:root {
  --azul: #1f4e79;
  --azul-claro: #2f6ba3;
  --verde: #1a8f5a;
  --rojo: #c0392b;
  --fondo: #f4f6f9;
  --panel: #ffffff;
  --texto: #1c2530;
  --texto-suave: #5b6b7f;
  --borde: #e2e7ee;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fondo: #10151d;
    --panel: #1a2130;
    --texto: #e8edf4;
    --texto-suave: #93a2b8;
    --borde: #2a3346;
    --azul-claro: #5b9bd9;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--fondo); color: var(--texto);
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
a { color: var(--azul-claro); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 230px; flex: 0 0 230px; background: var(--azul); color: #fff;
  display: flex; flex-direction: column; padding: 18px 0;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.marca {
  display: flex; align-items: center; gap: 10px; color: #fff;
  padding: 0 20px 18px; border-bottom: 1px solid rgba(255,255,255,.15); margin-bottom: 12px;
}
.marca:hover { text-decoration: none; }
.marca .logo { height: 24px; width: auto; display: block; }
.marca span { font-weight: 400; opacity: .8; font-size: .8rem; }

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sidebar-nav > a { color: #fff; opacity: .9; padding: 10px 20px; display: block; }
.sidebar-nav > a:hover { opacity: 1; background: rgba(255,255,255,.08); text-decoration: none; }

.submenu { position: relative; }
.submenu-trigger {
  width: 100%; text-align: left; background: none; border: none; color: #fff; opacity: .9;
  font: inherit; cursor: pointer; padding: 10px 20px; display: flex;
  justify-content: space-between; align-items: center;
}
.submenu-trigger:hover { opacity: 1; background: rgba(255,255,255,.08); }
.submenu .flecha { transition: transform .15s; font-size: .8rem; }
.submenu.abierto .flecha { transform: rotate(180deg); }
.submenu-body { display: none; padding: 4px 0 8px; }
.submenu.abierto .submenu-body { display: block; }
.submenu-body a { display: block; padding: 7px 20px 7px 32px; color: #fff; opacity: .85; font-size: .92rem; }
.submenu-body a:hover { opacity: 1; background: rgba(255,255,255,.08); text-decoration: none; }
.submenu-body a.historica { opacity: .6; }
.submenu-grupo {
  padding: 10px 20px 4px 32px; font-size: .68rem; text-transform: uppercase; letter-spacing: .04em;
  color: rgba(255,255,255,.55); font-weight: 700;
}

.usuario-box {
  display: flex; flex-direction: column; gap: 4px; font-size: .88rem;
  padding: 14px 20px 0; border-top: 1px solid rgba(255,255,255,.15); margin-top: 14px;
}
.usuario-box span { opacity: .9; }
.salir { color: #fff; opacity: .75; }
.salir:hover { opacity: 1; }

main { flex: 1; min-width: 0; max-width: 1200px; margin: 0 auto; padding: 28px 24px 60px; }

@media (max-width: 800px) {
  .layout { flex-direction: column; }
  .sidebar {
    position: static; width: 100%; flex: 0 0 auto; height: auto;
    flex-direction: row; flex-wrap: wrap; align-items: center; padding: 12px 16px; gap: 6px 18px;
  }
  .marca { border-bottom: none; padding: 0; margin: 0; margin-right: auto; }
  .sidebar-nav { flex-direction: row; flex: 0 0 auto; gap: 4px; }
  .sidebar-nav > a { padding: 6px 10px; }
  .submenu-trigger { padding: 6px 10px; }
  .submenu-body {
    position: absolute; background: var(--azul); border-radius: 0 0 8px 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,.25); z-index: 20; min-width: 220px; max-height: 60vh; overflow-y: auto;
  }
  .usuario-box { flex-direction: row; align-items: center; border-top: none; margin: 0; padding: 0; gap: 10px; }
}
.cabecera { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
h1 { margin: 0; font-size: 1.5rem; }
h2 { font-size: 1.02rem; margin: 0 0 14px; color: var(--texto-suave); font-weight: 600; }

.tarjetas { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 24px; }
.tarjeta {
  background: var(--panel); border: 1px solid var(--borde); border-radius: 12px;
  padding: 16px 18px; display: flex; flex-direction: column; gap: 6px;
}
.tarjeta span { color: var(--texto-suave); font-size: .82rem; }
.tarjeta strong { font-size: 1.4rem; }
.tarjeta.ingreso strong { color: var(--verde); }
.tarjeta.egreso strong { color: var(--rojo); }

.paneles { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 18px; margin-bottom: 18px; }
.panel {
  background: var(--panel); border: 1px solid var(--borde); border-radius: 12px;
  padding: 18px 20px; overflow-x: auto;
}
.periodo { color: var(--texto-suave); font-size: .88rem; margin: -12px 0 20px; }
.vacio { color: var(--texto-suave); padding: 24px 0; text-align: center; }

table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--borde); white-space: nowrap; }
th { color: var(--texto-suave); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
td.num.pos { color: var(--verde); }
td.num.neg { color: var(--rojo); }

.chip { padding: 2px 9px; border-radius: 20px; font-size: .76rem; font-weight: 600; }
.chip.pos { background: rgba(26,143,90,.15); color: var(--verde); }
.chip.neg { background: rgba(192,57,43,.15); color: var(--rojo); }
.chip.personal { background: rgba(31,78,121,.15); color: var(--azul-claro); margin-left: 6px; }

.tarjeta.personal strong { color: var(--azul-claro); }
.tarjeta.personal small { color: var(--texto-suave); font-size: .74rem; }

.ver-soporte { white-space: nowrap; }

.filtros { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; align-items: center; }
.filtros select, .filtros input, .mes-selector input {
  background: var(--panel); border: 1px solid var(--borde); color: var(--texto);
  padding: 8px 10px; border-radius: 8px; font-size: .88rem;
}
.filtros button {
  background: var(--azul); color: #fff; border: none; padding: 9px 18px;
  border-radius: 8px; cursor: pointer; font-size: .88rem;
}
.filtros button:hover { background: var(--azul-claro); }
.limpiar { color: var(--texto-suave); font-size: .85rem; margin-left: 4px; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--panel); border: 1px solid var(--borde); border-radius: 16px;
  padding: 40px 36px; width: 320px; display: flex; flex-direction: column; gap: 10px;
  box-shadow: 0 20px 50px rgba(0,0,0,.15);
}
.login-marca { font-size: 1.4rem; font-weight: 700; color: var(--azul); text-align: center; }
.login-sub { text-align: center; color: var(--texto-suave); margin: 0 0 14px; font-size: .88rem; }
.login-card label { font-size: .82rem; color: var(--texto-suave); margin-top: 6px; }
.login-card input {
  background: var(--fondo); border: 1px solid var(--borde); color: var(--texto);
  padding: 10px 12px; border-radius: 8px; font-size: .95rem;
}
.login-card button {
  margin-top: 16px; background: var(--azul); color: #fff; border: none;
  padding: 12px; border-radius: 8px; font-size: .95rem; cursor: pointer; font-weight: 600;
}
.login-card button:hover { background: var(--azul-claro); }
.alerta { background: rgba(192,57,43,.12); color: var(--rojo); padding: 10px 12px; border-radius: 8px; font-size: .85rem; }