:root {
  --fondo: #f2f2f7; --tarjeta: #ffffff; --texto: #1c1c1e; --suave: #6e6e73; --linea: #d1d1d6;
  --azul: #0a84ff; --verde: #34c759; --rojo: #ff3b30; --naranja: #ff9500;
  --mio: #dcf8c6; --suyo: #ffffff; --chip: #e5e5ea;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --fondo: #000000; --tarjeta: #1c1c1e; --texto: #f2f2f7; --suave: #98989d; --linea: #38383a;
    --mio: #005c4b; --suyo: #2c2c2e; --chip: #2c2c2e;
  }
}
:root[data-theme="dark"] {
  --fondo: #000000; --tarjeta: #1c1c1e; --texto: #f2f2f7; --suave: #98989d; --linea: #38383a;
  --mio: #005c4b; --suyo: #2c2c2e; --chip: #2c2c2e;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--fondo); color: var(--texto);
  font: 16px/1.35 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; }
button, input, textarea { font: inherit; color: inherit; }

.barra { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 10px;
  padding: max(10px, env(safe-area-inset-top)) 16px 10px; background: color-mix(in srgb, var(--fondo) 85%, transparent);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 0.5px solid var(--linea); }
.barra h1 { flex: 1; margin: 0; font-size: 17px; font-weight: 600; text-align: center; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; }
.atras { border: 0; background: none; color: var(--azul); padding: 4px 0; cursor: pointer; font-size: 17px; }

.interruptor { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--suave); cursor: pointer; }
.interruptor input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.riel { width: 46px; height: 28px; border-radius: 14px; background: var(--linea); position: relative; transition: background .2s; }
.riel::after { content: ""; position: absolute; top: 2px; left: 2px; width: 24px; height: 24px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.3); transition: transform .2s; }
.interruptor input:checked + .riel { background: var(--verde); }
.interruptor input:checked + .riel::after { transform: translateX(18px); }
.interruptor input:focus-visible + .riel { outline: 2px solid var(--azul); outline-offset: 2px; }

main { max-width: 760px; margin: 0 auto; padding: 12px 16px 24px; }
h2 { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .02em; color: var(--suave);
  margin: 22px 4px 8px; }

.resumen { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.dato { background: var(--tarjeta); border-radius: 14px; padding: 12px 14px; }
.dato b { display: block; font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.dato span { font-size: 13px; color: var(--suave); }

.lista { background: var(--tarjeta); border-radius: 14px; overflow: hidden; }
.fila { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border-bottom: 0.5px solid var(--linea);
  cursor: pointer; width: 100%; text-align: left; background: none; border-left: 0; border-right: 0; border-top: 0; }
.fila:last-child { border-bottom: 0; }
.fila:hover { background: color-mix(in srgb, var(--chip) 50%, transparent); }
.fila .cuerpo { flex: 1; min-width: 0; }
.fila .t { font-weight: 600; }
.fila .s { font-size: 13px; color: var(--suave); overflow: hidden; text-overflow: ellipsis; }
.fila .monto { font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; text-align: right; }
.fila .monto small { display: block; font-weight: 400; font-size: 12px; color: var(--suave); }
.chip { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 10px;
  background: var(--chip); color: var(--suave); white-space: nowrap; }
.chip.verde { background: color-mix(in srgb, var(--verde) 18%, transparent); color: var(--verde); }
.chip.rojo { background: color-mix(in srgb, var(--rojo) 16%, transparent); color: var(--rojo); }
.chip.naranja { background: color-mix(in srgb, var(--naranja) 18%, transparent); color: var(--naranja); }
.chip.azul { background: color-mix(in srgb, var(--azul) 16%, transparent); color: var(--azul); }
.vacio { padding: 14px; color: var(--suave); font-size: 14px; }
.pie { font-size: 12px; color: var(--suave); text-align: center; margin-top: 18px; }

#charla { display: flex; flex-direction: column; min-height: calc(100dvh - 60px); padding-bottom: 0; }
.ficha { background: var(--tarjeta); border-radius: 14px; padding: 10px 14px; font-size: 14px; display: flex;
  flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.ficha .boton { margin-left: auto; }
.boton { border: 0; border-radius: 10px; padding: 7px 12px; background: var(--azul); color: #fff; font-weight: 600;
  cursor: pointer; font-size: 14px; }
.boton.gris { background: var(--chip); color: var(--texto); }
.mensajes { flex: 1; display: flex; flex-direction: column; gap: 6px; padding: 14px 0; }
.dia { align-self: center; font-size: 12px; color: var(--suave); background: var(--chip); border-radius: 8px;
  padding: 2px 10px; margin: 8px 0; }
.burbuja { max-width: 82%; padding: 7px 10px 18px; border-radius: 14px; position: relative; white-space: pre-wrap;
  overflow-wrap: anywhere; box-shadow: 0 1px 0.5px rgba(0,0,0,.12); font-size: 15px; }
.burbuja.suyo { align-self: flex-start; background: var(--suyo); border-top-left-radius: 4px; }
.burbuja.mio { align-self: flex-end; background: var(--mio); border-top-right-radius: 4px; }
.burbuja { min-width: 74px; }
.burbuja .hora { position: absolute; right: 9px; bottom: 3px; font-size: 11px; color: var(--suave); white-space: nowrap; }
.burbuja .ops { display: block; margin-top: 6px; font-size: 13px; color: var(--suave); }
.burbuja.orden { background: color-mix(in srgb, var(--naranja) 14%, var(--mio)); }
.burbuja.orden.error { background: color-mix(in srgb, var(--rojo) 18%, var(--suyo)); }

.opciones { display: flex; flex-wrap: wrap; gap: 8px; padding: 4px 0 10px; }
.opciones button { border: 1px solid var(--azul); color: var(--azul); background: var(--tarjeta); border-radius: 18px;
  padding: 7px 12px; cursor: pointer; font-size: 14px; }
.opciones button.peligro { border-color: var(--rojo); color: var(--rojo); }
.aviso { background: color-mix(in srgb, var(--rojo) 14%, var(--tarjeta)); color: var(--texto); border-radius: 12px;
  padding: 10px 12px; font-size: 14px; margin-bottom: 8px; }
.aviso button { margin-top: 8px; margin-right: 8px; }
.escribir { position: sticky; bottom: 0; display: flex; gap: 8px; align-items: flex-end;
  padding: 8px 0 max(10px, env(safe-area-inset-bottom)); background: var(--fondo); }
.escribir textarea { flex: 1; resize: none; border: 0.5px solid var(--linea); border-radius: 18px; padding: 8px 14px;
  background: var(--tarjeta); max-height: 140px; }
.escribir button { border: 0; border-radius: 18px; background: var(--azul); color: #fff; font-weight: 600;
  padding: 8px 16px; cursor: pointer; }
.escribir button:disabled { opacity: .45; cursor: default; }
.error { position: fixed; left: 16px; right: 16px; bottom: 16px; background: var(--rojo); color: #fff;
  border-radius: 12px; padding: 12px 14px; font-size: 14px; z-index: 10; }
@media (max-width: 480px) { .burbuja { max-width: 90%; } .barra h1 { font-size: 16px; } }