:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1c2333;
  --muted: #6b7489;
  --line: #e2e6ef;
  --primary: #2f6fed;
  --ingreso: #1f9d63;
  --gasto: #d9483b;
  --amarillo: #e0a800;
  --amarillo-bg: #fff6d6;
  --rojo-bg: #fde4e1;
  --personal: #2f6fed;
  --personal-bg: #e3ebfd;
  --laboral: #7a3fd1;
  --laboral-bg: #efe5fc;
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151d;
    --card: #1b212c;
    --text: #e8ecf4;
    --muted: #97a1b6;
    --line: #2c3442;
    --primary: #5b8cff;
    --ingreso: #3cc488;
    --gasto: #ff6b5e;
    --amarillo: #e8b923;
    --amarillo-bg: #3a3214;
    --rojo-bg: #3d1c1a;
    --personal: #8fb0ff;
    --personal-bg: #22304f;
    --laboral: #c3a1f5;
    --laboral-bg: #33264a;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}
main { max-width: 640px; margin: 0 auto; padding: 0 16px; }
h2 { font-size: 0.95rem; color: var(--muted); margin: 24px 0 10px; text-transform: uppercase; letter-spacing: .04em; }

.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; padding-top: calc(12px + env(safe-area-inset-top));
  background: var(--bg); border-bottom: 1px solid var(--line);
}
.topbar h1 { font-size: 1.25rem; margin: 0; }
.marca { display: flex; align-items: center; gap: 10px; }
.marca img { height: 36px; width: auto; border-radius: 8px; display: block; }
.mes { display: flex; align-items: center; gap: 4px; font-weight: 600; }
.mes span { min-width: 120px; text-align: center; }

button, .boton {
  font: inherit; border: 0; border-radius: 10px; cursor: pointer;
  background: var(--primary); color: #fff; padding: 12px 16px; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center;
}
button.icon { background: transparent; color: var(--text); padding: 6px 10px; font-size: 1.4rem; }
.secundario { background: var(--card); color: var(--text); border: 1px solid var(--line); }

.vista { display: none; padding-top: 16px; }
.vista.activa { display: block; }

.tarjetas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.tarjeta { background: var(--card); border-radius: var(--radius); padding: 12px; border: 1px solid var(--line); min-width: 0; }
.tarjeta span { display: block; font-size: .8rem; color: var(--muted); }
.tarjeta strong { display: block; font-size: 1.05rem; margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tarjeta.ingreso strong { color: var(--ingreso); }
.tarjeta.gasto strong { color: var(--gasto); }

.barras .barra { margin-bottom: 10px; }
.barra .cab { display: flex; justify-content: space-between; font-size: .9rem; margin-bottom: 4px; }
.barra .pista { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; }
.barra .relleno { height: 100%; background: var(--gasto); border-radius: 4px; }

.formulario { display: grid; gap: 8px; background: var(--card); padding: 12px; border-radius: var(--radius); border: 1px solid var(--line); }
.fila { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
input, select {
  font: inherit; width: 100%; padding: 11px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg); color: var(--text); min-width: 0;
}
.segmentado { display: grid; grid-template-columns: 1fr 1fr; background: var(--bg); border-radius: 10px; padding: 3px; }
.segmentado input { display: none; }
.segmentado span { display: block; text-align: center; padding: 8px; border-radius: 8px; cursor: pointer; font-weight: 600; color: var(--muted); }
.segmentado input:checked + span { background: var(--card); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.12); }

