:root {
  --bg: #121212;
  --surface: #1A1B1E;
  --surface-2: #24262B;
  --ink: #FFFFFF;
  --ink-soft: #D0D0D0;
  --accent: #2E5A72;       /* azul petróleo: acento principal (líneas de tendencia, bordes de KPI) */
  --accent-2: #4C6A82;     /* azul acero: acento secundario (barras, iconos, hover) */
  --highlight: #6FB1D3;    /* celeste ejecutivo: solo KPIs positivos / activos */
  --danger: #B84A4A;       /* rojo suave: solo alertas críticas */
  --line: rgba(167, 176, 184, 0.22);  /* gris metálico atenuado: bordes y divisores */
  --line-strong: #A7B0B8;             /* gris metálico pleno: iconos secundarios */
  --accent-soft: rgba(46, 90, 114, 0.18);
  --danger-soft: rgba(184, 74, 74, 0.14);
  --radius: 3px;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

h1, h2, h3 { font-family: 'Space Grotesk', sans-serif; font-weight: 500; margin: 0; }

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 48px 36px;
}

.login-eyebrow { margin: 0 0 4px; font-size: 13px; letter-spacing: 0.02em; color: var(--accent-2); }
.login-title { font-size: 28px; margin-bottom: 32px; color: var(--ink); }

#login-form label { display: block; font-size: 13px; color: var(--ink-soft); margin: 16px 0 6px; }
#login-form input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: inherit; font-size: 15px; background: var(--surface-2); color: var(--ink);
}
#login-form input:focus { outline: 2px solid var(--accent-2); outline-offset: 1px; }
.login-error { color: var(--danger); font-size: 13px; margin: 14px 0 0; }

#login-btn {
  width: 100%; margin-top: 24px; padding: 12px; background: var(--ink); color: var(--bg);
  border: none; border-radius: var(--radius); font-family: inherit; font-size: 15px; font-weight: 500; cursor: pointer;
}
#login-btn:hover { background: var(--accent); color: #fff; }
#login-btn:disabled { opacity: 0.5; cursor: default; }

.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 28px; border-bottom: 1px solid var(--line); background: var(--surface-2);
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.brand-mark { font-family: 'Space Grotesk', sans-serif; font-size: 20px; font-weight: 600; letter-spacing: 0.02em; color: var(--ink); }
.brand-sep { color: var(--line-strong); }
.brand-sub { color: var(--ink-soft); font-size: 14px; }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.user-email { color: var(--ink-soft); font-size: 13px; }

.btn-ghost {
  background: none; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 7px 14px; font-family: inherit; font-size: 13px; color: var(--ink-soft); cursor: pointer;
}
.btn-ghost:hover { border-color: var(--accent-2); color: var(--highlight); }

.layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 61px); }

.filters { border-right: 1px solid var(--line); padding: 24px 20px; background: var(--surface-2); }
.filters-title { font-size: 13px; color: var(--ink-soft); margin-bottom: 18px; font-family: 'Inter', sans-serif; font-weight: 600; }
.filters label { display: block; font-size: 12px; color: var(--ink-soft); margin: 14px 0 5px; }
.filters select, .filters input {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: inherit; font-size: 13px; background: var(--surface); color: var(--ink);
}
.date-range-row { display: flex; gap: 6px; }
.date-range-row input { width: 50%; }

.btn-primary {
  width: 100%; margin-top: 22px; padding: 10px; background: var(--accent); color: #fff;
  border: none; border-radius: var(--radius); font-family: inherit; font-size: 14px; font-weight: 500; cursor: pointer;
}
.btn-primary:hover { background: var(--accent-2); }

.export-btn { width: 100%; margin-top: 10px; text-align: center; }

.chart-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.chart-header-row h3 { margin-bottom: 0; }
.btn-small { padding: 6px 12px; font-size: 12px; }

.loading-note { margin-top: 14px; font-size: 12px; color: var(--ink-soft); font-style: italic; }

.content { padding: 28px 32px; max-width: 1100px; }

.kpi-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); margin-bottom: 32px;
}
.kpi { background: var(--surface); padding: 20px 22px; }
.kpi-label { margin: 0 0 8px; font-size: 12px; color: var(--ink-soft); }
.kpi-value { margin: 0; font-family: 'Space Grotesk', sans-serif; font-size: 30px; font-weight: 500; color: var(--ink); }

.chart-block { background: var(--surface); border: 1px solid var(--line); padding: 22px 24px; margin-bottom: 24px; }
.chart-block h3 { font-size: 16px; margin-bottom: 16px; color: var(--ink); }

.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.chart-grid .chart-block { margin-bottom: 0; }

.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th { text-align: left; color: var(--ink-soft); font-weight: 500; font-size: 12px; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.data-table td { padding: 9px 10px; border-bottom: 1px solid var(--line); color: var(--ink); }
.data-table tbody tr:hover { background: var(--accent-soft); }

.chart-caption { margin: 12px 0 0; font-size: 12px; color: var(--ink-soft); font-style: italic; line-height: 1.4; }
.kpi-caption { margin: -20px 0 32px; }

.period-banner { padding: 14px 32px; background: var(--surface-2); border-bottom: 1px solid var(--line); font-size: 14px; }
.period-label { color: var(--ink-soft); margin-right: 8px; }
.period-value { font-family: 'Space Grotesk', sans-serif; font-size: 17px; font-weight: 500; color: var(--highlight); }

