:root {
  --morado: #7c3aed;
  --morado-oscuro: #5b21b6;
  --morado-claro: #f3ecfe;
  --verde: #15803d;
  --verde-claro: #ecfdf3;
  --rojo: #b91c1c;
  --rojo-claro: #fef2f2;
  --texto: #1f2430;
  --texto-suave: #6b7280;
  --borde: #e6e3ef;
  --fondo: #faf9fc;
  --blanco: #ffffff;
  --radio: 14px;
  --sombra: 0 1px 2px rgba(31, 36, 48, 0.04), 0 8px 24px rgba(124, 58, 237, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--fondo);
  color: var(--texto);
}

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

/* ---------------- Sidebar ---------------- */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--blanco);
  border-right: 1px solid var(--borde);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
}

.brand { display: flex; align-items: center; gap: 12px; padding: 0 8px 24px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--morado), var(--morado-oscuro));
  color: white; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px;
}
.brand-name { font-weight: 700; font-size: 15px; }
.brand-sub { font-size: 12px; color: var(--texto-suave); }

.nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px; border: none;
  background: transparent; color: var(--texto); font-size: 14px; text-align: left;
  cursor: pointer; width: 100%; font-weight: 500;
}
.nav-item:hover { background: var(--morado-claro); }
.nav-item.active { background: var(--morado); color: white; }
.nav-icon { opacity: 0.8; width: 16px; text-align: center; }

.sidebar-footer { font-size: 11px; color: var(--texto-suave); padding: 8px; line-height: 1.5; }

/* ---------------- Main ---------------- */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px; border-bottom: 1px solid var(--borde); background: var(--blanco);
}
.mes-selector { display: flex; align-items: center; gap: 10px; }
.mes-selector label { font-size: 13px; color: var(--texto-suave); font-weight: 600; }
.mes-selector input {
  border: 1px solid var(--borde); border-radius: 10px; padding: 8px 12px; font-size: 14px;
}
.uf-pill {
  background: var(--morado-claro); color: var(--morado-oscuro); font-weight: 700;
  font-size: 13px; padding: 8px 14px; border-radius: 999px;
}

.content { padding: 28px 32px 60px; max-width: 1100px; }

h1.titulo { font-size: 20px; margin: 0 0 4px; }
p.subtitulo { color: var(--texto-suave); margin: 0 0 24px; font-size: 14px; }

/* ---------------- Cards ---------------- */
.card {
  background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio);
  box-shadow: var(--sombra); padding: 20px; margin-bottom: 20px;
}
.card h2 { font-size: 15px; margin: 0 0 14px; }

.grid-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio);
  box-shadow: var(--sombra); padding: 18px 20px;
}
.stat-label { font-size: 12px; color: var(--texto-suave); font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.stat-value { font-size: 24px; font-weight: 700; margin-top: 6px; }
.stat-value.positivo { color: var(--verde); }
.stat-value.negativo { color: var(--rojo); }

/* ---------------- Tables ---------------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: 0.02em; color: var(--texto-suave); padding: 8px 10px; border-bottom: 1px solid var(--borde); }
td { padding: 8px 10px; border-bottom: 1px solid #f1eff6; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr.fila-total td { font-weight: 700; border-top: 2px solid var(--borde); }

input[type="number"], input[type="text"] {
  border: 1px solid var(--borde); border-radius: 8px; padding: 6px 10px; font-size: 14px; width: 140px;
}
input[type="number"]:focus, input[type="text"]:focus { outline: 2px solid var(--morado); border-color: transparent; }

.badge { font-size: 11px; padding: 2px 8px; border-radius: 999px; font-weight: 600; }
.badge-uf { background: var(--morado-claro); color: var(--morado-oscuro); }
.badge-tarjeta { background: #fff7ed; color: #9a3412; }

button.btn {
  background: var(--morado); color: white; border: none; border-radius: 10px;
  padding: 9px 16px; font-size: 13px; font-weight: 600; cursor: pointer;
}
button.btn:hover { background: var(--morado-oscuro); }
button.btn.secundario { background: var(--morado-claro); color: var(--morado-oscuro); }
button.btn.secundario:hover { background: #e9defc; }
button.btn-icono {
  background: transparent; border: 1px solid var(--borde); border-radius: 8px;
  padding: 5px 9px; cursor: pointer; font-size: 13px; color: var(--texto-suave);
}
button.btn-icono:hover { color: var(--rojo); border-color: var(--rojo); }

.fila-form { display: flex; gap: 10px; align-items: center; margin-top: 14px; flex-wrap: wrap; }

.toast {
  position: fixed; top: 18px; right: 24px; background: var(--texto); color: white;
  padding: 10px 18px; border-radius: 10px; font-size: 13px; z-index: 50; box-shadow: var(--sombra);
}
.toast.error { background: var(--rojo); }
.toast.hidden { display: none; }

.nota {
  font-size: 12px; color: var(--texto-suave); margin-top: 10px; line-height: 1.5;
}

.balance-hero {
  background: linear-gradient(135deg, var(--morado), var(--morado-oscuro));
  color: white; border-radius: var(--radio); padding: 24px 28px; margin-bottom: 24px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
}
.balance-hero .label { font-size: 13px; opacity: 0.85; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.balance-hero .valor { font-size: 34px; font-weight: 800; margin-top: 4px; }

.pill-toggle { display: inline-flex; background: var(--morado-claro); border-radius: 999px; padding: 3px; }
.pill-toggle button {
  border: none; background: transparent; padding: 6px 14px; border-radius: 999px; font-size: 13px;
  font-weight: 600; color: var(--morado-oscuro); cursor: pointer;
}
.pill-toggle button.activo { background: var(--morado); color: white; }

.loading { color: var(--texto-suave); font-size: 14px; padding: 20px 0; }