.lista { list-style: none; margin: 0; padding: 0; }
.item {
  display: flex; align-items: center; gap: 12px; background: var(--card);
  padding: 12px; border-radius: var(--radius); border: 1px solid var(--line); margin-bottom: 8px;
}
.item .info { flex: 1; min-width: 0; }
.item .principal { font-weight: 600; overflow-wrap: anywhere; }
.item .sec { font-size: .85rem; color: var(--muted); overflow-wrap: anywhere; }
.item .monto { font-weight: 700; white-space: nowrap; }
.item .monto.ingreso { color: var(--ingreso); }
.item .monto.gasto { color: var(--gasto); }
.item.por-vencer { background: var(--amarillo-bg); border-color: var(--amarillo); }
.item.vencido { background: var(--rojo-bg); border-color: var(--gasto); }
.item.vencido .sec { color: var(--gasto); }
.etiqueta { font-size: .7rem; font-weight: 600; padding: 2px 7px; border-radius: 999px; vertical-align: middle; white-space: nowrap; }
.etiqueta.personal { background: var(--personal-bg); color: var(--personal); }
.etiqueta.laboral { background: var(--laboral-bg); color: var(--laboral); }
.item.hecho .principal { text-decoration: line-through; color: var(--muted); }
.item input[type=checkbox] { width: 22px; height: 22px; flex: none; }
.abrir-detalle { cursor: pointer; }
.item .ultima { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.detalle {
  width: min(560px, calc(100% - 24px)); max-height: calc(100% - 48px); padding: 16px;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); color: var(--text);
}
.detalle::backdrop { background: rgba(0, 0, 0, .45); }
.detalle-cab { display: flex; align-items: flex-start; gap: 8px; }
.detalle-titulo { flex: 1; font-size: 1.15rem; font-weight: 700; overflow-wrap: anywhere; padding-top: 4px; }
.detalle .sec { color: var(--muted); font-size: .9rem; margin-top: 4px; }
.bitacora { list-style: none; margin: 0 0 12px; padding: 0; }
.bitacora li { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; margin-bottom: 8px; }
.act-cab { display: flex; justify-content: space-between; align-items: center; font-size: .8rem; color: var(--muted); }
.act-cab .borrar { padding: 0 4px; font-size: .95rem; }
.act-texto { white-space: pre-wrap; overflow-wrap: anywhere; margin-top: 2px; }
textarea { font: inherit; width: 100%; padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text); resize: vertical; }

.borrar { background: transparent; color: var(--muted); padding: 6px 8px; font-size: 1.1rem; }
.dia { font-weight: 700; margin: 18px 0 8px; }
.dia::first-letter { text-transform: uppercase; }
.dia.hoy { color: var(--primary); }
.vacio { color: var(--muted); text-align: center; padding: 16px; }
.check { display: flex; align-items: center; gap: 8px; margin: 14px 2px 0; color: var(--muted); }
.check input { width: auto; }

.filtros { display: flex; gap: 8px; margin: 16px 0 10px; }
.chip { background: var(--card); color: var(--text); border: 1px solid var(--line); padding: 8px 14px; border-radius: 999px; font-weight: 500; }
.chip.activo { background: var(--primary); color: #fff; border-color: var(--primary); }

.fila-botones { display: flex; gap: 8px; flex-wrap: wrap; }
.ayuda { font-size: .85rem; color: var(--muted); }

.tabs {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 5;
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: var(--card); border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabs button { background: transparent; color: var(--muted); flex-direction: column; gap: 2px; padding: 8px 4px 10px; font-size: .78rem; border-radius: 0; }
.tabs button span { font-size: 1.3rem; }
.tabs button.activo { color: var(--primary); }

/* Pantallas: cargando / login / app (atributo data-estado del body) */
.login { display: none; }
body:not([data-estado="app"]) > .login { display: flex; }
body:not([data-estado="app"]) > :is(header, main, nav) { display: none; }
body:not([data-estado="app"]) { padding-bottom: 0; }
.login {
  min-height: 100vh; min-height: 100dvh; flex-direction: column; align-items: center; justify-content: center;
  padding: 24px 16px; gap: 16px;
}
.login-logo { width: 140px; height: 140px; border-radius: 28px; }
.login-cargando { color: var(--muted); margin: 0; }
body[data-estado="login"] .login-cargando, body[data-estado="cargando"] .login-panel { display: none; }
.login-panel { width: 100%; max-width: 380px; display: grid; gap: 12px; }
.login-panel h1 { font-size: 1.3rem; margin: 0; text-align: center; }
.enlace { background: transparent; color: var(--primary); padding: 4px; font-weight: 500; justify-self: center; }
.separador { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .85rem; }
.separador::before, .separador::after { content: ""; flex: 1; border-top: 1px solid var(--line); }
.ancho { width: 100%; }
.login-error { color: var(--gasto); text-align: center; min-height: 1.2em; margin: 0; }

#toast {
  position: fixed; left: 50%; bottom: calc(90px + env(safe-area-inset-bottom)); transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 999px;
  opacity: 0; transition: opacity .2s; pointer-events: none; max-width: calc(100% - 32px);
}
#toast.visible { opacity: 1; }