:root {
  color-scheme: light;
  --bg: #f3effe;
  --surface: #ffffff;
  --surface-soft: #f3effe;
  --text: #1e1333;
  --text-soft: #6b5b8f;
  --text-muted: #9c90b8;
  --border: rgba(30,19,51,0.08);
  --primary: #7c3aed;
  --primary-ink: #ffffff;
  --primary-soft: #efe3ff;
  --good: #16a34a;
  --bad: #f43f5e;
  --grid: #ece5fb;
  --baseline: #d8cbf7;

  --series-1: #7c3aed;
  --series-2: #f43f5e;
  --series-3: #16a34a;
  --series-4: #f59e0b;
  --series-5: #06b6d4;
  --series-6: #ec4899;
  --series-7: #6366f1;
  --series-8: #9c90b8;

  --diverging-pos: var(--good);
  --diverging-neg: var(--bad);
  --diverging-mid: var(--grid);
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --bg: #150f26;
    --surface: #211a3b;
    --surface-soft: #1a1430;
    --text: #f3eeff;
    --text-soft: #b8a9e0;
    --text-muted: #7a6b9e;
    --border: rgba(243,238,255,0.10);
    --primary: #a78bfa;
    --primary-ink: #150f26;
    --primary-soft: #2d2452;
    --good: #4ade80;
    --bad: #fb7185;
    --grid: #2d2452;
    --baseline: #3d3269;

    --series-1: #a78bfa;
    --series-2: #fb7185;
    --series-3: #4ade80;
    --series-4: #fbbf24;
    --series-5: #22d3ee;
    --series-6: #f472b6;
    --series-7: #818cf8;
    --series-8: #7a6b9e;

    --diverging-pos: var(--good);
    --diverging-neg: var(--bad);
    --diverging-mid: var(--grid);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #150f26;
  --surface: #211a3b;
  --surface-soft: #1a1430;
  --text: #f3eeff;
  --text-soft: #b8a9e0;
  --text-muted: #7a6b9e;
  --border: rgba(243,238,255,0.10);
  --primary: #a78bfa;
  --primary-ink: #150f26;
  --primary-soft: #2d2452;
  --good: #4ade80;
  --bad: #fb7185;
  --grid: #2d2452;
  --baseline: #3d3269;

  --series-1: #a78bfa;
  --series-2: #fb7185;
  --series-3: #4ade80;
  --series-4: #fbbf24;
  --series-5: #22d3ee;
  --series-6: #f472b6;
  --series-7: #818cf8;
  --series-8: #7a6b9e;

  --diverging-pos: var(--good);
  --diverging-neg: var(--bad);
  --diverging-mid: var(--grid);
}

/* back-compat aliases para selectores viejos */
:root { --surface-1: var(--surface); --page: var(--bg); --text-primary: var(--text); --text-secondary: var(--text-soft); }

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  font-size: 14px;
}

h1, h2 { text-wrap: balance; }

#login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(60% 50% at 15% 10%, color-mix(in srgb, var(--primary) 18%, transparent), transparent),
    radial-gradient(50% 45% at 90% 85%, color-mix(in srgb, var(--series-6) 16%, transparent), transparent),
    var(--bg);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 40px 34px;
  width: 300px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(124,58,237,0.16);
}

.login-card h1 {
  font-family: 'Baloo 2', 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 26px;
  margin: 0 0 20px;
  color: var(--primary);
}

.login-card input {
  width: 100%;
  padding: 13px 16px;
  border-radius: 16px;
  border: 1.5px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  margin-bottom: 14px;
  font-size: 14px;
  font-family: inherit;
}
.login-card input:focus { outline: none; border-color: var(--primary); }

button {
  cursor: pointer;
  border: none;
  border-radius: 999px;
  padding: 11px 22px;
  font-size: 13.5px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: var(--primary);
  color: var(--primary-ink);
  transition: transform 0.12s, opacity 0.15s;
}
button:hover { opacity: 0.92; }
button:active { transform: scale(0.97); }
button.secondary {
  background: var(--primary-soft);
  color: var(--primary);
  border: none;
}
button.danger {
  background: var(--bad);
  color: #fff;
}

.login-error { color: var(--bad); font-size: 13px; min-height: 18px; margin: 0 0 8px; font-weight: 600; }

#app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 90px;
}

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}
header.topbar h1 {
  font-family: 'Baloo 2', 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 26px;
  margin: 0;
  color: var(--primary);
  letter-spacing: -0.01em;
}

