight: 650; border-bottom: 0; border-top: 2px solid var(--border); }
.marca-aviso { color: var(--warn); font-weight: 650; }
.chip { display: inline-block; font-size: 11px; padding: 2px 7px; border-radius: 99px; background: var(--surface-2);
  color: var(--text-2); }

/* formularios */
.form { display: grid; gap: 14px; max-width: 560px; }
.form label { display: grid; gap: 6px; font-size: 14px; font-weight: 550; }
.form .ayuda { font-weight: 400; font-size: 13px; color: var(--text-3); }
input[type=file] { font: inherit; font-size: 14px; padding: 10px; border: 1px dashed var(--border);
  border-radius: 8px; background: var(--surface-2); color: var(--text-2); }

.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login .tarjeta { width: 100%; max-width: 380px; padding: 28px; }
.login h1 { font-size: 20px; margin-bottom: 4px; }

@media (max-width: 900px) {
  .kpis { grid-template-columns: 1fr 1fr; }
  .rejilla { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  main { padding: 16px; }
  .top { padding: 10px 16px; }
  .kpis { grid-template-columns: 1fr; }
  .filtros label[for=mes] { display: none; }
  .filtros .titulo { flex-basis: 100%; }
  .kpi .valor { font-size: 24px; }
}
@media print {
  .top, .filtros .btn, .tabla-cab input, .tabla-cab select { display: none; }
  body { background: #fff; }
}