/* Define aquí las variables globales (modo claro) */
:root {
    :root {
        --color-fondo: #f7f7f7;
        --color-texto: #222;
        --color-acento: #0066ff;
        --color-secundario: #ffffff;
        --espaciado-base: 1rem;
        --radio-base: 0.5rem;
        --sombra: 0 2px 8px rgba(0,0,0,0.08);
        --fuente-base: system-ui, sans-serif;
      }
      
      /* === Modo oscuro automático === */
      @media (prefers-color-scheme: dark) {
        :root {
          --color-fondo: #121212;
          --color-texto: #eaeaea;
          --color-acento: #4da3ff;
          --color-secundario: #1e1e1e;
          --sombra: 0 2px 8px rgba(255,255,255,0.06);
        }
      }
 
}

/* Estilos base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--fuente-base);
  background-color: var(--color-fondo);
  color: var(--color-texto);
  line-height: 1.6;
  padding: var(--espaciado-base);
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 3rem;
}

h1 {
  color: var(--color-acento);
  margin-bottom: var(--espaciado-base);
}

a {
  color: var(--color-texto);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button {
  margin-top:  var(--espaciado-base);
  padding: 0.8rem 1.6rem;
  font-size: 1rem;
  background-color: rgb(194, 194, 172);
  color: var(--color-texto);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: rgb(158, 158, 140);
}

/* Switch para el modo oscuro */
.switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.switch input {
  display: none;
}

.slider {
  position: relative;
  width: 40px;
  height: 20px;
  background-color: rgb(194, 194, 172);
  border-radius: 20px;
  transition: 0.3s;
}

.slider::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  left: 1px;
  top: 1px;
  background-color: white;
  border-radius: 50%;
  transition: 0.3s;
}

input:checked + .slider {
  background-color: rgb(194, 194, 172);
}

input:checked + .slider::before {
  transform: translateX(20px);
}

.label-text {
  font-size: 0.9rem;
}