.tabnav {
  display: flex;
  gap: 4px;
  background: var(--primary-soft);
  padding: 4px;
  border-radius: 999px;
}
.tab-btn {
  background: transparent;
  color: var(--text-soft);
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
}
.tab-btn:hover { opacity: 1; background: color-mix(in srgb, var(--primary) 12%, transparent); }
.tab-btn.active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(124,58,237,0.18);
}
@media (max-width: 640px) {
  header.topbar { flex-wrap: wrap; gap: 12px; }
  .tabnav { order: 3; width: 100%; justify-content: center; }
}

.vista { animation: vista-in 0.18s ease; }
@keyframes vista-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.hero-balance {
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 65%, var(--series-6)));
  color: var(--primary-ink);
  border-radius: 28px;
  padding: 28px 30px;
  margin-bottom: 20px;
  box-shadow: 0 16px 40px rgba(124,58,237,0.22);
}
.hero-balance .label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
  margin-bottom: 8px;
}
.hero-balance .value {
  font-family: 'Baloo 2', 'Plus Jakarta Sans', sans-serif;
  font-size: 40px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.hero-balance .sub {
  font-size: 13px;
  font-weight: 600;
  opacity: 0.85;
  margin-top: 6px;
}

.cuentas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.cuenta-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 18px 20px;
  text-align: left;
  box-shadow: 0 8px 22px rgba(124,58,237,0.06);
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cuenta-card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(124,58,237,0.14); }
.cuenta-card .avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  font-family: 'Baloo 2', sans-serif;
  color: #fff;
}
.cuenta-card .nombre {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
}
.cuenta-card .tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.cuenta-card .saldos { display: flex; flex-direction: column; gap: 2px; }
.cuenta-card .saldo-linea {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.cuenta-card .saldo-linea.pos { color: var(--good); }
.cuenta-card .saldo-linea.neg { color: var(--bad); }
.cuenta-card .saldo-linea.cero { color: var(--text-muted); font-weight: 500; }
.cuenta-card .nota {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.stat-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 18px 20px;
  box-shadow: 0 8px 24px rgba(124,58,237,0.06);
}
.stat-tile:first-child {
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 70%, var(--series-6)));
  color: var(--primary-ink);
  border: none;
}
.stat-tile:first-child .label { color: color-mix(in srgb, var(--primary-ink) 75%, transparent); }
.stat-tile .label {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.stat-tile .value {
  font-family: 'Baloo 2', 'Plus Jakarta Sans', sans-serif;
  font-size: 26px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.stat-tile .value.pos { color: var(--good); }
.stat-tile .value.neg { color: var(--bad); }
.stat-tile:first-child .value.pos,
.stat-tile:first-child .value.neg { color: var(--primary-ink); }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 22px 22px 12px;
  margin-bottom: 20px;
  box-shadow: 0 8px 24px rgba(124,58,237,0.05);
}
.panel h2 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  margin: 0 0 14px;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 760px) {
  .charts-grid { grid-template-columns: 1fr; }
}

.legend {
  display: flex;
  gap: 16px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--text-soft);
  flex-wrap: wrap;
  font-weight: 600;
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-swatch { width: 10px; height: 10px; border-radius: 4px; display: inline-block; }

.bar-label { fill: var(--text-soft); font-size: 11px; font-family: 'IBM Plex Mono', monospace; font-weight: 500; }
.axis-label { fill: var(--text-muted); font-size: 11px; font-family: 'IBM Plex Mono', monospace; }
.gridline { stroke: var(--grid); stroke-width: 1; }
.baseline { stroke: var(--baseline); stroke-width: 1.5; }

.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--text);
  color: var(--surface);
  font-size: 11px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 10px;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, -100%);
  transition: opacity 0.1s;
  z-index: 10;
}

.chart-wrap { position: relative; }

form#movimiento-form {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  align-items: end;
  margin-bottom: 16px;
}
form#movimiento-form label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-muted);
}
form#movimiento-form input,
form#movimiento-form select {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1.5px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  font-size: 13px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  text-transform: none;
}
form#movimiento-form input:focus,
form#movimiento-form select:focus { outline: none; border-color: var(--primary); }
@media (max-width: 900px) {
  form#movimiento-form { grid-template-columns: repeat(2, 1fr); }
}

.filters {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.filters select, .filters input {
  padding: 8px 13px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--grid);
}
th {
  color: var(--text-muted);
  font-weight: 700;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
td.monto {
  font-family: 'IBM Plex Mono', monospace;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  text-align: right;
}
td.monto.ingreso { color: var(--good); }
td.monto.gasto { color: var(--bad); }

tbody tr { transition: background 0.1s; }
tbody tr:hover { background: var(--surface-soft); }

.table-wrap { overflow-x: auto; }