.view-tabs { display: flex; gap: 4px; padding: 0 32px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.tab-btn { background: none; border: none; border-bottom: 2px solid transparent; padding: 12px 16px; font-family: inherit; font-size: 14px; color: var(--ink-soft); cursor: pointer; }
.tab-btn.active { color: var(--highlight); border-bottom-color: var(--highlight); font-weight: 600; }
.tab-btn:hover { color: var(--highlight); }

.compare-base-note { font-size: 13px; color: var(--ink-soft); margin: 4px 0 18px; }
.compare-base-note strong { color: var(--ink); }
.compare-year-checks { margin-bottom: 6px; }
.compare-year-checks label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink); margin: 8px 0; text-transform: none; }
.compare-year-checks input { width: auto; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .filters { border-right: none; border-bottom: 1px solid var(--line); }
  .chart-grid { grid-template-columns: 1fr; }
  .kpi-strip { grid-template-columns: 1fr; }
}

.quick-period-btns { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; }
.quick-btn {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 8px 10px; font-family: inherit; font-size: 12px; color: var(--ink-soft); cursor: pointer; text-align: left;
}
.quick-btn:hover { border-color: var(--accent-2); color: var(--highlight); }
.quick-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.projection-card { margin-top: 24px; padding: 16px; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); }
.projection-label { font-size: 12px; color: var(--ink-soft); margin: 0 0 6px; }
.projection-value { font-family: 'Space Grotesk', sans-serif; font-size: 22px; font-weight: 500; margin: 0; color: var(--highlight); }
.projection-detail { font-size: 11px; color: var(--ink-soft); margin: 6px 0 0; line-height: 1.4; }

.alerts-banner { padding: 16px 32px; background: var(--danger-soft); border-bottom: 1px solid var(--danger); }
.alert-card {
  background: var(--surface); border: 1px solid rgba(184, 74, 74, 0.35); border-left: 3px solid var(--danger);
  padding: 12px 14px;
}
.alert-card-name { font-size: 12px; color: var(--ink-soft); margin: 0 0 4px; }
.alert-card-pct { font-family: 'Space Grotesk', sans-serif; font-size: 20px; font-weight: 600; color: var(--danger); margin: 0; }
.alert-card-detail { font-size: 11px; color: var(--ink-soft); margin: 4px 0 0; }

.kpi-strip-secondary { grid-template-columns: repeat(3, 1fr); margin-top: -16px; }
.kpi-value-small { font-size: 22px; }

.margin-table { margin-top: 16px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.two-col h4 { font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 600; color: var(--ink-soft); margin: 0 0 10px; }

@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; }
}

.positive { color: var(--highlight); font-weight: 600; }
.negative { color: var(--danger); font-weight: 600; }

.stock-compare-controls { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.stock-compare-controls label { font-size: 13px; color: var(--ink-soft); }
.stock-compare-controls select { padding: 6px 10px; border: 1px solid var(--line); border-radius: var(--radius); font-family: inherit; font-size: 13px; background: var(--surface); color: var(--ink); }

.global-loading {
  font-size: 12px;
  color: var(--highlight);
  animation: pulse-loading 1.2s ease-in-out infinite;
}
@keyframes pulse-loading {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* Cargando por sección: cada tarjeta/tabla/gráfico se atenúa y muestra su
   propia etiqueta "Cargando…" mientras espera su respuesta, en vez de un
   único indicador global para todo el dashboard. */
.section-loading {
  position: relative;
  min-height: 40px;
}
.section-loading > *:not(.section-loading-tag) {
  opacity: 0.35;
  filter: grayscale(0.3);
  pointer-events: none;
  transition: opacity 0.15s ease;
}
.section-loading::after {
  content: "Cargando…";
  position: absolute;
  top: 10px;
  right: 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--highlight);
  background: var(--surface);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 3px 9px;
  animation: pulse-loading 1.2s ease-in-out infinite;
  z-index: 2;
}

.btn-small-select {
  padding: 6px 10px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: inherit; font-size: 12px; background: var(--surface); color: var(--ink);
}

.second-group { margin-top: 24px; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.stock-card { border: 1px solid var(--line); padding: 14px 16px; background: var(--surface-2); }
.stock-card-name { font-size: 12px; color: var(--ink-soft); margin: 0 0 6px; }
.stock-card-value { font-family: 'Space Grotesk', sans-serif; font-size: 22px; font-weight: 500; margin: 0; color: var(--ink); }
.stock-card-sub { font-size: 11px; color: var(--ink-soft); margin: 6px 0 8px; }
.stock-card-bar-track { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.stock-card-bar-fill { height: 100%; background: var(--accent-2); }
.stock-card-bar-fill.low { background: var(--danger); }
.stock-card-bar-fill.ok { background: var(--highlight); }
.stock-card-bar-fill.high { background: var(--accent-2); }

.holiday-banner {
  padding: 12px 32px; background: var(--accent-soft); border-bottom: 1px solid var(--accent-2);
  font-size: 13px; color: var(--ink); line-height: 1.4;
}

.tag-nuevo {
  display: inline-block; font-size: 10px; font-weight: 600; letter-spacing: 0.02em;
  text-transform: uppercase; color: var(--highlight); border: 1px solid var(--highlight);
  border-radius: var(--radius); padding: 2px 6px;
}

#goal-form { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); }

.pivot-controls { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.pivot-controls label { font-size: 12px; color: var(--ink-soft); }
.pivot-controls select { width: auto; }

.table-scroll { overflow-x: auto; }
#stock-pivot-table { min-width: 900px; }
#stock-pivot-table th, #stock-pivot-table td { white-space: nowrap; }