<div id="ui"></div>

```js
// ===== SIGNALS =====
const fruta = $("");
const color = $("#3b82f6");
const fecha = $("");
const rango = $({ start: null, end: null });
const pais = $("");

// ===== OPCIONES =====
const frutas = [
  "Manzana",
  "Pera",
  "Plátano",
  "Fresa",
  "Mango",
  "Sandía",
  "Melón",
  "Uva",
];
const paises = [
  { label: "🇪🇸 España", value: "ES" },
  { label: "🇲🇽 México", value: "MX" },
  { label: "🇦🇷 Argentina", value: "AR" },
  { label: "🇨🇴 Colombia", value: "CO" },
  { label: "🇨🇱 Chile", value: "CL" },
];

mount(
  () =>
    div({ class: "p-8 max-w-md mx-auto flex flex-col gap-4" }, [
      h1({ class: "text-2xl font-bold" }, "Field Components"),

      // Autocomplete simple
      ui.autocomplete({
        label: "Fruta favorita",
        items: frutas,
        value: fruta,
        placeholder: "Buscar fruta...",
      }),

      // Autocomplete con objetos
      ui.autocomplete({
        label: "País",
        items: paises,
        value: pais,
        placeholder: "Elige un país...",
      }),

      // Datepicker simple
      ui.datepicker({
        label: "Fecha de nacimiento",
        value: fecha,
        placeholder: "Selecciona fecha...",
      }),

      // Datepicker rango
      ui.datepicker({
        label: "Estancia",
        range: true,
        value: rango,
        placeholder: "Check-in → Check-out",
      }),

      // Colorpicker
      ui.colorpicker({
        label: "Color favorito",
        value: color,
        placeholder: "Elige un color...",
      }),

      ui.password({}),
      ui.theme(),
      // Preview
      div(
        { class: "bg-base-200 rounded-box p-4 flex flex-col gap-2 text-sm" },
        [
          div({}, () => `🍎 Fruta: ${val(fruta) || "—"}`),
          div({}, () => `🌍 País: ${val(pais) || "—"}`),
          div({}, () => `📅 Fecha: ${val(fecha) || "—"}`),
          div({}, () => {
            const r = val(rango);
            return r.start && r.end
              ? `🏨 Estancia: ${r.start} → ${r.end}`
              : "🏨 Estancia: —";
          }),
          div({ class: "flex items-center gap-2" }, [
            span({}, "🎨 Color:"),
            div({
              class: "w-6 h-6 rounded border border-base-300",
              style: () => `background:${val(color)}`,
            }),
          ]),
        ],
      ),
    ]),
  "#ui",
);
```